As you can see, the picture is difficult to read.
This is a picture of the ZXpand Commander.
Search found 638 matches
I want to hardcode the ZXpand ROM for PAL, as the Lambda 8300 has a different PAL/NTSC detection. I changed 02DF: ADD A,1F to 02DF: LD A,37 This makes MARGIN be $37 always which I can read in the disassembled ZX81 ROM is for UK (PAL). The two statements have the same 7 T-states, so timing should be ...
- Mon Apr 23, 2018 10:06 pm
- Forum: Sinclair Misc
- Topic: Screen highlighting ZX81
- Replies: 2
- Views: 100
I remember a year or more ago someone posted a demo using a ZXpand to show a menu of about 20 selection options. When a letter was pressed on the keyboard a screen was loaded in either text or graphics. Another key would swap between text and graphics. This would show about 20 highlights of ZX81, it...
Great program. One thing I miss: Unfortunately Execute does only work on .P files. I have files with different extensions that are ordinary program files. .AS2 ZX Assembler 2 source .TAS Tasword files .WS2 WordSinc II.3 files .BER Berch Assembler source Etc. These cannot be loaded with ZXpand Comman...
- Thu Apr 19, 2018 3:36 pm
- Forum: Hardware
- Topic: How to repair a ZX81XT extender board (or slot edge connector)
- Replies: 5
- Views: 318
I have used a ZX81XT to get space between my Lambda 8300 and the ZXBKBv3 keyboard controller I've built. But yesterday all kinds of chars came randomly on the screen, but the computer worked. It was hard to use, as most of the chars on the screen were corrupted. This was very frustrating. Finally I ...
- Mon Apr 16, 2018 8:00 am
- Forum: Lambda 8300/ Power 3000 Lounge
- Topic: Lambda 8300 pros and cons
- Replies: 0
- Views: 214
Pro Built-in sound Built-in Joystick Executes machine code above memory address 32k (no M1NOT problem) Con Not all hardware extensions work No Hires or Pseudo Hires (WRX, G007, ARX) No User Defined Characters (UDG) External keyboard corrupts load from tape Detection of NTSC/PAL on different I/O-por...