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<1…18192021222324…34>
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... :
    The BASIC will print anything that is entered after ... the PRINT-command.
    The BASIC-interpreter in the ROM makes ... the printroutine from the ROM is used to print the character.
    The ROM-routine excepts the ...
    Dr BEEP Dr BEEP April 2009 Development
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... uinteger 23606,@Fontdata-256
    Print "Test"
    [/CODE]
    ROM's routines to save ... Try:
    [CODE]10 PRINT PAPER 2; STR$ 0: REM ... (0.5) : REM Should print "A0.5"[/CODE]
    ... but jumping into another ROM entry to allow drawing in ...
    boriel boriel May 2009 Development
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... slower than compiled one. The ROM is an interpreter. Consider this ... be much faster than ROM interpreter. The ROM will do something like ... BOLD and ITALIC letters. So PRINT ITALIC 1; BOLD 1; .... ... br />
    Other than that, ROM routines are used if available.
    boriel boriel May 2009 Development
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... =boriel;352439]
    For example, PRINT routine in ZX BASIC is ... BOLD and ITALIC letters. So PRINT ITALIC 1; BOLD 1; .... shows ... .

    Other than that, ROM routines are used if available ...
    LCD LCD May 2009 Development
  • Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …

    ... like:
    [code]
    PRINT "0909"(3 TO 4) : REM ... than compiled one. The ROM is an interpreter.[/quote]
    ROM. What I'm saying ... worth your time rewriting the ROM routines to suit you - ... the ROM isn't just an ...
    Dunny Dunny May 2009 Development
  • Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …

    ... /> ; ROM ROUTINES, SYSTEM VARIABLES and CONSTANTS

    pr_all equ 0x0b7f ; print ... /> ; SERVICE ROUTINES

    ; color print channel
    ; -------------------
    org 59392 ... trapping doesn't try to print attributes
    ; outside the ...
    chev chev May 2009 Development
  • Need to read code start and length from a +3 diskso i can transfer them to my internal ZXMMC interface and my mind has died as to how to do it (i know how to for a tape) any help or a general kick i…

    ...
    110 IF err0 THEN PRINT "Error ";err: STOP
    120 ... IF PEEK 40015=3 THEN PRINT f$;" CODE ";PEEK 40018 + 256 ... IF PEEK 40015=0 THEN PRINT f$;" BASIC ";PEEK 40018 + 256 ... back to the 48 BASIC ROM.
    ;
    finish:
    push ...
    John Elliott John Elliott May 2009 Sinclair Miscellaneous
  • ZX Spectrum 48K firmwareCan somebody tell me in which IC the firmware is located. I mean which IC holds the "Error Codes" ? I have a Spectrum which give the Error Codes in s…

    ... a ordinary ROM - but an EPROM :-(
    Maybe the print is not ...
    Tommy F-H Tommy F-H June 2009 Hardware
  • zx81 help neededHi, I got a ZX81 today supposedly in working order, it was for the first two minutes, but after that the keyboard produces the wrong letter, number …

    ... I'd guess either the ROM chip or the ULA chip ... =0 TO 63
    30 PRINT CHR$ I; CHR$ (I+128 ...
    Jimmy Jimmy June 2009 Hardware
  • ZX Spectrum 48K firmwareCan somebody tell me in which IC the firmware is located. I mean which IC holds the "Error Codes" ? I have a Spectrum which give the Error Codes in s…

    ... a ordinary ROM - but an EPROM :-(
    Maybe the print is not ...
    Cameraman Cameraman June 2009 Hardware
  • Windows problem - please helpA friend of mine's PC (XP service pack 3 *shudder*) has a problem - when he connects a USB stick the PC hardware Blue Screen of Deaths, a known probl…

    ... the Windows XP CD-ROM into the CD-ROM drive, and then ... the computer from the CD-ROM drive if you are prompted ... br />
    [B]Note[/B] Print these instructions before you continue ... the NTFS file system, also print the instructions from Knowledge Base ...
    ADJB ADJB July 2009 Chit chat
  • So what about ethernet and ZX BASIC?Well, as of about 5 minutes ago, ZX BASIC for the first time properly wrote some packets to the network! OK, so it isn't perhaps 100% what Andrew Ow…

    ... of flash contains the base ROM, which has the socket library ... functions, like the 42 column print routine and partial UTF-8 ...
    Winston Winston July 2009 Hardware
  • Channels and streams - reading dataThe FAQ here - [url]http://www.worldofspectrum.org/faq/reference/48kreference.htm[/url] - seems to be just a touch inaccurate when it comes to readin…

    ... 't do this, then any PRINT # statement involving colour items will ... them by calling the BASIC ROM's ADD_CHAR routine (IF1 actually ... is actually being returned? ie PRINT CODE INKEY$#4. If it ...
    glancaster glancaster July 2009 Development
  • FLASH EPROM programming on ZXExist any other software for rewriting FLASH EPROM or EEPROM chips on real ZX ? I know only: EEPROM flasher for original DivIDE [url]http://85.132.…

    ... 23300 in RAM by
    ; PRINT USR 15000
    ; From there ... EQU 225
    ;------------------------------------------------------------
    ;my ROM banks are paged in by ... = 21845
    IN A,(rombank0) ;ROM A14 must be lo
    roko roko July 2009 Hardware
  • Opus DiscoveryI've got an opus dicovery 1 with 2 x 3 1/2" drives. I used it many times on my 48k but it doesn't work with my 128k toastrack. It also had some sort …

