Genesis-Plus-GX/source/vdp_ctrl.h
ekeeke31 ab4638144c [Core/VDP]
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* added support for Master System compatibility mode (Z80 ports access mode), incl. Mode 5 rendering.
* added Mode 4 rendering for both Genesis & Master System modes.
* added alternate BG planes rendering functions (should be faster on PPC architectures).

[Core/IO]
---------------
* added support for Master System compatibility mode (Z80 ports access mode).
* added Master System peripherals emulation (Control Pad, Paddle, Sports Pad & Light Phaser).
* added XE-1AP (analog controller) emulation.
* added Activator emulation.

[Core/Extra]
---------------
* added support for all known Master System cartridge mappers.
* added copy-protection hardware emulation for a few MD unlicensed games: fixes 777 Casino (crash when talking to bunny girls).
(NB: most of those unlicensed games seem to have been already patched by ROM dumpers, main purpose is documenting them)
* added support for Top Shooter arcade board controller. (A=Shoot, B=Bet, C/RIGHT=Coins, START=Start, hold UP on startup to enter service mode)
* improved King of Fighters 98 mapper emulation (registers address decoding is now 100% accurate)
* fixed Game Genie when several codes affect same ROM address.
* fixed EEPROM types for Brian Lara Cricket & NBA Jam TE (verified on real cartridges)

[Core/General]
---------------
* added Master System compatibility mode emulation (automatically enabled when loading ROM file with .sms extension).
* improved savestate stability & compatibility (support for old 1.4.x savestates is preserved)
* various code cleanup & comments.

[Gamecube/Wii]
---------------
* fixed cheat codes handling when several codes affect same ROM address.
* improved input controller detection on menu exit.
* improved key remapping dialog box to match emulated device
* changed Menu key for Gamecube controller to allow MODE button mapping
* fixed DVD not being unmounted on swap (memory leak)

[Wii only]
---------------
* added USB mouse support for Sega Mouse emulation
* compiled with latest libogc: improves USB compatibility & fixes stability issues with Wiimotes.
2011-03-31 22:11:05 +00:00

87 lines
2.9 KiB
C

/***************************************************************************************
* Genesis Plus
* Video Display Processor (68k & Z80 CPU interface)
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
* Eke-Eke (2007-2011), additional code & fixes for the GCN/Wii port
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
****************************************************************************************/
#ifndef _VDP_H_
#define _VDP_H_
/* VDP context */
extern uint8 reg[0x20];
extern uint8 sat[0x400];
extern uint8 vram[0x10000];
extern uint8 cram[0x80];
extern uint8 vsram[0x80];
extern uint8 hint_pending;
extern uint8 vint_pending;
extern uint8 m68k_irq_state;
extern uint16 status;
extern uint32 dma_length;
/* Global variables */
extern uint16 ntab;
extern uint16 ntbb;
extern uint16 ntwb;
extern uint16 satb;
extern uint16 hscb;
extern uint8 bg_name_dirty[0x800];
extern uint16 bg_name_list[0x800];
extern uint16 bg_list_index;
extern uint8 bg_pattern_cache[0x80000];
extern uint8 hscroll_mask;
extern uint8 playfield_shift;
extern uint8 playfield_col_mask;
extern uint16 playfield_row_mask;
extern uint8 odd_frame;
extern uint8 im2_flag;
extern uint8 interlaced;
extern uint8 vdp_pal;
extern uint16 v_counter;
extern uint16 vc_max;
extern uint16 hscroll;
extern uint16 vscroll;
extern uint16 lines_per_frame;
extern int32 fifo_write_cnt;
extern uint32 fifo_lastwrite;
extern uint32 hvc_latch;
extern const uint8 *hctab;
/* Function pointers */
extern void (*vdp_68k_data_w)(unsigned int data);
extern void (*vdp_z80_data_w)(unsigned int data);
extern unsigned int (*vdp_68k_data_r)(void);
extern unsigned int (*vdp_z80_data_r)(void);
/* Function prototypes */
extern void vdp_init(void);
extern void vdp_reset(void);
extern int vdp_context_save(uint8 *state);
extern int vdp_context_load(uint8 *state, char *version);
extern void vdp_dma_update(unsigned int cycles);
extern void vdp_68k_ctrl_w(unsigned int data);
extern void vdp_z80_ctrl_w(unsigned int data);
extern unsigned int vdp_ctrl_r(unsigned int cycles);
extern unsigned int vdp_hvc_r(unsigned int cycles);
extern void vdp_test_w(unsigned int data);
extern int vdp_68k_irq_ack(int int_level);
#endif /* _VDP_H_ */