}\r
#endif\r
\r
-static int PadRead(int i)\r
-{\r
- int pad=0,value=0,TH;\r
- pad=~PicoPad[i]; // Get inverse of pad MXYZ SACB RLDU\r
- TH=Pico.ioports[i+1]&0x40;\r
-\r
- if(PicoOpt & 0x20) { // 6 button gamepad enabled\r
- int phase = Pico.m.padTHPhase[i];\r
-\r
- if(phase == 2 && !TH) {\r
- value=(pad&0xc0)>>2; // ?0SA 0000\r
- goto end;\r
- } else if(phase == 3 && TH) {\r
- value=(pad&0x30)|((pad>>8)&0xf); // ?1CB MXYZ\r
- goto end;\r
- } else if(phase == 3 && !TH) {\r
- value=((pad&0xc0)>>2)|0x0f; // ?0SA 1111\r
- goto end;\r
- }\r
- }\r
-\r
- if(TH) value=(pad&0x3f); // ?1CB RLDU\r
- else value=((pad&0xc0)>>2)|(pad&3); // ?0SA 00DU\r
-\r
- end:\r
-\r
- // orr the bits, which are set as output\r
- value |= Pico.ioports[i+1]&Pico.ioports[i+4];\r
-\r
- return value; // will mirror later\r
-}\r
-\r
-u8 z80Read8(u32 a)\r
-{\r
- if(Pico.m.z80Run&1) return 0;\r
-\r
- a&=0x1fff;\r
-\r
- if(!(PicoOpt&4)) {\r
- // Z80 disabled, do some faking\r
- static u8 zerosent = 0;\r
- if(a == Pico.m.z80_lastaddr) { // probably polling something\r
- u8 d = Pico.m.z80_fakeval;\r
- if((d & 0xf) == 0xf && !zerosent) {\r
- d = 0; zerosent = 1;\r
- } else {\r
- Pico.m.z80_fakeval++;\r
- zerosent = 0;\r
- }\r
- return d;\r
- } else {\r
- Pico.m.z80_fakeval = 0;\r
- }\r
- }\r
-\r
- Pico.m.z80_lastaddr = (u16) a;\r
- return Pico.zram[a];\r
-}\r
-\r
\r
// for nonstandard reads\r
#ifndef _ASM_MEMORY_C\r
static\r
#endif\r
-u32 UnusualRead16(u32 a, int realsize)\r
+u32 OtherRead16End(u32 a, int realsize)\r
{\r
u32 d=0;\r
\r
// some dumb detection is used, but that should be enough to make things work\r
if ((a>>22) == 1 && Pico.romsize >= 512*1024) {\r
if (*(int *)(Pico.rom+0x123e4) == 0x00550c39 && *(int *)(Pico.rom+0x123e8) == 0x00000040) { // Super Bubble Bobble (Unl) [!]\r
- if (a == 0x400000) { d=0x55<<8; goto end; }\r
- else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
- }\r
- else if (*(int *)(Pico.rom+0x008c4) == 0x66240055 && *(int *)(Pico.rom+0x008c8) == 0x00404df9) { // Smart Mouse (Unl)\r
- if (a == 0x400000) { d=0x55<<8; goto end; }\r
- else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
- else if (a == 0x400004) { d=0xaa<<8; goto end; }\r
- else if (a == 0x400006) { d=0xf0<<8; goto end; }\r
- }\r
- else if (*(int *)(Pico.rom+0x00404) == 0x00a90600 && *(int *)(Pico.rom+0x00408) == 0x6708b013) { // King of Fighters '98, The (Unl) [!]\r
- if (a == 0x480000 || a == 0x4800e0 || a == 0x4824a0 || a == 0x488880) { d=0xaa<<8; goto end; }\r
- else if (a == 0x4a8820) { d=0x0a<<8; goto end; }\r
- // there is also a read @ 0x4F8820 which needs 0, but that is returned in default case\r
- }\r
- else if (*(int *)(Pico.rom+0x01b24) == 0x004013f9 && *(int *)(Pico.rom+0x01b28) == 0x00ff0000) { // Mahjong Lover (Unl) [!]\r
- if (a == 0x400000) { d=0x90<<8; goto end; }\r
- else if (a == 0x401000) { d=0xd3<<8; goto end; } // this one doesn't seem to be needed, the code does 2 comparisons and only then\r
- // checks the result, which is of the above one. Left it just in case.\r
- }\r
- else if (*(int *)(Pico.rom+0x05254) == 0x0c3962d0 && *(int *)(Pico.rom+0x05258) == 0x00400055) { // Elf Wor (Unl)\r
