X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fnew_dynarec%2Fpcsxmem.c;h=8057b7ed506d7c56b29796bc949f4181a34c4a06;hp=a32b418301895e0c5d5ba194e5c7010db34bab43;hb=679d5ee3c46235923a99391922de1df0239e9ff3;hpb=d75460620efa21df695967c72a92265dac04001f diff --git a/libpcsxcore/new_dynarec/pcsxmem.c b/libpcsxcore/new_dynarec/pcsxmem.c index a32b4183..8057b7ed 100644 --- a/libpcsxcore/new_dynarec/pcsxmem.c +++ b/libpcsxcore/new_dynarec/pcsxmem.c @@ -26,6 +26,7 @@ static uintptr_t *mem_readtab; static uintptr_t *mem_writetab; static uintptr_t mem_iortab[(1+2+4) * 0x1000 / 4]; static uintptr_t mem_iowtab[(1+2+4) * 0x1000 / 4]; +static uintptr_t mem_ffrtab[(1+2+4) * 0x1000 / 4]; static uintptr_t mem_ffwtab[(1+2+4) * 0x1000 / 4]; //static uintptr_t mem_unmrtab[(1+2+4) * 0x1000 / 4]; static uintptr_t mem_unmwtab[(1+2+4) * 0x1000 / 4]; @@ -47,23 +48,28 @@ void map_item(uintptr_t *out, const void *h, uintptr_t flag) // size must be power of 2, at least 4k #define map_l1_mem(tab, i, addr, size, base) \ - map_item(&tab[((addr)>>12) + i], \ + map_item(&tab[((u32)(addr) >> 12) + i], \ (u8 *)(base) - (u32)((addr) + ((i << 12) & ~(size - 1))), 0) #define IOMEM32(a) (((a) & 0xfff) / 4) #define IOMEM16(a) (0x1000/4 + (((a) & 0xfff) / 2)) #define IOMEM8(a) (0x1000/4 + 0x1000/2 + ((a) & 0xfff)) -u8 zero_mem[0x1000]; +u32 zero_mem[0x1000/4]; +static u32 ffff_mem[0x1000/4]; -u32 read_mem_dummy() +static u32 read_mem_dummy(u32 addr) { - return 0; + // use 'addr' and not 'address', yes the api is weird... + memprintf("unmapped r %08x @%08x %u\n", addr, psxRegs.pc, psxRegs.cycle); + return 0xffffffff; } static void write_mem_dummy(u32 data) { - memprintf("unmapped w %08x, %08x @%08x %u\n", address, data, psxRegs.pc, psxRegs.cycle); + if (!(psxRegs.CP0.n.Status & (1 << 16))) + memprintf("unmapped w %08x, %08x @%08x %u\n", + address, data, psxRegs.pc, psxRegs.cycle); } /* IO handlers */ @@ -240,46 +246,51 @@ static void io_gpu_write_status(u32 value) gpuSyncPluginSR(); } -static void map_ram_write(void) +void new_dyna_pcsx_mem_isolate(int enable) { int i; - for (i = 0; i < (0x800000 >> 12); i++) { - map_l1_mem(mem_writetab, i, 0x80000000, 0x200000, psxM); - map_l1_mem(mem_writetab, i, 0x00000000, 0x200000, psxM); - map_l1_mem(mem_writetab, i, 0xa0000000, 0x200000, psxM); + // note: apparently 0xa0000000 uncached access still works, + // at least read does for sure, so assume write does too + memprintf("mem isolate %d\n", enable); + if (enable) { + for (i = 0; i < (0x800000 >> 12); i++) { + map_item(&mem_writetab[0x80000|i], mem_unmwtab, 1); + map_item(&mem_writetab[0x00000|i], mem_unmwtab, 1); + //map_item(&mem_writetab[0xa0000|i], mem_unmwtab, 1); + } + } + else { + for (i = 0; i < (0x800000 >> 12); i++) { + map_l1_mem(mem_writetab, i, 0x80000000, 0x200000, psxM); + map_l1_mem(mem_writetab, i, 0x00000000, 0x200000, psxM); + map_l1_mem(mem_writetab, i, 0xa0000000, 0x200000, psxM); + } } } -static void unmap_ram_write(void) +static u32 read_biu(u32 addr) { - int i; - - for (i = 0; i < (0x800000 >> 12); i++) { - map_item(&mem_writetab[0x80000|i], mem_unmwtab, 1); - map_item(&mem_writetab[0x00000|i], mem_unmwtab, 