LayerOne / LayerOne2017_emu

test

Dependencies:   SDFileSystem mbed-dev

Fork of Nucleo_Ex06_EMU by woodstock .

pNesX.h@0:3dac1f1bc9e0, 2016-04-03 (annotated)

Committer:
beaglescout007
Date:
Sun Apr 03 07:45:29 2016 +0000
Revision:
0:3dac1f1bc9e0
Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
beaglescout007 0:3dac1f1bc9e0 1 /*===================================================================*/
beaglescout007 0:3dac1f1bc9e0 2 /* */
beaglescout007 0:3dac1f1bc9e0 3 /* pNesX.h : NES Emulator for PSX */
beaglescout007 0:3dac1f1bc9e0 4 /* */
beaglescout007 0:3dac1f1bc9e0 5 /* 1999/11/03 Racoon New preparation */
beaglescout007 0:3dac1f1bc9e0 6 /* */
beaglescout007 0:3dac1f1bc9e0 7 /*===================================================================*/
beaglescout007 0:3dac1f1bc9e0 8
beaglescout007 0:3dac1f1bc9e0 9 #ifndef PNESX_H_INCLUDED
beaglescout007 0:3dac1f1bc9e0 10 #define PNESX_H_INCLUDED
beaglescout007 0:3dac1f1bc9e0 11
beaglescout007 0:3dac1f1bc9e0 12 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 13 /* Include files */
beaglescout007 0:3dac1f1bc9e0 14 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 15
beaglescout007 0:3dac1f1bc9e0 16 #include "pNesX_Types.h"
beaglescout007 0:3dac1f1bc9e0 17
beaglescout007 0:3dac1f1bc9e0 18 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 19 /* NES resources */
beaglescout007 0:3dac1f1bc9e0 20 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 21
beaglescout007 0:3dac1f1bc9e0 22 #define RAM_SIZE 0x2000
beaglescout007 0:3dac1f1bc9e0 23 #define SRAM_SIZE 0x2000
beaglescout007 0:3dac1f1bc9e0 24 #define PPURAM_SIZE 0x4000
beaglescout007 0:3dac1f1bc9e0 25 #define SPRRAM_SIZE 256
beaglescout007 0:3dac1f1bc9e0 26
beaglescout007 0:3dac1f1bc9e0 27 /* RAM */
beaglescout007 0:3dac1f1bc9e0 28 extern BYTE RAM[];
beaglescout007 0:3dac1f1bc9e0 29
beaglescout007 0:3dac1f1bc9e0 30 /* SRAM */
beaglescout007 0:3dac1f1bc9e0 31 extern BYTE SRAM[];
beaglescout007 0:3dac1f1bc9e0 32
beaglescout007 0:3dac1f1bc9e0 33 /* ROM */
beaglescout007 0:3dac1f1bc9e0 34 extern BYTE *ROM;
beaglescout007 0:3dac1f1bc9e0 35
beaglescout007 0:3dac1f1bc9e0 36 /* ROM BANK ( 8Kb * 4 ) */
beaglescout007 0:3dac1f1bc9e0 37 extern BYTE *ROMBANK0;
beaglescout007 0:3dac1f1bc9e0 38 extern BYTE *ROMBANK1;
beaglescout007 0:3dac1f1bc9e0 39 extern BYTE *ROMBANK2;
beaglescout007 0:3dac1f1bc9e0 40 extern BYTE *ROMBANK3;
beaglescout007 0:3dac1f1bc9e0 41
beaglescout007 0:3dac1f1bc9e0 42 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 43 /* PPU resources */
beaglescout007 0:3dac1f1bc9e0 44 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 45