- if (a == 0x400000) { d=0x55<<8; goto end; }\r
- else if (a == 0x400004) { d=0xc9<<8; goto end; } // this check is done if the above one fails\r
- else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
- else if (a == 0x400006) { d=0x18<<8; goto end; } // similar to above\r
- }\r
+ if (a == 0x400000) { d=0x55<<8; goto end; }\r
+ else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
+ }\r
+ else if (*(int *)(Pico.rom+0x008c4) == 0x66240055 && *(int *)(Pico.rom+0x008c8) == 0x00404df9) { // Smart Mouse (Unl)\r
+ if (a == 0x400000) { d=0x55<<8; goto end; }\r
+ else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
+ else if (a == 0x400004) { d=0xaa<<8; goto end; }\r
+ else if (a == 0x400006) { d=0xf0<<8; goto end; }\r
+ }\r
+ else if (*(int *)(Pico.rom+0x00404) == 0x00a90600 && *(int *)(Pico.rom+0x00408) == 0x6708b013) { // King of Fighters '98, The (Unl) [!]\r
+ if (a == 0x480000 || a == 0x4800e0 || a == 0x4824a0 || a == 0x488880) { d=0xaa<<8; goto end; }\r
+ else if (a == 0x4a8820) { d=0x0a<<8; goto end; }\r
+ // there is also a read @ 0x4F8820 which needs 0, but that is returned in default case\r
+ }\r
+ else if (*(int *)(Pico.rom+0x01b24) == 0x004013f9 && *(int *)(Pico.rom+0x01b28) == 0x00ff0000) { // Mahjong Lover (Unl) [!]\r
+ if (a == 0x400000) { d=0x90<<8; goto end; }\r
+ else if (a == 0x401000) { d=0xd3<<8; goto end; } // this one doesn't seem to be needed, the code does 2 comparisons and only then\r
+ // checks the result, which is of the above one. Left it just in case.\r
+ }\r
+ else if (*(int *)(Pico.rom+0x05254) == 0x0c3962d0 && *(int *)(Pico.rom+0x05258) == 0x00400055) { // Elf Wor (Unl)\r
+ if (a == 0x400000) { d=0x55<<8; goto end; }\r
+ else if (a == 0x400004) { d=0xc9<<8; goto end; } // this check is done if the above one fails\r
+ else if (a == 0x400002) { d=0x0f<<8; goto end; }\r
+ else if (a == 0x400006) { d=0x18<<8; goto end; } // similar to above\r
+ }\r
// our default behaviour is to return whatever was last written a 0x400000-0x7fffff range (used by Squirrel King (R) [!])\r
- // Lion King II, The (Unl) [!] writes @ 400000 and wants to get that val @ 400002 and wites another val\r
- // @ 400004 which is expected @ 400006, so we really remember 2 values here\r
+ // Lion King II, The (Unl) [!] writes @ 400000 and wants to get that val @ 400002 and wites another val\r
+ // @ 400004 which is expected @ 400006, so we really remember 2 values here\r
d = Pico.m.prot_bytes[(a>>2)&1]<<8;\r
}\r
else if (a == 0xa13000 && Pico.romsize >= 1024*1024) {\r
if (*(int *)(Pico.rom+0xc8af0) == 0x30133013 && *(int *)(Pico.rom+0xc8af4) == 0x000f0240) { // Rockman X3 (Unl) [!]\r
- d=0x0c; goto end;\r
- }\r
+ d=0x0c; goto end;\r
+ }\r
else if (*(int *)(Pico.rom+0x28888) == 0x07fc0000 && *(int *)(Pico.rom+0x2888c) == 0x4eb94e75) { // Bug's Life, A (Unl) [!]\r
- d=0x28; goto end; // does the check from RAM\r
- }\r
+ d=0x28; goto end; // does the check from RAM\r
+ }\r
else if (*(int *)(Pico.rom+0xc8778) == 0x30133013 && *(int *)(Pico.rom+0xc877c) == 0x000f0240) { // Super Mario Bros. (Unl) [!]\r
- d=0x0c; goto end; // seems to be the same code as in Rockman X3 (Unl) [!]\r
- }\r
