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vbagx/source/vba/gb/GB.cpp

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upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "../System.h"
#include "../NLS.h"
#include "gb.h"
#include "gbCheats.h"
#include "gbGlobals.h"
#include "gbMemory.h"
#include "gbSGB.h"
#include "gbSound.h"
#include "../Util.h"
#ifdef __GNUC__
#define _stricmp strcasecmp
#endif
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
2009-04-26 02:05:49 +02:00
void gbSetBGPalette(u8 value, bool ColoursChanged=false);
void gbSetObj0Palette(u8 value, bool ColoursChanged=false);
void gbSetObj1Palette(u8 value, bool ColoursChanged=false);
GB Palette editing (saving doesn't work yet). More built-in palettes. Palettes now fade to white correctly instead of getting brighter. Star Wars, TMNT, Lord Of The Rings, Wii Controls. Some (disabled) logging functions.
2009-05-27 19:31:18 +02:00
void gbPaletteReset();
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
2009-04-26 02:05:49 +02:00
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
extern u8 *pix;
extern bool speedup;
bool gbUpdateSizes();
bool inBios = false;
// debugging
bool memorydebug = false;
char gbBuffer[2048];
extern u16 gbLineMix[160];
// mappers
void (*mapper)(u16,u8) = NULL;
void (*mapperRAM)(u16,u8) = NULL;
u8 (*mapperReadRAM)(u16) = NULL;
void (*mapperUpdateClock)() = NULL;
// registers
gbRegister PC;
gbRegister SP;
gbRegister AF;
gbRegister BC;
gbRegister DE;
gbRegister HL;
u16 IFF = 0;
// 0xff04
u8 register_DIV = 0;
// 0xff05
u8 register_TIMA = 0;
// 0xff06
u8 register_TMA = 0;
// 0xff07
u8 register_TAC = 0;
// 0xff0f
u8 register_IF = 0;
// 0xff40
u8 register_LCDC = 0;
// 0xff41
u8 register_STAT = 0;
// 0xff42
u8 register_SCY = 0;
// 0xff43
u8 register_SCX = 0;
// 0xff44
u8 register_LY = 0;
// 0xff45
u8 register_LYC = 0;
// 0xff46
u8 register_DMA = 0;
// 0xff4a
u8 register_WY = 0;
// 0xff4b
u8 register_WX = 0;
// 0xff4f
u8 register_VBK = 0;
// 0xff51
u8 register_HDMA1 = 0;
// 0xff52
u8 register_HDMA2 = 0;
// 0xff53
u8 register_HDMA3 = 0;
// 0xff54
u8 register_HDMA4 = 0;
// 0xff55
u8 register_HDMA5 = 0;
// 0xff70
u8 register_SVBK = 0;
// 0xffff
u8 register_IE = 0;
// ticks definition
int GBDIV_CLOCK_TICKS = 64;
int GBLCD_MODE_0_CLOCK_TICKS = 51;
int GBLCD_MODE_1_CLOCK_TICKS = 1140;
int GBLCD_MODE_2_CLOCK_TICKS = 20;
int GBLCD_MODE_3_CLOCK_TICKS = 43;
int GBLY_INCREMENT_CLOCK_TICKS = 114;
int GBTIMER_MODE_0_CLOCK_TICKS = 256;
int GBTIMER_MODE_1_CLOCK_TICKS = 4;
int GBTIMER_MODE_2_CLOCK_TICKS = 16;
int GBTIMER_MODE_3_CLOCK_TICKS = 64;
int GBSERIAL_CLOCK_TICKS = 128;
int GBSYNCHRONIZE_CLOCK_TICKS = 52920;
// state variables
// general
int clockTicks = 0;
bool gbSystemMessage = false;
int gbGBCColorType = 0;
int gbHardware = 0;
int gbRomType = 0;
int gbRemainingClockTicks = 0;
int gbOldClockTicks = 0;
int gbIntBreak = 0;
int gbInterruptLaunched = 0;
u8 gbCheatingDevice = 0; // 1 = GS, 2 = GG
// breakpoint
bool breakpoint = false;
// interrupt
int gbInt48Signal = 0;
int gbInterruptWait = 0;
// serial
int gbSerialOn = 0;
int gbSerialTicks = 0;
int gbSerialBits = 0;
// timer
bool gbTimerOn = false;
int gbTimerTicks = GBTIMER_MODE_0_CLOCK_TICKS;
int gbTimerClockTicks = GBTIMER_MODE_0_CLOCK_TICKS;
int gbTimerMode = 0;
bool gbIncreased = false;
// The internal timer is always active, and it is
// not reset by writing to register_TIMA/TMA, but by
// writing to register_DIV...
int gbInternalTimer = 0x55;
const u8 gbTimerMask [4] = {0xff, 0x3, 0xf, 0x3f};
const u8 gbTimerBug [8] = {0x80, 0x80, 0x02, 0x02, 0x0, 0xff, 0x0, 0xff};
bool gbTimerModeChange = false;
bool gbTimerOnChange = false;
// lcd
bool gbScreenOn = true;
int gbLcdMode = 2;
int gbLcdModeDelayed = 2;
int gbLcdTicks = GBLCD_MODE_2_CLOCK_TICKS-1;
int gbLcdTicksDelayed = GBLCD_MODE_2_CLOCK_TICKS;
int gbLcdLYIncrementTicks = 114;
int gbLcdLYIncrementTicksDelayed = 115;
int gbScreenTicks = 0;
u8 gbSCYLine[300];
u8 gbSCXLine[300];
u8 gbBgpLine[300];
u8 gbObp0Line [300];
u8 gbObp1Line [300];
u8 gbSpritesTicks [300];
u8 oldRegister_WY;
bool gbLYChangeHappened = false;
bool gbLCDChangeHappened = false;
int gbLine99Ticks = 1;
int gbRegisterLYLCDCOffOn = 0;
int inUseRegister_WY = 0;
// Used to keep track of the line that ellapse
// when screen is off
int gbWhiteScreen = 0;
bool gbBlackScreen = false;
int register_LCDCBusy = 0;
// div
int gbDivTicks = GBDIV_CLOCK_TICKS;
// cgb
int gbVramBank = 0;
int gbWramBank = 1;
//sgb
bool gbSgbResetFlag = false;
// gbHdmaDestination is 0x99d0 on startup (tested on HW)
// but I'm not sure what gbHdmaSource is...
int gbHdmaSource = 0x99d0;
int gbHdmaDestination = 0x99d0;
int gbHdmaBytes = 0x0000;
int gbHdmaOn = 0;
int gbSpeed = 0;
// frame counting
int gbFrameCount = 0;
int gbFrameSkip = 0;
int gbFrameSkipCount = 0;
// timing
u32 gbLastTime = 0;
u32 gbElapsedTime = 0;
u32 gbTimeNow = 0;
int gbSynchronizeTicks = GBSYNCHRONIZE_CLOCK_TICKS;
// emulator features
int gbBattery = 0;
bool gbBatteryError = false;
int gbCaptureNumber = 0;
bool gbCapture = false;
bool gbCapturePrevious = false;
int gbJoymask[4] = { 0, 0, 0, 0 };
u8 gbRamFill = 0xff;
int gbRomSizes[] = { 0x00008000, // 32K
0x00010000, // 64K
0x00020000, // 128K
0x00040000, // 256K
0x00080000, // 512K
0x00100000, // 1024K
0x00200000, // 2048K
0x00400000, // 4096K
0x00800000 // 8192K
};
int gbRomSizesMasks[] = { 0x00007fff,
0x0000ffff,
0x0001ffff,
0x0003ffff,
0x0007ffff,
0x000fffff,
0x001fffff,
0x003fffff,
0x007fffff
};
int gbRamSizes[6] = { 0x00000000, // 0K
0x00002000, // 2K // Changed to 2000 to avoid problems with gbMemoryMap...
0x00002000, // 8K
0x00008000, // 32K
0x00020000, // 128K
0x00010000 // 64K
};
int gbRamSizesMasks[6] = { 0x00000000,
0x000007ff,
0x00001fff,
0x00007fff,
0x0001ffff,
0x0000ffff
};
int gbCycles[] = {
// 0 1 2 3 4 5 6 7 8 9 a b c d e f
1, 3, 2, 2, 1, 1, 2, 1, 5, 2, 2, 2, 1, 1, 2, 1, // 0
1, 3, 2, 2, 1, 1, 2, 1, 3, 2, 2, 2, 1, 1, 2, 1, // 1
2, 3, 2, 2, 1, 1, 2, 1, 2, 2, 2, 2, 1, 1, 2, 1, // 2
2, 3, 2, 2, 3, 3, 3, 1, 2, 2, 2, 2, 1, 1, 2, 1, // 3
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // 4
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // 5
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // 6
2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, // 7
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // 8
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // 9
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // a
1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, // b
2, 3, 3, 4, 3, 4, 2, 4, 2, 4, 3, 2, 3, 6, 2, 4, // c
2, 3, 3, 1, 3, 4, 2, 4, 2, 4, 3, 1, 3, 1, 2, 4, // d
3, 3, 2, 1, 1, 4, 2, 4, 4, 1, 4, 1, 1, 1, 2, 4, // e
3, 3, 2, 1, 1, 4, 2, 4, 3, 2, 4, 1, 0, 1, 2, 4 // f
};
int gbCyclesCB[] = {
// 0 1 2 3 4 5 6 7 8 9 a b c d e f
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 0
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 1
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 2
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 3
2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // 4
2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // 5
2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // 6
2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // 7
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 8
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // 9
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // a
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // b
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // c
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // d
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, // e
2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2 // f
};
u16 DAATable[] = {
0x0080,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700,
0x0800,0x0900,0x1020,0x1120,0x1220,0x1320,0x1420,0x1520,
0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700,
0x1800,0x1900,0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,
0x2000,0x2100,0x2200,0x2300,0x2400,0x2500,0x2600,0x2700,
0x2800,0x2900,0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,
0x3000,0x3100,0x3200,0x3300,0x3400,0x3500,0x3600,0x3700,
0x3800,0x3900,0x4020,0x4120,0x4220,0x4320,0x4420,0x4520,
0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700,
0x4800,0x4900,0x5020,0x5120,0x5220,0x5320,0x5420,0x5520,
0x5000,0x5100,0x5200,0x5300,0x5400,0x5500,0x5600,0x5700,
0x5800,0x5900,0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,
0x6000,0x6100,0x6200,0x6300,0x6400,0x6500,0x6600,0x6700,
0x6800,0x6900,0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,
0x7000,0x7100,0x7200,0x7300,0x7400,0x7500,0x7600,0x7700,
0x7800,0x7900,0x8020,0x8120,0x8220,0x8320,0x8420,0x8520,
0x8000,0x8100,0x8200,0x8300,0x8400,0x8500,0x8600,0x8700,
0x8800,0x8900,0x9020,0x9120,0x9220,0x9320,0x9420,0x9520,
0x9000,0x9100,0x9200,0x9300,0x9400,0x9500,0x9600,0x9700,
0x9800,0x9900,0x00B0,0x0130,0x0230,0x0330,0x0430,0x0530,
0x0090,0x0110,0x0210,0x0310,0x0410,0x0510,0x0610,0x0710,
0x0810,0x0910,0x1030,0x1130,0x1230,0x1330,0x1430,0x1530,
0x1010,0x1110,0x1210,0x1310,0x1410,0x1510,0x1610,0x1710,
0x1810,0x1910,0x2030,0x2130,0x2230,0x2330,0x2430,0x2530,
0x2010,0x2110,0x2210,0x2310,0x2410,0x2510,0x2610,0x2710,
0x2810,0x2910,0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,
0x3010,0x3110,0x3210,0x3310,0x3410,0x3510,0x3610,0x3710,
0x3810,0x3910,0x4030,0x4130,0x4230,0x4330,0x4430,0x4530,
0x4010,0x4110,0x4210,0x4310,0x4410,0x4510,0x4610,0x4710,
0x4810,0x4910,0x5030,0x5130,0x5230,0x5330,0x5430,0x5530,
0x5010,0x5110,0x5210,0x5310,0x5410,0x5510,0x5610,0x5710,
0x5810,0x5910,0x6030,0x6130,0x6230,0x6330,0x6430,0x6530,
0x6010,0x6110,0x6210,0x6310,0x6410,0x6510,0x6610,0x6710,
0x6810,0x6910,0x7030,0x7130,0x7230,0x7330,0x7430,0x7530,
0x7010,0x7110,0x7210,0x7310,0x7410,0x7510,0x7610,0x7710,
0x7810,0x7910,0x8030,0x8130,0x8230,0x8330,0x8430,0x8530,
0x8010,0x8110,0x8210,0x8310,0x8410,0x8510,0x8610,0x8710,
0x8810,0x8910,0x9030,0x9130,0x9230,0x9330,0x9430,0x9530,
0x9010,0x9110,0x9210,0x9310,0x9410,0x9510,0x9610,0x9710,
0x9810,0x9910,0xA030,0xA130,0xA230,0xA330,0xA430,0xA530,
0xA010,0xA110,0xA210,0xA310,0xA410,0xA510,0xA610,0xA710,
0xA810,0xA910,0xB030,0xB130,0xB230,0xB330,0xB430,0xB530,
0xB010,0xB110,0xB210,0xB310,0xB410,0xB510,0xB610,0xB710,
0xB810,0xB910,0xC030,0xC130,0xC230,0xC330,0xC430,0xC530,
0xC010,0xC110,0xC210,0xC310,0xC410,0xC510,0xC610,0xC710,
0xC810,0xC910,0xD030,0xD130,0xD230,0xD330,0xD430,0xD530,
0xD010,0xD110,0xD210,0xD310,0xD410,0xD510,0xD610,0xD710,
0xD810,0xD910,0xE030,0xE130,0xE230,0xE330,0xE430,0xE530,
0xE010,0xE110,0xE210,0xE310,0xE410,0xE510,0xE610,0xE710,
0xE810,0xE910,0xF030,0xF130,0xF230,0xF330,0xF430,0xF530,
0xF010,0xF110,0xF210,0xF310,0xF410,0xF510,0xF610,0xF710,
0xF810,0xF910,0x00B0,0x0130,0x0230,0x0330,0x0430,0x0530,
0x0090,0x0110,0x0210,0x0310,0x0410,0x0510,0x0610,0x0710,
0x0810,0x0910,0x1030,0x1130,0x1230,0x1330,0x1430,0x1530,
0x1010,0x1110,0x1210,0x1310,0x1410,0x1510,0x1610,0x1710,
0x1810,0x1910,0x2030,0x2130,0x2230,0x2330,0x2430,0x2530,
0x2010,0x2110,0x2210,0x2310,0x2410,0x2510,0x2610,0x2710,
0x2810,0x2910,0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,
0x3010,0x3110,0x3210,0x3310,0x3410,0x3510,0x3610,0x3710,
0x3810,0x3910,0x4030,0x4130,0x4230,0x4330,0x4430,0x4530,
0x4010,0x4110,0x4210,0x4310,0x4410,0x4510,0x4610,0x4710,
0x4810,0x4910,0x5030,0x5130,0x5230,0x5330,0x5430,0x5530,
0x5010,0x5110,0x5210,0x5310,0x5410,0x5510,0x5610,0x5710,
0x5810,0x5910,0x6030,0x6130,0x6230,0x6330,0x6430,0x6530,
0x0600,0x0700,0x0800,0x0900,0x0A00,0x0B00,0x0C00,0x0D00,
0x0E00,0x0F00,0x1020,0x1120,0x1220,0x1320,0x1420,0x1520,
0x1600,0x1700,0x1800,0x1900,0x1A00,0x1B00,0x1C00,0x1D00,
0x1E00,0x1F00,0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,
0x2600,0x2700,0x2800,0x2900,0x2A00,0x2B00,0x2C00,0x2D00,
0x2E00,0x2F00,0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,
0x3600,0x3700,0x3800,0x3900,0x3A00,0x3B00,0x3C00,0x3D00,
0x3E00,0x3F00,0x4020,0x4120,0x4220,0x4320,0x4420,0x4520,
0x4600,0x4700,0x4800,0x4900,0x4A00,0x4B00,0x4C00,0x4D00,
0x4E00,0x4F00,0x5020,0x5120,0x5220,0x5320,0x5420,0x5520,
0x5600,0x5700,0x5800,0x5900,0x5A00,0x5B00,0x5C00,0x5D00,
0x5E00,0x5F00,0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,
0x6600,0x6700,0x6800,0x6900,0x6A00,0x6B00,0x6C00,0x6D00,
0x6E00,0x6F00,0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,
0x7600,0x7700,0x7800,0x7900,0x7A00,0x7B00,0x7C00,0x7D00,
0x7E00,0x7F00,0x8020,0x8120,0x8220,0x8320,0x8420,0x8520,
0x8600,0x8700,0x8800,0x8900,0x8A00,0x8B00,0x8C00,0x8D00,
0x8E00,0x8F00,0x9020,0x9120,0x9220,0x9320,0x9420,0x9520,
0x9600,0x9700,0x9800,0x9900,0x9A00,0x9B00,0x9C00,0x9D00,
0x9E00,0x9F00,0x00B0,0x0130,0x0230,0x0330,0x0430,0x0530,
0x0610,0x0710,0x0810,0x0910,0x0A10,0x0B10,0x0C10,0x0D10,
0x0E10,0x0F10,0x1030,0x1130,0x1230,0x1330,0x1430,0x1530,
0x1610,0x1710,0x1810,0x1910,0x1A10,0x1B10,0x1C10,0x1D10,
0x1E10,0x1F10,0x2030,0x2130,0x2230,0x2330,0x2430,0x2530,
0x2610,0x2710,0x2810,0x2910,0x2A10,0x2B10,0x2C10,0x2D10,
0x2E10,0x2F10,0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,
0x3610,0x3710,0x3810,0x3910,0x3A10,0x3B10,0x3C10,0x3D10,
0x3E10,0x3F10,0x4030,0x4130,0x4230,0x4330,0x4430,0x4530,
0x4610,0x4710,0x4810,0x4910,0x4A10,0x4B10,0x4C10,0x4D10,
0x4E10,0x4F10,0x5030,0x5130,0x5230,0x5330,0x5430,0x5530,
0x5610,0x5710,0x5810,0x5910,0x5A10,0x5B10,0x5C10,0x5D10,
0x5E10,0x5F10,0x6030,0x6130,0x6230,0x6330,0x6430,0x6530,
0x6610,0x6710,0x6810,0x6910,0x6A10,0x6B10,0x6C10,0x6D10,
0x6E10,0x6F10,0x7030,0x7130,0x7230,0x7330,0x7430,0x7530,
0x7610,0x7710,0x7810,0x7910,0x7A10,0x7B10,0x7C10,0x7D10,
0x7E10,0x7F10,0x8030,0x8130,0x8230,0x8330,0x8430,0x8530,
0x8610,0x8710,0x8810,0x8910,0x8A10,0x8B10,0x8C10,0x8D10,
0x8E10,0x8F10,0x9030,0x9130,0x9230,0x9330,0x9430,0x9530,
0x9610,0x9710,0x9810,0x9910,0x9A10,0x9B10,0x9C10,0x9D10,
0x9E10,0x9F10,0xA030,0xA130,0xA230,0xA330,0xA430,0xA530,
0xA610,0xA710,0xA810,0xA910,0xAA10,0xAB10,0xAC10,0xAD10,
0xAE10,0xAF10,0xB030,0xB130,0xB230,0xB330,0xB430,0xB530,
0xB610,0xB710,0xB810,0xB910,0xBA10,0xBB10,0xBC10,0xBD10,
0xBE10,0xBF10,0xC030,0xC130,0xC230,0xC330,0xC430,0xC530,
0xC610,0xC710,0xC810,0xC910,0xCA10,0xCB10,0xCC10,0xCD10,
0xCE10,0xCF10,0xD030,0xD130,0xD230,0xD330,0xD430,0xD530,
0xD610,0xD710,0xD810,0xD910,0xDA10,0xDB10,0xDC10,0xDD10,
0xDE10,0xDF10,0xE030,0xE130,0xE230,0xE330,0xE430,0xE530,
0xE610,0xE710,0xE810,0xE910,0xEA10,0xEB10,0xEC10,0xED10,
0xEE10,0xEF10,0xF030,0xF130,0xF230,0xF330,0xF430,0xF530,
0xF610,0xF710,0xF810,0xF910,0xFA10,0xFB10,0xFC10,0xFD10,
0xFE10,0xFF10,0x00B0,0x0130,0x0230,0x0330,0x0430,0x0530,
0x0610,0x0710,0x0810,0x0910,0x0A10,0x0B10,0x0C10,0x0D10,
0x0E10,0x0F10,0x1030,0x1130,0x1230,0x1330,0x1430,0x1530,
0x1610,0x1710,0x1810,0x1910,0x1A10,0x1B10,0x1C10,0x1D10,
0x1E10,0x1F10,0x2030,0x2130,0x2230,0x2330,0x2430,0x2530,
0x2610,0x2710,0x2810,0x2910,0x2A10,0x2B10,0x2C10,0x2D10,
0x2E10,0x2F10,0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,
0x3610,0x3710,0x3810,0x3910,0x3A10,0x3B10,0x3C10,0x3D10,
0x3E10,0x3F10,0x4030,0x4130,0x4230,0x4330,0x4430,0x4530,
0x4610,0x4710,0x4810,0x4910,0x4A10,0x4B10,0x4C10,0x4D10,
0x4E10,0x4F10,0x5030,0x5130,0x5230,0x5330,0x5430,0x5530,
0x5610,0x5710,0x5810,0x5910,0x5A10,0x5B10,0x5C10,0x5D10,
0x5E10,0x5F10,0x6030,0x6130,0x6230,0x6330,0x6430,0x6530,
0x00C0,0x0140,0x0240,0x0340,0x0440,0x0540,0x0640,0x0740,
0x0840,0x0940,0x0440,0x0540,0x0640,0x0740,0x0840,0x0940,
0x1040,0x1140,0x1240,0x1340,0x1440,0x1540,0x1640,0x1740,
0x1840,0x1940,0x1440,0x1540,0x1640,0x1740,0x1840,0x1940,
0x2040,0x2140,0x2240,0x2340,0x2440,0x2540,0x2640,0x2740,
0x2840,0x2940,0x2440,0x2540,0x2640,0x2740,0x2840,0x2940,
0x3040,0x3140,0x3240,0x3340,0x3440,0x3540,0x3640,0x3740,
0x3840,0x3940,0x3440,0x3540,0x3640,0x3740,0x3840,0x3940,
0x4040,0x4140,0x4240,0x4340,0x4440,0x4540,0x4640,0x4740,
0x4840,0x4940,0x4440,0x4540,0x4640,0x4740,0x4840,0x4940,
0x5040,0x5140,0x5240,0x5340,0x5440,0x5540,0x5640,0x5740,
0x5840,0x5940,0x5440,0x5540,0x5640,0x5740,0x5840,0x5940,
0x6040,0x6140,0x6240,0x6340,0x6440,0x6540,0x6640,0x6740,
0x6840,0x6940,0x6440,0x6540,0x6640,0x6740,0x6840,0x6940,
0x7040,0x7140,0x7240,0x7340,0x7440,0x7540,0x7640,0x7740,
0x7840,0x7940,0x7440,0x7540,0x7640,0x7740,0x7840,0x7940,
0x8040,0x8140,0x8240,0x8340,0x8440,0x8540,0x8640,0x8740,
0x8840,0x8940,0x8440,0x8540,0x8640,0x8740,0x8840,0x8940,
0x9040,0x9140,0x9240,0x9340,0x9440,0x9540,0x9640,0x9740,
0x9840,0x9940,0x3450,0x3550,0x3650,0x3750,0x3850,0x3950,
0x4050,0x4150,0x4250,0x4350,0x4450,0x4550,0x4650,0x4750,
0x4850,0x4950,0x4450,0x4550,0x4650,0x4750,0x4850,0x4950,
