Sinclair ZX80 / ZX81 / Z88 Forums

Recently I started using sjasmplus with the Visual Studio Code + Z80 Assembly Meter extension and I'm really enjoying it, just select the code with the mouse and you have the count of bytes and T-states displayed in the status bar. Very practical! It is still manual calculation (and when you start ...

I now use 4.12 fixed point math so you can zoom in further. I've seen that you're doing a lot of operations just to manage the 4 bit displacement. Wouldn't it be faster to go 8.16 in case more exponent were needed? (seems to me you would need the same operations to manage the exponent and even havi...

dr beep wrote: ↑

Thu May 30, 2019 8:44 pm

Got my base...

Ciao Johan, might you share the sjasm adapted version of the kit?
(since Visual Code "source debugger" possibility it might be interesting to many)

For the people that develop their own flicker-free routine (e.g. for ZX80, but also custom ones for ZX81) or anyway programs that need very accurate fine grain timing, there is always the need to calculate the cpu cycles of the program pieces, and usually this activity is done by hand (as I did also...

Very impressive indeed!

A piece of ascii art!!
I would never think it could resemble so much the original...
Really compliments!!

@mahjongg very very nice project, compliments!

regarding jumpers, would it be nice to have one switching from the 4k ZX80 ROM to the 8k ZX81 one (and also slow mode)?
(with the 16kbyte ROM both fit at the same time and is a matter of switching just address bit 13)

diskman interested in turbo tape

In order to load programs I was required to preprocess the audio file amplifying it!
I used audacity, but everything might fit

Improved Debugging: -added setting to dump .zsf snapshot when a cpu panic is fired -debug CPU window: can now resize height and have more debug lines -cpu transaction log: faster when opening transaction log file -added key 'n' for "run" on debug cpu. Does the same as closing all menus and returnin...