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| author | H. Peter Anvin <hpa@zytor.com> | 2007-09-25 16:38:31 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-09-25 16:38:31 -0700 |
| commit | 223f5298620a3b3be9fbd206e2a3fbb388487da0 (patch) | |
| tree | 286635488927e801c646d80e21d6a194261ed75b /memdump/memcpy.S | |
| parent | 57556d8f612128679464667ce124ddc611795db2 (diff) | |
| parent | a81fb89a445ae0dca286c861d8d51f705533df0d (diff) | |
| download | syslinux-3.60-pre2.tar.gz | |
Merge commit 'syslinux-3.52' into gpxe-supportsyslinux-3.60-pre2
Diffstat (limited to 'memdump/memcpy.S')
| -rw-r--r-- | memdump/memcpy.S | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/memdump/memcpy.S b/memdump/memcpy.S new file mode 100644 index 00000000..76eef73c --- /dev/null +++ b/memdump/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 |