1); - map_item(&mem_writetab[0xa0000|i], mem_unmwtab, 1); - } + if (addr != 0xfffe0130) + return read_mem_dummy(addr); + + FILE *f = fopen("/tmp/psxbiu.bin", "wb"); + fwrite(psxM, 1, 0x200000, f); + fclose(f); + memprintf("read_biu %08x @%08x %u\n", + psxRegs.biuReg, psxRegs.pc, psxRegs.cycle); + return psxRegs.biuReg; } static void write_biu(u32 value) { - memprintf("write_biu %08x, %08x @%08x %u\n", address, value, psxRegs.pc, psxRegs.cycle); - - if (address != 0xfffe0130) + if (address != 0xfffe0130) { + write_mem_dummy(value); return; - - switch (value) { - case 0x800: case 0x804: - unmap_ram_write(); - break; - case 0: case 0x1e988: - map_ram_write(); - break; - default: - printf("write_biu: unexpected val: %08x\n", value); - break; } + + memprintf("write_biu %08x @%08x %u\n", value, psxRegs.pc, psxRegs.cycle); + psxRegs.biuReg = value; } void new_dyna_pcsx_mem_load_state(void) @@ -302,6 +313,8 @@ void new_dyna_pcsx_mem_init(void) { int i; + memset(ffff_mem, 0xff, sizeof(ffff_mem)); + // have to map these further to keep tcache close to .text mem_readtab = psxMap(0x08000000, 0x200000 * sizeof(mem_readtab[0]), 0, MAP_TAG_LUTS); if (mem_readtab == NULL) { @@ -320,7 +333,7 @@ void new_dyna_pcsx_mem_init(void) // default/unmapped memhandlers for (i = 0; i < 0x100000; i++) { //map_item(&mem_readtab[i], mem_unmrtab, 1); - map_l1_mem(mem_readtab, i, 0, 0x1000, zero_mem); + map_l1_mem(mem_readtab, i, 0, 0x1000, ffff_mem); map_item(&mem_writetab[i], mem_unmwtab, 1); } @@ -330,7 +343,7 @@ void new_dyna_pcsx_mem_init(void) map_l1_mem(mem_readtab, i, 0x00000000, 0x200000, psxM); map_l1_mem(mem_readtab, i, 0xa0000000, 0x200000, psxM); } - map_ram_write(); + new_dyna_pcsx_mem_isolate(0); // BIOS and it's mirrors for (i = 0; i < (0x80000 >> 12); i++) { @@ -345,12 +358,12 @@ void new_dyna_pcsx_mem_init(void) map_l1_mem(mem_writetab, 0, 0x9f800000, 0x1000, psxH); // I/O - map_item(&mem_readtab[0x1f801000 >> 12], mem_iortab, 1); - map_item(&mem_readtab[0x9f801000 >> 12], mem_iortab, 1); - map_item(&mem_readtab[0xbf801000 >> 12], mem_iortab, 1); - map_item(&mem_writetab[0x1f801000 >> 12], mem_iowtab, 1); - map_item(&mem_writetab[0x9f801000 >> 12], mem_iowtab, 1); - map_item(&mem_writetab[0xbf801000 >> 12], mem_iowtab, 1); + map_item(&mem_readtab[0x1f801000u >> 12], mem_iortab, 1); + map_item(&mem_readtab[0x9f801000u >> 12], mem_iortab, 1); + map_item(&mem_readtab[0xbf801000u >> 12], mem_iortab, 1); + map_item(&mem_writetab[0x1f801000u >> 12], mem_iowtab, 1); + map_item(&mem_writetab[0x9f801000u >> 12], mem_iowtab, 1); + map_item(&mem_writetab[0xbf801000u >> 12], mem_iowtab, 1); // L2 // unmapped tables @@ -461,9 +474,12 @@ void new_dyna_pcsx_mem_init(void) } // misc - map_item(&mem_writetab[0xfffe0130 >> 12], mem_ffwtab, 1); - for (i = 0; i < 0x1000/4 + 0x1000/2 + 0x1000; i++) + map_item(&mem_readtab[0xfffe0130u >> 12], mem_ffrtab, 1); + map_item(&mem_writetab[0xfffe0130u >> 12], mem_ffwtab, 1); + for (i = 0; i < 0x1000/4 + 0x1000/2 + 0x1000; i++) { + map_item(&mem_ffrtab[i], read_biu, 1); map_item(&mem_ffwtab[i], write_biu, 1); + } mem_rtab = mem_readtab; mem_wtab = mem_writetab;