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<1…28293031323334>
  • running this game in zxspin assemblerHello all I've written this game out in the zxpin assembler. [url]http://chuntey.wordpress.com/2010/01/12/tutorial-zx-spectrum-machine-code-game-30-m…

    ... is* (the 'notebook' of memory address that are CALLed and RETurned ... org instruction is the start address of where the assembler dumps the ... memory for it), the address you RANDOMIZE is where you ... pointer moves down from this address (and not overwriting your ...
    R-Tape R-Tape May 2013 Development
  • A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…

    ... TimexSinclair/Computers by changing the address of the ports used?
    Black_Cat Black_Cat June 2013 Announcements
  • A new site for an old projectThe 'Interface 1bis' project site has been moved to: [url]https://sites.google.com/site/interface1bis/[/url] In fact, it's not only a simple relocati…

    ... TimexSinclair/Computers by changing the address of the ports used?[/QUOTE]
    of ever selling an interface to ...
    Dan Antohi Dan Antohi June 2013 Announcements
  • inline z80 with sdccI cant get it to work at all: #include <string.h> char test[10]; void main(void) { strcpy(test,"testing"); _asm ld a,32 _endasm; } this produc…

    ... memory address of a single byte, an int* is a memory address of a ... a long* is a memory address of a four byte integer (on ... ++ -- adds two to the memory address p. Incrementing a char* -- p ... ++ -- adds one to the memory address p. Incrementing a void* -- p ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…

    ... the left).

    Get address of character cell to reduce bar ... it back to the screen address
    Reduce some more? go ... />
    repeat for each row of the character cell to reduce.
    Paradigm Shifter Paradigm Shifter July 2013 Development
  • Trigonometric find angleHi guys, anyone knows a formula to calculate an angle between two coordinates, using basic?s function ATN , recent programming tools have ATAN2(dy,dx…

    ... /> vToPlayer = normalise(vToPlayer) // make length of vector 1 by dividing by ... with a v in front of variable name are vectors)

    Paradigm Shifter Paradigm Shifter July 2013 Development
  • Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…

    ... Personally, I think "one version of the ROM does . The ... paged
    003C dw maximum address used by snapshot
    ... a single byte
    dw address of byte
    dw uncompressed ... Memory from 602Ah to the address given in the first block ...
    John Elliott John Elliott July 2013 Emulators
  • New game: Escape from CnossusHot on the heels of Spectral Dungeons, I give you a new roguelike, this time with graphics and more complex gameplay. [IMG]http://notimetoplay.org/w…

    ... use a table holding the address of each UDG.
    [CODE]dim ...
    LCD LCD July 2013 Brand new software
  • 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…

    ... file in at the memory address of your choosing.

    I ... 's a really rough infodump of my workflow; I'll gladly ...
    stephenw32768 stephenw32768 July 2013 Development
  • How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …

    ... should already know the end address of the code you want to ... for c64, in the sense of you char packed the 2nd ... part of whatever to get it smaller ... on to the first part of the code at the end ... over writing the first bit of code (say an intro or ...
    fog fog August 2013 Development
  • How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …

    ... INC $0404 // instead of getting $4000.. get $4100 ... INC $0407 // instead of storing at $0801.. ... // the execute address of 2nd part that is ...
    fog fog August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... by the
    ;; processing outside of .read_edge)

    ;; the values ... /> ;; C: during searching, the number of pilot pulses found
    ;; so ... being read
    ;; IX:target address of next byte to load.
    stephenw32768 stephenw32768 August 2013 Development
  • Snapsshot URLHow do I create a Snapshot URL for saving and loading game positions, so that I can play it later.

    ... .

    URL is an address of something in Internet like [url ...
    Ralf Ralf August 2013 Games
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... /> ;; C: during searching, the number of pilot pulses found
    ;; so ... /> ;; HL:during search/sync, the address of the timing
    ;; constant used ... s counter
    ;; IX:target address of next byte to load.
    stephenw32768 stephenw32768 August 2013 Development
  • RND cyclical behaviourGood evening. I'm playing with RND function to show its cyclical behaviour, i.e. after 65536 calls to it, the next one will return the same value of …

    Here's a bit of assembler to do the same ... a duplicate point) until all of the upper screen is black ... (short string)
    defw $023F ;address of "RND" code in key table ...
    Battle Bunny Battle Bunny August 2013 Sinclair Basic
  • Bug in Super Wonder Boy in Monsterland?Hello!:smile: This game seems to have a bug that prevents finalize. The dragon that is in the last level, it is impossible to kill.Remains static.No…

