From 31cd6032b51dd31def3cee4d778e480c8fb0df67 Mon Sep 17 00:00:00 2001 From: notaz Date: Mon, 14 Aug 2023 23:49:23 +0300 Subject: [PATCH] psxbios: some assorted changes --- libpcsxcore/psxbios.c | 153 +++++++++++++++++++++++++----------------- libpcsxcore/psxhle.c | 10 +-- 2 files changed, 96 insertions(+), 67 deletions(-) diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c index c7cbf09b..7e88c9cd 100644 --- a/libpcsxcore/psxbios.c +++ b/libpcsxcore/psxbios.c @@ -35,14 +35,17 @@ #include "gpu.h" #include "sio.h" #include "psxhle.h" +#include "psxinterpreter.h" #include #if (defined(__GNUC__) && __GNUC__ >= 5) || defined(__clang__) #pragma GCC diagnostic ignored "-Wpointer-sign" #endif -#undef SysPrintf -#define SysPrintf if (Config.PsxOut) printf +#ifndef PSXBIOS_LOG +//#define PSXBIOS_LOG printf +#define PSXBIOS_LOG(...) +#endif char *biosA0n[256] = { // 0x00 @@ -66,9 +69,9 @@ char *biosA0n[256] = { "realloc", "InitHeap", "_exit", "getchar", "putchar", "gets", "puts", "printf", // 0x40 - "sys_a0_40", "LoadTest", "Load", "Exec", + "SystemErrorUnresolvedException", "LoadTest", "Load", "Exec", "FlushCache", "InstallInterruptHandler", "GPU_dw", "mem2vram", - "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets", + "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets", "sys_a0_4c", "GetGPUStatus", "GPU_sync", "sys_a0_4f", // 0x50 "sys_a0_50", "LoadExec", "GetSysSp", "sys_a0_53", @@ -102,7 +105,7 @@ char *biosA0n[256] = { "_card_load", "_card_auto", "bufs_cd_4", "sys_a0_af", // 0xb0 "sys_a0_b0", "sys_a0_b1", "do_a_long_jmp", "sys_a0_b3", - "?? sub_function", + "GetSystemInfo", }; char *biosB0n[256] = { @@ -224,10 +227,10 @@ typedef struct { u32 gp0; u32 t_addr; u32 t_size; - u32 d_addr; + u32 d_addr; // 10 u32 d_size; u32 b_addr; - u32 b_size; + u32 b_size; // 1c u32 S_addr; u32 s_size; u32 _sp, _fp, _gp, ret, base; @@ -360,25 +363,31 @@ static int returned_from_exception(void) static inline void softCall(u32 pc) { u32 sra = ra; u32 ssr = psxRegs.CP0.n.SR; + u32 lim = 0; pc0 = pc; ra = 0x80001000; psxRegs.CP0.n.SR &= ~0x404; // disable interrupts - while (pc0 != 0x80001000) + while (pc0 != 0x80001000 && ++lim < 1000000) psxCpu->ExecuteBlock(EXEC_CALLER_HLE); + if (lim == 1000000) + PSXBIOS_LOG("softCall @%x hit lim\n", pc); ra = sra; - psxRegs.CP0.n.SR = ssr; + psxRegs.CP0.n.SR |= ssr & 0x404; } static inline void softCallInException(u32 pc) { u32 sra = ra; + u32 lim = 0; pc0 = pc; ra = 0x80001000; - while (!returned_from_exception() && pc0 != 0x80001000) + while (!returned_from_exception() && pc0 != 0x80001000 && ++lim < 1000000) psxCpu->ExecuteBlock(EXEC_CALLER_HLE); + if (lim == 1000000) + PSXBIOS_LOG("softCallInException @%x hit lim\n", pc); if (pc0 == 0x80001000) ra = sra; } @@ -395,7 +404,7 @@ static void CloseEvent(u32 ev); #define buread(Ra1, mcd, length) { \ - SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \ + PSXBIOS_LOG("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \ ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ memcpy(Ra1, ptr, length); \ if (FDesc[1 + mcd].mode & 0x8000) { \ @@ -408,7 +417,7 @@ static void CloseEvent(u32 ev); #define buwrite(Ra1, mcd, length) { \ u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ - SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \ + PSXBIOS_LOG("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \ ptr = Mcd##mcd##Data + offset; \ memcpy(ptr, Ra1, length); \ FDesc[1 + mcd].offset += length; \ @@ -420,11 +429,6 @@ static void CloseEvent(u32 ev); else v0 = length; \ } -#ifndef PSXBIOS_LOG -//#define PSXBIOS_LOG printf -#define PSXBIOS_LOG(...) -#endif - /* Internally redirects to "FileRead(fd,tempbuf,1)".