X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxbios.c;h=88f994f808870364a31e4d473e8d80edbdcd065f;hb=2db412ade2b09ca04da81d91b75bbf6475dbde5a;hp=fdac5562f62d99bf32acd2b8e64e15825ea32343;hpb=1da9b9ae28406f3bec5b2bd5905783971b991bec;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c
index fdac5562..88f994f8 100644
--- a/libpcsxcore/psxbios.c
+++ b/libpcsxcore/psxbios.c
@@ -1,6 +1,6 @@
 /***************************************************************************
  *   Copyright (C) 2019 Ryan Schultz, PCSX-df Team, PCSX team, gameblabla, *
- * 	 dmitrysmagin, senquack												   *
+ *   dmitrysmagin, senquack                                                *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -260,6 +260,8 @@ typedef struct {
 static FileDesc FDesc[32];
 static char ffile[64];
 static int nfile;
+static char cdir[8*8+8];
+static u32 floodchk;
 
 // fixed RAM offsets, SCPH1001 compatible
 #define A_TT_ExCB       0x0100
@@ -1465,7 +1467,19 @@ void psxBios_printf() { // 0x3f
 	pc0 = ra;
 }
 
-void psxBios_format() { // 0x41
+static void psxBios_cd() { // 0x40
+	const char *p, *dir = castRam8ptr(a0);
+	PSXBIOS_LOG("psxBios_%s %x(%s)\n", biosB0n[0x40], a0, dir);
+	if ((p = strchr(dir, ':')))
+		dir = ++p;
+	if (*dir == '\\')
+		dir++;
+	snprintf(cdir, sizeof(cdir), "%s", dir);
+	mips_return_c(1, 100);
+}
+
+static void psxBios_format() { // 0x41
+	PSXBIOS_LOG("psxBios_%s %x(%s)\n", biosB0n[0x41], a0, Ra0);
 	if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
 	{
 		CreateMcd(Config.Mcd1);
@@ -1486,9 +1500,9 @@ void psxBios_format() { // 0x41
 }
 
 static void psxBios_SystemErrorUnresolvedException() {
-	if (loadRam32(0xfffc) != 0x12345678) { // prevent log flood
+	if (floodchk != 0x12340a40) { // prevent log flood
 		SysPrintf("psxBios_%s called from %08x\n", biosA0n[0x40], ra);
-		storeRam32(0xfffc, 0x12345678);
+		floodchk = 0x12340a40;
 	}
 	mips_return_void_c(1000);
 }
@@ -1507,16 +1521,33 @@ static void FlushCache() {
 
 void psxBios_Load() { // 0x42
 	EXE_HEADER eheader;
+	char path[256];
+	char *pa0, *p;
 	void *pa1;
 
+	pa0 = Ra0;
 	pa1 = Ra1;
-	if (pa1 != INVALID_PTR && LoadCdromFile(Ra0, &eheader) == 0) {
+	PSXBIOS_LOG("psxBios_%s %x(%s), %x\n", biosA0n[0x42], a0, pa0, a1);
+	if (pa0 == INVALID_PTR || pa1 == INVALID_PTR) {
+		mips_return(0);
+		return;
+	}
+	if ((p = strchr(pa0, ':')))
+		pa0 = ++p;
+	if (*pa0 == '\\')
+		pa0++;
+	if (cdir[0])
+		snprintf(path, sizeof(path), "%s\\%s", cdir, (char *)pa0);
+	else
+		snprintf(path, sizeof(path), "%s", (char *)pa0);
+
+	if (LoadCdromFile(path, &eheader) == 0) {
 		memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
 		psxCpu->Clear(a1, sizeof(EXEC) / 4);
 		FlushCache();
 		v0 = 1;
 	} else v0 = 0;
-	PSXBIOS_LOG("psxBios_%s: %s, %d -> %d\n", biosA0n[0x42], Ra0, a1, v0);
+	PSXBIOS_LOG(" -> %d\n", v0);
 
 	pc0 = ra;
 }
@@ -1869,9 +1900,13 @@ void psxBios_GetRCnt() { // 03
 	PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
 #endif
 
