Subversion Repositories HelenOS

Rev

Rev 3424 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3424 Rev 3425
Line 96... Line 96...
96
 *
96
 *
97
 * @param MEMCPY_DST	Destination address.
97
 * @param MEMCPY_DST	Destination address.
98
 * @param MEMCPY_SRC	Source address.
98
 * @param MEMCPY_SRC	Source address.
99
 * @param MEMCPY_SIZE	Number of bytes to copy.
99
 * @param MEMCPY_SIZE	Number of bytes to copy.
100
 *
100
 *
101
 * @retrun MEMCPY_SRC on success, 0 on failure.
101
 * @retrun MEMCPY_DST on success, 0 on failure.
102
 */
102
 */
103
memcpy:
103
memcpy:
104
memcpy_from_uspace:
104
memcpy_from_uspace:
105
memcpy_to_uspace:
105
memcpy_to_uspace:
106
	movq MEMCPY_SRC, %rax
106
	movq MEMCPY_DST, %rax
107
 
107
 
108
	movq MEMCPY_SIZE, %rcx
108
	movq MEMCPY_SIZE, %rcx
109
	shrq $3, %rcx			/* size / 8 */
109
	shrq $3, %rcx			/* size / 8 */
110
	
110
	
111
	rep movsq			/* copy as much as possible word by word */
111
	rep movsq			/* copy as much as possible word by word */