mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-27 11:41:48 +01:00
fixed backup memory support in Bill Walsh College Football (this game uses I2C EEPROM saves)
modified Action replay (Pro) memory map
This commit is contained in:
ekeeke31
parent
8834abaa74
commit
f2e43c9f8f
@ -35,12 +35,14 @@ static struct
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uint32 addr[4];
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} action_replay;
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static void ar_write_regs(uint32 address, uint32 data);
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static void wram_write_byte(uint32 address, uint32 data);
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static void wram_write_word(uint32 address, uint32 data);
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static void ar_write_regs(uint32 address, uint32 data);
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static void ar_write_regs_pro2(uint32 address, uint32 data);
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void datel_init(void)
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{
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int i;
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memset(&action_replay,0,sizeof(action_replay));
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/* load Action Replay ROM program */
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@ -61,22 +63,52 @@ void datel_init(void)
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switch (action_replay.enabled)
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{
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case TYPE_AR:
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{
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/* internal registers mapped at $0000-$ffff */
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m68k_memory_map[0x01].write16 = ar_write_regs;
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/* $0000-$7fff mirrored into $8000-$ffff */
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memcpy(action_replay.rom+0x8000,action_replay.rom,0x8000);
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m68k_memory_map[1].write16 = ar_write_regs;
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break;
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}
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case TYPE_PRO1:
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m68k_memory_map[1].write16 = ar_write_regs;
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break;
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{
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/* internal registers mapped at $0000-$ffff */
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m68k_memory_map[0x01].write16 = ar_write_regs;
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case TYPE_PRO2: /* todo */
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/* RAM (64k) mapped at $400000-$7fffff */
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for (i=0x40; i<0x80; i++)
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{
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m68k_memory_map[i].base = action_replay.ram;
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m68k_memory_map[i].read8 = NULL;
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m68k_memory_map[i].read16 = NULL;
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m68k_memory_map[i].write8 = NULL;
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m68k_memory_map[i].write16 = NULL;
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}
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break;
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}
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case TYPE_PRO2:
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{
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/* internal registers mapped at $100000-$10ffff */
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m68k_memory_map[0x10].write16 = ar_write_regs_pro2;
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/* RAM (64k) mapped at $400000-$7fffff */
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for (i=0x40; i<0x80; i++)
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{
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m68k_memory_map[i].base = action_replay.ram;
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m68k_memory_map[i].read8 = NULL;
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m68k_memory_map[i].read16 = NULL;
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m68k_memory_map[i].write8 = NULL;
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m68k_memory_map[i].write16 = NULL;
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}
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break;
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}
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}
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#ifdef LSB_FIRST
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/* Byteswap ROM */
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int i;
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uint8 temp;
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for(i = 0; i < 0x20000; i += 2)
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{
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@ -100,31 +132,29 @@ void datel_reset(void)
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memset(action_replay.data,0,sizeof(action_replay.data));
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memset(action_replay.addr,0,sizeof(action_replay.addr));
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/* reset memory map */
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/* ROM mapped at $000000-$3fffff */
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int i;
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switch (action_replay.enabled)
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{
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case TYPE_AR:
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m68k_memory_map[0].base = action_replay.rom;
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{
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case TYPE_AR: /* 32k ROM */
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case TYPE_PRO2: /* 64k ROM */
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{
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for (i=0x00; i<0x40; i++)
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{
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m68k_memory_map[i].base = action_replay.rom;
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}
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break;
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}
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case TYPE_PRO1:
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m68k_memory_map[0].base = action_replay.rom;
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m68k_memory_map[1].base = action_replay.rom + 0x10000;
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m68k_memory_map[0x42].base = action_replay.ram;
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m68k_memory_map[0x42].read8 = NULL;
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m68k_memory_map[0x42].read16 = NULL;
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m68k_memory_map[0x42].write8 = NULL;
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m68k_memory_map[0x42].write16 = NULL;
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break;
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case TYPE_PRO2:
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m68k_memory_map[0].base = action_replay.rom;
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m68k_memory_map[0x60].base = action_replay.ram;
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m68k_memory_map[0x60].read8 = NULL;
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m68k_memory_map[0x60].read16 = NULL;
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m68k_memory_map[0x60].write8 = NULL;
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m68k_memory_map[0x60].write16 = NULL;
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case TYPE_PRO1: /* 128k ROM */
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{
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for (i=0x00; i<0x40; i+=2)
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{
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m68k_memory_map[i].base = action_replay.rom;
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m68k_memory_map[i+1].base = action_replay.rom + 0x10000;
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}
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break;
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}
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}
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}
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}
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@ -167,8 +197,8 @@ void datel_switch(uint8 enable)
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/* set RAM write handlers */
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for (i=0xe0; i<0x100; i++)
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{
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m68k_memory_map[i].write8 = wram_write_byte;
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m68k_memory_map[i].write16 = wram_write_word;