0x5050,0x5150,0x5250,0x5350,0x5450,0x5550,0x5650,0x5750,
0x5850,0x5950,0x5450,0x5550,0x5650,0x5750,0x5850,0x5950,
0x6050,0x6150,0x6250,0x6350,0x6450,0x6550,0x6650,0x6750,
0x6850,0x6950,0x6450,0x6550,0x6650,0x6750,0x6850,0x6950,
0x7050,0x7150,0x7250,0x7350,0x7450,0x7550,0x7650,0x7750,
0x7850,0x7950,0x7450,0x7550,0x7650,0x7750,0x7850,0x7950,
0x8050,0x8150,0x8250,0x8350,0x8450,0x8550,0x8650,0x8750,
0x8850,0x8950,0x8450,0x8550,0x8650,0x8750,0x8850,0x8950,
0x9050,0x9150,0x9250,0x9350,0x9450,0x9550,0x9650,0x9750,
0x9850,0x9950,0x9450,0x9550,0x9650,0x9750,0x9850,0x9950,
0xA050,0xA150,0xA250,0xA350,0xA450,0xA550,0xA650,0xA750,
0xA850,0xA950,0xA450,0xA550,0xA650,0xA750,0xA850,0xA950,
0xB050,0xB150,0xB250,0xB350,0xB450,0xB550,0xB650,0xB750,
0xB850,0xB950,0xB450,0xB550,0xB650,0xB750,0xB850,0xB950,
0xC050,0xC150,0xC250,0xC350,0xC450,0xC550,0xC650,0xC750,
0xC850,0xC950,0xC450,0xC550,0xC650,0xC750,0xC850,0xC950,
0xD050,0xD150,0xD250,0xD350,0xD450,0xD550,0xD650,0xD750,
0xD850,0xD950,0xD450,0xD550,0xD650,0xD750,0xD850,0xD950,
0xE050,0xE150,0xE250,0xE350,0xE450,0xE550,0xE650,0xE750,
0xE850,0xE950,0xE450,0xE550,0xE650,0xE750,0xE850,0xE950,
0xF050,0xF150,0xF250,0xF350,0xF450,0xF550,0xF650,0xF750,
0xF850,0xF950,0xF450,0xF550,0xF650,0xF750,0xF850,0xF950,
0x00D0,0x0150,0x0250,0x0350,0x0450,0x0550,0x0650,0x0750,
0x0850,0x0950,0x0450,0x0550,0x0650,0x0750,0x0850,0x0950,
0x1050,0x1150,0x1250,0x1350,0x1450,0x1550,0x1650,0x1750,
0x1850,0x1950,0x1450,0x1550,0x1650,0x1750,0x1850,0x1950,
0x2050,0x2150,0x2250,0x2350,0x2450,0x2550,0x2650,0x2750,
0x2850,0x2950,0x2450,0x2550,0x2650,0x2750,0x2850,0x2950,
0x3050,0x3150,0x3250,0x3350,0x3450,0x3550,0x3650,0x3750,
0x3850,0x3950,0x3450,0x3550,0x3650,0x3750,0x3850,0x3950,
0x4050,0x4150,0x4250,0x4350,0x4450,0x4550,0x4650,0x4750,
0x4850,0x4950,0x4450,0x4550,0x4650,0x4750,0x4850,0x4950,
0x5050,0x5150,0x5250,0x5350,0x5450,0x5550,0x5650,0x5750,
0x5850,0x5950,0x5450,0x5550,0x5650,0x5750,0x5850,0x5950,
0x6050,0x6150,0x6250,0x6350,0x6450,0x6550,0x6650,0x6750,
0x6850,0x6950,0x6450,0x6550,0x6650,0x6750,0x6850,0x6950,
0x7050,0x7150,0x7250,0x7350,0x7450,0x7550,0x7650,0x7750,
0x7850,0x7950,0x7450,0x7550,0x7650,0x7750,0x7850,0x7950,
0x8050,0x8150,0x8250,0x8350,0x8450,0x8550,0x8650,0x8750,
0x8850,0x8950,0x8450,0x8550,0x8650,0x8750,0x8850,0x8950,
0x9050,0x9150,0x9250,0x9350,0x9450,0x9550,0x9650,0x9750,
0x9850,0x9950,0x9450,0x9550,0x9650,0x9750,0x9850,0x9950,
0xFA60,0xFB60,0xFC60,0xFD60,0xFE60,0xFF60,0x00C0,0x0140,
0x0240,0x0340,0x0440,0x0540,0x0640,0x0740,0x0840,0x0940,
0x0A60,0x0B60,0x0C60,0x0D60,0x0E60,0x0F60,0x1040,0x1140,
0x1240,0x1340,0x1440,0x1540,0x1640,0x1740,0x1840,0x1940,
0x1A60,0x1B60,0x1C60,0x1D60,0x1E60,0x1F60,0x2040,0x2140,
0x2240,0x2340,0x2440,0x2540,0x2640,0x2740,0x2840,0x2940,
0x2A60,0x2B60,0x2C60,0x2D60,0x2E60,0x2F60,0x3040,0x3140,
0x3240,0x3340,0x3440,0x3540,0x3640,0x3740,0x3840,0x3940,
0x3A60,0x3B60,0x3C60,0x3D60,0x3E60,0x3F60,0x4040,0x4140,
0x4240,0x4340,0x4440,0x4540,0x4640,0x4740,0x4840,0x4940,
0x4A60,0x4B60,0x4C60,0x4D60,0x4E60,0x4F60,0x5040,0x5140,
0x5240,0x5340,0x5440,0x5540,0x5640,0x5740,0x5840,0x5940,
0x5A60,0x5B60,0x5C60,0x5D60,0x5E60,0x5F60,0x6040,0x6140,
0x6240,0x6340,0x6440,0x6540,0x6640,0x6740,0x6840,0x6940,
0x6A60,0x6B60,0x6C60,0x6D60,0x6E60,0x6F60,0x7040,0x7140,
0x7240,0x7340,0x7440,0x7540,0x7640,0x7740,0x7840,0x7940,
0x7A60,0x7B60,0x7C60,0x7D60,0x7E60,0x7F60,0x8040,0x8140,
0x8240,0x8340,0x8440,0x8540,0x8640,0x8740,0x8840,0x8940,
0x8A60,0x8B60,0x8C60,0x8D60,0x8E60,0x8F60,0x9040,0x9140,
0x9240,0x9340,0x3450,0x3550,0x3650,0x3750,0x3850,0x3950,
0x3A70,0x3B70,0x3C70,0x3D70,0x3E70,0x3F70,0x4050,0x4150,
0x4250,0x4350,0x4450,0x4550,0x4650,0x4750,0x4850,0x4950,
0x4A70,0x4B70,0x4C70,0x4D70,0x4E70,0x4F70,0x5050,0x5150,
0x5250,0x5350,0x5450,0x5550,0x5650,0x5750,0x5850,0x5950,
0x5A70,0x5B70,0x5C70,0x5D70,0x5E70,0x5F70,0x6050,0x6150,
0x6250,0x6350,0x6450,0x6550,0x6650,0x6750,0x6850,0x6950,
0x6A70,0x6B70,0x6C70,0x6D70,0x6E70,0x6F70,0x7050,0x7150,
0x7250,0x7350,0x7450,0x7550,0x7650,0x7750,0x7850,0x7950,
0x7A70,0x7B70,0x7C70,0x7D70,0x7E70,0x7F70,0x8050,0x8150,
0x8250,0x8350,0x8450,0x8550,0x8650,0x8750,0x8850,0x8950,
0x8A70,0x8B70,0x8C70,0x8D70,0x8E70,0x8F70,0x9050,0x9150,
0x9250,0x9350,0x9450,0x9550,0x9650,0x9750,0x9850,0x9950,
0x9A70,0x9B70,0x9C70,0x9D70,0x9E70,0x9F70,0xA050,0xA150,
0xA250,0xA350,0xA450,0xA550,0xA650,0xA750,0xA850,0xA950,
0xAA70,0xAB70,0xAC70,0xAD70,0xAE70,0xAF70,0xB050,0xB150,
0xB250,0xB350,0xB450,0xB550,0xB650,0xB750,0xB850,0xB950,
0xBA70,0xBB70,0xBC70,0xBD70,0xBE70,0xBF70,0xC050,0xC150,
0xC250,0xC350,0xC450,0xC550,0xC650,0xC750,0xC850,0xC950,
0xCA70,0xCB70,0xCC70,0xCD70,0xCE70,0xCF70,0xD050,0xD150,
0xD250,0xD350,0xD450,0xD550,0xD650,0xD750,0xD850,0xD950,
0xDA70,0xDB70,0xDC70,0xDD70,0xDE70,0xDF70,0xE050,0xE150,
0xE250,0xE350,0xE450,0xE550,0xE650,0xE750,0xE850,0xE950,
0xEA70,0xEB70,0xEC70,0xED70,0xEE70,0xEF70,0xF050,0xF150,
0xF250,0xF350,0xF450,0xF550,0xF650,0xF750,0xF850,0xF950,
0xFA70,0xFB70,0xFC70,0xFD70,0xFE70,0xFF70,0x00D0,0x0150,
0x0250,0x0350,0x0450,0x0550,0x0650,0x0750,0x0850,0x0950,
0x0A70,0x0B70,0x0C70,0x0D70,0x0E70,0x0F70,0x1050,0x1150,
0x1250,0x1350,0x1450,0x1550,0x1650,0x1750,0x1850,0x1950,
0x1A70,0x1B70,0x1C70,0x1D70,0x1E70,0x1F70,0x2050,0x2150,
0x2250,0x2350,0x2450,0x2550,0x2650,0x2750,0x2850,0x2950,
0x2A70,0x2B70,0x2C70,0x2D70,0x2E70,0x2F70,0x3050,0x3150,
0x3250,0x3350,0x3450,0x3550,0x3650,0x3750,0x3850,0x3950,
0x3A70,0x3B70,0x3C70,0x3D70,0x3E70,0x3F70,0x4050,0x4150,
0x4250,0x4350,0x4450,0x4550,0x4650,0x4750,0x4850,0x4950,
0x4A70,0x4B70,0x4C70,0x4D70,0x4E70,0x4F70,0x5050,0x5150,
0x5250,0x5350,0x5450,0x5550,0x5650,0x5750,0x5850,0x5950,
0x5A70,0x5B70,0x5C70,0x5D70,0x5E70,0x5F70,0x6050,0x6150,
0x6250,0x6350,0x6450,0x6550,0x6650,0x6750,0x6850,0x6950,
0x6A70,0x6B70,0x6C70,0x6D70,0x6E70,0x6F70,0x7050,0x7150,
0x7250,0x7350,0x7450,0x7550,0x7650,0x7750,0x7850,0x7950,
0x7A70,0x7B70,0x7C70,0x7D70,0x7E70,0x7F70,0x8050,0x8150,
0x8250,0x8350,0x8450,0x8550,0x8650,0x8750,0x8850,0x8950,
0x8A70,0x8B70,0x8C70,0x8D70,0x8E70,0x8F70,0x9050,0x9150,
0x9250,0x9350,0x9450,0x9550,0x9650,0x9750,0x9850,0x9950,
};
u8 ZeroTable[256] = {
0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0
};
#define GBSAVE_GAME_VERSION_1 1
#define GBSAVE_GAME_VERSION_2 2
#define GBSAVE_GAME_VERSION_3 3
#define GBSAVE_GAME_VERSION_4 4
#define GBSAVE_GAME_VERSION_5 5
#define GBSAVE_GAME_VERSION_6 6
#define GBSAVE_GAME_VERSION_7 7
#define GBSAVE_GAME_VERSION_8 8
#define GBSAVE_GAME_VERSION_9 9
#define GBSAVE_GAME_VERSION_10 10
#define GBSAVE_GAME_VERSION_11 11
#define GBSAVE_GAME_VERSION_12 12
#define GBSAVE_GAME_VERSION GBSAVE_GAME_VERSION_12
int inline gbGetValue(int min,int max,int v)
{
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
float o31 = float(v) / 31.0f;
return (min +((int)((float)(max-min)* o31*(2.0f - o31))));
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
}
void gbGenFilter()
{
for (int r=0;r<32;r++) {
for (int g=0;g<32;g++) {
for (int b=0;b<32;b++) {
int nr=gbGetValue(gbGetValue(4,14,g),
gbGetValue(24,29,g),r)-4;
int ng=gbGetValue(gbGetValue(4+gbGetValue(0,5,r),
14+gbGetValue(0,3,r),b),
gbGetValue(24+gbGetValue(0,3,r),
29+gbGetValue(0,1,r),b),g)-4;
int nb=gbGetValue(gbGetValue(4+gbGetValue(0,5,r),
14+gbGetValue(0,3,r),g),
gbGetValue(24+gbGetValue(0,3,r),
29+gbGetValue(0,1,r),g),b)-4;
gbColorFilter[(b<<10)|(g<<5)|r]=(nb<<10)|(ng<<5)|nr;
}
}
}
}
bool gbIsGameboyRom(char * file)
{
if(strlen(file) > 4) {
char * p = strrchr(file,'.');
if(p != NULL) {
if(_stricmp(p, ".gb") == 0)
return true;
if(_stricmp(p, ".gbc") == 0)
return true;
if(_stricmp(p, ".cgb") == 0)
return true;
if(_stricmp(p, ".sgb") == 0)
return true;
}
}
return false;
}
void gbCopyMemory(u16 d, u16 s, int count)
{
while(count) {
gbMemoryMap[d>>12][d & 0x0fff] = gbMemoryMap[s>>12][s & 0x0fff];
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++s;
++d;
--count;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
}
}
void gbDoHdma()
{
gbCopyMemory((gbHdmaDestination & 0x1ff0) | 0x8000,
gbHdmaSource & 0xfff0,
0x10);
gbHdmaDestination += 0x10;
if (gbHdmaDestination == 0xa000)
gbHdmaDestination = 0x8000;
gbHdmaSource += 0x10;
if (gbHdmaSource == 0x8000)
gbHdmaSource = 0xa000;
register_HDMA2 = gbHdmaSource & 0xff;
register_HDMA1 = gbHdmaSource>>8;
register_HDMA4 = gbHdmaDestination & 0xff;
register_HDMA3 = gbHdmaDestination>>8;
gbHdmaBytes -= 0x10;
gbMemory[0xff55] = --register_HDMA5;
if(register_HDMA5 == 0xff)
gbHdmaOn = 0;
// We need to add the dmaClockticks for HDMA !
if(gbSpeed)
gbDmaTicks = 17;
else
gbDmaTicks = 9;
if (IFF & 0x80)
optimizations from dancinninja
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++gbDmaTicks;
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}
// fix for Harley and Lego Racers
void gbCompareLYToLYC()
{
if(register_LCDC & 0x80) {
if(register_LY == register_LYC) {
// mark that we have a match
register_STAT |= 4;
// check if we need an interrupt
if (register_STAT & 0x40)
{
// send LCD interrupt only if no interrupt 48h signal...
if (!gbInt48Signal)
{
register_IF |=2;
}
gbInt48Signal |= 8;
}
}
else // no match
{
register_STAT &= 0xfb;
gbInt48Signal &=~8;
}
}
}
void gbWriteMemory(register u16 address, register u8 value)
{
if(address < 0x8000) {
#ifndef FINAL_VERSION
if(memorydebug && (address>0x3fff || address < 0x2000)) {
log("Memory register write %04x=%02x PC=%04x\n",
address,
value,
PC.W);
}
#endif
if(mapper)
(*mapper)(address, value);
return;
}
if(address < 0xa000) {
// No access to Vram during mode 3
// (used to emulate the gfx differences between GB & GBC-GBA/SP in Stunt Racer)
if ((gbLcdModeDelayed !=3) ||
// This part is used to emulate a small difference between hardwares
// (check 8-in-1's arrow on GBA/GBC to verify it)
((register_LY == 0) && ((gbHardware & 0xa) && (gbScreenOn==false) &&
(register_LCDC & 0x80)) &&
(gbLcdLYIncrementTicksDelayed ==(GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS))))
gbMemoryMap[address>>12][address&0x0fff] = value;
return;
}
// Used for the mirroring of 0xC000 in 0xE000
if ((address >= 0xe000) && (address < 0xfe00))
address &= ~0x2000;
if(address < 0xc000) {
#ifndef FINAL_VERSION
if(memorydebug) {
log("Memory register write %04x=%02x PC=%04x\n",
address,
value,
PC.W);
}
#endif
// Is that a correct fix ??? (it used to be 'if (mapper)')...
if(mapperRAM)
(*mapperRAM)(address, value);
return;
}
if(address < 0xfe00) {
gbMemoryMap[address>>12][address & 0x0fff] = value;
return;
}
// OAM not accessible during mode 2 & 3.
if(address < 0xfea0)
{
if (((gbHardware & 0xa) && ((gbLcdMode | gbLcdModeDelayed) &2)) ||
((gbHardware & 5) && (((gbLcdModeDelayed == 2) &&
(gbLcdTicksDelayed<=GBLCD_MODE_2_CLOCK_TICKS)) ||
(gbLcdModeDelayed == 3))))
return;
else
{
gbMemory[address] = value;
return;
}
}
if((address > 0xfea0) && (address < 0xff00)){ // GBC allows reading/writing to that area
gbMemory[address] = value;
return;
}
switch(address & 0x00ff) {
case 0x00: {
gbMemory[0xff00] = ((gbMemory[0xff00] & 0xcf) |
(value & 0x30) | 0xc0);
if(gbSgbMode) {
gbSgbDoBitTransfer(value);
}
return;
}
case 0x01: {
gbMemory[0xff01] = value;
return;
}
// serial control
case 0x02: {
gbSerialOn = (value & 0x80);
gbMemory[0xff02] = value;
if(gbSerialOn) {
gbSerialTicks = GBSERIAL_CLOCK_TICKS;
#ifdef LINK_EMULATION
if(linkConnected) {
if(value & 1) {
linkSendByte(0x100|gbMemory[0xFF01]);
Sleep(5);
}
}
#endif
}
gbSerialBits = 0;
return;
}
case 0x04: {
// DIV register resets on any write
// (not totally perfect, but better than nothing)
gbMemory[0xff04] = register_DIV = 0;
gbDivTicks = GBDIV_CLOCK_TICKS;
// Another weird timer 'bug' :
// Writing to DIV register resets the internal timer,
// and can also increase TIMA/trigger an interrupt
// in some cases...
if (gbTimerOn && !(gbInternalTimer & (gbTimerClockTicks>>1)))
{
gbMemory[0xff05] = ++register_TIMA;
if(register_TIMA == 0) {
// timer overflow!
// reload timer modulo
gbMemory[0xff05] = register_TIMA = register_TMA;
// flag interrupt
gbMemory[0xff0f] = register_IF |= 4;
}
}
gbInternalTimer = 0xff;
return;
}
case 0x05:
gbMemory[0xff05] = register_TIMA = value;
return;
case 0x06:
gbMemory[0xff06] = register_TMA = value;
return;
// TIMER control
case 0x07: {
gbTimerModeChange = (((value & 3) != (register_TAC&3)) && (value & register_TAC & 4)) ? true : false;
gbTimerOnChange = (((value ^ register_TAC) & 4) == 4) ? true : false;
gbTimerOn = (value & 4) ? true : false;
if (gbTimerOnChange || gbTimerModeChange)
{
gbTimerMode = value & 3;
switch(gbTimerMode) {
case 0:
gbTimerClockTicks = GBTIMER_MODE_0_CLOCK_TICKS;
break;
case 1:
gbTimerClockTicks = GBTIMER_MODE_1_CLOCK_TICKS;
break;
case 2:
gbTimerClockTicks = GBTIMER_MODE_2_CLOCK_TICKS;
break;
case 3:
gbTimerClockTicks = GBTIMER_MODE_3_CLOCK_TICKS;
break;
}
}
// This looks weird, but this emulates a bug in which register_TIMA
// is increased when writing to register_TAC
// (This fixes Korodice's long-delay between menus bug).
if (gbTimerOnChange || gbTimerModeChange)
{
bool temp = false;
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if (((gbTimerOn && !gbTimerModeChange) && (gbTimerMode & 2) &&
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!(gbInternalTimer & 0x80) && (gbInternalTimer & (gbTimerClockTicks>>1)) &&
optimizations from dancinninja
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!(gbInternalTimer & (gbTimerClockTicks>>5)))
||
((!gbTimerOn && !gbTimerModeChange && gbTimerOnChange ) && ((gbTimerTicks-1) < (gbTimerClockTicks>>1)))){
temp = true;
}else if (gbTimerOn && gbTimerModeChange && !gbTimerOnChange){
switch(gbTimerMode & 3){
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case 0x00:
temp = false;
break;
case 0x01:
if (((gbInternalTimer & 0x82) == 2) && (gbTimerTicks>(clockTicks+1)))
temp = true;
break;
case 0x02:
if (((gbInternalTimer & 0x88) == 0x8) && (gbTimerTicks>(clockTicks+1)))
temp = true;
break;
case 0x03:
if (((gbInternalTimer & 0xA0) == 0x20) && (gbTimerTicks>(clockTicks+1)))
temp = true;
break;
}
}
if (temp)
{
gbMemory[0xff05] = ++register_TIMA;
if((register_TIMA & 0xff) == 0) {
// timer overflow!
// reload timer modulo
gbMemory[0xff05] = register_TIMA = register_TMA;
// flag interrupt
gbMemory[0xff0f] = register_IF |= 4;
}
}
}
gbMemory[0xff07] = register_TAC = value;
return;
}
case 0x0f: {
gbMemory[0xff0f] = register_IF = value;
//gbMemory[0xff0f] = register_IE |= value;
return;
}
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x14:
case 0x16:
case 0x17:
case 0x18:
case 0x19:
case 0x1a:
case 0x1b:
case 0x1c:
case 0x1d:
case 0x1e:
case 0x20:
case 0x21:
case 0x22:
case 0x23:
case 0x24:
case 0x25: {
if (gbMemory[NR52] & 0x80) {
SOUND_EVENT(address,value);
return;
}
}
case 0x26: {
SOUND_EVENT(address,value);
return;
}
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
case 0x3a:
case 0x3b:
case 0x3c:
case 0x3d:
case 0x3e:
case 0x3f: {
SOUND_EVENT(address,value);
//gbMemory[address] = value;
return;
}
case 0x40: {
int lcdChange = (register_LCDC & 0x80) ^ (value & 0x80);
// don't draw the window if it was not enabled and not being drawn before
if(!(register_LCDC & 0x20) && (value & 0x20) && gbWindowLine == -1 &&
register_LY > register_WY)
gbWindowLine = 146;
// 007 fix : don't draw the first window's 1st line if it's enable 'too late'
// (ie. if register_LY == register_WY when enabling it)
// and move it to the next line
else if (!(register_LCDC & 0x20) && (value & 0x20) && (register_LY == register_WY))
gbWindowLine = -2;
gbMemory[0xff40] = register_LCDC = value;
if(lcdChange) {
if((value & 0x80) && (!register_LCDCBusy)) {
// if (!gbWhiteScreen && !gbSgbMask)
// systemDrawScreen();
gbRegisterLYLCDCOffOn = (register_LY + 144) % 154;
gbLcdTicks = GBLCD_MODE_2_CLOCK_TICKS - (gbSpeed ? 2 : 1);
gbLcdTicksDelayed = GBLCD_MODE_2_CLOCK_TICKS - (gbSpeed ? 1 : 0);
gbLcdLYIncrementTicks = GBLY_INCREMENT_CLOCK_TICKS - (gbSpeed ? 2 : 1);
gbLcdLYIncrementTicksDelayed = GBLY_INCREMENT_CLOCK_TICKS - (gbSpeed ? 1 : 0);
gbLcdMode = 2;
gbLcdModeDelayed = 2;
gbMemory[0xff41] = register_STAT = (register_STAT & 0xfc) | 2;
gbMemory[0xff44] = register_LY = 0x00;
gbInt48Signal = 0;
gbLYChangeHappened = false;
gbLCDChangeHappened = false;
gbWindowLine = 146;
oldRegister_WY = 146;
// Fix for Namco Gallery Vol.2
// (along with updating register_LCDC at the start of 'case 0x40') :
if(register_STAT & 0x20)
{
// send LCD interrupt only if no interrupt 48h signal...
if (!gbInt48Signal)
{
gbMemory[0xff0f] = register_IF |= 2;
}
gbInt48Signal |= 4;
}
gbCompareLYToLYC();
} else {
register_LCDCBusy = clockTicks+6;
//used to update the screen with white lines when it's off.
