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Search Again :: Adv Search 1000 results in 0.046s
<1234567…34>
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... stuff at the start of Page 5 (at 8000h). I ... this for graphics instead of page 2 due to the ... which requires me to manually page in ROM 3 and RAM 0, and ... 3:

    In normal operation of the 128k editor, if page ... used for the stack from page 5. Does this not ...
    rbsfou rbsfou January 2007 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... The stack needs to stay out of the paged area (the ... examples in the spectrum rom seem to use the ... requires me to manually page in ROM 3 and RAM 0, and ... don't know about +3 specifics, but Sinclair basic ... z88dk (preferably with the +3, although info on the ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • How to stop the +3 disk motorHi Folks. I was reading this thread [url]http://www.worldofspectrum.org/forums/showthread.php?t=32069[/url] and in post #17, Macc mentioned that the…

    ... the +3, I just do the following:

    [code]OUT 8189 ... in normal page mode, ROM 3, and motor off. Normal page mode and ROM 3 is ... the normal state of the +3 just ...
    mcleod_ideafix mcleod_ideafix June 2012 Sinclair Basic
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... ;page 7, ROM 2 (DOS)!!
    XOR A
    OUT ...
    ldir ;save page 7 $db00->$e7ff ... page 7 $db00->$e7ff
    PO_3: call SWAPFG ;swap out +3 ... PO_0: call PAGE_H ;page 4, ROM 3 (BASIC)!!
    [/code]
    Battle Bunny Battle Bunny July 2013 Games
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... - which requires me to manually page in ROM 3 and RAM 0, and ...
    glancaster glancaster July 2009 Development
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ...
    Bits 0-2: RAM page (0-7) to map into ... /> ROM 1: 128k syntax checker
    ROM 2: +3DOS
    ROM 3: 48 ... 0
    2. OUT #1FFD, 0 (128K editor rom)

    ... /> RST #11E
    OUT #1FFD, (23399)
    OUT #7FFD, (23388 )
    bverstee bverstee April 2010 Hardware
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... LD BC, 0 ; file 1, page 0
    CALL DOS_READ ; ... ld bc, 32765
    out (c),a ; execute paging
    rom 3
    call pagin ;calls ... , 22 ;loads ram 6, rom 3
    call pagin
    ... ld bc, 32765
    out (c),a ; execute paging< ...
    BCH BCH July 2013 Games
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ... ; closing file

    ; page BASIC ROM
    ld a,$10
    out (c),a
    ei
    ; 6..3 Reserved
    ; 7 1=end ... /> dw 14729
    db 3 ; RAM 3
    dw 49152
    ... should work in any +2e/+3/+3e, but it does ...
    Zup Zup December 2013 Development
  • replacement +3 psuok, who would be kind enough to help an idiot build a replacement PSU for the +3 / +2a , from a PC power supply? Guesser has already helped out a gr…

    ... a replacement PSU for the +3 / +2a , from ... /> Guesser has already helped out a great deal on another ... and i've gone out and bought the approriate ... far is this page about the +3 psu, and i ... speccy.org/hardware/hardware/Fuente+3-i.html[/url]
    out...
    Hungry Horace Hungry Horace September 2006 Hardware
  • Spectrum+3Hi all, Got my Spectrum+3 from eBay this afternoon. Powered it up to find the drive belt is a no go. So I need a drive belt, Ok easy to get hold of n…

    ... /> Got my Spectrum+3 from eBay this afternoon.
    ROM`s I took out the +3 ROM`s and ... put in +2B ROM`s ... as they are V4.1 and the +3 ... elastic bands and the +3 worked after doing it ... , that had broke. So out it came.
    As ...
    swift240 swift240 July 2007 Hardware
  • 128 ROM paging alternativeWould this work (with the appropriate code in each ROM)? [code] ; 128 rom paging routine ; use rst 28h with call address stored after restart ;;rom…

    ... the appropriate code in each ROM)?

    [code]
    ; 128 rom paging routine
    ; use rst ... ; disable interrupts for page
    out (c),a ; and page

    page
    out (c),a ; and page

    chev chev August 2008 Development
  • Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…

    ... is it possible that the ROM is malfunctioning specifically while executing ...
    I changed the ROM chips (mask ROM's manufactured by AMI ... copy of the spanish +3 ROM's from the Philip Kendall ... (it's address 0312h at ROM 3): original ROM has 05h here. My ...
    mcleod_ideafix mcleod_ideafix December 2009 Hardware
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... feature of the +2A / +3.

    Port 0x1FFD ... />
    Bit 3 - Management of shadow ROM. If 0 you get ... connection of an additional page of ROM occurs regardless of the ... m planning to use [b]OUT (C), A[/b] with ... to switch off the +3 motor once the program ...
    ajmoss ajmoss August 2010 Hardware
  • Is it possible to access the +3 disk drive via m/c in USR0 mode?Is it possible to access the disk drive of the +3 via m/c +3DOS calls when running in USR0 mode? I ask because I'm having an awful lot of trouble ge…

    ... when it works fine from +3 basic. I've tried in ... 0x217f in rom 2, it always switches out rom 2 for rom 0 at ... code is working fine in +3 basic, I have a ... made

    ld b,3
    call 265

    [/CODE]

    In both +3 basic and USR0 mode I ...
    cmonkey cmonkey October 2011 Development
  • PlusD Mini: implementing the CPLDI am doing my first attempts on creating a CPLD to use as replacement for the PlusD's GAL (and other logic lateron). I use the Xilinx XC9500XL series…

    ... br /> Then I added the 3.3V voltage regulator, wired the ... .
    I connected the 3.3V to all three VCC ... sel
    | zxrom);

    // Page out = OUT 231(making zxrom low will ... a1
    | f17);

    // ROM/RAM select (PlusD paged in ...
    bverstee bverstee February 2013 Hardware
  • DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…

    ... /> OUT #E3,3 > OUT #17,6
    Higher ram page number than 3 is ... for testing without flashing to ROM = after power-off return to ... system flashed in DIVIDE PLUS rom.

