#include "sio.h"
#include "psxhle.h"
#include "psxinterpreter.h"
+#include "psxevents.h"
+#include "cdrom.h"
+#include <stdarg.h>
#include <zlib.h>
-#if (defined(__GNUC__) && __GNUC__ >= 5) || defined(__clang__)
-#pragma GCC diagnostic ignored "-Wpointer-sign"
-#endif
-
#ifndef PSXBIOS_LOG
//#define PSXBIOS_LOG printf
#define PSXBIOS_LOG(...)
"dev_card_close", "dev_card_firstfile", "dev_card_nextfile","dev_card_erase",
"dev_card_undelete","dev_card_format", "dev_card_rename", "dev_card_6f",
// 0x70
- "_bu_init", "_96_init", "CdRemove", "sys_a0_73",
+ "_bu_init", "CdInit", "CdRemove", "sys_a0_73",
"sys_a0_74", "sys_a0_75", "sys_a0_76", "sys_a0_77",
"_96_CdSeekL", "sys_a0_79", "sys_a0_7a", "sys_a0_7b",
"_96_CdGetStatus", "sys_a0_7d", "_96_CdRead", "sys_a0_7f",
"sys_a0_8c", "sys_a0_8d", "sys_a0_8e", "sys_a0_8f",
// 0x90
"sys_a0_90", "sys_a0_91", "sys_a0_92", "sys_a0_93",
- "sys_a0_94", "sys_a0_95", "AddCDROMDevice", "AddMemCardDevide",
+ "sys_a0_94", "CdReset", "AddCDROMDevice", "AddMemCardDevide",
"DisableKernelIORedirection", "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
"SetConf", "GetConf", "sys_a0_9e", "SetMem",
// 0xa0
#define A_HEAP_BASE 0x9000
#define A_HEAP_SIZE 0x9004
#define A_HEAP_END 0x9008
-#define A_HEAP_FLAG 0x900c
+#define A_HEAP_INIT_FLG 0x900c
#define A_RND_SEED 0x9010
+#define A_HEAP_FRSTCHNK 0xb060
+#define A_HEAP_CURCHNK 0xb064
#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
+#define A_A0_TRAPS 0x1010
+#define A_B0_TRAPS 0x2010
+#define A_C0_TRAPS 0x3010
+#define A_B0_5B_TRAP 0x43d0
+
#define HLEOP(n) SWAPu32((0x3b << 26) | (n));
+static u8 loadRam8(u32 addr)
+{
+ assert(!(addr & 0x5f800000));
+ return psxM[addr & 0x1fffff];
+}
+
static u32 loadRam32(u32 addr)
{
assert(!(addr & 0x5f800000));
ra = 0x80001000;
psxRegs.CP0.n.SR &= ~0x404; // disable interrupts
+ assert(psxRegs.cpuInRecursion <= 1);
+ psxRegs.cpuInRecursion++;
psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, PTR_1);
- while (pc0 != 0x80001000 && ++lim < 1000000)
+ while (pc0 != 0x80001000 && ++lim < 0x100000)
psxCpu->ExecuteBlock(EXEC_CALLER_HLE);
psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, PTR_1);
+ psxRegs.cpuInRecursion--;
- if (lim == 1000000)
+ if (lim == 0x100000)
PSXBIOS_LOG("softCall @%x hit lim\n", pc);
ra = sra;
psxRegs.CP0.n.SR |= ssr & 0x404;
return;
ra = 0x80001000;
+ psxRegs.cpuInRecursion++;
psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, PTR_1);
- while (!returned_from_exception() && pc0 != 0x80001000 && ++lim < 1000000)
+ while (!returned_from_exception() && pc0 != 0x80001000 && ++lim < 0x100000)
psxCpu->ExecuteBlock(EXEC_CALLER_HLE);
psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, PTR_1);
+ psxRegs.cpuInRecursion--;
- if (lim == 1000000)
+ if (lim == 0x100000)
PSXBIOS_LOG("softCallInException @%x hit lim\n", pc);
if (pc0 == 0x80001000)
ra = sra;
}
-static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func);
-static u32 DeliverEvent(u32 class, u32 spec);
-static u32 UnDeliverEvent(u32 class, u32 spec);
+static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func);
+static void EnableEvent(u32 ev, int do_log);
+static u32 DeliverEvent(u32 class, u32 spec);
+static u32 UnDeliverEvent(u32 class, u32 spec);
static void CloseEvent(u32 ev);
/* *
pc0 = ra;
}
-void psxBios_todigit(void) // 0x0a
+static u32 do_todigit(u32 c)
{
- int c = a0;
-#ifdef PSXBIOS_LOG
- PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
-#endif
c &= 0xFF;
if (c >= 0x30 && c < 0x3A) {
c -= 0x30;
c = c - 0x41 + 10;
}
else if (c >= 0x80) {
+ log_unhandled("todigit %02x\n", c);
c = -1;
}
else
{
c = 0x0098967F;
}
- v0 = c;
- pc0 = ra;
+ use_cycles(40);
+ return c;
+}
+
+static void psxBios_todigit(void) // 0x0a
+{
+ mips_return(do_todigit(a0));
+ PSXBIOS_LOG("psxBios_%s '%c' -> %u\n", biosA0n[0x0a], a0, v0);
+}
+
+static void do_strtol(char *p, void *end_, u32 base, int can_neg) {
+ s32 n = 0, f = 0, t;
+ u32 *end = end_;
+
+ use_cycles(12);
+ if (p == INVALID_PTR) {
+ mips_return(0);
+ return;
+ }
+
+ for (; (0x09 <= *p && *p <= '\r') || *p == ' '; p++)
+ use_cycles(9);
+ if (can_neg) {
+ for (; *p == '-'; f = 1, p++)
+ use_cycles(4);
+ }
+ if (base == 0 || base > 36)
+ base = 10;
+ if (*p == '0') {
+ switch (*p++) {
+ case 'b': case 'B': base = 2; break;
+ case 'x': case 'X': base = 16; break;
+ }
+ }
+ else if (*p == 'o' || *p == 'O') {
+ base = 8;
+ p++;
+ }
+
+ for (; (t = do_todigit(*p)) < base; p++) {
+ n = n * base + t;
+ use_cycles(12);
+ }
+
+ n = (f ? -n : n);
+ if (end != INVALID_PTR)
+ *end = SWAP32(a0 + (p - Ra0));
+ mips_return_c(n, 100);
+}
+
+static void psxBios_strtoul() { // 0x0c
+ do_strtol(a0 ? Ra0 : INVALID_PTR, a1 ? Ra1 : INVALID_PTR, a2, 0);