    You can find out which ROM version you have with PRINT USR 8
    Fred Fred August 2009 Hardware
  • DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…

    ... can use the ROM function. Read the Shadow ROM disassembly to ... As I said, the Shadow ROM disassembly explains how this mechanism ... pattern for calling ROM routines when the Spectranet ROM is paged ... for example, to print a string using the BASIC ROM:

    Winston Winston August 2009 Development
  • z80 program to BASIN?I have a BASIC program with UDG:s loaded in a z80 snapshot file. I would like to edit the program with Basin, but I wonder what must be done before…

    ... in a keyword. So you PRINT USR or GOTO USR or ... . The reason is that the PRINT will obliterate a portion of ... address below your graphics. The ROM manages the machine stack, which ... . CLEAR effectively says to the ROM: "No more room beyond this ...
    Dunny Dunny September 2009 Sinclair Basic
  • Interface 1/Printer problemAre there any known incompatibilities between the Interface 1 and the standard ZX Printer? I've now had three working printers die on me. They were…

    ... Interface 1, not sure which ROM is in there.

    ROM by using
    CLOSE #1: PRINT PEEK 23729 ... the ZX Printer. Version 2 ROM BTW.
    Use of the ...
    Geoff Geoff October 2009 Hardware
  • Old peripherals on the Spectrum +2I have a Wafadrive and an Alphacom 32 (ZX Printer clone), neither of which work in 128 BASIC, but both of which work flawlessly when you run them in …

    ... Spectrum +3 user's to print in 128k mode. How can ... routines in the Gosh Wonderful ROM.

    The reason PSST ...
    Geoff Geoff November 2009 Sinclair Miscellaneous
  • POKING graphicsI remember using binary code (in BASIC) to POKE graphics (thanks Input magazine!) Using a FOR..NEXT loop you would POKE each square in the 8X8 charac…

    ... time the BASIC PRINT (or ROM routine that handles PRINT) is used you ... Comand like PRINT AT 3,12;"A" the ROM routines convert ... you could bypass the ROM with custom written Print routines then you ... with the BASIC PRINT functions and using the ROM directly but ...
    Turkwel Turkwel November 2009 Games
  • PentEvo/ZX Evolution PreviewCheck this -> [url]http://www.youtube.com/user/3ASOFT[/url] some Videos showing the PentEvo/ZXEvo ([url]http://www.nedopc.com/zxevo/zxevo.php[/url])…

    ... the 80's: the '10 PRINT "Hello": 20 GOTO 10' instant ... because it a has a ROM inside. Only 2nd version fixed ...
    RetroTechie RetroTechie November 2009 Hardware
  • Dim commandI try o find a BASIC COMPILER for ZX SPECTRUM 128 that use DIM command with two or more letter as 10 DIM AB(10) instead of 10 DIM A(10) Any iforma…

    ... there is an example in ROM already. So you lost me ... of those with FN so print FN w(a$,b$) would ... show up in a 'next ROM version'.[/quote]

    I ... need to implement in the ROM things that can be done ... 's own space in the ROM. It could also be implemented ...
    chev chev December 2009 Sinclair Basic
  • Dim commandI try o find a BASIC COMPILER for ZX SPECTRUM 128 that use DIM command with two or more letter as 10 DIM AB(10) instead of 10 DIM A(10) Any iforma…

    ... of those with FN so print FN w(a$,b$) would ... need to implement in the ROM things that can be done ... 's own space in the ROM. It could also be implemented ... need to live in the ROM are things like ON ERROR ... such would replace the 'old' ROM, in real or in emulator ...
    roko roko December 2009 Sinclair Basic
  • Programing books for the spectrum.Can anyone shout out some good programming books that are readily available to buy.

    ... all be long out of print. Here's some that I ... Webb)
    The Complete Spectrum ROM Disassembly (Ian Logan)
    Introducing ...
    Battle Bunny Battle Bunny December 2009 Sinclair Miscellaneous
  • Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …

    ... . It also has its own print routine (an early version of ... run without any valid main ROM. You may want to change ...
    Winston Winston December 2009 Hardware
  • Randomize usrHi, I've often wondered why/how they came up with RANDOMIZE USR <memory address> to invoke machine code couldn't they have used a better keyword (e…

    ... does not need RANDOMIZE or PRINT.[/QUOTE]

    Actually it ... Spanish version of the 128 ROM that's evaluating that function ...
    chev chev December 2009 Sinclair Basic
  • Randomize usrHi, I've often wondered why/how they came up with RANDOMIZE USR <memory address> to invoke machine code couldn't they have used a better keyword (e…

    ... does not need RANDOMIZE or PRINT.[/QUOTE]

    [QUOTE=aowen ... Spanish version of the 128 ROM that's evaluating that function ...
    BloodBaz BloodBaz December 2009 Sinclair Basic
  • 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…

    ... a bit
    call 6683 ;print bc
    ld a,13 ... ;
    rst 10h ;print Return
    pop af ;get ... /> I've never used the ROM to do any screen printing ... ]A[/B] from above. Sinclair ROM aficionados will put you right ...
    Chris Pile Chris Pile January 2010 Development
<1…18192021222324…34>

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