beaglescout007 0:3dac1f1bc9e0 46 /* PPU RAM */
beaglescout007 0:3dac1f1bc9e0 47 extern BYTE PPURAM[];
beaglescout007 0:3dac1f1bc9e0 48
beaglescout007 0:3dac1f1bc9e0 49 /* VROM */
beaglescout007 0:3dac1f1bc9e0 50 extern BYTE *VROM;
beaglescout007 0:3dac1f1bc9e0 51
beaglescout007 0:3dac1f1bc9e0 52 /* PPU BANK ( 1Kb * 16 ) */
beaglescout007 0:3dac1f1bc9e0 53 extern BYTE *PPUBANK[];
beaglescout007 0:3dac1f1bc9e0 54
beaglescout007 0:3dac1f1bc9e0 55 #define NAME_TABLE0 8
beaglescout007 0:3dac1f1bc9e0 56 #define NAME_TABLE1 9
beaglescout007 0:3dac1f1bc9e0 57 #define NAME_TABLE2 10
beaglescout007 0:3dac1f1bc9e0 58 #define NAME_TABLE3 11
beaglescout007 0:3dac1f1bc9e0 59
beaglescout007 0:3dac1f1bc9e0 60 #define NAME_TABLE_V_MASK 2
beaglescout007 0:3dac1f1bc9e0 61 #define NAME_TABLE_H_MASK 1
beaglescout007 0:3dac1f1bc9e0 62
beaglescout007 0:3dac1f1bc9e0 63 /* Sprite RAM */
beaglescout007 0:3dac1f1bc9e0 64 extern BYTE SPRRAM[];
beaglescout007 0:3dac1f1bc9e0 65
beaglescout007 0:3dac1f1bc9e0 66 #define SPR_Y 0
beaglescout007 0:3dac1f1bc9e0 67 #define SPR_CHR 1
beaglescout007 0:3dac1f1bc9e0 68 #define SPR_ATTR 2
beaglescout007 0:3dac1f1bc9e0 69 #define SPR_X 3
beaglescout007 0:3dac1f1bc9e0 70 #define SPR_ATTR_COLOR 0x3
beaglescout007 0:3dac1f1bc9e0 71 #define SPR_ATTR_V_FLIP 0x80
beaglescout007 0:3dac1f1bc9e0 72 #define SPR_ATTR_H_FLIP 0x40
beaglescout007 0:3dac1f1bc9e0 73 #define SPR_ATTR_PRI 0x20
beaglescout007 0:3dac1f1bc9e0 74
beaglescout007 0:3dac1f1bc9e0 75 /* PPU Register */
beaglescout007 0:3dac1f1bc9e0 76 extern BYTE PPU_R0;
beaglescout007 0:3dac1f1bc9e0 77 extern BYTE PPU_R1;
beaglescout007 0:3dac1f1bc9e0 78 extern BYTE PPU_R2;
beaglescout007 0:3dac1f1bc9e0 79 extern BYTE PPU_R3;
beaglescout007 0:3dac1f1bc9e0 80 extern BYTE PPU_R7;
beaglescout007 0:3dac1f1bc9e0 81
beaglescout007 0:3dac1f1bc9e0 82 extern BYTE PPU_Scr_V;
beaglescout007 0:3dac1f1bc9e0 83 extern BYTE PPU_Scr_V_Next;
beaglescout007 0:3dac1f1bc9e0 84 extern BYTE PPU_Scr_V_Byte;
beaglescout007 0:3dac1f1bc9e0 85 extern BYTE PPU_Scr_V_Byte_Next;
beaglescout007 0:3dac1f1bc9e0 86 extern BYTE PPU_Scr_V_Bit;
beaglescout007 0:3dac1f1bc9e0 87 extern BYTE PPU_Scr_V_Bit_Next;
beaglescout007 0:3dac1f1bc9e0 88
beaglescout007 0:3dac1f1bc9e0 89 extern BYTE PPU_Scr_H;
beaglescout007 0:3dac1f1bc9e0 90 extern BYTE PPU_Scr_H_Next;
beaglescout007 0:3dac1f1bc9e0 91 extern BYTE PPU_Scr_H_Byte;
beaglescout007 0:3dac1f1bc9e0 92 extern BYTE PPU_Scr_H_Byte_Next;
beaglescout007 0:3dac1f1bc9e0 93 extern BYTE PPU_Scr_H_Bit;