//(it looks strange, but it's pretty accurate)
gbWhiteScreen = 0;
gbScreenTicks = ((150-register_LY)*GBLY_INCREMENT_CLOCK_TICKS +
(49<<(gbSpeed ? 1 : 0)));
// disable the screen rendering
gbScreenOn = false;
gbLcdTicks = 0;
gbLcdMode = 0;
gbLcdModeDelayed = 0;
gbMemory[0xff41] = register_STAT &= 0xfc;
gbInt48Signal = 0;
}
}
return;
}
// STAT
case 0x41: {
//register_STAT = (register_STAT & 0x87) |
// (value & 0x7c);
gbMemory[0xff41] = register_STAT = (value & 0xf8) | (register_STAT & 0x07); // fix ?
// GB bug from Devrs FAQ
// proper fix
gbInt48Signal &= ((register_STAT>>3) & 0xF);
if((register_LCDC & 0x80)) {
if ((register_STAT & 0x08) && (gbLcdMode == 0))
{
if (!gbInt48Signal)
{
gbMemory[0xff0f] = register_IF |=2;
}
gbInt48Signal |= 1;
}
if ((register_STAT & 0x10) && (gbLcdMode == 1))
{
if (!gbInt48Signal)
{
gbMemory[0xff0f] = register_IF |=2;
}
gbInt48Signal |= 2;
}
if ((register_STAT & 0x20) && (gbLcdMode == 2))
{
if (!gbInt48Signal)
{
gbMemory[0xff0f] = register_IF |=2;
}
gbInt48Signal |= 4;
}
gbCompareLYToLYC();
gbMemory[0xff0f] = register_IF;
gbMemory[0xff41] = register_STAT;
}
return;
}
// SCY
case 0x42: {
int temp = -1;
if ((gbLcdMode == 3) || (gbLcdModeDelayed == 3))
temp = ((GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS) -
gbLcdLYIncrementTicks);
optimizations from dancinninja
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if (temp >=0){
if (temp < 300){
int i = temp << (gbSpeed ? 1 : 2);
if((i % 2) == 0){ // Divisible by 2
// If it is divisible by 2, it'll go much faster
for (; i < 300; i += 2){
gbSCYLine[i] =
gbSCYLine[i+1] = value;
}
}else{ // Not divisible by 2
for (; i < 300; ++i){
gbSCYLine[i] = value;
}
}
}
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}
else
memset(gbSCYLine, value, sizeof(gbSCYLine));
gbMemory[0xff42] = register_SCY = value;
return;
}
// SCX
case 0x43: {
int temp = -1;
if (gbLcdModeDelayed == 3)
temp = ((GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS) -
gbLcdLYIncrementTicksDelayed);
if (temp >=0)
{
optimizations from dancinninja
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if (temp < 300){
int i = temp << (gbSpeed ? 1 : 2);
if((i % 2) == 0){ // Divisible by 2
// If it is divisible by 2, it'll go much faster
for (; i < 300; i += 2){
gbSCXLine[i] =
gbSCXLine[i+1] = value;
}
}else{ // Not divisible by 2
for (; i < 300; ++i){
gbSCXLine[i] = value;
}
}
}
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}
else
memset(gbSCXLine, value, sizeof(gbSCXLine));
gbMemory[0xff43] = register_SCX = value;
return;
}
// LY
case 0x44: {
// read only
return;
}
// LYC
case 0x45: {
if (register_LYC != value)
{
gbMemory[0xff45] = register_LYC = value;
if(register_LCDC & 0x80) {
gbCompareLYToLYC();
}
}
return;
}
// DMA!
case 0x46: {
optimizations from dancinninja
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int source = value << 8;
gbCopyMemory(0xfe00, source, 0xa0);
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gbMemory[0xff46] = register_DMA = value;
return;
}
// BGP
case 0x47: {
int temp = -1;
gbMemory[0xff47] = value;
if (gbLcdModeDelayed == 3)
temp = ((GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS) -
gbLcdLYIncrementTicksDelayed);
if (temp >=0)
{
optimizations from dancinninja
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if (temp < 300){
int i = temp << (gbSpeed ? 1 : 2);
if((i % 2) == 0){ // Divisible by 2
// If it is divisible by 2, it'll go much faster
for (; i < 300; i += 2){
gbBgpLine[i] =
gbBgpLine[i+1] = value;
}
}else{ // Not divisible by 2
for (; i < 300; ++i){
gbBgpLine[i] = value;
}
}
}
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}
else
memset(gbBgpLine,value,sizeof(gbBgpLine));
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
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gbSetBGPalette(value);
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break;
}
// OBP0
case 0x48: {
int temp = -1;
gbMemory[0xff48] = value;
if (gbLcdModeDelayed == 3)
temp = ((GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS) -
gbLcdLYIncrementTicksDelayed);
if (temp >=0)
{
optimizations from dancinninja
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if (temp < 300){
int i = temp << (gbSpeed ? 1 : 2);
if((i % 2) == 0){ // Divisible by 2
// If it is divisible by 2, it'll go much faster
for (; i < 300; i += 2){
gbObp0Line[i] =
gbObp0Line[i+1] = value;
}
}else{ // Not divisible by 2
for (; i < 300; ++i){
gbObp0Line[i] = value;
}
}
}
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}
else
memset(gbObp0Line,value,sizeof(gbObp0Line));
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
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gbSetObj0Palette(value);
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break;
}
// OBP1
case 0x49: {
int temp = -1;
gbMemory[0xff49] = value;
if (gbLcdModeDelayed == 3)
temp = ((GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS) -
gbLcdLYIncrementTicksDelayed);
if (temp >=0)
{
optimizations from dancinninja
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if (temp < 300){
int i = temp << (gbSpeed ? 1 : 2);
if((i % 2) == 0){ // Divisible by 2
// If it is divisible by 2, it'll go much faster
for (; i < 300; i += 2){
gbObp1Line[i] =
gbObp1Line[i+1] = value;
}
}else{ // Not divisible by 2
for (; i < 300; ++i){
gbObp1Line[i] = value;
}
}
}
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}
else
memset(gbObp1Line,value,sizeof(gbObp1Line));
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
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gbSetObj1Palette(value);
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break;
}
// WY
case 0x4a:
gbMemory[0xff4a] = register_WY = value;
if ((register_LY <= register_WY) && ((gbWindowLine < 0) || (gbWindowLine>=144)))
{
gbWindowLine = -1;
oldRegister_WY = register_WY;
}
return;
// WX
case 0x4b:
gbMemory[0xff4b] = register_WX = value;
return;
// KEY1
case 0x4d: {
if(gbCgbMode) {
gbMemory[0xff4d] = (gbMemory[0xff4d] & 0x80) | (value & 1) | 0x7e;
return;
}
}
break;
// VBK
case 0x4f: {
if(gbCgbMode) {
optimizations from dancinninja
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value &= 1;
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if(value == gbVramBank)
return;
optimizations from dancinninja
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int vramAddress = value << 13; //* 0x2000
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gbMemoryMap[0x08] = &gbVram[vramAddress];
gbMemoryMap[0x09] = &gbVram[vramAddress + 0x1000];
gbVramBank = value;
register_VBK = value;
}
return;
}
break;
// BOOTROM disable register (also gbCgbMode enabler if value & 0x10 ?)
case 0x50 :
{
if (useBios && inBios && !skipBios && (value & 1))
{
gbMemoryMap[0x00] = &gbRom[0x0000];
memcpy ((u8 *)(gbRom+0x100), (u8 *)(gbMemory + 0x100), 0xF00);
inBios = false;
}
}
// HDMA1
case 0x51: {
if(gbCgbMode) {
if(value > 0x7f && value < 0xa0)
value = 0;
gbHdmaSource = (value << 8) | (gbHdmaSource & 0xf0);
register_HDMA1 = value;
return;
}
}
break;
// HDMA2
case 0x52: {
if(gbCgbMode) {
value = value & 0xf0;
gbHdmaSource = (gbHdmaSource & 0xff00) | (value);
register_HDMA2 = value;
return;
}
}
break;
// HDMA3
case 0x53: {
if(gbCgbMode) {
value = value & 0x1f;
gbHdmaDestination = (value << 8) | (gbHdmaDestination & 0xf0);
gbHdmaDestination |= 0x8000;
register_HDMA3 = value;
return;
}
}
break;
// HDMA4
case 0x54: {
if(gbCgbMode) {
value = value & 0xf0;
gbHdmaDestination = (gbHdmaDestination & 0x1f00) | value;
gbHdmaDestination |= 0x8000;
register_HDMA4 = value;
return;
}
}
break;
// HDMA5
case 0x55: {
if(gbCgbMode) {
optimizations from dancinninja
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gbHdmaBytes = 16 + ((value & 0x7f) <<4);
upgrade sound core and GB engine
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if(gbHdmaOn) {
if(value & 0x80) {
gbMemory[0xff55] = register_HDMA5 = (value & 0x7f);
} else {
register_HDMA5 = 0xff;
gbHdmaOn = 0;
}
} else {
if(value & 0x80) {
gbHdmaOn = 1;
gbMemory[0xff55] = register_HDMA5 = value & 0x7f;
if(gbLcdModeDelayed == 0)
gbDoHdma();
} else {
// we need to take the time it takes to complete the transfer into
// account... according to GB DEV FAQs, the setup time is the same
// for single and double speed, but the actual transfer takes the
// same time
optimizations from dancinninja
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if(gbSpeed)
gbDmaTicks = 2 + (((value & 0x7f) + 1) << 4);
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else
optimizations from dancinninja
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gbDmaTicks = 1 + (((value & 0x7f) + 1) << 3);
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gbCopyMemory((gbHdmaDestination & 0x1ff0) | 0x8000,
gbHdmaSource & 0xfff0,
gbHdmaBytes);
gbHdmaDestination += gbHdmaBytes;
gbHdmaSource += gbHdmaBytes;
optimizations from dancinninja
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// Spacial alignemnt
gbMemory[0xff51] =
gbMemory[0xff52] =
gbMemory[0xff53] =
gbMemory[0xff54] =
gbMemory[0xff55] = 0xff;
register_HDMA1 =
register_HDMA2 =
register_HDMA3 =
register_HDMA4 =
register_HDMA5 = 0xff;
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}
}
return;
}
}
break;
// BCPS
case 0x68: {
if(gbCgbMode) {
int paletteIndex = (value & 0x3f) >> 1;
int paletteHiLo = (value & 0x01);
gbMemory[0xff68] = value;
gbMemory[0xff69] = (paletteHiLo ?
(gbPalette[paletteIndex] >> 8) :
(gbPalette[paletteIndex] & 0x00ff));
return;
}
}
break;
// BCPD
case 0x69: {
if(gbCgbMode) {
int v = gbMemory[0xff68];
int paletteIndex = (v & 0x3f) >> 1;
int paletteHiLo = (v & 0x01);
// No access to gbPalette during mode 3 (Color Panel Demo)
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
// CAK - The following check has to be commented out for
// colourised roms like Metroid 2 DX
//if (((gbLcdModeDelayed != 3) && (!((gbLcdMode == 0) && (gbLcdTicks>=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-1)))) && (!gbSpeed)) ||
// (gbSpeed && ((gbLcdMode == 1) || (gbLcdMode == 2) ||
// ((gbLcdMode == 3) && (gbLcdTicks>(GBLCD_MODE_3_CLOCK_TICKS-2))) ||
// ((gbLcdMode == 0) && (gbLcdTicks<=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-2))))))
upgrade sound core and GB engine
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{
gbMemory[0xff69] = value;
gbPalette[paletteIndex] = (paletteHiLo ?
((value << 8) | (gbPalette[paletteIndex] & 0xff)) :
((gbPalette[paletteIndex] & 0xff00) | (value))) & 0x7fff;
}
if(gbMemory[0xff68] & 0x80) {
int index = ((gbMemory[0xff68] & 0x3f) + 1) & 0x3f;
gbMemory[0xff68] = (gbMemory[0xff68] & 0x80) | index;
gbMemory[0xff69] = (index & 1 ?
(gbPalette[index>>1] >> 8) :
(gbPalette[index>>1] & 0x00ff));
}
return;
}
}
break;
// OCPS
case 0x6a: {
if(gbCgbMode) {
int paletteIndex = (value & 0x3f) >> 1;
int paletteHiLo = (value & 0x01);
paletteIndex += 32;
gbMemory[0xff6a] = value;
gbMemory[0xff6b] = (paletteHiLo ?
(gbPalette[paletteIndex] >> 8) :
(gbPalette[paletteIndex] & 0x00ff));
return;
}
}
break;
// OCPD
case 0x6b: {
if(gbCgbMode) {
int v = gbMemory[0xff6a];
int paletteIndex = (v & 0x3f) >> 1;
int paletteHiLo = (v & 0x01);
paletteIndex += 32;
// No access to gbPalette during mode 3 (Color Panel Demo)
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
// CAK - The following check has to be commented out for
// colourised roms like Metroid 2 DX
//if (((gbLcdModeDelayed != 3) && (!((gbLcdMode == 0) && (gbLcdTicks>=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-1)))) && (!gbSpeed)) ||
// (gbSpeed && ((gbLcdMode == 1) || (gbLcdMode == 2) ||
// ((gbLcdMode == 3) && (gbLcdTicks>(GBLCD_MODE_3_CLOCK_TICKS-2))) ||
// ((gbLcdMode == 0) && (gbLcdTicks<=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-2))))))
upgrade sound core and GB engine
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{
gbMemory[0xff6b] = value;
gbPalette[paletteIndex] = (paletteHiLo ?
((value << 8) | (gbPalette[paletteIndex] & 0xff)) :
((gbPalette[paletteIndex] & 0xff00) | (value))) & 0x7fff;
}
if(gbMemory[0xff6a] & 0x80) {
int index = ((gbMemory[0xff6a] & 0x3f) + 1) & 0x3f;
gbMemory[0xff6a] = (gbMemory[0xff6a] & 0x80) | index;
gbMemory[0xff6b] = (index & 1 ?
(gbPalette[(index>>1) + 32] >> 8) :
(gbPalette[(index>>1) + 32] & 0x00ff));
}
return;
}
}
break;
case 0x6c: {
gbMemory[0xff6c] = 0xfe | value;
return;
}
// SVBK
case 0x70: {
if(gbCgbMode) {
value = value & 7;
int bank = value;
if(value == 0)
bank = 1;
if(bank == gbWramBank)
return;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
int wramAddress = bank << 12; //* 0x1000
upgrade sound core and GB engine
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gbMemoryMap[0x0d] = &gbWram[wramAddress];
gbWramBank = bank;
gbMemory[0xff70] = register_SVBK = value;
return;
}
}
case 0x75:{
gbMemory[0xff75] = 0x8f | value;
return;
}
case 0xff: {
gbMemory[0xffff] = register_IE = value;
return;
}
}
if(address < 0xff80)
{
gbMemory[address] = value;
return;
}
gbMemory[address] = value;
}
u8 gbReadOpcode(register u16 address)
{
if(gbCheatMap[address])
return gbCheatRead(address);
if(address < 0x8000)
return gbMemoryMap[address>>12][address&0x0fff];
if(address < 0xa000)
{
// A lot of 'ugly' checks... But only way to emulate this particular behaviour...
if (((gbHardware & 0xa) && ((gbLcdModeDelayed !=3) || ((register_LY == 0) &&
(gbScreenOn==false) && (register_LCDC & 0x80)) &&
(gbLcdLYIncrementTicksDelayed ==(GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS)))) ||
((gbHardware & 0x5) && (gbLcdModeDelayed !=3) &&
((gbLcdMode !=3) || ((register_LY == 0) && ((gbScreenOn==false) &&
(register_LCDC & 0x80)) &&
(gbLcdLYIncrementTicks ==(GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS))))))
return gbMemoryMap[address>>12][address&0x0fff];
return 0xff;
}
// Used for the mirroring of 0xC000 in 0xE000
if ((address >= 0xe000) && (address < 0xfe00))
address &= ~0x2000;
switch(address & 0xf000) {
case 0x0a:
case 0x0b:
if(mapperReadRAM)
return mapperReadRAM(address);
break;
case 0x0f:
if(address > 0xff00) {
switch(address & 0x00ff) {
case 0x02:
return (gbMemory[0xff02]);
case 0x03:
return (0xff);
case 0x04:
return register_DIV;
case 0x05:
return register_TIMA;
case 0x06:
return register_TMA;
case 0x07:
return (0xf8 | register_TAC);
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
return (0xff);
case 0x0f:
return (0xe0 | gbMemory[0xff0f]);
case 0x40:
return register_LCDC;
case 0x41:
// This is a GB/C only bug (ie. not GBA/SP).
if ((gbHardware & 7) && (gbLcdMode == 2) && (gbLcdModeDelayed == 1) && (!gbSpeed))
return (0x80 | gbMemory[0xff41] & 0xFC);
else
return (0x80 | gbMemory[0xff41]);
case 0x42:
return register_SCY;
case 0x43:
return register_SCX;
case 0x44:
if (((gbHardware & 7) && ((gbLcdMode == 1) && (gbLcdTicks == 0x71))) ||
(!(register_LCDC && 0x80)))
return 0;
else
return register_LY;
case 0x45:
return register_LYC;
case 0x46:
return register_DMA;
case 0x4a:
return register_WY;
case 0x4b:
return register_WX;
case 0x4c:
return 0xff;
case 0x4f:
return (0xfe | register_VBK);
case 0x51:
return register_HDMA1;
case 0x52:
return register_HDMA2;
case 0x53:
return register_HDMA3;
case 0x54:
return register_HDMA4;
case 0x55:
return register_HDMA5;
case 0x68:
case 0x6a:
if (gbCgbMode)
return (0x40 | gbMemory[address]);
else
return 0xc0;
case 0x69:
case 0x6b:
if (gbCgbMode)
{
// No access to gbPalette during mode 3 (Color Panel Demo)
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
//if (((gbLcdModeDelayed != 3) && (!((gbLcdMode == 0) && (gbLcdTicks>=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-1)))) && (!gbSpeed)) ||
// (gbSpeed && ((gbLcdMode == 1) || (gbLcdMode == 2) ||
// ((gbLcdMode == 3) && (gbLcdTicks>(GBLCD_MODE_3_CLOCK_TICKS-2))) ||
// ((gbLcdMode == 0) && (gbLcdTicks<=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-2))))))
upgrade sound core and GB engine
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return (gbMemory[address]);
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
//else
// return 0xff;
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}
else
return 0xff;
case 0x70:
if (gbCgbMode)
return (0xf8 | register_SVBK);
else
return 0xff;
case 0xff:
return register_IE;
}
}
// OAM not accessible during mode 2 & 3.
if(((address >= 0xfe00) && (address<0xfea0)) &&
((gbLcdMode | gbLcdModeDelayed) &2))
return 0xff;
break;
}
if ((address >= 0xfea0) && (address < 0xff00))
{
if (gbHardware & 1)
return ((((address + ((address >> 4) - 0xfea)) >> 2) & 1) ? 0x00 : 0xff );
else if (gbHardware & 2)
return gbMemoryMap[address>>12][address & 0x0fff];
else if (gbHardware & 4)
return ((((address + ((address >> 4) - 0xfea)) >> 2) & 1) ? 0xff : 0x00 );
else if (gbHardware & 8)
return ((address & 0xf0) |((address & 0xf0)>>4));
}
return gbMemoryMap[address>>12][address & 0x0fff];
}
u8 gbReadMemory(register u16 address)
{
if(gbCheatMap[address])
return gbCheatRead(address);
if(address < 0x8000)
return gbMemoryMap[address>>12][address&0x0fff];
if(address < 0xa000)
{
// A lot of 'ugly' checks... But only way to emulate this particular behaviour...
if (((gbHardware & 0xa) && ((gbLcdModeDelayed !=3) || ((register_LY == 0) &&
(gbScreenOn==false) && (register_LCDC & 0x80)) &&
(gbLcdLYIncrementTicksDelayed ==(GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS)))) ||
((gbHardware & 0x5) && (gbLcdModeDelayed !=3) &&
((gbLcdMode !=3) || ((register_LY == 0) && ((gbScreenOn==false) &&
(register_LCDC & 0x80)) &&
(gbLcdLYIncrementTicks ==(GBLY_INCREMENT_CLOCK_TICKS-GBLCD_MODE_2_CLOCK_TICKS))))))
return gbMemoryMap[address>>12][address&0x0fff];
return 0xff;
}
if ((address >= 0xe000) && (address < 0xfe00))
address &= ~0x2000;
if(address < 0xc000) {
#ifndef FINAL_VERSION
if(memorydebug) {
log("Memory register read %04x PC=%04x\n",
address,
PC.W);
}
#endif
// for the 2kb ram limit (fixes crash in shawu's story
// but now its sram test fails, as the it expects 8kb and not 2kb...
