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| author | John Wilbert M. Villamor <lameguy64@gmail.com> | 2020-01-06 09:39:20 +0800 |
|---|---|---|
| committer | John Wilbert M. Villamor <lameguy64@gmail.com> | 2020-01-06 09:39:20 +0800 |
| commit | c98ad0e7dbc48c928aaea0f78214c7ed6556417d (patch) | |
| tree | bcbafb8547eceb867f342bfe504377e13a5533a9 /libpsn00b/libpsxcd/cdgetsector.s | |
| parent | 87ded2ccb9db9bf3b2ed40a0b02b663179d5868f (diff) | |
| download | psn00bsdk-c98ad0e7dbc48c928aaea0f78214c7ed6556417d.tar.gz | |
Some minor updates, added CD-ROM library documentation
Diffstat (limited to 'libpsn00b/libpsxcd/cdgetsector.s')
| -rw-r--r-- | libpsn00b/libpsxcd/cdgetsector.s | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/libpsn00b/libpsxcd/cdgetsector.s b/libpsn00b/libpsxcd/cdgetsector.s deleted file mode 100644 index 70039bf..0000000 --- a/libpsn00b/libpsxcd/cdgetsector.s +++ /dev/null @@ -1,53 +0,0 @@ -.set noreorder - -.include "hwregs_a.h" - -.section .text - -.global CdGetSector -.type CdGetSector, @function -CdGetSector: - - lui $a2, IOBASE - -.Lwait_fifo: - lbu $v0, CD_REG0($a2) - nop - andi $v0, 0x40 - beqz $v0, .Lwait_fifo - nop - - lui $v0, 0x1 - srl $a1, 2 - or $v0, $a1 - sw $a0, D3_MADR($a2) # Set DMA base address and transfer length - sw $v0, D3_BCR($a2) - - lui $v0, 0x1100 # Start DMA transfer - sw $v0, D3_CHCR($a2) - nop - nop -.Ldma_wait: - lw $v0, D3_CHCR($a2) - nop - srl $v0, 24 - andi $v0, 0x1 - bnez $v0, .Ldma_wait - nop - -# Not stable -# sb $0 , CD_REG0($a2) -#.Lflush_fifo: # Read out any remaining bytes in the buffer -# lbu $v1, CD_REG0($a2) -# li $v0, 0x40 -# and $v1, $v0 -# beqz $v1, .Lend_flush -# nop -# lbu $v0, CD_REG2($a2) -# b .Lflush_fifo -# nop -#.Lend_flush: - - jr $ra - li $v0, 1 - |