ralf+@cs.cmu.edu (Ralf Brown) (06/10/91)
I'm looking for information on some old BIOS calls which are presumably
Tandy-specific, but would also be interested in any other calls people
might know about (such as Deskmate).
The following are calls which have been in the MSDOS interrupt list since
at least July 1987, so they probably pertain to either the model 2000 or
early model 1000's.
INT 0A (IRQ 2) hard disk
INT 0D (IRQ 5) 60 Hz RAM refresh
INT 10/AH=70h get video RAM address
INT 10/AH=71h get INCRAM address (what is INCRAM, anyway?)
INT 10/AH=72h scroll right
INT 10/AH=73h scroll left
INT F8 10ms interval timer
INT FA USART ready
INT FB USART Rx ready (keyboard)
If anybody can give me descriptions for insertion in the interrupt list
(ones NOT derived from the interrupt list, since Dan Lanciani has decided
to claim copyright on the 1987 version, which means that the above calls
are the only individual entries which are not in the public domain), so
much the better. Contributors will be given appropriate credit in the
interrupt list and in the book I am currently making from the list.
advTHANKSance.
Ralf
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