// So use the 'genericflashcard' option to fix it).
if (address<=(0xa000+gbRamSizeMask))
{
if(mapperReadRAM)
return mapperReadRAM(address);
return gbMemoryMap[address>>12][address & 0x0fff];
}
return 0xff;
}
if(address >= 0xff00) {
if ( address >= 0xFF10 && address <= 0xFF3F )
return gbSoundRead( address );
switch(address & 0x00ff) {
case 0x00:
{
if(gbSgbMode) {
gbSgbReadingController |= 4;
gbSgbResetPacketState();
}
int b = gbMemory[0xff00];
if((b & 0x30) == 0x20) {
b &= 0xf0;
int joy = 0;
if(gbSgbMode && gbSgbMultiplayer) {
switch(gbSgbNextController) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
case 0x0f:
default:
break;
case 0x0e:
joy = 1;
break;
case 0x0d:
joy = 2;
break;
case 0x0c:
joy = 3;
break;
upgrade sound core and GB engine
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}
}
int joystate = gbJoymask[joy];
if(!(joystate & 128))
b |= 0x08;
if(!(joystate & 64))
b |= 0x04;
if(!(joystate & 32))
b |= 0x02;
if(!(joystate & 16))
b |= 0x01;
gbMemory[0xff00] = b;
} else if((b & 0x30) == 0x10) {
b &= 0xf0;
int joy = 0;
if(gbSgbMode && gbSgbMultiplayer) {
switch(gbSgbNextController) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
case 0x0f:
default:
break;
case 0x0e:
joy = 1;
break;
case 0x0d:
joy = 2;
break;
case 0x0c:
joy = 3;
break;
upgrade sound core and GB engine
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}
}
int joystate = gbJoymask[joy];
if(!(joystate & 8))
b |= 0x08;
if(!(joystate & 4))
b |= 0x04;
if(!(joystate & 2))
b |= 0x02;
if(!(joystate & 1))
b |= 0x01;
gbMemory[0xff00] = b;
} else {
if(gbSgbMode && gbSgbMultiplayer) {
gbMemory[0xff00] = 0xf0 | gbSgbNextController;
} else {
gbMemory[0xff00] = 0xff;
}
}
}
return gbMemory[0xff00];
break;
case 0x01:
return gbMemory[0xff01];
case 0x02:
return (gbMemory[0xff02]);
case 0x04:
return register_DIV;
case 0x05:
return register_TIMA;
case 0x06:
return register_TMA;
case 0x07:
return (0xf8 | register_TAC);
case 0x0f:
return (0xe0 | gbMemory[0xff0f]);
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
case 0x3A:
case 0x3B:
case 0x3C:
case 0x3D:
case 0x3E:
case 0x3F:
if ((gbMemory[NR30] & 0x80) && (gbMemory[NR34] & 0x80))
return 0xFF;
else
return gbMemoryMap[address>>12][address & 0x0fff];
case 0x40:
return register_LCDC;
case 0x41:
// This is a GB/C only bug (ie. not GBA/SP).
if ((gbHardware & 7) && (gbLcdMode == 2) && (gbLcdModeDelayed == 1) && (!gbSpeed))
return (0x80 | gbMemory[0xff41] & 0xFC);
else
return (0x80 | gbMemory[0xff41]);
case 0x42:
return register_SCY;
case 0x43:
return register_SCX;
case 0x44:
if (((gbHardware & 7) && ((gbLcdMode == 1) && (gbLcdTicks == 0x71))) ||
(!(register_LCDC && 0x80)))
return (0);
else
return register_LY;
case 0x45:
return register_LYC;
case 0x46:
return register_DMA;
case 0x4a:
return register_WY;
case 0x4b:
return register_WX;
case 0x4f:
return (0xfe | register_VBK);
case 0x51:
return register_HDMA1;
case 0x52:
return register_HDMA2;
case 0x53:
return register_HDMA3;
case 0x54:
return register_HDMA4;
case 0x55:
return register_HDMA5;
case 0x68:
case 0x6a:
if (gbCgbMode)
return (0x40 | gbMemory[address]);
else
return 0xc0;
case 0x69:
case 0x6b:
if (gbCgbMode)
{
// No access to gbPalette during mode 3 (Color Panel Demo)
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
//if (((gbLcdModeDelayed != 3) && (!((gbLcdMode == 0) && (gbLcdTicks>=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-1)))) && (!gbSpeed)) ||
// (gbSpeed && ((gbLcdMode == 1) || (gbLcdMode == 2) ||
// ((gbLcdMode == 3) && (gbLcdTicks>(GBLCD_MODE_3_CLOCK_TICKS-2))) ||
// ((gbLcdMode == 0) && (gbLcdTicks<=(GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299]-2))))))
upgrade sound core and GB engine
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return (gbMemory[address]);
Fix for issue 70, http://code.google.com/p/vba-wii/issues/detail?id=70 Colorised games should now work. This patch hasn't been fully tested. It is based on a few differences between releases r60 and r61 that broke colorised game support, along with much trial and error.
2009-03-11 23:34:22 +01:00
//else
// return 0xff;
upgrade sound core and GB engine
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}
else
return 0xff;
case 0x70:
if (gbCgbMode)
return (0xf8 | register_SVBK);
else
return 0xff;
case 0xff:
return register_IE;
}
}
// OAM not accessible during mode 2 & 3.
if(((address >= 0xfe00) && (address<0xfea0)) &&
(((gbLcdMode | gbLcdModeDelayed) &2) &&
(!(gbSpeed && (gbHardware & 0x2) && !(gbLcdModeDelayed & 2) && (gbLcdMode == 2))) ||
(gbSpeed && (gbHardware & 0x2) && (gbLcdModeDelayed == 0) && (gbLcdTicksDelayed == (GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299])))))
return 0xff;
if ((address >= 0xfea0) && (address < 0xff00))
{
if (gbHardware & 1)
return ((((address + ((address >> 4) - 0xfea)) >> 2) & 1) ? 0x00 : 0xff );
else if (gbHardware & 2)
return gbMemoryMap[address>>12][address & 0x0fff];
else if (gbHardware & 4)
return ((((address + ((address >> 4) - 0xfea)) >> 2) & 1) ? 0xff : 0x00 );
else if (gbHardware & 8)
return ((address & 0xf0) |((address & 0xf0)>>4));
}
return gbMemoryMap[address>>12][address & 0x0fff];
}
void gbVblank_interrupt()
{
gbCheatWrite(false); // Emulates GS codes.
gbMemory[0xff0f] = register_IF &= 0xfe;
gbWriteMemory(--SP.W, PC.B.B1);
gbWriteMemory(--SP.W, PC.B.B0);
PC.W = 0x40;
}
void gbLcd_interrupt()
{
gbMemory[0xff0f] = register_IF &= 0xfd;
gbWriteMemory(--SP.W, PC.B.B1);
gbWriteMemory(--SP.W, PC.B.B0);
PC.W = 0x48;
}
void gbTimer_interrupt()
{
gbMemory[0xff0f] = register_IF &= 0xfb;
gbWriteMemory(--SP.W, PC.B.B1);
gbWriteMemory(--SP.W, PC.B.B0);
PC.W = 0x50;
}
void gbSerial_interrupt()
{
gbMemory[0xff0f] = register_IF &= 0xf7;
gbWriteMemory(--SP.W, PC.B.B1);
gbWriteMemory(--SP.W, PC.B.B0);
PC.W = 0x58;
}
void gbJoypad_interrupt()
{
gbMemory[0xff0f] = register_IF &= 0xef;
gbWriteMemory(--SP.W, PC.B.B1);
gbWriteMemory(--SP.W, PC.B.B0);
PC.W = 0x60;
}
void gbSpeedSwitch()
{
gbBlackScreen = true;
if(gbSpeed == 0) {
gbSpeed = 1;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
GBLCD_MODE_0_CLOCK_TICKS = 51 << 1;
GBLCD_MODE_1_CLOCK_TICKS = 1140 << 1;
GBLCD_MODE_2_CLOCK_TICKS = 20 << 1;
GBLCD_MODE_3_CLOCK_TICKS = 43 << 1;
GBLY_INCREMENT_CLOCK_TICKS = 114 << 1;
upgrade sound core and GB engine
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GBDIV_CLOCK_TICKS = 64;
GBTIMER_MODE_0_CLOCK_TICKS = 256;
GBTIMER_MODE_1_CLOCK_TICKS = 4;
GBTIMER_MODE_2_CLOCK_TICKS = 16;
GBTIMER_MODE_3_CLOCK_TICKS = 64;
optimizations from dancinninja
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GBSERIAL_CLOCK_TICKS = 128 << 1;
gbLcdTicks <<= 1;
gbLcdTicksDelayed <<= 1;
--gbLcdTicksDelayed;
gbLcdLYIncrementTicks <<= 1;
gbLcdLYIncrementTicksDelayed <<= 1;
--gbLcdLYIncrementTicksDelayed;
gbSerialTicks <<= 1;
upgrade sound core and GB engine
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//SOUND_CLOCK_TICKS = soundQuality * 24 * 2;
//soundTicks *= 2;
gbLine99Ticks = 3;
} else {
gbSpeed = 0;
GBLCD_MODE_0_CLOCK_TICKS = 51;
GBLCD_MODE_1_CLOCK_TICKS = 1140;
GBLCD_MODE_2_CLOCK_TICKS = 20;
GBLCD_MODE_3_CLOCK_TICKS = 43;
GBLY_INCREMENT_CLOCK_TICKS = 114;
GBDIV_CLOCK_TICKS = 64;
GBTIMER_MODE_0_CLOCK_TICKS = 256;
GBTIMER_MODE_1_CLOCK_TICKS = 4;
GBTIMER_MODE_2_CLOCK_TICKS = 16;
GBTIMER_MODE_3_CLOCK_TICKS = 64;
GBSERIAL_CLOCK_TICKS = 128;
gbLcdTicks >>= 1;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbLcdTicksDelayed;
upgrade sound core and GB engine
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gbLcdTicksDelayed >>=1;
gbLcdLYIncrementTicks >>= 1;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbLcdLYIncrementTicksDelayed;
upgrade sound core and GB engine
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gbLcdLYIncrementTicksDelayed >>= 1;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
gbSerialTicks >>= 1;
upgrade sound core and GB engine
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//SOUND_CLOCK_TICKS = soundQuality * 24;
//soundTicks /= 2;
gbLine99Ticks = 1;
if (gbHardware & 8)
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbLine99Ticks;
upgrade sound core and GB engine
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}
gbDmaTicks += (134)*GBLY_INCREMENT_CLOCK_TICKS + (37<<(gbSpeed ? 1 : 0));
}
bool CPUIsGBBios(const char * file)
{
if(strlen(file) > 4) {
const char * p = strrchr(file,'.');
if(p != NULL) {
if(_stricmp(p, ".gb") == 0)
return true;
if(_stricmp(p, ".bin") == 0)
return true;
if(_stricmp(p, ".bios") == 0)
return true;
if(_stricmp(p, ".rom") == 0)
return true;
}
}
return false;
}
void gbCPUInit(const char *biosFileName, bool useBiosFile)
{
useBios = false;
if (useBiosFile)
{
remove unneeded functions
2009-01-24 23:05:28 +01:00
/* int size = 0x100;
upgrade sound core and GB engine
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if(utilLoad(biosFileName,
CPUIsGBBios,
bios,
size)) {
if(size == 0x100)
useBios = true;
else
systemMessage(MSG_INVALID_BIOS_FILE_SIZE, N_("Invalid BOOTROM file size"));
remove unneeded functions
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}*/
upgrade sound core and GB engine
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}
}
void gbGetHardwareType()
{
gbCgbMode = 0;
gbSgbMode = 0;
if(gbRom[0x143] & 0x80) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
if((1<<gbEmulatorType) & ((1<<0)|(1<<1)|(1<<4))){
upgrade sound core and GB engine
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gbCgbMode = 1;
}
}
if((gbCgbMode == 0 ) && (gbRom[0x146] == 0x03)) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
if((1<<gbEmulatorType) & ((1<<0)|(1<<2)|(1<<5))){
upgrade sound core and GB engine
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gbSgbMode = 1;
optimizations from dancinninja
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}
upgrade sound core and GB engine
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}
gbHardware = 1; // GB
if (((gbCgbMode == 1) && (gbEmulatorType == 0)) || (gbEmulatorType == 1))
gbHardware = 2; // GBC
else if (((gbSgbMode == 1) && (gbEmulatorType == 0)) || (gbEmulatorType == 2) || (gbEmulatorType == 5))
gbHardware = 4; // SGB(2)
else if (gbEmulatorType == 4)
gbHardware = 8; // GBA
gbGBCColorType = 0;
if (gbHardware & 8) // If GBA is selected, choose the GBA default settings.
gbGBCColorType = 2; // (0 = GBC, 1 = GBA, 2 = GBASP)
}
void gbReset()
{
Rumble for all GBC rumble games and Drill Dozer. Rumble should work on Gamecube controller too. The following games have native rumble support: WarioWare Twisted, Drill Dozer, 10 Pin Bowling, 3-D Ultra Pinball Thrillride, Disney's The Little Mermaid II: Pinball Frenzy, Hole in One Golf, Missile Command, NASCAR Challenge, Perfect Dark, Pokémon Pinball, Polaris SnoCross, Ready 2 Rumble Boxing, Star Wars Episode I: Racer, Test Drive Off-Road 3, Tonka Raceway, Top Gear Pocket\Top Gear Rally, Vigilante 8, Zebco Fishing, and maybe some other games. Also, rumble and wii-control code has been cleaned up a bit.
2009-03-20 21:22:22 +01:00
systemCartridgeRumble(false);
upgrade sound core and GB engine
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gbGetHardwareType();
GB Palette editing (saving doesn't work yet). More built-in palettes. Palettes now fade to white correctly instead of getting brighter. Star Wars, TMNT, Lord Of The Rings, Wii Controls. Some (disabled) logging functions.
2009-05-27 19:31:18 +02:00
gbPaletteReset();
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oldRegister_WY = 146;
gbInterruptLaunched = 0;
if(gbCgbMode == 1) {
if (gbVram == NULL)
gbVram = (u8 *)malloc(0x4000);
if (gbWram == NULL)
gbWram = (u8 *)malloc(0x8000);
memset(gbVram,0,0x4000);
memset(gbPalette,0, 2*128);
}
else
{
if(gbVram != NULL) {
free(gbVram);
gbVram = NULL;
}
if(gbWram != NULL) {
free(gbWram);
gbWram = NULL;
}
}
gbLYChangeHappened = false;
gbLCDChangeHappened = false;
gbBlackScreen = false;
gbInterruptWait = 0;
gbDmaTicks = 0;
clockTicks = 0;
if(gbSpeed) {
gbSpeedSwitch();
gbMemory[0xff4d] = 0;
}
// clean Wram
// This kinda emulates the startup state of Wram on GB/C (not very accurate,
// but way closer to the reality than filling it with 00es or FFes).
// On GBA/GBASP, it's kinda filled with random data.
// In all cases, most of the 2nd bank is filled with 00s.
// The starting data are important for some 'buggy' games, like Buster Brothers or
// Karamuchou ha Oosawagi!.
if (gbMemory != NULL)
{
memset(gbMemory,0xff, 65536);
for (int temp = 0xC000; temp < 0xE000; temp++)
if ((temp & 0x8) ^((temp & 0x800)>>8))
{
if ((gbHardware & 0x02) && (gbGBCColorType == 0))
gbMemory[temp] = 0x0;
else
gbMemory[temp] = 0x0f;
}
else
gbMemory[temp] = 0xff;
}
// GB bios set this memory area to 0
// Fixes Pitman (J) title screen
if (gbHardware & 0x1) {
memset(&gbMemory[0x8000], 0x0, 0x2000);
}
// clean LineBuffer
if (gbLineBuffer != NULL)
memset(gbLineBuffer, 0, sizeof(gbLineBuffer));
// clean Pix
if (pix != NULL)
memset(pix, 0, sizeof(pix));
// clean Vram
if (gbVram != NULL)
memset(gbVram, 0, 0x4000);
// clean Wram 2
// This kinda emulates the startup state of Wram on GBC (not very accurate,
// but way closer to the reality than filling it with 00es or FFes).
// On GBA/GBASP, it's kinda filled with random data.
// In all cases, most of the 2nd bank is filled with 00s.
// The starting data are important for some 'buggy' games, like Buster Brothers or
// Karamuchou ha Oosawagi!
if (gbWram != NULL)
{
for (int i = 0; i<8; i++)
if (i != 2)
memcpy ((u16 *)(gbWram+i*0x1000), (u16 *)(gbMemory+0xC000), 0x1000);
}
memset(gbSCYLine,0,sizeof(gbSCYLine));
memset(gbSCXLine,0,sizeof(gbSCXLine));
memset(gbBgpLine,0xfc,sizeof(gbBgpLine));
if (gbHardware & 5)
{
memset(gbObp0Line,0xff,sizeof(gbObp0Line));
memset(gbObp1Line,0xff,sizeof(gbObp1Line));
}
else
{
memset(gbObp0Line,0x0,sizeof(gbObp0Line));
memset(gbObp1Line,0x0,sizeof(gbObp1Line));
}
memset(gbSpritesTicks,0x0,sizeof(gbSpritesTicks));
SP.W = 0xfffe;
AF.W = 0x01b0;
BC.W = 0x0013;
DE.W = 0x00d8;
HL.W = 0x014d;
PC.W = 0x0100;
IFF = 0;
gbInt48Signal = 0;
register_TIMA = 0;
register_TMA = 0;
register_TAC = 0;
gbMemory[0xff0f] = register_IF = 1;
gbMemory[0xff40] = register_LCDC = 0x91;
gbMemory[0xff47] = 0xfc;
if (gbCgbMode)
gbMemory[0xff4d] = 0x7e;
else
gbMemory[0xff4d] = 0xff;
if (!gbCgbMode)
gbMemory[0xff70] = gbMemory[0xff74] = 0xff;
if (gbCgbMode)
gbMemory[0xff56] = 0x3e;
else
gbMemory[0xff56] = 0xff;
register_SCY = 0;
register_SCX = 0;
register_LYC = 0;
register_DMA = 0xff;
register_WY = 0;
register_WX = 0;
register_VBK = 0;
register_HDMA1 = 0xff;
register_HDMA2 = 0xff;
register_HDMA3 = 0xff;
register_HDMA4 = 0xff;
register_HDMA5 = 0xff;
register_SVBK = 0;
register_IE = 0;
if (gbCgbMode)
gbMemory[0xff02] = 0x7c;
else
gbMemory[0xff02] = 0x7e;
gbMemory[0xff03] = 0xff;
int i;
for (i = 0x8; i<0xf; i++)
gbMemory[0xff00+i] = 0xff;
gbMemory[0xff13] = 0xff;
gbMemory[0xff15] = 0xff;
gbMemory[0xff18] = 0xff;
gbMemory[0xff1d] = 0xff;
gbMemory[0xff1f] = 0xff;
for (i = 0x27; i<0x30; i++)
gbMemory[0xff00+i] = 0xff;
gbMemory[0xff4c] = 0xff;
gbMemory[0xff4e] = 0xff;
gbMemory[0xff50] = 0xff;
for (i = 0x57; i<0x68; i++)
gbMemory[0xff00+i] = 0xff;
for (i = 0x5d; i<0x70; i++)
gbMemory[0xff00+i] = 0xff;
gbMemory[0xff71] = 0xff;
for (i = 0x78; i<0x80; i++)
gbMemory[0xff00+i] = 0xff;
if (gbHardware & 0xa)
{
if (gbHardware & 2)
{
AF.W = 0x1180;
BC.W = 0x0000;
}
else
{
AF.W = 0x1100;
BC.W = 0x0100; // GBA/SP have B = 0x01 (which means GBC & GBA/SP bootrom are different !)
}
gbMemory[0xff26] = 0xf1;
if (gbCgbMode)
{
gbMemory[0xff31] = 0xff;
gbMemory[0xff33] = 0xff;
gbMemory[0xff35] = 0xff;
gbMemory[0xff37] = 0xff;
gbMemory[0xff39] = 0xff;
gbMemory[0xff3b] = 0xff;
gbMemory[0xff3d] = 0xff;
gbMemory[0xff44] = register_LY = 0x90;
gbDivTicks = 0x19 + ((gbHardware & 2) >> 1);
gbInternalTimer = 0x58 + ((gbHardware & 2) >> 1);
gbLcdTicks = GBLCD_MODE_1_CLOCK_TICKS -
(register_LY-0x8F)*GBLY_INCREMENT_CLOCK_TICKS + 72 + ((gbHardware & 2) >> 1);
gbLcdLYIncrementTicks = 72 + ((gbHardware & 2) >> 1);
gbMemory[0xff04] = register_DIV = 0x1E;
}
else
{
gbMemory[0xff44] = register_LY = 0x94;
gbDivTicks = 0x22 + ((gbHardware & 2) >> 1);
gbInternalTimer = 0x61 + ((gbHardware & 2) >> 1);
gbLcdTicks = GBLCD_MODE_1_CLOCK_TICKS -
(register_LY-0x8F)*GBLY_INCREMENT_CLOCK_TICKS + 25 + ((gbHardware & 2) >> 1);
gbLcdLYIncrementTicks = 25 + ((gbHardware & 2) >> 1);
gbMemory[0xff04] = register_DIV = 0x26;
}
DE.W = 0xff56;
HL.W = 0x000d;
register_HDMA5 = 0xff;
gbMemory[0xff68] = 0xc0;
gbMemory[0xff6a] = 0xc0;
gbMemory[0xff41] = register_STAT = 0x81;
gbLcdMode = 1;
}
else
{
if (gbHardware & 4)
{
if(gbEmulatorType == 5)
AF.W = 0xffb0;
else
AF.W = 0x01b0;
BC.W = 0x0013;
DE.W = 0x00d8;
HL.W = 0x014d;
}
gbDivTicks = 14;
gbInternalTimer = gbDivTicks--;
gbMemory[0xff04] = register_DIV = 0xAB;
gbMemory[0xff41] = register_STAT = 0x85;
gbMemory[0xff44] = register_LY = 0x00;
gbLcdTicks = 15;
gbLcdLYIncrementTicks = 114+gbLcdTicks;
gbLcdMode = 1;
// used for the handling of the gb Boot Rom
if ((gbHardware & 5) && (bios != NULL) && useBios && !skipBios)
{
memcpy ((u8 *)(gbMemory), (u8 *)(gbRom), 0x1000);
memcpy ((u8 *)(gbMemory), (u8 *)(bios), 0x100);
gbWhiteScreen = 0;
gbInternalTimer = 0x3e;
gbDivTicks = 0x3f;
gbMemory[0xff04] = register_DIV = 0x00;
PC.W = 0x0000;
register_LCDC = 0x11;
gbScreenOn = false;
gbLcdTicks = 0;
gbLcdMode = 0;
gbLcdModeDelayed = 0;
gbMemory[0xff41] = register_STAT &= 0xfc;
gbInt48Signal = 0;
gbLcdLYIncrementTicks = GBLY_INCREMENT_CLOCK_TICKS;
}
}
gbLine99Ticks = 1;
if (gbHardware & 8)
gbLine99Ticks++;
gbLcdModeDelayed = gbLcdMode;
gbLcdTicksDelayed = gbLcdTicks+1;
gbLcdLYIncrementTicksDelayed = gbLcdLYIncrementTicks+1;
gbTimerModeChange = false;
gbTimerOnChange = false;
gbTimerOn = false;
if(gbCgbMode) {
for (int i = 0; i<0x20; i++)
gbPalette[i] = 0x7fff;
// This is just to show that the starting values of the OBJ palettes are different
// between the 3 consoles, and that they 'kinda' stay the same at each reset
// (they can slightly change, somehow (randomly?)).
// You can check the effects of gbGBCColorType on the "Vila Caldan Color" gbc demo.
// Note that you could also check the Div register to check on which system the game
// is running (GB,GBC and GBA(SP) have different startup values).
