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  • How to test Z80 Code?Hi All, Is there a way to test a block of z80 code (nothing speccy specific in it) with many different inputs? The reason I ask is that I'm writing…

    ... a headerless data block in assembler on the Spectrum is quite ... s the size of the output file? Can you hold ... of input data & output data in RAM at the ... can dispense with any screen output then you've got ... you can just LDIR the output block to the input ...
    Battle Bunny Battle Bunny May 2013 Development
  • CODE SCREEN$ in MCIs there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in bas…

    ... to the ROM routine (PASMO assembler):

    [code]S_SCRNS_BC equ ... /> ; C=row (0-23)
    ;Output: A=ASCII code of character ...
    mcleod_ideafix mcleod_ideafix June 2013 Development
  • Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…

    ... you couldn't get an assembler so had to do all ... out ?15 - ?20 for an assembler was pricey and the only ... save it to the tape output and load it on the ...
    joefish joefish July 2013 Development
  • Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…

    I've done an assembler version now. I ... Andre Adrian for the original assembler version
    ; 981 ... 1399 RETURN
    ; - - - - -

    OUTPUT: call $16bf ;SET_WORK reset WORKSP ...
    ;becomes the output from the function instead of ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • Starting with assemblyHi Guys, I am looking forward to following this guide [url]http://chuntey.wordpress.com/2010/01/12/tutorial-zx-spectrum-machine-code-game-30-minutes…

    ... .TAP file around the binary output of an ordinary cross-compiler ... /> Also, PASMO is my Linux assembler of choice as well. And ...
    utz utz August 2013 Development
  • Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…

    ... it into 175 bytes of assembler after all. Removing the [color ... this string
    ;becomes the output from the function instead of ...
    Battle Bunny Battle Bunny August 2013 Sinclair Basic
  • Code execution logging/profilingAs revealed in [url="http://www.worldofspectrum.org/forums/showthread.php?t=41666"]this thread[/url], I'm adding support for reading code execution l…

    ... , which gives this sort of output.
    The second column is ... />
    I thought that an assembler version would sort out the ...
    Battle Bunny Battle Bunny August 2013 Emulators
  • Didaktik Gama and M manualsI?m looking for manuals for the Czech Spectrum clones Didaktik Gama and M. Thought this would be an easy task, but I couldn?t find any user or servic…

    ... of paging port than in assembler.

    And parallel port ... 8bit gates can be in output mode used for connection 3 ...
    velesoft velesoft August 2013 Hardware
  • 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…

    ... I tried to type in assembler opcodes from a book in ... that I needed a separate assembler program to do that or ... and the day I discovered Zeus in a dodgy tape "borrowed ...
    Arjun Arjun August 2013 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…

    ... I tried to type in assembler opcodes from a book in ... that I needed a separate assembler program to do that or ... and the day I discovered Zeus in a dodgy tape "borrowed ... convinced me that machine code/assembler programs were "magic" and my ...
    wibble wibble August 2013 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…

    ... weird design choice to input/output in decimal and not hex ... to PASMO or another cross assembler.

    Whats putting me ... load the code on another assembler.

    The examples I ...
    wibble wibble September 2013 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…

    ... design choice to input/output in decimal and not ... QUOTE]

    Any assembler which allows you to define ... load the code on another assembler.[/QUOTE]

    Yeah ... with emulators here? An assembler converts human-readable assembly instructions ...
    u6c87 u6c87 September 2013 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…

    ... coded for sdas (including sdcc output) will still cause you problems ... to you as an alternative assembler).

    Is "ld a ... entertaining path of learning without assembler / compiler discussions getting in the ...
    u6c87 u6c87 September 2013 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…

    ... -create-app

    The output is test.tap that will ... the syntax for the underlying assembler. The asm code is inside ...
    Alcoholics Anonymous Alcoholics Anonymous September 2013 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…

    ... -create-app

    The output is test.tap that will ... the syntax for the underlying assembler. The asm code is inside ...
    guesser guesser September 2013 Development
  • Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…

    ... get hisoft dev kit or zeus but your talking 14-15 ... itself has a great inbuilt assembler from basic.. makes you wonder ...
    fog fog September 2013 Sinclair Miscellaneous
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... perhaps the SAM Coupe JAM Assembler may be useful


    a pc version of zeus[/QUOTE]

    Would be ...
    DavidB DavidB September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    [QUOTE=kphair;722304]Zeus works great, even on 64-bit: [URL="http://www.desdes.com/products/oldfiles/"]http://www.desdes.com/products/oldfiles/[/URL][/QUOTE]

    Yup, I agree.

    Zeus is an excellent Assembler, IMHO.
    spectrumlinux spectrumlinux September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... to this thread... I wrote Zeus, for my sins.
    ... Amusingly the PC version of Zeus only exists because of a ... spending a few hours writing Zeus and that was a ... if you intend to use Zeus I'd suggest having ... sources on my website, Zeus does a large number of ...
    kickaha kickaha September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... my opinions? Write your own assembler - it's fun)
    Indeed ... original binary. But I like Zeus so I might not actually ...
    David Jones David Jones September 2013 Development
  • Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…

    ... />
    and
    Thread:Z80 Assembler for Win7 PC (64-bit ... I asked about a decent assembler that would work on a ... was the first to suggest Zeus from DesDes, written by Simon ... own disassembler and reassembling via Zeus and I get a 100 ...
    polomint polomint September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... />
    I was considering putting Zeus-syntax z80 into BASin and ... .[/QUOTE]

    Zeus did/does extend normal assembler syntax in a ... 's, not any extension of Zeus... that's what made the ...
    kickaha kickaha September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... template for new projects with Zeus. I build the binaries on ... "FILENAME"CODE'.

    [CODE]; output a TAP file
    ; create ... equ .
    [/CODE]

    Zeus is brilliant, you can do ...
    kphair kphair September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... template for new projects with Zeus. I build the binaries on ... "FILENAME"CODE'.

    [CODE]; output a TAP file
    ; create ... equ .
    [/CODE]

    Zeus is brilliant, you can do ... looks useful. I'm using Zeus for Finders Keepers+. (I've ...
    David Jones David Jones September 2013 Development
  • Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…

    ... an attempt at an emulator, assembler, hex viewer, graphic viewer etc ... the emulator and assembler as Zeus is a fine assembler and when I ...
    David Jones David Jones October 2013 Development
  • Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …

    ... lower impedance, to match the output of the audio signal source ... ), A
    ...

    My assembler skills are poor. But I ...
    Dan Antohi Dan Antohi October 2013 Hardware
  • IF EXIST?In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not. There are any way to check it out from BA…

    [QUOTE=Zup;730789]In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not.

    There are any way to check it out from BASIC (without breaking the program if it does not exist)?[/QUOTE]

    ...
    The_Bert The_Bert October 2013 Sinclair Basic
  • Cross platform developmentI'm just vaguely considering supporting a few more retro 8 bit platforms for something I have in mind to do. Just Z80 and 6502 really, but that cove…

    ... />
    Looking at the ASM output for the compiler is probably ... driver that was entirely x86 assembler and I had never coded ... in C, looked at the output and compared it to the ...
    Paradigm Shifter Paradigm Shifter November 2013 Development
  • Cross platform developmentI'm just vaguely considering supporting a few more retro 8 bit platforms for something I have in mind to do. Just Z80 and 6502 really, but that cove…

    ... it will spit out an assembler listing for each platform.
    output but you can use the ... is exactly how a modern assembler works, so sorry if I ... for is determined on the assembler command line by specifying which ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
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