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Decompile strcat

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This commit is contained in:
Ryan Dwyer
2021-01-30 13:04:41 +10:00
parent 8e5f6d5414
commit b39302bda6
2 changed files with 22 additions and 28 deletions
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src/include/lib/lib_13130.h
+1 -1
View File
@@ -5,7 +5,7 @@
char *strcpy(char *dest, char *src);
char *strncpy(char *dest, char *src, u32 len);
u32 strcat(char *dst, char *src);
char *strcat(char *dst, char *src);
s32 strcmp(char *s1, char *s2);
s32 strncmp(char *s1, char *s2, s32 len);
char toupper(char c);
src/lib/lib_13130.c
+21 -27
View File
@@ -97,33 +97,27 @@ glabel strncpy
/* 13220: 00801025 */ or $v0,$a0,$zero
);
GLOBAL_ASM(
glabel strcat
/* 13224: 908e0000 */ lbu $t6,0x0($a0)
/* 13228: 00801025 */ or $v0,$a0,$zero
/* 1322c: 51c00006 */ beqzl $t6,.L00013248
/* 13230: 90a30000 */ lbu $v1,0x0($a1)
/* 13234: 904f0001 */ lbu $t7,0x1($v0)
.L00013238:
/* 13238: 24420001 */ addiu $v0,$v0,0x1
/* 1323c: 55e0fffe */ bnezl $t7,.L00013238
/* 13240: 904f0001 */ lbu $t7,0x1($v0)
/* 13244: 90a30000 */ lbu $v1,0x0($a1)
.L00013248:
/* 13248: 24420001 */ addiu $v0,$v0,0x1
/* 1324c: 24a50001 */ addiu $a1,$a1,0x1
/* 13250: 10600006 */ beqz $v1,.L0001326c
/* 13254: a043ffff */ sb $v1,-0x1($v0)
.L00013258:
/* 13258: 90a30000 */ lbu $v1,0x0($a1)
/* 1325c: 24420001 */ addiu $v0,$v0,0x1
/* 13260: 24a50001 */ addiu $a1,$a1,0x1
/* 13264: 1460fffc */ bnez $v1,.L00013258
/* 13268: a043ffff */ sb $v1,-0x1($v0)
.L0001326c:
/* 1326c: 03e00008 */ jr $ra
/* 13270: 00801025 */ or $v0,$a0,$zero
);
char *strcat(char *dst, char *src)
{
char *ptr = dst;
char c;
while (*ptr != '\0') {
ptr++;
}
*ptr = c = *src;
ptr++;
src++;
while (c != '\0') {
*ptr = c = *src;
ptr++;
src++;
}
return dst;
}
s32 strcmp(char *s1, char *s2)
{