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Decompile __osPfsGetInitData

This commit is contained in:
Ryan Dwyer 2021-03-17 12:13:40 +10:00
parent f869136229
commit cde3ceea27
2 changed files with 26 additions and 49 deletions
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1
src/include/bss.h
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@ -67,6 +67,7 @@ extern u32 __osViIntrCount;
extern OSMesgQueue __osPiAccessQueue;
extern u32 __osContPifRam;
extern u8 __osContLastCmd;
extern u8 __osMaxControllers;
extern u32 __osEepromTimer;
extern OSMesgQueue __osEepromTimerQ;
extern OSMesg __osEepromTimerMsg;

74
src/lib/ultra/io/pfsisplug.c
View File

@ -1,4 +1,5 @@
#include <libultra_internal.h>
#include "bss.h"
#include "data.h"
u32 __osPfsPifRam;
@ -181,52 +182,27 @@ glabel __osPfsRequestData
/* 59ac: 27bd0010 */ addiu $sp,$sp,0x10
);
GLOBAL_ASM(
glabel __osPfsGetInitData
/* 59b0: 3c07800a */ lui $a3,%hi(__osContLastCmd+0x1)
/* 59b4: 24e7c821 */ addiu $a3,$a3,%lo(__osContLastCmd+0x1)
/* 59b8: 90ee0000 */ lbu $t6,0x0($a3)
/* 59bc: 3c038009 */ lui $v1,%hi(__osPfsPifRam)
/* 59c0: 27bdffe8 */ addiu $sp,$sp,-24
/* 59c4: 00001025 */ or $v0,$zero,$zero
/* 59c8: 24630a20 */ addiu $v1,$v1,%lo(__osPfsPifRam)
/* 59cc: 19c00020 */ blez $t6,.L00005a50
/* 59d0: 00003025 */ or $a2,$zero,$zero
/* 59d4: 27a8000c */ addiu $t0,$sp,0xc
.L000059d8:
/* 59d8: 88610000 */ lwl $at,0x0($v1)
/* 59dc: 98610003 */ lwr $at,0x3($v1)
/* 59e0: ad010000 */ sw $at,0x0($t0)
/* 59e4: 88780004 */ lwl $t8,0x4($v1)
/* 59e8: 98780007 */ lwr $t8,0x7($v1)
/* 59ec: ad180004 */ sw $t8,0x4($t0)
/* 59f0: 93b9000e */ lbu $t9,0xe($sp)
/* 59f4: 332900c0 */ andi $t1,$t9,0xc0
/* 59f8: 00095103 */ sra $t2,$t1,0x4
/* 59fc: 314b00ff */ andi $t3,$t2,0xff
/* 5a00: 1560000d */ bnez $t3,.L00005a38
/* 5a04: a0aa0003 */ sb $t2,0x3($a1)
/* 5a08: 93ac0011 */ lbu $t4,0x11($sp)
/* 5a0c: 93ae0010 */ lbu $t6,0x10($sp)
/* 5a10: 24190001 */ addiu $t9,$zero,0x1
/* 5a14: 000c6a00 */ sll $t5,$t4,0x8
/* 5a18: 01ae7825 */ or $t7,$t5,$t6
/* 5a1c: a4af0000 */ sh $t7,0x0($a1)
/* 5a20: 93b80012 */ lbu $t8,0x12($sp)
/* 5a24: 00d94804 */ sllv $t1,$t9,$a2
/* 5a28: 00491025 */ or $v0,$v0,$t1
/* 5a2c: 304a00ff */ andi $t2,$v0,0xff
/* 5a30: 01401025 */ or $v0,$t2,$zero
/* 5a34: a0b80002 */ sb $t8,0x2($a1)
.L00005a38:
/* 5a38: 90eb0000 */ lbu $t3,0x0($a3)
/* 5a3c: 24c60001 */ addiu $a2,$a2,0x1
/* 5a40: 24630008 */ addiu $v1,$v1,0x8
/* 5a44: 00cb082a */ slt $at,$a2,$t3
/* 5a48: 1420ffe3 */ bnez $at,.L000059d8
/* 5a4c: 24a50004 */ addiu $a1,$a1,0x4
.L00005a50:
/* 5a50: a0820000 */ sb $v0,0x0($a0)
/* 5a54: 03e00008 */ jr $ra
/* 5a58: 27bd0018 */ addiu $sp,$sp,0x18
);
void __osPfsGetInitData(u8 *pattern, OSContStatus *data)
{
u8 *ptr;
__OSContRequestFormat requestformat;
int i;
u8 bits;
bits = 0;
ptr = (u8 *)&__osPfsPifRam;
for (i = 0; i < __osMaxControllers; i++, ptr += sizeof(__OSContRequestFormat)) {
requestformat = *(__OSContRequestFormat *)ptr;
data->errno = CHNL_ERR(requestformat);
if (data->errno == 0) {
data->type = (requestformat.typel << 8) | (requestformat.typeh);
data->status = requestformat.status;
bits |= 1 << i;
}
data++;
}
*pattern = bits;
}