// Unfortunatly, I don't have any SGB system, so I can't get their starting values.
if (gbGBCColorType == 0) // GBC Hardware
{
gbPalette[0x20] = 0x0600;
gbPalette[0x21] = 0xfdf3;
gbPalette[0x22] = 0x041c;
gbPalette[0x23] = 0xf5db;
gbPalette[0x24] = 0x4419;
gbPalette[0x25] = 0x57ea;
gbPalette[0x26] = 0x2808;
gbPalette[0x27] = 0x9b75;
gbPalette[0x28] = 0x129b;
gbPalette[0x29] = 0xfce0;
gbPalette[0x2a] = 0x22da;
gbPalette[0x2b] = 0x4ac5;
gbPalette[0x2c] = 0x2d71;
gbPalette[0x2d] = 0xf0c2;
gbPalette[0x2e] = 0x5137;
gbPalette[0x2f] = 0x2d41;
gbPalette[0x30] = 0x6b2d;
gbPalette[0x31] = 0x2215;
gbPalette[0x32] = 0xbe0a;
gbPalette[0x33] = 0xc053;
gbPalette[0x34] = 0xfe5f;
gbPalette[0x35] = 0xe000;
gbPalette[0x36] = 0xbe10;
gbPalette[0x37] = 0x914d;
gbPalette[0x38] = 0x7f91;
gbPalette[0x39] = 0x02b5;
gbPalette[0x3a] = 0x77ac;
gbPalette[0x3b] = 0x14e5;
gbPalette[0x3c] = 0xcf89;
gbPalette[0x3d] = 0xa03d;
gbPalette[0x3e] = 0xfd50;
gbPalette[0x3f] = 0x91ff;
}
else if (gbGBCColorType == 1) // GBA Hardware
{
gbPalette[0x20] = 0xbe00;
gbPalette[0x21] = 0xfdfd;
gbPalette[0x22] = 0xbd69;
gbPalette[0x23] = 0x7baf;
gbPalette[0x24] = 0xf5ff;
gbPalette[0x25] = 0x3f8f;
gbPalette[0x26] = 0xcee5;
gbPalette[0x27] = 0x5bf7;
gbPalette[0x28] = 0xb35b;
gbPalette[0x29] = 0xef97;
gbPalette[0x2a] = 0xef9f;
gbPalette[0x2b] = 0x97f7;
gbPalette[0x2c] = 0x82bf;
gbPalette[0x2d] = 0x9f3d;
gbPalette[0x2e] = 0xddde;
gbPalette[0x2f] = 0xbad5;
gbPalette[0x30] = 0x3cba;
gbPalette[0x31] = 0xdfd7;
gbPalette[0x32] = 0xedea;
gbPalette[0x33] = 0xfeda;
gbPalette[0x34] = 0xf7f9;
gbPalette[0x35] = 0xfdee;
gbPalette[0x36] = 0x6d2f;
gbPalette[0x37] = 0xf0e6;
gbPalette[0x38] = 0xf7f0;
gbPalette[0x39] = 0xf296;
gbPalette[0x3a] = 0x3bf1;
gbPalette[0x3b] = 0xe211;
gbPalette[0x3c] = 0x69ba;
gbPalette[0x3d] = 0x3d0d;
gbPalette[0x3e] = 0xdfd3;
gbPalette[0x3f] = 0xa6ba;
}
else if (gbGBCColorType == 2) // GBASP Hardware
{
gbPalette[0x20] = 0x9c00;
gbPalette[0x21] = 0x6340;
gbPalette[0x22] = 0x10c6;
gbPalette[0x23] = 0xdb97;
gbPalette[0x24] = 0x7622;
gbPalette[0x25] = 0x3e57;
gbPalette[0x26] = 0x2e12;
gbPalette[0x27] = 0x95c3;
gbPalette[0x28] = 0x1095;
gbPalette[0x29] = 0x488c;
gbPalette[0x2a] = 0x8241;
gbPalette[0x2b] = 0xde8c;
gbPalette[0x2c] = 0xfabc;
gbPalette[0x2d] = 0x0e81;
gbPalette[0x2e] = 0x7675;
gbPalette[0x2f] = 0xfdec;
gbPalette[0x30] = 0xddfd;
gbPalette[0x31] = 0x5995;
gbPalette[0x32] = 0x066a;
gbPalette[0x33] = 0xed1e;
gbPalette[0x34] = 0x1e84;
gbPalette[0x35] = 0x1d14;
gbPalette[0x36] = 0x11c3;
gbPalette[0x37] = 0x2749;
gbPalette[0x38] = 0xa727;
gbPalette[0x39] = 0x6266;
gbPalette[0x3a] = 0xe27b;
gbPalette[0x3b] = 0xe3fc;
gbPalette[0x3c] = 0x1f76;
gbPalette[0x3d] = 0xf158;
gbPalette[0x3e] = 0x468e;
gbPalette[0x3f] = 0xa540;
}
} else {
if(gbSgbMode) {
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
2009-04-26 02:05:49 +02:00
for(int i = 0; i < 12; i++)
gbPalette[i] = systemGbPalette[gbPaletteOption*12+i];
upgrade sound core and GB engine
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}
Built-in palette support for monochrome gameboy games. Marble Madness, Malibu Beach Volleyball, Metroid 2, Mortal Kombat 1, 2, and 3, Mr Do. etc. MK3 even changes palettes depending on what character you choose.
2009-04-26 02:05:49 +02:00
for(int i = 0; i < 12; i++)
gbPalette[i] = systemGbPalette[gbPaletteOption*12+i];
upgrade sound core and GB engine
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}
GBTIMER_MODE_0_CLOCK_TICKS = 256;
GBTIMER_MODE_1_CLOCK_TICKS = 4;
GBTIMER_MODE_2_CLOCK_TICKS = 16;
GBTIMER_MODE_3_CLOCK_TICKS = 64;
GBLY_INCREMENT_CLOCK_TICKS = 114;
gbTimerTicks = GBTIMER_MODE_0_CLOCK_TICKS;
gbTimerClockTicks = GBTIMER_MODE_0_CLOCK_TICKS;
gbSerialTicks = 0;
gbSerialBits = 0;
gbSerialOn = 0;
gbWindowLine = -1;
gbTimerOn = false;
gbTimerMode = 0;
gbSpeed = 0;
gbJoymask[0] = gbJoymask[1] = gbJoymask[2] = gbJoymask[3] = 0;
if(gbCgbMode) {
gbSpeed = 0;
gbHdmaOn = 0;
gbHdmaSource = 0x99d0;
gbHdmaDestination = 0x99d0;
gbVramBank = 0;
gbWramBank = 1;
}
// used to clean the borders
if (gbSgbMode)
{
gbSgbResetFlag = true;
gbSgbReset();
if (gbBorderOn)
gbSgbRenderBorder();
gbSgbResetFlag = false;
}
for(i = 0; i < 4; i++)
gbBgp[i] = gbObp0[i] = gbObp1[i] = i;
memset(&gbDataMBC1,0, sizeof(gbDataMBC1));
gbDataMBC1.mapperROMBank = 1;
gbDataMBC2.mapperRAMEnable = 0;
gbDataMBC2.mapperROMBank = 1;
memset(&gbDataMBC3,0, 6 * sizeof(int));
gbDataMBC3.mapperROMBank = 1;
memset(&gbDataMBC5, 0, sizeof(gbDataMBC5));
gbDataMBC5.mapperROMBank = 1;
Rumble for all GBC rumble games and Drill Dozer. Rumble should work on Gamecube controller too. The following games have native rumble support: WarioWare Twisted, Drill Dozer, 10 Pin Bowling, 3-D Ultra Pinball Thrillride, Disney's The Little Mermaid II: Pinball Frenzy, Hole in One Golf, Missile Command, NASCAR Challenge, Perfect Dark, Pokémon Pinball, Polaris SnoCross, Ready 2 Rumble Boxing, Star Wars Episode I: Racer, Test Drive Off-Road 3, Tonka Raceway, Top Gear Pocket\Top Gear Rally, Vigilante 8, Zebco Fishing, and maybe some other games. Also, rumble and wii-control code has been cleaned up a bit.
2009-03-20 21:22:22 +01:00
if (gbRomType >= 0x1c && gbRomType<=0x1e)
gbDataMBC5.isRumbleCartridge = 1;
upgrade sound core and GB engine
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memset(&gbDataHuC1, 0, sizeof(gbDataHuC1));
gbDataHuC1.mapperROMBank = 1;
memset(&gbDataHuC3, 0, sizeof(gbDataHuC3));
gbDataHuC3.mapperROMBank = 1;
memset(&gbDataTAMA5,0, 26*sizeof(int));
gbDataTAMA5.mapperROMBank = 1;
memset(&gbDataMMM01,0, sizeof(gbDataMMM01));
gbDataMMM01.mapperROMBank = 1;
if (useBios && !skipBios && (gbHardware & 5))
{
gbMemoryMap[0x00] = &gbMemory[0x0000];
inBios = true;
}
else
{
gbMemoryMap[0x00] = &gbRom[0x0000];
inBios = false;
}
gbMemoryMap[0x01] = &gbRom[0x1000];
gbMemoryMap[0x02] = &gbRom[0x2000];
gbMemoryMap[0x03] = &gbRom[0x3000];
gbMemoryMap[0x04] = &gbRom[0x4000];
gbMemoryMap[0x05] = &gbRom[0x5000];
gbMemoryMap[0x06] = &gbRom[0x6000];
gbMemoryMap[0x07] = &gbRom[0x7000];
if(gbCgbMode) {
gbMemoryMap[0x08] = &gbVram[0x0000];
gbMemoryMap[0x09] = &gbVram[0x1000];
gbMemoryMap[0x0a] = &gbMemory[0xa000];
gbMemoryMap[0x0b] = &gbMemory[0xb000];
gbMemoryMap[0x0c] = &gbMemory[0xc000];
gbMemoryMap[0x0d] = &gbWram[0x1000];
gbMemoryMap[0x0e] = &gbMemory[0xe000];
gbMemoryMap[0x0f] = &gbMemory[0xf000];
} else {
gbMemoryMap[0x08] = &gbMemory[0x8000];
gbMemoryMap[0x09] = &gbMemory[0x9000];
gbMemoryMap[0x0a] = &gbMemory[0xa000];
gbMemoryMap[0x0b] = &gbMemory[0xb000];
gbMemoryMap[0x0c] = &gbMemory[0xc000];
gbMemoryMap[0x0d] = &gbMemory[0xd000];
gbMemoryMap[0x0e] = &gbMemory[0xe000];
gbMemoryMap[0x0f] = &gbMemory[0xf000];
}
if(gbRam) {
gbMemoryMap[0x0a] = &gbRam[0x0000];
gbMemoryMap[0x0b] = &gbRam[0x1000];
}
gbSoundReset();
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
gbLastTime = systemGetClock();
gbFrameCount = 0;
gbScreenOn = true;
gbSystemMessage = false;
gbCheatWrite(true); // Emulates GS codes.
}
void gbWriteSaveMBC1(const char * name)
{
if (gbRam)
{
FILE *gzFile = fopen(name,"wb");
if(gzFile == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
fwrite(gbRam,
1,
(gbRamSizeMask+1),
gzFile);
fclose(gzFile);
}
}
void gbWriteSaveMBC2(const char * name)
{
if (gbRam)
{
FILE *file = fopen(name, "wb");
if(file == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
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fwrite(&gbMemoryMap[0x0a],
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1,
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512,
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file);
fclose(file);
}
}
void gbWriteSaveMBC3(const char * name, bool extendedSave)
{
if (gbRam || extendedSave)
{
FILE *gzFile = fopen(name,"wb");
if (gbRam)
{
if(gzFile == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
fwrite(gbRam,
1,
(gbRamSizeMask+1),
gzFile);
}
if(extendedSave)
fwrite(&gbDataMBC3.mapperSeconds,
1,
10*sizeof(int) + sizeof(time_t),
gzFile);
fclose(gzFile);
}
}
void gbWriteSaveMBC5(const char * name)
{
if (gbRam)
{
FILE *gzFile = fopen(name,"wb");
if(gzFile == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
fwrite(gbRam,
1,
(gbRamSizeMask+1),
gzFile);
fclose(gzFile);
}
}
void gbWriteSaveMBC7(const char * name)
{
if (gbRam)
{
FILE *file = fopen(name, "wb");
if(file == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
fwrite(&gbMemory[0xa000],
1,
256,
file);
fclose(file);
}
}
void gbWriteSaveTAMA5(const char * name, bool extendedSave)
{
FILE *gzFile = fopen(name,"wb");
if(gzFile == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
if (gbRam)
fwrite(gbRam,
1,
(gbRamSizeMask+1),
gzFile);
fwrite(gbTAMA5ram,
1,
(gbTAMA5ramSize),
gzFile);
if(extendedSave)
fwrite(&gbDataTAMA5.mapperSeconds,
1,
14*sizeof(int) + sizeof(time_t),
gzFile);
fclose(gzFile);
}
void gbWriteSaveMMM01(const char * name)
{
if (gbRam)
{
FILE *gzFile = fopen(name,"wb");
if(gzFile == NULL) {
systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);
return;
}
fwrite(gbRam,
1,
(gbRamSizeMask+1),
gzFile);
fclose(gzFile);
}
}
bool gbReadSaveMBC1(const char * name)
{
if (gbRam)
{
gzFile gzFile = gzopen(name, "rb");
if(gzFile == NULL) {
return false;
}
int read = gzread(gzFile,
gbRam,
(gbRamSizeMask+1));
if(read != (gbRamSizeMask+1)) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
// Also checks if the battery file it bigger than gbRamSizeMask+1 !
u8 data[1];
data[0] = 0;
read = gzread(gzFile,
data,
1);
if(read >0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
gzclose(gzFile);
return true;
}
else
return false;
}
bool gbReadSaveMBC2(const char * name)
{
if (gbRam)
{
FILE *file = fopen(name, "rb");
if(file == NULL) {
return false;
}
fix MBC2 saving/loading
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size_t read = fread(&gbMemoryMap[0x0a],
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1,
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512,
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file);
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if(read != 512) {
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systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
fclose(file);
gbBatteryError = true;
return false;
}
// Also checks if the battery file it bigger than gbRamSizeMask+1 !
u8 data[1];
data[0] = 0;
read = fread(&data[0],
1,
1,
file);
if(read > 0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
fclose(file);
gbBatteryError = true;
return false;
}
fclose(file);
return true;
}
else
return false;
}
bool gbReadSaveMBC3(const char * name)
{
gzFile gzFile = gzopen(name, "rb");
if(gzFile == NULL) {
return false;
}
int read = 0;
if (gbRam)
read = gzread(gzFile,
gbRam,
(gbRamSizeMask+1));
else
read = (gbRamSizeMask+1);
bool res = true;
if(read != (gbRamSizeMask+1)) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gbBatteryError = true;
res = false;
} else if ((gbRomType == 0xf) || (gbRomType == 0x10)){
read = gzread(gzFile,
&gbDataMBC3.mapperSeconds,
sizeof(int)*10 + sizeof(time_t));
if(read != (sizeof(int)*10 + sizeof(time_t)) && read != 0) {
systemMessage(MSG_FAILED_TO_READ_RTC,N_("Failed to read RTC from save game %s (continuing)"),
name);
res = false;
}
else if (read == 0)
{
systemMessage(MSG_FAILED_TO_READ_RTC,N_("Failed to read RTC from save game %s (continuing)"),
name);
res = false;
}
else
{
// Also checks if the battery file it bigger than gbRamSizeMask+1+RTC !
u8 data[1];
data[0] = 0;
read = gzread(gzFile,
data,
1);
if(read >0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gbBatteryError = true;
res = false;
}
}
}
gzclose(gzFile);
return res;
}
bool gbReadSaveMBC5(const char * name)
{
if (gbRam)
{
gzFile gzFile = gzopen(name, "rb");
if(gzFile == NULL) {
return false;
}
int read = gzread(gzFile,
gbRam,
(gbRamSizeMask+1));
if(read != (gbRamSizeMask+1)) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
// Also checks if the battery file it bigger than gbRamSizeMask+1 !
u8 data[1];
data[0] = 0;
read = gzread(gzFile,
data,
1);
if(read >0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
gzclose(gzFile);
return true;
}
else
return false;
}
bool gbReadSaveMBC7(const char * name)
{
if (gbRam)
{
FILE *file = fopen(name, "rb");
if(file == NULL) {
return false;
}
size_t read = fread(&gbMemory[0xa000],
1,
256,
file);
if(read != 256) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
fclose(file);
gbBatteryError = true;
return false;
}
// Also checks if the battery file it bigger than gbRamSizeMask+1 !
u8 data[1];
data[0] = 0;
read = fread(&data[0],
1,
1,
file);
if(read > 0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
fclose(file);
gbBatteryError = true;
return false;
}
fclose(file);
return true;
}
else
return false;
}
bool gbReadSaveTAMA5(const char * name)
{
gzFile gzFile = gzopen(name, "rb");
if(gzFile == NULL) {
return false;
}
int read = 0;
if (gbRam)
read = gzread(gzFile,
gbRam,
(gbRamSizeMask+1));
else
read = gbRamSizeMask;
read += gzread(gzFile,
gbTAMA5ram,
gbTAMA5ramSize);
bool res = true;
if(read != (gbRamSizeMask+gbTAMA5ramSize+1)) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gbBatteryError = true;
res = false;
} else {
read = gzread(gzFile,
&gbDataTAMA5.mapperSeconds,
sizeof(int)*14 + sizeof(time_t));
if(read != (sizeof(int)*14 + sizeof(time_t)) && read != 0) {
systemMessage(MSG_FAILED_TO_READ_RTC,N_("Failed to read RTC from save game %s (continuing)"),
name);
res = false;
}
else if (read == 0)
{
systemMessage(MSG_FAILED_TO_READ_RTC,N_("Failed to read RTC from save game %s (continuing)"),
name);
res = false;
}
else
{
// Also checks if the battery file it bigger than gbRamSizeMask+1+RTC !
u8 data[1];
data[0] = 0;
read = gzread(gzFile,
data,
1);
if(read >0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gbBatteryError = true;
res = false;
}
}
}
gzclose(gzFile);
return res;
}
bool gbReadSaveMMM01(const char * name)
{
if (gbRam)
{
gzFile gzFile = gzopen(name, "rb");
if(gzFile == NULL) {
return false;
}
int read = gzread(gzFile,
gbRam,
(gbRamSizeMask+1));
if(read != (gbRamSizeMask+1)) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
// Also checks if the battery file it bigger than gbRamSizeMask+1 !
