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  • Help with calculating screen addresses[SIZE=3][FONT=Calibri]I?m having a bit of a coding session whilst at work so can?t spend too much time on my current problem. I?m sure someone on thi…

    ... // attribute address refers to the attributes area.
    327 //
    328 ... ) coordinate - ordering borrowed from Sinclair Basic
    340 //
    341 // So ...
    Alcoholics Anonymous Alcoholics Anonymous October 2013 Development
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... /> [*]ANSI BASIC-78 / ECMA-55 Minimal BASIC standard compliant.
    [*]AY silenced on BASIC report.
    [*]AY supported ... enables in-line setting of attributes.
    [*]Cursor down ... .
    [*]More room for BASIC programs.
    [*]Newton-Raphson ...
    chev chev October 2013 Sinclair Basic
  • SCREEN$ bug fixI've been using the SCREEN$() function recently for reading data off the screen rather than taking up space with an array and I got fed up with the s…

    ... 't interfere with the screen attributes and as long as the ... return in case not to BASIC
    ld a,h
    cp $40 ;called from BASIC?
    ret nc ;no, A ...
    Battle Bunny Battle Bunny November 2013 Sinclair Basic
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... it.

    My ZX BASIC version executes NIRVANA_halt every 3 ... the screen (just without the attributes).

    I've changed ...
    Timmy Timmy November 2013 Brand new software
  • Get rid of 'Bytes:' when loading codeHow do you hide the 'Bytes:' when loading code? I've tried saving as CHR$ 22 + CHR$ 6+ CHR$ 0 (a blank part of the loading screen) but it still appe…

    ... the following line in your BASIC:
    PRINT AT 5,0 ... forget to turn on transparent attributes (INK 8: PAPER 8 : BRIGHT ...
    TK90XFan TK90XFan December 2013 Sinclair Basic
  • SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…

    ... will have all the Sinclair BASIC commands intact. SpecBAS is ... Sinclair BASIC on a much more powerful ... - and because the original BASIC gave commands and functions that ... bit per pixel screen with attributes, which ensured that UDGs would ...
    Dunny Dunny January 2014 Sinclair Basic
  • SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…

    ... will have all the Sinclair BASIC commands intact. SpecBAS is ... Sinclair BASIC on a much more powerful ... - and because the original BASIC gave commands and functions that ... bit per pixel screen with attributes, which ensured that UDGs would ...
    Wookiee Wookiee January 2014 Sinclair Basic
  • The Evolution of Some Nonsense[center] [B]TIMINGS FOR 100 BOUNCES[/B] [b]Ten Bouncy UDGs in BASIC[/b] [img]http://www.users.globalnet.co.uk/~jg27paw4/pourri/a000test.gif[/img] [u…

    ... that Sinclair BASIC did that SpecBAS cannot - there's no attributes, the ...
    Dunny Dunny January 2014 Sinclair Basic
  • Help with File Compressor by Mladen PopovicHi, I'm trying to compress BombJack (MCM) and transfer it to a +3 disk (Yes I own the original game :) ). I'm unsure about the addresses to enter in…

    ... load too low for my basic menu where I have a ... separate basic loader, the nessasary clear command ... guess I could clear the attributes and cls at the start ...
    Speccy_James Speccy_James January 2014 Development
  • How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…

    ... code]
    ; To test from BASIC:
    ; RANDOMIZE USR SetBLOCK (once ... br /> PRINTRO:;test from BASIC (otherwise this first section ... B column C with attributes A'
    push ... /> ld (hl),a ;copy attributes for graphic

    ...
    Battle Bunny Battle Bunny February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... memory address are the stored attributes being read from?
    13616 ... ; offset to stored attributes

    EDIT
    I ... offset = +768 bytes and then basic corrupts the display. If I ...
    Speccy_James Speccy_James February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... starts at 30000 and the attributes at 36144, so 22528 + ... have my screen data and attributes included in the code. ... I've put my attributes at 36144 and used the ... program with a randomize from basic to test it? If ... bytes and put my attributes in that location in ...
    Speccy_James Speccy_James February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... printer buffer. If the attributes copy is loaded there ... ), all of the standard BASIC system variables, and the ... start of the BASIC program. Unless paging is ... program never returns to BASIC I don't see ... .

