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Ignore whitespace Rev 389 → Rev 390

/SPARTAN/trunk/arch/ia32/include/memstr.h
32,8 → 32,6
extern void memsetw(__address dst, size_t cnt, __u16 x);
extern void memsetb(__address dst, size_t cnt, __u8 x);
extern int memcmp(__address src, __address dst, int cnt);
/** Copy memory
*
* Copy a given number of bytes (3rd argument)
71,5 → 69,33
}
/** Compare memory
*
* Compare a given number of bytes (3rd argument)
* at memory locations defined by 1st and 2nd argument
* for equality. If memory is equal, returns 0.
*
* @param pointer 1
* @param pointer 2
* @param number of bytes
* @return 0 on match or non-zero if different
*/
static inline int memcmp(const void * mem1, const void * mem2, size_t cnt)
{
__u32 d0, d1, d2;
int ret;
__asm__ (
"repe cmpsb\n\t"
"je 1f\n\t"
"movl %3, %0\n\t"
"addl $1, %0\n\t"
"1:\n"
: "=a" (ret), "=%S" (d0), "=&D" (d1), "=&c" (d2)
: "0" (0), "1" (mem1), "2" (mem2), "3" (cnt)
);
return ret;
}
#endif

/SPARTAN/trunk/arch/ia32/src/asm.S
39,9 → 39,7
.global interrupt_handlers
.global memsetb
.global memsetw
.global memcmp
## Turn paging on
#
# Enable paging and write-back caching in CR0.
202,32 → 200,6
ret
## Compare memory regions for equality
#
# Compare a given number of bytes (3rd argument)
# at memory locations defined by 1st and 2nd argument
# for equality. If the bytes are equal, EAX contains 0.
#
SRC=12
DST=16
CNT=20
memcmp:
push %esi
push %edi
movl CNT(%esp),%ecx
movl DST(%esp),%edi
movl SRC(%esp),%esi
repe cmpsb %es:(%edi),%ds:(%esi)
movl %ecx,%eax # %ecx contains the return value (zero on success)
pop %edi
pop %esi
ret
# THIS IS USERSPACE CODE
.global utext
utext: