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| author | H. Peter Anvin <hpa@zytor.com> | 2009-02-10 22:37:16 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-02-10 22:37:16 -0800 |
| commit | 9485c9742fcc2c499fed98057c3ef44f67fda91b (patch) | |
| tree | a0a4261bdf878888e000950583b98fa808947dfb /core/ldlinux.asm | |
| parent | 8814df6683dca8e6a54da61d8afd88372d99047d (diff) | |
| download | syslinux-9485c9742fcc2c499fed98057c3ef44f67fda91b.tar.gz | |
ldlinux: readdir: trivial optimization
Trivially optimize the readdir code
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'core/ldlinux.asm')
| -rw-r--r-- | core/ldlinux.asm | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/core/ldlinux.asm b/core/ldlinux.asm index a06e727c..21a3a352 100644 --- a/core/ldlinux.asm +++ b/core/ldlinux.asm @@ -1446,12 +1446,11 @@ readdir: .vfat_cp_ln: ; Copy VFAT line dec al ; Store the next line we need mov dx,ax ; Use DX to store the progress - mov bx,13 - mov ah,0 - mul bl ; Offset for DI + mov cx,13 ; 13 characters per VFAT DIRENT + cbw ; AH <- 0 + mul cl ; Offset for DI add di,ax ; Increment DI inc si ; Align to the real characters - mov cx,13 ; 13 characters per VFAT DIRENT .vfat_cp_chr: gs lodsw ; Unicode here!! mov bp,ds |