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  • WIP: Another demoIt's a couple of months already since I've released something, so I thought it's fun to show a demo of the thing I'm currently working on: [url]http…

    ... but it can also compile assembler code. That means that ... plug in any sprite routine library if I want ... it's in C or assembler.

    The ... a little slower than straight assembler code.

    I ... or using another sprite routine as it takes a ...
    Timmy Timmy July 2010 Development
  • Developing on Linux (Ubuntu 10.04)Ok, so I decided to install Ubuntu as my main OS, but keep XP as a bootable partition just in case I err mess up Ubuntu, :) I also have XP VM in Virt…

    ... is, aside from a cross-assembler, I tend to do most ... PT3 format and the playback routine are both a bit bloated ...
    chev chev August 2010 Development
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... this with an interrupt-driven routine. If I make sure it ... , and decompress it in the pause between levels.
    ajmoss ajmoss August 2010 Hardware
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... " to implementing these functions in Assembler. Then I had a brain ... so, then to use this routine is it simply a case ... tried the above in ZXSpin Assembler but I got an error ...
    Paddy Coleman Paddy Coleman August 2010 Sinclair Basic
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... 16-bit/16-bit unsigned routine but found that the SLIA ... is not recognised by the Assembler in ZX Spin.

    Paddy Coleman Paddy Coleman August 2010 Sinclair Basic
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... 16-bit/16-bit unsigned routine but found that the SLIA ... is not recognised by the Assembler in ZX Spin.

    Dr BEEP Dr BEEP August 2010 Sinclair Basic
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... 16-bit/16-bit unsigned routine but found that the SLIA ... is not recognised by the Assembler in ZX Spin.

    rich_chandler rich_chandler August 2010 Sinclair Basic
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... 16-bit/16-bit unsigned routine but found that the SLIA ... is not recognised by the Assembler in ZX Spin.[/QUOTE]
    Matt_B Matt_B August 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... code double height character printing routine. I know this has been ... />
    Initially I wrote the routine in Sinclair BASIC to ensure ... manipulate the memory etc. The routine works well but is rather ... 1: INK 7: BRIGHT 1: PAUSE 1: CLS
    110 LET ...
    Paddy Coleman Paddy Coleman August 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... code double height character printing routine. I know this has been ... />
    Initially I wrote the routine in Sinclair BASIC to ensure ... manipulate the memory etc. The routine works well but is rather ... 1: INK 7: BRIGHT 1: PAUSE 1: CLS
    110 LET ...
    Dr BEEP Dr BEEP August 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... 0: INK 7: BRIGHT 0: PAUSE 1: CLS
    110 LET ...
    Paddy Coleman Paddy Coleman September 2010 Sinclair Basic
  • updated Fatware - keyboard patchHi! I work with Fatware code and already prepare keyboard patch for original version 0.12. Now it's possible to operate disk browser with keys: 1) c…

    ... - stop
    C - set/unset pause
    V - play

    velesoft velesoft September 2010 Development
  • How do you work with fonts on speccy?just curious really.. I know c64 workings, and obv. the spec you draw direct to screen.. on 64 , you'd make what would be equivalent to UDG.. and sa…

    ... to work with Basic or assembler.

    In Basic there ... letters you must switch to assembler.

    Spectrum unlike other ... - you must create a copying routine in asm.
    Ralf Ralf September 2010 Development
  • Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…

    ... like you have a powerful routine there.

    I have ... [/B].
    [*]Added a little routine that prints out the first ...
    Paddy Coleman Paddy Coleman September 2010 Sinclair Basic
  • Looking for cursor routineIt's been a long time since I programmed a little bit in Basic, so I decided to create a simple cursor routine: [url]http://db.tt/SPnSdpx[/url] I k…

    ... Designer probably has a cursor routine in it - which it does ... has a m/c cursor routine, but it uses interrupts, whereas ... over two years and the assembler listing is 130kb. Pretty much ... cascade of corrections. The cursor routine is covered in part 2 ...
    Battle Bunny Battle Bunny September 2010 Sinclair Miscellaneous
  • logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…

    ... RST #28 calculator you need assembler. Why would you wnt to ... it's using the SCANNING routine.

    I made something ...
    mcleod_ideafix mcleod_ideafix September 2010 Development
  • logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…

    Thanks for that routine; it should come in handy. ... me that there was a routine in the ROM to evaluate ... to write a bit of assembler, but I was thinking of ... evaluate complex logical expressions in assembler and thought that it might ...
    Battle Bunny Battle Bunny September 2010 Development
  • Help! Reverse engineering a Spectrum game[deleted]

    ... />
    You only need one routine to plot single pixels (starfrields ... you feel like. The Vsync routine may do other activities such ... for changing screens, game over, pause, frontend presentation and so on ...
    ASM ASM October 2010 Development
  • Brand new Horace GameWe could think on how should the next Horace Game be, taking in account that the past three are mixtures of old, well established classic arcade game…

    ... TZX mostly is used for assembler/machine code loaders that don ... that TAP versions could have PAUSE 200 to display the screens ...
    Mister Beep Mister Beep October 2010 New game ideas
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... / 2 = alive / 4 = dying / 8 = pause off screen / 16 = map priority ... :

    Calls a specific routine using the control field to ...
    ASM ASM October 2010 Development
  • General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …

    ... *---------------------*
    9005 REM PSS-XINPUT Routine
    9010 REM Parameters:
    PAUSE 2:
    LET I(6 ...
    Paddy Coleman Paddy Coleman October 2010 Sinclair Basic
  • Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …

    ... game was a fillscreen graphics routine using LDIR.[/QUOTE]

    I discovered the superb Zeus assembler much later on a "borrowed ... " tape (Zeus assembler and such utilities to aid ...
    Arjun Arjun October 2010 Sinclair Miscellaneous
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... I have to call the routine I'm testing several thousand ... be programming generic code in assembler on high end Intel/AMD ...
    ASM ASM October 2010 Development
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... and DSP code directly into assembler so I can't see ... player crashing when I press pause 2% of the time...
    assembler - I believe it is tokanised ... write a modern game in assembler but then me and modern ...
    ASM ASM October 2010 Development
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... only get away with using assembler for everything as I have ... instructions were added to the routine and that is the problem ...
    ASM ASM November 2010 Development
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