+ PSXBIOS_LOG("psxBios_%s %s (%x), %x, %x -> 0x%x\n",
+ biosA0n[0x0c], a0 ? Ra0 : NULL, a0, a1, a2, v0);
+}
+
+static void psxBios_strtol() { // 0x0d
+ do_strtol(a0 ? Ra0 : INVALID_PTR, a1 ? Ra1 : INVALID_PTR, a2, 1);
+ PSXBIOS_LOG("psxBios_%s %s (%x), %x, %x -> 0x%x\n",
+ biosA0n[0x0d], a0 ? Ra0 : NULL, a0, a1, a2, v0);
}
void psxBios_abs() { // 0x0e
s32 n = 0, f = 0;
char *p = (char *)Ra0;
+ if (p == INVALID_PTR) {
+ mips_return(0);
+ return;
+ }
+
for (;;p++) {
switch (*p) {
case ' ': case '\t': continue;
v0 = (f ? -n : n);
pc0 = ra;
+ PSXBIOS_LOG("psxBios_%s %s (%x) -> 0x%x\n", biosA0n[0x10], Ra0, a0, v0);
}
void psxBios_atol() { // 0x11
}
void psxBios_strcat() { // 0x15
- char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
+ u8 *p2 = (u8 *)Ra1;
+ u32 p1 = a0;
-#ifdef PSXBIOS_LOG
- PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
-#endif
- if (a0 == 0 || a1 == 0)
+ PSXBIOS_LOG("psxBios_%s %s (%x), %s (%x)\n", biosA0n[0x15], Ra0, a0, Ra1, a1);
+ if (a0 == 0 || a1 == 0 || p2 == INVALID_PTR)
{
- v0 = 0;
- pc0 = ra;
+ mips_return_c(0, 6);
return;
}
- while (*p1++);
- --p1;
- while ((*p1++ = *p2++) != '\0');
+ while (loadRam8(p1)) {
+ use_cycles(4);
+ p1++;
+ }
+ for (; *p2; p1++, p2++)
+ storeRam8(p1, *p2);
+ storeRam8(p1, 0);
- v0 = a0; pc0 = ra;
+ mips_return_c(a0, 22);
}
void psxBios_strncat() { // 0x16
void psxBios_strcpy() { // 0x19
char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
+ PSXBIOS_LOG("psxBios_%s %x, %s (%x)\n", biosA0n[0x19], a0, p2, a1);
if (a0 == 0 || a1 == 0)
{
v0 = 0;
void psxBios_strstr() { // 0x24
char *p = (char *)Ra0, *p1, *p2;
+ PSXBIOS_LOG("psxBios_%s %s (%x), %s (%x)\n", biosA0n[0x24], p, a0, Ra1, a1);
while (*p != '\0') {
p1 = p;
if (*p2 == '\0') {
v0 = a0 + (p - (char *)Ra0);
pc0 = ra;
+ PSXBIOS_LOG(" -> %x\n", v0);
return;
}
- p++;
+ // bug: skips the whole matched substring + 1
+ p = p1 + 1;
}
v0 = 0; pc0 = ra;
pc0 = ra;
}
-// this isn't how the real bios works, but maybe good enough
+static int malloc_heap_grow(u32 size) {
+ u32 heap_addr, heap_end, heap_addr_new;
+
+ heap_addr = loadRam32(A_HEAP_BASE);
+ heap_end = loadRam32(A_HEAP_END);
+ heap_addr_new = heap_addr + 4 + size;
+ if (heap_addr_new >= heap_end)
+ return -1;
+ storeRam32(A_HEAP_BASE, heap_addr_new);
+ storeRam32(heap_addr - 4, size | 1);
+ storeRam32(heap_addr + size, ~1); // terminator
+ return 0;
+}
+
static void psxBios_malloc() { // 0x33
- u32 *heap_addr, *heap_end;
- u32 *chunk, *newchunk = NULL;
- unsigned int dsize = 0, csize, cstat;
- int colflag;
- PSXBIOS_LOG("psxBios_%s %x\n", biosA0n[0x33], a0);
- heap_addr = loadRam32ptr(A_HEAP_BASE);
- heap_end = loadRam32ptr(A_HEAP_END);
- if (heap_addr >= heap_end) {
- v0 = 0;
- pc0 = ra;
- return;
- }
+ u32 size = (a0 + 3) & ~3;
+ u32 limit = 32*1024;
+ u32 tries = 2, i;
+ u32 ret;
- // scan through heap and combine free chunks of space
- chunk = heap_addr;
- colflag = 0;
- while(chunk < heap_end) {
- // get size and status of actual chunk
- csize = ((u32)*chunk) & 0xfffffffc;
- cstat = ((u32)*chunk) & 1;
-
- // most probably broken heap descriptor
- // this fixes Burning Road
- if (*chunk == 0) {
- newchunk = chunk;
- dsize = ((uptr)heap_end - (uptr)chunk) - 4;
- colflag = 1;
- break;
+ PSXBIOS_LOG("psxBios_%s %d\n", biosA0n[0x33], a0);
+
+ if (!loadRam32(A_HEAP_INIT_FLG)) {
+ u32 heap_addr = loadRam32(A_HEAP_BASE);
+ storeRam32(heap_addr, ~1);
+ storeRam32(A_HEAP_FRSTCHNK, heap_addr);
+ storeRam32(A_HEAP_CURCHNK, heap_addr);
+ storeRam32(A_HEAP_BASE, heap_addr + 4);
+ if (malloc_heap_grow(size)) {
+ PSXBIOS_LOG("malloc: init OOM\n");
+ mips_return_c(0, 20);
+ return;
}
+ storeRam32(A_HEAP_INIT_FLG, 1);
+ }
- // it's a free chunk
- if(cstat == 1) {
- if(colflag == 0) {
- newchunk = chunk;
- dsize = csize;
- colflag = 1; // let's begin a new collection of free memory
+ for (i = 0; tries > 0 && i < limit; i++)
+ {
+ u32 chunk = loadRam32(A_HEAP_CURCHNK);
+ u32 chunk_hdr = loadRam32(chunk);
+ u32 next_chunk = chunk + 4 + (chunk_hdr & ~3);
+ u32 next_chunk_hdr = loadRam32(next_chunk);
+ use_cycles(20);
+ //printf(" c %08x %08x\n", chunk, chunk_hdr);
+ if (chunk_hdr & 1) {
+ // free chunk
+ if (chunk_hdr > (size | 1)) {
+ // split
+ u32 p2size = (chunk_hdr & ~3) - size - 4;
+ storeRam32(chunk + 4 + size, p2size | 1);
+ chunk_hdr = size | 1;
+ }
+ if (chunk_hdr == (size | 1)) {
+ storeRam32(chunk, size);
+ break;
+ }
+ // chunk too small
+ if (next_chunk_hdr & 1) {
+ // merge
+ u32 msize = (chunk_hdr & ~3) + 4 + (next_chunk_hdr & ~3);
+ storeRam32(chunk, msize | 1);
+ continue;
}
- else dsize += (csize+4); // add the new size including header
}
- // not a free chunk: did we start a collection ?
