Sinclair ZX80 / ZX81 / Z88 Forums

Finally we get to the actual type-in The ZX-81 does not have the ability to store on tape anything except Basic statements so where can the machine code generated by the compiler be put so that it may be recalled from tape for later use? The general answer to this is "in a Rem statement" and that is...

thanks sz81p.exe plays the sound, but still no picture. Sometimes pressing A results in dots of the screen (or the program exits) I see the Nihilum instructions say to "put all files in the Root folder", Any ideas what this specifically means? I put all files (INR.p and INR.wad) in the same folder a...

Thanks. It seems 1.29 is the latest? Pity it does not work

August 1983 installment from YOUR COMPUTER [Britain] August 1983 pages 77-83 This is exciting. Not only is ZXGT a type-in that promises to speed up BASIC programs 20-fold, but also has a behind-the-design explanation. So even though ZXGT was surpassed by the commercial follow-up MCODER II, ZXGT is s...

mrtinb wrote: ↑Tue Apr 10, 2018 3:23 pmIn EightyOne I get sound only but no graphics. I have setup 32 kB RAM, ZXpand and WRX. Any ideas?

Did you ever get this working?

I tried with EightyOne v1.29 configured for WRX and ZXpand+ . On loading it returns to K prompt. If I "Enable RAM in 8k-16k", then on loading it shows a blank screen

July continued Now for the Assembler listing: those who wish to assemble the ZXGT code given with these articles should note the following. All numbers starting $ are hexadecimal. All RST commands are in hex but the dollar is not given. The labels are L0 to L255. All comment lines should be omitted....

thanks Xav and Moggy. I was wondering if someone had already typed it in. MCODER II seems to have removed most of the limitations full text of article continued ... The ZX-81 is a good target for a compiler for several reasons. First, its interpretative Basic is very slow. On standard benchmarks run...

From YOUR COMPUTER JULY 1983 "BRITAIN'S BIGGEST-SELLING HOME COMPUTER MAGAZINE" Vol. 3 No. 7 pages 132-137 ZX-81 GT COMPILER: David Threfall's compiler could make your Basic programs run up to 60 times faster ZXGT, A type-in listing of MCODER from YOUR COMPUTER issues of July 1983 ZXGT is the first ...

A custom user function can be added

[ZX81 Type-Ins] A Quick Tip or 2 or 3[UNLESS, UNTIL and FREE] - Best Of The Plotter This is about UNLESS and UNTIL , which are not used by BASIC The third tip is FREE (print the memory available to BASIC) A QUICKY...OR TWO, OR THREE..., from The Best Of The Plotter pages 13-14 A QUICKY...OR TWO, OR ...