I just created my own folder in the member library and have uploaded the RAM/ROM map with my additions. I don’t see a way to directly link files for download, so just go to the Club 100 Member Upload Library, choose folder Mike Nugent, and look for the file 'RAM-ROM Maps.txt’.
I hope someone finds it useful. — Nuge — On Apr 5, 2017, at 4:25 PM, Mike Nugent <m100l...@tmne.com> wrote: > Hiya, WIllard, > >> *The* Mike Nugent? <waynesworld>We're not worthy!!!</waynesworld> :-) > > LOL I think it’s the other way around these days. > >> Humm, higher address, sets both bits? Interesting, I'll have to >> experiment further. > > I took another look, and it appears the address Tandy gave you is where it > checks to see whether CTRL-C or CTRL-S is pressed, setting the carry flag if > so. Here’s what this area of ROM looks like in my notes: > > ——— > KEYX > 7270H - Check keyboard queue for pending characters > Exit: > A - Destroyed > Z flag - Set if character pending > C flag - Set if break is present > Note: called via CHSNS > > CTLCHK > 7283H - Check for break (Control C) or wait (Control S) > Exit: > A - Destroyed > C flag - Set if Control C or S > Z flag - Set if no control C or S > Note: called from KEYX (7270) > > BRKCHK > 729FH - Check to see if SHIFT BREAK is being pressed. > Exit: > A - Destroyed > Z flag - Set if shift break is being pressed > C flag - Set if shift break is being pressed > > 72B1H - Scan BREAK, CAPS, NUM, CODE, GRAPH, CONTROL, and SHIFT key column of > keyboard. Reset the bit in the A register that corresponds the key > being pressed > Exit: > A - Each reset bit corresponds to a key being pressed > (BREAK=bit 7, CAPS=bit 5, etc.) > ——— > > I think I’ll have to post this version of the maps somewhere soon. Just have > to deal with some urgent business first. Meantime, hoping the above is > helpful. > > I’m also going to send a copy (about 93Kb) to your sdc.org address if you say > it’s okay. > > — Nuge — > > > > > On Apr 5, 2017, at 3:18 PM, Willard Goosey <goo...@sdc.org> wrote: > >> On Mon, 3 Apr 2017 12:23:05 -0400 >> Mike Nugent <m100l...@tmne.com> wrote: >> >> *The* Mike Nugent? <waynesworld>We're not worthy!!!</waynesworld> :-) >> >>> A file I have, named ‘M100 RAM/ROM maps’ shows this: >>> >>> BRKCHK >>> 729FH - Check to see if SHIFT BREAK is being pressed. >>> Exit: >>> A - Destroyed >>> Z flag - Set if shift break is being pressed >>> C flag - Set if shift break is being pressed >> >> >> Humm, higher address, sets both bits? Interesting, I'll have to >> experiment further. >> >> More complications... :-( >> >> Willard >
