diff options
| author | hpa <hpa> | 1998-04-14 05:27:20 +0000 |
|---|---|---|
| committer | hpa <hpa> | 1998-04-14 05:27:20 +0000 |
| commit | 06e8eeeb75a44bd6df54c7e120cfa95a2dd6f8a1 (patch) | |
| tree | b14294afd5dbb58dec40875e57b48aa9f9a87537 /ldlinux.asm | |
| parent | ec539247246461dc67b7f141b0c17be7b7caa226 (diff) | |
| download | syslinux-06e8eeeb75a44bd6df54c7e120cfa95a2dd6f8a1.tar.gz | |
Patch generator for the -s (stupid) option.
Diffstat (limited to 'ldlinux.asm')
| -rw-r--r-- | ldlinux.asm | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/ldlinux.asm b/ldlinux.asm index bc0c78a8..46631b11 100644 --- a/ldlinux.asm +++ b/ldlinux.asm @@ -638,8 +638,9 @@ getonesec: ; On return, BX points to the first byte after the transferred ; block. ; -; When compiling with the STUPID option, this is replaced by a -; routine which loads one sector at a time. +; The "stupid patch area" gets replaced by the code +; mov bp,1 ; nop ... (BD 01 00 90 90...) when installing with +; the -s option. ; getlinsec: mov si,[bsSecPerTrack] @@ -654,20 +655,14 @@ getlinsec: ; gls_nextchunk: push si ; <A> bsSecPerTrack push bp ; <B> Sectors to transfer -%ifdef STUPID - mov bp,1 - nop ; Minimize size of patch - nop - nop - nop - nop -%else + +__BEGIN_STUPID_PATCH_AREA: sub si,cx ; Sectors left on track cmp bp,si jna gls_lastchunk mov bp,si ; No more than a trackful, please! +__END_STUPID_PATCH_AREA: gls_lastchunk: -%endif push ax ; <C> Cylinder # push dx ; <D> Head # push bp ; <E> Number of sectors we're transferring |