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<1…14151617181920…34>
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    ... br /> ld (hl),c
    ; ei
    ret

    ;****************************************< ... br />
    pop af
    ei
    reti

    ;****************************************< ... br /> ld r,a
    ei

    ld a ...
    frobush frobush January 2009 Games
  • Speech reproduction on the Speccy - 2009 style?Thanks to Chapter 33 of [url="http://www.worldofspectrum.org/infoseekid.cgi?id=2000388"]Super Charge Your Spectrum[/url] by David Webb - "Speech Repr…

    Funny you should ask that, I did this on Sunday. But using true analogue output. Yes, your rubber keyed friend has a built in DAC. Bet you didn't know that :-) You can squeeze about 6 bits of resolution from it, too.

    See this thread: [url]http ...
    Winston Winston January 2009 Development
  • FatWare source codeHi, Does anyone have the latest FatWare source code for the DivIDE? I've e-mailed Baze about it but got non-delivery notices. The last I heard he'd…

    ... version of original FATWARE (fixed IM2 interrupt and real TAPe support ...
    Tom-Cat Tom-Cat January 2009 Hardware
  • New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…

    ...
    ld (hl),a
    ei
    ld bc,65278 ;read ... /> pop hl ;empty stack
    ei
    ret[/CODE]Next stop ...
    bigjon bigjon January 2009 Development
  • Playing 128k music with z88dk ?Hi, I'm amazed how easy seems to make things with z88dk to build spectrum asm programs. After my first approach I miss some way to play 128k music, s…

    ... . The z88dk provides support for IM2 etc. as well which makes ...
    Winston Winston January 2009 Development
  • MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…

    ... /> S
    ent $

    ei
    halt

    ld ...
    velesoft velesoft February 2009 Development
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... of an opcode following an EI opcode then the Z80 will ...
    Bob Stains Bob Stains February 2009 Games
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... of an opcode following an EI opcode then the Z80 will ...
    psj3809 psj3809 February 2009 Games
  • User reviewsAs often requested (e.g. [URL="http://www.worldofspectrum.org/forums/showthread.php?t=18135"]here[/URL]), user reviews are now possible through the s…

    ... of an opcode following an EI opcode then the Z80 will ...
    Arjun Arjun February 2009 Games
  • Graphic Adventure CreatorI'm probably being thick and it's somewhere on WOS, but does anybody know where I can get hold of the 'quickstart' file for GAC? Sorry if i've poste…

    ... %2Fdocs%2Finfo%2FSuperscape.doc&ei=GgiWSbKMGoiKjAf48fCuCw&usg=AFQjCNHM55RDSdYgwizl565dmiJgsjy3hg& ...
    BloodBaz BloodBaz February 2009 Development
  • DivIDE on Spectrum +3Hi all, Is it possible to use the DivIDE on the Spectrum +3 in 128K mode? I have the 'A' jumper set on the board, but my +3 resets into 48K mode wit…

    ... register I=xx0xxxxx then in IM2 interrupt will kempston mouse return ... form different place in IM2 table. Only if IM2 table will created ...
    velesoft velesoft February 2009 Hardware
  • Batman crashes on MobileZXDear all, I'm one of the authors of MobileZX ([url]https://sourceforge.net/projects/mobilezx/[/url]) and find that Batman crashes within a few secon…

    I'd put money on it using the very standard trick of having your IM2 routine at 0xffff (especially as I know Head over Heels does that).
    Philip Kendall Philip Kendall February 2009 Emulators
  • Batman crashes on MobileZXDear all, I'm one of the authors of MobileZX ([url]https://sourceforge.net/projects/mobilezx/[/url]) and find that Batman crashes within a few secon…

    ... wrap PC around when using IM2 interrupts. A quick test for ...
    Jimmy Jimmy February 2009 Emulators
  • Interrupts - been a while !Not sure if this is the right place for this (1st post on WOS, but been a speccy user since Dec'84 :-o (yes I am that old ! :p) ), But I can't for …