beaglescout007 0:3dac1f1bc9e0 94 extern BYTE PPU_Scr_H_Bit_Next;
beaglescout007 0:3dac1f1bc9e0 95
beaglescout007 0:3dac1f1bc9e0 96 extern BYTE PPU_Latch_Flag;
beaglescout007 0:3dac1f1bc9e0 97 extern WORD PPU_Addr;
beaglescout007 0:3dac1f1bc9e0 98 extern WORD PPU_Increment;
beaglescout007 0:3dac1f1bc9e0 99
beaglescout007 0:3dac1f1bc9e0 100 #define R0_NMI_VB 0x80
beaglescout007 0:3dac1f1bc9e0 101 #define R0_NMI_SP 0x40
beaglescout007 0:3dac1f1bc9e0 102 #define R0_SP_SIZE 0x20
beaglescout007 0:3dac1f1bc9e0 103 #define R0_BG_ADDR 0x10
beaglescout007 0:3dac1f1bc9e0 104 #define R0_SP_ADDR 0x08
beaglescout007 0:3dac1f1bc9e0 105 #define R0_INC_ADDR 0x04
beaglescout007 0:3dac1f1bc9e0 106 #define R0_NAME_ADDR 0x03
beaglescout007 0:3dac1f1bc9e0 107
beaglescout007 0:3dac1f1bc9e0 108 #define R1_BACKCOLOR 0xe0
beaglescout007 0:3dac1f1bc9e0 109 #define R1_SHOW_SP 0x10
beaglescout007 0:3dac1f1bc9e0 110 #define R1_SHOW_SCR 0x08
beaglescout007 0:3dac1f1bc9e0 111 #define R1_CLIP_SP 0x04
beaglescout007 0:3dac1f1bc9e0 112 #define R1_CLIP_BG 0x02
beaglescout007 0:3dac1f1bc9e0 113 #define R1_MONOCHROME 0x01
beaglescout007 0:3dac1f1bc9e0 114
beaglescout007 0:3dac1f1bc9e0 115 #define R2_IN_VBLANK 0x80
beaglescout007 0:3dac1f1bc9e0 116 #define R2_HIT_SP 0x40
beaglescout007 0:3dac1f1bc9e0 117 #define R2_MAX_SP 0x20
beaglescout007 0:3dac1f1bc9e0 118 #define R2_WRITE_FLAG 0x10
beaglescout007 0:3dac1f1bc9e0 119
beaglescout007 0:3dac1f1bc9e0 120 #define SCAN_TOP_OFF_SCREEN_START 0
beaglescout007 0:3dac1f1bc9e0 121 #define SCAN_ON_SCREEN_START 8
beaglescout007 0:3dac1f1bc9e0 122 #define SCAN_BOTTOM_OFF_SCREEN_START 232
beaglescout007 0:3dac1f1bc9e0 123 #define SCAN_POSTRENDER_START 240
beaglescout007 0:3dac1f1bc9e0 124 #define SCAN_VBLANK_START 245
beaglescout007 0:3dac1f1bc9e0 125 #define SCAN_VBLANK_END 261
beaglescout007 0:3dac1f1bc9e0 126
beaglescout007 0:3dac1f1bc9e0 127 #define SCAN_APU_CLK1 45 // 240Hz
beaglescout007 0:3dac1f1bc9e0 128 #define SCAN_APU_CLK2 110 // 240Hz 120Hz
beaglescout007 0:3dac1f1bc9e0 129 #define SCAN_APU_CLK3 176 // 240Hz
beaglescout007 0:3dac1f1bc9e0 130 #define SCAN_APU_CLK4 241 // 240Hz 120Hz 60Hz
beaglescout007 0:3dac1f1bc9e0 131
beaglescout007 0:3dac1f1bc9e0 132 /* Current Scanline */
beaglescout007 0:3dac1f1bc9e0 133 extern WORD PPU_Scanline;
beaglescout007 0:3dac1f1bc9e0 134
beaglescout007 0:3dac1f1bc9e0 135 /* Scanline Table */
beaglescout007 0:3dac1f1bc9e0 136 extern BYTE PPU_ScanTable[];
beaglescout007 0:3dac1f1bc9e0 137
beaglescout007 0:3dac1f1bc9e0 138 /* Name Table Bank */
beaglescout007 0:3dac1f1bc9e0 139 extern BYTE PPU_NameTableBank;
