libc: change usize to 64-bit for amd64 and arm64, make memory(2) functions use usize

[plan9front.git] / sys / src / libc / amd64 / memcpy.s

diff --git a/sys/src/libc/amd64/memcpy.s b/sys/src/libc/amd64/memcpy.s
index 878e802236765cb69a62a019724eabf5cb80a572..3858a7aec6c851a49aac386abb1430278311f705 100644 (file)
--- a/sys/src/libc/amd64/memcpy.s
+++ b/sys/src/libc/amd64/memcpy.s
@@ -2,8 +2,8 @@ TEXT memcpy(SB), $0
        MOVQ    RARG, DI
        MOVQ    DI, AX                  /* return value */
        MOVQ    p2+8(FP), SI
-       MOVL    n+16(FP), BX
-       CMPL    BX, $0
+       MOVQ    n+16(FP), BX
+       CMPQ    BX, $0
        JGT     _ok
        JEQ     _return                 /* nothing to do if n == 0 */
        MOVL    $0, SI                  /* fault if n < 0 */
@@ -40,7 +40,7 @@ _forward:
  */
        JEQ     _return                 /* flags set by above ANDL */
 c3f:
-       MOVL    BX, CX
+       MOVQ    BX, CX
        REP;    MOVSB
 
        RET
@@ -62,7 +62,7 @@ _back:
        ORQ     SI, DX
        ANDL    $3, DX
        JNE     c3b
-       MOVL    BX, CX
+       MOVQ    BX, CX
        SHRQ    $2, CX
        ANDL    $3, BX
        REP;    MOVSL
@@ -74,7 +74,7 @@ _back:
 c3b:
        ADDQ    $3, DI
        ADDQ    $3, SI
-       MOVL    BX, CX
+       MOVQ    BX, CX
        REP;    MOVSB
 
 _return: