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<1234567…34>
  • "Break on Write" Debugger in EmulatorHi, [B]Are then any Emulators that supports a "Break on memory addres XXXXh being written to" breakpoint function in their debugger?[/B] I have com…

    ... any Emulators that supports a "Break on memory addres XXXXh being written to ... value 16 when willy lands on his feet again. His X ...
    BloodBaz BloodBaz January 2010 Emulators
  • SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…

    ... asking how to set breakpoints on memory write etc. in SPIN, here' ... /> There are 2 ways to break execution on SPIN. Via the debugger ... /> It's possible to break on read from / write to a specific address ... RADDR (Read ADDRess). You can break on port I/O instead by ...
    Marko Marko November 2007 Development
  • some debugger in emulators that is able to brakpoint when a mem address is accessed ?Is there a debugger (disassembler) available in some emulator that is able to stop (breakpoint) when a particular memory address is accessed ? For e…

    ... asking how to set breakpoints on memory write etc. in SPIN, here' ... /> There are 2 ways to break execution on SPIN. Via the debugger ... /> It's possible to break on read from / write to a specific address ... RADDR (Read ADDRess). You can break on port I/O instead by ...
    Ralf Ralf November 2009 Emulators
  • Copying a single character from one place to another?[code] ORG 33000 LD A,8 LD HL,16384 LD BC,256 LD DE, 18432 LOOP: PUSH AF LD A,(HL) LD (DE),A ADD HL, BC POP AF DEC A JR NZ,LOOP REST […

    ... asking how to set breakpoints on memory write etc. in SPIN, here' ... There are 2 ways to break execution on SPIN. Via the debugger ... /> It's possible to break on read from / write to a specific address ... RADDR (Read ADDRess). You can break on port I/O instead by ...
    Ralf Ralf March 2017 Assembler
  • Technical ExcellenceI don't know if I'm covering old ground here, forgive me if I am... I'm interested to find out what you all think was technically the best spectrum …

    ... one, though not the one on WoS. Fuse and (I think ... the user to set a break on memory access, as well as several ... Message was edited by: Woody on 2005-07-27 23:18 ]
    Woody Woody July 2005 Games
  • Error Message on memory testI have just tried PRINT PEEK 23732 + PEEK 23733 * 256 on what I think is a 48K rubber key machine and instead of getting either (a) for a 48k unit…

    ... + PEEK 23733 * 256

    on what I think is a ... /> Is this indicative of screwed memory ?
    ADJB ADJB November 2008 Hardware
  • 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! …

    ... breakpoints for specific values read/write from memory, ports etc.
    + Monitor ... in Monitor. Added options to break on interrupt and re-triggered interrupt ... view to reflect the latest memory state.
    - Fixed incorrect emulation ...
    Arjun Arjun January 2013 Emulators
  • Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…

    ... will be able to write a packer for yersen in ... be 160*128 into memory and working on it.

    on all instances of that address ... be drawn the prog will break. Look at the ix ... where the attributes start on a screen break on #e0b7 and examine ...
    Mr. Anonymous Mr. Anonymous July 2007 Games
  • Break points in SpectaculatorHello!!! How do I make the break points to work? I found a POKE for "The Muncher 128K" (using my ZX Life Shield WIP utility) but it is only the cou…

    ... currently only supports break-on-execution breakpoints. Memory read/write breakpoints will be in ...
    Jon Needle Jon Needle June 2008 Emulators
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... /> 2) What's with the memory window in the Spin debugger ... do a break on data read/write or does it only break when the ...
    Paradigm Shifter Paradigm Shifter January 2010 Development
  • Ziggy - An emulator for WindowsAfter nearly a year of plugging away on the keyboard it's a proud moment for me to announce the release of Ziggy - an emulator for the Windows (what?…

    ... or when another app on my PC produces sound ... "Break on write to port $FE" option, and I need the memory viewer ... see changes to the memory contents while the emulation ... I could use the memory viewer as a hex ... editor to edit the memory. SpecEmu does not do ...
    ccowley ccowley May 2010 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... /INT
    * Breakpoint on read/write to a specified memory address/IO port ...
    * Breakpoint on executing a ... ;& mem[pc]==0 should break execution when the Z80 is ...
    mcleod_ideafix mcleod_ideafix January 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... /INT
    * Breakpoint on read/write to a specified memory address/IO port ...
    * Breakpoint on executing a ... ;& mem[pc]==0 should break execution when the Z80 is ...
    chernandezba chernandezba February 2015 Emulators
  • Range breakpoints in FUSE?Hello, Is it possible to set a breakpoint over a range of memory in FUSE? I want to find where a program writes to the screen. Thanks.

    ... be fired based on Memory Read Address (MRA) and Memory Write Address (MWA)
    dbolli dbolli March 2019 Emulators
  • ZX48k terminal...Hello everybody, I thought someone might help me. I connect my good old ZX48k to my PC via serial (IF1) link, and I was trying to write a little term…

    ... and I was trying to write a little terminal program in ... when I press space (not break) on the spectrum,
    I ... of getting a L: break into program at line
    on the keyboard affect the INKEY ... br /> And why as a break?

    I'm ...
    Alessandro Tommasi Alessandro Tommasi October 2001 Sinclair Miscellaneous
  • More questions to ponder/argue/ignore as you wish...Just copying some stuff to a memory stick, and I found some old questions I'd intended to post on these forums to provoke debate, that I'd never got …

    ... copying some stuff to a memory stick, and I found ... ask since seemingly EVERY advert break on Comedy Central contains clips from ... gaming? This discussion was going on on another forum, with some ... consoles CPU(s), graphics card, memory, etc, then you might ...
    ewgf ewgf February 2010 Chit chat
  • Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…

    ... * Constant byte block fill.
    On the Z80, the fastest way ... With DMA using the same memory write timings, this is reduced to ... .

