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FOR vs LET (speed)Hi dear friends. A question for you 10 FOR I = 0 TO 10 11 PRINT I 12 NEXT I 10 LET I = 0 20 PRINT I 30 LET I = I+1 40 IF I < 11 THEN GOTO …
... also wonder how they implemented FOR NEXT on the ZX81. I ... In which case I expect FOR NEXT loops would be terribly slow ... ]
Well, the ZX80 FOR-NEXT variable is similar. Remember, the ... .
The ZX80 FOR-NEXT variable is:
Name (letter ... -
FOR vs LET (speed)Hi dear friends. A question for you 10 FOR I = 0 TO 10 11 PRINT I 12 NEXT I 10 LET I = 0 20 PRINT I 30 LET I = I+1 40 IF I < 11 THEN GOTO …
... test the speed of a FOR - NEXT on a ZX80 to see ... ZX81 version (in FAST mode) for a lot of things because ... -
FOR vs LET (speed)Hi dear friends. A question for you 10 FOR I = 0 TO 10 11 PRINT I 12 NEXT I 10 LET I = 0 20 PRINT I 30 LET I = I+1 40 IF I < 11 THEN GOTO …
I think the FOR NEXT loop is slightly quicker - its recommended in this article about writing faster BASIC programs:
https://archive.org/details/Input_Vol_3_No_30_1997_Marshall_Cavendish_GB/page/n1/mode/2up -
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I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... -game scene transitions (indoors/outdoors for eg) is super quick! No ... (presuming they will update it for next gen)!Strongest aspect of Spectrum BASICWhat would you say is the strongest aspect of Spectrum BASIC compared to other BASICs on other micros at the time. I think it might have been the Fun…
... be abbreviated (e.g. “N.” for NEXT), the Acorn Electon included a ... system for keyword entry for the most common keywords ...Spectrumpedia second edition - it's here!Hi everybody, it is with great pleasure that I annonunce you the release of the new Spectrumpedia in its second edition, revised and enhanced in e…
... translate the second in time for next 23rd of April, but I ...Crappy Amazon suggestionsDo you get crappy Amazon suggestions. For instance the obvious are "I see you bought a fridge, here are some more fridges in case you want to buy …
... /> Also if I pay extra for next day delivery, and it doesn ... 't arrive the next day, why can't I ... trick people into signing up for Prime and then making it ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... /> ENDIF
halt ; wait for next vblank
IF TIMING
inc de ; next pixel row data
; are ... carryon:
inc h
; next row
djnz .loop
next address from the table (next address = current address ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... /> ENDIF
halt ; wait for next vblank
IF TIMING
inc de ; next pixel row data
; are ... carryon:
inc h
; next row
djnz .loop
next address from the table (next address = current address ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...Things that people >= 40 (ish) would recognize (and others would likely not)#1: Used to see these all over the place, usually right above the bath tub. [img]http://www.constructionphotography.com/ImageThumbs/A052-01718/3/A0…
... these types of old radios for next to nothing. I kinda wanted ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... context info on the heap for next time around, so it's ... /> [code]
; Console functions for ZX Spectrum
ORG ... font
inc l ; next line of font
ld ... str_err_too_few_args db "too few arguments for", CR ; must be followed by ...SCF/CCF flags - new discoveryI can't believe that no one is interested in discussing the additional, previously undocumented internal state of the Z80 CPU I have discovered recen…
... stack
push hl ;next
push hl ; ... stack
push hl ;next
push hl ; ...
push hl ;next
push hl ; ... /> djnz .loop1 ;repeat for next 12*2 bytes
...FOR 1 TO 0 - Execute "no times"?I checked a couple of basic variations, and generally a for loop executes at least once, even if you create a negative loop without step -1. But in s…
... basic variations, and generally a for loop executes at least once ... dodgy as I have many "next x" in my program and ... logically spread out. Many are nested under if statements, and some ... initial for statement.
Anyone knows how it finds "next x ...Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... excellent JouledperCoulomb videos on Youtube for the basics and I am ... stays.
My next step would be to start ... must have been a reason for failing memory and it does ...Arcade Game Designer for ZX Spectrum Next/Timex 8x1For those of you who are not members of the Spectrum Next or AGD Facebook groups, I've released a new editorless AGD compiler. While it has been des…
For those of you who are not members of the Spectrum Next or ... has been designed with the Next in mind, it will work ... and some example coding templates for the usual stuff.
for more of the Next's capabilities. But that's for another ...Editorless AGD Now for Spectrum as well as Next/TimexI've updated the editorless version of AGD to 0.3, fixing the Next/Timex CLS routine and adding a Spectrum engine and compiler. For those not alread…
... Next/Timex CLS routine and adding a Spectrum engine and compiler. For ... you can create a game for both machines.
The ...