-	a0&= 0x3;
-	if (a0 != 3) v0 = psxRcntRcount(a0);
-	else v0 = 0;
+	switch (a0 & 0x3)
+	{
+	case 0: v0 = psxRcntRcount0(); break;
+	case 1: v0 = psxRcntRcount1(); break;
+	case 2: v0 = psxRcntRcount2(); break;
+	case 3: v0 = 0; break;
+	}
 	pc0 = ra;
 }
 
@@ -1944,6 +1979,7 @@ static u32 DeliverEvent(u32 class, u32 spec) {
 			}
 		}
 	}
+	floodchk = 0;
 	use_cycles(29);
 	return ret;
 }
@@ -2055,7 +2091,11 @@ static void psxBios_TestEvent() { // 0b
 	u32 base = loadRam32(A_TT_EvCB);
 	u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
 	u32 ret = 0;
-	PSXBIOS_LOG("psxBios_%s    %x %x\n", biosB0n[0x0b], a0, status);
+
+	if (psxRegs.cycle - floodchk > 16*1024u) { // prevent log flood
+		PSXBIOS_LOG("psxBios_%s    %x %x\n", biosB0n[0x0b], a0, status);
+		floodchk = psxRegs.cycle;
+	}
 	if (status == EvStALREADY) {
 		storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
 		ret = 1;
@@ -3544,7 +3584,7 @@ void psxBiosInit() {
 	biosB0[0x3d] = psxBios_putchar;
 	//biosB0[0x3e] = psxBios_gets;
 	biosB0[0x3f] = psxBios_puts;
-	//biosB0[0x40] = psxBios_cd;
+	biosB0[0x40] = psxBios_cd;
 	biosB0[0x41] = psxBios_format;
 	biosB0[0x42] = psxBios_firstfile;
 	biosB0[0x43] = psxBios_nextfile;
@@ -3608,6 +3648,8 @@ void psxBiosInit() {
 /**/
 
 	memset(FDesc, 0, sizeof(FDesc));
+	memset(cdir, 0, sizeof(cdir));
+	floodchk = 0;
 
 	// somewhat pretend to be a SCPH1001 BIOS
 	// some games look for these and take an exception if they're missing
@@ -3732,18 +3774,12 @@ void psxBiosCnfLoaded(u32 tcb_cnt, u32 evcb_cnt, u32 stack) {
 }
 
 #define psxBios_PADpoll(pad) { \
-	PAD##pad##_startPoll(pad); \
-	pad_buf##pad[0] = 0; \
-	pad_buf##pad[1] = PAD##pad##_poll(0x42); \
-	if (!(pad_buf##pad[1] & 0x0f)) { \
-		bufcount = 32; \
-	} else { \
-		bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
-	} \
-	PAD##pad##_poll(0); \
+	int i, more_data = 0; \
+	pad_buf##pad[0] = PAD##pad##_startPoll(pad); \
+	pad_buf##pad[1] = PAD##pad##_poll(0x42, &more_data); \
 	i = 2; \
-	while (bufcount--) { \
-		pad_buf##pad[i++] = PAD##pad##_poll(0); \
+	while (more_data) { \
+		pad_buf##pad[i++] = PAD##pad##_poll(0, &more_data); \
 	} \
 }
 
@@ -3928,7 +3964,6 @@ void hleExcPadCard1(void)
 	if (loadRam32(A_PAD_IRQR_ENA)) {
 		u8 *pad_buf1 = loadRam8ptr(A_PAD_INBUF + 0);
 		u8 *pad_buf2 = loadRam8ptr(A_PAD_INBUF + 4);
-		int i, bufcount;
 
 		psxBios_PADpoll(1);
 		psxBios_PADpoll(2);
@@ -3960,8 +3995,8 @@ void psxBiosException() {
 	int i;
 
 	// save the regs
-	// $at, $v0, $v1 already saved by the mips code at A_EXCEPTION
-	for (i = 4; i < 32; i++) {
+	// $at, $v0, $v1, $ra already saved by the mips code at A_EXCEPTION
+	for (i = 4; i < 31; i++) {
 		if (i == 26) // $k0
 			continue;
 		tcb->reg[i] = SWAP32(psxRegs.GPR.r[i]);
@@ -4027,4 +4062,5 @@ void psxBiosFreeze(int Mode) {
 	bfreezes(FDesc);
 	bfreezes(ffile);
 	bfreezel(&nfile);
+	bfreezes(cdir);
 }