?
the 2 programs seem to contain only the instructions, no more ...
Search found 999 matches
- Thu Apr 04, 2024 12:41 pm
- Forum: GAMES
- Topic: Tetris Hell
- Replies: 1
- Views: 1000
- Mon Mar 11, 2024 8:50 am
- Forum: Development
- Topic: werewolf for the zx81 16k
- Replies: 11
- Views: 3598
- Mon Feb 26, 2024 9:17 am
- Forum: Hardware
- Topic: 16k Sinclair issue 1 pack
- Replies: 33
- Views: 4075
Re: 16k Sinclair issue 1 pack
You should use Schottky diodes to pull TTL signals to low!
The diodes and the resistor can be soldered directly to the pins of the connector:
https://forum.tlienhard.com/phpBB3/down ... hp?id=8612
(Perfectly viewable on a 22" monitor)
The diodes and the resistor can be soldered directly to the pins of the connector:
https://forum.tlienhard.com/phpBB3/down ... hp?id=8612
(Perfectly viewable on a 22" monitor)
- Sun Feb 25, 2024 11:46 pm
- Forum: Software
- Topic: Frontend for ZXpand+ with pictures on the right side?
- Replies: 7
- Views: 2357
Re: Frontend for ZXpand+ with pictures on the right side?
Wilf Rigter has written programs, which use hires display in the upper screen area and text mode in the lower area.
So everything is possible, when using a ZX81, but somebody needs to do it
So everything is possible, when using a ZX81, but somebody needs to do it
- Sat Feb 24, 2024 4:00 pm
- Forum: Hardware
- Topic: I've borked it
- Replies: 123
- Views: 11568
Re: I've borked it
Hopefully you have plugged in the CPU and ULA the right direction, NOT as shown in the ZX81 manual chapter 25:
https://www.manualslib.com/manual/12017 ... =71#manual
https://www.manualslib.com/manual/12017 ... =71#manual
- Fri Feb 23, 2024 11:23 pm
- Forum: Hardware
- Topic: ZX81 toZX80 conversion.
- Replies: 22
- Views: 5302
- Fri Feb 23, 2024 11:13 pm
- Forum: ZX BASIC
- Topic: New Screen Saver :-) Enjoy!
- Replies: 3
- Views: 1971
Re: New Screen Saver :-) Enjoy!
A much shorter screen saver solution, and also space saving.
But be careful: works only on real original Zeddies (not on machines, using a non-compatible ROM like ZxPand, Mefisdos, ZxNU, ZxMore, ZxBlast, ZxDeluxe, ...)
Code: Select all
10 SAVE "SCREEN"
20 RUN
- Fri Feb 23, 2024 11:45 am
- Forum: Development
- Topic: Yet another graphics demo in WRX mode
- Replies: 3
- Views: 6058
Re: Yet another graphics demo in WRX mode
Here it is (incl. 50 Hz screen flicker)
- Fri Feb 23, 2024 10:55 am
- Forum: Hardware
- Topic: ZX81 toZX80 conversion.
- Replies: 22
- Views: 5302
Re: ZX81 toZX80 conversion.
You should replace the black stripes by real slots (for better cooling) ..
- Wed Feb 21, 2024 11:17 am
- Forum: Hardware
- Topic: I've borked it
- Replies: 123
- Views: 11568
Re: I've borked it
As I have already written in the other thread: bend the ram's pin /OE up and connect it to the Z80 /RD signal (e. g. at the edge connector).
That solves the timing problem during WRITE cycles ....
Siggi
That solves the timing problem during WRITE cycles ....
Siggi