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Decompile __osSiDeviceBusy

This commit is contained in:
Ryan Dwyer 2021-01-30 01:15:07 +10:00
parent fd0cf2a084
commit f1cddc16fe
2 changed files with 11 additions and 17 deletions
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1
Makefile
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@ -70,6 +70,7 @@ $(B_DIR)/lib/ultra/libc/llcvt.o: MIPSISET := -mips3 -o32
$(B_DIR)/lib/ultra/io/dpctr.o: OPT_LVL := -O1
$(B_DIR)/lib/ultra/io/pigetcmdq.o: OPT_LVL := -O1
$(B_DIR)/lib/ultra/io/si.o: OPT_LVL := -O1
$(B_DIR)/lib/ultra/io/sp.o: OPT_LVL := -O1
$(B_DIR)/lib/ultra/io/spsetpc.o: OPT_LVL := -O1
$(B_DIR)/lib/ultra/io/sptaskyielded.o: OPT_LVL := -O1

27
src/lib/ultra/io/si.c
View File

@ -1,19 +1,12 @@
#include <libultra_internal.h>
GLOBAL_ASM(
glabel __osSiDeviceBusy
/* 51c60: 3c0ea480 */ lui $t6,0xa480
/* 51c64: 8dc40018 */ lw $a0,0x18($t6)
/* 51c68: 27bdfff8 */ addiu $sp,$sp,-8
/* 51c6c: 308f0003 */ andi $t7,$a0,0x3
/* 51c70: 11e00003 */ beqz $t7,.L00051c80
/* 51c74: 00000000 */ nop
/* 51c78: 10000002 */ b .L00051c84
/* 51c7c: 24020001 */ addiu $v0,$zero,0x1
.L00051c80:
/* 51c80: 00001025 */ or $v0,$zero,$zero
.L00051c84:
/* 51c84: 03e00008 */ jr $ra
/* 51c88: 27bd0008 */ addiu $sp,$sp,0x8
/* 51c8c: 00000000 */ nop
);
int __osSiDeviceBusy()
{
register u32 stat = IO_READ(SI_STATUS_REG);
if (stat & (SI_STATUS_DMA_BUSY | SI_STATUS_RD_BUSY)) {
return 1;
}
return 0;
}