-\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
-static 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
-static u32 UnusualRead16(u32 a, int realsize)\r
-{\r
- u32 d=0;\r
-\r
- dprintf("unusual r%i: %06x @%06x", realsize&~1, (a&0xfffffe)+(realsize&1), SekPc);\r
-\r
-\r
- dprintf("ret = %04x", d);\r
- return d;\r
-}\r
-\r
-static u32 OtherRead16(u32 a, int realsize)\r