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<1234567…34>
  • What did Spectrum BASIC lack (and was BBC BASIC so good?)Over the years, I've read in various multi-format magazines, that BBC BASIC was probably the best BASIC available on an 8-bit machine. I've never use…

    ... Ian Collier's inline assembler for Sinclair BASIC which ... interpreter, as the builtin ROM assembler of the BBC does.
    assembler programming recently.

    assembler program needed for such ...
    Digital Prawn Digital Prawn September 2007 Sinclair Basic
  • Howto paint a squared zone of the screen ?You know what guys ? i begin to love this languaje. Cant understand why not put more effort on the 80's to learn it :( because it is really speedy. …

    So them the 'plot' rom routine is affected by the same, we cant use it in the down screen lines ?

    shiru, can you show the other version ? the one that print characters.
    arfgh arfgh June 2010 Sinclair Basic
  • Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…

    ... was any way to get PLOT, etc. to address the full ... lines of assembler to bypass that annoying restriction in the ROM at ... A,$AF)

    then PLOT, DRAW, CIRCLE, POINT will all ...
    Battle Bunny Battle Bunny August 2014 Sinclair Basic
  • A great ROMBack in the early 90s my ZX clone (called "Cobra" if anyone's interested) had a sort of a "SamRam" (actually an alternate ROM accessed via a NMI) tha…

    ... button you got a powerful assembler/monitor system. The tape copier ... or downloads regarding this great ROM and was surprised to ... absolutely magnificent. I have the ROM (there are also some scarce ... even (!) some of this alternate ROM's routines.

    ...
    GOC GOC August 2003 Sinclair Miscellaneous
  • Wanted Software to Swap for Rom Carts ;)Wot I have for grabs is 4 Complete ROM Carts which I will swap for my wants below Horace [url="http://www.cornishdavey.dsl.pipex.com/4.jpg"]http://w…

    ... for grabs is 4 Complete ROM Carts which I will swap ... : Robin Hood
    Artic Assembler (aka. ZX Assembler)
    Curse of the ...
    Cornishdavey:)) Cornishdavey:)) February 2004 Wanted
  • Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…

    ... working on some Z80 assembler for a Z80-based ... using sjasm-plus as the assembler - much nicer than using ... the code for the Spectrum ROM was being developed, presumably ... thing? Even if the ROM is only 16K, that' ... the niceties of an assembler and some way to ...
    Winston Winston December 2006 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... to use some of the plot routines from ROM3 (to ... examples in the spectrum rom seem to use the ... to addresses) in my assembler program? For instance, i ... documentation at all for ZXSpin assembler directives!

    ... to manually page in ROM 3 and RAM 0, ...
    rbsfou rbsfou January 2007 Development
  • Spin rom labels for debugger?I remember having a file with Spin that had some rom labels, I`d very much like to have it back, although the Import Labels.../Export Labels... optio…

    ... with Spin that had some rom labels, I`d very much ... it? And, did/does the assembler use the imported labels?
    FrankT FrankT March 2007 Emulators
  • alternate BASIC ROMI've come up with a few patches to the standard ROM to make it use the 128 shadow screen by default. The ROM is reorganised as follows: RAMTOP is se…

    ... few patches to the standard ROM to make it use the ... shadow screen by default. The ROM is reorganised as follows:
    PLOT

    I've done ...
    chev chev October 2008 Sinclair Basic
  • BASin assembler/disassembler issuesI would email Dunny, but his listed homepage is nonexistant, and "send a private message to" seems to ask me to log in each time. He doesn't list an …

    ... things - was playing with the assembler.

    1> An ... names for leaps into the ROM, giving one a clue as ...
    Gedlion Gedlion May 2009 Sinclair Basic
  • Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …

    ... the routines on the spectrum ROM ?
    Ad for the Spectrum ... i was watching the Rom routine called [B]PLOT-SUB[/B]
    plot x,y[/B]. But what ... routines that are on the Rom just to use them.
    arfgh arfgh June 2010 Sinclair Basic
  • Printer Printing Problem (assembler)I've a program that outputs to the lower screen at various places, using a combination of calls to RST $10 plus OUT-NUM-1 and PR-STRING. It also call…

    ... PR-STRING. It also calls PLOT and LINE-DRAW. At present ... m/code (apart from the PLOT/DRAW bits, of course) the ... doesn't work. Although the ROM call goes through the CHAN ...
    Battle Bunny Battle Bunny November 2010 Development
  • Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…

    hi! please, help with code:
    [PHP]For x=-100 To 100
    For y=-100 To 100
    If (x/2-25)*(x/2-25)+(y-50)*(y-50)
    g0blinish g0blinish November 2012 Development
  • ZX81 SP ROM Disassembly<div>Hi All,</div><div><br></div><div>For anyone who is interested in ZX81 Assembler and ASZMIC ROM...</div><div><br></div><div>I have created a disa…

    ... is interested in ZX81 Assembler and ASZMIC ROM...
    I have ... disassembly of the Comprocsys SP ROM for ZX 81 froman ... conjunction with the Comprocsys ASZMIC ROM or without (via ZX81 ... BASIC commands).
    SP ROM Disassembly Xcode project is available ...
    dbolli dbolli June 2015 Sinclair Miscellaneous
  • ZX-Assembler version 0.8 (beta) releasedDear readers, yesterday I've published ZX-Assembler in its first version 0.8. It offers you some interesting features, even if I know there are …

    ...
    better and more powerful assembler tools around:

    * ... levels deep.

