Sinclair ZX80 / ZX81 / Z88 Forums

I was counting on you :lol: Well I've almost finished, I think I spotted the equivalent entries also for interfacing C to BASIC (and vice-versa), I'm testing it on the different ROMs but most of the code looks valid also on the later ROM version with more differences from the ZX81. printf ("Basic le...

Now extended to CAC-3 / NF300 and V1 ROM.

As a bouns, I think that the horse animation is somewhat satisfactory if you have a slow computer.
Type any key repeatedly to hit the horse and make it run faster.

you can still load the programs on EO, but you csn't rely on flash loading To be able to quickly load the .p program EightyOne taps the ROM and reacts when the emulated program counter register reaches the tape routine. The location is hardcoded in the emulator and works with the known ROM types onl...

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...

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...

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...

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 ?

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...

remove OR A !

listen to dr beep!