cdrom: cleanup irq reschedule and pause hacks

diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c
index eebd8ed..15c05aa 100644 (file)
--- a/libpcsxcore/cdrom.c
+++ b/libpcsxcore/cdrom.c
@@ -78,8 +78,6 @@ static unsigned char *pTransfer;
 #define CdlReset       28
 #define CdlReadToc     30
 
-/* don't set 255, it's reserved */
-
 char *CmdName[0x100]= {
     "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
     "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
@@ -423,7 +421,7 @@ static void ReadTrack( u8 *time ) {
 
 
 static void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
-       if (cdr.Irq != 0 && cdr.Irq != 0xff)
+       if (cdr.Irq != 0)
                CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
 
        cdr.Irq = irq;
@@ -648,7 +646,7 @@ void cdrPlayInterrupt()
                cdr.StatP |= STATUS_ROTATING;
                cdr.StatP &= ~STATUS_SEEK;
                cdr.Result[0] = cdr.StatP;
-               if (cdr.Irq == 0 || cdr.Irq == 0xff) {
+               if (cdr.Irq == 0) {
                        cdr.Stat = Complete;
                        setIrq();
                }
@@ -701,7 +699,7 @@ void cdrInterrupt() {
                return;
        }
 
-       cdr.Irq = 0xff;
+       cdr.Irq = 0;
        cdr.Ctrl &= ~0x80;
 
        switch (Irq) {
@@ -1358,17 +1356,7 @@ void cdrReadInterrupt() {
 
        cdr.Readed = 0;
 
-       // G-Police: Don't autopause ADPCM even if mode set (music)
-       if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
-                       (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
-
-               CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
-
-               AddIrqQueue(CdlPause, 0x2000);
-       }
-       else {
-               CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
-       }
+       CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
 
        /*
        Croc 2: $40 - only FORM1 (*)
@@ -1376,14 +1364,10 @@ void cdrReadInterrupt() {
        Sim Theme Park - no adpcm at all (zero)
        */
 
-       if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
+       if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
                cdr.Stat = DataReady;
-       } else {
-               // Breath of Fire 3 - fix inn sleeping
-               // Rockman X5 - no music restart problem
-               cdr.Stat = NoIntr;
+               setIrq();
        }
-       setIrq();
 
        Check_Shell(0);
 }
@@ -1693,9 +1677,13 @@ void cdrWrite3(unsigned char rt) {
 
        switch (cdr.Ctrl & 3) {
        case 0:
-               goto transfer;
+               break; // transfer
        case 1:
-               break; // irq
+               cdr.Stat &= ~rt;
+
+               if (rt & 0x40)
+                       cdr.ParamC = 0;
+               return;
        case 2:
                cdr.AttenuatorLeft[1] = rt;
                return;
@@ -1707,34 +1695,6 @@ void cdrWrite3(unsigned char rt) {
                return;
        }
 
-       cdr.Stat &= ~rt;
-
-       if (rt & 0x40)
-               cdr.ParamC = 0;
-
-       if (rt == 0x07) {
-               if (cdr.Irq == 0xff) {
-                       cdr.Irq = 0;
-                       return;
-               }
-
-               // XA streaming - incorrect timing because of this reschedule
-               // - Final Fantasy Tactics
-               // - various other games
-
-               if (cdr.Reading && !cdr.ResultReady) {
-                       int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
-                       int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
-                       if (Config.CdrReschedule != 2)
-                       if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
-                               CDR_LOG_I("-- resched %d -> %d\n", left, time);
-                               CDREAD_INT(time);
-                       }
-               }
-       }
-       return;
-
-transfer:
        if ((rt & 0x80) && cdr.Readed == 0) {
                cdr.Readed = 1;
                pTransfer = cdr.Transfer;
@@ -1879,7 +1839,7 @@ void LidInterrupt() {
        cdr.LidCheck = 0x20; // start checker
 
        CDRLID_INT( cdReadTime * 3 );
-       
+
        // generate interrupt if none active - open or close
        if (cdr.Irq == 0 || cdr.Irq == 0xff) {
                cdr.Ctrl |= 0x80;