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Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
...
;; load pixels into screen RAM, backwards
LD A ...
;; load attributes into screen RAM, forwards, without
;; ... to, say, load the screen attributes into high memory somewhere, ... for an "instant" loading screen, then resume loading the ... -
How much does Bifrost improve graphics (test 192x192 graphics)Inspired by the BIFROST library I made several experiments with 8x1 graphics at 192x192 resolution. The results are now overwhelming but under certai…
... time to "manually" replace attributes on screen during TV raster scan. Both ... -
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…
... at the top of the screen just prints "llo" in black ... at the bottom of the screen.
[/quote]
That ... AT control, and as the screen is by default 800x480, you ... cannot - there's no attributes, the screen can be any size you ... -
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…
... paintC but read attrs from screen and store readed bytes to ... [B]paintC[/B], reading attributes from screen and storing it into a ... -
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…
... [B]paintC[/B], reading attributes from screen and storing it into a ... -
Full-screen 32 columns bicolor engine NIRVANA+I'm glad to announce the release of [b]NIRVANA+ ENGINE[/b], providing support for bicolor graphics (multicolor 8x2) in 32 columns for all standard Sp…
... the raster beam to update attributes on screen at the right time ... -
A new emulator is in townHello, I'd like to announce a new ZX Emulator, it's Spectacol (https://github.com/bog-dan-ro/spectacol) a free (GPLv3+) emulator which currently t…
... .
- Options for stretching to fill screen ignoring scale factor, and with ... -
A new emulator is in townHello, I'd like to announce a new ZX Emulator, it's Spectacol (https://github.com/bog-dan-ro/spectacol) a free (GPLv3+) emulator which currently t…
... is not necessary to show screen previews.
[/quote]
Noted ... "]
- Options for stretching to fill screen ignoring scale factor, and with ... -
Flicker-free animationTrying to create flicker-free screen update, but... Where I'm wrong? [url="https://dl.dropboxusercontent.com/s/pfywhfejfmwt2zq/test_128.sna"]Snaps…
... ZXSPECTRUM128
SCREEN EQU 0xC000
CYCLES ... /> ; --------------
; fill screen data with desired byte
; swap screen, with help of self-modifying ... /> clear_attr:
ld hl, SCREEN + 3 * 0x800
... -
Randomised data samplingHere is something that could be written in BASIC, if anyone is interested. Lets say we want to sample a subset of a larger population, we can do t…
... I cannot retain the original attributes on screen - so there are advanges ... -
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 …
... /> CALL INITIM2
; Fill Back buffer with a bright ... ON ENTRY:
; HL CONTAINS SCREEN ADDRESS
; DE CONTAINS CHAR ... char, X char
;Attributes: No attributes
;Mask: Yes, ... -
SPIN - debugger / fill memory / how ?I try to fill the screen with 00 value, but I don't get the expected result. - pause the game - debugger - hex numbers - fill memory block - fill wi…
I try to fill the screen with 00 value, but I ... /> - hex numbers
- fill memory block
- fill with 00
- main ...
- view memory
- all screen data is still there, no ... -
Compressing SCREEN$Guys I'm trying to find an MC type-in routine for the 48K which compressed the screen (including attributes) into an area of memory and also restored…
... the 48K which compressed the screen (including attributes) into an area of ... restored said compression back to screen area. Any ideas? I want ... -
Screen AttributesNot sure if this is a devolopment question but here goes... In my limited understanding, the 'attribute file' of a speccy is 5800h to 5AFFh and each…
... each character position on the screen. With bits 0 to 2 ... -
Invisible loading screenI can't remember how this is done (I did it years ago but can't remember how). When loading a screen$ from basic you can see the lines being display…
... ).
When loading a screen$ from basic you can see ... />
you can set the screen black so the lines are ... lines showing until the colours attributes are loaded (using basic, not ... -
Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
... 's the fastast way to fill a block of memory with ... fastest way to update the screen. I know that ldir/lddr ... -
The ULA and ScreenI've asked something similar before but please bear with me. I'm trying to understand the way the screen is controlled. The ULA controls output to …
... to understand the way the screen is controlled.
