void psxMemWrite16(u32 mem, u16 value) {
char *p;
u32 t;
psxRegs.cycle += 1;
t = mem >> 16;
if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
if ((mem & 0xffff) < 0x400)
psxHu16ref(mem) = SWAPu16(value);
else
psxHwWrite16(mem, value);
} else {
p = (char *)(psxMemWLUT[t]);
if (p != NULL) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, BW2);
*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
#ifdef PSXREC
psxCpu->Clear((mem & (~3)), 1);
#endif
} else {
#ifdef PSXMEM_LOG
PSXMEM_LOG("err sh %8.8lx\n", mem);
#endif
}
}
}
static int PSXGetFileType(FILE *f) {
unsigned long current;
u8 mybuf[sizeof(EXE_HEADER)]; // EXE_HEADER currently biggest
EXE_HEADER *exe_hdr;
FILHDR *coff_hdr;
size_t amt;
memset(mybuf, 0, sizeof(mybuf));
current = ftell(f);
fseek(f, 0L, SEEK_SET);
amt = fread(mybuf, sizeof(mybuf), 1, f);
fseek(f, current, SEEK_SET);
exe_hdr = (EXE_HEADER *)mybuf;
if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0)
return PSX_EXE;
if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E')
return CPE_EXE;
coff_hdr = (FILHDR *)mybuf;
if (SWAPu16(coff_hdr->f_magic) == 0x0162)
return COFF_EXE;
return INVALID_EXE;
}
u16 psxMemRead16(u32 mem) {
char *p;
u32 t;
psxRegs.cycle += 1;
t = mem >> 16;
if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
if ((mem & 0xffff) < 0x400)
return psxHu16(mem);
else
return psxHwRead16(mem);
} else {
p = (char *)(psxMemRLUT[t]);
if (p != NULL) {
if (Config.Debug)
DebugCheckBP((mem & 0xffffff) | 0x80000000, BR2);
return SWAPu16(*(u16 *)(p + (mem & 0xffff)));
} else {
#ifdef PSXMEM_LOG
PSXMEM_LOG("err lh %8.8lx\n", mem);
#endif
return 0;
}
}
}
void psxMemWrite16(u32 mem, u16 value) {
u32 t;
t = mem >> 16;
if (t == 0x1f80) {
if (mem < 0x1f801000)
psxHu16ref(mem) = SWAPu16(value);
else
psxHwWrite16(mem, value);
} else {
char *p = (char *)(psxMemWLUT[t]);
if (p != NULL) {
*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
#ifdef PSXREC
psxCpu->Clear((mem&(~1)), 1);
#endif
} else {
#ifdef PSXMEM_LOG
PSXMEM_LOG("err sh %8.8lx\n", mem);
#endif
}
}
}
u16 psxMemRead16(u32 mem) {
u32 t;
t = mem >> 16;
if (t == 0x1f80) {
if (mem < 0x1f801000)
return psxHu16(mem);
else
return psxHwRead16(mem);
} else {
char *p = (char *)(psxMemRLUT[t]);
if (p != NULL) {
return SWAPu16(*(u16 *)(p + (mem & 0xffff)));
} else {
#ifdef PSXMEM_LOG
PSXMEM_LOG("err lh %8.8lx\n", mem);
#endif
return 0;
}
}
}
static int PSXGetFileType(FILE *f) {
unsigned long current;
u8 mybuf[2048];
EXE_HEADER *exe_hdr;
FILHDR *coff_hdr;
current = ftell(f);
fseek(f, 0L, SEEK_SET);
fread(mybuf, 2048, 1, f);
fseek(f, current, SEEK_SET);
exe_hdr = (EXE_HEADER *)mybuf;
if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0)
return PSX_EXE;
if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E')
return CPE_EXE;
coff_hdr = (FILHDR *)mybuf;
if (SWAPu16(coff_hdr->f_magic) == 0x0162)
return COFF_EXE;
return INVALID_EXE;
}
void psxHwWrite16(u32 add, u16 value) {
switch (add) {
case 0x1f801040:
sioWrite8((unsigned char)value);
