World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.106s
<1234567…34>
  • bitmap address to attribute addressI've searched, but I don't seem to find the proper keywords. I have a bitmap screen address in DL, character aligned (the address of the top byte of…

    ... I have a bitmap screen address in DL, character aligned ... (the address of the top byte ... a quick way to get the corresponding attribute address fiddling with ... that bitmap address?

    na_th_an na_th_an November 2013 Development
  • Calculating screen address to alternative ATTR area?I'm using this small snippet of code to convert a screen address to an attribute cell address... [CODE]AttrDE: ld a, d ; get the hig…

    ... of code to convert a screen address to an attribute cell address...
    ... attribute address
    or 0x58 ; set the high order byte to ... /> ret ; de now contains the attribute address
    [/CODE]

    Sokurah Sokurah January 2014 Development
  • Z88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…

    ...
    ; hl = attribute address corresponding to pixel

    ... />
    ; hl = attribute address

    pop de ... /> zx_saddr2aaddr() stands for "screen address to attribute address".

    zx_px2bitmask() ...
    Alcoholics Anonymous Alcoholics Anonymous June 2016 Development
  • Reading DEFB for backgroundsHi all I suppose the question is kind of silly but I'm a completely newbie with assembler :-S I'm drawing some side backgrounds with ZX Paintbrus…

    ... useful bits of code. Attribute address to screen address, and screen address to attribute address.
    [code]aa2sa ...
    FrankT FrankT December 2018 Assembler
  • Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?

    What is the fastest way, given x,y (in hl) to return the attribute address?
    robpearmain robpearmain December 2005 Development
  • What should be the base address to set for my codeHi, I am new here and I have a simple question but one which I have not found an answer to. When I am developming my programs what should I set th…

    ... have not found an answer to. When I am developming ... I set the base address for my code to (i.e. the ... area of the memory assigned to machine code can move ... fixed location that I can to give me as much ... start it at the highest address that it could possible be ...
    Scrapheap Scrapheap April 2006 Development
  • Work out screen address from attribute cellAttribute cell 22529 is equivalent to PRINT 0,1 position value. Is it possible to obtain these two values from the number 22529 in a simple MC rou…

    Attribute cell 22529 is equivalent to PRINT 0,1 position value.

    Is it possible to obtain these two values from the number 22529 in a simple MC routine?
    daveysludge daveysludge October 2018 Development
  • Contact to authors of ARKANOIDHallo lads, Anyone knows the e-mail addres or snail mail address to author of music in Arkanoid? I would like to play with my band the new version …

    ... -mail addres or snail mail address to author of music in Arkanoid ... ?
    I would like to play with my band the ... , and I need his agreement to record it.

    I ...
    Snori Snori November 2002 Games
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    LD A, ... TO THE SCREEN

    ; ON ENTRY:
    ; HL CONTAINS SCREEN ADDRESS ...
    ; DE CONTAINS CHAR ADDRESS
    ...
    robpearmain robpearmain September 2004 Development
  • Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …

    ... ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    ; LD ... TO THE SCREEN

    ; ON ENTRY:
    ; HL CONTAINS SCREEN ADDRESS ...
    ; DE CONTAINS CHAR ADDRESS
    robpearmain robpearmain September 2004 Development
  • HOW TO *FORCE* AMSTRAD TO PRODUCE ZX?!OK then. Many chats last times about new ZX models, old ZX models but contemporary produced ;) , about Amstrad - what could it do and why didn't do m…

    ... />
    So now - HOW TO FORCE AMSTRAD TO PRODUCE SPECTRUM? Nowadays. As ... -action? Is there any mail-address to the firm?

    What ... arguments for such a letter to Amstrad?

    Greetz,
    Yerz Yerz October 2004 Sinclair Miscellaneous
  • Switch to 48mode without 'SPECTRUM' commandIs there a poke(s) to switch to 48 mode without SPECTRUM command. I want my tape loaders to switch automatically. I know how to switch ram banks ok…

    ... there a poke(s) to switch to 48 mode without SPECTRUM command ... /> I want my tape loaders to switch automatically. I know how ... to switch ram banks ok, but ... ;LENGTH BYTES TO LOAD
    LD IX,32768 ;ADDRESS TO LOAD TO
    CALL ...
    FrankT FrankT September 2005 Sinclair Basic
  • In the Dizzy games, I used to like......standing on a black background between two red pieces of scenery, so that Dizzy's body was white and his gloves were red, just as they should have…

    ... should have been. All thanks to attribute clash.