    * Memory to memory transfers
    On the Z80, LDI takes ... Verilog source will be linked on the ZX Breakout wiki once ...
    Winston Winston November 2014 Hardware
  • Currah uSpeech ROM Paging and BootyHi, When I emulated the Currah uSpeech for [url="http://www.inkland.org.uk/inkspector"]InkSpector2[/url], I made it page in its own ROM on memory …

    ... in its own ROM on memory writes to address $0038 ... makes itself visible when memory writes to $0038 are ... does recognise the attempted memory write to $0038 and pages ... flag reset) is true on the final line above ... real uSpeech respond to memory writes of $0038? ...
    inky inky October 2019 Hardware
  • Best Soccer Game Ever!What?s your favorite spectrum soccer game ever? For me, Emlyn Hughes International Soccer; Match Day;Trak Suite Manager;MultiPlayer Soccer Manager. C…

    ... games? I have played on loads! I never liked ... there was one later on with pretty graphics and cursor ... out a routine to save on memory for reducing the amount ... of memory for screen displays, and ... took only 2 weeks to write ("yes we can tell ...
    sickhappyidle sickhappyidle March 2003 Games
  • New (?) auto-hacking methodFollowing a discussion with BadBeard on another thread, I think it would be appropriate for me to share something with the rest of the world (i.e. th…

    [quote]
    On 2003-08-16 21:51, ... of saving a snap to memory, playing until a life was ... known then a simple memory write breakpoint set on that address trapped the ...
    Woody Woody August 2003 Sinclair Miscellaneous
  • InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…

    ... because placing an instruction opcode on the bus is a similar ... to place an instruction / vector on the data bus.

    memory, followed by 3 cycles of memory write and another 3 cycles of memory write ... detailed it tends to be. On the other hand, this might ...
    Alcoholics Anonymous Alcoholics Anonymous July 2004 Development
  • What does SPIN have?I have been asking this question since somebody answered another I had made that RealSpectrum was a brilliant emulator. It is in fact. But... I see e…

    ... br /> [quote]
    On 2004-09-01 16:30, ... will no longer center on the current instruction when ... it to have a 'Breakpoint on Memory Access' too....

    write, the debugger will finally ... that they're working on RealX, I'm waiting ...
    GOC GOC September 2004 Emulators
  • New release of EmuZWinEmuZWin Version 2.6 Release 1.0 Beta? ? (30-Jan-2005): A lot of changes. Most important are: [+] Formats supported: RZX, SLT. [+] Sound devices sup…

    ... is possible to set breakpoints on memory read/write, on port in/out, and ... call routine in the Spectrum memory, not only just stop. A ... release could work very slow on slow machines due a bug ...
    Vladimir Kladov Vladimir Kladov February 2005 Emulators
  • Advice needed - Xbox EmulatorsDoes anybody have experiance of using a speccy emulator with an Xbox ? My intention is to install Linux and then try and run an emulator (most like…

    ... same as pressing Symbol Shift on the Spectrum, and
    < ... screen, as it would press [BREAK] on the keyboard)

    * ... pause the game (pressing A on the Spectrum keyboard).
    < ... moves, XBox X makes Eric write on the blackboard (use either BLACK ...
    ewgf ewgf February 2006 Emulators
  • How to speed up TZX loading (emu development)With many newer emulators there are options to do faster loading schemes, even for turbo-loader or protected loader blocks in TZX files. For example,…

    ... detect loaders using a simple memory compare.

    When an ... are exceptions to this if memory serves.

    Get ... For each, look at the memory bytes around the IN instruction ... .

    Marko went on to write a much more advanced routine ...
    Dunny Dunny May 2006 Emulators
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... order to save on memory) and this change ... br /> g_puchar0 = gfx_storePlotColour;
    break;
    }

    ... br /> g_puchar0 = gfx_storePlotColour;
    break;
    }

    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • What did Spectrum BASIC lack (and was BBC BASIC so good?)Over the years, I've read in various multi-format magazines, that BBC BASIC was probably the best BASIC available on an 8-bit machine. I've never use…

    ... of 100, pressing BREAK on a BBC Micro was ... (BREAK actually reset the 6502, but didn''t clear down memory ... typing OLD after pressing BREAK would get your assembler ... make BREAK do a hard reset and clear memory - ... rough equivalent of Break on a Spectrum.
    Winston Winston September 2007 Sinclair Basic
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... not harm. Say:

    On 48k and 128k, the only ... code fetch), M2 (memory read) and M3 (memory write) cycles is contended, and ... of these regular M cycles. On +2A/+3, the only contended ... according to the value left on the bus by the preceding ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Problem with replacing all upper memory with 4164 chipsGuys, i have a problem with the high memory of a 4B issue. At first the board had OKI chips for high memory and one of them was faulty. Since its ea…

    ... ).

    On a write cycle, the WR line on the Z80 goes ... clock at T3 - the full memory write is 3 T-states) which ...
    Winston Winston December 2007 Hardware
  • Problem with replacing all upper memory with 4164 chipsGuys, i have a problem with the high memory of a 4B issue. At first the board had OKI chips for high memory and one of them was faulty. Since its ea…

    ... I upped the resistance on my home-made Spectrum ... as 65535, but the memory didnt work. The reason ... power-on test is that its a very simple memory write ... from where the ULA memory accesses "leak" into ... the CPU memory accesses.

    ...
    Phu Phu December 2007 Hardware
<1234567…34>

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