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Changing the way SCREEN$ is loadedThe way the speccy loads in a SCREEN$ is interesting - top two-thirds first, then middle and finally the bottom, which is due to the way the speccy d…
... Pressing a key undraws (?) the screen.
[code]
org ...
inc hl ; next attribute
inc bc ; next ... ; poke to screen
inc hl ; next screen address
... /> nextline: inc hl ; next screen address
dec c ; ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... and, if the latter, is attribute scrolling required too?
screen pixel 4-ways scroll, without ... can scroll myself all the screen in 70000 T-states, so ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... of my sprite rendering and screen drawing immediately after the ... not only are you avoiding screen tearing but the ULA doesn ... interrupt stuff after drawing the screen updates or maybe every ... and looking for a particular attribute. This probably isn't the ... -
One for the demo codersOn this occasion I forgot I had already asked the exact same question in another thread.
... need to fade FLASH attribute). Each frame of fading ... process each attribute must be changed to ... you can take current attribute as pointer in look- ... up table and get new attribute from table.
;HL=screen attributes
ld e,(hl ... -
One for the demo codersOn this occasion I forgot I had already asked the exact same question in another thread.
... in the screen RAM) and see what a given attribute ought to ... -
Interlace demoSorry to reference another thread like this, but in the thread: [url]http://www.worldofspectrum.org/forums/showthread.php?p=313428#post313428[/url] …
... of demos which do rapid screen switching like that, and generally ... of yellow and black halftone attribute blocks. Yellow and black are ... . And this is a static screen - no hidden animations - you can ... take a grab of the screen and load it into Art ... -
Interlace demoSorry to reference another thread like this, but in the thread: [url]http://www.worldofspectrum.org/forums/showthread.php?p=313428#post313428[/url] …
... 's precise position on the screen. That's clear. I am ... : Having %01010101 pattern in the attribute, pixels width might look like ... -
Which computer is most similar to Zx Spectrum?I have wondered recently wihch other 8-bit computer is most of all similar to Zx Spectrum. I mean similar graphics, similar gameplay, similar program…
... />
Similar screen resolution
Crap Keyboard
Dodgy Attribute handling
RGB on speccy ?hi, just a question : are you aware of scene demo trying emulate rgb ? i was a bit ill last few days so laying in bad i come with a (stupid ?) idea.…
... " multicolour routine, because the same attribute byte is repeated across the ... PUSH them out again into screen memory) can only manage 16 ...RGB on speccy ?hi, just a question : are you aware of scene demo trying emulate rgb ? i was a bit ill last few days so laying in bad i come with a (stupid ?) idea.…
... 32 bytes of attribute data per scanline. 128 screen paging does help ... 128 - the one where each attribute square has to contain a ... /> [/code]
Even with screen paging at your disposal, this ... and write 64 bytes of attribute data between the start of ...Game engine design, graphic format?Having never written a game engine before, I'm in need of a little advice on the best way to store the game map. Its 512 x 896 map, 4-way scrolling,…
... be able to update the screen! I've settled for the ... 16x16 I'd use the attribute file for quick scrolling - like ... a SCREEN$ of your choice - each pixel appears as an attribute block ...Sprite Tutorial: Section on Masked Sprites addedLatest installment of my Sprite Graphics Tutorial: [url="http://members.aol.com/derekmsmith1/Spectrum/TUTORIAL.RTF"]http://members.aol.com/derekmsmi…
... at me! A flashing red attribute then a magenta one then ... to display it to the screen yet. Just you wait!Retro-X Alpha availableChanges from WIP 7 (Alpha 3) to Alpha 4 ( 1.5.08 - 14.5.08 ). Requested by and help by - in brackets. Bugfixes: * Viewer: o File list not displaye…
... bigger than a normal Spectrum screen. Allowing 200% messes anything ... We could import a few screen$ for a sequence, import a ... X be used in full-screen/maximized or the windows size ... only if you choose in Attribute settings the "Intelligent Bright", otherwise ...artist neededany volunteer here on WOS ?