+ d=0x0c; goto end; // seems to be the same code as in Rockman X3 (Unl) [!]\r
+ }\r
else if (*(int *)(Pico.rom+0xf20ec) == 0x30143013 && *(int *)(Pico.rom+0xf20f0) == 0x000f0200) { // Super Mario 2 1998 (Unl) [!]\r
- d=0x0a; goto end;\r
- }\r
+ d=0x0a; goto end;\r
+ }\r
}\r
else if (a == 0xa13002) { // Pocket Monsters (Unl)\r
d=0x01; goto end;\r
}\r
else if (a == 0x30fe02) {\r
// Virtua Racing - just for fun\r
- // this seems to be some flag that SVP is ready or something similar\r
+ // this seems to be some flag that SVP is ready or something similar\r
d=1; goto end;\r
}\r
\r
return d;\r
}\r
\r
-#ifndef _ASM_MEMORY_C\r
-static\r
-#endif\r
-u32 OtherRead16(u32 a, int realsize)\r
-{\r
- u32 d=0;\r
-\r
- if ((a&0xff0000)==0xa00000) {\r
- if ((a&0x4000)==0x0000) { d=z80Read8(a); d|=d<<8; goto end; } // Z80 ram (not byteswaped)\r
- if ((a&0x6000)==0x4000) { if(PicoOpt&1) d=YM2612Read(); else d=Pico.m.rotate++&3; goto end; } // 0x4000-0x5fff, Fudge if disabled\r
- d=0xffff; goto end;\r
- }\r
- if ((a&0xffffe0)==0xa10000) { // I/O ports\r
- a=(a>>1)&0xf;\r
- switch(a) {\r
- case 0: d=Pico.m.hardware; break; // Hardware value (Version register)\r
- case 1: d=PadRead(0); d|=Pico.ioports[1]&0x80; break;\r
- case 2: d=PadRead(1); d|=Pico.ioports[2]&0x80; break;\r
- default: d=Pico.ioports[a]; break; // IO ports can be used as RAM\r
- }\r
- d|=d<<8;\r
- goto end;\r
- }\r
- // |=0x80 for Shadow of the Beast & Super Offroad; rotate fakes next fetched instruction for Time Killers\r
- if (a==0xa11100) { d=((Pico.m.z80Run&1)<<8)|0x8000|Pico.m.rotate++; goto end; }\r
-\r
-#ifndef _ASM_MEMORY_C\r
- if ((a&0xe700e0)==0xc00000) { d=PicoVideoRead(a); goto end; }\r
-#endif\r
-\r
- d = UnusualRead16(a, realsize);\r
-\r
-end:\r
- return d;\r
-}\r
\r
//extern UINT32 mz80GetRegisterValue(void *, UINT32);\r
\r
-static void OtherWrite8(u32 a,u32 d,int realsize)\r
+static void OtherWrite8End(u32 a,u32 d,int realsize)\r
{\r
- if ((a&0xe700f9)==0xc00011||(a&0xff7ff9)==0xa07f11) { if(PicoOpt&2) SN76496Write(d); return; } // PSG Sound\r
- if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)d; return; } // Z80 ram\r
- if ((a&0xff6000)==0xa04000) { if(PicoOpt&1) emustatus|=YM2612Write(a&3, d); return; } // FM Sound\r
- if ((a&0xffffe0)==0xa10000) { // I/O ports\r
- a=(a>>1)&0xf;\r
- // 6 button gamepad: if TH went from 0 to 1, gamepad changes state\r
- if(PicoOpt&0x20) {\r
- if(a==1) {\r
- Pico.m.padDelay[0] = 0;\r
- if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++;\r
- }\r
- else if(a==2) {\r
- Pico.m.padDelay[1] = 0;\r
- if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++;\r
- }\r
- }\r
- Pico.ioports[a]=(u8)d; // IO ports can be used as RAM\r
- return;\r
- }\r
- if (a==0xa11100) {\r
- extern int z80startCycle, z80stopCycle;\r
- //int lineCycles=(488-SekCyclesLeft)&0x1ff;\r
- d&=1; d^=1;\r
- if(!d) {\r
- // hack: detect a nasty situation where Z80 was enabled and disabled in the same 68k timeslice (Golden Axe III)\r
- if((PicoOpt&4) && Pico.m.z80Run==1) z80_run(20);\r
- z80stopCycle = SekCyclesDone();\r
- //z80ExtraCycles += (lineCycles>>1)-(lineCycles>>5); // only meaningful in PicoFrameHints()\r