*/ /* For some strange reason, the returned character is sign-expanded; */ /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */ @@ -1242,11 +1246,8 @@ void psxBios_malloc() { // 0x33 void psxBios_free() { // 0x34 -#ifdef PSXBIOS_LOG PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]); -#endif - - SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4)); + PSXBIOS_LOG("free %x: %x bytes\n", a0, *(u32*)(Ra0-4)); if (a0) *(u32*)(Ra0-4) |= 1; // set chunk to free @@ -1314,7 +1315,7 @@ void psxBios_InitHeap() { // 0x39 /* HACKFIX: Commenting out this line fixes GTA2 crash */ //*heap_addr = SWAP32(size | 1); - SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size); + PSXBIOS_LOG("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size); pc0 = ra; } @@ -1391,7 +1392,8 @@ _start: if (psp != INVALID_PTR) memcpy(psp, save, 4 * 4); - SysPrintf("%s", tmp); + if (Config.PsxOut) + SysPrintf("%s", tmp); } void psxBios_printf() { // 0x3f @@ -1421,7 +1423,7 @@ void psxBios_format() { // 0x41 static void psxBios_SystemErrorUnresolvedException() { if (loadRam32(0xfffc) != 0x12345678) { // prevent log flood - SysPrintf("psxBios_%s\n", biosA0n[0x40]); + SysPrintf("psxBios_%s called from %08x\n", biosA0n[0x40], ra); storeRam32(0xfffc, 0x12345678); } mips_return_void_c(1000); @@ -1450,27 +1452,30 @@ void psxBios_Load() { // 0x42 */ void psxBios_Exec() { // 43 - EXEC *header = (EXEC*)Ra0; - u32 tmp; + EXEC *header = (EXEC *)castRam32ptr(a0); + u32 ptr; + s32 len; -#ifdef PSXBIOS_LOG PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2); -#endif - header->_sp = sp; - header->_fp = fp; - header->_sp = sp; - header->_gp = gp; - header->ret = ra; - header->base = s0; + header->_sp = SWAP32(sp); + header->_fp = SWAP32(fp); + header->_sp = SWAP32(sp); + header->_gp = SWAP32(gp); + header->ret = SWAP32(ra); + header->base = SWAP32(s0); - if (header->S_addr != 0) { - tmp = header->S_addr + header->s_size; - sp = tmp; - fp = sp; - } + ptr = SWAP32(header->b_addr); + len = SWAP32(header->b_size); + if (len != 0) do { + storeRam32(ptr, 0); + len -= 4; ptr += 4; + } while (len > 0); + + if (header->S_addr != 0) + sp = fp = SWAP32(header->S_addr) + SWAP32(header->s_size); - gp = header->gp0; + gp = SWAP32(header->gp0); s0 = a0; @@ -1478,7 +1483,7 @@ void psxBios_Exec() { // 43 a1 = a2; ra = 0x8000; - pc0 = header->_pc0; + pc0 = SWAP32(header->_pc0); } void psxBios_FlushCache() { // 44 @@ -1661,16 +1666,16 @@ void psxBios_SetMem() { // 9f case 2: psxHu32ref(0x1060) = SWAP32(new); psxMu32ref(0x060) = a0; - SysPrintf("Change effective memory : %d MBytes\n",a0); + PSXBIOS_LOG("Change effective memory : %d MBytes\n",a0); break; case 8: psxHu32ref(0x1060) = SWAP32(new | 0x300); psxMu32ref(0x060) = a0; - SysPrintf("Change effective memory : %d