From c98ad0e7dbc48c928aaea0f78214c7ed6556417d Mon Sep 17 00:00:00 2001 From: "John Wilbert M. Villamor" Date: Mon, 6 Jan 2020 09:39:20 +0800 Subject: Some minor updates, added CD-ROM library documentation --- libpsn00b/psxcd/cdmix.s | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 libpsn00b/psxcd/cdmix.s (limited to 'libpsn00b/psxcd/cdmix.s') diff --git a/libpsn00b/psxcd/cdmix.s b/libpsn00b/psxcd/cdmix.s new file mode 100644 index 0000000..745fb65 --- /dev/null +++ b/libpsn00b/psxcd/cdmix.s @@ -0,0 +1,34 @@ +.set noreorder + +.include "hwregs_a.h" + +.section .text + + +.global CdMix +.type CdMix, @function +CdMix: + + lui $a3, IOBASE + + lbu $t0, 0($a0) + lbu $t1, 1($a0) + lbu $t2, 2($a0) + lbu $t3, 3($a0) + + li $v0, 2 + sb $v0, CD_REG0($a3) + sb $t0, CD_REG2($a3) + sb $t1, CD_REG3($a3) + + li $v0, 3 + sb $v0, CD_REG0($a3) + sb $t2, CD_REG1($a3) + sb $t3, CD_REG2($a3) + + li $v0, 0x20 + sb $v0, CD_REG3($a3) + + jr $ra + li $v0, 1 + \ No newline at end of file -- cgit v1.2.3