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SpecBAS (SpecOS's BASIC interpreter) is updated - build 236Build 236 is up at [url]ftp://zxdunny.dyndns.org[/url] New for this release is the beginnings of a proper manual - all commands and functions docume…
... way beyond 64K
[*]Screen resolution and attribute clash
[*]Performance
psj3809 vs scottie_uk - who will be a dad first?The title says it all - who do you think will be a dad first - both say that their children are due to be born in two weeks time..
Why is Scottie wearing a loading screen? Was the baby born attribute by atribute?? Was he borne by a fancy loader?psj3809 vs scottie_uk - who will be a dad first?The title says it all - who do you think will be a dad first - both say that their children are due to be born in two weeks time..
[QUOTE=fogartylee;481502]Why is Scottie wearing a loading screen? Was the baby born attribute by atribute?? Was he borne by a fancy loader?[/QUOTE]
For Mrs Scotties sake I hope he was not born attribute by attribute, they are too blocky!How to Write ZX Spectrum Games As some of you may know, it has long been my intention to produce a document which explains pretty much everything I have learned - and am still lea…
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Finding Attributes
Calculating Attribute Addresses
Applying what We ... Look-up Table
Calculating Screen Addresses
Shifting
Pre ... - Double Buffering
Creating a Screen Buffer
Scrolling the Buffer ...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…
... screen at max - 512 bytes total. It is even less than attribute ... area of the screen.Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... br /> SCRWTH equ 256 ; Screen width in pixels
SCRHGT ... />
call cls ; Clear screen
call draw_sprites ... Write 0 to screen
inc hl ; Next screen location
... br />
ld hl,22528 ; Attribute address
ld bc,768 ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... it is interleaved with the attribute data. I shall provide a ... have the original Art Studio screen...
Now where is ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... interleave other data in there (attribute?).. Just not quite sure how ... code to see where the attribute data is culled from the ... see what turns out on screen?)..(kinda like your suggestion for ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... pixel data then 1 BYTE attribute then 8 BYTES pixel data ... and then 1 BYTE attribute etc. So the attribute colour comes after ... de,16472 ; D = 40h (screen) / E = 58h (attribute)
exx
attribute
pop bc
ld ...Salamander - 2 YS reviewsKonami's Salamander was reviewed in issue 2/88 of Your Sinclair. The rating: 4. Then in issue 12/88 it was reviewed again and scored 8(!). Why YS rev…
... done using the character-based screen display, and it certainly puts ... mix of nicely coloured (1x8 attribute) but jerky character-moving baddies ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... br /> SCRWTH equ 256 ; Screen width in pixels
SCRHGT ... />
call cls ; Clear screen
call draw_sprites ... Write 0 to screen
inc hl ; Next screen location
... br />
ld hl,22528 ; Attribute address
ld bc,768 ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
... br /> SCRWTH equ 256 ; Screen width in pixels
SCRHGT ... />
call cls ; Clear screen
call draw_sprites ... Write 0 to screen
inc hl ; Next screen location
... br />
ld hl,22528 ; Attribute address
ld bc,768 ...inverting graphics using basic?just curious if it could be done by poking screen memory ? and what's the structure. (foreground / background for each char ? ) reason I ask is I'd …
... could be done by poking screen memory ? and what's the ... /INK bits in the attribute by POKEing the screen area. It's ... serially after the screen data at 22528. The attribute is composed of ...inverting graphics using basic?just curious if it could be done by poking screen memory ? and what's the structure. (foreground / background for each char ? ) reason I ask is I'd …
... ;497220]The attribute bytes are stored serially after the screen data at ... 22528. The attribute is composed of ...inverting graphics using basic?just curious if it could be done by poking screen memory ? and what's the structure. (foreground / background for each char ? ) reason I ask is I'd …
... /INK bits in the attribute by POKEing the screen area. It's ... serially after the screen data at 22528. The attribute is composed of ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... to use 64-colours on screen at once you need to ... more than 16 colours on screen at once), and a couple ... modes (which include an 8x1 attribute mode, a 512x192 mono mode ... gets you 64 colours on screen, but even using only 24 ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... to use 64-colours on screen at once you need to ... more than 16 colours on screen at once), and a couple ... modes (which include an 8x1 attribute mode, a 512x192 mono mode ... gets you 64 colours on screen, but even using only 24 ...No ZX ZUMA?Hi guys, Lately my nephew and I argued a little that almost all new modern games are but remixed copy-cats and I could prove it (with reverses to 3D…
... amount of colours and the attribute system will just make that ... 't think there is sufficient screen resolution to do that justice ...No ZX ZUMA?Hi guys, Lately my nephew and I argued a little that almost all new modern games are but remixed copy-cats and I could prove it (with reverses to 3D…
... amount of colours and the attribute system will just make that ... 't think there is sufficient screen resolution to do that justice ...Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…
well with the loading screen I started by squiggling in ... the elements fit within the attribute squares, then kept working into ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... of the reason why the screen layout on the Speccy is ... , and the relationship between the attribute address and framebuffer address is ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... of the reason why the screen layout on the Speccy is ... , and the relationship between the attribute address and framebuffer address is ... (forgot its name) with similar screen layout.Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... .
Only better attribute resolution or multicolour attribute cells can help here ... column-by-column Vector-like screen layout is fastest and easiest ...What if the Government backed Sir CliveHere is a question I have always wondered about... What if the Government had backed Sir Clive back in the Eighties... That is, placed his computers …
... once you used a reasonable screen mode. [/QUOTE]
Not ... 's more to do with screen layout, BBC BASIC fit in ... usage is indeed the bitmap/attribute screen layout, you get a hi ... a 4 bit per pixel screen mode and uses masses of ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... just accepted it, colour/attribute clash fundamentally affected the ... attribute overlay system is a high-res (for the time) screen ... the screen. The tradeoff is the possibility of attribute clash. ... The ULA+ makes the screen look ...RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…
... effort because of the second screen on 128k Spectrums.[/QUOTE]
screen is currently being displayed.
attribute memory (dual ported RAM inside ... to the FPGA containing the screen preloaded into the dual port ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... possible to achieve an attribute clashless resolution on screen -- I have ... additional screen modes (double buffer, double resolution 512x192, higher attribute resolution ... 256x192 pixel, 32x192 attribute) by exploring ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... ) fixed 4 colours per entire screen, as in Amstrad
I ... talking about 4 colours per attribute cell submode, at the cost ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... single, flat/linear bitmap. Larger screen area to change -> more ... d have to update screen and/or attribute data for every pixel ... colors they translate into. Like attribute data, but more complex. In ... 'zero' ?mpact on overall screen data size. Palette size is ...Was the +3 a missed opportunity?I just wanted to gauge WOS opinion on this. Do people think that the +3 was a bit of disappointment that didn't really advance the hardware as much a…
... +3 that did away with attribute clash, but to make that ... required due to the larger screen memory?