MBytes\n",a0); + PSXBIOS_LOG("Change effective memory : %d MBytes\n",a0); default: - SysPrintf("Effective memory must be 2/8 MBytes\n"); + PSXBIOS_LOG("Effective memory must be 2/8 MBytes\n"); break; } @@ -1729,6 +1734,19 @@ void psxBios__card_load() { // ac v0 = 1; pc0 = ra; } +static void psxBios_GetSystemInfo() { // b4 + u32 ret = 0; + //PSXBIOS_LOG("psxBios_%s %x\n", biosA0n[0xb4], a0); + SysPrintf("psxBios_%s %x\n", biosA0n[0xb4], a0); + switch (a0) { + case 0: + case 1: ret = SWAP32(((u32 *)psxR)[0x100/4 + a0]); break; + case 2: ret = 0xbfc0012c; break; + case 5: ret = loadRam32(0x60) << 10; break; + } + mips_return_c(ret, 20); +} + /* System calls B0 */ static u32 psxBios_SysMalloc_(u32 size); @@ -2044,9 +2062,9 @@ void psxBios_ChangeTh() { // 10 u32 tcbBase = loadRam32(A_TT_TCB); u32 th = a0 & 0xffff; -#ifdef PSXBIOS_LOG -// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th); -#endif + // this is quite spammy + //PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x10], th); + // without doing any argument checks, just issue a syscall // (like the real bios does) a0 = 3; @@ -2136,18 +2154,22 @@ void psxBios_PAD_dr() { // 16 static void psxBios_ReturnFromException() { // 17 u32 tcbPtr = loadRam32(A_TT_PCB); const TCB *tcb = loadRam32ptr(tcbPtr); + u32 sr; int i; for (i = 1; i < 32; i++) psxRegs.GPR.r[i] = SWAP32(tcb->reg[i]); psxRegs.GPR.n.lo = SWAP32(tcb->lo); psxRegs.GPR.n.hi = SWAP32(tcb->hi); - psxRegs.CP0.n.SR = SWAP32(tcb->sr); + sr = SWAP32(tcb->sr); //printf("%s %08x->%08x %u\n", __func__, pc0, tcb->epc, psxRegs.cycle); pc0 = k0 = SWAP32(tcb->epc); - psxRegs.CP0.n.SR = (psxRegs.CP0.n.SR & ~0x0f) | ((psxRegs.CP0.n.SR & 0x3c) >> 2); + // the interpreter wants to know about sr changes, so do a MTC0 + sr = (sr & ~0x0f) | ((sr & 0x3c) >> 2); + MTC0(&psxRegs, 12, sr); + use_cycles(53); psxBranchTest(); } @@ -2191,7 +2213,7 @@ static void buopen(int mcd, char *ptr, char *cfg) if ((*fptr & 0xF0) != 0x50) continue; if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue; FDesc[1 + mcd].mcfile = i; - SysPrintf("open %s\n", fptr+0xa); + PSXBIOS_LOG("open %s\n", fptr+0xa); v0 = 1 + mcd; break; } @@ -2230,7 +2252,7 @@ static void buopen(int mcd, char *ptr, char *cfg) pptr[8] = pptr[9] = 0xff; for (j=0, xor=0; j<127; j++) xor^= pptr[j]; pptr[127] = xor; - SysPrintf("openC %s %d\n", ptr, nblk); + PSXBIOS_LOG("openC %s %d\n", ptr, nblk); v0 = 1 + mcd; /* just go ahead and resave them all */ SaveMcd(cfg, ptr, 128, 128 * 15); @@ -2325,9 +2347,8 @@ void psxBios_write() { // 0x35/0x03 char *ptr; void *pa1 = Ra1; -#ifdef PSXBIOS_LOG - PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2); -#endif + if (a0 != 1) // stdout + PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2); v0 = -1; if (pa1 == INVALID_PTR) { @@ -2339,7 +2360,7 @@ void psxBios_write() { // 0x35/0x03 char *ptr = pa1; v0 = a2; - while (a2 > 0) { + if (Config.PsxOut) while (a2 > 0) { SysPrintf("%c", *ptr++); a2--; } pc0 = ra; return; @@ -2386,12 +2407,12 @@ void psxBios_close() { // 0x36 } void psxBios_putchar() { // 3d - SysPrintf("%c", (char)a0); + if (Config.PsxOut) SysPrintf("%c", (char)a0); pc0 = ra; } void psxBios_puts() { // 3e/3f - SysPrintf("%s", Ra0); + if (Config.PsxOut) SysPrintf("%s", Ra0); pc0 = ra; } @@ -2428,7 +2449,7 @@ static size_t strlen_internal(char* p) strcpy(dir->name+i, ptr+i); break; } \ match = 0; break; \ } \ - SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \ + PSXBIOS_LOG("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \ if (match == 0) { continue; } \ dir->size = 8192; \ v0 = _dir; \ @@ -2552,7 +2573,7 @@ void psxBios_rename() { // 44 if (strcmp(Ra0+5, ptr+0xa)) continue; \ *ptr = (*ptr & 0xf) | 0xA0; \ SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \ - SysPrintf("delete %s\n", ptr+0xa); \ + PSXBIOS_LOG("delete %s\n", ptr+0xa); \ v0 = 1; \ break; \ } \ @@ -3230,6 +3251,8 @@ void psxBiosInit() { biosA0[0x3b] = psxBios_getchar; biosA0[0x3c] = psxBios_putchar; //biosA0[0x3d] = psxBios_gets; + biosA0[0x3e] = psxBios_puts; + biosA0[0x3f] = psxBios_printf; biosA0[0x40] = psxBios_SystemErrorUnresolvedException; //biosA0[0x41] = psxBios_LoadTest; biosA0[0x42] = psxBios_Load; @@ -3346,7 +3369,7 @@ void psxBiosInit() { //biosA0[0xb1] = psxBios_sys_a0_b1; //biosA0[0xb2] = psxBios_do_a_long_jmp //biosA0[0xb3] = psxBios_sys_a0_b3; - //biosA0[0xb4] = psxBios_sub_function; + biosA0[0xb4] = psxBios_GetSystemInfo; //*******************B0 CALLS**************************** biosB0[0x00] = psxBios_SysMalloc; //biosB0[0x01] = psxBios_sys_b0_01; @@ -3409,7 +3432,9 @@ void psxBiosInit() { //biosB0[0x3a] = psxBios_getc; //biosB0[0x3b] = psxBios_putc; biosB0[0x3c] = psxBios_getchar; + biosB0[0x3d] = psxBios_putchar; //biosB0[0x3e] = psxBios_gets; + biosB0[0x3f] = psxBios_puts; //biosB0[0x40] = psxBios_cd; biosB0[0x41] = psxBios_format; biosB0[0x42] = psxBios_firstfile; @@ -3483,11 +3508,15 @@ void psxBiosInit() { // initial RNG seed psxMu32ref(0x9010) = SWAPu32(0xac20cc00); + // somewhat pretend to be a SCPH1001 BIOS + // some games look for these and take an exception if they're missing rom32 = (u32 *)psxR; rom32[0x100/4] = SWAP32(0x19951204); rom32[0x104/4] = SWAP32(3); strcpy(psxR + 0x108, "PCSX authors"); - strcpy(psxR + 0x12c, "PCSX HLE"); + strcpy(psxR + 0x12c, "CEX-3000 PCSX HLE"); // see psxBios_GetSystemInfo + strcpy(psxR + 0x7ff32, "System ROM Version 2.2 12/04/95 A"); + strcpy(psxR + 0x7ff54, "GPL-2.0-or-later"); // fonts len = 0x80000 - 0x66000; @@ -3697,7 +3726,7 @@ void hleExc0_2_2_syscall() // not in any A/B/C table if (code != R3000E_Syscall) { if (code != 0) { DeliverEvent(0xf0000010, 0x1000); - psxBios_SystemErrorUnresolvedException(); + //psxBios_SystemErrorUnresolvedException(); } mips_return_c(0, 17); return; diff --git a/libpcsxcore/psxhle.c b/libpcsxcore/psxhle.c index 379ffd1f..175b86ab 100644 --- a/libpcsxcore/psxhle.c +++ b/libpcsxcore/psxhle.c @@ -88,11 +88,11 @@ static void hleExecRet() { PSXHLE_LOG("ExecRet %x: %x\n", psxRegs.GPR.n.s0, header->ret); - psxRegs.GPR.n.ra = header->ret; - psxRegs.GPR.n.sp = header->_sp; - psxRegs.GPR.n.fp = header->_fp; - psxRegs.GPR.n.gp = header->_gp; - psxRegs.GPR.n.s0 = header->base; + psxRegs.GPR.n.ra = SWAP32(header->ret); + psxRegs.GPR.n.sp = SWAP32(header->_sp); + psxRegs.GPR.n.fp = SWAP32(header->_fp); + psxRegs.GPR.n.gp = SWAP32(header->_gp); + psxRegs.GPR.n.s0 = SWAP32(header->base); psxRegs.GPR.n.v0 = 1; psxRegs.pc = psxRegs.GPR.n.ra; -- 2.39.2