    ... A
    - an address in the state table is ... - at this address we have another address - of action code for the ... . The values at this address are 38380 (236,149). ... At this address is RET which ends any ... 29140] and finds its address on list at 31305+nr ...
    Ralf Ralf August 2013 Games
  • Bug in Super Wonder Boy in Monsterland?Hello!:smile: This game seems to have a bug that prevents finalize. The dragon that is in the last level, it is impossible to kill.Remains static.No…

    ... A
    - an address in the state table is ... - at this address we have another address - of action code for the ... . The values at this address are 38380 (236,149). ... At this address is RET which ends any ... 29140] and finds its address on list at 31305+nr ...
    jp jp August 2013 Games
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... /> ;; C: during searching, the number of pilot pulses found
    ;; so ... /> ;; HL:during search/sync, the address of the timing
    ;; constant used ... s counter
    ;; IX:target address of next byte to load.
    stephenw32768 stephenw32768 August 2013 Development
  • Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…

    ... jump ld ix,rptaddr DD21XXXX;Address of rpt jump
    ld b ... ,#XX 06XX ;Hi Byte of Lookup table
    Scr_add ld ...
    jamorski jamorski August 2013 Development
  • Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…

    ... jump ld ix,rptaddr DD21XXXX;Address of rpt jump
    ld b ... ,#XX 06XX ;Hi Byte of Lookup table
    Scr_add ld ...
    jamorski jamorski August 2013 Development
  • melbourne drawIt could be said I am easly pleased,:grin: Very nice peice of software. I was realy impressed by its ease of use. I think a lot of time and effort w…

    ... then sets HL to the address of the data ($cc43 in ... by setting ORG to that address and assembling it, but ... ). (Note that the SAVE address in the parameter table is ... as T_ADDR holds the address of the next item it ... would lose the RET address.) That would give you ...
    Battle Bunny Battle Bunny August 2013 Development
  • What (Speccy) game are you currently playing ?(Quite a few threads on what youre listening to, watching etc) What Speccy game are you currently playing ? After playing a LOT of Invasion of the …

    ... ago, when they ran out of copies to give to companies ... .

    They assumed many of the companies would have machines ... bit tbh.. but the coder of it , did other better things ... is they have the area address of microprose as opposed to new ...
    fog fog September 2013 Games
  • The complete Knight Tyme (48k) RAM disassemblyHello! Just a quick note to let everyone know that the initial version of my [URL="http://www.dur.ac.uk/philip.anderson/disassemblies/knight-tyme-48…

    ... /> 1. Grab an RZX recording of Finders Keepers from the [url ... SkoolKit along with a snapshot of Finders Keepers:
    [code]sna2skool ... ]
    or into a bunch of HTML files thus:
    [code ... and I'd change the address of a call in there when ...
    David Jones David Jones September 2013 Announcements
  • Couple of basic BASIC questionsPlaying around with BASin again in an effort to knock up a game and am wondering 2 things 1) Why when I run the program do my UDGs not always pick u…

    ... />
    USR "b" returns the address of the UDG "b". You then ... POKE that address (plus an offset for each ... to 7) with the value of the line - your BIN section ... it prints "60". So instead of BIN 00111100, you can just ...
    Dunny Dunny September 2013 Sinclair Basic
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... , then load IY with the address of the routine holding the next ... chunk of work, then jump back into ... remember to restore the value of shadow HL (and IY, come ...
    stephenw32768 stephenw32768 September 2013 Development
  • 128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…

    ... already. 23552 is the address of the first of the original 48K system ...
    stephenw32768 stephenw32768 September 2013 Development
  • 128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…

    ... /> ld (hl),0x3e ; place end-of-stack mark at RAMTOP
    ld hl,0x1303 ; stack the address of the ROM error handler
    stephenw32768 stephenw32768 September 2013 Development
  • Break into programIs there any way of stopping people using the break option in my software productions so they can list the code.

    ... by ERR_SP (23613) with the address of the routine; or with with ... /4 and POKE that address with the address of the error return routine ... . Save the original address then POKE ...
    Battle Bunny Battle Bunny September 2013 Sinclair Basic
  • Asm routine for AY playback?Hi, is possible to create and "name" an asm routine for playing some ay data? If yes, how? Example: Ok , I've finished a sound tracker song, now I n…

    ... /vodkemon/stc_player.txt]this disassembly of the Soundtracker player[/url] useful ... correspond to the 'start address' and 'start address + 6').

    Alternatively ... stc_init (NOT stc_init_entry) with the address of the .stc data in HL ...
    gasman gasman September 2013 Development
<1…28293031323334>

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