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  • 48k game to 128 DSK ?Yes exist a good way to convert a 48k game from emulator (z80, .sna, etc), to a dsk format to be used by emulators or the real Spectrum +3 ? thx in…

    ... on the target machine - using Z80.bas or ROMZ80.bas. since ... or both ROMZ80.bs and Z80.bas.

    You would ... the Snapshot loaders (load "A:Z80.bas") and then from there ... 3 and then save the contents of memory back to disk ...
    Zetr0 Zetr0 March 2011 Sinclair Miscellaneous
  • Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…

    ... it comes to dumping the contents of that buffer to the ... three threads. One for the Z80 and AY emulation, running at ... only get rendered when the Z80 emulation thread is waiting (sleeping ...
    Dunny Dunny April 2011 Emulators
  • Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…

    ... it comes to dumping the contents of that buffer to the ... three threads. One for the Z80 and AY emulation, running at ... only get rendered when the Z80 emulation thread is waiting (sleeping ...
    Arjun Arjun April 2011 Emulators
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ... set for a 3.5Mhz Z80 so the note data must ... /> AY Registers will retain their contents until they are changed so ...
    chev chev April 2011 Sinclair Basic
  • Load! Screen$ questionI've got a basic program listing in BASIN which among other things recalls a screen via Load! (I've Save!'ed a screen into memory before hand). How d…

    ... TO 9999". Your tap file contents will be ready, then select ... /> Also, you can save as "z80" snapshot. And it will load ...
    Arda Arda April 2011 Sinclair Basic
  • Load! Screen$ questionI've got a basic program listing in BASIN which among other things recalls a screen via Load! (I've Save!'ed a screen into memory before hand). How d…

    ... . SPIN loads the .sna (or .z80) but just displays the tape ... isn't looking at the contents of the RAM disc. The ...
    chev chev April 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…

    ... spat out by your average z80 assembler. Indeed, you could, ... way you would create any z80 program, they are equivilent... ... you can inject their whole contents straight into your emulator.
    z80 instructions, processed in the same ...
    kgmcneil kgmcneil April 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…

    ... you emulator starts, copy the contents of the 16KB ROM file ... the zero'th byte, as Z80 instructions.
    4. Every 69888 ... T-states, have your Z80 emulation simulate an interrupt if ...
    ccowley ccowley April 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…

    ... z80, whatever). How should I handle them (i.e. interpret their contents ... is the easiest to handle? .z80 snapshots?
    [/quote]
    z80 snapshots formats. For tapes, ... information about emulation of Z80 microprocessor/memory, they give ...
    Arjun Arjun May 2011 Emulators
  • DivIDE strange issueHello there my fellow WoS'ers I have a problem that I hope you can help me with... I have tested this on no less than 4x +3 Spectrums [B]1. Spec…

    ... machines. Could be the 'wrong' Z80 issue. Could be a dirty ... say it was just the contents of the flash-ROM were ...
    chev chev May 2011 Hardware
  • JSpeccy 0.88.4 releasedA new JSpeccy has been released. The main changes are: [LIST] [*]Resolves a problem in AY emulation code what affects the sound of Retrowork's game …

    ... the Z80 core with the mcleod_ideafix latest findings about register contents at ... to select which type of Z80 to use, which means presumably ...
    chev chev June 2011 Emulators
  • Which do I get? divide or Multiface 3?Hi, Having come back into the scene after s short 20 year break(!) I've obtained a +3 (needs new drive belt),+2 and a toast rack. tapes have been fi…

    ... that)

    there are initial limitations, you can load programs ... files) and Snapshots (SNA and Z80) these can come from an ...
    Zetr0 Zetr0 June 2011 Hardware
  • 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…

    ... package where Zexall was a .z80 file-maybe that's the ... to display something. Anything! My initial implementation was like this:
    z80 files or will I still ...
    Arjun Arjun June 2011 Emulators
  • A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…

    ... of c64 (if it was z80 based, maybe I could follow ... text */
    #define STARTROOM 0xA54D /* Initial room */
    -#define VERBS 0xA54F ...
    John Elliott John Elliott June 2011 Development
  • 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…

