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Interview with VERONIKA MEGLER ("The Hobbit" programmer)This interview with Veronika Megler (The Hobbit) has been published by elmundodelspectrum.com in Spanish, I copy it here for you all in its original …
... routine and his code would draw the picture.
[I ... -
Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
... /> #pragma output STACKPTR=48450 // place stack at 48450 at startup
20KWell here it is the 20000th post, a monumental event indeed, even if 18000 of them are complete drivel :D Should I be proud? Or should I be ashamed…
... Saukas, csmith, AndyC, joefish, Jumping Stack, Shaun. Bebbington, ccowley, Badbeard, festershinetop ...Shadow registers.I assume it's faster to transfer the registers to the shadow registers rather than using the stack? Let's say that I want to temporarily preserve the…
... registers rather than using the stack? Let's say that I ...28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... (four PUSHes), then rearranges the stack pointer to point at the ...3 games from Mitchel Software not listed in the archiveThese 2 games: [url]http://www.mitchellsoftware.110mb.com/[/url] ("Games" section). Gumball guess DST: Deep Space Trading are not in the archive. I…
... .
Also "Turning moment calculator" is missing in WoS (can ...BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... a paint program lets you draw graphics in the top 24 ...Help changing TR4 and TR5Hi all! Please, help me! :) I think I'm not understanding the correct pins of TR4/TR5 and the transistors. So, if anyone know the correct pins, help …
Matching calls and returnsHi all, A pretty fundamental question here that I probably should have sorted by now. I've noticed how much the stack has built out in my current g…
... 've noticed how much the stack has built out in my ... you lose a life the stack builds by a word, (and ... happy to clean up the stack as they go?Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... to the use of the stack, the screen is drawn ... ; save all registers and the stack pointer
push bc
stack available)
ld (endcall), hl ... />
ld sp, (sp_cache) ; resotre stack pointer and all registers
Shaded Desktop...Hi Folks, As part of some BASin testing I thought I would create a little program that creates a shaded desktop. In this case it goes from solid bl…
Un-named AGD 3 gameI've been playing about with (and learning a lot about) Mr. Cauldwells excellent AGD 3.0 today (being off work with shot knees has given me a lot of …
... - I find it easier to draw there then redraw in AGD ...Sprite Design-Graph Paper?I have a question which comes about after my little adventure earlier today:- As i have quite a few speccy projects in progress at the moment I have …
... I have the need to draw sprites using graph paper,i ...number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…
... method of manipulating the machine stack to get USR to return ...What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
What's best for backing up home data?What's best for backing up home data? I'm not talking about anything too important (if I even had anything like that I'd use multiple DVDs, with some…
... minus side, sorting through a stack of DVD-Rs for the ...EMUZLOADER errorI've been sent some program files in EMUZLOADER format. One won't load as the unpacking doesn't stop when it reaches the top of the stack at $408F bu…
... reaches the top of the stack at $408F but attempts to ... loader code resides, overwrites the stack and part of the code ...Cricket. Duckworth/Lewis calculator.I'd appreciate it if anyone here who enjoys cricket, and ideally is also familiar with the rules of one-day matches takes a look at a little program …
I'd appreciate it if anyone here who enjoys cricket, and ideally is also familiar with the rules of one-day matches takes a look at a little program I've knocked up which is essentially a much enhanced version based on the source-code of somebody else's ...Cricket: Duckworth/Lewis CalculatorIdeal for any one-day cricket match which uses the Duckworth/Lewis method to calculate the target score if there is an interruption to play. The alg…
Ideal for any one-day cricket match which uses the Duckworth/Lewis method to calculate the target score if there is an interruption to play.
The algorithms in it are based on a reverse-engineered version of the most recent official ICC WinCODA ...Isometric games - How to ?I understand how to render isometric scene by most naive way - starting distant tiles and continuing by drawing tiles closer to camera. But that is s…
... is slow way how to draw screen. How games like Head ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... few routines available to "manually" draw/change/erase multicolor tiles instantly ... that don't need to draw tiles at arbitrary positions can ...SpecBAS 0.747 Now available!Hiya folks - it's update time again! SpecBAS has had a load of new fixes, as well as some new additions! Firstly, as you all wanted it, SpecBAS can…
... /> Now all graphics commands (PLOT, DRAW, CIRCLE etc) will use coordinates ...Saving space using procedural graphicsAfter spending several hours playing around with various packers to squash the Alien8 test screen$ it occured to me that maybe bigger space savings c…
... a programmed procedural method to draw the screen. Various key areas ...T-States?Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is? At the moment for me, tstates are a useful gauge …
... it to the time to draw a frame for example. The ...SpecBAS 0.749 Now available!Ey oop, you lot! A new SpecBAS has now been uploaded to the usual place - [url]http://www.specbas.co.uk/[/url] For your delight and delectation. …
... - use in a PRINT/PLOT/DRAW etc statement as you would ... a prefix - such as PLOT, DRAW etc. Clipping only applies to ...Developing apps for ZX Spectrum with SDCCDue to troubles with makebin utility which always starts coversion at memory address 0x0000 and can only produce binaries < 32KB, it can't be used to…
... ; store SP
ld sp,#stack
call gsinit ; init static ... of operating system stack
.ds 1024
stack:
.area _HEAP ...BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... and let the engine automatically draw & animate everything in multicolor ... ;
[*]Adjust their coordinates;
[*]Draw them all again.[/LIST]
BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
... of "erase" (routine BIFROST_fillTileAttrH) or "draw" (routine BIFROST_drawTileH) there will be ... /> }
}
// move and draw tiles
for (f = 0 ...
