From 5c8119b8680a38d4571b8083a2475d3d4649b983 Mon Sep 17 00:00:00 2001 From: notaz Date: Wed, 30 Aug 2023 00:43:15 +0300 Subject: [PATCH] psxbios: implement get/setconf --- libpcsxcore/misc.c | 2 +- libpcsxcore/psxbios.c | 82 ++++++++++++++++++++++++++++++------------- libpcsxcore/psxbios.h | 2 +- 3 files changed, 60 insertions(+), 26 deletions(-) diff --git a/libpcsxcore/misc.c b/libpcsxcore/misc.c index 702f690f..a16e6428 100644 --- a/libpcsxcore/misc.c +++ b/libpcsxcore/misc.c @@ -243,7 +243,7 @@ int LoadCdrom() { getFromCnf((char *)buf + 12, "EVENT", &cnf_event); getFromCnf((char *)buf + 12, "STACK", &cnf_stack); if (Config.HLE) - psxBiosCnfLoaded(cnf_tcb, cnf_event); + psxBiosCnfLoaded(cnf_tcb, cnf_event, cnf_stack); // Read the EXE-Header READTRACK(); diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c index 734f3e39..fbd1af41 100644 --- a/libpcsxcore/psxbios.c +++ b/libpcsxcore/psxbios.c @@ -294,6 +294,9 @@ static int nfile; #define A_HEAP_END 0x9008 #define A_HEAP_FLAG 0x900c #define A_RND_SEED 0x9010 +#define A_CONF_TCB 0xb940 +#define A_CONF_EvCB 0xb944 +#define A_CONF_SP 0xb948 #define A_CD_EVENTS 0xb9b8 #define A_EXC_GP 0xf450 @@ -1713,6 +1716,23 @@ static void psxBios_CdRemove() { // 56, 72 use_cycles(30); } +static void setup_tt(u32 tcb_cnt, u32 evcb_cnt, u32 stack); + +static void psxBios_SetConf() { // 9c + PSXBIOS_LOG("psxBios_%s %x %x %x\n", biosA0n[0x9c], a0, a1, a2); + setup_tt(a1, a0, a2); + psxRegs.CP0.n.SR |= 0x401; + mips_return_void_c(500); +} + +static void psxBios_GetConf() { // 9d + PSXBIOS_LOG("psxBios_%s %x %x %x\n", biosA0n[0x9d], a0, a1, a2); + storeRam32(a0, loadRam32(A_CONF_EvCB)); + storeRam32(a1, loadRam32(A_CONF_TCB)); + storeRam32(a2, loadRam32(A_CONF_SP)); + mips_return_void_c(10); +} + void psxBios_SetMem() { // 9f u32 new = psxHu32(0x1060); @@ -2077,7 +2097,7 @@ void psxBios_OpenTh() { // 0e mips_return_c(0xffffffff, 20); return; } - PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th); + PSXBIOS_LOG("psxBios_%s -> %x\n", biosB0n[0x0e], 0xff000000 + th); tcb[th].status = SWAP32(0x4000); tcb[th].mode = SWAP32(0x1000); @@ -2093,21 +2113,15 @@ void psxBios_OpenTh() { // 0e * int CloseTh(long thread); */ -void psxBios_CloseTh() { // 0f - TCB *tcb = loadRam32ptr(A_TT_TCB); - u32 limit = loadRam32(A_TT_TCB + 4) / 0xc0u; - u32 th = a0 & 0xff; +static void psxBios_CloseTh() { // 0f + u32 tcb = loadRam32(A_TT_TCB); + u32 th = a0 & 0xffff; -#ifdef PSXBIOS_LOG - PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th); -#endif - /* The return value is always 1 (even if the handle was already closed). */ - v0 = 1; - if (th < limit && tcb[th].status == SWAP32(0x4000)) { - tcb[th].status = SWAP32(0x1000); - } + PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x0f], a0); + // in the usual bios fashion no checks, just write and return 1 + storeRam32(tcb + th * sizeof(TCB), 0x1000); - pc0 = ra; + mips_return_c(1, 11); } /* @@ -3100,12 +3114,21 @@ static void write_chain(u32 *d, u32 next, u32 handler1, u32 handler2) if (handler2) PSXMu32ref(handler2) = HLEOP(chain_hle_op(handler2)); } -static void setup_tt(u32 