beaglescout007 0:3dac1f1bc9e0 140
beaglescout007 0:3dac1f1bc9e0 141 /* BG Base Address */
beaglescout007 0:3dac1f1bc9e0 142 extern BYTE *PPU_BG_Base;
beaglescout007 0:3dac1f1bc9e0 143
beaglescout007 0:3dac1f1bc9e0 144 /* Sprite Base Address */
beaglescout007 0:3dac1f1bc9e0 145 extern BYTE *PPU_SP_Base;
beaglescout007 0:3dac1f1bc9e0 146
beaglescout007 0:3dac1f1bc9e0 147 /* Sprite Height */
beaglescout007 0:3dac1f1bc9e0 148 extern WORD PPU_SP_Height;
beaglescout007 0:3dac1f1bc9e0 149
beaglescout007 0:3dac1f1bc9e0 150 /* NES display size */
beaglescout007 0:3dac1f1bc9e0 151 #define NES_DISP_WIDTH 256
beaglescout007 0:3dac1f1bc9e0 152 #define NES_DISP_HEIGHT 224
beaglescout007 0:3dac1f1bc9e0 153
beaglescout007 0:3dac1f1bc9e0 154 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 155 /* Display and Others resouces */
beaglescout007 0:3dac1f1bc9e0 156 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 157
beaglescout007 0:3dac1f1bc9e0 158 /* Frame Skip */
beaglescout007 0:3dac1f1bc9e0 159 extern WORD FrameSkip;
beaglescout007 0:3dac1f1bc9e0 160 extern WORD FrameCnt;
beaglescout007 0:3dac1f1bc9e0 161
beaglescout007 0:3dac1f1bc9e0 162 //extern WORD DoubleFrame[ 2 ][ NES_DISP_WIDTH * NES_DISP_HEIGHT ];
beaglescout007 0:3dac1f1bc9e0 163 //extern WORD DoubleFrame[ 2 ][ NES_DISP_WIDTH ];
beaglescout007 0:3dac1f1bc9e0 164 extern WORD *WorkFrame;
beaglescout007 0:3dac1f1bc9e0 165 extern WORD WorkFrameIdx;
beaglescout007 0:3dac1f1bc9e0 166
beaglescout007 0:3dac1f1bc9e0 167 extern BYTE ChrBuf[];
beaglescout007 0:3dac1f1bc9e0 168
beaglescout007 0:3dac1f1bc9e0 169 extern BYTE ChrBufUpdate;
beaglescout007 0:3dac1f1bc9e0 170
beaglescout007 0:3dac1f1bc9e0 171 extern WORD PalTable[];
beaglescout007 0:3dac1f1bc9e0 172
beaglescout007 0:3dac1f1bc9e0 173 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 174 /* APU and Pad resources */
beaglescout007 0:3dac1f1bc9e0 175 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 176
beaglescout007 0:3dac1f1bc9e0 177 extern BYTE APU_Reg[];
beaglescout007 0:3dac1f1bc9e0 178
beaglescout007 0:3dac1f1bc9e0 179 extern DWORD PAD1_Latch;
beaglescout007 0:3dac1f1bc9e0 180 extern DWORD PAD2_Latch;
beaglescout007 0:3dac1f1bc9e0 181 extern DWORD PAD_System;
beaglescout007 0:3dac1f1bc9e0 182 extern DWORD PAD1_Bit;
beaglescout007 0:3dac1f1bc9e0 183 extern DWORD PAD2_Bit;
beaglescout007 0:3dac1f1bc9e0 184
beaglescout007 0:3dac1f1bc9e0 185 #define PAD_SYS_QUIT 1
beaglescout007 0:3dac1f1bc9e0 186 #define PAD_SYS_OK 2
beaglescout007 0:3dac1f1bc9e0 187 #define PAD_SYS_CANCEL 4
beaglescout007 0:3dac1f1bc9e0 188 #define PAD_SYS_UP 8
