mdec.cpp: Dare to set MDEC_BIAS to 10 (#186)

[pcsx_rearmed.git] / libpcsxcore / cdrom.c

diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c
index 3e31c0a..16b7ca1 100644 (file)
--- a/libpcsxcore/cdrom.c
+++ b/libpcsxcore/cdrom.c
@@ -496,6 +496,7 @@ void cdrPlayInterrupt()
                if (cdr.SetlocPending) {
                        memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
                        cdr.SetlocPending = 0;
+                       cdr.m_locationChanged = TRUE;
                }
                Find_CurTrack(cdr.SetSectorPlay);
                ReadTrack(cdr.SetSectorPlay);
@@ -527,7 +528,15 @@ void cdrPlayInterrupt()
                }
        }
 
-       CDRMISC_INT(cdReadTime);
+       if (cdr.m_locationChanged)
+       {
+               CDRMISC_INT(cdReadTime * 30);
+               cdr.m_locationChanged = FALSE;
+       }
+       else
+       {
+               CDRMISC_INT(cdReadTime);
+       }
 
        // update for CdlGetlocP/autopause
        generate_subq(cdr.SetSectorPlay);
@@ -539,6 +548,7 @@ void cdrInterrupt() {
        int start_rotating = 0;
        int error = 0;
        int delay;
+       unsigned int seekTime = 0;
 
        // Reschedule IRQ
        if (cdr.Stat) {
@@ -588,6 +598,7 @@ void cdrInterrupt() {
                        if (cdr.SetlocPending) {
                                memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
                                cdr.SetlocPending = 0;
+                               cdr.m_locationChanged = TRUE;
                        }
 
                        // BIOS CD Player
@@ -909,8 +920,11 @@ void cdrInterrupt() {
                case CdlReadN:
                case CdlReadS:
                        if (cdr.SetlocPending) {
+                               seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
+                               if(seekTime > 1000000) seekTime = 1000000;
                                memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
                                cdr.SetlocPending = 0;
+                               cdr.m_locationChanged = TRUE;
                        }
                        Find_CurTrack(cdr.SetSectorPlay);
 
@@ -948,7 +962,7 @@ void cdrInterrupt() {
                                // - fix cutscene speech (startup)
 
                                // ??? - use more accurate seek time later
-                               CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
+                               CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1) + seekTime);
                        } else {
                                cdr.StatP |= STATUS_READ;
                                cdr.StatP &= ~STATUS_SEEK;
@@ -1127,7 +1141,13 @@ void cdrReadInterrupt() {
 
        cdr.Readed = 0;
 
-       CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
+       uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
+       if (cdr.m_locationChanged) {
+               CDREAD_INT(delay * 30);
+               cdr.m_locationChanged = FALSE;
+       } else {
+               CDREAD_INT(delay);
+       }
 
        /*
        Croc 2: $40 - only FORM1 (*)
@@ -1465,6 +1485,8 @@ void cdrReset() {
        cdr.DriveState = DRIVESTATE_STANDBY;
        cdr.StatP = STATUS_ROTATING;
        pTransfer = cdr.Transfer;
+       cdr.SetlocPending = 0;
+       cdr.m_locationChanged = FALSE;
 
        // BIOS player - default values
        cdr.AttenuatorLeftToLeft = 0x80;