diff options
Diffstat (limited to 'contrib/syslinux-4.02/dos/memcpy.S')
| -rw-r--r-- | contrib/syslinux-4.02/dos/memcpy.S | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/dos/memcpy.S b/contrib/syslinux-4.02/dos/memcpy.S new file mode 100644 index 0000000..76eef73 --- /dev/null +++ b/contrib/syslinux-4.02/dos/memcpy.S @@ -0,0 +1,23 @@ +# +# memcpy.S +# +# Simple 16-bit memcpy() implementation +# + + .text + .code16gcc + .globl memcpy + .type memcpy, @function +memcpy: + cld + pushw %di + pushw %si + movw %ax,%di + movw %dx,%si + # The third argument is already in cx + rep ; movsb + popw %si + popw %di + ret + + .size memcpy,.-memcpy |