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<1…21222324252627…34>
  • BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…

    ... " and z88dk

    * This program can be compiled as follows ...
    int f, g; // generic counter
    int frames;
    int ...
    Einar Saukas Einar Saukas August 2012 Development
  • Vertical Shoot'em Up's: Humans.Ok. This topic is about those vertical shoot'em up's in which you control a human. Why? Because I say so. It's just a nitpicking categorization. And…

    ... ), although it's really a multi-directional affair.

    The ... [/B] (Image Works, 1988) althoug multi-directional, i think
    [B ... /> [B]Cow Boy Kidz[/B] (Byte Back, 1989)
    [B]Outlaw ...
    WhenIWasCruel WhenIWasCruel August 2012 Games
  • BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…

    ... " and z88dk

    * This program can be compiled as follows ... " coordinates
    int f; // generic counter
    int h, i; // temporary ...
    Einar Saukas Einar Saukas September 2012 Development
  • A Miscellany of Dangerous TipsHere's a selection of ideas for using some of the more obscure system variables which I've found handy on occasion. They can be very convenient if us…

    ... such as data or program variables) between the end ... 't overwrite the first byte[/b] (the initial ... the address of the byte preceding that line number, ... from elsewhere in the program. Additionally, DATADD can ... by resetting the hi-byte of DEFADD on return ...
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • ZX-Preview 2.1 publishedDear friends and ZX-Speccy fans! Today I've released a new version of ZX-Preview. I completed the to-do-list for the program and added the following…

    ... to-do-list for the program and added the following features ... the debug view or the byte view into the clipboard - can ...
    clausjahn clausjahn October 2012 Emulators
  • Optimisations in Exomizer Z80 decrunch codeThis is the 163 bytes old code (simple and optimized): [CODE] ld iy, exo_mapbasebits ld a, 128 ld b, 52 push de exo…

    ... 's used by Amstrad CPC interrupt routine. Also there is a ... have made) is only 1 byte of size improvement:
    [CODE ...
    antoniovillena antoniovillena November 2012 Development
  • Ticks, the first command line Z80 emulatorThe project page is in Spanish: [url]http://retrolandia.net/foro/showthread.php?tid=43[/url] So I will expain a little. Ticks is an emulator that …

    ... a binary file between 1 byte and 65536 bytes, load it ... a new call to the program. Also the SNA format (input ... available. You can use this program for count the tstates in ...
    antoniovillena antoniovillena November 2012 Development
  • Odd files on disk games (Op.Wolf, Typhoon, etc.)I've noticed on some disk games which I've been looking at recently that the loading sequence starts by loading two 512 byte files and comparing them…

    ... 512 byte files and comparing them. If they're identical the program ... by loading $23 into every byte (but two) of RAM and ... them is that the last byte is $03 in one file ...
    Battle Bunny Battle Bunny December 2012 Games
  • Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …

    ... options to break on interrupt and re-triggered interrupt.
    * Made the ... !
    - Fixed a problem in Program Finder where it would frequently ...
    Arjun Arjun January 2013 Emulators
  • Gerber files and CAD programWhich CAD pcb program can import Gerber files? Micky

    Which CAD pcb program can import Gerber files?


    Micky
    -Micky -Micky January 2013 Sinclair Miscellaneous
  • need some help with a small programHi you all, maybe someone can quickly help me on this small program, I just did a really small program for a presentation, I want the letters to ch…

    ... help me on this small program, I just did a really ... small program for a presentation, I want ... working as planned.

    program i wrote like this, workes ...
    lomax030 lomax030 January 2013 Sinclair Basic
  • Checksum routine wantedI wish to make a program that verify integrity of a Multiface 1 ROM. It is possible to compare each byte of the ROM against a binary dump, but this i…

    I wish to make a program that verify integrity of a ... is possible to compare each byte of the ROM against a ... distributing ROM image along the program).

    Thus, I need ...
    TK90XFan TK90XFan February 2013 Development
  • SAVE writing zeros after program?Hi there! I hope this is the right forum, but I didn't find any other more appropriate... I'm trying to recover some very old tapes with stuff I mad…

    ... contents of memory after the program itself. When I load that ...
    gabrielg gabrielg February 2013 Sinclair Basic
  • Strange behavior of program compiled with HiSoft BASICA while ago I experimented with HiSoft BASIC 128 (1.2) and compiled [URL="http://www.worldofspectrum.org/forums/showpost.php?p=683349&postcount=140"]…

    ... of the BASIC loading/calling program several times before running properly ...
    Alessandro Grussu Alessandro Grussu March 2013 Development
  • Spectranet firmware update: TAP file loading fixArchie Robins discovered a problem whereby interrups were being erroneously enabled on the return from a tape trap (that is, when TAP files are being…

    ... called by a machine code program.

