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fix for MT#05222

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This commit is contained in:
Fabio Priuli 2013-06-30 08:42:13 +00:00
parent 0eaa6130f9
commit e2b5232c12
1 changed files with 6 additions and 0 deletions
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6
src/mame/machine/megacdcd.c
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@ -357,6 +357,8 @@ void lc89510_temp_device::CDD_Play(running_machine &machine)
CLEAR_CDD_RESULT CLEAR_CDD_RESULT
UINT32 msf = getmsf_from_regs(); UINT32 msf = getmsf_from_regs();
SCD_CURLBA = msf_to_lba(msf)-150; SCD_CURLBA = msf_to_lba(msf)-150;
if(segacd.cd == NULL) // no cd is there, bail out
return;
UINT32 end_msf = segacd.toc->tracks[ cdrom_get_track(segacd.cd, SCD_CURLBA) + 1 ].logframeofs; UINT32 end_msf = segacd.toc->tracks[ cdrom_get_track(segacd.cd, SCD_CURLBA) + 1 ].logframeofs;
SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1; SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1;
LC8951UpdateHeader(); LC8951UpdateHeader();
@ -380,6 +382,8 @@ void lc89510_temp_device::CDD_Seek(void)
CLEAR_CDD_RESULT CLEAR_CDD_RESULT
UINT32 msf = getmsf_from_regs(); UINT32 msf = getmsf_from_regs();
SCD_CURLBA = msf_to_lba(msf)-150; SCD_CURLBA = msf_to_lba(msf)-150;
if(segacd.cd == NULL) // no cd is there, bail out
return;
SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1; SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1;
LC8951UpdateHeader(); LC8951UpdateHeader();
STOP_CDC_READ STOP_CDC_READ
@ -411,6 +415,8 @@ void lc89510_temp_device::CDD_Resume(running_machine &machine)
{ {
CLEAR_CDD_RESULT CLEAR_CDD_RESULT
STOP_CDC_READ STOP_CDC_READ
if(segacd.cd == NULL) // no cd is there, bail out
return;
SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1; SCD_CURTRK = cdrom_get_track(segacd.cd, SCD_CURLBA)+1;
SCD_STATUS = CDD_PLAYINGCDDA; SCD_STATUS = CDD_PLAYINGCDDA;
CDD_STATUS = 0x0102; CDD_STATUS = 0x0102;