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Search Again :: Adv Search 1000 results in 0.054s
<1234567…34>
  • Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…

    ... the next line of your code. This should set interrupts back ... a HALT, read a byte from 23672, start reading and ... you can see the result from BASIC. You could do, if you ... br />
    Another trick for calling machine code from BASIC is to put the routine ...
    joefish joefish November 2014 Development
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... to send midi-signals by machine code, while Basic is too slow for ... the correct rom first, before calling this hookcode with RST #11E ... +3DOS
    ROM 3: 48 BASIC
    Bit 3: Disk motor ... OUT's before sending the calling hookcode #11E:
    1. ...
    bverstee bverstee April 2010 Hardware
  • storing machine code in BASICApart from putting m/c above RAMTOP, which means that it has to be POKEd or LOADed separately after the BASIC program; or putting it in a REM, which …

    Apart from putting m/c ... This installs machine code between the end of BASIC and the ... LOAD "filename" CODE mcpos,machine_code_length:
    PRINT "machine code starts at ";mcpos ... STOP
    9999 REM *** MACHINE CODE STARTS
    AFTER THIS ...
    Battle Bunny Battle Bunny August 2010 Sinclair Basic
  • Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…

    ... essential for Basic. But what if I started my machine code program and ... it's never going to return to Basic ... had something to do with code executed during interrupts. I ... I guess that the interrupt code uses system variables somehow.< ...
    Ralf Ralf January 2009 Sinclair Basic
  • storing machine code in BASICA couple of years ago I posted a routine for storing machine code between PROG & VARS, based on an idea in Toni Baker's "Mastering Machine Code". Thi…

    ... posted a routine for storing machine code between PROG & VARS ... & loaded with the BASIC, as if it was ... the last line of BASIC, even though the m ... doesn't need any BASIC to be typed other ... />
    REM INSTALL MACHINE CODE... with GO TO 9161
    Battle Bunny Battle Bunny January 2012 Sinclair Basic
  • Help a small machine code game.Hello all you clever wossers are there any GOOD?? games that are in machine code (no basic apart from the loader,rnd usr bit) but are very small ma…

    ... ?? games that are in machine code (no basic apart from the loader,rnd usr ...
    ASH-II ASH-II January 2014 Games
  • Calling machine codeOccasionally I see on ZX computers (mostly the spectrum, but I think also the '80 and '81), how someone made their machine code and wrote the bytes i…

    ... their machine code and wrote the bytes into some memory which BASIC ... like this:
    [code]PRINT USR 60000[/code]
    If the ... also do
    [code]USR 60000[/code]
    if you are ... sometimes see
    [code]RANDOMISE USR 60000[/code]
    Can someone ...
    wilsonsamm wilsonsamm February 2016 Sinclair Miscellaneous
  • Running code from the display memory?Is it possible to run machine code from the memory area used by the display file? If you were really out of memory and some part of screen is not u…

    Is it possible to run machine code from the memory area used by ... to black/black, load some code in the display area and ...
    Rickard Rickard May 2007 Development
  • Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…

    ... that after the call from BASIC the BC register holds ... That assumes you are calling the code from BASIC, which is not necessarily ... programs are often called from another instance of running ... unpacking routines are often called from machine code.

    And ...
    Patrik Rak Patrik Rak January 2009 Development
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    Now that rings alarm bells. I am calling the code from basic, but its within the code where the problems are occuring. What does IY do with regards to basic?
    carlinski carlinski September 2007 Development
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    ... . I am calling the code from basic, but its within the code where the problems ... IY do with regards to basic?[/QUOTE]


    When ...
    Dr BEEP Dr BEEP September 2007 Development
  • Loading ScreensWhat method of revealling loading screens can be achieved in BASIC or is the only one which can be done the one which reveals it line by line over an…

    ... a custom loader in machine code.

    From basic you have only the ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Development
  • Jetset Willy ATTR Buffer 2Does anyone understand how Jetset Willy uses the system vars area as screen ATTR buffer 2? H5C00 D23552. Thanks

    ... is to return to BASIC after that code over-writes all the ... of machine code from BASIC to copy data around, make sure that your machine code routine ... limit in memory for the BASIC area that you set with ...
    joefish joefish September 2014 Sinclair Miscellaneous
  • Can I record binaries from any emulator with Basic commands, machine code, macros or something?Hello I do not know if this is the right place to put this question Normally with ZXSpin if I want to save a binary file, I'm going to: file ->…

    ... , etc
    directly from commands in basic or from machine code, that is not in ... is recorded directly to PC from the emulator as different binary ...
    maeloterkim maeloterkim June 2019 Emulators
  • Starting on machine code - BASIC first?Howdy. If I wanted to start learning machine code for the speccy, from scratch, would you recommend I learn BASIC first or is it entirely possible to…

    ... learning machine code for the speccy, from scratch, would you recommend I learn BASIC ... entirely possible to start machine code with minimal BASIC knowledge?
    Also (and ... type machine code into the speccy in the first place without the BASIC ...
    Vertigo Vertigo November 2007 Development
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... a machine code function that returns the score to BASIC
    Machine code programs are ... for 'return to calling program' (in our case a BASIC routine) is ... Low byte)
    Any machine code function called from basic will return the value ...
    bigjon bigjon November 2009 Development
  • Z80 Machine CodeHello again chaps, Hope I'm in the right category for this question - I suppose it could be under 'Game Creation / Programming'. hehe Ive got far t…

    ... , and learn machine code.

