Search found 2043 matches

by dr beep
Thu Feb 29, 2024 10:44 pm
Forum: ZX BASIC
Topic: multi-statement in zx81 basic?
Replies: 5
Views: 171

Re: multi-statement in zx81 basic?

msknight wrote: Thu Feb 29, 2024 9:28 pm Thanks for confirming. Just going to have to write more code :-)

Easiest is
IF condition THEN GO SUB linenumber

and at linenumber code mutiple lines and end with RETURN
by dr beep
Thu Feb 29, 2024 6:45 pm
Forum: GAMES
Topic: What's happened to revival studios?
Replies: 6
Views: 216

Re: What's happened to revival studios?

msknight wrote: Thu Feb 29, 2024 5:06 pm I can't find that handle on Discord. Perhaps there's still a #number after it?
Info on DISCORD

superogue#0159
by dr beep
Thu Feb 29, 2024 4:27 pm
Forum: GAMES
Topic: What's happened to revival studios?
Replies: 6
Views: 216

Re: What's happened to revival studios?

If you have DISCORD you could contact SUPEROGUE, That is him!
by dr beep
Wed Feb 28, 2024 9:39 pm
Forum: Spectrum BASIC
Topic: Does the zx spectrum have a fill command?
Replies: 6
Views: 235

Re: Does the zx spectrum have a fill command?

Crayon21 wrote: Wed Feb 28, 2024 9:33 pm crap. are there basic extensions that have it?
By heart betabasic has
by dr beep
Sun Feb 25, 2024 1:14 pm
Forum: Hardware
Topic: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?
Replies: 5
Views: 170

Re: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?

Comparing a ZX80/ZX81 with a ZX Spectrum: there are significant differences in hardware and in the BASIC. The memory map is not too much of a problem except that in a ZX80/ZX81 the 'display file' is determined by software. But in the ZX Spectrum, it's fixed in the 'lower' RAM area. It also is much ...
by dr beep
Sun Feb 25, 2024 12:58 pm
Forum: Hardware
Topic: 16k Sinclair issue 1 pack
Replies: 33
Views: 812

Re: 16k Sinclair issue 1 pack

Try this game without RAM-pack.
Does the ZX81 show the right picture then?

You can do it, the game is my 1K 3D Random maze (Game 5 of 81 1K hires games)
by dr beep
Sun Feb 25, 2024 12:55 pm
Forum: ZX BASIC
Topic: New Screen Saver :-) Enjoy!
Replies: 3
Views: 343

Re: New Screen Saver :-) Enjoy!

1024MAK wrote: Sun Feb 25, 2024 11:15 am Here's my screensaver:

IMG_7867.jpeg

Runs on a 1K machine.

Mark
Shorter:

Code: Select all


+ABS INT -PI

can be

-INT -PI
[/code\
by dr beep
Sun Feb 25, 2024 12:48 pm
Forum: Hardware
Topic: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?
Replies: 5
Views: 170

Re: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?

Is it a matter of different address mapping, such as it would work if you had a system that remapped the address space when running a program for another system, or are they fundamentally different? My emulators remap all memoryaddresses up 32K. In (very) short: ZX81/ZX80 #0000-#1FFF ROM #4000-#7FF...
by dr beep
Sun Feb 25, 2024 12:40 pm
Forum: Hardware
Topic: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?
Replies: 5
Views: 170

Re: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?

Hi, I'm curious in how backwards compatible programming in machine code, is between hardware in the ZX80, ZX81, Jupiter Ace and Spectrum? Define compatible. As said. Storage on tape is already different so you need additional software to load from tape. Another problem is the fact that ROM is on th...