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-rw-r--r--libpcsxcore/cdrom.c123
-rw-r--r--libpcsxcore/cdrom.h2
2 files changed, 62 insertions, 63 deletions
diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c
index 327ddb1..60f03e7 100644
--- a/libpcsxcore/cdrom.c
+++ b/libpcsxcore/cdrom.c
@@ -120,6 +120,13 @@ unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
// so (PSXCLK / 75) = cdr read time (linuzappz)
#define cdReadTime (PSXCLK / 75)
+// for cdr.Seeked
+enum seeked_state {
+ SEEK_PENDING = 0,
+ SEEK_DONE = 1,
+ SEEK_DOING_CMD = 2,
+};
+
static struct CdrStat stat;
static unsigned int msf2sec(u8 *msf) {
@@ -134,7 +141,7 @@ static void sec2msf(unsigned int s, u8 *msf) {
msf[2] = s;
}
-
+// cdrInterrupt
#define CDR_INT(eCycle) { \
psxRegs.interrupt |= (1 << PSXINT_CDR); \
psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
@@ -142,6 +149,7 @@ static void sec2msf(unsigned int s, u8 *msf) {
new_dyna_set_event(PSXINT_CDR, eCycle); \
}
+// cdrReadInterrupt
#define CDREAD_INT(eCycle) { \
psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
@@ -149,6 +157,7 @@ static void sec2msf(unsigned int s, u8 *msf) {
new_dyna_set_event(PSXINT_CDREAD, eCycle); \
}
+// cdrLidSeekInterrupt
#define CDRLID_INT(eCycle) { \
psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
@@ -156,7 +165,8 @@ static void sec2msf(unsigned int s, u8 *msf) {
new_dyna_set_event(PSXINT_CDRLID, eCycle); \
}
-#define CDRPLAY_INT(eCycle) { \
+// cdrPlayInterrupt
+#define CDRMISC_INT(eCycle) { \
psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
@@ -252,7 +262,6 @@ void cdrLidSeekInterrupt()
}
}
-
static void Check_Shell( int Irq )
{
// check case open/close
@@ -411,12 +420,13 @@ static void ReadTrack( u8 *time ) {
}
-void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
+static void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
+ //if (cdr.Irq != 0 && cdr.Irq != 0xff)
+ // printf("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
+
cdr.Irq = irq;
cdr.eCycle = ecycle;
- // Doom: Force rescheduling
- // - Fixes boot
CDR_INT(ecycle);
}
@@ -636,15 +646,40 @@ static void cdrPlayInterrupt_Autopause()
}
}
+// also handles seek
void cdrPlayInterrupt()
{
- if( !cdr.Play ) return;
+ if (cdr.Seeked == SEEK_DOING_CMD) {
+ SetResultSize(1);
+ cdr.StatP |= STATUS_ROTATING;
+ cdr.StatP &= ~STATUS_SEEK;
+ cdr.Result[0] = cdr.StatP;
+ if (cdr.Irq == 0 || cdr.Irq == 0xff) {
+ cdr.Stat = Complete;
+ if (cdr.Stat != NoIntr)
+ psxHu32ref(0x1070) |= SWAP32(0x4);
+ }
+
+ cdr.Seeked = SEEK_PENDING;
+ CDRMISC_INT(cdReadTime * 20); // ???
+ return;
+ }
+ else if (cdr.Seeked == SEEK_PENDING) {
+ cdr.Seeked = SEEK_DONE;
+ if (!cdr.Play && !cdr.Reading) {
+ memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
+ Find_CurTrack();
+ ReadTrack(cdr.SetSector);
+ }
+ }
+
+ if (!cdr.Play) return;
#ifdef CDR_LOG
CDR_LOG( "CDDA - %d:%d:%d\n",
cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
#endif
- CDRPLAY_INT( cdReadTime );
+ CDRMISC_INT( cdReadTime );
if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
cdrPlayInterrupt_Autopause();
@@ -703,9 +738,10 @@ void cdrInterrupt() {
case CdlPlay:
fake_subq_change = 0;
- if( cdr.Seeked == FALSE ) {
+ if (cdr.Seeked == SEEK_PENDING) {
+ // XXX: wrong, should seek instead..
memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
- cdr.Seeked = TRUE;
+ cdr.Seeked = SEEK_DONE;
}
/*
@@ -814,7 +850,7 @@ void cdrInterrupt() {
// BIOS player - set flag again
cdr.Play = TRUE;
- CDRPLAY_INT( cdReadTime );
+ CDRMISC_INT( cdReadTime );
break;
case CdlForward:
@@ -1047,6 +1083,7 @@ void cdrInterrupt() {
break;
case CdlSeekL:
+ case CdlSeekP:
SetResultSize(1);
cdr.StatP |= STATUS_ROTATING;
cdr.Result[0] = cdr.StatP;
@@ -1066,45 +1103,8 @@ void cdrInterrupt() {
Rockman X5 = 0.5-4x
- fix capcom logo
*/
- AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
- break;
-
- case CdlSeekL + 0x20:
- SetResultSize(1);
- cdr.StatP |= STATUS_ROTATING;
- cdr.StatP &= ~STATUS_SEEK;
- cdr.Result[0] = cdr.StatP;
- cdr.Seeked = TRUE;
- cdr.Stat = Complete;
-
-
- // Mega Man Legends 2: must update read cursor for getlocp
- ReadTrack( cdr.SetSector );
- break;
-
- case CdlSeekP:
- SetResultSize(1);
- cdr.StatP |= STATUS_ROTATING;
- cdr.Result[0] = cdr.StatP;
- cdr.StatP |= STATUS_SEEK;
- cdr.Stat = Acknowledge;
- AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
- break;
-
- case CdlSeekP + 0x20:
- SetResultSize(1);
- cdr.StatP |= STATUS_ROTATING;
- cdr.StatP &= ~STATUS_SEEK;
- cdr.Result[0] = cdr.StatP;
- cdr.Stat = Complete;
- cdr.Seeked = TRUE;
-
- // GameShark Music Player
- memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
-
- // Tomb Raider 2: must update read cursor for getlocp
- Find_CurTrack();
- ReadTrack( cdr.SetSectorPlay );
+ CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
+ cdr.Seeked = SEEK_DOING_CMD;
break;
case CdlTest:
@@ -1233,17 +1233,14 @@ void cdrInterrupt() {
if (buf != NULL)
memcpy(cdr.Transfer, buf, 8);
}
-
-
+
/*
Duke Nukem: Land of the Babes - seek then delay read for one frame
- fixes cutscenes
C-12 - Final Resistance - doesn't like seek
*/
- if (!cdr.Seeked) {
- cdr.Seeked = TRUE;
-
+ if (cdr.Seeked != SEEK_DONE) {
cdr.StatP |= STATUS_SEEK;
cdr.StatP &= ~STATUS_READ;
@@ -1283,7 +1280,10 @@ void cdrInterrupt() {
}
#ifdef CDR_LOG
- CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
+ printf("cdrInterrupt() Log: CDR Interrupt IRQ %x: ", Irq);
+ for (i = 0; i < cdr.ResultC; i++)
+ printf("%02x ", cdr.Result[i]);
+ printf("\n");
#endif
}
@@ -1307,6 +1307,7 @@ void cdrReadInterrupt() {
cdr.StatP |= STATUS_READ|STATUS_ROTATING;
cdr.StatP &= ~STATUS_SEEK;
cdr.Result[0] = cdr.StatP;
+ cdr.Seeked = SEEK_DONE;
ReadTrack( cdr.SetSector );
@@ -1537,17 +1538,14 @@ void cdrWrite1(unsigned char rt) {
StopReading();
for (i = 0; i < 3; i++)
set_loc[i] = btoi(cdr.Param[i]);
+
i = abs(msf2sec(cdr.SetSector) - msf2sec(set_loc));
if (i > 16)
- cdr.Seeked = FALSE;
+ cdr.Seeked = SEEK_PENDING;
+
memcpy(cdr.SetSector, set_loc, 3);
cdr.SetSector[3] = 0;
- /*
- if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
- *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
- }*/
-
cdr.Ctrl |= 0x80;
cdr.Stat = NoIntr;
AddIrqQueue(cdr.Cmd, 0x800);
@@ -1663,6 +1661,7 @@ void cdrWrite1(unsigned char rt) {
case CdlReset:
case CdlInit:
+ cdr.Seeked = SEEK_DONE;
StopCdda();
StopReading();
cdr.Ctrl |= 0x80;
diff --git a/libpcsxcore/cdrom.h b/libpcsxcore/cdrom.h
index fde7f21..ab22ccd 100644
--- a/libpcsxcore/cdrom.h
+++ b/libpcsxcore/cdrom.h
@@ -87,7 +87,7 @@ typedef struct {
unsigned char Irq;
u32 eCycle;
- boolean Seeked;
+ u8 Seeked;
u8 LidCheck;
u8 FastForward;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 06:59:31 +0000