Search found 1136 matches

by dr beep
Sat Jan 12, 2019 9:18 am
Forum: Software
Topic: ZX81CRSS.ASM
Replies: 12
Views: 2008

Re: ZX81CRSS.ASM

Very nice way to save some bytes in 1k-mode, which is truly needed. In fact,when not returning to BASIC you could set a table or variables on some part of the sysvar. Take a look at the source of RUB-1K where data is copied over sysvar and then that part of memory is used to set up the sides of the...
by dr beep
Fri Jan 11, 2019 8:50 pm
Forum: Software
Topic: ZX81CRSS.ASM
Replies: 12
Views: 2008

Re: ZX81CRSS.ASM

When you want the shortest start to MC you can use this. Even the repair of Dfile can be done on the screen when you clear the screen and the code too, but that is a bit harder. ; Shortest code to autostart MC on a ZX81 org #4009 ; in LOWRES more sysvar are used, but in this way the shortest code ; ...
by dr beep
Tue Jan 08, 2019 5:42 pm
Forum: ZX BASIC
Topic: Random maze generator.
Replies: 9
Views: 2167

Re: Random maze generator.

With the display method of HIDDEN PICTURE I think I can code a hidden 2D maze on the screen in the same size that will show fields you visited like a map and you must find a random exit.

This would fit 1K in lowres.
by dr beep
Sat Jan 05, 2019 11:26 pm
Forum: ZX BASIC
Topic: 1k bouncing ball
Replies: 2
Views: 198

Re: 1k bouncing ball

by dr beep
Tue Jan 01, 2019 3:59 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 124
Views: 66413

New ZX81 Games

Name of Software: Dodgems Author: Johan "Dr Beep" Koelman Release Date: 01/01/2019 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K hires Description: Ride the track, but avoid the car coming to you Dodgems.png Download link (if available for download): dodgems.p Commercial / Public Domain / F...
by dr beep
Tue Jan 01, 2019 1:18 pm
Forum: Development
Topic: Smooth horizontal scrolling
Replies: 6
Views: 963

Re: Smooth horizontal scrolling

Good morning, I'm trying to do a smooth horizontal scrolling while developping a small game. The image is low-res graphic chars, and I want to shift line 16 to 24 from right to left smoothly. As can be seen in the attached file (zipped avi), this is far from smooth. UnsmoothHorizontalScrolling.zip ...
by dr beep
Wed Dec 26, 2018 6:17 pm
Forum: Hardware
Topic: ZX81 loading of programs not working
Replies: 25
Views: 2220

Re: ZX81 loading of programs not working

A 1K file needs about 30 sec to load.
by dr beep
Sun Dec 23, 2018 10:41 pm
Forum: Development
Topic: New year, new projects?
Replies: 2
Views: 254

Re: New year, new projects?

Well I keep searching for ideas to code in 1K, both lowres and hires.

Don’t know if I will switch back to ZX Spectrum to finally finish my ACES- project.
by dr beep
Sun Dec 23, 2018 8:18 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 124
Views: 66413

New ZX81 Games

Name of Software: Weedkiller Author: Johan "Dr Beep" Koelman Release Date: 23/12/2018 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K hires Description: Kill the weed on the green before it grows to bush Weedkiller.png Download link (if available for download): weedkill.p Commercial / Public ...
by dr beep
Wed Dec 12, 2018 7:04 pm
Forum: GAMES
Topic: My games in 2018...
Replies: 1
Views: 364

My games in 2018...

Almost christmas. Time to summun up all games I coded this year. 01 Longjump 02 Hurdles 03 Loderunner 04 Hidden Picture 1 05 Hidden Picture 2 06 Stupid Cupid 07 Ricochet 08 Minesweeper 09 Boxing 10 Dr Who 11 Staying Alive 12 Moonlander 13 Minigolf 14 Firefighter 15 RUB-1K All still available, so if ...