Search found 542 matches
- Fri Aug 25, 2023 1:09 pm
- Forum: Software
- Topic: ZX Spectrum 1-bit music running on ZX81
- Replies: 3
- Views: 5654
Re: ZX Spectrum 1-bit music running on ZX81
Follin3ch is impressive !
- Fri Aug 25, 2023 1:04 pm
- Forum: Software
- Topic: Campus LISP on a ZX80
- Replies: 2
- Views: 4468
Campus LISP on a ZX80
This is a very experimental port of the Campus LISP on a ZX80 with 16K RAM. clisp_zx80_16K.o (BEWARE this thing is buggy, I'm still trying to stabilize it furtherly, in example PROGN does not work) There's very little you can do with it, the memory gets quickly filled, the base functions are at the ...
- Fri Aug 25, 2023 12:17 pm
- Forum: Software
- Topic: Loading on the ZX80
- Replies: 3
- Views: 6060
Re: Loading on the ZX80
This is so intriguing !
- Fri Aug 25, 2023 11:01 am
- Forum: Development
- Topic: Using Inkeys
- Replies: 23
- Views: 13270
Re: Using Inkeys
100 IF INKEY$ <> "" THEN GO TO 100
110 IF INKEY$ = "" THEN GO TO 110
120 LET A=CODE INKEY$ (or LET A$=INKEY$)
On the Spectrum I used to put:
100 PAUSE 0 (or PAUSE NOT PI) to reduce the code size and be quicker in typing
I neve knew of the ZX81 bug with PAUSE !
110 IF INKEY$ = "" THEN GO TO 110
120 LET A=CODE INKEY$ (or LET A$=INKEY$)
On the Spectrum I used to put:
100 PAUSE 0 (or PAUSE NOT PI) to reduce the code size and be quicker in typing
I neve knew of the ZX81 bug with PAUSE !
- Thu Aug 24, 2023 10:39 pm
- Forum: Development
- Topic: Yet another graphics demo in WRX mode
- Replies: 3
- Views: 4544
Re: Yet another graphics demo in WRX mode
thank you, a picture of this thing running on a crt TV would be much appreciated
- Thu Aug 24, 2023 10:37 pm
- Forum: Software
- Topic: ZX80 software
- Replies: 7
- Views: 5769
Re: ZX80 software
the ideal thing would be an old bw crt based tv set. monitors or colour tv can be troublesome the screen on the zx80 obviously flickers a lot, I could get a more stable input routine for z88dk (which I just discovered to be buggy in decoding some symbol) , but it still does bad things on a chip cont...
- Thu Aug 24, 2023 4:30 pm
- Forum: Software
- Topic: ZX80 software
- Replies: 7
- Views: 5769
Re: ZX80 software
The lack of software is easily explained, the ZX81 ROM could be put in a ZX80. In fact it was designed to work also as a "retrofit", but obviously you couldn't take benefit of the SLOW feature. Some of the existing ZX81 programs could then run on a ZX80, there were commercial program declaring they ...
- Thu Aug 24, 2023 11:57 am
- Forum: Development
- Topic: Yet another graphics demo in WRX mode
- Replies: 3
- Views: 4544
Yet another graphics demo in WRX mode
This is something I grabbed time ago from an SVG file and rendered with the graphics functions I built for z88dk. It's my favourite one because it gives the feeling of a human drawing it in the creation process. Hope I'm not duplicating something I posted already. ...the screenshot is old stuff got ...
- Sun Aug 07, 2022 3:57 pm
- Forum: Development
- Topic: A proposal. Just an idea.
- Replies: 10
- Views: 2342
Re: A proposal. Just an idea.
there's been plenty of development around the zx81, I'm discovering something everyday, also in the historical papers and old online articles. To add something which wasn't mentioned yet, think at the zx1541 interface or the MEFISDOS. https://www.sinclairzxworld.com/viewtopic.php?t=2198 https://docz...
- Mon Jul 25, 2022 5:58 pm
- Forum: Development
- Topic: Relocatable Machine Code
- Replies: 25
- Views: 5337
Re: Relocatable Machine Code
Exactly ! https://github.com/z88dk/techdocs/blob/f8dbb2f00f794219345481eea544af868c71477c/targets/zx/supercode.asm#L2470 ..While I'm mentioning SuperCode, I think that a bold programmer could try to convert some of those routines, e.g. https://github.com/z88dk/techdocs/blob/f8dbb2f00f794219345481eea...