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<1234567…34>
  • Zero 0.7 / Zero 0.6.5 releasedAfter months of grueling work, I?m proud to announce the Vanilla version of Zero, which is a regular Windows version of the emulator. I?ve tried to m…

    ... .
    ? Fixed tool tip for system variables not showing hex number if ...
    Arjun Arjun January 2015 Emulators
  • Detecting TR-DOS w/o relying on system variablesOK, I know it's much easier to do this simply by checking whether the BASIC program area has moved or some specific pattern in the sysvars etc (somet…

    OK, I know it's much easier to do this simply by checking whether the BASIC program area has moved or some specific pattern in the sysvars etc (sometimes even checking the current value of PC might do). But let's say that, for whatever reason, you wanted ...
    Hikaru Hikaru July 2016 Development
  • Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…

    ... to without messing with the system variables or the actual program listing ...
    ivanb303 ivanb303 September 2016 Sinclair Basic
  • Help with Snake type game...any ideas ?Hi all I've attached me trying to write a snake type game. My first concern is me not writing over the System variables area. I'm pretty happy what i…

    ... me not writing over the System variables area. I'm pretty happy ...
    ivanb303 ivanb303 November 2016 Sinclair Basic
  • ROM PRINT routine issuesHi all, I am using the ROM print routines a lot in my assembly program and I'm experiencing issues. I am changing the system variable DF CC to po…

    ... issues. I am changing the system variable DF CC to point ... print routines are updating other system variables to check what 1/3 ...
    Kevin_C Kevin_C December 2016 Development
  • What should your speccy have come with ?:) I was thinking about this earlier. What changes should of been made to the Speccy when you purchased yours ? Realistically this topic really…

    ... PSU 'brick' itself

    System variables (two bytes maybe) to change ...
    spider spider December 2016 Sinclair Miscellaneous
  • z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …

    ... $ file from the disk using "system( command )" - yes I know I ... have upon compiling when using "system()" it simply isn't implemented ... Memory that are used by system variables and then have the basic ...
    Zetr0 Zetr0 June 2017 Development
  • Fuse 1.4.1 releasedA new release of Fuse, the Free Unix Spectrum Emulator, is now available at the SourceForge project: https://sourceforge.net/projects/fuse-emulato…

    ... "tape:microphone" and "spectrum:frames" system variables to allow access to the ...
    Fred Fred October 2017 Emulators
  • Fuse for macOS 1.4.1 ReleasedA new version of Fuse for macOS has been released at the dedicated sourceforge project: https://sourceforge.net/projects/fuse-for-macosx/ Note …

    ... "tape:microphone" and "spectrum:frames" system variables to allow access to the ... :
    [list]
    [*] All Z80 variables in the debugger must now ...
    Fred Fred October 2017 Emulators
  • Clever, yes. Useful? Not so sure. Re: LOAD ""CODE gamesI was always curious about how the (few) games that require that you type LOAD ""CODE, rather than the usual LOAD "" worked, but only just now decide…

    ... is it saves all the system variables, including the last command (RUN ...
    Ast_A_Moore Ast_A_Moore November 2017 Development
  • Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…

    ... scroll.
    -The management of variables for speeding up the program ...
    2-Flags of the system variables
    3-Piston for the ...
    IvanBasic IvanBasic April 2019 Brand new software
  • Adding command to BASICI am looking for an article about adding commands via software to sinclair basic. I know there was one published and to the best of my knowledge it w…

    ... to use some of the system variables to redirect the error handler ...
    dmsmith dmsmith August 2019 Sinclair Basic
  • Computer Haiku (converted from C64)[url=https://archive.org/details/Computer_Haiku_1983_CES]Here's the original C64/PET program - "Computer Haiku" by Commodore Educational Software, 19…

    ... , and uses massive strings of system variables, POKEs and control characters instead ... , just in different colours. More system variables and control characters had to ... generator was set by the system timer. I thought it unnecessary ...
    The Mighty Dopethrone The Mighty Dopethrone September 2020 Sinclair Basic
  • PSI ChessHi, Anybody out there remember the game "PSI Chess" by The Edge? Well, there seems to be no problem finding a snapshot ot tape image for this game …

    ... BASIC, or protected it with system variables, some emulators should be able ...
    Ed Ed February 2002 Games
  • Character set variableCan anybody help me? I'm trying to find out where the pointer to the ascii character set is. I remember that if you wanted to change the font on the …

    ... chapter 25 you find the system variables.CHARS is the one you ...
    Alessandro Tommasi Alessandro Tommasi May 2002 Games
  • Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…

    ... the PRINTER BUFFER!!!
    Then system variables as you said, which end ... in 48K mode, and by system variables in 128K mode. I wonder ...
    Alessandro Tommasi Alessandro Tommasi November 2002 Sinclair Miscellaneous
  • Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…

    ... the buffer is after the system variables in the printer channel(s ... see that the program and variables will slide about in memory ... the default setup with the system variables following the screen memory at ...
    Geoff Geoff November 2002 Sinclair Miscellaneous
  • TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…

    ... stack, the TS2068 stored extra system variables and the "OS RAM Routines ...
    Sparky Sparky December 2002 Sinclair Miscellaneous
  • new emulatorHi All. If you wish you can download/test/link to/betatest etc. my new emulator EmuZWin 2.0. It emulates S48 and S128 and works under all Windows 9x…

    ... like the ROM calls and system variables specifically labelled and the ability ...
    rich_chandler rich_chandler May 2003 Emulators
  • How do I avoid BASIC becoming corrupted on returning from a M/C routine?I'm having trouble with my BASIC program becoming corrupted on returning from a m/c routine which sets all the registers (including the shadow regist…

    ... , as that points to the system variables area. SP is also important ...
    Philip Kendall Philip Kendall May 2003 Sinclair Basic
  • BASin Release 9a availableJust a quick not to say that an updated (ie, bug fixed) BASin is available. A list of what's new for release 9: Fixed a bug in the line tokeniser th…

    ... etc.
    Then, in the system variables, the 30 bytes at MEMBOT ...
    Geoff Geoff September 2003 Development
  • POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…

    ... 25 of the Spectrum manual ( system variables):

    [url="http://www ...
    dave_beer_uk dave_beer_uk October 2003 Sinclair Miscellaneous
  • TimingHey All, Is their away of obtaining timing information on ZX128k other than addresses 23672->23674. Basically I would like to identify every 100th …

    ... /> Tricky. The counters in the system variables are simply incremented every time ...
    Philip Kendall Philip Kendall January 2004 Development
  • MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program

    ... , as pointed to by the system variable PROG, and add three or ...
    monty.mole monty.mole May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... that ram was used for system variables etc.
    robpearmain robpearmain May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... that ram was used for system variables etc.
    [/quote]

    Philip Kendall Philip Kendall May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    Indeed - but frankly you only need to care about the system variables if you're using BASIC - otherwise you can fuck them up as much as you like.
    cyborg cyborg May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... need to care about the system variables if you're using BASIC ... interrupt mode 1? Otherwise, various system variables are still updated - the last ...
    monty.mole monty.mole May 2004 Development
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... that ram was used for system variables etc.
    [/quote]

    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
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