diff options
Diffstat (limited to 'S/byte_zero.S')
| -rw-r--r-- | S/byte_zero.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/S/byte_zero.S b/S/byte_zero.S new file mode 100644 index 0000000..01c166b --- /dev/null +++ b/S/byte_zero.S @@ -0,0 +1,16 @@ +.globl byte_zero +.type byte_zero, @function +byte_zero: + xorb %al, %al + +.globl byte_zero_end +byte_zero_end: + pushl %edi + movl 8(%esp), %edi + movl 12(%esp), %ecx + + cld + rep stosb + + popl %edi + ret |