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<1…12131415161718…34>
  • Put off by the Spectrum character setAm I the only one? Someone suggests a game, and you go "Ooooo haven't heard of that one, I'll give it a sho...*recoils in horror at the ZX Spectrum c…

    ... ? why not use these modified ROM files that contain a different ... -square/[/url]

    The numbers are pretty good, as are ...
    chev chev April 2011 Games
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... the same sequence of random numbers generated. This happens if ... the same sequence of random numbers.

    In #2 ... number. This means the numbers initially generated by RND will ... . This assumes the basic rom interrupt routine is running becasue ...
    Alcoholics Anonymous Alcoholics Anonymous May 2011 Sinclair Basic
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... case: addition of these two numbers gives us a carry, BUT ... run this "monitor program" from rom, will it allow me to ...
    PeterP PeterP June 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... case: addition of these two numbers gives us a carry, BUT ...
    ccowley ccowley June 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... expected to see completely different numbers, but it looks like the ... entire memory map including the ROM. It's probably one or ...
    ccowley ccowley June 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... expected to see completely different numbers, but it looks like the ... up to 16384 is the ROM, and unless you're doing ...
    gasman gasman June 2011 Emulators
  • Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …

    ... be surprised if large numbers of the English speaking ... [QUOTE=Crisis;546792]is a ROM available?[/QUOTE]
    It have ... years ago...
    This ROM initializes the computer and loads ... Special commands are off course ROM depending, different story there ...< ...
    Encarnado Encarnado July 2011 Emulators
  • Nintendo shares slump...Hi Folks, I see that Nintendo's share price has slumped after poor results and luke warm sales of the 3DS console. [url]http://www.bbc.co.uk/news/b…

    ... gore and guts in huge numbers, but if you want solid ... Console game vs. a downloaded ROM in an emulator is also ...
    merman merman July 2011 Chit chat
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... port addresses as 16-bit numbers.

    On ... future hardware the Spectrum ROM always reads from port ... here. The fact that ROM attempts to save an ... comment: So, even if ROM reads only from one particular ... force software other than ROM monitor program to obey ...
    PeterP PeterP August 2011 Emulators
  • Monty MoleDoes anyone know if the crushers in the Monty Mole games are random or if there's some sort of sequence to them?

    Technically, if it's using a random number generator, there will be a pattern. But it'll be such a long one you'll never learn it. It'll be some bit-shifting sequence, or reading numbers from the ROM, or something.
    joefish joefish August 2011 Games
  • Monty MoleDoes anyone know if the crushers in the Monty Mole games are random or if there's some sort of sequence to them?

    ... -shifting sequence, or reading numbers from the ROM, or something.[/QUOTE]
    numbers from the ROM as you said, then ...
    XTM of TMG XTM of TMG August 2011 Games
  • 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. …

    ... 't actually work as the ROM still inserts chr$ 14 and ... /> Although it requires 16 bit numbers it only starts counting after ...
    Geoff Geoff August 2011 Sinclair Basic
  • checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…

    ... think! (Note: 48K ROM used)
    The numbers to poke at any ...
    roko roko September 2011 Sinclair Basic
  • User Defined GraphicsCan someone please give some very simple code for a displaying a UDG at a location on screen? Any assistance would be greatly appreciated. Sincerely…

    ... Ooze, if you're using ROM calls you need to point ... thing) just using the char numbers 144-164.

    This ... fonts for Stamp Quest). The ROM calls can cause problems and ...
    R-Tape R-Tape September 2011 Development
  • IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…

    ... expression evaluation while the two numbers are stacked invdividually, then stack ... 16 bits & strings in ROM
    roko roko October 2011 Sinclair Basic
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... than the ULA and the ROM. Even the socket for IC4 ... couple of the other serial numbers around it from the serial ...
    cmonkey cmonkey October 2011 Hardware
  • AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…

    ... itself doesn't call a ROM routine which uses IX (I ... " will work. This is because numbers in strings don't have ...
    Battle Bunny Battle Bunny October 2011 Sinclair Basic
  • Classics ported or cloned on good ol' SpeccyHi, Spectrumists! I'm a fan of classic arcade games and I would like to know from you what do you think about ports or clones of such games on the S…

    ... You can relpace zx rom with divide 16kB ram ... Way for install custom rom image to DIVIDE ram:[/QUOTE ... later. The Pac-Man ROM also uses RAM locations ... for the emulation. The ROM in page 0, working ... first 8K of ROM (used to source random numbers) in page ...
    obo obo November 2011 Games
  • Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…

    ... differences in some of the rom. Distinguishing the 128s seems more ... ]

    You can test rom data. All this models use ... different rom. But some users can install ... exist FDD ports - write data numbers to "sector" port and read ...
    velesoft velesoft November 2011 Development
  • Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …

    ... it only ever holds the numbers 0 to 7. This
    numbers 0 to 7 it's ... sprite counter and limit the numbers
    ;it holds to 0 ... but instead of using the ROM
    ;routine to do all ... of all the crap the ROM does and free to use ...
    Turkwel Turkwel November 2011 Development
  • The SAM CoupeDoes anyone own one of these? I remember being jealous of a friend who bought one of these machines which had a disk that made the system compatible …

    ... can be install original ZX rom to low 16kB and active ... protect in low 16kB for rom emulation. It enable run ZX16 ... models, only use different port numbers). Some 128kB games can be ...
    velesoft velesoft November 2011 Hardware
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... because it copies the resulting numbers back into the commands at ... in BASIC is the Speccy ROM copies the number 60000 into ...
    joefish joefish December 2011 Development
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... because it copies the resulting numbers back into the commands at ... in BASIC is the Speccy ROM copies the number 60000 into ...
    Paddy Coleman Paddy Coleman December 2011 Development
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... opcodes
    - to know Spectrum ROM (and yes, don't call ... /> - to use binary and hexadecimal numbers
    - to count tstates
    Ralf Ralf January 2012 Development
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... opcodes
    - to know Spectrum ROM (and yes, don't call ... /> - to use binary and hexadecimal numbers
    - to count tstates
    Turrican Turrican January 2012 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    ... that what you want? The ROM to do it or do ... learn from?

    The ROM code is very slow and ... of plot (ignore the line numbers; it comes from a copy ... comes from.

    The ROM draw code is very slow ...
    Alcoholics Anonymous Alcoholics Anonymous January 2012 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    Tried calling the Sinclair User ROM routine... Totally baffled now!

    Sorry for being thick, but how do you load the registers with 2 different values in an assembler?

    How do you load minus numbers?!

    FLUMMOXXED!!!
    daveysludge daveysludge January 2012 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    ... ]Tried calling the Sinclair User ROM routine... Totally baffled now!
    How do you load minus numbers?!

    FLUMMOXXED!!![/QUOTE]
    Dr BEEP Dr BEEP January 2012 Development
  • Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…

    ... at the photos and item numbers.

    Items:

    3-) ROM or ULA
    4-) ROM
    5-) low ...
    Turrican Turrican January 2012 Hardware
  • Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…

    ... at the photos and item numbers.[/QUOTE]

    Hi, Turrican ... cpu
    3-) ROM or ULA
    4-) ROM
    5-) low ... mbo. That leaves the Z80, ROM or the lower RAM chips ...
    deckard deckard January 2012 Hardware
<1…12131415161718…34>

Latest Posts

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