48 lines
1.1 KiB
C
Executable File
48 lines
1.1 KiB
C
Executable File
#include "types.h"
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/*******************************************************************************/
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/* Copie un octet une ou plusieurs fois en mémoire */
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void memset(void *dst, u8 val, u32 count, u32 size)
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{
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u8 * temp;
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for (temp = (u8 *) dst; count != 0; count--) {
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temp += size;
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*temp = val;
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}
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}
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/*******************************************************************************/
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/* Copie une portion de mémoire vers une autre */
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void memcpy(void *src, void *dst, u32 count, u32 size)
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{
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char *s, *d;
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u32 i;
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s = (u8 *) src;
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d = (u8 *) dst;
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for (i = 0; i < count; i++) {
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*(d + i * size) = *(s + i);
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}
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}
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/*******************************************************************************/
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/* Compare 2 portions de mémoire */
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u32 memcmp(void *src, void *dst, u32 count, u32 size)
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{
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const u8 *mem1 = (const u8 *)src;
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const u8 *mem2 = (const u8 *)dst;
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for (; count != 0; count--) {
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if (*mem1 != *mem2)
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return *mem1 - *mem2;
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mem1 += size;
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mem2 += size;
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}
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}
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/*******************************************************************************/
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