    I got familiar with basic when I ... me to anazlyze and learn from?

    I need to ... /> Ive got a speccy coming from ebay this week - should be ...
    the_misguided_fool the_misguided_fool August 2003 Games
  • Basic or Machine code?Hopefully the correct area of the site to post this question. Anyways, I have got hold of several books on programming my spectrum, and I was wonderi…

    ... should learn to program in Basic, or machine code? Any help gratefully received ... should concentrate my efforts. Learn Basic first? Then MC, or just ...
    Spadge Spadge March 2006 Development
  • how to pass arguments from Basic to MC ?can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this: PRINT USR xxxxx, arg1, arg2:…

    can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this:
    PRINT USR xxxxx, arg1, arg2: ...
    or so...
    Fikee Fikee April 2006 Development
  • A few questions about machine codeOh no... another noob. I'm giving my first steps in assembler (finally, after 20 years stuck in BASIC). I read a SU article explaining that if I wan…

    ... 20 years stuck in BASIC). I read a SU ... call 1366
    jp 30285[/CODE]

    Another question ... I call a routine from the spectrum rom, because ...
    I have a machine code tutorial here and I will ... I still see registers as BASIC variables, and I want ...
    zxbruno zxbruno August 2007 Sinclair Miscellaneous
  • How can I view code from a game?Hi All, I had a Spectrum years ago and it is what started my love for playing games. I have recently been playing some of the old games I used to pl…

    ... cult games and Head Coach from addictive software.
    I ... copying the code straight from the original but hopefully learning from it.< ... there anyway of extracting the code from the .tzx or .tap ... as a basic programme as I don't understand machine code, I ...
    euronymous euronymous August 2007 Sinclair Miscellaneous
  • One Liner - Machine CodeHi Dr. BEEP, Digital Prawn, et. al., I think that what you guys have achieved with the one liner contest is absolutely amazing. It brought about wh…

    ... ZX BASIC that no one could have dreamed of. Apart from my ... a resultant machine code program (up to 289 bytes of machine code).

    BASIC by pressing "a" (quit).
    from here:[/B][/color]
    [ ...
    BloodBaz BloodBaz November 2007 Development
  • Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…

    ... with transferring games to run from microdrive.
    Typically ... , here's the result from a lazy Sunday afternoon, ... link

    [CODE];
    ; machine code microdrive file loader
    ; ... /> push hl ; preserve return to basic
    exx
    ;
    jp jp August 2009 Development
  • Printing in 64 columns, from Basic?Not strictly a Sinclair Basic question but... Is there any known machine code utility that allows something similar to PRINT AT that can be called fr…

    ... Sinclair Basic question but... Is there any known machine code utility ... that can be called from Basic but uses 64 or ... /> I'm creating small Basic programs that allow me to ... 40 and 64 column machine code routines out there but, ... easy to call from Basic? Thanks!
    zxbruno zxbruno October 2009 Sinclair Miscellaneous
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    How do you go about it?

    If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it?

    I wouldnt know where to start... :confused:
    daveysludge daveysludge January 2012 Development
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ... spectrum machine code. Its so frustrating to sit infront of a basic listing ... games and tying in programs from the magazines.
    But ... the 0 was from some side efect...

    [code]
    0601 ... affect the outcome (aside from adding extra opps to the ...
    wibble wibble August 2013 Development
  • Converting Basic code into machine codeIm just interested to know if I can converter a game I've written in basic into Machine code, Is their a program that can do this??

    Im just interested to know if I can converter a game I've written in basic into Machine code, Is their a program that can do this??
    nonsenceinbasic nonsenceinbasic September 2013 Development
  • Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.

    How do you go about changing PAPER and BORDER colours from machine code?

    I've forgotten the system variables for border and paper.
    daveysludge daveysludge July 2014 Development
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    How do you LOAD "" CODE from machine code?

    I have ... a REM statement in a basic program.

    I ... LOAD "" CODE routine, nothing fancy headerless loaders, just the basic function.< ...
    ;LOAD 128 bank 6 code

    ;LOAD main game ...
    daveysludge daveysludge October 2014 Development
  • Machine code loaderI was wondering how people wrote games. On the trail to this knowledge I discovered a machine code loader in basic, and also z80 assemblers. Which i…

    ... knowledge I discovered a machine code loader in basic, and also z80 assemblers ...
    Duxbuz Duxbuz August 2001 Sinclair Miscellaneous
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