OLD | NEW |
(Empty) | |
| 1 .global memset |
| 2 .type memset,@function |
| 3 memset: |
| 4 mov 12(%esp),%ecx |
| 5 cmp $62,%ecx |
| 6 ja 2f |
| 7 |
| 8 mov 8(%esp),%dl |
| 9 mov 4(%esp),%eax |
| 10 test %ecx,%ecx |
| 11 jz 1f |
| 12 |
| 13 mov %dl,%dh |
| 14 |
| 15 mov %dl,(%eax) |
| 16 mov %dl,-1(%eax,%ecx) |
| 17 cmp $2,%ecx |
| 18 jbe 1f |
| 19 |
| 20 mov %dx,1(%eax) |
| 21 mov %dx,(-1-2)(%eax,%ecx) |
| 22 cmp $6,%ecx |
| 23 jbe 1f |
| 24 |
| 25 shl $16,%edx |
| 26 mov 8(%esp),%dl |
| 27 mov 8(%esp),%dh |
| 28 |
| 29 mov %edx,(1+2)(%eax) |
| 30 mov %edx,(-1-2-4)(%eax,%ecx) |
| 31 cmp $14,%ecx |
| 32 jbe 1f |
| 33 |
| 34 mov %edx,(1+2+4)(%eax) |
| 35 mov %edx,(1+2+4+4)(%eax) |
| 36 mov %edx,(-1-2-4-8)(%eax,%ecx) |
| 37 mov %edx,(-1-2-4-4)(%eax,%ecx) |
| 38 cmp $30,%ecx |
| 39 jbe 1f |
| 40 |
| 41 mov %edx,(1+2+4+8)(%eax) |
| 42 mov %edx,(1+2+4+8+4)(%eax) |
| 43 mov %edx,(1+2+4+8+8)(%eax) |
| 44 mov %edx,(1+2+4+8+12)(%eax) |
| 45 mov %edx,(-1-2-4-8-16)(%eax,%ecx) |
| 46 mov %edx,(-1-2-4-8-12)(%eax,%ecx) |
| 47 mov %edx,(-1-2-4-8-8)(%eax,%ecx) |
| 48 mov %edx,(-1-2-4-8-4)(%eax,%ecx) |
| 49 |
| 50 1: ret |
| 51 |
| 52 2: movzbl 8(%esp),%eax |
| 53 mov %edi,12(%esp) |
| 54 imul $0x1010101,%eax |
| 55 mov 4(%esp),%edi |
| 56 test $15,%edi |
| 57 mov %eax,-4(%edi,%ecx) |
| 58 jnz 2f |
| 59 |
| 60 1: shr $2, %ecx |
| 61 rep |
| 62 stosl |
| 63 mov 4(%esp),%eax |
| 64 mov 12(%esp),%edi |
| 65 ret |
| 66 |
| 67 2: xor %edx,%edx |
| 68 sub %edi,%edx |
| 69 and $15,%edx |
| 70 mov %eax,(%edi) |
| 71 mov %eax,4(%edi) |
| 72 mov %eax,8(%edi) |
| 73 mov %eax,12(%edi) |
| 74 sub %edx,%ecx |
| 75 add %edx,%edi |
| 76 jmp 1b |
OLD | NEW |