Search found 1058 matches

by dr beep
Fri Jan 19, 2018 12:32 pm
Forum: Development
Topic: New display engine for games and more
Replies: 10
Views: 221

Re: New display engine for games and more

HI Adam I tried to run it with EO V1.6 and an emulated ZX81 havng 48K ram, but it crashes :( It works with 16K and 32K ram. So it will not work with my real 56K Zeddies???? Siggi The famous 48K bug. I encountered this in a 1K hires game. During display in upper memory an opcode with bit 6 set and u...
by dr beep
Thu Jan 18, 2018 9:48 am
Forum: GAMES
Topic: New ZX81 Games
Replies: 105
Views: 27253

Re: New ZX81 Games

About LONGJUMP: I am thinking of altering the calculation without a TANGENS-table but with a function like Probyshevs polynomials. Well.. a function that would work almost like TAN but much shorter in code and the flaw is acceptable/not noticable. This would give me room to add ZXPAND joystick suppo...
by dr beep
Tue Jan 16, 2018 11:40 am
Forum: GAMES
Topic: New ZX81 Games
Replies: 105
Views: 27253

New ZX81 Games

Name of Software: Longjump Author: Johan "Dr Beep" Koelman Release Date: 16/01/2018 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K, WRX hires Description: Another sportsim. Do a longjump. longjump.png Download link (if available for download): TEMPORRY REMOVED, SEE EDIT! Commercial / Public ...
by dr beep
Tue Jan 09, 2018 8:27 pm
Forum: Development
Topic: Boing boing!
Replies: 13
Views: 8359

Re: Boing boing!

I mean normal hires screen with 6K buffer which will work on ZXMORE.
by dr beep
Tue Jan 09, 2018 1:31 pm
Forum: Development
Topic: Boing boing!
Replies: 13
Views: 8359

Re: Boing boing!

Gameplay is a nice feature with the dropping top.
This can become a 1K hires (or normal to play with ZXMORE ;-) )
by dr beep
Fri Jan 05, 2018 2:14 pm
Forum: Development
Topic: Fast PLOT routine
Replies: 7
Views: 200

Re: Fast PLOT routine

Define PLOT.

Zx81 pixels (4x4) or 1x1 hires.

It is possible to use scanning for parameters.
Assume fullscreen or not. Fullscreen is faster
by dr beep
Fri Dec 29, 2017 7:24 pm
Forum: ZX BASIC
Topic: Who is up for a 1K BASIC challenge?
Replies: 3
Views: 193

Re: Who is up for a 1K BASIC challenge?

I will skip the BASIC since I can do much more in 1K in machinecode.
Even some kind of pixelwise snowingeffect in hires.
(See facebook my firework demo, the routine could be used for snoweffect too)
by dr beep
Mon Dec 25, 2017 10:28 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 105
Views: 27253

New ZX81 Games

Name of Software: Olympic swimming Author: Johan "Dr Beep" Koelman Release Date: 25/12/2017 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K, WRX hires Description: Swim to become a champion. Each round contestants get better. Set a fastest time too. swim.png Download link (if available for do...
by dr beep
Mon Dec 18, 2017 2:30 pm
Forum: GAMES
Topic: New ZX81 Games
Replies: 105
Views: 27253

New ZX81 Games

Name of Software: Humpty Dumpty's egg drop Author: Johan "Dr Beep" Koelman Release Date: 15/12/2017 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K, WRX hires Description: Drop Humpty Dumpty safely on the platform below or else..... Humpty.png Download link (if available for download): 40 Hum...
by dr beep
Fri Dec 15, 2017 5:36 pm
Forum: GAMES
Topic: Happy 50th birthday....
Replies: 8
Views: 311

Re: Happy 50th birthday....

Moggy wrote:
Fri Dec 15, 2017 10:51 am
Baa Bloody kids and their new fangled computermabobs. :twisted:

Happy Birthday DR Beep it's all downhill from now on trust me. :lol:
Great, makes riding a bike a lot easier.