    * Predefined ROM label file, that is auto ...
    all these nice ROM labels you need to access ... ZX-Spectrum ROM routines.
    Can be ...
    clausjahn clausjahn July 2015 Emulators
  • EmuZwin 128k banks in assembler Having looked at the assembler help file " ORG [{ RAMn | ROMn },] #target_address [, #dest_address ] Defines target assembling address and ta…

    Having looked at the assembler help file

    "
    ... bank (n=0..7) or ROM bank (n=0..1).
    assembler off).
    "

    Errrr ...
    MatGubbins MatGubbins August 2015 Emulators
  • Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …

    ... problem with the pixel address rom routine at 8874.

    Rom Dissassembly book, I'm trying to do the equivalent of PLOT ...
    Tobo Tobo September 2015 Development
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…

    ... : https://cygnus.speccy.cz/popis_trdos-assembler.php

    I found ... a CALL to TRDOS/Betadisk-ROM (15619 on TRDOS v5).
    ROM?
    Luzie Luzie October 2019 Development
  • Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…

    ... ZIP archive here, so the assembler listing and Sinclair BASIC wrapper ...
    Volker Volker February 2021 Software
  • pixel exact printingis there a way of doing this in basic? or by copying / modifying the rom code or using a completely new routine? so that print at x,x works more like…

    ... ? or by copying / modifying the rom code or using a completely ... x,x works more like plot x,x? any help would ... when u do it in assembler it just does it natively ... ://spectrumcomputing.co.uk/entry/8 ... Plot-Print

    unfortunately it ...
    digital digital December 2021 Development
  • About z88dk and autoexecsThis weekend I was playing a little with z88dk C cross Compiler. Amazing tool! I have three questions: 1- Does anybody know how to change the initia…

    ... pass the argument to the assembler. The rHHHH is the ... info about how to call ROM functions like PRINT, INK, ...
    printf uses the ROM print function and Lee's ... at include/graphics.h for plot, draw, circle, cls (clg ... want to access the ROM directly or do your ...
    Alcoholics Anonymous Alcoholics Anonymous February 2005 Development
  • Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…

    ... how the Sam Coup? ROM was written... (from when ... Dr Andy Wright (the ROM's author) in Sam ... CPC machine with the Pyradev assembler. I sent the binary ... graphics routines, such as PLOT, DRAW and CIRCLE, and ... replace the Spectrum's ROM. The transition to using ...
    Quazar Quazar December 2006 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... examples in the spectrum rom seem to use the ... documentation at all for ZXSpin assembler directives!
    [/quote]
    ROM 3 and RAM 0 ... />
    The z88dk assembler only attaches library code that ... reference. How can you plot a pixel (look ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …

    [QUOTE=arfgh;447640]but always when i call a ROM routine i must do the same pushes and pops ? The same ?

    push bc
    ld bc,#5d70
    Arjun Arjun June 2010 Sinclair Basic
  • How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…

    ... routine, which is what the ROM does in $203c ;PR_STRING ... -y,x+1) THEN PLOT x,y: PRINT x ... />
    Which calculates the PLOT coordinates for all of the ... I'll knock up an assembler routine to use the data ... to the routine to PLOT an enlarging character across ...
    Battle Bunny Battle Bunny February 2014 Development
  • Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…

    ... BASIC commands in assembler route and write a PLOT *x,y command ... p10 of The Spectrum Shadow ROM Disassembly for more details of ... *x,y command into a PLOT *x,y command.

    dbolli dbolli August 2014 Sinclair Basic
  • Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…

    ... to do the graphics in assembler, but I want to get ... isn't even a handy ROM routine, as CL_LINE clears from ... number of steps in the PLOT/DRAW calculations; ie. by holding ...
    Battle Bunny Battle Bunny October 2016 Sinclair Basic
  • Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…

    ... 400-409 to use an assembler routine instead, I'm disinclined ... , as the bulk of the PLOT & DRAW time is taken ... to go through the same ROM code either way. I'll ... separate DRAWs. For an X-PLOT between 128 & 255 I ...
    Battle Bunny Battle Bunny January 2017 Sinclair Basic
  • im looking for a horizontal scroll routinehi, im looking for a horizontal scroll routine. i read somewhere that you can do it with at 'to' statement, somewhere in a print routine. althoug…

    ... the ROM functions PLOT & DRAW_LINE are called from the assembler not the ... , illustrating your next task). The assembler could be restored to its ...
    Battle Bunny Battle Bunny June 2017 Sinclair Basic
  • Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…

    ... speed of calling PLOT/DRAW from BASIC and Assembler. The FOR loop ... 00
    call $22DF ; Call PLOT in ROM
    ; ------------------------------------------------------------------------------
    ROM_DRAW: exx ...
    Paddy Coleman Paddy Coleman August 2017 Development
<1234567…34>

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