-
New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... the pointer to the screen from my screen address table (not using ... back. if you want avoid screen address arithmetic then your code ... to read graphics and compute next line adress you would get slightly ... -
Where to start?..Hello, First off, sorry if this is in the wrong and sorry if the questions I'm about to ask have been asked and answered numerous time! Little back…
... ]
I --> auto line numbering
10 org 32768 ... To get out of auto line numbering, press CAPS+1 ... to clear the line and enter. Then enter ... cursor move to the next line with no errors resulting. ... an assembly program in memory at the default address ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... to screen (7)
inc h ; Point to next line down ... (4)
inc de ; Point to next byte ... ld hl,position_var ; Point to next screen position before POPing HL
next tle line
nop
< ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
[QUOTE=Zoltar;566009]Thanks for the comments dudes. It's my 4th go at it, with each version getting a liitle faster each time but for now, it's as fast as I think it's possible to do it. I anybody knows of a faster way, please tell me now lol.[/QUOTE]< ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... you can keep the screen address directly in the ... ; Write to screen
inc d ; Point to next line down
inc l ; Point to next byte ... Restore DE and point to next print position
inc ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... can keep the screen address directly in ... Write to screen
inc d ; Point to next line down< ... br /> inc l ; Point to next ...
inc e ; Next byte
djnz tile_line_loop ... -
Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …
... is acronym for Random Access Memory - and the video RAM fully ... game/utility completely placed in screen memory including stack. how would you ... is not RAM but virtual memory is not a complex topic ... you dont have any single line of working code. devil is ... -
128k multicolour graphics...ok over the years I've been a fan of multicolour graphics on zx spectrum, an I clearly get that on a 48k the (8x1@2)multicolour limit stands at 18cha…
... the data to successive memory addresses. If you want ... blocks on each horizontal line, each an even number ... distinct blocks on a line, but it'd be ... edges of the screen, is each line has slightly different ... as long as the screen memory itself and custom-written. ... -
128k multicolour graphics...ok over the years I've been a fan of multicolour graphics on zx spectrum, an I clearly get that on a 48k the (8x1@2)multicolour limit stands at 18cha…
... to change can add to next line's maximum multicolor column count ... than the next row's or (b) you implement 128K screen switching ... to synchronise the per-line changes. And ... -
Sinclair User tapestry screenshots?!I'm reading SU issue 100 (my actual copy) and I notice a few screenshots that look very strange. First there is (links show WoS page scans) [URL="htt…
... like the bitmap of the screen memory has been dumped to a ... a grab of 6K of screen memory, it represents a new low ... it should look, and the line in the review that says ... on the top of the screen[/I]", when they clearly aren ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... around them.
As memory, it uses just two 4464 ... know what? All memory is uncontended. Yes, even the screen memory.
line of pixels.
There ... -
BackgroundDoes anyone know how i would create a background similar to [URL=http://imageshack.us/photo/my-images/42/backgroundmockup.png/][IMG]http://img42.ima…
... ]LD HL,22528 ; start of screen address[/QUOTE]
No. Start ... sure move loop counter in screen memory[/QUOTE]
Write attribute byte ... characters of black paper per line.
[QUOTE]LD C,0 ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... each expression on the command line and put them on the ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... each expression on the command line and put them on the ... -
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... under what circumstances updating the screen line by line bottom up would reduce ... drawn all over the screen. Whereas a line order update as mentioned ... a sprite being drawn, the next sprite will be above it ... won't appear until the next frame. A top down redraw ... -
Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …
... br /> push de ;save screen address
call get_char ... screen address
call p_char
inc ix ;next ascii ... screen
inc hl ;next graphic byte
inc d ;next line ... down
djnz pclp
pop de ;get screen ... -
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... to OUT 254 after every line, so I can load random ... be written to the screen on each line.
With my ... actual looping code to save memory. Of course, this eats into ... during the top border or line-by-line, or a bit of ... -
Zodiac on the OricI played my first game on an Oric at the weekend. I was struck by the slow speed of the parser. It took about 6 to 8 seconds between typing somethin…
... and look up how the screen memory is laid out in the ... got a system of in-line attributes rather akin to a ... -
New software screenmode: aSmpI was planning to release this tool at Forever XIII, but they didn't accept it, this is my 30th year activity, my most ambitious work on zx spectrum …
... are not in the same line. Our hardware limit is 18 ... applies to single raster line. in the next line, you can move this ... , they can be anywhere on screen, as long as you are ... -
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... is checked for each line of the screen draw, under normal conditions ... it draws the line but before checking the next line down, hence 2 ... with it for the whole screen width, especially as loading different ... -
Screen2StringFurther to writing that BASIC one-liner to redirect CAT to a string I thought that I'd do a general redirection routine for anything which normally p…
... of being displayed on the screen. It just changes the channel ... cassette being listed on the screen they would be saved in ... tape and continue with the next line in the program. I've ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... always exactly 7 loops per line of screen I want to skip ... to the top of the screen, and goes until the buffer ... carries on copying until the screen is done.
(2 ... address of the next line. And clearly the last line points back to ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... 32 would get you to next line and shifting 5 times left ... to random line.
2) In addition ... copy from backbuffer to the screen could only copy affected rectangle ... -
Rodland in colourAs promised (some time ago already ;) ), here is my hack attempt to add some colour to Rodland : [URL=http://www.image-share.com/ipng-1680-98.html][…
... of a tile, either in screen memory starting from 16384
; ... LD (HL),A ;write top line attribute
INC L
INC DE ;get bottom line color
LD A,(DE ... /> LD (HL),A ;write bottom line attribute
INC L
Assembly game programming on ZX how-to?Hi. I'm planning to build and release new software for the Speccy but I'm pretty lame as to handle its hardware despite a good mastery of Z80 assembl…
... /> In Spectrum, you have screen memory. You may draw sprites (i ... copy the buffer content to screen memory.
The ... memory differently than screen memory so bytes making a pixel line ... the bytes of upper line - unlike in screen memory. Of course, ...Mini scroll routineI'm looking for a routine that scrolls a small section of the screen downwards and replaces it with nothing, 2 x 2 charcter blocks to be precise, to …
... penultimate line and the looping contents of B for different screen sizes ... /> ;
nextlineup ;points hl at next line up in display file. Modified ... something similar but uses a screen address table and manipulates the ...UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…
... and writes them to screen memory. It's a bit ... row of the pixel screen. The second one, ... later.
Next it gets the address of ... addition). This gives you the screen address in DE.
... 1
inc d ;next byte of screen, +256
djnz ...
