diff options
Diffstat (limited to 'libpsn00b/psxcd/cdgetsector.s')
| -rw-r--r-- | libpsn00b/psxcd/cdgetsector.s | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/libpsn00b/psxcd/cdgetsector.s b/libpsn00b/psxcd/cdgetsector.s index 70039bf..9af3543 100644 --- a/libpsn00b/psxcd/cdgetsector.s +++ b/libpsn00b/psxcd/cdgetsector.s @@ -10,12 +10,12 @@ CdGetSector: lui $a2, IOBASE -.Lwait_fifo: - lbu $v0, CD_REG0($a2) - nop - andi $v0, 0x40 - beqz $v0, .Lwait_fifo - nop +#.Lwait_fifo: # Probably redundant as the BIOS CD-ROM +# lbu $v0, CD_REG0($a2) # routines do not not wait for this +# nop +# andi $v0, 0x40 +# beqz $v0, .Lwait_fifo +# nop lui $v0, 0x1 srl $a1, 2 @@ -27,11 +27,13 @@ CdGetSector: sw $v0, D3_CHCR($a2) nop nop -.Ldma_wait: + +.Ldma_wait: # Ensure DMA transfer has completed lw $v0, D3_CHCR($a2) nop srl $v0, 24 andi $v0, 0x1 + bnez $v0, .Ldma_wait nop |