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Some other front panel uses – Memory sizing, memory testing – writing known patterns to memory and reading them back (or not) Peripheral/UART testing – reading/writing control and status registers, terminal i/o BIOS configuration – build BIOS in RAM, jump to warm/cold start address Code verification – single stepping through code loops, etc. Verifying machine state, processor status, interrupt condition, flag status, etc. (depending on your front panel) Obviously, much of this could be done with a ROM monitor as well, assuming that (a) you have a ROM monitor and (b) you can load it into memory. Probably lots more, but that’s a pretty good slice – Jack From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com]
On Behalf Of nbreeden My system is old enough it has a switch register on it's Front Panel - I have a few questions. - It's on port $FF - is this the correct port for the SR - for some reason I remember it being on $FE? - I find it useful for debugging (writing bit patterns to the SR) - Does anyone else use one this way? - Are there other uses for the SR? -Neil -- No virus found in this message. |