+ if (chunk_hdr == ~1) {
+ // last chunk
+ if (tries == 2)
+ storeRam32(A_HEAP_CURCHNK, loadRam32(A_HEAP_FRSTCHNK));
+ tries--;
+ }
else {
- if(colflag == 1) { // collection is over
- colflag = 0;
- *newchunk = SWAP32(dsize | 1);
- }
+ // go to the next chunk
+ storeRam32(A_HEAP_CURCHNK, next_chunk);
}
-
- // next chunk
- chunk = (u32*)((uptr)chunk + csize + 4);
- }
- // if neccessary free memory on end of heap
- if (colflag == 1)
- *newchunk = SWAP32(dsize | 1);
-
- chunk = heap_addr;
- csize = ((u32)*chunk) & 0xfffffffc;
- cstat = ((u32)*chunk) & 1;
- dsize = (a0 + 3) & 0xfffffffc;
-
- // exit on uninitialized heap
- if (chunk == NULL) {
- printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
- v0 = 0;
- pc0 = ra;
- return;
- }
-
- // search an unused chunk that is big enough until the end of the heap
- while ((dsize > csize || cstat==0) && chunk < heap_end ) {
- chunk = (u32*)((uptr)chunk + csize + 4);
-
- // catch out of memory
- if(chunk >= heap_end) {
- printf("malloc %x,%x: Out of memory error!\n",
- v0, a0);
- v0 = 0; pc0 = ra;
- return;
- }
-
- csize = ((u32)*chunk) & 0xfffffffc;
- cstat = ((u32)*chunk) & 1;
}
- // allocate memory
- if(dsize == csize) {
- // chunk has same size
- *chunk &= 0xfffffffc;
- } else if (dsize > csize) {
- v0 = 0; pc0 = ra;
- return;
- } else {
- // split free chunk
- *chunk = SWAP32(dsize);
- newchunk = (u32*)((uptr)chunk + dsize + 4);
- *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
+ if (i == limit)
+ ret = 0;
+ else if (tries == 0 && malloc_heap_grow(size))
+ ret = 0;
+ else {
+ u32 chunk = loadRam32(A_HEAP_CURCHNK);
+ storeRam32(chunk, loadRam32(chunk) & ~3);
+ ret = chunk + 4;
}
- // return pointer to allocated memory
- v0 = ((uptr)chunk - (uptr)psxM) + 4;
- v0|= 0x80000000;
- //printf ("malloc %x,%x\n", v0, a0);
- pc0 = ra;
+ PSXBIOS_LOG(" -> %08x\n", ret);
+ mips_return_c(ret, 40);
}
static void psxBios_free() { // 0x34
- PSXBIOS_LOG("psxBios_%s %x (%x bytes)\n", biosA0n[0x34], a0, loadRam32(a0 - 4));
+ PSXBIOS_LOG("psxBios_%s %x (%d bytes)\n", biosA0n[0x34], a0, loadRam32(a0 - 4));
storeRam32(a0 - 4, loadRam32(a0 - 4) | 1); // set chunk to free
mips_return_void_c(5);
}
storeRam32(A_HEAP_BASE, a0);
storeRam32(A_HEAP_SIZE, a1);
storeRam32(A_HEAP_END, a0 + (a1 & ~3) + 4);
- storeRam32(A_HEAP_FLAG, 0);
+ storeRam32(A_HEAP_INIT_FLG, 0);
storeRam32(a0, 0);
mips_return_void_c(14);
static void psxBios_printf_psxout() { // 0x3f
char tmp[1024];
char tmp2[1024];
- u32 save[4];
+ u32 save[4] = { 0, };
char *ptmp = tmp;
int n=1, i=0, j;
void *psp;
}
static void psxBios_cd() { // 0x40
- const char *p, *dir = castRam8ptr(a0);
+ const char *p, *dir = Ra0;
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);
+ if (dir != INVALID_PTR) {
+ if ((p = strchr(dir, ':')))
+ dir = ++p;
+ if (*dir == '\\')
+ dir++;
+ snprintf(cdir, sizeof(cdir), "%s", dir);
+ }
mips_return_c(1, 100);
}
use_cycles(500);
}
+// you likely want to mask irqs before calling these
+static u8 cdrom_sync(int do_ack)
+{
+ u8 r = 0;
+ if (psxRegs.interrupt & (1u << PSXINT_CDR)) {
+ if ((s32)(psxRegs.cycle - event_cycles[PSXINT_CDR]) < 0)
+ psxRegs.cycle = event_cycles[PSXINT_CDR] + 1;
+ irq_test(&psxRegs.CP0);
+ }
+ if (do_ack) {
+ cdrWrite0(1);
+ r = cdrRead3() & 0x1f;
+ cdrWrite3(0x5f); // ack; clear params
+ }
+ return r;
+}
+
+static void cdrom_cmd_and_wait(u8 cmd, int arg_cnt, int resp_cnt, ...)