The ... controls output to the the screen and the rom sets out ... the memory locations of the screen ( and attributes ). is this correct ??
What happens during a reset?I always used to wonder about this, but only thought a bit more about it last night when noticing after all these years what actually happens. Obvio…
... happens.
Obviously, the screen goes black, but you also ... value being sent to every screen position - a byte with just ... the screen attributes.
I notice that the screen seems to fill in ...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 …
... 't in the attributes but was in the screen.
Does ... that once I understand the screen layout better then I will ... hopefully help me understand the screen layout better.Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …
... ; 46608 ; copy working tile attributes to zoom view
... /> xor a ; to fill the b, c, d ... br />
; ---------------
; ZOOM ATTRIBUTES
; ---------------
;
; perform ... br /> ;
; Clear both screen areas in mode 2 without ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... screen
(13 bytes). I also found a routine which can 'fill ... , due to the way the screen
pixels are stored in ...Any BBC aware Specchums out there?After the UK101 and VIC20 emulators I've moved my sights onto emulating a BBC computer. This emulator will be different though in that it will be a Z…
... the keyboard, writing to the screen, saving to tape, scrolling the ... can't draw to the screen, save files, make sounds ... EOF, deleting files, changing file attributes etc.
[*]Graphics ... anybody have a fill routine which can fill with an 8x8 ...Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…
... simply do a 'load "" screen$' based video from a divide ... t render a screens and attributes quick enough to prevent flickering ... not a problem as the screen refresh is instantaneous.
... double buffer a pre rendered screen$ somehow for copying immediately ...Loading screen recreation in HTML 5I have just developed a LOAD "" SCREEN$ simulation using the new canvas object in HTML. It is imitating the image bytes loading, as well as the attr…
... have just developed a LOAD "" SCREEN$ simulation using the new canvas ... loading, as well as the attributes pass, including the border animation ...Screen Viewer: Speccy View 4SpeccyView (v4.0) Here is my new zx spectrum screen viewer, result of this weekend's work. Features: Loads: -Standard Screen Files (6912 byte raw …
... Features:
Loads:
-Standard Screen Files (6912 byte raw .scr ... match border colour to the screen,
-Loading and header ... Panning with drag
Strip attributes to see hidden messages etc ...
Hotkeys
Save screen to Scr, Png, Bmp, Jpg ...Support of other SCREEN$ formats in ZX-PaintbrushDear readers, I've already implemented a nearly complete ULAPlus support in my developing version of ZX-Paintbrush. Works fine so far. But I asked m…
... [LIST]
[*]Standard screen$ (256x192 pixels, 32x24 attributes, standard palette)
6912 ... bytes
[*]ULAPlus screen$ (same ...
[*]screen$ with 256x192 pixels and 32x192 attributes, making 6144+ ...Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... redisplay a line of attributes from the screen. For example:
attributes in some way - another USR ...Pixel Pimp, graphics utilityHi All, [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/pixelpimp.gif[/IMG][IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes…
... blocks (line fill, mirror, shift, orpaste, flip), data and attributes, something to ... 'de stijl' if my loading screen disobeys any of its rules ;-)Find-Fill-Copy functions for BASICThere's not much going on here, so here's three m/code routines to provide some data manipulation functions which are otherwise slow to do from BASIC…
... f("z()","",find)
* fill array 'a' elements with value ... eg. FN f("z$()","wxyz",fill) -or- FN f("z()"," ... INT PI",fill)
* [optionally copy ... will set the top four screen lines to green on ... /pourri/find-fill-copy.zip]Find-Fill-Copy.zip[/ ...ZX-Paintbrush version 2.2 releasedDear readers, Today I released ZX-Paintbrush 2.2 with many new features. I hope you'll like it. Please refer to ZX-Paintbrush's section of my homepa…
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[*]Timex screen support
[*]New tool "Free attributes"
[*]Better map ... new CHX file, you may fill it with a Windows font ...