    There, I ... , but I felt I needed to.
    MattLamb MattLamb November 2008 Games
  • Talking to your 1st love again......(Serious post by rubberkeys!)As a lot of spec-chums on here know, my missus has gone away for the week....so all I have been doing is eating/drinking/watching football and annoyi…

    ... /> Well, I logged on to facebook...done the usual crap ... Me?"...(my profile is blocked to non friends btw)
    address to use on msn messenger.... ... said that she had to go to feed the baby, ... her again and talking to her....driving me nuts ...
    Dusti Dusti April 2009 Chit chat
  • Tips on optimizing some newbie assembly routinesI'm starting to learn some assembly language. The best way to learn is to actually code something you are going to use, so I'm creating a very simple…

    ... character (character # and attribute) and the table of ... , 1 byte for character attribute)
    ; Attributes not ... we are skipping the attribute character)
    push ... tileset base address to find the
    ; actual address of ...
    na_th_an na_th_an June 2009 Development
  • I want to volunteer for MIA & PermissionsAs it says, any tips on finding MIA & how to get permissions, any stories on how you eventually got tapes or finding the right people! Ive had some …

    ... /> Setting up a new web address with a top google hit ... & verified using a address to send to after they have submitted using ... the new email address? - people ... that some MIA have links to the original addresses eg. ...
    MuZiKiLL MuZiKiLL November 2010 MIA/STP/SDP
  • 2x 48K membrane free to a good homeOriginal + an RWAP model. Please email name and address to cheveron[at]gmail[dot]com. First come first served. These are for the rubber key machines.…

    ... model. Please email name and address to cheveron[at]gmail[dot]com ... key machines. You will have to peel back the metal plate ... for any damage you do to your machine.
    chev chev March 2011 Sales
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... and only there to allow sprites to exit the screen ... simply need to subtract 4 from the address to move to the line ... above. Which is the quickest way to ... i have the copy address in HL and the ... paste address in DE, and I ...
    Atari_Jetman Atari_Jetman September 2015 Development
  • 2x2 tile to attribute blocksHow do you go about converting a 2x2 tile to 16 x 16 attributes? Heres an example of the tile data I'm wanting to enlarge. [code] defb 255, 25…

    ... about converting a 2x2 tile to 16 x 16 attributes?
    to enlarge.

    [code]
    daveysludge daveysludge September 2016 Development
  • Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…

    ... other way to read a 16 bit port address is to put ... for you to change from x,y coordinates to screen address and ... Notice the screen address 010BBSSS LLLCCCCC

    To move up a ... screen address and attribute addresses. I'll leave that for you to work ...
    Alcoholics Anonymous Alcoholics Anonymous June 2003 Sinclair Miscellaneous
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... /> ScreenToAttr:
    ; converts a screen address to an attribute address
    ; on entry: de ... = screen address
    ; on exit : de = attr address ...
    robpearmain robpearmain August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... HL
    ; converts a screen address to an attribute address

    ld a ... HL
    ; converts a screen address to an attribute address
    ; on entry: de ...
    robpearmain robpearmain August 2004 Development
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    ; LD ... TO THE SCREEN

    ; ON ENTRY:
    ; HL CONTAINS SCREEN ADDRESS ...
    ; DE CONTAINS CHAR ADDRESS
    robpearmain robpearmain September 2004 Development
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    ; LD ... TO THE SCREEN

    ; ON ENTRY:
    ; HL CONTAINS SCREEN ADDRESS ...
    ; DE CONTAINS CHAR ADDRESS
    robpearmain robpearmain September 2004 Development
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    ; LD ... TO THE SCREEN

    ; ON ENTRY:
    ; HL CONTAINS SCREEN ADDRESS ...
    ; DE CONTAINS CHAR ADDRESS
    robpearmain robpearmain September 2004 Development
  • Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…

    ... :
    ; converts a screen address to an attribute address
    ; on entry: de ... sprite data to display.
    ; de = screen address to draw at ... address to 'jump to' to do rotating with
    Sprite_LastRotateAddr: DEFW NoRot2 ; address to 'jump to' to ...
    robpearmain robpearmain October 2004 Development
  • Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?