... scroller, attribute clash is too much restricting. just flip screen.
30x18 ...Watching screen while debugging???I'll try to state my problem clearly, but I don't know if I'll succeed ..:) I load a Spectrum program into emulator (it doesn't matter which one at …
... it will tell you the screen and attribute addy, colours contained therein ...CSSCGC 2008 has now officially begunFor coming last in the 2007 crap game compo, I have the honour and privilege of hosting CSSCGC 2008! I have now put up the CSSCGC 2008 website at …
... one now has a loading screen included, so thanks for that ... second email about the BRIGHT attribute:-
The answer is ...ANNOUNCE: JSW64: Flash Manic MinerI am delighted to announce the gamma-release of [b][i]JSW64: Flash Manic Miner[/i][/b], which is available as a free download from [url]http://geocit…
... you to go across the screen as many times as possible ... fourth item has a colour-attribute of 255, which terminates the ... fifth item has a colour-attribute of 255, which terminates the ... cross the bottom of the screen and work your way towards ...What to write next...?Having not being blessed/cursed with such a mad & rampant imagination as Mr. Cauldwell I'm always after ideas for new spectrum games to write. It's …
About Doom-like game with attribute graphics. If 32x24, it will ... (btw, initially it had 64x24 attribute graphic). CPU usage in Wolf ... , texture scaling ~300000t, chuck-to-screen output ~75000t.What to write next...?Having not being blessed/cursed with such a mad & rampant imagination as Mr. Cauldwell I'm always after ideas for new spectrum games to write. It's …
... (btw, initially it had 64x24 attribute graphic). CPU usage in Wolf ... , texture scaling ~300000t, chuck-to-screen output ~75000t.[/QUOTE]
And ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... ; On screen QP_SCREEN (default 16384)
; write attribute byte QP_ATTR and ... />
; Write the attribute byte first
... ; Gett attribute byte and write it to screen
... /> ;Change this to change attribute in use
QP_ATTR ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... test[/URL], but I see screen corruption during a soak test ... so that initial 1K of screen area, starting at $4000 is ... 6K) of the screen (including the entire attribute file) is tested in ... there is corruption on the screen (apart from the small part ...Hi-colour gamesDoes anyone remember some of the games that used something called Ho-colour? Like the options page on the Agent X games, and a few others. If memory …
... only display two colours per attribute square.
BUT!
screen.
I wait until the ... wait again, and change the attribute of the top-left character ... appears [i]in the same attribute square![/i]. Magenta, of course ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... you need to write dedicated screen conversion program for that mode ... best match for every possible attribute combination between both screens. You ... ) [url]http://omega.webnode.com/screen/ql-dithvide/[/url]
MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... switch scanlines on the three screen method. I'm not sure ... the two screen method. I could have alternate 8x1 attribute bytes since ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... bytes + 2x 6144 attributes. Complette screen length is 2x12288=24576 bytes ... creates only multicolor effect in attribute area, but each frame must ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... get an 2 vram 8x1 attribute pic out of Bzither. Also ... by Velesoft, is simply one screen in multicolour.
GigaScreen ... . Without it the screen sucks.
Normal Screen - I suspect you ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... it gives us on the screen this pic [...] where actually blinking ... well suited for usual 8x8 attribute blocks. I wonder how it ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... necessary is to switch which screen is displayed every interrupt.[/QUOTE ... it's using an 8x1 attribute mode with two screens?
screen like this or if we ...MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…
... well suited for usual 8x8 attribute
>blocks. I wonder ... best. Normal depth of converted screen is rather poor so when ... ).
This is the screen. You will just have to ... help to set emulator's screen to 256/192 original size ...Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... the program to reset the screen to a black colour (There ... zeros out all of the screen and attribute bytes).
I ... load some CODE into the screen area and grab that.