+{
+ va_list ap;
+
+ cdrom_sync(0);
+ cdrWrite0(0);
+ va_start(ap, resp_cnt);
+ while (arg_cnt-- > 0)
+ cdrWrite2(va_arg(ap, u32));
+ va_end(ap);
+ cdrWrite1(cmd);
+
+ if (resp_cnt > 0) {
+ u8 r = cdrom_sync(1);
+ assert(r == 3); (void)r;
+ cdrRead1();
+ }
+ if (resp_cnt > 1) {
+ u8 r = cdrom_sync(1);
+ assert(r == 2); (void)r;
+ cdrRead1();
+ }
+}
+
/*
* long Load(char *name, struct EXEC *header);
*/
void psxBios_Load() { // 0x42
+ u8 time[3] = { 2, 0, 0x16 };
EXE_HEADER eheader;
char path[256];
char *pa0, *p;
else
snprintf(path, sizeof(path), "%s", (char *)pa0);
- if (LoadCdromFile(path, &eheader) == 0) {
+ if (LoadCdromFile(path, &eheader, time) == 0) {
memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
psxCpu->Clear(a1, sizeof(EXEC) / 4);
FlushCache();
PSXBIOS_LOG(" -> %d\n", v0);
pc0 = ra;
+
+ // set the cdrom to a state of just after exe read
+ psxRegs.CP0.n.SR &= ~0x404;
+ cdrom_sync(1);
+ cdrWrite0(1);
+ cdrWrite2(0x1f); // unmask
+ cdrom_cmd_and_wait(0x0e, 1, 1, 0x80u); // CdlSetmode
+ cdrom_cmd_and_wait(0x02, 3, 1, time[0], time[1], time[2]); // CdlSetloc
+ cdrom_cmd_and_wait(0x15, 0, 2); // CdlSeekL
+ psxHwWrite16(0x1f801070, ~4);
+ MTC0(&psxRegs, 12, psxRegs.CP0.n.SR | 0x404);
}
/*
pc0 = ra;
}
+static void gpu_sync() {
+ // not implemented...
+ // might be problematic to do because of Config.GpuListWalking
+ if (psxRegs.interrupt & (1u << PSXINT_GPUDMA))
+ log_unhandled("gpu_sync with active dma\n");
+ mips_return_c(0, 21);
+}
+
void psxBios_mem2vram() { // 0x47
int size;
gpuSyncPluginSR(); // flush
void psxBios_GPU_cw() { // 0x49
GPU_writeData(a0);
gpuSyncPluginSR();
- v0 = HW_GPU_STATUS;
- pc0 = ra;
+ use_cycles(13);
+ gpu_sync();
}
void psxBios_GPU_cwb() { // 0x4a
pc0 = ra;
}
-void psxBios__96_init() { // 71
-#ifdef PSXBIOS_LOG
- PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
-#endif
-
- pc0 = ra;
-}
-
static void write_chain(u32 *d, u32 next, u32 handler1, u32 handler2);
static void psxBios_SysEnqIntRP_(u32 priority, u32 chain_eptr);
static void psxBios_SysDeqIntRP_(u32 priority, u32 chain_rm_eptr);
+static void psxBios_EnqueueCdIntr_(void)
+{
+ u32 *ram32 = (u32 *)psxM;
+
+ // traps should already be installed by write_chain()
+ ram32[0x91d0/4] = 0;
+ ram32[0x91d4/4] = SWAP32(0xbfc0506c);
+ ram32[0x91d8/4] = SWAP32(0xbfc04dec);
+ psxBios_SysEnqIntRP_(0, 0x91d0);
+ ram32[0x91e0/4] = 0;
+ ram32[0x91e4/4] = SWAP32(0xbfc050a4);
+ ram32[0x91e8/4] = SWAP32(0xbfc04fbc);
+ psxBios_SysEnqIntRP_(0, 0x91e0);
+ use_cycles(31);
+}
+
+static void setup_cd_irq_and_events(void)
+{
+ u16 specs[] = { 0x10, 0x20, 0x40, 0x80, 0x8000 };
+ size_t i;
+
+ psxBios_EnqueueCdIntr_();
+
+ for (i = 0; i < sizeof(specs) / sizeof(specs[0]); i++) {
+ u32 h = OpenEvent(0xf0000003, specs[i], EvMdMARK, 0);
+ // no error checks
+ storeRam32(A_CD_EVENTS + i * 4, h);
+ EnableEvent(h, 0);
+ }
+}
+
+static void psxBios_CdReset_() {
+ psxRegs.CP0.n.SR &= ~0x404; // disable interrupts
+
+ cdrom_sync(1);
+ cdrWrite0(1);
+ cdrWrite2(0x1f); // unmask
+ cdrom_cmd_and_wait(0x0a, 0, 2); // CdlReset
+ cdrom_cmd_and_wait(0x0e, 1, 1, 0x80u); // CdlSetmode
+
+ // todo(?): should read something (iso root directory?)
