On 4/2/2006 at 6:52 PM Jim Battle wrote:
Chuck, I have no answer for you, but it reminds me of a
point I've
always wondered about. The CP/M service call to 0005 takes three bytes
-- why didn't they move it three bytes forward so that the one byte "RST
1" call could have been used instead?
That answer would lie in the mind of the late Gary Kildall, I'm afraid.
AFAIK, only RST 7 is used in all of CP/M--and that's as a breakpoint patch
in DDT.
Cheers,
Chuck