Search found 3232 matches
- Mon Mar 18, 2024 5:02 pm
- Forum: Development
- Topic: Enhanced ARX True High Resolution Display Driver
- Replies: 13
- Views: 669
Re: Enhanced ARX True High Resolution Display Driver
I recall there was an UDG4ZXpand board (which I think Andy created also but correct me if I am wrong). I'm wondering if this will make the 8K-16K RAM provide by the ZXpand ARX compatible. Does anyone know? I have tried the demo on Andy's UDG4ZXpand board on an issue one ZX81 with an issue three ZXp...
- Mon Mar 18, 2024 11:57 am
- Forum: Development
- Topic: Enhanced ARX True High Resolution Display Driver
- Replies: 13
- Views: 669
Re: Enhanced ARX True High Resolution Display Driver
Works with SZ-81 ok.
- Mon Mar 18, 2024 11:30 am
- Forum: ZX BASIC
- Topic: Strange integer behaviour
- Replies: 11
- Views: 573
Re: Strange integer behaviour
Internally accurate to 9 - 10 digits with 8 displayed after rounding.
- Thu Mar 14, 2024 5:04 pm
- Forum: Hardware
- Topic: Atari joystick without ZXpand+
- Replies: 33
- Views: 1082
Re: Atari joystick without ZXpand+
The Cheetah.
- Thu Mar 14, 2024 4:59 pm
- Forum: Hardware
- Topic: Atari joystick without ZXpand+
- Replies: 33
- Views: 1082
Re: Atari joystick without ZXpand+
This be the beast.
- Thu Mar 14, 2024 4:36 pm
- Forum: Hardware
- Topic: Atari joystick without ZXpand+
- Replies: 33
- Views: 1082
Re: Atari joystick without ZXpand+
@Michelle.
I have found two interfaces for the Zeddy one a Cheetah the other unknown. I do Have a Kempston but this I seem to remember, unlike what Mark describes, has the extra tangs as used on a Spectrum interface.
Anyhow just PM where you want them sending and I'll do the rest.
No charge.
I have found two interfaces for the Zeddy one a Cheetah the other unknown. I do Have a Kempston but this I seem to remember, unlike what Mark describes, has the extra tangs as used on a Spectrum interface.
Anyhow just PM where you want them sending and I'll do the rest.
No charge.
- Thu Mar 14, 2024 2:28 pm
- Forum: Hardware
- Topic: Atari joystick without ZXpand+
- Replies: 33
- Views: 1082
Re: Atari joystick without ZXpand+
I'm fairly certain I have a Kempston interface for the 81 somewhere, which I acquired in a job lot. I have no use for it so if I can dig it out you are more than welcome to it.
- Wed Mar 13, 2024 2:54 pm
- Forum: Hardware
- Topic: ROM base for ZXpand+
- Replies: 2
- Views: 199
Re: ROM base for ZXpand+
According to Charlie it's based on the 622 ROM, but stripped of its Character table and the printer routines to make room for those needed by the spand. When in use the spands ROM points to the character table in the zeddy ROM for its needs and obviously CONFIG X is required to use the zeddy ROM for...
- Mon Mar 11, 2024 5:04 pm
- Forum: Software
- Topic: Forth Hints & Tips: Kaleidoscope
- Replies: 11
- Views: 774
Decimals in Forth. Part two.
Part two. Continuing on with our exploration of decimals in Forth we shall explore number formatting and the use of the system variable DPL. At this point I would like to recommend a most excellent Forth publication which is not only based on Forth-79 but whose superb, pertinent examples and exercis...
- Mon Mar 11, 2024 2:57 pm
- Forum: Development
- Topic: werewolf for the zx81 16k
- Replies: 11
- Views: 794
Re: werewolf for the zx81 16k
Excellent Siggi! Except you left a space between . "