+ // from { 0, 2, 16 } to somewhere and pause
+
+ mips_return(1);
+ psxHwWrite16(0x1f801070, ~4);
+ MTC0(&psxRegs, 12, psxRegs.CP0.n.SR | 0x404);
+ DeliverEvent(0xf0000003, 0x0020);
+}
+
+static void psxBios_CdInit() { // 54, 71
+ PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
+ setup_cd_irq_and_events();
+
+ psxBios_CdReset_();
+
+ // this function takes pretty much forever
+ mips_return_c(0, 50000*11);
+}
+
static void psxBios_DequeueCdIntr_() {
psxBios_SysDeqIntRP_(0, 0x91d0);
psxBios_SysDeqIntRP_(0, 0x91e0);
use_cycles(16);
}
+static void psxBios_CdReset() { // 95
+ PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x95]);
+ psxBios_CdReset_();
+}
+
+static void psxBios_EnqueueCdIntr() { // a2
+ PSXBIOS_LOG("psxBios_%s\n", biosA0n[0xa2]);
+ psxBios_EnqueueCdIntr_();
+ // return value comes from SysEnqIntRP() insternal call
+}
+
static void psxBios_DequeueCdIntr() { // a3
PSXBIOS_LOG("psxBios_%s\n", biosA0n[0xa3]);
psxBios_DequeueCdIntr_();
mips_return_c(ret, 15);
}
-static void psxBios_EnableEvent() { // 0c
+static void EnableEvent(u32 ev, int do_log) {
u32 base = loadRam32(A_TT_EvCB);
- u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
- PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x0c], a0, status);
+ u32 status = loadRam32(base + (ev & 0xffff) * sizeof(EvCB) + 4);
+ if (do_log)
+ PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x0c], ev, status);
if (status != EvStUNUSED)
- storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
+ storeRam32(base + (ev & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
+}
+static void psxBios_EnableEvent() { // 0c
+ EnableEvent(a0, 1);
mips_return_c(1, 15);
}
}
static void bufile(const u8 *mcd_data, u32 dir_) {
- struct DIRENTRY *dir = (struct DIRENTRY *)castRam8ptr(dir_);
+ struct DIRENTRY *dir = (struct DIRENTRY *)PSXM(dir_);
const char *pfile = ffile + 5;
const u8 *data = mcd_data;
int i = 0, match = 0;
u32 head = 0;
v0 = 0;
+ if (dir == INVALID_PTR)
+ return;
+
for (; nfile <= 15 && !match; nfile++) {
const char *name;
}
for (; nfile <= 15; nfile++, blocks++) {
const u8 *data2 = mcd_data + 128 * nfile;
- const char *name = data2 + 0x0a;
+ const char *name = (const char *)data2 + 0x0a;
if ((data2[0] & 0xF0) != 0x50 || name[0])
break;
}
*/
static void psxBios_firstfile() { // 42
- char *pa0 = castRam8ptr(a0);
+ char *pa0 = Ra0;
PSXBIOS_LOG("psxBios_%s %s %x\n", biosB0n[0x42], pa0, a1);
v0 = 0;
+ if (pa0 != INVALID_PTR)
{
snprintf(ffile, sizeof(ffile), "%s", pa0);
if (ffile[5] == 0)
if (!strncmp(pa0, "bu00", 4)) {
// firstfile() calls _card_read() internally, so deliver it's event
DeliverEvent(0xf0000011, 0x0004);
- bufile(Mcd1Data, a1);
+ bufile((u8 *)Mcd1Data, a1);
} else if (!strncmp(pa0, "bu10", 4)) {
// firstfile() calls _card_read() internally, so deliver it's event
DeliverEvent(0xf0000011, 0x0004);
- bufile(Mcd2Data, a1);
+ bufile((u8 *)Mcd2Data, a1);
}
}
v0 = 0;
if (!strncmp(ffile, "bu00", 4))
- bufile(Mcd1Data, a0);
+ bufile((u8 *)Mcd1Data, a0);
else if (!strncmp(ffile, "bu10", 4))
- bufile(Mcd2Data, a0);
+ bufile((u8 *)Mcd2Data, a0);
pc0 = ra;
}
psxHwWrite16(0x1f801100 + i*0x10 + 8, 0);
psxHwWrite16(0x1f801100 + i*0x10 + 0, 0);
}
- psxBios_SysEnqIntRP_(a0, 0x6d88);
+ for (i = 0; i < 4; i++)
+ psxBios_SysEnqIntRP_(a0, 0x6d58 + i * 0x10);
mips_return_c(0, 9);
}
ram32[0x0150/4] = SWAPu32(0x6ee0); // DCB - device control
ram32[0x0154/4] = SWAPu32(0x0320); // DCB size
- storeRam32(p_excb + 0*4, 0x91e0); // chain0
+ storeRam32(p_excb + 0*4, 0x0000); // chain0
storeRam32(p_excb + 2*4, 0x6d88); // chain1
storeRam32(p_excb + 4*4, 0x0000); // chain2
storeRam32(p_excb + 6*4, 0x6d98); // chain3
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));
- storeRam32(A_CD_EVENTS + 0x04, OpenEvent(0xf0000003, 0x0020, EvMdMARK, 0));
- 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));
+ psxBios_SysEnqIntRP_(0, 0x6da8);
+ setup_cd_irq_and_events();
storeRam32(A_CONF_EvCB, evcb_cnt);
storeRam32(A_CONF_TCB, tcb_cnt);
GPU_writeStatus(gpu_ctl_def[i]);
for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++)
GPU_writeData(gpu_data_def[i]);
- HW_GPU_STATUS |= SWAP32(PSXGPU_nBUSY);
// spu
for (i = 0x1f801d80; i < sizeof(spu_config) / sizeof(spu_config[0]); i++)
SPU_writeRegister(0x1f801d80 + i*2, spu_config[i], psxRegs.cycle);