tcb_cnt, u32 evcb_cnt) +static void setup_tt(u32 tcb_cnt, u32 evcb_cnt, u32 stack) { u32 *ram32 = (u32 *)psxM; - u32 s_excb = 0x20, s_evcb = 0x1c * evcb_cnt; - u32 s_pcb = 4, s_tcb = 0xc0 * tcb_cnt; + u32 s_excb = 0x20, s_evcb, s_pcb = 4, s_tcb; u32 p_excb, p_evcb, p_pcb, p_tcb; + u32 i; + + PSXBIOS_LOG("setup: tcb %u, evcb %u\n", tcb_cnt, evcb_cnt); + + // the real bios doesn't care, but we just don't + // want to crash in case of garbage parameters + if (tcb_cnt > 1024) tcb_cnt = 1024; + if (evcb_cnt > 1024) evcb_cnt = 1024; + s_evcb = 0x1c * evcb_cnt; + s_tcb = 0xc0 * tcb_cnt; memset(ram32 + 0xe000/4, 0, s_excb + s_evcb + s_pcb + s_tcb + 5*4); psxBios_SysInitMemory_(0xa000e000, 0x2000); @@ -3136,6 +3159,8 @@ static void setup_tt(u32 tcb_cnt, u32 evcb_cnt) storeRam32(p_pcb, p_tcb); storeRam32(p_tcb, 0x4000); // first TCB + for (i = 1; i < tcb_cnt; i++) + storeRam32(p_tcb + sizeof(TCB) * i, 0x1000); // default events storeRam32(A_CD_EVENTS + 0x00, OpenEvent(0xf0000003, 0x0010, EvMdMARK, 0)); @@ -3143,7 +3168,10 @@ static void setup_tt(u32 tcb_cnt, u32 evcb_cnt) storeRam32(A_CD_EVENTS + 0x08, OpenEvent(0xf0000003, 0x0040, EvMdMARK, 0)); storeRam32(A_CD_EVENTS + 0x0c, OpenEvent(0xf0000003, 0x0080, EvMdMARK, 0)); storeRam32(A_CD_EVENTS + 0x10, OpenEvent(0xf0000003, 0x8000, EvMdMARK, 0)); - DeliverEvent(0xf0000003, 0x0010); + + storeRam32(A_CONF_EvCB, evcb_cnt); + storeRam32(A_CONF_TCB, tcb_cnt); + storeRam32(A_CONF_SP, stack); } static const u32 gpu_ctl_def[] = { @@ -3411,8 +3439,8 @@ void psxBiosInit() { //biosA0[0x99] = psxBios_EnableKernelIORedirection; //biosA0[0x9a] = psxBios_sys_a0_9a; //biosA0[0x9b] = psxBios_sys_a0_9b; - //biosA0[0x9c] = psxBios_SetConf; - //biosA0[0x9d] = psxBios_GetConf; + biosA0[0x9c] = psxBios_SetConf; + biosA0[0x9d] = psxBios_GetConf; //biosA0[0x9e] = psxBios_sys_a0_9e; biosA0[0x9f] = psxBios_SetMem; //biosA0[0xa0] = psxBios__boot; @@ -3614,7 +3642,8 @@ void psxBiosInit() { ram32[0x00b0/4] = HLEOP(hleop_b0); ram32[0x00c0/4] = HLEOP(hleop_c0); - setup_tt(4, 16); + setup_tt(4, 16, 0x801fff00); + DeliverEvent(0xf0000003, 0x0010); ram32[0x6ee0/4] = SWAPu32(0x0000eff0); // DCB strcpy((char *)&ram32[0xeff0/4], "bu"); @@ -3677,9 +3706,14 @@ void psxBiosInit() { void psxBiosShutdown() { } -void psxBiosCnfLoaded(u32 tcb_cnt, u32 evcb_cnt) { - if (tcb_cnt != 4 || evcb_cnt != 16) - setup_tt(tcb_cnt, evcb_cnt); +void psxBiosCnfLoaded(u32 tcb_cnt, u32 evcb_cnt, u32 stack) { + if (stack == 0) + stack = 0x801FFF00; + if (tcb_cnt != 4 || evcb_cnt != 16) { + setup_tt(tcb_cnt, evcb_cnt, stack); + DeliverEvent(0xf0000003, 0x0010); + } + storeRam32(A_CONF_SP, stack); } #define psxBios_PADpoll(pad) { \ diff --git a/libpcsxcore/psxbios.h b/libpcsxcore/psxbios.h index 2a4fa80a..4ebbd2b6 100644 --- a/libpcsxcore/psxbios.h +++ b/libpcsxcore/psxbios.h @@ -38,7 +38,7 @@ void psxBiosInit(); void psxBiosShutdown(); void psxBiosException(); void psxBiosFreeze(int Mode); -void psxBiosCnfLoaded(u32 tcbs, u32 events); +void psxBiosCnfLoaded(u32 tcb_cnt, u32 evcb_cnt, u32 sp); void psxBiosSetupBootState(void); extern void (*biosA0[256])(); -- 2.39.2