Search found 214 matches

by David G
Tue Aug 16, 2022 1:35 am
Forum: Development
Topic: [ZX81 Type-in] ZX-81 GT COMPILER
Replies: 7
Views: 384

Re: [ZX81 Type-in] ZX-81 GT COMPILER

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...
by David G
Tue Aug 16, 2022 1:22 am
Forum: GAMES
Topic: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)
Replies: 11
Views: 4422

Re: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)

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...
by David G
Mon Aug 15, 2022 4:26 am
Forum: GAMES
Topic: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)
Replies: 11
Views: 4422

Re: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)

Thanks. It seems 1.29 is the latest? Pity it does not work
by David G
Sun Aug 14, 2022 4:06 am
Forum: Development
Topic: [ZX81 Type-in] ZX-81 GT COMPILER
Replies: 7
Views: 384

Re: [ZX81 Type-in] ZX-81 GT COMPILER

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...
by David G
Sat Aug 13, 2022 11:27 pm
Forum: GAMES
Topic: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)
Replies: 11
Views: 4422

Re: "In nihilum reverteris" a big text-adventure game in English (AY music / hi-res)

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
by David G
Thu Aug 11, 2022 9:17 pm
Forum: Development
Topic: [ZX81 Type-in] ZX-81 GT COMPILER
Replies: 7
Views: 384

Re: [ZX81 Type-in] ZX-81 GT COMPILER

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....
by David G
Tue Aug 09, 2022 8:17 pm
Forum: Development
Topic: [ZX81 Type-in] ZX-81 GT COMPILER
Replies: 7
Views: 384

Re: [ZX81 Type-in] ZX-81 GT COMPILER

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...
by David G
Tue Aug 09, 2022 3:21 am
Forum: Development
Topic: [ZX81 Type-in] ZX-81 GT COMPILER
Replies: 7
Views: 384

[ZX81 Type-in] ZX-81 GT COMPILER

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 ...
by David G
Mon Aug 08, 2022 4:47 am
Forum: Software
Topic: Word Processor: Tasword for Lambda 8300
Replies: 23
Views: 2884

Re: Word Processor: Tasword for Lambda 8300

A custom user function can be added
by David G
Sat Aug 06, 2022 12:59 am
Forum: Software
Topic: The Best Of The Plotter [1994 newsletter]
Replies: 16
Views: 1250

[ZX81 Type-Ins] A Quick Tip or 2 or 3 [UNLESS, UNTIL and FREE] - Best Of The Plotter

[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 ...