kobayashi90/marioparty4
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

MSL: match alloc/signal/string and most of printf

Browse source
This commit is contained in:
mrshigure 2025-01-29 14:19:43 -08:00
parent 6347294c14
commit b353af7d23
7 changed files with 1346 additions and 858 deletions
Download patch file Download diff file Expand all files Collapse all files

52
src/MSL_C.PPCEABI.bare.H/string.c
View file

@ -1,8 +1,8 @@
#include "string.h"
#include "stddef.h"
static int K1 = 0x80808080;
static int K2 = 0xFEFEFEFF;
#define K1 0x80808080
#define K2 0xFEFEFEFF
size_t strlen(const char* str)
{
@ -20,8 +20,6 @@ char* strcpy(char* dst, const char* src)
{
register unsigned char *destb, *fromb;
register unsigned long w, t, align;
register unsigned int k1;
register unsigned int k2;
fromb = (unsigned char*)src;
destb = (unsigned char*)dst;
@ -44,14 +42,11 @@ char* strcpy(char* dst, const char* src)
++fromb;
}
k1 = K1;
k2 = K2;
w = *((int*)(fromb));
t = w + k2;
t = w + K2;
t &= k1;
t &= K1;
if (t) {
goto bytecopy;
}
@ -61,8 +56,8 @@ char* strcpy(char* dst, const char* src)
*(++((int*)(destb))) = w;
w = *(++((int*)(fromb)));
t = w + k2;
t &= k1;
t = w + K2;
t &= K1;
if (t) {
goto adjust;
}
@ -103,16 +98,21 @@ char* strncpy(char* dst, const char* src, size_t n)
return dst;
}
char* strcat(char* dst, const char* src)
// TODO: same implementation as strncpy?
char* strcat(char* dst, const char* src, size_t n)
{
const unsigned char* p = (unsigned char*)src - 1;
const unsigned char* p = (const unsigned char*)src - 1;
unsigned char* q = (unsigned char*)dst - 1;
while (*++q) { }
q--;
while (*++q = *++p) { }
n++;
while (--n) {
if (!(*++q = *++p)) {
while (--n) {
*++q = 0;
}
break;
}
}
return dst;
}
@ -196,6 +196,22 @@ bytecopy:
} while (1);
}
int strncmp(const char* str1, const char* str2, size_t n)
{
const unsigned char* p1 = (unsigned char*)str1 - 1;
const unsigned char* p2 = (unsigned char*)str2 - 1;
unsigned long c1, c2;
n++;
while (--n)
if ((c1 = *++p1) != (c2 = *++p2))
return (c1 - c2);
else if (!c1)
break;
return 0;
}
char* strchr(const char* str, int c)
{
const unsigned char* p = (unsigned char*)str - 1;