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Fix GetlocP drive position after explicit CD seeks

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This commit is contained in:
Matthew Stanley
2026-10-07 15:43:08 -07:00
parent c371091002
commit 9f673fa2b2
1 changed files with 7 additions and 7 deletions
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runtime/src/cdrom.c
+7 -7
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@@ -2323,14 +2323,14 @@ static void exec_command(uint8_t cmd) {
lba = (int)cdda_lba;
track = cdda_track;
track_lba = (int)iso_cdda_track_start_lba(iso_handle, track);
} else if (reading) {
/* GetlocP reports the drive/sub-Q position. During a read the
* sector stream has already advanced past the data-ready sector. */
lba = msf_to_lba(read_min, read_sec, read_sect);
} else if (last_sector_lba >= 0) {
lba = last_sector_lba;
} else {
lba = msf_to_lba(seek_min, seek_sec, seek_sect);
/* GetlocP reports drive/sub-Q position, not the data buffer's
* header (GetlocL). SeekL/SeekP update this cursor even though
* they leave reading stopped; Pause retains it. SetLoc alone
* only changes the target. Returning last_sector_lba here kept
* THPS2 polling the previous asset's position after its initial
* music seek, so it never issued ReadS to start the track. */
lba = msf_to_lba(read_min, read_sec, read_sect);
}
if (subq_replacements_active) update_last_valid_subq((uint32_t)lba);
if (subq_replacements_active && last_valid_subq_available) {