Search found 542 matches

by stefano
Fri Sep 22, 2023 12:33 pm
Forum: Software
Topic: CHR$128 Font Bank Manager
Replies: 7
Views: 6886

Re: CHR$128 Font Bank Manager

The games get way cooler with a font replacement ! I really like those retrofits improving an original program leaving the original code untouched (the CHROMA interface really brought it to the extreme), Some year ago I introduced an "SVG vector graphics" capture option on the FUSE emulator: you fir...
by stefano
Fri Sep 22, 2023 10:50 am
Forum: Software
Topic: DSTAR on all the Lambda models
Replies: 1
Views: 4326

DSTAR on all the Lambda models

I reworked the 'dstar.c' example we have in the zx81 section of the z88dk examples. It is now capable of producing valid versions for all the Lambda ROMS... at least I hope so ! Could anybody try this stuff on the real hardware ? If so, could you check it on different TV sets? I have a last resort t...
by stefano
Tue Sep 19, 2023 5:40 pm
Forum: Lambda 8300/ Power 3000 Lounge
Topic: Different ROMs for Lambda 8300
Replies: 42
Views: 51686

Re: Different ROMs for Lambda 8300

I chose to go for three different ROM types only, the CAC-3 and NF300 are so close. At the moment I'm ignoring the zx81 retrofits The first thing to do is to fix the interrupt/video handler. I noticed that the early monochrome ROM uses a different register (and a different order for the push/pop seq...
by stefano
Tue Sep 19, 2023 9:50 am
Forum: Lambda 8300/ Power 3000 Lounge
Topic: Different ROMs for Lambda 8300
Replies: 42
Views: 51686

Re: Different ROMs for Lambda 8300

So to recap we have those different ROMS:

Lambda 8300 v1 (LAM10061.BIN)

Lambda 8300 v2 (I believe EO simply names it "lambda.rom")

cac-3.rom (8EEC1EC6-cac-3.rom)

NF300.ROM (F8BBA9D8-NF300.ROM)

ZX81 compatible ROM for Lambda 8300


Am I missing sometthing ?
by stefano
Mon Sep 18, 2023 5:20 pm
Forum: Lambda 8300/ Power 3000 Lounge
Topic: Different ROMs for Lambda 8300
Replies: 42
Views: 51686

Re: Different ROMs for Lambda 8300

I'm finally jumping in :) For what I understood what you consider as "lambda 1" is more than a single ROM version, right? It includes at least both the CAC-3 and the NF300. It's probably worth to extend z88dk, as long as we know we are covering most of the clones. EDIT: the link provided by Martin f...
by stefano
Fri Sep 15, 2023 11:09 pm
Forum: Development
Topic: Comparing a (1 byte) variable with a number for equal
Replies: 11
Views: 7243

Re: Comparing a (1 byte) variable with a number for equal

remove OR A !

listen to dr beep!
by stefano
Fri Sep 01, 2023 2:04 pm
Forum: Software
Topic: ZX81 to ZX Spectrum conversion possible
Replies: 59
Views: 200573

Re: ZX81 to ZX Spectrum conversion possible

It could be the program was developed for a different zx spectrum issue.
Issue 1 and 2 have a different polarity and sensibility in the EAR input than issue 3 (and 4)
by stefano
Mon Aug 28, 2023 9:38 pm
Forum: Software
Topic: Campus LISP on a ZX80
Replies: 2
Views: 4468

Re: Campus LISP on a ZX80

I noticed the z88dk libraries still missed key '>' and '<'. I fixed the bug and refreshed the campus lisp binaries above. I also kept the graphics version only, the memory allocation is better tuned and keeping 2 versions is now useless. (the LISP stack is set to 50 here, while the original default ...
by stefano
Mon Aug 28, 2023 1:57 pm
Forum: Software
Topic: Campus LISP
Replies: 4
Views: 5249

Re: Campus LISP

The mentioned limits
lambda_factorial.png
lambda_lisp.png
by stefano
Mon Aug 28, 2023 9:38 am
Forum: Software
Topic: Campus LISP
Replies: 4
Views: 5249

Re: Campus LISP

This are the embedded functions: ======================================= SpecLISP turtle graphics - (cls) Clears screen and reposition turtle - (penu) Pen up: turtle will move without drawing - (pend) Pen down: turtle will draw a line when moving - (left n) Turn left, n degrees - (right n) Turn righ...