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  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... so of memory reserved for variables and a buffer whose size ...
    na_th_an na_th_an July 2006 Sinclair Basic
  • Restore Registers Returning to BASICI should really know this, but I've not written code that requires a return to BASIC for a loooong time. What registers need to be preserved / resto…

    ... update all the other system variables to match.
    Philip Kendall Philip Kendall July 2006 Development
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... POKE it in the system variables thats what I say.
    Bethan Bethan July 2006 Sinclair Basic
  • What is the rarest sinclair item u have ?For me, its a Sinclair PC200 boxed working and complete, has anyone any idea what its worth ? I am going to be selling it along with the rest of my …

    I don't have any of my old stuff anymore (it all went to my cousins son) but I would have thought my boxed complete copy of Rebelstar Raiders would have been fairly rare

    other than that I'd have loved to own a complete setof IF2 cartridges
    chop983 chop983 July 2006 Sinclair Miscellaneous
  • Sinclair 128K on MicroLiveUploaded today by Larry [url]http://www.youtube.com/watch?v=MgTCE6PTXsE[/url] Fred Harris puts the boot in. Alison Maguire defends the Speccy to …

    ... done on the previously released if2, guarantees no compatibility issues. But ...
    Alcoholics Anonymous Alcoholics Anonymous July 2006 Sinclair Miscellaneous
  • Detect if program was loaded from tape or microdriveHow (if at all) can a BASIC program detect if it was loaded from tape or microdrive? This can be helpful to then load the screen or more machine code…

    ... you not use the system variables to find out which line ... you then use the system variables to see which statement in ...
    DEATH DEATH July 2006 Development
  • Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…

    ... that has to keep checking variables (e.g. to deal with ...
    robpearmain robpearmain August 2006 Development
  • for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…

    ... , and
    b) the system variables and other BASIC structures may ...
    baze baze August 2006 Hardware
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ... for some pointers and swap variables.

    For sorting in ...
    GOC GOC August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ... an array of string$
    ; variables. Adapted from an article by ...
    rtunes rtunes August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ... for some pointers and swap variables.
    [/quote]

    And ...
    Alcoholics Anonymous Alcoholics Anonymous August 2006 Development
  • CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…

    ... /> 1. Clears out all the variables.
    2. Clears the display ...
    trellis trellis September 2006 Sinclair Basic
  • CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…

    I compiled this list of ones that I had come across for css. However they are more an indication of last-minute changes than any poor standards. The book remains one of the best manuals ever.
    The ZX81 manual had a minor error in the RND explanation ...
    Geoff Geoff September 2006 Sinclair Basic
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... printer buffer and the system variables in BASIC, but they could ...
    ewgf ewgf September 2006 Sinclair Miscellaneous
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... small set of registers to variables. The registers are not orthogonal ...
    Alcoholics Anonymous Alcoholics Anonymous September 2006 Sinclair Miscellaneous
  • Emulator for viewing variables dataI am looking for a windows emulator, this emulator can view variables data used in game (tap,sna,z80...). It knew edit variables data. I dont remembe…

    ... emulator, this emulator can view variables data used in game (tap ... ,z80...). It knew [b]edit variables data[/b]. I dont remember ... [b] with items - [b]variables, system variables, breakpoints, memory map, watches...[/b ...
    Dunny Dunny September 2006 Emulators
  • Emulator for viewing variables dataI am looking for a windows emulator, this emulator can view variables data used in game (tap,sna,z80...). It knew edit variables data. I dont remembe…

    I am sure it was not early Basin. I dont remember how it look. Emulator was able to view variables like Basin can do that. And it wasn't SINBAS by Pavel Napravnik. I am talking about windows emulator, not dos.
    vladisek vladisek September 2006 Emulators
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... procedures and functions needed local variables, which take up stack space ...
    Dunny Dunny September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... requires to pass lot of variables, what means long lines and ...
    piters piters September 2006 Sinclair Miscellaneous
  • Stupid SuperstitionFive minutes ago in the office, one of my female work colleagues was working away at the desk opposite. I was just in the middle of typing a reply on…

    ... company practice to prefix the variables with the letter V followed ...
    jonathan jonathan September 2006 Chit chat
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... hate 'parameter passing' and local variables. I find Pascal programs hard ... , easy to read, nice global variables etc., and you could even ...
    chaosmongers chaosmongers September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... foundations of a language. Loops, variables, etc.. It is easy to ...
    Lee Fogarty Lee Fogarty September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... of the day, you use variables, you makes decisions and you ...
    Kiwi Kiwi September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... impossible) to do without local variables.
    Probably organising a program ...
    Kiwi Kiwi September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... relied on easily corruptible Global variables.[/B][/FONT]
    [FONT=Lucida ...
    CP/M User CP/M User September 2006 Sinclair Miscellaneous
  • CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…

    ... ".

    [quote=Geoff]System variables PR-CC[/quote]

    robert@fm robert@fm September 2006 Sinclair Basic
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... exactly what and how many variables you'll need, and then ...
    ewgf ewgf September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... programming concepts like looping, functions, variables and scope, etc) and after ...
    Alcoholics Anonymous Alcoholics Anonymous September 2006 Sinclair Miscellaneous
  • Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…

    ... the right datatype for your variables. You can turn the computer ...
    monty.mole monty.mole September 2006 Sinclair Miscellaneous
  • Which would be fasterSay you want to use a variable value of 0 to 255 in a BASIC program, which way would be fastest? Say for arguments sake you wanted to use two variabl…

    ... ) Using the standard Spectrum BASIC variables, i.e a and b ... are slightly slower than using variables, for what it's worth ... operations

    1) normal variables (for example nnn, where nnn ...
    Matt_B Matt_B September 2006 Development
<1…15161718192021…34>

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