- } else {\r
- z80startCycle = SekCyclesDone();\r
- //if(Pico.m.scanline != -1)\r
- //z80ExtraCycles -= (lineCycles>>1)-(lineCycles>>5)+16;\r
- }\r
- //dprintf("set_zrun: %i [%i|%i] zPC=%04x @%06x", d, Pico.m.scanline, SekCyclesDone(), mz80GetRegisterValue(NULL, 0), SekPc);\r
- Pico.m.z80Run=(u8)d; return;\r
- }\r
- if (a==0xa11200) { if(!(d&1)) z80_reset(); return; }\r
-\r
- if ((a&0xff7f00)==0xa06000) // Z80 BANK register\r
- {\r
- Pico.m.z80_bank68k>>=1;\r
- Pico.m.z80_bank68k|=(d&1)<<8;\r
- Pico.m.z80_bank68k&=0x1ff; // 9 bits and filled in the new top one\r
- return;\r
- }\r
-\r
- if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)(d|(d<<8))); return; } // Byte access gets mirrored\r
-\r
// sram\r
//if(a==0x200000) dprintf("cc : %02x @ %06x [%i|%i]", d, SekPc, SekCyclesDoneT(), SekCyclesDone());\r
//if(a==0x200001) dprintf("w8 : %02x @ %06x [%i]", d, SekPc, SekCyclesDoneT());\r
if(a >= SRam.start && a <= SRam.end) {\r
unsigned int sreg = Pico.m.sram_reg;\r
if(!(sreg & 0x10)) {\r
- // not detected SRAM\r
- if((a&~1)==0x200000) {\r
+ // not detected SRAM\r
+ if((a&~1)==0x200000) {\r
Pico.m.sram_reg|=4; // this should be a game with EEPROM (like NBA Jam)\r
SRam.start=0x200000; SRam.end=SRam.start+1;\r
}\r
- Pico.m.sram_reg|=0x10;\r
- }\r
+ Pico.m.sram_reg|=0x10;\r
+ }\r
if(sreg & 4) { // EEPROM write\r
- if(SekCyclesDoneT()-lastSSRamWrite < 46) {\r
- // just update pending state\r
- SRAMUpdPending(a, d);\r
- } else {\r
- SRAMWriteEEPROM(sreg>>6); // execute pending\r
- SRAMUpdPending(a, d);\r
+ if(SekCyclesDoneT()-lastSSRamWrite < 46) {\r
+ // just update pending state\r
+ SRAMUpdPending(a, d);\r
+ } else {\r
+ SRAMWriteEEPROM(sreg>>6); // execute pending\r
+ SRAMUpdPending(a, d);\r
lastSSRamWrite = SekCyclesDoneT();\r
- }\r
+ }\r
} else if(!(sreg & 2)) {\r
u8 *pm=(u8 *)(SRam.data-SRam.start+a);\r
if(*pm != (u8)d) {\r
SRam.changed = 1;\r
*pm=(u8)d;\r
}\r
- }\r
+ }\r
return;\r
}\r
\r
\r
if(a >= 0xA13004 && a < 0xA13040) {\r
// dumb 12-in-1 or 4-in-1 banking support\r
- int len;\r
- a &= 0x3f; a <<= 16;\r
- len = Pico.romsize - a;\r
- if (len <= 0) return; // invalid/missing bank\r
- if (len > 0x200000) len = 0x200000; // 2 megs\r
- memcpy(Pico.rom, Pico.rom+a, len); // code which does this is in RAM so this is safe.\r
+ int len;\r
+ a &= 0x3f; a <<= 16;\r
+ len = Pico.romsize - a;\r
+ if (len <= 0) return; // invalid/missing bank\r
+ if (len > 0x200000) len = 0x200000; // 2 megs\r
+ memcpy(Pico.rom, Pico.rom+a, len); // code which does this is in RAM so this is safe.\r
return;\r
}\r
\r
Pico.m.prot_bytes[(a>>2)&1] = (u8)d;\r
}\r
\r
-static void OtherWrite16(u32 a,u32 d)\r
-{\r
- if ((a&0xe700e0)==0xc00000) { PicoVideoWrite(a,(u16)d); return; }\r
- if ((a&0xff4000)==0xa00000) { if(!(Pico.m.z80Run&1)) Pico.zram[a&0x1fff]=(u8)(d>>8); return; } // Z80 ram (MSB only)\r
-\r
- if ((a&0xffffe0)==0xa10000) { // I/O ports\r
- a=(a>>1)&0xf;\r
- // 6 button gamepad: if TH went from 0 to 1, gamepad changes state\r
- if(PicoOpt&0x20) {\r
- if(a==1) {\r
- Pico.m.padDelay[0] = 0;\r
- if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++;\r
- }\r
- else if(a==2) {\r
