Search found 2060 matches
- Sat Mar 23, 2024 6:04 pm
- Forum: GAMES
- Topic: New ZX81 Games
- Replies: 363
- Views: 681980
New 1K Game : SOLITAIRE (and extended 1K+ version)
Name of Software: Solitaire Author: Johan "Dr Beep" Koelman Release Date: 23/03/2024 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres with CHROMA COLOUR AND GRAPHICS possible Commercial / Public Domain / Free ware / Other - please specify? Freeware Description: The classic cardgame in 1...
- Mon Mar 18, 2024 7:55 am
- Forum: Development
- Topic: Enhanced ARX True High Resolution Display Driver
- Replies: 13
- Views: 628
Re: Enhanced ARX True High Resolution Display Driver
Great read, now I need to take a look at the code.
- Tue Mar 12, 2024 7:38 am
- Forum: ZX BASIC
- Topic: 7Eh near end of REM
- Replies: 4
- Views: 222
Re: 7Eh near end of REM
Why would you edit machinecode? You should always place new versions of your code over the line, but better code outside the ZX81 and built a .P from that. In this way you can use much more of the RAM, like printerbuffer, sysvar and no loss of bytes for line nimbers and lengt or start of machinecode.
- Mon Mar 11, 2024 11:12 pm
- Forum: GAMES
- Topic: New ZX81 Games
- Replies: 363
- Views: 681980
New 1K Games : HRLBS
Name of Software: HRLBS Author: Johan "Dr Beep" Koelman Release Date: 11/03/2024 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K lowres Commercial / Public Domain / Free ware / Other - please specify? Freeware Description: HRLBS.png Downloadlink: HRLBS.p Source: HRLBS.asm Video https://www.yo...
- Sun Mar 10, 2024 10:25 am
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
Re: RAM speed issue
So I've got two partially failed ULAs ... or potentially to be generous, two ULA's that can't perform to the standard where WRX hires graphics will work, even if I was using the original 1k RAM. I think you have bunked why "some" ZX81s did not work with my hiresgames. We wanted to release a tape wi...
- Sat Mar 09, 2024 5:51 pm
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
Re: RAM speed issue
I made a simple testprogram out of a game.
After NEWLINE you will see 16 hires lines (well more, but also lines with zero)
First line 1 and 1
spaceline
Second 2 and 2
spaceline
Third 4 and 4
etc....
So you can see which bit are set by your computer.
After NEWLINE you will see 16 hires lines (well more, but also lines with zero)
First line 1 and 1
spaceline
Second 2 and 2
spaceline
Third 4 and 4
etc....
So you can see which bit are set by your computer.
- Sat Mar 09, 2024 5:40 pm
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
Re: RAM speed issue
Closer look at the picture
First thought:
The text is ok, but some bits are
somehow set.
The best thing you could have is a simple
display with just 1 (adjustable) value and see how that display appears.
First thought:
The text is ok, but some bits are
somehow set.
The best thing you could have is a simple
display with just 1 (adjustable) value and see how that display appears.
- Sat Mar 09, 2024 5:08 pm
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
- Fri Mar 08, 2024 3:11 pm
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
Re: RAM speed issue
AFAIK Berzerk is pseudohires
- Fri Mar 08, 2024 2:07 pm
- Forum: Hardware
- Topic: RAM speed issue
- Replies: 29
- Views: 1111
Re: RAM speed issue
I can tell you exactly what value must be read but not ATM.
Tonight earliest.
I WROTE THE GAME
Tonight earliest.
I WROTE THE GAME