    The attributes can be restored from any ...
    Battle Bunny Battle Bunny February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... 128 ), all of the standard BASIC system variables, and the start ... of the BASIC program. Unless paging is turned ... the program never returns to BASIC I don't see how ... and double checked everything, the attributes are confirmed at 36144 in ...
    Speccy_James Speccy_James February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... . If I return to basic after the attributes are unpacked to 36144 ... get nothing even though the attributes are confirmed to be located ...
    Speccy_James Speccy_James February 2014 Development
  • New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …

    ... now updated the ptime test BASIC a bit so the shadow ... contains not only zeros, but attributes with black paper and white ...
    Patrik Rak Patrik Rak March 2014 Emulators
  • Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…

    ... once a line at most, attributes being pushed to the memory ... intos that have the same basic accuracy. I actually meant for ... had time to get the basic facts together.

    I ...
    introspec introspec March 2014 Emulators
  • ZX Alien BreedNot sure if this has been mentioned already (I did trawl the threads but couldn't see anything :smile: ), but I've always hankered after a Speccy Ali…

    ... of style and inherit the attributes underneath hence the drop shadow ... as I never graduated from BASIC, UDGs and PRINT so I ...
    MykeP MykeP March 2014 New game ideas
  • Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…

    ... :-)
    It's written in basic with the plot routines from ... routines suit Clashbasher because the attributes are written before the display ... br />
    I wrote the basic part by refrencing this pseudocode ... first. That way the basic rom plot routine can be ...
    Basher Basher March 2014 Hardware
  • How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…

    ... you started messing around in BASIC with POKEs then you know ... ) off-by-heart, since Sinclair BASIC doesn't support hex. Doing ... get the address of the attributes, without the calculator.
    joefish joefish March 2014 Development
  • How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…

    ... you started messing around in BASIC with POKEs then you know ... ) off-by-heart, since Sinclair BASIC doesn't support hex. Doing ... get the address of the attributes, without the calculator.[/QUOTE]
    MatGubbins MatGubbins March 2014 Development
  • New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…

    ... multi-colour border effects in BASIC. To be honest, it took ... the same thing to the attributes in machine code.

    joefish joefish April 2014 Brand new software
  • What is this Nirvana engine?Ive been trying to look for a thread on this but cant seem to locate one. I downloaded a spanish game called El Stompo that uses this engine which ha…

    ... Spectrum screen by updating the attributes while the television picture is ... be used in your own BASIC programs on 48K Spectrums using ... you 16 columns of 8x1 attributes across 24 rows of the ... you 18 columns of 8x1 attributes across 18 rows of the ...
    chev chev April 2014 Games
  • Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…

    ... cycling) is 256x192 pixels, 8x1 attributes, 32 colours per line, up ... from 256. In addition, SE Basic IV uses a 480x192 window ...
    chev chev May 2014 Development
  • 128K shadow screen?Hi How does the shadow screen feature work , and how can it be used?

    ... 128 to ever return to BASIC or leave the standard interrupt ... having a different set of attributes on each of the two ...
    joefish joefish May 2014 Development
  • 128K shadow screen?Hi How does the shadow screen feature work , and how can it be used?

    ... 128 to ever return to BASIC or leave the standard interrupt ... having a different set of attributes on each of the two ... . I am not returning to basic and the PLAN is to ...
    micken micken May 2014 Development
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... and get it into my BASIC game.[/QUOTE]

    Use ... the display file, not the attributes (as it's black & ...
    Battle Bunny Battle Bunny June 2014 Sinclair Basic
  • Tile engine and slight colour flickerOver the past few nights I've been working on a simple tile game engine for a rock fold game I'm making. While all is going surprising well I've not…

    ... round to copying up the attributes. Either need to time it ... draw line-by-line with attributes.[/QUOTE]

    Thanks for ... .

    Knocked up this basic routine to test it. Hate ...
    richdotward richdotward June 2014 Development
  • Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …

    ... check the attributes of tiles on the screen, in BASIC? It seems ... grab the remainder in ZX BASIC.[/quote]

    You can ... ATTR, allowing me to apply attributes to the screen?
    Is ... you can update just the attributes. If you set either the ...
    chev chev June 2014 Sinclair Basic
  • Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …

    ... ATTR, allowing me to apply attributes to the screen?
    Is ... way to do this in BASIC. Certainly much quicker than using ...
    ccowley ccowley June 2014 Sinclair Basic
<1…19202122232425…34>

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