diff options
Diffstat (limited to 'libkern/memcpy-386.s')
| -rw-r--r-- | libkern/memcpy-386.s | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/libkern/memcpy-386.s b/libkern/memcpy-386.s deleted file mode 100644 index e85bb232..00000000 --- a/libkern/memcpy-386.s +++ /dev/null @@ -1,58 +0,0 @@ - TEXT memmove(SB), $0 - TEXT memcpy(SB), $0 - - MOVL p1+0(FP), DI - MOVL p2+4(FP), SI - MOVL n+8(FP), BX - CMPL BX, $0 - JGE ok - MOVL $0, SI -ok: - CLD -/* - * check and set for backwards - */ - CMPL SI, DI - JLS back -/* - * copy whole longs - */ - MOVL BX, CX - SHRL $2, CX - REP; MOVSL -/* - * copy the rest, by bytes - */ - ANDL $3, BX - MOVL BX, CX - REP; MOVSB - - MOVL p+0(FP),AX - RET -/* - * whole thing backwards has - * adjusted addresses - */ -back: - ADDL BX, DI - ADDL BX, SI - SUBL $4, DI - SUBL $4, SI - STD -/* - * copy whole longs - */ - MOVL BX, CX - SHRL $2, CX - ANDL $3, BX - REP; MOVSL -/* - * copy the rest, by bytes - */ - ADDL $3, DI - ADDL $3, SI - MOVL BX, CX - REP; MOVSB - - MOVL p+0(FP),AX - RET |