*** Bryan Schwartz wrote in a message to All:
BS> I have an old copy of Checkit for DOS and it displays what
BS> is in memory but not the code itself. For example, it says
BS> eg.
BS>       0040 - 0050  BIOS
BS> Does anyone know what register these values pertain to? I
BS> assumed it was CS but when i tried to use Debug to see the
0040:0000-004F:000F (usually abbreviated to 40:0-50:0), aka
0040:0000-0040:0100, aka 0000:0400-0000:0500, etc., is the BIOS scratch 
variable area, where the BIOS records the information about your systems 
current configuration, such as the current cursor position, the current value 
of the timer tick, the current positions of the floppy and hard drive heads, 
etc.  There's no code there, unless the BIOS dynamically creates temporary 
routines.
The video BIOS code itself is usually at C000:0000-C800:0000, and the ROM 
BIOS is usually at F000:0000.
--Scott.
--- timEd 1.01
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