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Search Again :: Adv Search 1000 results in 0.025s
<1…11121314151617…34>
  • Code optimisation - can you help?Hi Folks, I have been looking at the following code fragment for days and I have been able to improve its performance quite a bit. However, it is a…

    ... been looking at the following code fragment for days and I ... can make.

    [CODE]...
    350 LET h=INT ... /> AT 32,l;v$(CODE i$(3)+v(2),2 ... 10);(CODE i$(4)-h*16)*65536+CODE i$(6)*256+CODE ... ):
    LET h=INT (CODE i$(32)/16):
    LET ...
    Paddy Coleman Paddy Coleman March 2012 Sinclair Basic
  • The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…

    ... />
    '-': no error
    'H': header checksum error (HDCHK)
    'R ... want to tweak the machine code.

    Then connect ... will autostart, POKE the machine code (takes some time), ask ... can contribute some C++ code regarding that aspect would be ...
    Volker Volker March 2012 Emulators
  • Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …

    ... RAM-READ section of ROM code passed from testing lower RAM ... .zigg.net/ZX/ZX114/ZX114-error-annot-1.png[/IMG]
    Zorn Zorn April 2012 Hardware
  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …

    Here is the inefficient code:

    [CODE]
    ;; ram-check
    [/CODE]

    And ... faster routine:

    [CODE]
    ;; ram-check
    ... to last valid location.
    [/CODE]

    Another ...
    antoniovillena antoniovillena April 2012 Development
  • Tunnel Adventure: Known Error?I've been playing this game lately, and found out that both the current versions of [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0017444"]T…

    ... be finished due to an error.

    To complete this ...
    Timmy Timmy April 2012 Infoseek database
  • Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…

    ... forcing ADC op code....

    [CODE]
    10 ... br /> 240 SAVE *"b" CODE 28672,256 // 7000h
    250 SAVE *"b" CODE 32768,256 // 8000h
    ... /> RET

    [/CODE]

    [LIST=1]< ... efficient and is very error prone and will take ...
    Korinel Korinel April 2012 Emulators
  • simplest method to pass a string to m/code?The statement "RANDOMIZE numvar+USR mc" is a simple way of passing a single numeric parameter to a m/c routine, as mc can retrieve numvar from the to…

    ... $;: but that needs some prefatory code to adjust the machine stack ... needs two statements.
    * RANDOMIZE CODE "s"+USR mc: but that ... needs some prefatory code to set up a location ...
    Battle Bunny Battle Bunny April 2012 Sinclair Basic
  • SpecBAS 0.743 Now available!Hey Guys - SpecBAS has been updated again. A shedload of bugs have been fixed, and a couple of "just for fun" commands have been added! You all sa…

    ... a while ago :)

    [code]
    What's new for ... window
    Fixed a small error that prevented LIST VAR str ... line is REMmed out
    [/code]

    Go get it ...
    Dunny Dunny April 2012 Sinclair Miscellaneous
  • Open and read a file using +3DOS in MCForgive me if this has been asked and answered before, I've spent a fair few hours searching the forums and looking for books on the subject, all wit…

    ... trying to write the minimal code to open and read a ... manual, and it just returns error 21 (bad parameters).

    CODE.

    Even making sure ...
    RobeeeJay RobeeeJay May 2012 Development
  • number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…

    ... a "6 Number too big" error but decided against it. It ... and +2A as well.
    [code]
    DEF FN p$(n ... ,any) := "1.2345679E+8"
    [/code]

    --

    Now ...
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • EMUZLOADER errorI've been sent some program files in EMUZLOADER format. One won't load as the unpacking doesn't stop when it reaches the top of the stack at $408F bu…

    ... the screen, where the loader code resides, overwrites the stack and ... part of the code with zeroes and crashes.
    code. I thought maybe copying it ...
    Battle Bunny Battle Bunny May 2012 Emulators
  • OpenSE BASIC 3.1.1The eagle-eyed will have noticed that [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]SE BASIC[/url] got an update last week. As a te…

    ... a large chunk of code that needed reimplementing, and ... different, but functionally equivalent code for the missing routines, ... can reverse engineer the code, you're not allowed ... block data copy machine code command), ON ERROR (error trapping), PALETTE (switch ...
    chev chev May 2012 Sinclair Basic
  • Wriggler / WrigglerNLHi people, On my travels yesterday, I came across a confusing tape. It's Wriggler by Romantic Robot, as found here. The weird thing is that it doesn…

    ... black. Then it loads the code block, and crashes.
    ... so it sounds like the code block is corrupt (there's ... s no R Tape Loading Error. So maybe it's ... /> ... but if you type LOAD "" CODE at the beginning, it skips ... give an R Tape Loading Error, but it's not, ...
    Spirantho Spirantho May 2012 MIA/STP/SDP
  • Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…

    ... threatened in the "'Spectrum Play' Error" thread, here's a ruff ... was the ENTER key.
    [code]
    ; start: POKE 23681,254 ... /> rst $38
    ret
    [/code]
    Battle Bunny Battle Bunny June 2012 Sinclair Basic
  • Help needed... RND in machine codeI have been battling away trying to convert a simple BASIC routine (below) to machine code, but to no avail. The routine is used to fire 2 bullets a…

    ... BASIC routine (below) to machine code, but to no avail.
    daveysludge daveysludge July 2012 Development
  • Wiwo Dido and the case of the badly repaired timemachineAfter coding "Wiwo Dido and the case of the broken timemachine" I still wanted to add more options to the game. More options ment more code, so the…

