Search found 52 matches

by salvacam
Thu Apr 11, 2024 10:57 pm
Forum: Development
Topic: Gamecoding in machinecode on a ZX81.
Replies: 54
Views: 51442

Re: Gamecoding in machinecode on a ZX81.

I don't know if it has already been mentioned. I haven't read the whole thread yet. gamecode ld a,63 showa ld (screen),a dec a jr nz,showa jr gamecode I get an error when trying to compile this change. Label not found: screen I have to put the screen label here for it to work screen block 20,128 ; B...
by salvacam
Thu Oct 19, 2023 10:57 pm
Forum: GAMES
Topic: 8bit wars project and the ZX81 game
Replies: 12
Views: 10258

Re: 8bit wars project and the ZX81 game

Hi Johan, hope you're good and thanks for continuing with what you do. Just found this but for some reason the game freezes after I walk in the box on level 1. The message to type in the alphabet comes up with clock, but there's no response when in press any, or all the keys. Not sure if there's an...
by salvacam
Fri Aug 18, 2023 11:42 am
Forum: GAMES
Topic: Another translation - Mad Jack
Replies: 7
Views: 5788

Re: Another translation - Mad Jack

You have one word left in French.
In line 950 you should change "PAR" to "BY"
by salvacam
Wed Aug 02, 2023 11:18 pm
Forum: GAMES
Topic: K-Man, Jumping Jack and Ladybug
Replies: 18
Views: 2454

Re: K-Man, Jumping Jack and Ladybug

A few days ago I was testing K-Man on the ZX81
Image
by salvacam
Wed Aug 02, 2023 7:38 pm
Forum: GAMES
Topic: K-man now with better ghosteating score
Replies: 4
Views: 680

Re: K-man now with better ghosteating score

How can we prove that we bought the digital version?
Do I send you the purchase receipt privately?
by salvacam
Fri Jun 30, 2023 5:20 pm
Forum: Development
Topic: The ultimate 1K coding book
Replies: 6
Views: 5680

Re: The ultimate 1K coding book

dr beep wrote: Mon Jun 26, 2023 6:14 pm
Debug is a bit harder, it woukd be on an emulator.
Sébastien Andrivet has recently published an extension for Visual Studio Code, for debugging in Z80 assembly language
https://marketplace.visualstudio.com/it ... 1-debugger
by salvacam
Fri Jun 30, 2023 11:10 am
Forum: Development
Topic: The ultimate 1K coding book
Replies: 6
Views: 5680

Re: The ultimate 1K coding book

dr beep wrote: Mon Jun 26, 2023 6:14 pm Is there anything you would like to see back in the book?
How to develop on a current pc.
How to debug programs.
And of course how to use high resolution graphics
by salvacam
Thu Jun 08, 2023 11:49 am
Forum: GAMES
Topic: ZX81 1k resource management game
Replies: 4
Views: 1118

Re: ZX81 1k resource management game

In 2021 they recovered this game, although in that you only managed food.
https://zx81hoy.gitlab.io/2021/12/29/kingdom
The blog is in Spanish, the game is in English and Spanish

It can also be Dictator
http://www.zx81stuff.org.uk/zx81/tape/Dictator