- 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
- // this is for a nasty situation where Z80 was enabled and disabled in the same 68k timeslice (Golden Axe III)\r
- if (Pico.m.z80Run) {\r
- int lineCycles=(488-SekCyclesLeft)&0x1ff;\r
- z80stopCycle = SekCyclesDone();\r
- lineCycles=(lineCycles>>1)-(lineCycles>>5);\r
- z80_run(lineCycles);\r
- }\r
- } else {\r
- z80startCycle = SekCyclesDone();\r
- //if(Pico.m.scanline != -1)\r
- }\r
- dprintf("set_zrun: %02x [%i|%i] @%06x", d, Pico.m.scanline, SekCyclesDone(), /*mz80GetRegisterValue(NULL, 0),*/ SekPc);\r
- Pico.m.z80Run=(u8)d; return;\r
- }\r
- if (a==0xa11200) { dprintf("write z80Reset: %02x", d); 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