    ... />
    More options ment more code, so the 1K barrier is ... not returning in time (the error appears after the time has ...
    Dr BEEP Dr BEEP July 2012 Games
  • Skool Daze source code (and others)I suggest adding the source code for [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0004549"]Skool Daze[/URL] (available [URL="http://pyskool…

    I suggest adding the source code for [URL="http://www.worldofspectrum ... br />
    [QUOTE]The source code file contains a detailed list ... to Skool[/URL] (source code with list of bugs available ... Contact Sam Cruise[/URL] (source code with list of bugs available ...
    Einar Saukas Einar Saukas July 2012 Infoseek database
  • Copying Files in +3e BASIC (not using COPY command)Hello there my fellow WoS'ers Yet again I find myself in need of guidance, I am sooo close to getting my prototype up. I am writing my own byte cop…

    ... -streams for this purpose
    [code]

    1000 OPEN #4 ... 1020 // GET NEXT CHARACTER
    [/CODE]

    thats about the ... an unexpected end of file error.

    I suspect this ...
    Zetr0 Zetr0 July 2012 Sinclair Basic
  • Developing apps for ZX Spectrum with SDCCDue to troubles with makebin utility which always starts coversion at memory address 0x0000 and can only produce binaries < 32KB, it can't be used to…

    ... /> ;; this area contains data initialization code -
    ;; unlike gnu toolchain which ... data, sdcc generates
    ;; initialization code for every initialized global

    [CODE]#include
    #include
    # ...
    tstih tstih July 2012 Development
  • Best books & Sugested reading..Hi i was trying to search the forum but couldnt find it. Looking at WOS there is a number of books on BASIC, programming, machine code ect.. I mess…

    ... books on BASIC, programming, machine code ect..

    I ... that all the boring machine code and interface I articles ect ... doubt that there was a error in the article..)

    code now.

    But what ...
    WibbleBibble WibbleBibble August 2012 Sinclair Basic
  • SpecBAS 0.753 Now available!Hi again - Thanks to the efforts of ASH-II and Galileo, there's been another round of nice quick bugfixes: [code] v0.0.0.753 ========== Bugs fixe…

    ... nice quick bugfixes:

    [code]
    v0.0.0.753 ... />
    ON ERROR now allows errors until your handler code returns
    [/code]

    Get it at ...
    Dunny Dunny August 2012 Sinclair Miscellaneous
  • Newer Spectrum games (late 90s and 2000s)I?ve played some of the Classic Spectrum games now but I know nothing about the Spectrum games made after the eighties, the more modern ones, the lat…

    ... looking for something to really hook me on)

    2 ... music, graphics, art and underlying code resulting in things like AI ...
    Mendel Mendel August 2012 Games
  • Hep needed with a bit of code...I've written a bit of code to make a character move across the screen, but the counter stops at 29 when the 3 lines to delete the characters trail ar…

    ... 've written a bit of code to make a character move ...
    daveysludge daveysludge August 2012 Development
  • z80 Code Profiling (RESOLVED)Hi All, Just a quick question to ask if there is any way of profiling z80 Code for the Speccy??? I'm trying to write a piece of software and I curr…

    ... any way of profiling z80 Code for the Speccy???

    code, which is a pain in ... to auto-profile the running code, I would be extremely grateful ...
    Shando Shando August 2012 Development
  • Machine code loopsThis might sound a bit daft, but I,ve forgotten how to do loops using th 'b' register... I want to loop this x mount of times: [CODE]ld a,r and 6 i…

    ... mount of times:

    [CODE]ld a,r
    and ... /> call 43100
    call 45000[/CODE]

    There is any ...
    daveysludge daveysludge August 2012 Development
  • Get a listing to .txtI am messing with an old Spectrum game which was written in Basic for the 48k Speccy (not compatible with 128s). I get an error in the begining of th…

    ... an error in the begining of the game and tha basic code ... txt file I get an error that the printer cannot print ...
    Pyjamarama Pyjamarama September 2012 Sinclair Basic
  • appending data while saving to tapeBefore trying to do this I just wanted to check if there's a possibility that it might actually work. I have a number of string arrays which I want t…

    ... to save as a single CODE block, and I was wondering ... file to later give an error on loading?

    Having ... (VARS) and just save as CODE from (VARS) with the combined ...
    Battle Bunny Battle Bunny September 2012 Development
  • BASin gets its (profile) sums wrong (sometimes)I often use BASin to time pieces of code, and I've found it to be useful, but I was testing a routine earlier, which took less than 2 seconds to run …

    ... BASin to time pieces of code, and I've found it ... still demonstrates the problem.
    [code]
    100 FOR R=0 ...
    201 NEXT r
    [/code]
    According to BASin 14b ... find any reference to this error in the forums, so I ...
    Battle Bunny Battle Bunny September 2012 Emulators
  • SpecBAS 0.754 Now available!Hi all - Due to overwhelming demand from half of my userbase (That's ASH-II to you lot), BEEP has been added! It's not just any old BEEP though - y…

    ... What's new:

    [code]
    What's new for ...
    Fixed(?) a floating point error in sprite movement, with values ... finally nail this issue
    [/code]

    Enjoy, and grab ...
    Dunny Dunny September 2012 Sinclair Miscellaneous
  • Revisiting Spectrum CPU clock regenerationWarning: This post will be a bit nerdy :-) Some time ago, I experimented with phase locked loop circuits as a possible way to regenerate the Spectru…

    ... the edge connector. The phase error detection is simple - it ... this quite nicely. The phase error is detected and the regen_specclk ... :
    - Will this phase error be enough to be significant ... with the most closely timed code changing the right hand border ...
    Winston Winston September 2012 Hardware
<1…11121314151617…34>

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