    The Spectranet was ... always executed, hence if a program that's loading blocks has ... be overwritten if a ULA interrupt occurs. This is usually bad ...
    Winston Winston March 2013 Hardware
  • New game: Funky FungusHappy Easter folks! What's better to do during these Spring holidays than playing some new game on our Spectrums? ;-) And lo, here is... [center] [y…

    ... part. This is the first multi-level title designed with AGD ... is in fact a single program made with that tool.
    It is also the first program to make full use of ... -tuning of the BASIC housekeeping program and to final gameplay testing ...
    Alessandro Grussu Alessandro Grussu March 2013 Brand new software
  • SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…

    ... SPECTRA interface, it is a multi-purpose interface for the 16K ... />
    The first brand new program written explicitly to control the ... wonderful colour patterns. The program can also be run on ... Converter utility and the Snake program are also available for ...
    Fruitcake Fruitcake April 2013 Hardware
  • Saving a file and removing the title (Program:)I remember when saving a program how I could construct a string such as: 10 let a$=chr$ 8+ chr$ 8+"name" 20 save a$ In order to remove the "Program…

    I remember when saving a program how I could construct a ... /> In order to remove the "Program:" title to display a different ...
    daveysludge daveysludge April 2013 Sinclair Basic
  • AY capabilities in a new ZX programHi. Finally in a ZX Spectrum version - "ASTRAL COMBAT". Download: [url]http://hooyprogram.republika.pl/astral_combat.zip[/url] it's a 3-parts mus…

    ... /> All music by YERZMYEY/HOOY-PROGRAM
    Code by SHIRU.
    Yerzmyey Yerzmyey April 2013 Brand new software
  • "Chronos": how fast should it really be?I was reading [URL="http://timfollin.pwp.blueyonder.co.uk/Archive.htm"]Tim Follin's webpage[/URL] the other day and came across a curious remark abou…

    ... game was released that the program was running at half speed ... not synchronised to the frame interrupt, so it runs at approximately ...
    introspec introspec May 2013 Development
  • Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …

    ... .
    - The last byte of the data block is ... are only possible within the program - except for the 768B ... ) of data
    - read byte
    - if $ff, we ... to point to the next byte after that row
    ... found
    - replace first byte of row with $fe
    utz utz May 2013 Development
  • Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…

    ... going to change. If normal interrupt code is to run, then ... any hardware.

    The byte output will be interpreted as ...
    Ralf Ralf June 2013 Emulators
  • Problems using Save"program" Line 10 in real +2A!!I typed a loader for a program and when I use the typical Save"program" line 10, the Spectrum just gives me "0 ok, 0:1" What can it be???? I dont w…

    I typed a loader for a program and when I use the typical Save"program" line 10, the Spectrum just gives me "0 ok, 0:1"

    What can it be???? I dont want to type again the loader! So it someones knows how to fix that :)

    Thanks!
    Ivanzx Ivanzx June 2013 Sinclair Miscellaneous
  • Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…

    ... quoted once more. Scope, Universal Counter, DMM... but, unfortunately, no logic ... bytes. This means that one byte is sent/received from/to ...
    Falco-F8L Falco-F8L June 2013 Hardware
  • display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…

    ... done a little screen slicing program in both assembler:
    [url ... bit easier to understand the program structure with the BASIC version ... posted here uses fixed 32 byte blocks so the slice can ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • 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…

    ... , that's done by the program), but because of the way ... LD B,33 ; INITIALIZE LOOP COUNTER
    1080 GO TO 1300 ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…

    ... B]#38[/B] (im 1 interrupt routine)
    [B]#66[/B ... read this instruction byte), after reading this byte is automatically ... . CPU read first instruction byte from external memory, disconnect ... read this instruction byte), after reading this byte is automatically ...
    velesoft velesoft August 2013 Hardware
  • Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…

    ... (0xFE) with the high byte of the port number specifying ... /> Address 0x84C2 contains the three-byte instruction LD BC,0xF7FE, preparing ... are unpaused
    ei ; restore interrupt handler
    jr .return_to_game[/CODE ...
    stephenw32768 stephenw32768 August 2013 Games
  • 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…

    ... fliph2 LD A,(HL) ; grab byte
    EX AF,AF' ... IX+0),A ; poke flipped byte
    EX AF,AF' ... (HL),A ; poke flipped byte
    ADD HL,DE ADD ... to copy paste into your program.


    ...
    MatGubbins MatGubbins August 2013 Development
<1…21222324252627…34>

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