beaglescout007 0:3dac1f1bc9e0 189 #define PAD_SYS_DOWN 0x10
beaglescout007 0:3dac1f1bc9e0 190 #define PAD_SYS_LEFT 0x20
beaglescout007 0:3dac1f1bc9e0 191 #define PAD_SYS_RIGHT 0x40
beaglescout007 0:3dac1f1bc9e0 192
beaglescout007 0:3dac1f1bc9e0 193 #define PAD_PUSH(a,b) ( ( (a) & (b) ) != 0 )
beaglescout007 0:3dac1f1bc9e0 194
beaglescout007 0:3dac1f1bc9e0 195 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 196 /* Mapper Function */
beaglescout007 0:3dac1f1bc9e0 197 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 198
beaglescout007 0:3dac1f1bc9e0 199 /* Initialize Mapper */
beaglescout007 0:3dac1f1bc9e0 200 extern void (*MapperInit)();
beaglescout007 0:3dac1f1bc9e0 201 /* Write to Mapper */
beaglescout007 0:3dac1f1bc9e0 202 extern void (*MapperWrite)( WORD wAddr, BYTE byData );
beaglescout007 0:3dac1f1bc9e0 203 /* Callback at VSync */
beaglescout007 0:3dac1f1bc9e0 204 extern void (*MapperVSync)();
beaglescout007 0:3dac1f1bc9e0 205 /* Callback at HSync */
beaglescout007 0:3dac1f1bc9e0 206 extern void (*MapperHSync)();
beaglescout007 0:3dac1f1bc9e0 207
beaglescout007 0:3dac1f1bc9e0 208 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 209 /* ROM information */
beaglescout007 0:3dac1f1bc9e0 210 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 211
beaglescout007 0:3dac1f1bc9e0 212 /* .nes File Header */
beaglescout007 0:3dac1f1bc9e0 213 struct NesHeader_tag
beaglescout007 0:3dac1f1bc9e0 214 {
beaglescout007 0:3dac1f1bc9e0 215 BYTE byID[ 4 ];
beaglescout007 0:3dac1f1bc9e0 216 BYTE byRomSize;
beaglescout007 0:3dac1f1bc9e0 217 BYTE byVRomSize;
beaglescout007 0:3dac1f1bc9e0 218 BYTE byInfo1;
beaglescout007 0:3dac1f1bc9e0 219 BYTE byInfo2;
beaglescout007 0:3dac1f1bc9e0 220 BYTE byReserve[ 8 ];
beaglescout007 0:3dac1f1bc9e0 221 };
beaglescout007 0:3dac1f1bc9e0 222
beaglescout007 0:3dac1f1bc9e0 223 /* .nes File Header */
beaglescout007 0:3dac1f1bc9e0 224 extern struct NesHeader_tag NesHeader;
beaglescout007 0:3dac1f1bc9e0 225
beaglescout007 0:3dac1f1bc9e0 226 /* Mapper No. */
beaglescout007 0:3dac1f1bc9e0 227 extern BYTE MapperNo;
beaglescout007 0:3dac1f1bc9e0 228
beaglescout007 0:3dac1f1bc9e0 229 /* Other */
beaglescout007 0:3dac1f1bc9e0 230 extern BYTE ROM_Mirroring;
beaglescout007 0:3dac1f1bc9e0 231 extern BYTE ROM_SRAM;
beaglescout007 0:3dac1f1bc9e0 232 extern BYTE ROM_Trainer;
beaglescout007 0:3dac1f1bc9e0 233 extern BYTE ROM_FourScr;
beaglescout007 0:3dac1f1bc9e0 234
beaglescout007 0:3dac1f1bc9e0 235 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 236 /* Function prototypes */