}
+static void hleExc0_0_1();
+static void hleExc0_0_2();
+static void hleExc0_1_1();
+static void hleExc0_1_2();
+
#include "sjisfont.h"
void psxBiosInit() {
u32 *ptr, *ram32, *rom32;
+ char *romc;
int i;
uLongf len;
+ psxRegs.biosBranchCheck = ~0;
+
memset(psxM, 0, 0x10000);
for(i = 0; i < 256; i++) {
biosA0[i] = NULL;
biosA0[0x3e] = biosB0[0x3f] = psxBios_puts_psxout;
biosA0[0x3f] = psxBios_printf_psxout;
- if (!Config.HLE) return;
+ if (!Config.HLE) {
+ char verstr[0x24+1];
+ rom32 = (u32 *)psxR;
+ memcpy(verstr, psxR + 0x12c, 0x24);
+ verstr[0x24] = 0;
+ SysPrintf("BIOS: %08x, '%s', '%c'\n", SWAP32(rom32[0x100/4]),
+ verstr, psxR[0x7ff52]);
+ return;
+ }
for(i = 0; i < 256; i++) {
if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
biosA0[0x09] = psxBios_putc;
biosA0[0x0a] = psxBios_todigit;
//biosA0[0x0b] = psxBios_atof;
- //biosA0[0x0c] = psxBios_strtoul;
- //biosA0[0x0d] = psxBios_strtol;
+ biosA0[0x0c] = psxBios_strtoul;
+ biosA0[0x0d] = psxBios_strtol;
biosA0[0x0e] = psxBios_abs;
biosA0[0x0f] = psxBios_labs;
biosA0[0x10] = psxBios_atoi;
biosA0[0x51] = psxBios_LoadExec;
//biosA0[0x52] = psxBios_GetSysSp;
//biosA0[0x53] = psxBios_sys_a0_53;
- //biosA0[0x54] = psxBios__96_init_a54;
+ biosA0[0x54] = psxBios_CdInit;
//biosA0[0x55] = psxBios__bu_init_a55;
biosA0[0x56] = psxBios_CdRemove;
//biosA0[0x57] = psxBios_sys_a0_57;
//biosA0[0x6e] = psxBios_dev_card_rename;
//biosA0[0x6f] = psxBios_dev_card_6f;
biosA0[0x70] = psxBios__bu_init;
- biosA0[0x71] = psxBios__96_init;
+ biosA0[0x71] = psxBios_CdInit;
biosA0[0x72] = psxBios_CdRemove;
//biosA0[0x73] = psxBios_sys_a0_73;
//biosA0[0x74] = psxBios_sys_a0_74;
biosA0[0x92] = hleExc0_1_1;
biosA0[0x93] = hleExc0_0_1;
//biosA0[0x94] = psxBios_sys_a0_94;
- //biosA0[0x95] = psxBios_sys_a0_95;
+ biosA0[0x95] = psxBios_CdReset;
//biosA0[0x96] = psxBios_AddCDROMDevice;
//biosA0[0x97] = psxBios_AddMemCardDevide;
//biosA0[0x98] = psxBios_DisableKernelIORedirection;
biosA0[0x9f] = psxBios_SetMem;
//biosA0[0xa0] = psxBios__boot;
//biosA0[0xa1] = psxBios_SystemError;
- //biosA0[0xa2] = psxBios_EnqueueCdIntr;
+ biosA0[0xa2] = psxBios_EnqueueCdIntr;
biosA0[0xa3] = psxBios_DequeueCdIntr;
//biosA0[0xa4] = psxBios_sys_a0_a4;
//biosA0[0xa5] = psxBios_ReadSector;
rom32 = (u32 *)psxR;
rom32[0x100/4] = SWAP32(0x19951204);
rom32[0x104/4] = SWAP32(3);
- strcpy(psxR + 0x108, "PCSX authors");
- 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");
+ romc = (char *)psxR;
+ strcpy(romc + 0x108, "PCSX authors");
+ strcpy(romc + 0x12c, "CEX-3000 PCSX HLE"); // see psxBios_GetSystemInfo
+ strcpy(romc + 0x7ff32, "System ROM Version 2.2 12/04/95 A");
+ strcpy(romc + 0x7ff54, "GPL-2.0-or-later");
// fonts
len = 0x80000 - 0x66000;
strcpy((char *)&ram32[0xeff0/4], "bu");
// default exception handler chains
+ // see also setup_cd_irq_and_events()
write_chain(&ram32[0x91e0/4], 0x91d0, 0xbfc050a4, 0xbfc04fbc); // chain0.e0
write_chain(&ram32[0x91d0/4], 0x6da8, 0xbfc0506c, 0xbfc04dec); // chain0.e1
write_chain(&ram32[0x6da8/4], 0, 0, 0x1a00); // chain0.e2
// fill the api jumptables with fake entries as some games patch them
// (or rather the funcs listed there)
+ // also trap the destination as some "Cheats Edition" thing overrides the
+ // dispatcher with a wrapper and then jumps to the table entries directly
ptr = (u32 *)&psxM[A_A0_TABLE];
- for (i = 0; i < 256; i++)
- ptr[i] = SWAP32(0x1000);
-
+ for (i = 0; i < 256; i++) {
+ ptr[i] = SWAP32(A_A0_TRAPS + i*4);
+ ram32[A_A0_TRAPS/4 + i] = HLEOP(hleop_a0t);
+ }
ptr = (u32 *)&psxM[A_B0_TABLE];
- for (i = 0; i < 256; i++)
- ptr[i] = SWAP32(0x2000);
+ for (i = 0; i < 256; i++) {
+ ptr[i] = SWAP32(A_B0_TRAPS + i*4);
+ ram32[A_B0_TRAPS/4 + i] = HLEOP(hleop_b0t);
+ }
// B(5b) is special because games patch (sometimes even jump to)
// code at fixed offsets from it, nocash lists offsets:
// patch: +3d8, +4dc, +594, +62c, +9c8, +1988
// call: +7a0=4b70, +884=4c54, +894=4c64
- ptr[0x5b] = SWAP32(0x43d0);
+ ptr[0x5b] = SWAP32(A_B0_5B_TRAP); // 0x43d0
+ ram32[A_B0_5B_TRAP/4] = HLEOP(hleop_b0t);
+
ram32[0x4b70/4] = SWAP32(0x03e00008); // jr $ra // setPadOutputBuf
ram32[0x4c54/4] = SWAP32(0x240e0001); // mov $t6, 1
ram32[0x4c68/4] = SWAP32(0xac000000 + A_PAD_IRQR_ENA); // sw $0, ...