    ... the attr address and have the screen address the code ... Get Attribute Address
    ;
    ; Computes the attribute address corresponding to a screen
    ; address such ... enter: hl = screen address
    ; exit : de = address of attribute square
    ; uses ...
    rtunes rtunes December 2005 Development
  • Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?

    ... the attr address and have the screen address the code ... Get Attribute Address
    ;
    ; Computes the attribute address corresponding to a screen
    ; address such ... enter: hl = screen address
    ; exit : de = address of attribute square
    ; uses ...
    Dr BEEP Dr BEEP December 2005 Development
  • Getting attribute location from a screen coordinates (x,y)I am having trouble figuring out how to convert an x,y coordinate pair (pointing to a specific pixel) to the location of the attribute for the block …

    ... To convert a screen address to an attribute address, you want to go from #1 to ... /> ; Computes the attribute address corresponding to a screen
    ; address such as returned ... enter: hl = screen address
    ; exit : hl = address of attribute square
    ; ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... should be supplied at that address to deal with maskable interrupts. This ...
    ; d4ff - d4ff SP1.LIB attribute buffer
    ; d4f7 - d4fe SP1 ... +byte as the address of the interrupt subroutine to call. Another look ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
<1234567…34>

Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21

HitBox

Word Docs Hits
sxenn 0 0
address 11.8K 21.2K
to 549.6K 1.6M
attribute 2.9K 4.3K

Related Threads

  • bitmap address to attribute addressI've searched, but I don't seem to find the proper keywords.<br /> <br /> I have a bitmap screen address in DL, character aligned (the address of the…
  • Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?
  • Fastest way to decide which pixel to paint in order to draw a straight line(after I saw "Bresenhams circle algorithm" in development forum, I decided to ask this in here)<br /> <br /> in fact, I want to accelerate a car towa…
  • Now seems to be a good time to add to your collectionsI have bought a few spectrum items to add to my collection recently, had i bought them a year or two ago they would have cost double. This is one of …
  • Update to Image to ZX Spec to 1.3.1I'm inbetween jobs at the moment and felt the need to add a new feature - the ability to export anim gifs.<br /> <br /> [IMG]https://lh6.googleuserco…
  • Alternative to Poke 23659,0 to prevent a 'break in' to a Basic Program.Good morning everyone,<br /> <br /> My memory fails me these days but in the early days of programming I used to use Poke 23659,0 as a crude way of…
  • i want to save a snapshot file from snap to tap onto my hdd. what code address and length is it?hi,<br /> i want to save a snapshot file from snap to tap onto my hdd. what code address and length is it?<br /> i cant seem to find any info on th…
  • How to download games to micro sd card to play on Sinclair zx spectrum vegaHello<br /> Could anyone tell me how to download games from a website to a micro sd card to play on a Sinclair zx spectrum vega , I mean do I use a …
  • A game to port to... to make for... ZX Spectrum ?Hey there,<br /> <br /> I'm a game coder on Commodore computers (C64,CPlus/4,VIC20,Amiga) and I loooove the ZX Spectrum.<br /> I grew up with Comm…
  • How to copy file from tape (*.tap) to disks (*.dsk) ?I am using zx32 with win98 and i want (in the emulate +3) copy files from virtual tapes to virtual disks.<br /> <br /> I use =&gt; load "NameOfFile" …

Related Searches

  • from bedrooms to billions
  • z80 to tape
  • snapshot to tape
  • linux tzx to wav
  • trd files to image
  • fastest way to clear screen
  • user name and password to download emulator
  • convert src files to
  • rst8 return to basic
  • return to basic
  • convert to attribute
  • convert char to attribute
  • attribute address to co ordinates
  • attribute address to screen
  • row to screen address
  • screen address to buffer
  • screen address to x and y
  • attribute to row columns
  • screen address to attribute
  • ula generated ras going high switches the 74ls157 mux to select z80 column address

Copyright © 2024 World of Spectrum