sioWrite8((unsigned char)(value>>8));
#ifdef PAD_LOG
PAD_LOG ("sio write16 %x, %x\n", add&0xf, value);
#endif
return;
case 0x1f801044:
sioWriteStat16(value);
#ifdef PAD_LOG
PAD_LOG ("sio write16 %x, %x\n", add&0xf, value);
#endif
return;
case 0x1f801048:
sioWriteMode16(value);
#ifdef PAD_LOG
PAD_LOG ("sio write16 %x, %x\n", add&0xf, value);
#endif
return;
case 0x1f80104a: // control register
sioWriteCtrl16(value);
#ifdef PAD_LOG
PAD_LOG ("sio write16 %x, %x\n", add&0xf, value);
#endif
return;
case 0x1f80104e: // baudrate register
sioWriteBaud16(value);
#ifdef PAD_LOG
PAD_LOG ("sio write16 %x, %x\n", add&0xf, value);
#endif
return;
#ifdef ENABLE_SIO1API
case 0x1f801050:
SIO1_writeData16(value);
return;
case 0x1f801054:
SIO1_writeStat16(value);
return;
case 0x1f80105a:
SIO1_writeCtrl16(value);
return;
case 0x1f80105e:
SIO1_writeBaud16(value);
return;
#endif
case 0x1f801070:
#ifdef PSXHW_LOG
PSXHW_LOG("IREG 16bit write %x\n", value);
#endif
if (Config.Sio) psxHu16ref(0x1070) |= SWAPu16(0x80);
if (Config.SpuIrq) psxHu16ref(0x1070) |= SWAPu16(0x200);
psxHu16ref(0x1070) &= SWAPu16((psxHu16(0x1074) & value));
return;
case 0x1f801074:
#ifdef PSXHW_LOG
PSXHW_LOG("IMASK 16bit write %x\n", value);
#endif
psxHu16ref(0x1074) = SWAPu16(value);
if (psxHu16ref(0x1070) & value)
new_dyna_set_event(PSXINT_NEWDRC_CHECK, 1);
return;
case 0x1f801100:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 0 COUNT 16bit write %x\n", value);
#endif
psxRcntWcount(0, value); return;
case 0x1f801104:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 0 MODE 16bit write %x\n", value);
#endif
psxRcntWmode(0, value); return;
case 0x1f801108:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 0 TARGET 16bit write %x\n", value);
#endif
psxRcntWtarget(0, value); return;
case 0x1f801110:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 1 COUNT 16bit write %x\n", value);
#endif
psxRcntWcount(1, value); return;
case 0x1f801114:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 1 MODE 16bit write %x\n", value);
#endif
psxRcntWmode(1, value); return;
case 0x1f801118:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 1 TARGET 16bit write %x\n", value);
#endif
psxRcntWtarget(1, value); return;
case 0x1f801120:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 2 COUNT 16bit write %x\n", value);
#endif
psxRcntWcount(2, value); return;
case 0x1f801124:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 2 MODE 16bit write %x\n", value);
#endif
psxRcntWmode(2, value); return;
case 0x1f801128:
#ifdef PSXHW_LOG
PSXHW_LOG("COUNTER 2 TARGET 16bit write %x\n", value);
#endif
psxRcntWtarget(2, value); return;
default:
if (add>=0x1f801c00 && add<0x1f801e00) {
SPU_writeRegister(add, value);
return;
}
psxHu16ref(add) = SWAPu16(value);
#ifdef PSXHW_LOG
PSXHW_LOG("*Unknown 16bit write at address %x value %x\n", add, value);
#endif
return;
}
psxHu16ref(add) = SWAPu16(value);
#ifdef PSXHW_LOG
PSXHW_LOG("*Known 16bit write at address %x value %x\n", add, value);
#endif
}