ptr = (u32 *)&psxM[A_C0_TABLE];
- for (i = 0; i < 256/2; i++)
- ptr[i] = SWAP32(0x3000);
+ for (i = 0; i < 256/2; i++) {
+ ptr[i] = SWAP32(A_C0_TRAPS + i*4);
+ ram32[A_C0_TRAPS/4 + i] = HLEOP(hleop_c0t);
+ }
ptr[6] = SWAP32(A_EXCEPTION);
// more HLE traps
- ram32[0x1000/4] = HLEOP(hleop_dummy);
- ram32[0x2000/4] = HLEOP(hleop_dummy);
- ram32[0x3000/4] = HLEOP(hleop_dummy);
+ ram32[A_A0_TRAPS/4 - 1] = HLEOP(hleop_dummy);
+ ram32[A_B0_TRAPS/4 - 1] = HLEOP(hleop_dummy);
+ ram32[A_C0_TRAPS/4 - 1] = HLEOP(hleop_dummy);
+ ram32[0x7ffc/4] = HLEOP(hleop_dummy);
ram32[0x8000/4] = HLEOP(hleop_execret);
ram32[A_EEXIT_PTR/4] = SWAP32(A_EEXIT_DEF);
#define psxBios_PADpoll(pad) { \
int i, more_data = 0; \
- pad_buf##pad[0] = PAD##pad##_startPoll(pad); \
+ PAD##pad##_startPoll(pad); \
pad_buf##pad[1] = PAD##pad##_poll(0x42, &more_data); \
+ pad_buf##pad[0] = more_data ? 0 : 0xff; \
+ PAD##pad##_poll(0, &more_data); \
i = 2; \
while (more_data) { \
pad_buf##pad[i++] = PAD##pad##_poll(0, &more_data); \
// hleExc0_{0,1}* are usually removed by A(56)/A(72) on the game's startup,
// so this is only partially implemented
-void hleExc0_0_1() // A(93h) - CdromDmaIrqFunc2
+static void hleExc0_0_1() // A(93h) - CdromDmaIrqFunc2
{
u32 cdrom_dma_ack_enable = 1; // a000b93c
handle_chain_x_x_1(cdrom_dma_ack_enable, 3); // IRQ3 DMA
}
-void hleExc0_0_2() // A(91h) - CdromDmaIrqFunc1
+static void hleExc0_0_2() // A(91h) - CdromDmaIrqFunc1
{
u32 ret = 0;
//PSXBIOS_LOG("%s\n", __func__);
mips_return_c(ret, 20);
}
-void hleExc0_1_1() // A(92h) - CdromIoIrqFunc2
+static void hleExc0_1_1() // A(92h) - CdromIoIrqFunc2
{
u32 cdrom_irq_ack_enable = 1; // a000b938
handle_chain_x_x_1(cdrom_irq_ack_enable, 2); // IRQ2 cdrom
}
-void hleExc0_1_2() // A(90h) - CdromIoIrqFunc1
+static void hleExc0_1_2() // A(90h) - CdromIoIrqFunc1
{
u32 ret = 0;
if (psxHu32(0x1074) & psxHu32(0x1070) & 4) { // IRQ2 cdrom
mips_return_c(ret, 20);
}
-void hleExc0_2_2_syscall() // not in any A/B/C table
+static void hleExc0_2_2_syscall() // not in any A/B/C table
{
u32 tcbPtr = loadRam32(A_TT_PCB);
TCB *tcb = loadRam32ptr(tcbPtr);
psxBios_ReturnFromException();
}
-void hleExc1_0_1(void)
+static void hleExc1_0_1(void)
{
u32 vbl_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x0c); // 860c
handle_chain_x_x_1(vbl_irq_ack_enable, 0); // IRQ0 vblank
mips_return_c(ret, 22);
}
-void hleExc1_0_2(void)
+static void hleExc1_0_2(void)
{
handle_chain_1_x_2(3, 0); // IRQ0 vblank
}
-void hleExc1_1_1(void)
+static void hleExc1_1_1(void)
{
u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x08); // 8608
handle_chain_x_x_1(rcnt_irq_ack_enable, 6); // IRQ6 rcnt2
}
-void hleExc1_1_2(void)
+static void hleExc1_1_2(void)
{
handle_chain_1_x_2(2, 6); // IRQ6 rcnt2
}
-void hleExc1_2_1(void)
+static void hleExc1_2_1(void)
{
u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x04); // 8604
handle_chain_x_x_1(rcnt_irq_ack_enable, 5); // IRQ5 rcnt1
}
-void hleExc1_2_2(void)
+static void hleExc1_2_2(void)
{
handle_chain_1_x_2(1, 5); // IRQ5 rcnt1
}
-void hleExc1_3_1(void)
+static void hleExc1_3_1(void)
{
u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x00); // 8600
handle_chain_x_x_1(rcnt_irq_ack_enable, 4); // IRQ4 rcnt0
}
-void hleExc1_3_2(void)
+static void hleExc1_3_2(void)
{
handle_chain_1_x_2(0, 4); // IRQ4 rcnt0
}
-void hleExc3_0_2_defint(void)
+static void hleExc3_0_2_defint(void)
{
static const struct {
u8 ev, irqbit;
mips_return_c(0, 11 + 7*11 + 7*11 + 12);
}
-void hleExcPadCard1(void)
+static void hleExcPadCard1(void)
{
if (loadRam32(A_PAD_IRQR_ENA)) {
u8 *pad_buf1 = loadRam8ptr(A_PAD_INBUF + 0);
mips_return_c(0, 18);
}
-void hleExcPadCard2(void)
+static void hleExcPadCard2(void)
{
u32 ret = psxHu32(0x1074) & psxHu32(0x1070) & 1;
mips_return_c(ret, 15);
sp = fp = loadRam32(A_EXC_SP);
gp = A_EXC_GP;
use_cycles(46);
+ assert(!psxRegs.cpuInRecursion);
// do the chains (always 4)
for (c = lim = 0; c < 4; c++) {
psxBios_ReturnFromException();
}
+/* HLE */
+static void hleDummy() {
+ log_unhandled("hleDummy called @%08x ra=%08x\n", psxRegs.pc - 4, ra);
+ psxRegs.pc = ra;
+ psxRegs.cycle += 1000;
+
+ psxBranchTest();
+}
+
+static void hleA0() {
+ u32 call = t1 & 0xff;
+ u32 entry = loadRam32(A_A0_TABLE + call * 4);
+
+ use_cycles(4+7);
+ if (call < 192 && entry != A_A0_TRAPS + call * 4) {
+ PSXBIOS_LOG("custom A%02x %s(0x%x, ) addr=%08x ra=%08x\n",
+ call, biosA0n[call], a0, entry, ra);
+ softCall(entry);
+ pc0 = ra;
+ PSXBIOS_LOG(" -> %08x\n", v0);
+ }
+ else if (biosA0[call])
+ biosA0[call]();
+
+ //printf("A(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+static void hleB0() {
+ u32 call = t1 & 0xff;