    ... JP
    IM 2
    EI
    [/code]

    I ...
    Philip Kendall Philip Kendall March 2009 Sinclair Miscellaneous
  • Interrupts - been a while !Not sure if this is the right place for this (1st post on WOS, but been a speccy user since Dec'84 :-o (yes I am that old ! :p) ), But I can't for …

    ...
    ld (hl),c
    ei
    ret

    ;****************************************

    pop af
    ei
    reti

    [/code ...
    frobush frobush March 2009 Sinclair Miscellaneous
  • Interrupts - been a while !Not sure if this is the right place for this (1st post on WOS, but been a speccy user since Dec'84 :-o (yes I am that old ! :p) ), But I can't for …

    ...
    ld a,123
    ei
    ret

    ; main ...
    evilpaul evilpaul March 2009 Sinclair Miscellaneous
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…

    ... . If no hardware responds at IM2 int ack time, their drivers ... #ff just prior to the IM2 int ack cycle, the zero ... bit at 0 during an IM2 ack cycle, assuming minimum sink ...
    Alcoholics Anonymous Alcoholics Anonymous March 2009 Hardware
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…

    Thanks. I've started putting some notes on the whole IM2 thing onto a page on the [url=http://scratchpad.wikia.com/wiki/Interrupts]Technical Wiki[/url] if that's of interest to anyone.
    Philip Kendall Philip Kendall March 2009 Hardware
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…

    ... how most Spectrum programmers use IM2.

    All is ... interrupting peripheral that functions in IM2. The TS2068 can fully ... use IM2 if attached IM2 peripherals pull up all ... correct, the AMX mouse uses IM2.

    [QUOTE]Returning ...
    Jimmy Jimmy March 2009 Hardware
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…

    ... interrupt time, thus meaning that IM2 is slightly more fiddly to ... resistors 150 Ohm) for better IM2 vector stability !
    [img]http ... /kmouse-case.jpg[/img]
    IM2 fixed vector table adress (correct ...
    velesoft velesoft March 2009 Hardware
  • New game: Nanako Descends to HellJust a bit over two weeks after their first game, The Mojon Twins strikes again with a new game for Spectrum 128k and Amstrad CPC: [url]http://www.m…

    ... having a copy of the IM2 table AND a three-byte ... relevant memory banks. The new IM2 lib in z88dk 1.8 ... more details about setting up IM2 mode than the splib2 implementation ... and how to create an IM2 table using memset().

    Alcoholics Anonymous Alcoholics Anonymous March 2009 Games
  • New game: Nanako Descends to HellJust a bit over two weeks after their first game, The Mojon Twins strikes again with a new game for Spectrum 128k and Amstrad CPC: [url]http://www.m…

    [QUOTE=na_th_an;343839]

    call SetRAMBank
    [/QUOTE]

    Verify SetRAMBank doesn't execute EI (no idea about that C compiler, only looking your coding example)
    gandulf gandulf March 2009 Games
  • WoS RSS feedI've made an unofficial RSS feed for this 'ere site. Get all the "What's New?" news to your feed aggregator. Here it is, here: [url]http://feed43.c…

    here is my flavour, I tried to parse every entry, and tried to associate a proper link for every entry.

    If an entry does not have any link in it, it directs user to infoseek. if it has multiple links, it simply direct user to the last one in ...
    Arda Arda May 2009 Sinclair Miscellaneous
  • Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…

    ... ; draw the block

    ei
    ret

    drawblock ...
    robpearmain robpearmain May 2009 Development
  • Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…

    ... 're running in IM1 (use IM2 as the ROM routine takes ...
    Matt_B Matt_B May 2009 New game ideas
  • Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…

    ... write renderer, hang it on im2 and write game which runs ...
    Fikee Fikee May 2009 New game ideas
<1…14151617181920…34>

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