Search found 33 matches

by Buka
Mon May 16, 2016 8:51 pm
Forum: Development
Topic: Creating TeleText?
Replies: 17
Views: 2644

Re: Creating TeleText?

Image

Image

Image
by Buka
Fri Dec 11, 2015 5:49 pm
Forum: Hardware
Topic: ZX81+35 Clone
Replies: 228
Views: 27077

Re: ZX81 Clone

PCB is not needed, we've been able to do PCB yourself at home. ;) Need just the body ZX80, for beauty. ;) I know that this is a simple vacuum-molded plastic. It cost a little pence, or rubles in the 90s. My brother was doing aircraft models so long ago - using this method. It seemed to me that I met...
by Buka
Fri Dec 11, 2015 10:47 am
Forum: Hardware
Topic: ZX81+35 Clone
Replies: 228
Views: 27077

Re: ZX81 Clone

My friend is now doing a clone of ZX80(With the firmware immediately by zx81) on radio parts and in the chips made in the USSR.
Not yet assembled, awaiting delivery of two chips.
The question is - is it possible to buy a replica body ZX80, and preferably cheaper?
by Buka
Mon Oct 26, 2015 10:46 am
Forum: ZX BASIC
Topic: A 24x34 XXL Display... My Demo is ready!
Replies: 9
Views: 8294

Re: A 24x34 XXL Display... My Demo is ready!

40 characters were doing for a Prestel network.

Image

It would be possible to get this ROM...
by Buka
Thu Oct 01, 2015 1:07 pm
Forum: Hardware
Topic: I want UDG !
Replies: 10
Views: 1538

Re: I want UDG !

Relatively simple refinement for UDG: http://www.timexsinclair.org/unsorted/BestOfSUMThe.pdf

Page 55.
by Buka
Mon Sep 29, 2014 10:16 am
Forum: Sinclair Misc
Topic: BASIC
Replies: 29
Views: 6301

Re: BASIC

Version a little faster, but not much.

Even faster only machine code ... ;)
by Buka
Sun Sep 28, 2014 10:06 pm
Forum: Sinclair Misc
Topic: BASIC
Replies: 29
Views: 6301

Re: BASIC

Oops, even simpler: :oops: 10 LET S=100 20 LET L=5 50 LET S$="SCORE: "+STR$ S+" LIVES: "+STR$ L 70 GOSUB 9000 80 PRINT AT 0,0;S$ 90 LET S=S+10 100 LET L=L+1 110 GOTO 50 9000 REM INV TEXT VAR 9001 FOR I=1 TO LEN S$ 9010 LET S$(I)=CHR$ (CODE S$(I)+128) 9020 NEXT I 9030 RETURN P.S. But still slow.
by Buka
Sun Sep 28, 2014 10:00 pm
Forum: Sinclair Misc
Topic: BASIC
Replies: 29
Views: 6301

Re: BASIC

10 PRINT "SCORE : "; S; " LIVES: "; L Very simple, but slow to continuously update: 1 REM EXAMLE 10 LET S=100 20 LET L=5 30 LET S$=STR$ S 40 GOSUB 9000 50 PRINT " SCORE: ";S$; 60 LET S$=STR$ L 70 GOSUB 9000 80 PRINT " LIVES: ";S$ 100 STOP 9000 REM INV TEXT VAR 9001 FOR I=1 TO LEN S$ 9010 LET S$(I)=...
by Buka
Mon May 12, 2014 11:43 am
Forum: ZX BASIC
Topic: Bouncing ball
Replies: 10
Views: 3125

Re: Bouncing ball

command LET x = CODE "symbol" much faster = VAL "NN".
Unfortunately not always suitable.

But the VAL"31" and VAL "21" should be replaced by CODE "3" and CODE"+".