    If anyone ... = possibility switch between two 8kB rom images in adress space 0 ...
    velesoft velesoft June 2013 Hardware
  • 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…

    ... incompatibility with Spectrum software. ROM routines were in different places ... compatible mode. You could page flip between two screen pages ... function dispatcher to execute a ROM routine or function. Other ... s banking mechanism via an OUT 244,3. The other 8% ...
    Sparky Sparky December 2002 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... in place of the paged out ROM.

    [quote]
    3. The Timex 256x192 pixel, ... to program any memory page into any 8/16k ... a total rewrite of the ROM.

    [quote]< ... are a hundred clones out there. Timex machines *probably ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... in place of the paged out ROM.[/quote]
    Yeah, ... the Timex had)
    3. The Timex 256x192 pixel, ... to program any memory page into any 8/16k ... from my CoCo 3 experience. And paging out any place ... are a hundred clones out there. Timex machines *probably ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... practical from my CoCo 3 experience. And paging out any place in ... programmably occupied by any page of ROM or any page of the 128k ... command did and figured them out by trial and error.
    out of my mythical first 128 ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... programmably occupied by any page of ROM or any page of the 128k ... between real floppies (particularly the 3" variety) and the microdrive ... I would have picked 3" drives (not 3.5" those were too ... microdrive kit when we started out.

    [quote]Anyway, ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • TS 2068 and Emulator CartI picked up a TS2068 off Ebay last week and already had a ZX Spectrum Emulator cartridge for it. When I put in the emu cart and switch on, the mess…

    ... as long as the ROM itself isn't buggered. ... or an LROS (another ROM which could be another language ... it. Then an OUT 244,3 will page the cartridge into the ... happens to be a spectrum ROM, the computer crashes and ... entered NEW after the OUT just to make sure ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Hardware
  • Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …

    ... MicroSource pages itself out using IN or OUT commands or even ... calls an address in ROM, 3) pages MicroSource ROM back in, 4) ... called but failing to page BASIC ROM in and then calling ... the predetermined BASIC ROM address with the MicroSource ...
    BloodBaz BloodBaz March 2007 Emulators
  • Another TS Emu CartLooks like the one I have. [url]http://cgi.ebay.com/TC2068-Cartdrige-48K-emulator-for-Timex-Computer-2068_W0QQitemZ250133271074QQihZ015QQcategoryZ124…

    ... I found Jarek's page describing the difference between ...
    As he points out, Timex Portugal made two changes ... match the Spectrum's rom disable signal which can ... in by the Spectrum ROM on cartridge, which is ... be enabled with an OUT 244,3 command to map ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Sales
  • Testing the Ram on a Toastrack 128KHi All My "new" 128K is misbehaving, all the demos I have loaded for it crash instantly, Ghostbusters 128K is playable but one of the background scr…

    ... paging, but basically the ram-page that's in address 49152 ... in the bottom 3 bits of the value sent out to port ... of the value selects the ROM that's used... if you ... ) then you'll page out the 48k BASIC ROM, and your program will ...
    icabod icabod October 2007 Hardware
  • Wrong File Type, 0:1Ive gone thru an entire transform box full (20) of cartridges containing spectrum games that i wrestled off bay last year, yet not a single one will …

    ... trying to make Virtual Spectrum 3 emulate the Mirage Microdriver. ... gave me access to the ROM. Unfortunately the documentation that ... />
    [CODE]CALL $3800 - page out?
    CALL $5B00 - lots of ... buffer
    CALL $386D - page in?
    [/CODE]
    ...
    Jimmy Jimmy April 2008 Hardware
  • Attention Arjun (and people interested in BASIC games programming).I've been looking at the games created by [URL="http://www.worldofspectrum.org/infoseekpub.cgi?regexp=^EP+Software$&model=spectrum"]Angel Ortega/EP S…

    ... 128K machine (+2A/+3/SE) and a hacked ROM. I'm part ... set up some routines to page out the screen when it's ... for the UDGs into another page? Not much you can do ...
    BloodBaz BloodBaz November 2008 Sinclair Basic
  • +3 BASIC and RST 8I've been working on adding commands to the BASIC interpreter, in a similar style to how Interface 1 does it (catch the RST 8 error trap). This works…

    ... What I mean is page in ROM 1 and look for ... in) to find out the current paged ROM. If the flag ... not matter - because if ROM 3 is already selected nothing further ... the flag is true and ROM 1 is paged).
    ... trying to examine the actual ROM each time (apart from ...
    Winston Winston February 2009 Development
  • Speccy +2 (Grey) peripheralsHello all, I have just bought a grey +2 to use as a workhouse whilst I keep my 128 toastrack for Sunday best. It hasn't arrived yet, however I was wo…

    ... way up to a +3. The problems generally occur ... which are basically a +3 with a tape deck instead ... are designed to be +3 compatible - they'll usually ... have a "+3 switch" or a jumper ... the peripheral needed to page out the main Spectrum ROM.
    Winston Winston June 2009 Hardware
<1234567…34>

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