- are interrupts edge or level triggered?
- an interrupt is in service, another interrupt occur, what will happen after
the RTI command? Will the requested interrupt be serviced or ignored?
- the current implementation of timer1/2 isn't correct, I need information
when a timer interrupt occur (seem to be 0x0 -> 0xf in timer1), and the
behavior of the timer control registers (i.e. service request bit). I have
some problems with the interrupt handling, when I slow down the emulation
- I need the machine cycles for commands not found in the HP 71 (not
described in SASM.DOC, marked with **)
There is a french description of interrupt handling, but I can read only
english or german documents.
Any information is welcome.
Greetings Christoph Gießelink, cgi...@swol.de
-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/ Now offering spam-free web-based newsreading