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m68k_memory_map[i].write8 = wram_write_byte;
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m68k_memory_map[i].write16 = wram_write_word;
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}
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}
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else
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@ -250,8 +280,18 @@ static void ar_write_regs(uint32 address, uint32 data)
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action_replay.addr[2] = (action_replay.regs[8] | ((action_replay.regs[9] & 0x7f00) << 8)) << 1;
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action_replay.addr[3] = (action_replay.regs[11] | ((action_replay.regs[12] & 0x7f00) << 8)) << 1;
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/* reads are mapped to Cartridge ROM */
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/* Cartridge ROM mapped to $000000-$3fffff */
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/* NOTE: codes should be disabled on startup */
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m68k_memory_map[0].base = cart.rom;
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int i;
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for (i=0x00; i<0x40; i++)
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{
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m68k_memory_map[i].base = cart.rom + ((i<<16) & cart.mask);
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}
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}
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}
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static void ar_write_regs_pro2(uint32 address, uint32 data)
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{
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/* TODO */
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}
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@ -21,7 +21,7 @@
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#include "shared.h"
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#define GAME_CNT 25
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#define GAME_CNT 26
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T_EEPROM eeprom;
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@ -49,8 +49,9 @@ static const T_GAME_ENTRY database[GAME_CNT] =
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{{"T-81476" }, 0, {16, 0x1FFF, 0x1FFF, 0x200001, 0x200001, 0x200000, 0, 0, 0}}, /* Frank Thomas Big Hurt Baseball */
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/* EA mapper (24C01 only) */
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{{"T-50396" }, 0, {7, 0x7F, 0x7F, 0x200001, 0x200001, 0x200001, 7, 7, 6}}, /* NHLPA Hockey 93 (UE) */
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{{"T-50176" }, 0, {7, 0x7F, 0x7F, 0x200001, 0x200001, 0x200001, 7, 7, 6}}, /* Rings of Power */
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{{"T-50396" }, 0, {7, 0x7F, 0x7F, 0x200001, 0x200001, 0x200001, 7, 7, 6}}, /* NHLPA Hockey 93 */
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{{"T-50606" }, 0, {7, 0x7F, 0x7F, 0x200001, 0x200001, 0x200001, 7, 7, 6}}, /* Bill Walsh College Football */
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/* SEGA mapper (24C01 only) */
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{{"T-12046" }, 0, {7, 0x7F, 0x7F, 0x200001, 0x200001, 0x200001, 0, 0, 1}}, /* Megaman - The Wily Wars */
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@ -3,8 +3,8 @@
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*
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* IPL FONT Engine, using GX hardware
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*
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* Softdev (2006)
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* Eke-Eke (2007,2008,2009)
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* original font engine by Softdev (2006)
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* GX engine by Eke-Eke (2008,2009)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -75,7 +75,7 @@ int FONT_Init(void)
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/* default font height */
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fheight = fontHeader->cell_height;
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/* initialize texture data */
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fontTexture = memalign(32, fontHeader->cell_width * fontHeader->cell_height / 2);
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if (!fontTexture)
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@ -623,7 +623,7 @@ static INT32 m2,c1,c2; /* Phase Modulation input for operators 2,3,4 */
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static INT32 mem; /* one sample delay memory */
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static INT32 out_fm[8]; /* outputs of working channels */
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/* limitter */
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/* limiter */
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#define Limit(val, max,min) { \
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if ( val > max ) val = max; \
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else if ( val < min ) val = min; \
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@ -1021,8 +1021,8 @@ INLINE void advance_lfo()
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/* when LFO is disabled, current level is held (fix Spider-Man & Venom : Separation Anxiety) */
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/*else
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{
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LFO_AM = 0;
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LFO_PM = 0;
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ym2612.OPN.LFO_AM = 0;
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ym2612.OPN.LFO_PM = 0;
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}*/
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}
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@ -1490,6 +1490,8 @@ static int init_tables(void)
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n = n>>1;
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/* 11 bits here (rounded) */
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n <<= 2; /* 13 bits here (as in real chip) */
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/* 14 bits (with sign bit) */
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tl_tab[ x*2 + 0 ] = n;
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tl_tab[ x*2 + 1 ] = -tl_tab[ x*2 + 0 ];
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@ -1615,7 +1617,7 @@ static void OPNSetPres(int pres)
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/* YM2612 running at original frequency (~53267 Hz) */
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if (config.hq_fm) freqbase = 1.0;
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ym2612.OPN.eg_timer_add = (UINT32)((1<<EG_SH) * freqbase);
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ym2612.OPN.eg_timer_add = (UINT32)((1<<EG_SH) * freqbase);
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ym2612.OPN.eg_timer_overflow = ( 3 ) * (1<<EG_SH);
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/* timer increment in usecs (timers are incremented after each updated samples) */
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@ -2071,8 +2073,8 @@ int YM2612ResetChip(void)
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ym2612.OPN.LFO_AM = 0;
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ym2612.OPN.LFO_PM = 0;
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ym2612.OPN.ST.TAC = 0;
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ym2612.OPN.ST.TBC = 0;
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ym2612.OPN.ST.TAC = 0;
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ym2612.OPN.ST.TBC = 0;
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OPNWriteMode(0x27,0x30);
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OPNWriteMode(0x26,0x00);
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@ -102,8 +102,8 @@ void audio_update (int size)
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if (filter & 1)
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{
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/* single-pole low-pass filter (6 dB/octave) */
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ll = (ll>>16)*factorb + l*factora;
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rr = (rr>>16)*factorb + r*factora;
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ll = (ll>>16)*factora + l*factorb;
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rr = (rr>>16)*factora + r*factorb;
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l = ll >> 16;
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r = rr >> 16;
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}
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@ -85,7 +85,6 @@ extern uint32 count_z80;
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extern uint32 line_z80;
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extern int32 current_z80;
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extern uint8 system_hw;
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extern uint32 count_z80;
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/* Function prototypes */
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extern int audio_init (int rate);
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