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RishiRecon
GitHub Repository: RishiRecon/exploits
 Path: blob/main/misc/emulator/xnes/snem/snes.h
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#ifndef SNEM_H

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#define SNEM_H

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int stage;

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#include <stdio.h>

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#include <stdlib.h>

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#include <string.h>

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#define uint32 unsigned

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#define uint16 unsigned short

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#ifdef EMCCHACK

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#define RGB555toRGB24(t) \

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			( (((t)&0x1f)<<3) | (((t)&0x3e0)<<6) | (((t)&0x7c00)<<9)|0xff000000 )

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#else

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#define RGB555toRGB24(t) \

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			( (((t)&0x1f)<<19) | (((t)&0x3e0)<<6) | (((t)&0x7c00)>>7)|0xff000000 )

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#endif

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/*65816*/

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typedef union

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{

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        unsigned short w;

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        struct { unsigned char l,h; } b;

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} reg;

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reg reg_A,reg_X,reg_Y,reg_S;

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unsigned short pc,dp;

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unsigned char pbr,dbr;

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int mode;

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int nmiena;

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int setzf;

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struct

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{

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        int c,z,i,d,v,n,x,m,e;

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} struct_p;

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/*I/O*/

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void writeio(unsigned short addr, unsigned char val);

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int nmiocc;

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struct

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{

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        unsigned short src[8],size[8];

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        unsigned char srcbank[8],ctrl[8],dest[8];

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} dma;

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int vertint,vertline;

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int horint;

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/*Memory*/

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unsigned char *mempoint[256][8];

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int mempointv[256][8],mempointw[256][8];

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#define readmem(b,a)    ((mempointv[b&255][((a)&0xFFFF)>>13])?mempoint[b&255][((a)&0xFFFF)>>13][(a)&0x1FFF]:readmeml(b,a))

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#define writemem(b,a,v) {if (mempointw[b&255][((a)&0xFFFF)>>13]) {mempoint[b&255][((a)&0xFFFF)>>13][(a)&0x1FFF]=v; } else {writememl(b,a,v);} }

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/*if (a==0x163B || a==0x22A) printf("%04X write %02X %02X:%04X %06X\n",a,v,pbr,pc,(ram[reg_S.w+1]|(ram[reg_S.w+2]<<8)|(ram[reg_S.w+3]<<16))+1); if (b==0x7F && (a&0xFFFF)==0x49) printf("7F0049 write %02X %02X:%04X %04X\n",v,pbr,pc,(ram[reg_S.w+1]|(ram[reg_S.w+2]<<8))+1); */

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/*PPU*/

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void writeppu(unsigned short addr, unsigned char val);

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void initppu();

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int vbl;

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unsigned char hdmaena;

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int curline;

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unsigned short sprchraddr;

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unsigned char objram[1024];

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unsigned short objaddr;

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int firstobjwrite;

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struct

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{

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        int hdmaon[8];

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        int hdmacount[8];

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        uint32 hdmaval[8];

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        unsigned char srcbank[8];

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        unsigned short src[8];

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        int repeat[8];

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        unsigned char ibank[8];

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        unsigned short ta[8];

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} hdma;

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/*DSP*/

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unsigned char dspregs[128];

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int dspaddr;

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unsigned char readdsp(int a);

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void vblankhdma();

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void decodesprites();

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unsigned char readmeml(unsigned char b, unsigned short addr);

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unsigned char readspcl(unsigned short a);

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void doline(int line);

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void updatespuaccess(int page);

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void writedsp(int a, unsigned char v);

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void int65816();

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unsigned char readio(unsigned short addr);

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unsigned char readppu(unsigned short a);

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void nmi65816();

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void dumpregs();

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void mainloop(int) __attribute__((used));

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void reset65816();

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void resetspc();

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void resetppu();

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void dumpspcregs();

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void makeopcodetable();

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void makeromtable();

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void makespctables();

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void maketables();

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int loadsmc(char *fn);

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void renderscreen() __attribute__((used));

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void native_hardware_init(int);

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uint32 *native_bitmap_pointer(int x, int y) __attribute__((used));

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void native_bitmap_clear_line(int line, uint32);

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void native_bitmap_to_screen();

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void native_tick_callback( int (*func)(void), int fps);

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int native_poll_keyboard() __attribute__((used));

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uint32* native_set_joypad_state(uint32 state) __attribute__((used));

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uint32 native_joypad_state(int num);

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#ifdef SOUND

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#define UPDATE_SOUND  if (soundupdate && spcemu)  { soundupdate=0; updatesound();}

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#else

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#define UPDATE_SOUND

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#endif

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#ifdef USE_SDL  

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  extern Uint8 *keystates;

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  extern uint32 *bitmap;

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#else

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  extern uint32 bitmap[288*256];  

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#endif

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#endif

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