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<1…17181920212223…34>
  • Has this been done before?Are there any emulators whose speed can be adjusted by the Spectrum program that the emulator itself is running? So that, say the Spectrum program ca…

    ... : trap caller must load into IX an address of string "emulator ...
    ewgf ewgf April 2006 Emulators
  • .TRD files?Can anyone point me in the direction of a specification for the .TRD file format? Cheers, MikeW

    [QUOTE=gasman][url]http://www.ramsoft.bbk. ... the face...

    [QUOTE=gasman](IIRC, a .TRD file is ...
    MikeW MikeW April 2006 Emulators
  • Has this been done before?Are there any emulators whose speed can be adjusted by the Spectrum program that the emulator itself is running? So that, say the Spectrum program ca…

    ... : trap caller must load into IX an address of string "emulator ... you'll need ED00; LD IX,nnnn inserted.

    How ...
    Dunny Dunny April 2006 Emulators
  • Has this been done before?Are there any emulators whose speed can be adjusted by the Spectrum program that the emulator itself is running? So that, say the Spectrum program ca…

    ... ,A
    @1:
    PUSH IX
    CALL @ChangeSpeed
    DEFB ... traps"
    @ChangeSpeed:
    POP IX : DEFB #ED,#FE
    LD ... (RestoreSpeed+1),HL
    POP IX : RET
    -------------------- 37 bytes for ...
    Vladimir Kladov Vladimir Kladov April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... from the high byte of IX/IY before adding the offset ...
    Fraser Fraser April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... from the high byte of IX/IY before adding the offset ... , that bits are taken from IX/IY AFTER adding the offset ... checked something like "INC(IX+1)" where IX=FFFF? does that gave ...
    boo_boo boo_boo April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    I mainly tried index values and IX values that caused a change to bits 11 and 13 of IX.
    Fraser Fraser April 2006 Emulators
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... tried index values and IX values that caused a ... ]RLC (IX+1), IX=FFFE 11
    RLC (IX+1), IX=FFFF 00 ...
    BIT 0,(IX ... +1), IX=FFFE ... 11
    BIT 0,(IX+1), IX= ...
    boo_boo boo_boo April 2006 Emulators
  • Legal Sinclair clones?Are any of the cloned Sinclair computers legal, other than the original Timex machines? Are the QL Clones legal? Could a legal clone be produced with…

    [QUOTE=aowen]Having said that Gasman has a project for a ...
    gasman gasman April 2006 Sinclair Miscellaneous
  • Legal Sinclair clones?Are any of the cloned Sinclair computers legal, other than the original Timex machines? Are the QL Clones legal? Could a legal clone be produced with…

    [QUOTE=gasman]I was trying to figure out if Fuse's tape traps actually work with custom ROMs[/QUOTE]

    They don't. They're just direct hooks into a specific opcodes being executed at specific locations.
    Philip Kendall Philip Kendall April 2006 Sinclair Miscellaneous
  • Looking for MacOS X codersHi all Macintosh coders! James Weatherley is quite busy lately, and I need someone who can compile the MacOS X binary of SevenuP v1.20 to make the …

    [QUOTE=aowen]Gasman or FredM might be able ...
    Metalbrain Metalbrain April 2006 Development
  • Basic or Machine code?Hopefully the correct area of the site to post this question. Anyways, I have got hold of several books on programming my spectrum, and I was wonderi…

    [QUOTE=gasman]Not a Basic editor itself, ...
    48K 48K April 2006 Development
  • Games with rippling water effectI have seen this effect of animated water in one or two games and want to try something similiar but can't remember which games. Can anyone suggest s…

    ... , goes by the name of "Gasman" on this forum) which has ...
    Dunny Dunny April 2006 Games
  • Games with rippling water effectI have seen this effect of animated water in one or two games and want to try something similiar but can't remember which games. Can anyone suggest s…

    Just watched Losing Victoria. The ripple effect is really impressive. Well done Gasman. :)

    Is it a true story I wonder? :)

    Necros.