+ u32 entry = loadRam32(A_B0_TABLE + call * 4);
+ int is_custom = 0;
+
+ use_cycles(4+7);
+ if (call == 0x5b)
+ is_custom = entry != A_B0_5B_TRAP;
+ else
+ is_custom = entry != A_B0_TRAPS + call * 4;
+ if (is_custom) {
+ PSXBIOS_LOG("custom B%02x %s(0x%x, ) addr=%08x ra=%08x\n",
+ call, biosB0n[call], a0, entry, ra);
+ softCall(entry);
+ pc0 = ra;
+ PSXBIOS_LOG(" -> %08x\n", v0);
+ }
+ else if (biosB0[call])
+ biosB0[call]();
+
+ //printf("B(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+static void hleC0() {
+ u32 call = t1 & 0xff;
+ u32 entry = loadRam32(A_C0_TABLE + call * 4);
+
+ use_cycles(4+7);
+ if (call < 128 && entry != A_C0_TRAPS + call * 4) {
+ PSXBIOS_LOG("custom C%02x %s(0x%x, ) addr=%08x ra=%08x\n",
+ call, biosC0n[call], a0, entry, ra);
+ softCall(entry);
+ pc0 = ra;
+ PSXBIOS_LOG(" -> %08x\n", v0);
+ }
+ else if (biosC0[call])
+ biosC0[call]();
+
+ //printf("C(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+static void hleA0t() {
+ u32 call = (pc0 - A_A0_TRAPS) / 4 - 1;
+ if (call >= 256u || !biosA0[call]) {
+ log_unhandled("unexpected A trap @%08x ra=%08x\n", pc0 - 4, ra);
+ mips_return_void_c(1000);
+ }
+ else
+ biosA0[call]();
+
+ //printf("A(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+static void hleB0t() {
+ u32 call = (pc0 - A_B0_TRAPS) / 4 - 1;
+ if (pc0 - 4 == A_B0_5B_TRAP)
+ call = 0x5b;
+ if (call >= 256u || !biosB0[call]) {
+ log_unhandled("unexpected B trap @%08x ra=%08x\n", pc0 - 4, ra);
+ mips_return_void_c(1000);
+ }
+ else
+ biosB0[call]();
+
+ //printf("B(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+static void hleC0t() {
+ u32 call = (pc0 - A_C0_TRAPS) / 4 - 1;
+ if (call >= 128u || !biosC0[call]) {
+ log_unhandled("unexpected C trap @%08x ra=%08x\n", pc0 - 4, ra);
+ mips_return_void_c(1000);
+ }
+ else
+ biosC0[call]();
+
+ //printf("C(%02x) -> %x\n", call, v0);
+ psxBranchTest();
+}
+
+// currently not used
+static void hleBootstrap() {
+ CheckCdrom();
+ LoadCdrom();
+}
+
+static void hleExecRet() {
+ const EXEC *header = (EXEC *)PSXM(s0);
+
+ PSXBIOS_LOG("ExecRet %x: %x\n", s0, header->ret);
+
+ ra = SWAP32(header->ret);
+ sp = SWAP32(header->_sp);
+ fp = SWAP32(header->_fp);
+ gp = SWAP32(header->_gp);
+ s0 = SWAP32(header->base);
+
+ v0 = 1;
+ psxRegs.pc = ra;
+}
+
+void (* const psxHLEt[hleop_count_])() = {
+ hleDummy, hleA0, hleB0, hleC0,
+ hleBootstrap, hleExecRet, psxBiosException, hleDummy,
+ hleExc0_0_1, hleExc0_0_2,
+ hleExc0_1_1, hleExc0_1_2, hleExc0_2_2_syscall,
+ hleExc1_0_1, hleExc1_0_2,
+ hleExc1_1_1, hleExc1_1_2,
+ hleExc1_2_1, hleExc1_2_2,
+ hleExc1_3_1, hleExc1_3_2,
+ hleExc3_0_2_defint,
+ hleExcPadCard1, hleExcPadCard2,
+ hleA0t, hleB0t, hleC0t,
+};
+
+void psxBiosCheckExe(u32 t_addr, u32 t_size, int loading_state)
+{
+ // lw $v0, 0x10($sp)
+ // nop
+ // addiu $v0, -1
+ // sw $v0, 0x10($sp)
+ // lw $v0, 0x10($sp)
+ // nop
+ // bne $v0, $v1, not_timeout
+ // nop
+ // lui $a0, ...
+ static const u8 pattern[] = {
+ 0x10, 0x00, 0xA2, 0x8F, 0x00, 0x00, 0x00, 0x00,
+ 0xFF, 0xFF, 0x42, 0x24, 0x10, 0x00, 0xA2, 0xAF,
+ 0x10, 0x00, 0xA2, 0x8F, 0x00, 0x00, 0x00, 0x00,
+ 0x0C, 0x00, 0x43, 0x14, 0x00, 0x00, 0x00, 0x00,
+ };
+ u32 start = t_addr & 0x1ffffc;
+ u32 end = (start + t_size) & 0x1ffffc;
+ u32 buf[sizeof(pattern) / sizeof(u32)];
+ const u32 *r32 = (u32 *)(psxM + start);
+ u32 i, j;
+
+ if (end <= start)
+ return;
+ if (!Config.HLE)
+ return;
+
+ memcpy(buf, pattern, sizeof(buf));
+ for (i = 0; i < t_size / 4; i += j + 1) {
+ for (j = 0; j < sizeof(buf) / sizeof(buf[0]); j++)
+ if (r32[i + j] != buf[j])
+ break;
+ if (j != sizeof(buf) / sizeof(buf[0]))
+ continue;
+
+ if ((SWAP32(r32[i + j]) >> 16) != 0x3c04) // lui
+ continue;
+ if (!loading_state)
+ SysPrintf("HLE vsync @%08x\n", start + i * 4);
+ psxRegs.biosBranchCheck = (t_addr & 0xa01ffffc) + i * 4;
+ }
+}
+
+void psxBiosCheckBranch(void)
+{
+#if 1
+ // vsync HLE hack
+ static u32 cycles_prev, v0_prev;
+ u32 cycles_passed, waste_cycles;
+ u32 loops, v0_expect = v0_prev - 1;
+ if (v0 != 1)
+ return;
+ execI(&psxRegs);
+ cycles_passed = psxRegs.cycle - cycles_prev;
+ cycles_prev = psxRegs.cycle;
+ v0_prev = v0;
+ if (cycles_passed < 10 || cycles_passed > 50 || v0 != v0_expect)
+ return;
+
+ waste_cycles = schedule_timeslice() - psxRegs.cycle;
+ loops = waste_cycles / cycles_passed;
+ if (loops > v0)
+ loops = v0;
+ v0 -= loops;
+ psxRegs.cycle += loops * cycles_passed;
+ //printf("c %4u %d\n", loops, cycles_passed);
+#endif
+}
+
#define bfreeze(ptr, size) { \
if (Mode == 1) memcpy(&psxR[base], ptr, size); \
if (Mode == 0) memcpy(ptr, &psxR[base], size); \
notaz.gp2x.de / pcsx_rearmed.git / blobdiff