X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2FMemory.c;h=8632c7a731691c468311c6ccfb81c23e28c4335c;hb=7b802576b284e113c637324e583a3a44e0e8e871;hp=8dc11bb5514d2206f818522215dbd483ad0a0255;hpb=ca61ee42d9298aeb5a5c97d9addaa1832af41d67;p=picodrive.git diff --git a/Pico/Memory.c b/Pico/Memory.c index 8dc11bb..8632c7a 100644 --- a/Pico/Memory.c +++ b/Pico/Memory.c @@ -37,6 +37,8 @@ extern unsigned int ppop; #ifdef IO_STATS void log_io(unsigned int addr, int bits, int rw); +#elif defined(_MSC_VER) +#define log_io #else #define log_io(...) #endif @@ -203,10 +205,7 @@ static void SRAMWrite(u32 a, u32 d) } // for nonstandard reads -#ifndef _ASM_MEMORY_C -static -#endif -u32 OtherRead16End(u32 a, int realsize) +static u32 OtherRead16End(u32 a, int realsize) { u32 d=0; @@ -304,23 +303,11 @@ static void OtherWrite8End(u32 a,u32 d,int realsize) #endif elprintf(EL_UIO, "strange w%i: %06x, %08x @%06x", realsize, a&0xffffff, d, SekPc); - if(a >= 0xA13004 && a < 0xA13040) { - // dumb 12-in-1 or 4-in-1 banking support - int len; - a &= 0x3f; a <<= 16; - len = Pico.romsize - a; - if (len <= 0) return; // invalid/missing bank - if (len > 0x200000) len = 0x200000; // 2 megs - memcpy(Pico.rom, Pico.rom+a, len); // code which does this is in RAM so this is safe. - return; - } - // for games with simple protection devices, discovered by Haze - else if ((a>>22) == 1) + if ((a>>22) == 1) Pico.m.prot_bytes[(a>>2)&1] = (u8)d; } - #include "MemoryCmn.c" @@ -499,6 +486,26 @@ static void PicoWrite32(u32 a,u32 d) // ----------------------------------------------------------------- + +// TODO: asm code +static void OtherWrite16End(u32 a,u32 d,int realsize) +{ + PicoWrite8Hook(a, d>>8, realsize); + PicoWrite8Hook(a+1,d&0xff, realsize); +} + +u32 (*PicoRead16Hook) (u32 a, int realsize) = OtherRead16End; +void (*PicoWrite8Hook) (u32 a, u32 d, int realsize) = OtherWrite8End; +void (*PicoWrite16Hook)(u32 a, u32 d, int realsize) = OtherWrite16End; + +PICO_INTERNAL void PicoMemResetHooks(void) +{ + // default unmapped/cart specific handlers + PicoRead16Hook = OtherRead16End; + PicoWrite8Hook = OtherWrite8End; + PicoWrite16Hook = OtherWrite16End; +} + PICO_INTERNAL void PicoMemSetup(void) { // Setup memory callbacks: