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<1234567…34>
  • New project for 256 colours Games emulator!O.K. , I suggested Jonathan Needle ( Creator of the excellent Spectaculator at [url="http://www.Spectaculator.com"]www.Spectaculator.com[/url] ) to c…

    ... 's display, bit 6 comes from z80-6's display, bit 5 ... comes from z80-5's display, ... , bit 0 comes from z80-0's display ... . Take this 8-bit value ... get a 24-bit RGB value for display. Spec256 must ...
    Alcoholics Anonymous Alcoholics Anonymous January 2004 Emulators
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... the beeper (bit 4), the MIC connection (bit 3) and ... PEEKed.

    Bit 0: Being a one indicates no ... next keyword.
    Bit 1: This bit being set to ... LASTK system variable) and bit 5 of 23611 (FLAGS) ... has been pressed.
    Bit 7: Syntax flag.
    ...
    na_th_an na_th_an April 2005 Development
  • 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…

    ... the justification mode. If flags bit 0 is set then we're ... group of subroutines is the display address subroutines, which can do ... area of the spectrum's display file). So the subroutine " ... is entered. The spectrum's display layout has each byte in ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • 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…

    ... a buffer), read the next display byte (ie from the udg ... displayed) and shift the bit we want to bit 0, mask that off ... and and/or it into the last display ... all for this with appropriate bit shift.

    Next post ...
    Alcoholics Anonymous Alcoholics Anonymous August 2007 Development
  • 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…

    ... go:

    [b]display.h, display.c[/b]

    ... with z88dk to handle all display and sprite responsibilities. Using ... br />
    SP1's display model has the screen divided ...
    // flag bits:
    // bit 0 = draw plot background (plain, river ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • 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…

    ... part

    With bit 0 of flags done, we move ...
    [code]
    // bit 1 = grey mountains
    // bit 2 = black mountains ... br />
    [code]
    // bit 7 = invalidate plot so that ... of minor functions in display.h / display.c to go over ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…

    ... />
    .right
    bit 0,b ; if first pixel in ... run into set pixels in display
    ret z ; ... and c ; set pixels on display
    cp b ; ... a mask + display address), "SPPixelUp" (modify display address to ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Development
  • ZX81 tape formatIs there a description of it somewhere? The TZX format doesn't give it but can it be worked out from what it says about block 19? There is a good d…

    ... pulse, length Sync1 Sync2 Bit-0 Bit-1
    -----------------------------------------------------------------------
    Amstrad CPC Bit-1, 4096 Bit-0 Bit-0 (2) (2)
    display was enabled)
    ...
    zxbruno zxbruno January 2009 Hardware
  • Speech reproduction on the Speccy - 2009 style?Thanks to Chapter 33 of [url="http://www.worldofspectrum.org/infoseekid.cgi?id=2000388"]Super Charge Your Spectrum[/url] by David Webb - "Speech Repr…

    ... .H):

    [code];6 bit на nowait машинах и на ... *#400+TABLES ;адрес таблицы для +0

    ORG #A000
    begin
    DB 0
    TPAGES
    ;в обратном ...
    Shiru Shiru January 2009 Development
  • Speech reproduction on the Speccy - 2009 style?Thanks to Chapter 33 of [url="http://www.worldofspectrum.org/infoseekid.cgi?id=2000388"]Super Charge Your Spectrum[/url] by David Webb - "Speech Repr…

    ... .H):

    [code];6 bit на nowait машинах и на ... />
    ORG #6200
    DB 0
    TPAGES
    ;в обратном ...
    Shiru Shiru January 2009 Development
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... 8 BIT version ... br />

    org 0


    ; ... 0


    ; --------------------------------------------------------------------------


    ; Display ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... Name Bit Byte Size Description
    - 0 ~ 31 0 ~ 3 32 BIT Display horizontal ... raster display hardware.

    Name Bit Description
    PF0EN 0 Playfield 0 display ... enable.
    PF0MD 1 Playfield 0 ...
    ASM ASM October 2010 Development
  • 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 …

    ... /> DFCC EQU 23684 ; Address in display of current position
    ATTRP ... of font
    LD H,0
    LD L,A
    BIT 3,D ; Wrapped past 8 ... /> INC HL ; Increment position
    BIT 0,H
    JR Z,SAVEP ...
    Jonathan Harston Jonathan Harston November 2010 Development
  • 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 …

    ... something there.
    That [B]BIT 3,D[/B] is going ... /> DFCC EQU 23684 ; Address in display of current position
    ATTRP ... of font
    LD H,0
    LD L,A
    INC HL ; Increment position
    BIT 0,H
    JR Z,SAVEP ...
    Jonathan Harston Jonathan Harston November 2010 Development
  • +2A/+3 compatibility fixes thread!It might be a good idea to keep these fairly common +2A/+3 compatibility fixes (and requests) in a single thread for quick reference ;) Let's start …

    ... at $C000.
    ; Bit 3 : 0=SCREEN 0 (normal display file in bank 5 ... (shadow display file in bank 7).
    ; Bit 4 : 0=ROM 0 (128K ... the BASIC system:
    ; Bit 0: 1=Suppress leading space.
    jp jp January 2011 Games
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... wrapper for the 64-column display driver.


    ; 64 COLUMN DISPLAY DRIVER

    pr_64:< ... %00011000 ; mask off bit 3-4
    ld ... and %00000111 ; mask off bit 0-2
    rlca ; shift ... br /> rlca ; leaving 3-0
    rlca ; empty
    chev chev March 2011 Development
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... wrapper for the 64-column display driver.


    ; 64 COLUMN DISPLAY DRIVER

    pr_64:< ... and %00011000 ; mask off bit 3-4
    ld ... and %00000111 ; mask off bit 0-2
    rlca ; shift ... br /> rlca ; leaving 3-0
    rlca ; empty< ...
    chev chev June 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ...

    ; -----------------------------------------------------------------------------
    ; 64-COLUMN DISPLAY DRIVER

    push hl ... nc, NOT_RLC ; decide based on BIT 0 comparison
    ld a, INIT_RLC ...
    Einar Saukas Einar Saukas July 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ...

    ; -----------------------------------------------------------------------------
    ; 64-COLUMN DISPLAY DRIVER

    push hl ... nc, NOT_RLC ; decide based on BIT 0 comparison
    ld a, INIT_RLC ...
    Einar Saukas Einar Saukas July 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ...

    ; -----------------------------------------------------------------------------
    ; 64-COLUMN DISPLAY DRIVER

    push hl ... nc, NOT_RLC ; decide based on BIT 0 comparison
    ld a, INIT_RLC ...
    Einar Saukas Einar Saukas August 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ...

    ; -----------------------------------------------------------------------------
    ; 64-COLUMN DISPLAY DRIVER

    push hl ... nc, NOT_RLC ; decide based on BIT 0 comparison
    ld a, INIT_RLC ...
    Einar Saukas Einar Saukas August 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... FOR THE 64-COLUMN DISPLAY DRIVER
    ... ; -----------------------------------------------------------------------------
    ; 64-COLUMN DISPLAY DRIVER

    DRIVER:< ... /> srl c ; check BIT 0 from current column
    ...
    Einar Saukas Einar Saukas August 2011 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    ... and $07 ; a = bit position from leftmost bit (0 = leftmost pix in byte ... jr z, norotate ; if bit position is 0 we already have pixel ... CPPP
    Y coordinate (pixel 0-191): BBLL LSSS
    ... around to form the 16-bit display file address. For example, ...
    Alcoholics Anonymous Alcoholics Anonymous January 2012 Development
  • Hidden Spectrum emulator discovered in Goldeneye (N64)Commence ewgf's mind being blown in 3...2...1... [url]http://news.ycombinator.com/item?id=3770288[/url] [url]http://www.therwp.com/forums/showthread…

    ... in ASM for normal string display.

    NDOE @ 80024478:
    2F CPL
    CB47 BIT 0,A
    28.02 JR ... Z,+2
    CB82 RES 0,D
    Simple. Reads input ...
    Zoinkity Zoinkity March 2012 Sinclair Miscellaneous
  • Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…

    ...
    ld l,0
    call SHIFT ;shift display column
    call ... c,(ix+00)
    bit 0,l ;display or attributes?
    jr nz ...
    Battle Bunny Battle Bunny May 2012 Development
  • Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…

    ... due to the way the display file is organised. This ... coordinates fall outside the display file. For simplicity it ... br /> push af
    bit 0,(ix+36) ;preserve old ... ;A =old attributes
    bit 0,(ix+28) ;copy attributes?
    Battle Bunny Battle Bunny May 2012 Development
  • A quick newbish questionI'm reading through 'mastering machine code on your spectrum',as kindly posted by Mr bert on this forum. Correct me if I'm wrong from what i read,bu…

    ... the spectrum uses for the display?.

    I ... 22528 to 23296 to display graphics.Is this what ... you can store an 8 bit (0 - 255) number in each ... .

    Locations 0 -16383 is read only and ... top hand corner of the display. (Try POKEing 16384 with ...
    rich_chandler rich_chandler March 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... /> .ifdef ROM0
    ; THE 'DISPLAY ROUTINE' TABLE
    org 0x2320 ... br />
    ; THE DISPLAY ROUTINES
    pos_4:
    ... ; read byte at destination
    bit 0, (iy + _p_flag) ; over?
    bit 0, (iy + _p_flag) ; over?< ...
    chev chev October 2013 Development
<1234567…34>

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