home *** CD-ROM | disk | FTP | other *** search
- NOTES ON UNDERLI.COM
-
- The main documentation for UNDERLI2.COM is in the headers of
- UNDERLI2.ASM and ISRESDNT.ASM. You can get an abbreviated version by
- typeing "underli2 ?". This file covers a few supplementary topics.
-
- standard_palette_values is a table of 17 bytes, the first 16 of
- which contain the palette values for palettes 0 through 15. The last
- byte contains what IBM calls the overscan register, which contains
- the color for the very small border which the EGA allows. If you want
- different defaults, change the values contained in it and recompile.
-
- UNDERLI2 writes its opening message and the three messages which
- tell you that it did what it was supposed to do to StdOut, so you can
- surpress them by redirecting output to NUL. For example, you could
- write "underli2 on -p1=1 -p9=57 >nul". On the other hand, it writes
- error messages to StdErr, so you would need to work a little bit to
- surpress them. I hope that the error messages say enough so that if
- you get one from a batch file with output redirected to nul, you can
- still understand what is going on.
-
- If all you want to do is set the palette registers, the KEEP
- option is a little faster, because it does not reset the underline
- register. I haven't checked, but the -s option only makes one BIOS
- call, so it may be a little bit faster than setting several palette
- registers individually. You should probably use it for the first
- settings. Afterwards, it really depends on whether you want to reset
- the earlier settings or keep them.
-
- Lew Paper
- 12/15/87