u8 data[1];
data[0] = 0;
read = gzread(gzFile,
data,
1);
if(read >0) {
systemMessage(MSG_FAILED_TO_READ_SGM,
N_("Battery file's size incompatible with the rom settings %s (%d).\nWarning : save of the battery file is now disabled !"), name, read);
gzclose(gzFile);
gbBatteryError = true;
return false;
}
gzclose(gzFile);
return true;
}
else
return false;
}
void gbInit()
{
gbGenFilter();
gbSgbInit();
gbMemory = (u8 *)malloc(65536);
pix = (u8 *)calloc(1,4*257*226);
gbLineBuffer = (u16 *)malloc(160 * sizeof(u16));
}
bool gbWriteBatteryFile(const char *file, bool extendedSave)
{
if(gbBattery) {
switch(gbRomType) {
case 0x03:
gbWriteSaveMBC1(file);
break;
case 0x06:
gbWriteSaveMBC2(file);
break;
case 0x0d:
gbWriteSaveMMM01(file);
break;
case 0x0f:
case 0x10:
gbWriteSaveMBC3(file, extendedSave);
break;
case 0x13:
case 0xfc:
gbWriteSaveMBC3(file, false);
case 0x1b:
case 0x1e:
gbWriteSaveMBC5(file);
break;
case 0x22:
gbWriteSaveMBC7(file);
break;
case 0xfd:
gbWriteSaveTAMA5(file, extendedSave);
break;
case 0xff:
gbWriteSaveMBC1(file);
break;
}
}
return true;
}
bool gbWriteBatteryFile(const char *file)
{
if (!gbBatteryError)
{
gbWriteBatteryFile(file, true);
return true;
}
else return false;
}
bool gbReadBatteryFile(const char *file)
{
bool res = false;
if(gbBattery) {
switch(gbRomType) {
case 0x03:
res = gbReadSaveMBC1(file);
break;
case 0x06:
res = gbReadSaveMBC2(file);
break;
case 0x0d:
res = gbReadSaveMMM01(file);
break;
case 0x0f:
case 0x10:
if(!gbReadSaveMBC3(file)) {
time(&gbDataMBC3.mapperLastTime);
struct tm *lt;
lt = localtime(&gbDataMBC3.mapperLastTime);
gbDataMBC3.mapperSeconds = lt->tm_sec;
gbDataMBC3.mapperMinutes = lt->tm_min;
gbDataMBC3.mapperHours = lt->tm_hour;
gbDataMBC3.mapperDays = lt->tm_yday & 255;
gbDataMBC3.mapperControl = (gbDataMBC3.mapperControl & 0xfe) |
(lt->tm_yday > 255 ? 1: 0);
res = false;
break;
}
res = true;
break;
case 0x13:
case 0xfc:
res = gbReadSaveMBC3(file);
break;
case 0x1b:
case 0x1e:
res = gbReadSaveMBC5(file);
break;
case 0x22:
res = gbReadSaveMBC7(file);
break;
case 0xfd:
if(!gbReadSaveTAMA5(file)) {
u8 gbDaysinMonth [12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
time(&gbDataTAMA5.mapperLastTime);
struct tm *lt;
lt = localtime(&gbDataTAMA5.mapperLastTime);
gbDataTAMA5.mapperSeconds = lt->tm_sec;
gbDataTAMA5.mapperMinutes = lt->tm_min;
gbDataTAMA5.mapperHours = lt->tm_hour;
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears = 1970;
int days = lt->tm_yday+365*3;
while (days)
{
gbDataTAMA5.mapperDays++;
days--;
if (gbDataTAMA5.mapperDays>gbDaysinMonth[gbDataTAMA5.mapperMonths-1])
{
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths++;
if (gbDataTAMA5.mapperMonths>12)
{
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears++;
if ((gbDataTAMA5.mapperYears & 3) == 0)
gbDaysinMonth[1] = 29;
else
gbDaysinMonth[1] = 28;
}
}
}
gbDataTAMA5.mapperControl = (gbDataTAMA5.mapperControl & 0xfe) |
(lt->tm_yday > 255 ? 1: 0);
res = false;
break;
}
res = true;
break;
case 0xff:
res = gbReadSaveMBC1(file);
break;
}
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
return res;
}
bool gbReadGSASnapshot(const char *fileName)
{
FILE *file = fopen(fileName, "rb");
if(!file) {
systemMessage(MSG_CANNOT_OPEN_FILE, N_("Cannot open file %s"), fileName);
return false;
}
fseek(file, 0x4, SEEK_SET);
char buffer[16];
char buffer2[16];
fread(buffer, 1, 15, file);
buffer[15] = 0;
memcpy(buffer2, &gbRom[0x134], 15);
buffer2[15] = 0;
if(memcmp(buffer, buffer2, 15)) {
systemMessage(MSG_CANNOT_IMPORT_SNAPSHOT_FOR,
N_("Cannot import snapshot for %s. Current game is %s"),
buffer,
buffer2);
fclose(file);
return false;
}
fseek(file, 0x13, SEEK_SET);
size_t read = 0;
int toRead = 0;
switch(gbRomType) {
case 0x03:
case 0x0f:
case 0x10:
case 0x13:
case 0x1b:
case 0x1e:
case 0xff:
read = fread(gbRam, 1, (gbRamSizeMask+1), file);
toRead = (gbRamSizeMask+1);
break;
case 0x06:
case 0x22:
read = fread(&gbMemory[0xa000],1,256,file);
toRead = 256;
break;
default:
systemMessage(MSG_UNSUPPORTED_SNAPSHOT_FILE,
N_("Unsupported snapshot file %s"),
fileName);
fclose(file);
return false;
}
fclose(file);
gbReset();
return true;
}
variable_desc gbSaveGameStruct[] = {
{ &PC.W, sizeof(u16) },
{ &SP.W, sizeof(u16) },
{ &AF.W, sizeof(u16) },
{ &BC.W, sizeof(u16) },
{ &DE.W, sizeof(u16) },
{ &HL.W, sizeof(u16) },
{ &IFF, sizeof(u8) },
{ &GBLCD_MODE_0_CLOCK_TICKS, sizeof(int) },
{ &GBLCD_MODE_1_CLOCK_TICKS, sizeof(int) },
{ &GBLCD_MODE_2_CLOCK_TICKS, sizeof(int) },
{ &GBLCD_MODE_3_CLOCK_TICKS, sizeof(int) },
{ &GBDIV_CLOCK_TICKS, sizeof(int) },
{ &GBLY_INCREMENT_CLOCK_TICKS, sizeof(int) },
{ &GBTIMER_MODE_0_CLOCK_TICKS, sizeof(int) },
{ &GBTIMER_MODE_1_CLOCK_TICKS, sizeof(int) },
{ &GBTIMER_MODE_2_CLOCK_TICKS, sizeof(int) },
{ &GBTIMER_MODE_3_CLOCK_TICKS, sizeof(int) },
{ &GBSERIAL_CLOCK_TICKS, sizeof(int) },
{ &GBSYNCHRONIZE_CLOCK_TICKS, sizeof(int) },
{ &gbDivTicks, sizeof(int) },
{ &gbLcdMode, sizeof(int) },
{ &gbLcdTicks, sizeof(int) },
{ &gbLcdLYIncrementTicks, sizeof(int) },
{ &gbTimerTicks, sizeof(int) },
{ &gbTimerClockTicks, sizeof(int) },
{ &gbSerialTicks, sizeof(int) },
{ &gbSerialBits, sizeof(int) },
{ &gbInt48Signal, sizeof(int) },
{ &gbInterruptWait, sizeof(int) },
{ &gbSynchronizeTicks, sizeof(int) },
{ &gbTimerOn, sizeof(int) },
{ &gbTimerMode, sizeof(int) },
{ &gbSerialOn, sizeof(int) },
{ &gbWindowLine, sizeof(int) },
{ &gbCgbMode, sizeof(int) },
{ &gbVramBank, sizeof(int) },
{ &gbWramBank, sizeof(int) },
{ &gbHdmaSource, sizeof(int) },
{ &gbHdmaDestination, sizeof(int) },
{ &gbHdmaBytes, sizeof(int) },
{ &gbHdmaOn, sizeof(int) },
{ &gbSpeed, sizeof(int) },
{ &gbSgbMode, sizeof(int) },
{ &register_DIV, sizeof(u8) },
{ &register_TIMA, sizeof(u8) },
{ &register_TMA, sizeof(u8) },
{ &register_TAC, sizeof(u8) },
{ &register_IF, sizeof(u8) },
{ &register_LCDC, sizeof(u8) },
{ &register_STAT, sizeof(u8) },
{ &register_SCY, sizeof(u8) },
{ &register_SCX, sizeof(u8) },
{ &register_LY, sizeof(u8) },
{ &register_LYC, sizeof(u8) },
{ &register_DMA, sizeof(u8) },
{ &register_WY, sizeof(u8) },
{ &register_WX, sizeof(u8) },
{ &register_VBK, sizeof(u8) },
{ &register_HDMA1, sizeof(u8) },
{ &register_HDMA2, sizeof(u8) },
{ &register_HDMA3, sizeof(u8) },
{ &register_HDMA4, sizeof(u8) },
{ &register_HDMA5, sizeof(u8) },
{ &register_SVBK, sizeof(u8) },
{ &register_IE , sizeof(u8) },
{ &gbBgp[0], sizeof(u8) },
{ &gbBgp[1], sizeof(u8) },
{ &gbBgp[2], sizeof(u8) },
{ &gbBgp[3], sizeof(u8) },
{ &gbObp0[0], sizeof(u8) },
{ &gbObp0[1], sizeof(u8) },
{ &gbObp0[2], sizeof(u8) },
{ &gbObp0[3], sizeof(u8) },
{ &gbObp1[0], sizeof(u8) },
{ &gbObp1[1], sizeof(u8) },
{ &gbObp1[2], sizeof(u8) },
{ &gbObp1[3], sizeof(u8) },
{ NULL, 0 }
};
static bool gbWriteSaveState(gzFile gzFile)
{
utilWriteInt(gzFile, GBSAVE_GAME_VERSION);
utilGzWrite(gzFile, &gbRom[0x134], 15);
utilWriteInt(gzFile, useBios);
utilWriteInt(gzFile, inBios);
utilWriteData(gzFile, gbSaveGameStruct);
utilGzWrite(gzFile, &IFF, 2);
if(gbSgbMode) {
gbSgbSaveGame(gzFile);
}
utilGzWrite(gzFile, &gbDataMBC1, sizeof(gbDataMBC1));
utilGzWrite(gzFile, &gbDataMBC2, sizeof(gbDataMBC2));
utilGzWrite(gzFile, &gbDataMBC3, sizeof(gbDataMBC3));
utilGzWrite(gzFile, &gbDataMBC5, sizeof(gbDataMBC5));
utilGzWrite(gzFile, &gbDataHuC1, sizeof(gbDataHuC1));
utilGzWrite(gzFile, &gbDataHuC3, sizeof(gbDataHuC3));
utilGzWrite(gzFile, &gbDataTAMA5, sizeof(gbDataTAMA5));
if (gbTAMA5ram != NULL)
utilGzWrite(gzFile, gbTAMA5ram, gbTAMA5ramSize);
utilGzWrite(gzFile, &gbDataMMM01, sizeof(gbDataMMM01));
utilGzWrite(gzFile, gbPalette, 128 * sizeof(u16));
utilGzWrite(gzFile, &gbMemory[0x8000], 0x8000);
if(gbRamSize && gbRam) {
utilWriteInt(gzFile, gbRamSize);
utilGzWrite(gzFile, gbRam, gbRamSize);
}
if(gbCgbMode) {
utilGzWrite(gzFile, gbVram, 0x4000);
utilGzWrite(gzFile, gbWram, 0x8000);
}
gbSoundSaveGame(gzFile);
gbCheatsSaveGame(gzFile);
utilWriteInt(gzFile, gbLcdModeDelayed);
utilWriteInt(gzFile, gbLcdTicksDelayed);
utilWriteInt(gzFile, gbLcdLYIncrementTicksDelayed);
utilWriteInt(gzFile, gbSpritesTicks[299]);
utilWriteInt(gzFile, gbTimerModeChange);
utilWriteInt(gzFile, gbTimerOnChange);
utilWriteInt(gzFile, gbHardware);
utilWriteInt(gzFile, gbBlackScreen);
utilWriteInt(gzFile, oldRegister_WY);
utilWriteInt(gzFile, gbWindowLine);
utilWriteInt(gzFile, inUseRegister_WY);
utilWriteInt(gzFile, gbScreenOn);
utilWriteInt(gzFile, 0x12345678); // end marker
return true;
}
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bool gbWriteMemSaveState(char *memory, int available)
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{
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gzFile gzFile = utilMemGzOpen(memory, available, "w");
if(gzFile == NULL) {
return false;
}
bool res = gbWriteSaveState(gzFile);
long pos = utilGzMemTell(gzFile)+8;
if(pos >= (available))
res = false;
utilGzClose(gzFile);
return res;
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}
bool gbWriteSaveState(const char *name)
{
gzFile gzFile = utilGzOpen(name,"wb");
if(gzFile == NULL)
return false;
bool res = gbWriteSaveState(gzFile);
utilGzClose(gzFile);
return res;
}
static bool gbReadSaveState(gzFile gzFile)
{
int version = utilReadInt(gzFile);
if(version > GBSAVE_GAME_VERSION || version < 0) {
systemMessage(MSG_UNSUPPORTED_VB_SGM,
N_("Unsupported VisualBoy save game version %d"), version);
return false;
}
u8 romname[20];
utilGzRead(gzFile, romname, 15);
if(memcmp(&gbRom[0x134], romname, 15) != 0) {
systemMessage(MSG_CANNOT_LOAD_SGM_FOR,
N_("Cannot load save game for %s. Playing %s"),
romname, &gbRom[0x134]);
return false;
}
bool ub = false;
bool ib = false;
if (version >= 11)
{
ub = utilReadInt(gzFile) ? true : false;
ib = utilReadInt(gzFile) ? true : false;
if((ub != useBios) && (ib)) {
if(useBios)
systemMessage(MSG_SAVE_GAME_NOT_USING_BIOS,
N_("Save game is not using the BIOS files"));
else
systemMessage(MSG_SAVE_GAME_USING_BIOS,
N_("Save game is using the BIOS file"));
return false;
}
}
gbReset();
inBios = ib;
utilReadData(gzFile, gbSaveGameStruct);
// Correct crash when loading color gameboy save in regular gameboy type.
if (!gbCgbMode)
{
if(gbVram != NULL) {
free(gbVram);
gbVram = NULL;
}
if(gbWram != NULL) {
free(gbWram);
gbWram = NULL;
}
}
else
{
if(gbVram == NULL)
gbVram = (u8 *)malloc(0x4000);
if(gbWram == NULL)
gbWram = (u8 *)malloc(0x8000);
memset(gbVram,0,0x4000);
memset(gbPalette,0, 2*128);
}
if(version >= GBSAVE_GAME_VERSION_7) {
utilGzRead(gzFile, &IFF, 2);
}
if(gbSgbMode) {
gbSgbReadGame(gzFile, version);
} else {
gbSgbMask = 0; // loading a game at the wrong time causes no display
}
if (version<11)
utilGzRead(gzFile, &gbDataMBC1, sizeof(gbDataMBC1) - sizeof(int));
else
utilGzRead(gzFile, &gbDataMBC1, sizeof(gbDataMBC1));
utilGzRead(gzFile, &gbDataMBC2, sizeof(gbDataMBC2));
if(version < GBSAVE_GAME_VERSION_4)
// prior to version 4, there was no adjustment for the time the game
// was last played, so we have less to read. This needs update if the
// structure changes again.
utilGzRead(gzFile, &gbDataMBC3, sizeof(gbDataMBC3)-sizeof(time_t));
else
utilGzRead(gzFile, &gbDataMBC3, sizeof(gbDataMBC3));
utilGzRead(gzFile, &gbDataMBC5, sizeof(gbDataMBC5));
utilGzRead(gzFile, &gbDataHuC1, sizeof(gbDataHuC1));
utilGzRead(gzFile, &gbDataHuC3, sizeof(gbDataHuC3));
if(version>=11)
{
utilGzRead(gzFile, &gbDataTAMA5, sizeof(gbDataTAMA5));
if(gbTAMA5ram != NULL) {
if(skipSaveGameBattery) {
utilGzSeek(gzFile, gbTAMA5ramSize, SEEK_CUR);
} else {
utilGzRead(gzFile, gbTAMA5ram, gbTAMA5ramSize);
}
}
utilGzRead(gzFile, &gbDataMMM01, sizeof(gbDataMMM01));
}
if(version < GBSAVE_GAME_VERSION_5) {
utilGzRead(gzFile, pix, 256*224*sizeof(u16));
}
memset(pix, 0, 257*226*sizeof(u32));
if(version < GBSAVE_GAME_VERSION_6) {
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utilGzRead(gzFile, gbPalette, (sizeof(u16)<<6));
} else{
utilGzRead(gzFile, gbPalette, (sizeof(u16)<<7));
}
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if (version < 11){
utilGzRead(gzFile, gbPalette, (sizeof(u16)<<7));
}
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if(version < GBSAVE_GAME_VERSION_10) {
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if(gbCgbMode || gbSgbMode) {
int gbp8 = gbPaletteOption << 3;
for(int i = 0; i < 8; i+=4){
gbPalette[i ] = systemGbPalette[gbp8+i ];
gbPalette[i+1] = systemGbPalette[gbp8+i+1];
gbPalette[i+2] = systemGbPalette[gbp8+i+2];
gbPalette[i+3] = systemGbPalette[gbp8+i+3];
}
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}
}
utilGzRead(gzFile, &gbMemory[0x8000], 0x8000);
if(gbRamSize && gbRam) {
if(version < 11)
if(skipSaveGameBattery) {
utilGzSeek(gzFile, gbRamSize, SEEK_CUR); //skip
} else {
utilGzRead(gzFile, gbRam, gbRamSize); //read
}
else
{
int ramSize = utilReadInt(gzFile);
if(skipSaveGameBattery) {
utilGzSeek(gzFile, (gbRamSize>ramSize) ? ramSize : gbRamSize, SEEK_CUR); //skip
} else {
utilGzRead(gzFile, gbRam, (gbRamSize>ramSize) ? ramSize : gbRamSize); //read
}
if(ramSize>gbRamSize)
utilGzSeek(gzFile,ramSize-gbRamSize,SEEK_CUR);
}
}
memset(gbSCYLine, register_SCY, sizeof(gbSCYLine));
memset(gbSCXLine, register_SCX, sizeof(gbSCXLine));
memset(gbBgpLine, (gbBgp[0] | (gbBgp[1]<<2) | (gbBgp[2]<<4) |
(gbBgp[3]<<6)), sizeof(gbBgpLine));
memset(gbObp0Line, (gbObp0[0] | (gbObp0[1]<<2) | (gbObp0[2]<<4) |
(gbObp0[3]<<6)), sizeof(gbObp0Line));
memset(gbObp1Line, (gbObp1[0] | (gbObp1[1]<<2) | (gbObp1[2]<<4) |
(gbObp1[3]<<6)), sizeof(gbObp1Line));
memset(gbSpritesTicks, 0x0, sizeof(gbSpritesTicks));
if (inBios)
{
gbMemoryMap[0x00] = &gbMemory[0x0000];
memcpy ((u8 *)(gbMemory), (u8 *)(gbRom), 0x1000);
memcpy ((u8 *)(gbMemory), (u8 *)(bios), 0x100);
}
else
gbMemoryMap[0x00] = &gbRom[0x0000];
gbMemoryMap[0x01] = &gbRom[0x1000];
gbMemoryMap[0x02] = &gbRom[0x2000];
gbMemoryMap[0x03] = &gbRom[0x3000];
gbMemoryMap[0x04] = &gbRom[0x4000];
gbMemoryMap[0x05] = &gbRom[0x5000];
gbMemoryMap[0x06] = &gbRom[0x6000];
gbMemoryMap[0x07] = &gbRom[0x7000];
gbMemoryMap[0x08] = &gbMemory[0x8000];
gbMemoryMap[0x09] = &gbMemory[0x9000];
gbMemoryMap[0x0a] = &gbMemory[0xa000];
gbMemoryMap[0x0b] = &gbMemory[0xb000];
gbMemoryMap[0x0c] = &gbMemory[0xc000];
gbMemoryMap[0x0d] = &gbMemory[0xd000];
gbMemoryMap[0x0e] = &gbMemory[0xe000];
gbMemoryMap[0x0f] = &gbMemory[0xf000];
switch(gbRomType) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
// MBC 1
memoryUpdateMapMBC1();
break;
case 0x05:
case 0x06:
// MBC2
memoryUpdateMapMBC2();
break;
case 0x0b:
case 0x0c:
case 0x0d:
// MMM01
memoryUpdateMapMMM01();
break;
case 0x0f:
case 0x10:
case 0x11:
case 0x12:
case 0x13:
// MBC 3
memoryUpdateMapMBC3();
break;
case 0x19:
case 0x1a:
case 0x1b:
// MBC5
memoryUpdateMapMBC5();
break;
case 0x1c:
case 0x1d:
case 0x1e:
// MBC 5 Rumble
memoryUpdateMapMBC5();
break;
case 0x22:
// MBC 7
memoryUpdateMapMBC7();
break;
case 0x56:
// GS3
memoryUpdateMapGS3();
break;
case 0xfd:
// TAMA5
memoryUpdateMapTAMA5();
break;
case 0xfe:
// HuC3
memoryUpdateMapHuC3();
break;
case 0xff:
// HuC1
memoryUpdateMapHuC1();
break;
}
if(gbCgbMode) {
utilGzRead(gzFile, gbVram, 0x4000);
utilGzRead(gzFile, gbWram, 0x8000);
int value = register_SVBK;
if(value == 0)
value = 1;
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gbMemoryMap[0x08] = &gbVram[register_VBK << 13];
gbMemoryMap[0x09] = &gbVram[(register_VBK << 13) + 0x1000];
gbMemoryMap[0x0d] = &gbWram[value << 12];
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}
gbSoundReadGame(version, gzFile);
if (gbCgbMode && gbSgbMode) {
gbSgbMode = 0;
}
if(gbBorderOn && !gbSgbMask) {
gbSgbRenderBorder();
}
systemDrawScreen();
if(version > GBSAVE_GAME_VERSION_1)
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{
if( skipSaveGameCheats ) {
gbCheatsReadGameSkip(gzFile, version);
} else {
gbCheatsReadGame(gzFile, version);
}
}
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if (version<11)
{
gbWriteMemory(0xff00, 0);
gbMemory[0xff04] = register_DIV;
gbMemory[0xff05] = register_TIMA;
gbMemory[0xff06] = register_TMA;
gbMemory[0xff07] = register_TAC;
gbMemory[0xff40] = register_LCDC;
gbMemory[0xff42] = register_SCY;
gbMemory[0xff43] = register_SCX;
gbMemory[0xff44] = register_LY;
gbMemory[0xff45] = register_LYC;
gbMemory[0xff46] = register_DMA;
gbMemory[0xff4a] = register_WY;
gbMemory[0xff4b] = register_WX;
gbMemory[0xff4f] = register_VBK;
gbMemory[0xff51] = register_HDMA1;
gbMemory[0xff52] = register_HDMA2;
gbMemory[0xff53] = register_HDMA3;
gbMemory[0xff54] = register_HDMA4;
gbMemory[0xff55] = register_HDMA5;
gbMemory[0xff70] = register_SVBK;
gbMemory[0xffff] = register_IE;
GBDIV_CLOCK_TICKS = 64;
if (gbSpeed)
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gbDivTicks >>=1;
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if ((gbLcdMode == 0) && (register_STAT & 8))
gbInt48Signal |= 1;
if ((gbLcdMode == 1) && (register_STAT & 0x10))
gbInt48Signal |= 2;
if ((gbLcdMode == 2) && (register_STAT & 0x20))
gbInt48Signal |= 4;
if ((register_LY==register_LYC) && (register_STAT & 0x40))
gbInt48Signal |= 8;
gbLcdLYIncrementTicks = GBLY_INCREMENT_CLOCK_TICKS;
if (gbLcdMode == 2)
gbLcdLYIncrementTicks-=GBLCD_MODE_2_CLOCK_TICKS-gbLcdTicks;
else if (gbLcdMode == 3)
gbLcdLYIncrementTicks -=GBLCD_MODE_2_CLOCK_TICKS+GBLCD_MODE_3_CLOCK_TICKS-gbLcdTicks;
else if (gbLcdMode == 0)
gbLcdLYIncrementTicks =gbLcdTicks;
else if (gbLcdMode == 1)
{
gbLcdLYIncrementTicks = gbLcdTicks % GBLY_INCREMENT_CLOCK_TICKS;
if (register_LY == 0x99)
gbLcdLYIncrementTicks =gbLine99Ticks;
else if (register_LY == 0)
gbLcdLYIncrementTicks += GBLY_INCREMENT_CLOCK_TICKS;
}
gbLcdModeDelayed = gbLcdMode;
gbLcdTicksDelayed = gbLcdTicks--;
gbLcdLYIncrementTicksDelayed = gbLcdLYIncrementTicks--;
gbInterruptWait = 0;
memset(gbSpritesTicks,0,sizeof(gbSpritesTicks));
}
else
{
gbLcdModeDelayed = utilReadInt(gzFile);
gbLcdTicksDelayed = utilReadInt(gzFile);
gbLcdLYIncrementTicksDelayed = utilReadInt(gzFile);
gbSpritesTicks[299] = utilReadInt(gzFile) & 0xff;
gbTimerModeChange = (utilReadInt(gzFile) ? true : false);
gbTimerOnChange = (utilReadInt(gzFile) ? true : false);
gbHardware = utilReadInt(gzFile);
gbBlackScreen = (utilReadInt(gzFile) ? true : false);
oldRegister_WY = utilReadInt(gzFile);
gbWindowLine = utilReadInt(gzFile);
inUseRegister_WY = utilReadInt(gzFile);
gbScreenOn = (utilReadInt(gzFile) ? true : false);
}
if (gbSpeed)
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gbLine99Ticks <<= 1;
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systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
if ( version >= 12 && utilReadInt( gzFile ) != 0x12345678 )
assert( false ); // fails if something read too much/little from file
return true;
}
bool gbReadMemSaveState(char *memory, int available)
{
gzFile gzFile = utilMemGzOpen(memory, available, "r");
bool res = gbReadSaveState(gzFile);
utilGzClose(gzFile);
return res;
}
bool gbReadSaveState(const char *name)
{
gzFile gzFile = utilGzOpen(name,"rb");
if(gzFile == NULL) {
return false;
}
bool res = gbReadSaveState(gzFile);
utilGzClose(gzFile);
return res;
}
bool gbWritePNGFile(const char *fileName)
{
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/* if(gbBorderOn)
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return utilWritePNGFile(fileName, 256, 224, pix);
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return utilWritePNGFile(fileName, 160, 144, pix);*/
return false;
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}
bool gbWriteBMPFile(const char *fileName)
{
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/* if(gbBorderOn)
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return utilWriteBMPFile(fileName, 256, 224, pix);
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return utilWriteBMPFile(fileName, 160, 144, pix);*/
return false;
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}
void gbCleanUp()
{
if(gbRam != NULL) {
free(gbRam);
gbRam = NULL;
}
if(gbRom != NULL) {
free(gbRom);
gbRom = NULL;
}
if(bios != NULL) {
free(bios);
bios = NULL;
}
if(gbMemory != NULL) {
free(gbMemory);
gbMemory = NULL;
}
if(gbLineBuffer != NULL) {
free(gbLineBuffer);
gbLineBuffer = NULL;
}
if(pix != NULL) {
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free(pix);
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pix = NULL;
}
gbSgbShutdown();
if(gbVram != NULL) {
free(gbVram);
gbVram = NULL;
}
if(gbWram != NULL) {
free(gbWram);
gbWram = NULL;
}
if(gbTAMA5ram != NULL) {
free(gbTAMA5ram);
gbTAMA5ram = NULL;
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
}
bool gbLoadRom(const char *szFile)
{
int size = 0;
if(gbRom != NULL) {
gbCleanUp();
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
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/* gbRom = utilLoad(szFile,
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utilIsGBImage,
NULL,
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size);*/
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if(!gbRom)
return false;
gbRomSize = size;
gbBatteryError = false;
if(bios != NULL) {
free(bios);
bios = NULL;
}
bios = (u8 *)calloc(1,0x100);
return gbUpdateSizes();
}
bool gbUpdateSizes()
{
if(gbRom[0x148] > 8) {
systemMessage(MSG_UNSUPPORTED_ROM_SIZE,
N_("Unsupported rom size %02x"), gbRom[0x148]);
return false;
}
if(gbRomSize < gbRomSizes[gbRom[0x148]]) {
gbRom = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
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int gbrSize = gbRomSizes[gbRom[0x148]];
for (int i = gbRomSize; i < gbrSize; ++i){
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gbRom[i] = 0x00; // Not sure if it's 0x00, 0xff or random data...
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}
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}
// (it's in the case a cart is 'lying' on its size.
else if ((gbRomSize>gbRomSizes[gbRom[0x148]]) && (genericflashcardEnable))
{
gbRomSize = gbRomSize>>16;
gbRom[0x148] = 0;
if (gbRomSize)
{
while (!((gbRomSize & 1) || (gbRom[0x148] == 7)))
{
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++gbRom[0x148];
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gbRomSize>>=1;
}
optimizations from dancinninja
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++gbRom[0x148];
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}
gbRom = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
}
gbRomSize = gbRomSizes[gbRom[0x148]];
gbRomSizeMask = gbRomSizesMasks[gbRom[0x148]];
// The 'genericflashcard' option allows some PD to work.