    ... 's advice. He mentioned the Z80 test suite. The package contains ... the "in" file and set initial values of registers and memory ...
    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…

    ... likely caused it-I misunderstood Z80 I/O operations. For example ... OUT (n), A instruction copied contents of A register to memory ... and where to write the contents of A.
    Some help ...
    PeterP PeterP July 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…

    ... likely caused it-I misunderstood Z80 I/O operations. For example ... OUT (n), A instruction copied contents of A register to memory ... and where to write the contents of A.
    Some help ...
    Dunny Dunny July 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? …

    ... TZX or .TAP and not .Z80 or .ZNA, obviously)?
    ... />
    2. The contents of memory are compared to ... the game (the contents of the virtual Spectrum ... that the game (contents of the virtual Spectrum ... game via it's memory contents.

    Update ...
    ewgf ewgf July 2011 Emulators
  • z80 Startuphi everyone, does the z80 upon start up reset all registers (including A) to 0? Many thanks, Robin

    ... ) because im (still) making a z80 computer and i have noticed ... address go high (because the contents of A are placed on ...
    Robin Robin August 2011 Hardware
  • 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…

    ... -code the IFF1 and IFF2 initial values to be 1 (ignore ... ; 0x1; // bit 2 is the initial value of IFF
    R ...
    PeterP PeterP August 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…

    ... Fuse does. In Fuse the initial execution always starts from address ... as they're overwritten by contents of a snapshot file.
    PeterP PeterP August 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…

    ... far as PC and memory contents pointed by it are concerned ... storing the game character's initial position on the screen which ...
    PeterP PeterP August 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…

    ... ultra-short implementation of
    .z80 loading routine, my last step ...
    PeterP PeterP September 2011 Emulators
  • Interest for more DivIDE interfaces?I'm wondering if there is still interest in DivIDE interfaces. I can make another batch of 50 if there is. So the standard DivIDE, not the DivIDE Pl…

    ... the limited case where the contents just use the standard ROM ... loader code via a debugger/z80 emulator, and managing the TZX ... to "enter" and "leave" debugger/z80 emulator mode!
    BloodBaz BloodBaz September 2011 Hardware
  • Where to start?..Hello, First off, sorry if this is in the wrong and sorry if the questions I'm about to ask have been asked and answered numerous time! Little back…

    ... saves the file as '.z80' file, which just ... is saving a snapshot (.z80) that represents the state ... the contents of RAM stored in the z80 file.< ... /> 'ORG' is not a z80 instruction but a directive to ... better off sticking with saving z80 snapshots anyway.

    Alcoholics Anonymous Alcoholics Anonymous September 2011 Development
  • ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…

    ... software aspects and conflates internal Z80 state with what's happening ... register. Internal RAM provides the contents of the relevant address, RAM ... it usurps INT from the Z80's internal point of ... wrote code that told the Z80 to accept maskable interrupts and ...
    Thommy Thommy September 2011 Hardware
  • TZX format rev. 1.21Once 1.20 draft seems to be official now I would like to suggest some additiones to do on 1.21. I hope it will be easier to upgrade once block 19 has…

    ... info block by design)
    Z80 4.00 - [B]Ok[/B ... information bits and show their contents. ZX Blockeditor even allows to ...
    Juanma Juanma September 2011 Emulators
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ULA shows the default contents of lower RAM, so it ... blocked or disrupted, but still Z80 does not 'step forward' into ... pulses are not there the Z80 is defective anyway. You also ... 'bars' appear and the freewheeling Z80 stack passes by the screen ...
    roko roko November 2011 Hardware
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... goes high impedance when the z80 accesses the rom during a ... the display, but not the contents of RAM. Perhaps it's ... 'feature' of the 4116 that contents can be damaged if an ...
    Zorn Zorn December 2011 Hardware
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    mel the bell on April 21
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    harriusherbartio on April 21
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    harriusherbartio on April 21
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    AndyC on April 21
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