- Pico.m.padDelay[1] = 0;\r
- if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++;\r
- }\r
- }\r
- Pico.ioports[a]=(u8)d; // IO ports can be used as RAM\r
- return;\r
- }\r
- if (a==0xa11100) { OtherWrite8(a, d>>8, 16); return; }\r
- if (a==0xa11200) { if(!(d&0x100)) z80_reset(); return; }\r
\r
- OtherWrite8(a, d>>8, 16);\r
- OtherWrite8(a+1,d&0xff, 16);\r
-}\r
+#include "MemoryCmn.c"\r
+\r
\r
// -----------------------------------------------------------------\r
// Read Rom and read Ram\r
if(a >= SRam.start && a <= SRam.end) {\r
unsigned int sreg = Pico.m.sram_reg;\r
if(!(sreg & 0x10) && (sreg & 1) && a > 0x200001) { // not yet detected SRAM\r
- Pico.m.sram_reg|=0x10; // should be normal SRAM\r
- }\r
+ Pico.m.sram_reg|=0x10; // should be normal SRAM\r
+ }\r
if(sreg & 4) { // EEPROM read\r
d = SRAMReadEEPROM();\r
goto end;\r
// dprintf("w8 : %06x, %02x @%06x", a&0xffffff, d, SekPc);\r
\r
\r
- if ((a&0xe00000)==0xe00000) { u8 *pm=(u8 *)(Pico.ram+((a^1)&0xffff)); pm[0]=d; return; } // Ram\r
+ if ((a&0xe00000)==0xe00000) {\r
+ if((a&0xffff)==0xf62a) dprintf("(f62a) = %02x [%i|%i] @ %x", d, Pico.m.scanline, SekCyclesDone(), SekPc);\r
+ u8 *pm=(u8 *)(Pico.ram+((a^1)&0xffff)); pm[0]=d; return; } // Ram\r
\r
a&=0xffffff;\r
OtherWrite8(a,d,8);\r
}\r
\r
-static void CPU_CALL PicoWrite16(u32 a,u16 d)\r
+void CPU_CALL PicoWrite16(u32 a,u16 d)\r
{\r
#ifdef __debug_io\r
dprintf("w16: %06x, %04x", a&0xffffff, d);\r
\r
\r
// -----------------------------------------------------------------\r
-int PicoMemInit()\r
+void PicoMemSetup()\r
{\r
#ifdef EMU_C68K\r
// Setup memory callbacks:\r
PicoCpu.write16=PicoWrite16;\r
PicoCpu.write32=PicoWrite32;\r
#endif\r
- return 0;\r
}\r
\r
#ifdef EMU_A68K\r
\r
unsigned int m68k_read_memory_8(unsigned int address)\r
{\r
- return (PicoMCD&1) ? PicoReadCD8w(address) : PicoRead8(address);\r
+ return (PicoMCD&1) ? PicoReadCD8w(address) : PicoRead8(address);\r
}\r
\r
unsigned int m68k_read_memory_16(unsigned int address)\r
{\r
- return (PicoMCD&1) ? PicoReadCD16w(address) : PicoRead16(address);\r
+ return (PicoMCD&1) ? PicoReadCD16w(address) : PicoRead16(address);\r
}\r
\r
unsigned int m68k_read_memory_32(unsigned int address)\r
{\r
- return (PicoMCD&1) ? PicoReadCD32w(address) : PicoRead32(address);\r
+ return (PicoMCD&1) ? PicoReadCD32w(address) : PicoRead32(address);\r
}\r
\r
void m68k_write_memory_8(unsigned int address, unsigned int value)\r
{\r
- if (PicoMCD&1) PicoWriteCD8w(address, (u8)value); else PicoWrite8(address, (u8)value);\r
+ if (PicoMCD&1) PicoWriteCD8w(address, (u8)value); else PicoWrite8(address, (u8)value);\r
}\r
\r
void m68k_write_memory_16(unsigned int address, unsigned int value)\r
{\r
- if (PicoMCD&1) PicoWriteCD16w(address,(u16)value); else PicoWrite16(address,(u16)value);\r
+ if (PicoMCD&1) PicoWriteCD16w(address,(u16)value); else PicoWrite16(address,(u16)value);\r
}\r
\r
void m68k_write_memory_32(unsigned int address, unsigned int value)\r
{\r
- if (PicoMCD&1) PicoWriteCD32w(address, value); else PicoWrite32(address, value);\r
+ if (PicoMCD&1) PicoWriteCD32w(address, value); else PicoWrite32(address, value);\r
}\r
#endif\r
#endif // EMU_M68K\r