// However, the setting is dangerous (if you let in enabled
// and play a normal game, it might just break everything).
// That's why it is not saved in the emulator options.
// Also I added some checks in VBA to make sure your saves will not be
// overwritten if you wrongly enable this option for a game
// you already played (and vice-versa, ie. if you forgot to
// enable the option for a game you played with it enabled, like Shawu Story).
u8 ramsize = genericflashcardEnable ? 5 : gbRom[0x149];
gbRom[0x149] = ramsize;
optimizations from dancinninja
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if(((gbRom[2] - 0x6D) | (gbRom[5] - 0x47) | (gbRom[6] - 0x65) | (gbRom[7] - 0x6E) |
(gbRom[8] - 0x69) | (gbRom[9] - 0x65) | (gbRom[0xA] - 0x28) | (gbRom[0xB] - 0x54)) == 0)
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{
gbCheatingDevice = 1; // GameGenie
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for (int i = 0; i < 0x20; i+=8){ // Cleans GG hardware registers
gbRom[0x4000+i] =
gbRom[0x4001+i] =
gbRom[0x4002+i] =
gbRom[0x4003+i] =
gbRom[0x4004+i] =
gbRom[0x4005+i] =
gbRom[0x4006+i] =
gbRom[0x4007+i] = 0;
}
}
else if((((gbRom[0x104] - 0x44) | (gbRom[0x156] - 0xEA) | (gbRom[0x158] - 0x7F) |
(gbRom[0x159] - 0xEA) | (gbRom[0x15B] - 0x7F)) == 0)
|| (((gbRom[0x165] - 0x3E) | (gbRom[0x166] - 0xD9) | (gbRom[0x16D] - 0xE1) | (gbRom[0x16E] - 0x7F)) == 0))
{
gbCheatingDevice = 2; // GameShark
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}
else gbCheatingDevice = 0;
if(ramsize > 5) {
systemMessage(MSG_UNSUPPORTED_RAM_SIZE,
N_("Unsupported ram size %02x"), gbRom[0x149]);
return false;
}
gbRamSize = gbRamSizes[ramsize];
gbRamSizeMask = gbRamSizesMasks[ramsize];
gbRomType = gbRom[0x147];
if (genericflashcardEnable)
{
gbRomType = 0x1b;
}
else if (gbCheatingDevice == 1)
gbRomType = 0x55;
else if (gbCheatingDevice == 2)
gbRomType = 0x56;
gbRom[0x147] = gbRomType;
mapperReadRAM = NULL;
switch(gbRomType) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x08:
case 0x09:
// MBC 1
mapper = mapperMBC1ROM;
mapperRAM = mapperMBC1RAM;
mapperReadRAM = mapperMBC1ReadRAM;
break;
case 0x05:
case 0x06:
// MBC2
mapper = mapperMBC2ROM;
mapperRAM = mapperMBC2RAM;
gbRamSize = 0x200;
gbRamSizeMask = 0x1ff;
break;
case 0x0b:
case 0x0c:
case 0x0d:
// MMM01
mapper = mapperMMM01ROM;
mapperRAM = mapperMMM01RAM;
break;
case 0x0f:
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0xfc:
// MBC 3
mapper = mapperMBC3ROM;
mapperRAM = mapperMBC3RAM;
mapperReadRAM = mapperMBC3ReadRAM;
break;
case 0x19:
case 0x1a:
case 0x1b:
// MBC5
mapper = mapperMBC5ROM;
mapperRAM = mapperMBC5RAM;
mapperReadRAM = mapperMBC5ReadRAM;
break;
case 0x1c:
case 0x1d:
case 0x1e:
// MBC 5 Rumble
mapper = mapperMBC5ROM;
mapperRAM = mapperMBC5RAM;
mapperReadRAM = mapperMBC5ReadRAM;
break;
case 0x22:
// MBC 7
mapper = mapperMBC7ROM;
mapperRAM = mapperMBC7RAM;
mapperReadRAM = mapperMBC7ReadRAM;
gbRamSize = 0x200;
gbRamSizeMask = 0x1ff;
break;
// GG (GameGenie)
case 0x55:
mapper = mapperGGROM;
break;
case 0x56:
// GS (GameShark)
mapper = mapperGS3ROM;
break;
case 0xfd:
// TAMA5
if (gbRam!= NULL)
{
free(gbRam);
gbRam = NULL;
}
ramsize = 3;
gbRamSize = gbRamSizes[3];
gbRamSizeMask = gbRamSizesMasks[3];
gbRamFill = 0x0;
gbTAMA5ramSize = 0x100;
if (gbTAMA5ram == NULL)
gbTAMA5ram = (u8 *)malloc(gbTAMA5ramSize);
memset(gbTAMA5ram, 0x0, gbTAMA5ramSize);
mapperRAM = mapperTAMA5RAM;
mapperReadRAM = mapperTAMA5ReadRAM;
mapperUpdateClock = memoryUpdateTAMA5Clock;
break;
case 0xfe:
// HuC3
mapper = mapperHuC3ROM;
mapperRAM = mapperHuC3RAM;
mapperReadRAM = mapperHuC3ReadRAM;
break;
case 0xff:
// HuC1
mapper = mapperHuC1ROM;
mapperRAM = mapperHuC1RAM;
break;
default:
systemMessage(MSG_UNKNOWN_CARTRIDGE_TYPE,
N_("Unknown cartridge type %02x"), gbRomType);
return false;
}
if(gbRamSize) {
gbRam = (u8 *)malloc(gbRamSize);
memset(gbRam, gbRamFill, gbRamSize);
}
switch(gbRomType) {
case 0x03:
case 0x06:
case 0x0f:
case 0x10:
case 0x13:
case 0x1b:
case 0x1d:
case 0x1e:
case 0x22:
case 0xfd:
case 0xff:
gbBattery = 1;
break;
}
gbInit();
//gbReset();
switch(gbRomType) {
case 0x1c:
case 0x1d:
case 0x1e:
gbDataMBC5.isRumbleCartridge = 1;
}
return true;
}
int gbGetNextEvent (int clockTicks)
{
if (register_LCDC & 0x80)
{
if(gbLcdTicks < clockTicks)
clockTicks = gbLcdTicks;
if(gbLcdTicksDelayed < clockTicks)
clockTicks = gbLcdTicksDelayed;
if(gbLcdLYIncrementTicksDelayed < clockTicks)
clockTicks = gbLcdLYIncrementTicksDelayed;
}
if(gbLcdLYIncrementTicks < clockTicks)
clockTicks = gbLcdLYIncrementTicks;
if(gbSerialOn && (gbSerialTicks < clockTicks))
clockTicks = gbSerialTicks;
if(gbTimerOn && (((gbInternalTimer) & gbTimerMask[gbTimerMode])+1 < clockTicks))
clockTicks = ((gbInternalTimer) & gbTimerMask[gbTimerMode])+1;
//if(soundTicks && (soundTicks < clockTicks))
// clockTicks = soundTicks;
if ((clockTicks<=0) || (gbInterruptWait))
clockTicks = 1;
return clockTicks;
}
void gbDrawLine()
{
switch(systemColorDepth) {
case 16:
{
u16 * dest = (u16 *)pix +
(gbBorderLineSkip+2) * (register_LY + gbBorderRowSkip+1)
+ gbBorderColumnSkip;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
for(u32 x = 0; x < 160u; ) {
dest[x ] = systemColorMap16[gbLineMix[x ]];
dest[x+1] = systemColorMap16[gbLineMix[x+1]];
dest[x+2] = systemColorMap16[gbLineMix[x+2]];
dest[x+3] = systemColorMap16[gbLineMix[x+3]];
dest[x+4] = systemColorMap16[gbLineMix[x+4]];
dest[x+5] = systemColorMap16[gbLineMix[x+5]];
dest[x+6] = systemColorMap16[gbLineMix[x+6]];
dest[x+7] = systemColorMap16[gbLineMix[x+7]];
dest[x+8] = systemColorMap16[gbLineMix[x+8]];
dest[x+9] = systemColorMap16[gbLineMix[x+9]];
dest[x+10] = systemColorMap16[gbLineMix[x+10]];
dest[x+11] = systemColorMap16[gbLineMix[x+11]];
dest[x+12] = systemColorMap16[gbLineMix[x+12]];
dest[x+13] = systemColorMap16[gbLineMix[x+13]];
dest[x+14] = systemColorMap16[gbLineMix[x+14]];
dest[x+15] = systemColorMap16[gbLineMix[x+15]];
x += 16;
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}
if(gbBorderOn)
dest += gbBorderColumnSkip;
*dest++ = 0; // for filters that read one pixel more
}
break;
case 24:
{
u8 *dest = (u8 *)pix +
3*(gbBorderLineSkip * (register_LY + gbBorderRowSkip) +
gbBorderColumnSkip);
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
for(u32 x = 0; x < 160;) {
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*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];
dest+= 3;
}
}
break;
case 32:
{
u32 * dest = (u32 *)pix +
(gbBorderLineSkip+1) * (register_LY + gbBorderRowSkip+1)
+ gbBorderColumnSkip;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
for(u32 x = 0; x < 160u; ) {
dest[x ] = systemColorMap32[gbLineMix[x ]];
dest[x+1] = systemColorMap32[gbLineMix[x+1]];
dest[x+2] = systemColorMap32[gbLineMix[x+2]];
dest[x+3] = systemColorMap32[gbLineMix[x+3]];
dest[x+4] = systemColorMap32[gbLineMix[x+4]];
dest[x+5] = systemColorMap32[gbLineMix[x+5]];
dest[x+6] = systemColorMap32[gbLineMix[x+6]];
dest[x+7] = systemColorMap32[gbLineMix[x+7]];
dest[x+8] = systemColorMap32[gbLineMix[x+8]];
dest[x+9] = systemColorMap32[gbLineMix[x+9]];
dest[x+10] = systemColorMap32[gbLineMix[x+10]];
dest[x+11] = systemColorMap32[gbLineMix[x+11]];
dest[x+12] = systemColorMap32[gbLineMix[x+12]];
dest[x+13] = systemColorMap32[gbLineMix[x+13]];
dest[x+14] = systemColorMap32[gbLineMix[x+14]];
dest[x+15] = systemColorMap32[gbLineMix[x+15]];
x+=16;
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}
}
break;
}
}
void gbEmulate(int ticksToStop)
{
gbRegister tempRegister;
u8 tempValue;
s8 offset;
clockTicks = 0;
gbDmaTicks = 0;
register int opcode = 0;
int opcode1 = 0;
int opcode2 = 0;
bool execute = false;
while(1) {
#ifndef FINAL_VERSION
if(systemDebug) {
if(!(IFF & 0x80)) {
if(systemDebug > 1) {
sprintf(gbBuffer,"PC=%04x AF=%04x BC=%04x DE=%04x HL=%04x SP=%04x I=%04x\n",
PC.W, AF.W, BC.W, DE.W,HL.W,SP.W,IFF);
} else {
sprintf(gbBuffer,"PC=%04x I=%02x\n", PC.W, IFF);
}
log(gbBuffer);
}
}
#endif
u16 oldPCW = PC.W;
if(IFF & 0x80) {
if(register_LCDC & 0x80) {
clockTicks = gbLcdTicks;
} else
clockTicks = 1000;
clockTicks = gbGetNextEvent(clockTicks);
/*if(gbLcdTicksDelayed < clockTicks)
clockTicks = gbLcdTicksDelayed;
if(gbLcdLYIncrementTicksDelayed < clockTicks)
clockTicks = gbLcdLYIncrementTicksDelayed;
if(gbLcdLYIncrementTicks < clockTicks)
clockTicks = gbLcdLYIncrementTicks;
if(gbSerialOn && (gbSerialTicks < clockTicks))
clockTicks = gbSerialTicks;
if(gbTimerOn && (((gbInternalTimer) & gbTimerMask[gbTimerMode])+1 < clockTicks))
clockTicks = ((gbInternalTimer) & gbTimerMask[gbTimerMode])+1;
if(soundTicks && (soundTicks < clockTicks))
clockTicks = soundTicks;
if ((clockTicks<=0) || (gbInterruptWait))
clockTicks = 1;*/
} else {
// First we apply the clockTicks, then we execute the opcodes.
opcode1 = 0;
opcode2 = 0;
execute = true;
opcode2 = opcode1 = opcode = gbReadOpcode(PC.W++);
// If HALT state was launched while IME = 0 and (register_IF & register_IE & 0x1F),
// PC.W is not incremented for the first byte of the next instruction.
if (IFF & 2)
{
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
--PC.W;
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IFF &= ~2;
}
clockTicks = gbCycles[opcode];
switch(opcode) {
case 0xCB:
// extended opcode
opcode2 = opcode = gbReadOpcode(PC.W++);
clockTicks = gbCyclesCB[opcode];
break;
}
gbOldClockTicks = clockTicks-1;
gbIntBreak = 1;
}
if(!emulating)
return;
// For 'breakpoint' support (opcode 0xFC is considered as a breakpoint)
if ((clockTicks==0) && execute)
{
PC.W = oldPCW;
return;
}
if (!(IFF & 0x80))
clockTicks = 1;
gbRedoLoop:
if (gbInterruptWait)
gbInterruptWait = 0;
else
gbInterruptLaunched = 0;
// Used for the EI/DI instruction's delay.
if (IFF & 0x38)
{
int tempIFF = (IFF >> 4) & 3;
if (tempIFF <=clockTicks)
{
tempIFF = 0;
IFF |=1;
}
else
tempIFF -= clockTicks;
IFF = (IFF & 0xCF) | (tempIFF <<4);
if (IFF & 0x08)
IFF &= 0x82;
}
if (register_LCDCBusy)
{
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
register_LCDCBusy-=clockTicks;
if (register_LCDCBusy<0)
register_LCDCBusy = 0;
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}
if(gbSgbMode) {
if(gbSgbPacketTimeout) {
gbSgbPacketTimeout -= clockTicks;
if(gbSgbPacketTimeout <= 0)
gbSgbResetPacketState();
}
}
ticksToStop -= clockTicks;
// DIV register emulation
gbDivTicks -= clockTicks;
while(gbDivTicks <= 0) {
gbMemory[0xff04] = ++register_DIV;
gbDivTicks += GBDIV_CLOCK_TICKS;
}
if(register_LCDC & 0x80) {
// LCD stuff
gbLcdTicks -= clockTicks;
gbLcdTicksDelayed -= clockTicks;
gbLcdLYIncrementTicks -= clockTicks;
gbLcdLYIncrementTicksDelayed -= clockTicks;
// our counters are off, see what we need to do
// This looks (and kinda is) complicated, however this
// is the only way I found to emulate properly the way
// the real hardware operates...
while(((gbLcdTicks <= 0) && (gbLCDChangeHappened == false)) ||
((gbLcdTicksDelayed <= 0) && (gbLCDChangeHappened == true)) ||
((gbLcdLYIncrementTicks <= 0) && (gbLYChangeHappened == false)) ||
((gbLcdLYIncrementTicksDelayed<=0) && (gbLYChangeHappened == true)))
{
if ((gbLcdLYIncrementTicks <= 0) && (!gbLYChangeHappened))
{
gbLYChangeHappened = true;
gbMemory[0xff44] = register_LY = (register_LY + 1) % 154;
if (register_LY == 0x91)
{
/* if (IFF & 0x80)
gbScreenOn = !gbScreenOn;
else*/ if (register_LCDC & 0x80)
gbScreenOn = true;
}
gbLcdLYIncrementTicks += GBLY_INCREMENT_CLOCK_TICKS;
if (gbLcdMode == 1)
{
if(register_LY == 153)
gbLcdLYIncrementTicks -= GBLY_INCREMENT_CLOCK_TICKS - gbLine99Ticks;
else if(register_LY == 0)
gbLcdLYIncrementTicks += GBLY_INCREMENT_CLOCK_TICKS - gbLine99Ticks;
}
// GB only 'bug' : Halt state is broken one tick before LY==LYC interrupt
// is reflected in the registers.
if ((gbHardware & 5) && (IFF & 0x80) && (register_LY == register_LYC)
&& (register_STAT & 0x40) && (register_LY != 0))
{
if (!((gbLcdModeDelayed != 1) && (register_LY==0)))
{
gbInt48Signal &= ~9;
gbCompareLYToLYC();
gbLYChangeHappened = false;
gbMemory[0xff41] = register_STAT;
gbMemory[0xff0f] = register_IF;
}
gbLcdLYIncrementTicksDelayed += GBLY_INCREMENT_CLOCK_TICKS - gbLine99Ticks+1;
}
}
if ((gbLcdTicks <= 0) && (!gbLCDChangeHappened))
{
gbLCDChangeHappened = true;
switch(gbLcdMode)
{
case 0:
{
// H-Blank
// check if we reached the V-Blank period
if(register_LY == 144) {
// Yes, V-Blank
// set the LY increment counter
if (gbHardware & 0x5)
{
register_IF |= 1; // V-Blank interrupt
}
gbInt48Signal &= ~6;
if(register_STAT & 0x10)
{
// send LCD interrupt only if no interrupt 48h signal...
if ((!(gbInt48Signal & 1)) && ((!(gbInt48Signal & 8)) || (gbHardware & 0x0a)))
{
register_IF |=2;
gbInterruptLaunched |= 2;
if (gbHardware & 0xa)
gbInterruptWait = 1;
}
gbInt48Signal |= 2;
}
gbInt48Signal &= ~1;
gbLcdTicks += GBLCD_MODE_1_CLOCK_TICKS;
gbLcdMode = 1;
} else {
// go the the OAM being accessed mode
gbLcdTicks += GBLCD_MODE_2_CLOCK_TICKS;
gbLcdMode = 2;
gbInt48Signal &= ~6;
if(register_STAT & 0x20)
{
// send LCD interrupt only if no interrupt 48h signal...
if (!gbInt48Signal)
{
register_IF |= 2;
gbInterruptLaunched |= 2;
}
gbInt48Signal |= 4;
}
gbInt48Signal &= ~1;
}
}
break;
case 1:
{
// V-Blank
// next mode is OAM being accessed mode
gbInt48Signal &= ~5;
if(register_STAT & 0x20)
{
// send LCD interrupt only if no interrupt 48h signal...
if (!gbInt48Signal)
{
register_IF |= 2;
gbInterruptLaunched |= 2;
if ((gbHardware & 0xa) && (IFF & 0x80))
gbInterruptWait = 1;
}
gbInt48Signal |= 4;
}
gbInt48Signal &= ~2;
gbLcdTicks += GBLCD_MODE_2_CLOCK_TICKS;
gbLcdMode = 2;
register_LY = 0x00;
}
break;
case 2:
{
// OAM being accessed mode
// next mode is OAM and VRAM in use
if ((gbScreenOn) && (register_LCDC & 0x80))
{
gbDrawSprites(false);
// Used to add a one tick delay when a window line is drawn.
//(fixes a part of Carmaggedon problem)
if((register_LCDC & 0x01 || gbCgbMode) && (register_LCDC & 0x20) &&
(gbWindowLine != -2)) {
int inUseRegister_WY = 0;
int tempgbWindowLine = gbWindowLine;
if ((tempgbWindowLine == -1) || (tempgbWindowLine>144))
{
inUseRegister_WY = oldRegister_WY;
if (register_LY>oldRegister_WY)
tempgbWindowLine = 146;
}
if(register_LY >= inUseRegister_WY) {
if (tempgbWindowLine == -1)
tempgbWindowLine = 0;
int wx = register_WX;
wx -= 7;
if (wx<0)
wx = 0;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
if((wx <= 159) && (tempgbWindowLine <= 143)){
int i = 300 - 4;
if (gbSpeed){
do{
gbSpritesTicks[i]+=3;
gbSpritesTicks[i+1]+=3;
gbSpritesTicks[i+2]+=3;
gbSpritesTicks[i+3]+=3;
i-=4;
}while(i>=0);
}else{
do{
++gbSpritesTicks[i];
++gbSpritesTicks[i+1];
++gbSpritesTicks[i+2];
++gbSpritesTicks[i+3];
i-=4;
}while(i>=0);
}
}
upgrade sound core and GB engine
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}
}
}
gbInt48Signal &= ~7;
gbLcdTicks += GBLCD_MODE_3_CLOCK_TICKS+gbSpritesTicks[299];
gbLcdMode = 3;
}
break;
case 3:
{
// OAM and VRAM in use
// next mode is H-Blank
gbInt48Signal &= ~7;
if(register_STAT & 0x08)
{
// send LCD interrupt only if no interrupt 48h signal...
if (!(gbInt48Signal & 8))
{
register_IF |= 2;
if ((gbHardware & 0xa) && (IFF & 0x80))
gbInterruptWait = 1;
}
gbInt48Signal |= 1;
}
gbLcdTicks += GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299];
gbLcdMode = 0;
// No HDMA during HALT !
