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Vintage Computers Any vintage computer systems, calculators, video games etc., but with an emphasis on 1980s and earlier equipment. |
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20th Sep 2023, 2:41 pm | #1 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
Posts: 1,127
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LCDS software
Is anyone aware of any programs or demos that run under the original NS Kitbug please?
Anything at all? I've tried but cant find anything significant. The reason I ask is that I'd pondered shuffling KB+ so the major calls are at the 'standard kitbug addresses' but if theres no software theres no advantage. There is a precedent, the 'fixed' Kitbug (without the "bit 7 set" bug) didnt preserve the original PUTC address If there is no software out there, ie nothing that relies on the original Kitbug addresses, then the plan is to give KB+ a call-table in low memory so future monitor additions wont affect system calls Because its grabbed my interest, I'll continue to tinker and add to KB+, and it would be nice if routine addresses didnt change on every release. Cheers Phil |
22nd Oct 2023, 5:07 pm | #2 |
Hexode
Join Date: Jan 2021
Location: Ashford, Kent, UK
Posts: 320
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Re: LCDS software
Hi Phil, is there a concise list of the Kitbug+ routines and their addresses/parameters? I know where PUTC and IPRINT are located, but if I want to dump memory contents on a detected runtime error is it just a case of setting P2 with the address and calling DUMP?
I'm quite enjoying this new fangled KitBug thing |
22nd Oct 2023, 6:41 pm | #3 |
Octode
Join Date: Mar 2011
Location: North Yorkshire, UK.
Posts: 1,127
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Re: LCDS software
Its P1 Ian but the problem is when its done 8 lines it jumps to the monitor command loop, so if its called from an external program it wont return to it
Cheers Phil |