Search found 150 matches

by marste
Tue Jan 19, 2021 2:15 am
Forum: Emulators
Topic: ZEsarUX beta 5.1
Replies: 18
Views: 7802

Re: ZEsarUX beta 5.1

And I have created a simple ZX81 test program to do the outs: https://github.com/chernandezba/zesarux/blob/master/src/extras/media/zx81/tests/zesarux-zxi-ports.p Ciao Cesar, long time have passed but we are doing retrocomputing for a reason, aren't we? :) I was trying to use the feature (and took m...
by marste
Fri Jan 08, 2021 4:07 pm
Forum: Sinclair Misc
Topic: Sinclair Scientific calculator
Replies: 2
Views: 302

Re: Sinclair Scientific calculator

Red this post by chance but very very interesting link!
Nice story, nice engineering work and nice emulator (with on/off switch as a cherry)! :)
Thank you for sharing!
by marste
Tue Jan 05, 2021 5:20 pm
Forum: Development
Topic: New prototype ZX-deluxe+
Replies: 19
Views: 1352

Re: New prototype ZX-deluxe+

This is for sure one of the best looking clone around!
by marste
Thu Dec 10, 2020 12:28 pm
Forum: Development
Topic: New prototype ZX-deluxe+
Replies: 19
Views: 1352

Re: New prototype ZX-deluxe+

@zxhenk, a side question: how did you manage to get the custom labels on the MX keycaps?
I'm interested for custom keyboards I've made (e.g. Gherkin and BM43A)
by marste
Wed Dec 09, 2020 11:43 pm
Forum: Sinclair Misc
Topic: Micro and ... super micro! :)
Replies: 2
Views: 606

Micro and ... super micro! :)

microandsupermicro.jpg
by marste
Fri Jul 31, 2020 9:43 pm
Forum: Development
Topic: Counting TStates
Replies: 3
Views: 5259

Re: Counting TStates

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 ...
by marste
Fri Jul 31, 2020 7:32 pm
Forum: Development
Topic: Pretty fast Mandelbrot set generator...
Replies: 8
Views: 7790

Re: Pretty fast Mandelbrot set generator...

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...
by marste
Wed Jul 29, 2020 11:49 am
Forum: Development
Topic: "Extreme" 1k programs for ZX80 and ZX81: starter kit
Replies: 15
Views: 15320

Re: "Extreme" 1k programs for ZX80 and ZX81: starter kit

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)
by marste
Tue Jul 28, 2020 6:46 pm
Forum: Development
Topic: Counting TStates
Replies: 3
Views: 5259

Counting TStates

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...
by marste
Tue Jul 28, 2020 6:37 pm
Forum: Sinclair Misc
Topic: Z80 Explorer
Replies: 3
Views: 5692

Re: Z80 Explorer

Very impressive indeed!