beaglescout007 0:3dac1f1bc9e0 237 /*-------------------------------------------------------------------*/
beaglescout007 0:3dac1f1bc9e0 238
beaglescout007 0:3dac1f1bc9e0 239 /* Initialize pNesX */
beaglescout007 0:3dac1f1bc9e0 240 void pNesX_Init();
beaglescout007 0:3dac1f1bc9e0 241
beaglescout007 0:3dac1f1bc9e0 242 /* Completion treatment */
beaglescout007 0:3dac1f1bc9e0 243 void pNesX_Fin();
beaglescout007 0:3dac1f1bc9e0 244
beaglescout007 0:3dac1f1bc9e0 245 /* Load a cassette */
beaglescout007 0:3dac1f1bc9e0 246 int pNesX_Load( const char *pszFileName );
beaglescout007 0:3dac1f1bc9e0 247
beaglescout007 0:3dac1f1bc9e0 248 /* Reset pNesX */
beaglescout007 0:3dac1f1bc9e0 249 int pNesX_Reset();
beaglescout007 0:3dac1f1bc9e0 250
beaglescout007 0:3dac1f1bc9e0 251 /* Initialize PPU */
beaglescout007 0:3dac1f1bc9e0 252 void pNesX_SetupPPU();
beaglescout007 0:3dac1f1bc9e0 253
beaglescout007 0:3dac1f1bc9e0 254 /* Set up a Mirroring of Name Table */
beaglescout007 0:3dac1f1bc9e0 255 void pNesX_Mirroring( int nType );
beaglescout007 0:3dac1f1bc9e0 256
beaglescout007 0:3dac1f1bc9e0 257 /* The main loop of pNesX */
beaglescout007 0:3dac1f1bc9e0 258 void pNesX_Main();
beaglescout007 0:3dac1f1bc9e0 259
beaglescout007 0:3dac1f1bc9e0 260 /* The loop of emulation */
beaglescout007 0:3dac1f1bc9e0 261 void pNesX_Cycle();
beaglescout007 0:3dac1f1bc9e0 262
beaglescout007 0:3dac1f1bc9e0 263 /* A function in H-Sync */
beaglescout007 0:3dac1f1bc9e0 264 int pNesX_HSync();
beaglescout007 0:3dac1f1bc9e0 265
beaglescout007 0:3dac1f1bc9e0 266 /* Render a scanline */
beaglescout007 0:3dac1f1bc9e0 267 void pNesX_DrawLine();
beaglescout007 0:3dac1f1bc9e0 268
beaglescout007 0:3dac1f1bc9e0 269 /* Get a position of scanline hits sprite #0 */
beaglescout007 0:3dac1f1bc9e0 270 void pNesX_GetSprHitY();
beaglescout007 0:3dac1f1bc9e0 271
beaglescout007 0:3dac1f1bc9e0 272 /* Develop character data */
beaglescout007 0:3dac1f1bc9e0 273 void pNesX_SetupChr();
beaglescout007 0:3dac1f1bc9e0 274
beaglescout007 0:3dac1f1bc9e0 275 /* Apu */
beaglescout007 0:3dac1f1bc9e0 276 void ApuInit();
beaglescout007 0:3dac1f1bc9e0 277 void ApuWrite(WORD wAddr, BYTE byData);
beaglescout007 0:3dac1f1bc9e0 278 BYTE ApuRead(WORD wAddr);
beaglescout007 0:3dac1f1bc9e0 279 void pNesX_ApuClk_240Hz();
beaglescout007 0:3dac1f1bc9e0 280 void pNesX_ApuClk_120Hz();
beaglescout007 0:3dac1f1bc9e0 281 void pNesX_ApuClk_60Hz();
beaglescout007 0:3dac1f1bc9e0 282
beaglescout007 0:3dac1f1bc9e0 283 #endif /* !PNESX_H_INCLUDED */
beaglescout007 0:3dac1f1bc9e0 284
beaglescout007 0:3dac1f1bc9e0 285