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Decompile strcpy

This commit is contained in:
Ryan Dwyer 2021-01-30 13:56:25 +10:00
parent 133832c5a3
commit b779b1a648
3 changed files with 26 additions and 53 deletions
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2
src/include/lib/lib_0bfb0.h
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@ -4,6 +4,6 @@
#include "types.h"
void faultCreateThread(void);
void func0000bfd0(char *arg0, char *arg1, s32 arg2);
void func0000bfd0(char *msg, char *file, s32 line);
#endif

2
src/include/lib/lib_13130.h
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@ -3,7 +3,7 @@
#include <ultra64.h>
#include "types.h"
char *strcpy(char *dest, char *src);
char *strcpy(char *dst, char *src);
char *strncpy(char *dst, char *s2, s32 len);
char *strcat(char *dst, char *src);
s32 strcmp(char *s1, char *s2);

75
src/lib/lib_13130.c
View File

@ -12,58 +12,31 @@
#include "lib/lib_13130.h"
#include "types.h"
const char var70054010[] = "s1";
const char var70054014[] = "str.c";
const char var7005401c[] = "s2";
const char var70054020[] = "str.c";
const char var70054028[] = "";
const char var7005402c[] = "";
char *strcpy(char *dst, char *src)
{
char *ptr = dst;
char c;
GLOBAL_ASM(
glabel strcpy
/* 13130: 27bdffe8 */ addiu $sp,$sp,-24
/* 13134: afbf0014 */ sw $ra,0x14($sp)
/* 13138: afa40018 */ sw $a0,0x18($sp)
/* 1313c: 14800009 */ bnez $a0,.L00013164
/* 13140: 00a03825 */ or $a3,$a1,$zero
/* 13144: 3c047005 */ lui $a0,%hi(var70054010)
/* 13148: 3c057005 */ lui $a1,%hi(var70054014)
/* 1314c: 24a54014 */ addiu $a1,$a1,%lo(var70054014)
/* 13150: 24844010 */ addiu $a0,$a0,%lo(var70054010)
/* 13154: 2406002c */ addiu $a2,$zero,0x2c
/* 13158: 0c002ff4 */ jal func0000bfd0
/* 1315c: afa7001c */ sw $a3,0x1c($sp)
/* 13160: 8fa7001c */ lw $a3,0x1c($sp)
.L00013164:
/* 13164: 14e00008 */ bnez $a3,.L00013188
/* 13168: 3c047005 */ lui $a0,%hi(var7005401c)
/* 1316c: 3c057005 */ lui $a1,%hi(var70054020)
/* 13170: 24a54020 */ addiu $a1,$a1,%lo(var70054020)
/* 13174: 2484401c */ addiu $a0,$a0,%lo(var7005401c)
/* 13178: 2406002d */ addiu $a2,$zero,0x2d
/* 1317c: 0c002ff4 */ jal func0000bfd0
/* 13180: afa7001c */ sw $a3,0x1c($sp)
/* 13184: 8fa7001c */ lw $a3,0x1c($sp)
.L00013188:
/* 13188: 90e20000 */ lbu $v0,0x0($a3)
/* 1318c: 8faf0018 */ lw $t7,0x18($sp)
/* 13190: 24e70001 */ addiu $a3,$a3,0x1
/* 13194: a1e20000 */ sb $v0,0x0($t7)
/* 13198: 10400006 */ beqz $v0,.L000131b4
/* 1319c: 25e30001 */ addiu $v1,$t7,0x1
.L000131a0:
/* 131a0: 90e20000 */ lbu $v0,0x0($a3)
/* 131a4: 24630001 */ addiu $v1,$v1,0x1
/* 131a8: 24e70001 */ addiu $a3,$a3,0x1
/* 131ac: 1440fffc */ bnez $v0,.L000131a0
/* 131b0: a062ffff */ sb $v0,-0x1($v1)
.L000131b4:
/* 131b4: 8fbf0014 */ lw $ra,0x14($sp)
/* 131b8: 8fa20018 */ lw $v0,0x18($sp)
/* 131bc: 27bd0018 */ addiu $sp,$sp,0x18
/* 131c0: 03e00008 */ jr $ra
/* 131c4: 00000000 */ nop
);
if (dst == NULL) {
func0000bfd0("s1", "str.c", 44);
}
if (src == NULL) {
func0000bfd0("s2", "str.c", 45);
}
*ptr = c = *src;
ptr++;
src++;
while (c != '\0') {
*ptr = c = *src;
ptr++;
src++;
}
return dst;
}
char *strncpy(char *dst, char *src, s32 len)
{