    T-23
    Ian Hamilton Ian Hamilton April 2006 Games
  • Games with rippling water effectI have seen this effect of animated water in one or two games and want to try something similiar but can't remember which games. Can anyone suggest s…

    ... is really impressive. Well done Gasman. :)
    [/QUOTE]
    Cheers!
    gasman gasman April 2006 Games
  • Longshot?Might seem like a daft question, but has anyone got any examples of handling TZX files with Perl?

    [QUOTE=gasman]Is Ruby close enough? :)
    [ ...
    jp jp April 2006 Development
  • Basic or Machine code?Hopefully the correct area of the site to post this question. Anyways, I have got hold of several books on programming my spectrum, and I was wonderi…

    [QUOTE=gasman](Normally you'd put the ...
    icabod icabod April 2006 Development
  • Basic or Machine code?Hopefully the correct area of the site to post this question. Anyways, I have got hold of several books on programming my spectrum, and I was wonderi…

    Thanks Arjun and Gasman.

    Followup: So, I ...
    48K 48K April 2006 Development
  • Wanted: Game Ideas!Ok then here goes nothing. I'm a reasonably good programmer, but I'm really no good at coming up with game ideas and graphics. So if any of you have…

    [QUOTE=Kiwi]
    BUT WE NEED A MUSICIAN!!! PLEASE!!!!
    Even if its AY (128K) only!!![/QUOTE]

    Gasman (Matthew Wescott) is the man you need to speak to for music.
    Swainy Swainy April 2006 Development
  • Looking for MacOS X codersHi all Macintosh coders! James Weatherley is quite busy lately, and I need someone who can compile the MacOS X binary of SevenuP v1.20 to make the …

    [QUOTE=gasman]I'm afraid it's ...
    Metalbrain Metalbrain April 2006 Development
  • Looking for MacOS X codersHi all Macintosh coders! James Weatherley is quite busy lately, and I need someone who can compile the MacOS X binary of SevenuP v1.20 to make the …

    [QUOTE=gasman]I'm afraid it's ...
    Metalbrain Metalbrain April 2006 Development
  • Manchester Simul-Meet?For those not able to attend the London, or the proposed Skeggy/Ireland meets, is anyone up for a Manchester get-together on the 27th May, the same d…

    [QUOTE=gasman]But isn't that just ...
    Daren Daren April 2006 Sinclair Miscellaneous
  • SevenuP v1.20 availableRight now on my webpage: [url]http://www.speccy.org/metalbrain[/url] and soon on WoS too.

    [QUOTE=gasman]Now that I've tried ... release soon.

    [QUOTE=gasman]Still, nice work... it's ...
    Metalbrain Metalbrain April 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... /> uchar res1; // +13 typically "LD IX,nn" opcode
    uchar res2 ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... /> uchar res1; // +13 typically "LD IX,nn" opcode
    uchar res2 ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • Zelda cloneHi all you Zelda fans! This game has been moved from the Wanted: Game Ideas! thread because it seems to have enough people interested in helping wit…

    [QUOTE=aowen]But for AY gasman and Yerzmey would be better ...
    gasman gasman May 2006 Development
  • When do you optimise?I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that?

    ... seen several compilers that use IX to index parameters in the ... does it revert to using IX to index the stack. I ... stack and again start using IX. Maybe.
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • Anyone got divIDE and +3/+2A?About a year ago, somebody asked me to port the Spectrum +3e ROMs over to the divIDE interface. I did this, but never heard back so I was unsure if t…

    [QUOTE=gasman]
    I guess you've ...
    piters piters May 2006 Hardware
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    [QUOTE=gasman]Although you can do that ...
    Geoff Geoff May 2006 Sinclair Basic
  • Anyone got divIDE and +3/+2A?About a year ago, somebody asked me to port the Spectrum +3e ROMs over to the divIDE interface. I did this, but never heard back so I was unsure if t…

    [QUOTE=gasman]Hmm, you're right - the ...
    piters piters May 2006 Hardware
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