if(gbHdmaOn && (!(IFF & 0x80) || (register_IE & register_IF & 0x1f))) {
gbDoHdma();
}
}
break;
}
}
if ((gbLcdTicksDelayed <= 0) && (gbLCDChangeHappened)) {
int framesToSkip = systemFrameSkip;
if(speedup)
framesToSkip = 9; // try 6 FPS during speedup
//gbLcdTicksDelayed = gbLcdTicks+1;
gbLCDChangeHappened = false;
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
switch(gbLcdModeDelayed) {
upgrade sound core and GB engine
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case 0:
{
// H-Blank
memset(gbSCYLine,gbSCYLine[299],sizeof(gbSCYLine));
memset(gbSCXLine,gbSCXLine[299],sizeof(gbSCXLine));
memset(gbBgpLine,gbBgpLine[299],sizeof(gbBgpLine));
memset(gbObp0Line,gbObp0Line[299],sizeof(gbObp0Line));
memset(gbObp1Line,gbObp1Line[299],sizeof(gbObp1Line));
memset(gbSpritesTicks,gbSpritesTicks[299],sizeof(gbSpritesTicks));
if (gbWindowLine <0)
oldRegister_WY = register_WY;
// check if we reached the V-Blank period
if(register_LY == 144) {
// Yes, V-Blank
// set the LY increment counter
if(register_LCDC & 0x80) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
if (gbHardware & 0xa){
register_IF |= 1; // V-Blank interrupt
gbInterruptLaunched |=1;
upgrade sound core and GB engine
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}
}
gbLcdTicksDelayed += GBLCD_MODE_1_CLOCK_TICKS;
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
gbLcdModeDelayed = 1;
upgrade sound core and GB engine
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optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbFrameCount;
upgrade sound core and GB engine
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systemFrame();
if((gbFrameCount % 10) == 0)
system10Frames(60);
if(gbFrameCount >= 60) {
u32 currentTime = systemGetClock();
if(currentTime != gbLastTime)
systemShowSpeed(100000/(currentTime - gbLastTime));
else
systemShowSpeed(0);
gbLastTime = currentTime;
gbFrameCount = 0;
}
if(systemReadJoypads()) {
// read joystick
if(gbSgbMode && gbSgbMultiplayer) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
gbJoymask[0] = systemReadJoypad(0);
gbJoymask[1] = systemReadJoypad(1);
if(gbSgbFourPlayers) {
upgrade sound core and GB engine
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gbJoymask[2] = systemReadJoypad(2);
gbJoymask[3] = systemReadJoypad(3);
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
}
upgrade sound core and GB engine
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} else {
gbJoymask[0] = systemReadJoypad(-1);
}
}
int newmask = gbJoymask[0] & 255;
if(gbRomType == 0x22) {
systemUpdateMotionSensor();
}
if(newmask)
{
gbMemory[0xff0f] = register_IF |= 16;
}
newmask = (gbJoymask[0] >> 10);
speedup = (newmask & 1) ? true : false;
gbCapture = (newmask & 2) ? true : false;
if(gbCapture && !gbCapturePrevious) {
optimizations from dancinninja
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++gbCaptureNumber;
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systemScreenCapture(gbCaptureNumber);
}
gbCapturePrevious = gbCapture;
if(gbFrameSkipCount >= framesToSkip) {
if(!gbSgbMask)
{
if (gbBorderOn)
gbSgbRenderBorder();
//if (gbScreenOn)
systemDrawScreen();
}
gbFrameSkipCount = 0;
} else
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbFrameSkipCount;
upgrade sound core and GB engine
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} else {
// go the the OAM being accessed mode
gbLcdTicksDelayed += GBLCD_MODE_2_CLOCK_TICKS;
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
gbLcdModeDelayed = 2;
upgrade sound core and GB engine
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gbInt48Signal &= ~3;
}
}
break;
case 1:
{
// V-Blank
// next mode is OAM being accessed mode
// gbScreenOn = true;
oldRegister_WY = register_WY;
gbLcdTicksDelayed += GBLCD_MODE_2_CLOCK_TICKS;
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
gbLcdModeDelayed = 2;
upgrade sound core and GB engine
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// reset the window line
gbWindowLine = -1;
}
break;
case 2:
{
// OAM being accessed mode
// next mode is OAM and VRAM in use
gbLcdTicksDelayed += GBLCD_MODE_3_CLOCK_TICKS+gbSpritesTicks[299];
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
gbLcdModeDelayed = 3;
upgrade sound core and GB engine
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}
break;
case 3:
{
// OAM and VRAM in use
// next mode is H-Blank
if((register_LY < 144) && (register_LCDC & 0x80) && gbScreenOn) {
if(!gbSgbMask) {
if(gbFrameSkipCount >= framesToSkip) {
if (!gbBlackScreen)
{
gbRenderLine();
gbDrawSprites(true);
}
else if (gbBlackScreen)
{
u16 color = gbColorOption ? gbColorFilter[0] : 0;
if (!gbCgbMode)
color = gbColorOption ? gbColorFilter[gbPalette[3] & 0x7FFF] :
gbPalette[3] & 0x7FFF;
optimizations from dancinninja
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int i = 160-4;
do{
gbLineMix[i ] =
gbLineMix[i+1] =
gbLineMix[i+2] =
gbLineMix[i+3] = color;
gbLineBuffer[i] =
gbLineBuffer[i+1] =
gbLineBuffer[i+2] =
gbLineBuffer[i+3] = 0;
i-=4;
}while(i >= 0);
upgrade sound core and GB engine
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}
gbDrawLine();
}
}
}
gbLcdTicksDelayed += GBLCD_MODE_0_CLOCK_TICKS-gbSpritesTicks[299];
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
gbLcdModeDelayed = 0;
upgrade sound core and GB engine
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}
break;
}
}
if ((gbLcdLYIncrementTicksDelayed <= 0) && (gbLYChangeHappened == true))
{
gbLYChangeHappened = false;
if (!((gbLcdMode != 1) && (register_LY==0)))
{
{
gbInt48Signal &= ~8;
gbCompareLYToLYC();
if ((gbInt48Signal == 8) && (!((register_LY == 0) && (gbHardware & 1))))
gbInterruptLaunched |= 2;
if ((gbHardware & (gbSpeed ? 8 : 2)) && (register_LY==0) && ((register_STAT & 0x44) == 0x44) && (gbLcdLYIncrementTicksDelayed==0))
{
gbInterruptWait = 1;
}
}
}
gbLcdLYIncrementTicksDelayed += GBLY_INCREMENT_CLOCK_TICKS;
Update r154 broke mono GB games. This fixes them, but means issue 70 is now only half fixed. So... mono gameboy games all work, and colorised games sort of work, but have random background tiles in the wrong palette. I'll have to continue fixing issue 70 later. Sorry for breaking something before.
2009-03-20 13:20:24 +01:00
if (gbLcdModeDelayed == 1)
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
{
if(register_LY == 153)
gbLcdLYIncrementTicksDelayed -= GBLY_INCREMENT_CLOCK_TICKS - gbLine99Ticks;
else if(register_LY == 0)
gbLcdLYIncrementTicksDelayed += GBLY_INCREMENT_CLOCK_TICKS - gbLine99Ticks;
}
gbMemory[0xff0f] = register_IF;
gbMemory[0xff41] = register_STAT;
}
}
gbMemory[0xff0f] = register_IF;
gbMemory[0xff41] = register_STAT = (register_STAT & 0xfc) | gbLcdModeDelayed;
}
else
{
// Used to update the screen with white lines when it's off.
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
// (it looks strange, but it's kinda accurate)
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
// You can try the Mario Demo Vx.x for exemple
// (check the bottom 2 lines while moving)
if (!gbWhiteScreen)
{
gbScreenTicks -= clockTicks;
gbLcdLYIncrementTicks -= clockTicks;
while (gbLcdLYIncrementTicks <=0)
{
register_LY = ((register_LY+1)%154);
gbLcdLYIncrementTicks+=GBLY_INCREMENT_CLOCK_TICKS;
}
if (gbScreenTicks <= 0)
{
gbWhiteScreen = 1;
u8 register_LYLcdOff = ((register_LY+154)%154);
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
for (register_LY=0;register_LY <= 0x90;++register_LY)
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
{
u16 color = gbColorOption ? gbColorFilter[0x7FFF] :
0x7FFF;
if (!gbCgbMode)
color = gbColorOption ? gbColorFilter[gbPalette[0] & 0x7FFF] :
gbPalette[0] & 0x7FFF;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
int i = 160 - 4;
do{
gbLineMix[i ] =
gbLineMix[i+1] =
gbLineMix[i+2] =
gbLineMix[i+3] = color;
gbLineBuffer[i] =
gbLineBuffer[i+1] =
gbLineBuffer[i+2] =
gbLineBuffer[i+3] = 0;
i-=4;
}while(i >= 0);
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbDrawLine();
}
register_LY = register_LYLcdOff;
}
}
if (gbWhiteScreen)
{
gbLcdLYIncrementTicks -= clockTicks;
while (gbLcdLYIncrementTicks <=0)
{
register_LY = ((register_LY+1)%154);
gbLcdLYIncrementTicks+=GBLY_INCREMENT_CLOCK_TICKS;
if (register_LY<144)
{
u16 color = gbColorOption ? gbColorFilter[0x7FFF] :
0x7FFF;
if (!gbCgbMode)
color = gbColorOption ? gbColorFilter[gbPalette[0] & 0x7FFF] :
gbPalette[0] & 0x7FFF;
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
int i = 160 - 4;
do{
gbLineMix[i ] =
gbLineMix[i+1] =
gbLineMix[i+2] =
gbLineMix[i+3] = color;
gbLineBuffer[i] =
gbLineBuffer[i+1] =
gbLineBuffer[i+2] =
gbLineBuffer[i+3] = 0;
i-=4;
}while(i >= 0);
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbDrawLine();
}
else if ((register_LY==144) && (!systemFrameSkip))
{
int framesToSkip = systemFrameSkip;
if(speedup)
framesToSkip = 9; // try 6 FPS during speedup
if((gbFrameSkipCount >= framesToSkip) || (gbWhiteScreen == 1)) {
gbWhiteScreen = 2;
if(!gbSgbMask)
{
if (gbBorderOn)
gbSgbRenderBorder();
//if (gbScreenOn)
systemDrawScreen();
}
}
if(systemReadJoypads()) {
// read joystick
if(gbSgbMode && gbSgbMultiplayer) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
gbJoymask[0] = systemReadJoypad(0);
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbJoymask[1] = systemReadJoypad(1);
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
if(gbSgbFourPlayers) {
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbJoymask[2] = systemReadJoypad(2);
gbJoymask[3] = systemReadJoypad(3);
}
} else {
gbJoymask[0] = systemReadJoypad(-1);
}
}
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbFrameCount;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
systemFrame();
if((gbFrameCount % 10) == 0)
system10Frames(60);
if(gbFrameCount >= 60) {
u32 currentTime = systemGetClock();
if(currentTime != gbLastTime)
systemShowSpeed(100000/(currentTime - gbLastTime));
else
systemShowSpeed(0);
gbLastTime = currentTime;
gbFrameCount = 0;
}
}
}
}
}
gbMemory[0xff41] = register_STAT;
// serial emulation
if(gbSerialOn) {
#ifdef LINK_EMULATION
if(linkConnected) {
gbSerialTicks -= clockTicks;
while(gbSerialTicks <= 0) {
// increment number of shifted bits
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbSerialBits;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
linkProc();
if(gbSerialOn && (gbMemory[0xff02] & 1)) {
if(gbSerialBits == 8) {
gbSerialBits = 0;
gbMemory[0xff01] = 0xff;
gbMemory[0xff02] &= 0x7f;
gbSerialOn = 0;
gbMemory[0xff0f] = register_IF |= 8;
gbSerialTicks = 0;
}
}
gbSerialTicks += GBSERIAL_CLOCK_TICKS;
}
} else {
#endif
if(gbMemory[0xff02] & 1) {
gbSerialTicks -= clockTicks;
// overflow
while(gbSerialTicks <= 0) {
// shift serial byte to right and put a 1 bit in its place
// gbMemory[0xff01] = 0x80 | (gbMemory[0xff01]>>1);
// increment number of shifted bits
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++gbSerialBits;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
if(gbSerialBits == 8) {
// end of transmission
if(gbSerialFunction) // external device
gbMemory[0xff01] = gbSerialFunction(gbMemory[0xff01]);
else
gbMemory[0xff01] = 0xff;
gbSerialTicks = 0;
gbMemory[0xff02] &= 0x7f;
gbSerialOn = 0;
gbMemory[0xff0f] = register_IF |= 8;
gbSerialBits = 0;
} else
gbSerialTicks += GBSERIAL_CLOCK_TICKS;
}
}
#ifdef LINK_EMULATION
}
#endif
}
soundTicks -= clockTicks;
if ( !gbSpeed )
soundTicks -= clockTicks;
while(soundTicks < 0) {
soundTicks += SOUND_CLOCK_TICKS;
gbSoundTick();
}
// timer emulation
if(gbTimerOn) {
gbTimerTicks= ((gbInternalTimer) & gbTimerMask[gbTimerMode])+1-clockTicks;
while(gbTimerTicks <= 0) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
++register_TIMA;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
// timer overflow!
if((register_TIMA & 0xff) == 0) {
// reload timer modulo
register_TIMA = register_TMA;
// flag interrupt
gbMemory[0xff0f] = register_IF |= 4;
}
gbTimerTicks += gbTimerClockTicks;
}
gbTimerOnChange = false;
gbTimerModeChange = false;
gbMemory[0xff05] = register_TIMA;
}
gbInternalTimer -= clockTicks;
while (gbInternalTimer<0)
gbInternalTimer+=0x100;
clockTicks = 0;
if (gbIntBreak == 1)
{
gbIntBreak = 0;
if ((register_IE & register_IF & gbInterruptLaunched & 0x3) &&
((IFF & 0x81) == 1) && (!gbInterruptWait) && (execute))
{
gbIntBreak = 2;
PC.W = oldPCW;
execute = false;
gbOldClockTicks = 0;
}
if (gbOldClockTicks)
{
clockTicks = gbOldClockTicks;
gbOldClockTicks = 0;
goto gbRedoLoop;
}
}
// Executes the opcode(s), and apply the instruction's remaining clockTicks (if any).
if (execute)
{
switch(opcode1) {
case 0xCB:
// extended opcode
switch(opcode2) {
#include "gbCodesCB.h"
}
break;
#include "gbCodes.h"
}
execute = false;
if (clockTicks)
{
gbDmaTicks += clockTicks;
clockTicks = 0;
}
}
if (gbDmaTicks)
{
clockTicks = gbGetNextEvent(gbDmaTicks);
if (clockTicks<=gbDmaTicks)
gbDmaTicks -= clockTicks;
else
{
clockTicks = gbDmaTicks;
gbDmaTicks = 0;
}
goto gbRedoLoop;
}
// Remove the 'if an IE is pending' flag if IE has finished being executed.
if ((IFF & 0x40) && !(IFF & 0x30))
IFF &= 0x81;
if ((register_IE & register_IF & 0x1f) && (IFF & 0x81) && (!gbInterruptWait))
{
if (IFF & 1)
{
// Add 5 ticks for the interrupt execution time
gbDmaTicks += 5;
if (gbIntBreak == 2)
{
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
--gbDmaTicks;
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbIntBreak = 0;
}
if(register_IF & register_IE & 1)
gbVblank_interrupt();
else if(register_IF & register_IE & 2)
gbLcd_interrupt();
else if(register_IF & register_IE & 4)
gbTimer_interrupt();
else if(register_IF & register_IE & 8)
gbSerial_interrupt();
else if(register_IF & register_IE & 16)
gbJoypad_interrupt();
}
IFF &= ~0x81;
}
if (IFF & 0x08)
IFF &=~0x79;
// Used to apply the interrupt's execution time.
if (gbDmaTicks)
{
clockTicks = gbGetNextEvent(gbDmaTicks);
if (clockTicks<=gbDmaTicks)
gbDmaTicks -= clockTicks;
else
{
clockTicks = gbDmaTicks;
gbDmaTicks = 0;
}
goto gbRedoLoop;
}
gbBlackScreen = false;
if((ticksToStop <= 0)) {
if(!(register_LCDC & 0x80)) {
if(systemReadJoypads()) {
// read joystick
if(gbSgbMode && gbSgbMultiplayer) {
optimizations from dancinninja
2010-01-24 19:26:31 +01:00
gbJoymask[0] = systemReadJoypad(0);
gbJoymask[1] = systemReadJoypad(1);
if(gbSgbFourPlayers) {
upgrade sound core and GB engine
2008-10-18 08:49:04 +02:00
gbJoymask[2] = systemReadJoypad(2);
gbJoymask[3] = systemReadJoypad(3);
}
} else {
gbJoymask[0] = systemReadJoypad(-1);
}
}
}
return;
}
}
}
struct EmulatedSystem GBSystem = {
// emuMain
gbEmulate,
// emuReset
gbReset,
// emuCleanUp
gbCleanUp,
// emuReadBattery
gbReadBatteryFile,
// emuWriteBattery
gbWriteBatteryFile,
// emuReadState
gbReadSaveState,
// emuWriteState
gbWriteSaveState,
// emuReadMemState
gbReadMemSaveState,
// emuWriteMemState
gbWriteMemSaveState,
// emuWritePNG
gbWritePNGFile,
// emuWriteBMP
gbWriteBMPFile,
// emuUpdateCPSR
NULL,
// emuHasDebugger
false,
// emuCount
#ifdef FINAL_VERSION
70000/4,
#else
1000,
#endif
};
/****************************************************************************
* Nintendo Wii/Gamecube Port Additions
*
* Duplicate versions of save functions above, using memory
* I want to kill whoever wrote so many stupid functions, and did so without
* doing it memory-based
* Tantric - October 2008
***************************************************************************/
int MemgbWriteSaveMBC1(char * membuffer) {
if (gbRam) {
memcpy(membuffer, gbRam, (gbRamSizeMask + 1));
return (gbRamSizeMask + 1);
}
return 0;
}
int MemgbWriteSaveMBC2(char * membuffer) {
if (gbRam) {
memcpy(membuffer, &gbMemory[0xa000], 256);
return 256;
}
return 0;
}
int MemgbWriteSaveMBC3(char * membuffer, bool extendedSave) {
int offset = 0;
if (gbRam || extendedSave) {
if (gbRam) {
memcpy(membuffer, gbRam, (gbRamSizeMask + 1));
offset += (gbRamSizeMask + 1);
}
if (extendedSave)
{
memcpy(membuffer+offset, &gbDataMBC3.mapperSeconds, (10 * sizeof(int)
+ sizeof(time_t)));
offset += (10 * sizeof(int) + sizeof(time_t));
}
}
return offset;
}
int MemgbWriteSaveMBC5(char * membuffer) {
if (gbRam) {
memcpy(membuffer, gbRam, (gbRamSizeMask + 1));
return (gbRamSizeMask + 1);
}
return 0;
}
int MemgbWriteSaveMBC7(char * membuffer) {
if (gbRam) {
memcpy(membuffer, &gbMemory[0xa000], 256);
return 256;
}
return 0;
}
int MemgbWriteSaveTAMA5(char * membuffer, bool extendedSave) {
int offset = 0;
if (gbRam)
{
memcpy(membuffer, gbRam, (gbRamSizeMask + 1));
offset += (gbRamSizeMask + 1);
}
memcpy(membuffer+offset, gbTAMA5ram, (gbTAMA5ramSize));
offset += (gbTAMA5ramSize);
if (extendedSave)
{
memcpy(membuffer+offset, &gbDataTAMA5.mapperSeconds, (14 * sizeof(int) + sizeof(time_t)));
offset += (14 * sizeof(int) + sizeof(time_t));
}
return offset;
}
int MemgbWriteSaveMMM01(char * membuffer) {
if (gbRam) {
memcpy(membuffer, gbRam, (gbRamSizeMask + 1));
return (gbRamSizeMask + 1);
}
return 0;
}
bool MemgbReadSaveMBC1(char * membuffer, int read) {
if (gbRam)
{
if (read != (gbRamSizeMask + 1))
return false;
else
memcpy(gbRam, membuffer, read);
return true;
}
return false;
}
bool MemgbReadSaveMBC2(char * membuffer, int read) {
if (gbRam)
{
if (read != 256)
return false;
else
memcpy(&gbMemory[0xa000], membuffer, read);
return true;
}
return false;
}
bool MemgbReadSaveMBC3(char * membuffer, int read) {
int offset = 0;
if (gbRam)
{
if(read < (gbRamSizeMask + 1))
return false;
memcpy(gbRam, membuffer, (gbRamSizeMask + 1));
offset += (gbRamSizeMask + 1);
}
int gbRomType = gbRom[0x147];
if ((gbRomType == 0xf) || (gbRomType == 0x10))
{
if((uint)read < (offset + sizeof(int) * 10 + sizeof(time_t)))
return false;
memcpy(&gbDataMBC3.mapperSeconds, membuffer+offset, sizeof(int) * 10 + sizeof(time_t));
}
return true;
}
bool MemgbReadSaveMBC5(char * membuffer, int read) {
if (gbRam)
{
if (read != (gbRamSizeMask + 1))
return false;
else
memcpy(gbRam, membuffer, read);
return true;
}
return false;
}
bool MemgbReadSaveMBC7(char * membuffer, int read) {
if (gbRam)
{
if (read != 256)
return false;
else
memcpy(&gbMemory[0xa000], membuffer, read);
return true;
}
return false;
}
bool MemgbReadSaveTAMA5(char * membuffer, int read) {
if (gbRam)
{
if (gbRamSizeMask + gbTAMA5ramSize + 1)
return false;
memcpy(gbRam, membuffer, (gbRamSizeMask + 1));
int offset = (gbRamSizeMask + 1);
memcpy(&gbDataTAMA5.mapperSeconds, membuffer+offset, sizeof(int) * 14 + sizeof(time_t));
return true;
}
return false;
}
bool MemgbReadSaveMMM01(char * membuffer, int read) {
if (gbRam)
{
if (read != (gbRamSizeMask + 1))
return false;
else
memcpy(gbRam, membuffer, read);
return true;
}
return false;
}
int MemgbWriteBatteryFile(char * membuffer)
{
int result = 0;
if(gbBattery)
{
int type = gbRom[0x147];
bool extendedSave = true;
switch(type)
{
case 0x03:
result = MemgbWriteSaveMBC1(membuffer);
break;
case 0x06:
result = MemgbWriteSaveMBC2(membuffer);
break;
case 0x0d:
result = MemgbWriteSaveMMM01(membuffer);
break;
case 0x0f:
case 0x10:
result = MemgbWriteSaveMBC3(membuffer, extendedSave);
break;
case 0x13:
case 0xfc:
result = MemgbWriteSaveMBC3(membuffer, false);
case 0x1b:
case 0x1e:
result = MemgbWriteSaveMBC5(membuffer);
break;
case 0x22:
result = MemgbWriteSaveMBC7(membuffer);
break;
case 0xfd:
result = MemgbWriteSaveTAMA5(membuffer, extendedSave);
break;
case 0xff:
result = MemgbWriteSaveMBC1(membuffer);
break;
}
}
return result;
}
bool MemgbReadBatteryFile(char * membuffer, int read)
{
bool res = false;
if (gbBattery) {
int type = gbRom[0x147];
switch (type) {
case 0x03:
res = MemgbReadSaveMBC1(membuffer, read);
break;
case 0x06:
res = MemgbReadSaveMBC2(membuffer, read);
break;
case 0x0d:
res = MemgbReadSaveMMM01(membuffer, read);
break;
case 0x0f:
case 0x10:
res = MemgbReadSaveMBC3(membuffer, read);
if (!res) {
time(&gbDataMBC3.mapperLastTime);
struct tm *lt;
lt = localtime(&gbDataMBC3.mapperLastTime);
gbDataMBC3.mapperSeconds = lt->tm_sec;
gbDataMBC3.mapperMinutes = lt->tm_min;
gbDataMBC3.mapperHours = lt->tm_hour;
gbDataMBC3.mapperDays = lt->tm_yday & 255;
gbDataMBC3.mapperControl = (gbDataMBC3.mapperControl & 0xfe)
| (lt->tm_yday > 255 ? 1 : 0);
res = 0;
break;
}
break;
case 0x13:
case 0xfc:
res = MemgbReadSaveMBC3(membuffer, read);
break;
case 0x1b:
case 0x1e:
res = MemgbReadSaveMBC5(membuffer, read);
break;
case 0x22:
res = MemgbReadSaveMBC7(membuffer, read);
break;
case 0xfd:
res = MemgbReadSaveTAMA5(membuffer, read);
if (!res) {
u8 gbDaysinMonth[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30,
31, 30, 31 };
time(&gbDataTAMA5.mapperLastTime);
struct tm *lt;
lt = localtime(&gbDataTAMA5.mapperLastTime);
gbDataTAMA5.mapperSeconds = lt->tm_sec;
gbDataTAMA5.mapperMinutes = lt->tm_min;
gbDataTAMA5.mapperHours = lt->tm_hour;
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears = 1970;
int days = lt->tm_yday + 365 * 3;
while (days) {
gbDataTAMA5.mapperDays++;
days--;
if (gbDataTAMA5.mapperDays
> gbDaysinMonth[gbDataTAMA5.mapperMonths - 1]) {
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths++;
if (gbDataTAMA5.mapperMonths > 12) {
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears++;
if ((gbDataTAMA5.mapperYears & 3) == 0)
gbDaysinMonth[1] = 29;
else
gbDaysinMonth[1] = 28;
}
}
}
gbDataTAMA5.mapperControl = (gbDataTAMA5.mapperControl & 0xfe)
| (lt->tm_yday > 255 ? 1 : 0);
res = false;
break;
}
break;
case 0xff:
res = MemgbReadSaveMBC1(membuffer, read);
break;
}
}
systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
return res;
}
Reference in New Issue Copy Permalink