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How to speed up TZX loading (emu development)With many newer emulators there are options to do faster loading schemes, even for turbo-loader or protected loader blocks in TZX files. For example,…
... that for the ROM loader routine for sure, but it must ... -
When do you optimise?I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that?
I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that? -
Checksum RoutinesHi there everybody, Does anyone have an 'off the shelf' assembler routine for generating checksums? Thanks Jim
Hi there everybody,
Does anyone have an 'off the shelf' assembler routine for generating checksums?
Thanks
Jim -
Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
... 've written a simple sprite routine that draws a 8x8 pixel ... sprite? Currently, I have no routine. It leaves a nice pattern ... -
Crash "spin off" - LMHi, Anyone remember this magazine which (sadly) only lasted a few issues? I seem to remember that it was a Newsfield publication and it seemed to sh…
Hi,
Anyone remember this magazine which (sadly) only lasted a few issues? I seem to remember that it was a Newsfield publication and it seemed to share some similarities in layout, artwork and 'character' with Crash. It was a good read, too.< ... -
Basic Programming Routine Needed . . . HELP!Hello there, I though i would try and redo an old classic (pacman) in basic . . . BUT . . . I can't remember how to write the code to see what chara…
Hello there,
I though i would try and redo an old classic (pacman) in basic . . .
BUT . . .
I can't remember how to write the code to see what character is next to my pacman . . . i.e. if there is a dot - then pacman eats it, if there is ... -
Calling ROM routinesFirstly, sorry if this is the wrong forum to post this in, but I wasn?t quite sure under which heading is best fitted. I?m trying to figure out how…
... to invoke the LOOKVAR ROM routine to discover where a variable ... -
Perfect Dark (N64) - best FPS ever?Since we're talking about Half-Life 2 on this board, I thought I'd mention Perfect Dark, the best first person shooter ever. Don't believe me? Hardly…
... ,
- the ability to pause the game and select a ... ),
- the ability to pause multiplayer and be given a ... -
Self Relocating CodeOn page 47 of [url]http://www.tim-mann.org/trs80/doc/ldosq1-3.txt[/url] is an article about relocating code. The documented routine that performs the…
On page 47 of [url]http://www.tim-mann.org/trs80/doc/ldosq1-3.txt[/url] is an article about relocating code.
The documented routine that performs the relocation looks very, very, similar to that used in HiSoft products... -
Pimp my code...Erm, this is just the result of a mental exercise - I wanted to repeatedly display a UDG but decided against using a ROM routine and UDGs! Any sugges…
... decided against using a ROM routine and UDGs!
Any suggestions ... -
Screen LoaderCouple days ago i find very interesting loader routine in ex Yugoslavia magazine "Svet Kompjutera" from january 1987. Authors of article, calls this …
... i find very interesting loader routine in ex Yugoslavia magazine "Svet ... /> Authors of article, calls this routine "bit-loader" and she load ... screen must be at 49152, routine start at 65024 and she ... and here is link and routine listing:
[url]http ... -
Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…
... +4) increases until it reaches pause (ix+5)
; once it ... Direction
; 4 X Direction Pause Counter
; 5 X Direction ... Point
; 6 Y Direction Pause Counter
; 7 Y Direction ... -
Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…
... replace the Basic style sub-routine that relied on easily corruptible ... -
Java emulatorHi Folks, I'm looking for a Java emulator with a difference. I'd like to be able to play rzx files (possibly on a loop) No controls (maybe pause, p…
... loop)
No controls (maybe pause, play, stop)
No options ... -
Print routine for BASIC (or BASin)For anyone interested there's a crappy binary here to print characters from BASIC at pixel positions. Import the binary at 60000, USR 60000 to initia…
For anyone interested there's a crappy binary here to print characters from BASIC at pixel positions. Import the binary at 60000, USR 60000 to initialise the stream, then PRINT #4; AT y,x; etc. Probably the odd bug here and there but I really can't be ... -
Those phone in quiz shows again...I was flicking through the telly while I was laying in bed last night and on channel 5 was one of those phone quiz things that are stinking up the l;…
... a time "a (long pause) e (long pause) etc..." all the while ... -
tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…
I wrote a small routine to rotate right a whole ... is my third ever assembly routine, so I guess it utterly ... -
info needed from Pop.Comp.Weekly 14&21 Nov'85Does anyone have the Popular Computing Weekly issues for 14th & 21st November 1985? There should be a listing for a Spectrum turbo load/save routine …
... a Spectrum turbo load/save routine on pages 21/22 of ... -
Trivial Pursuit -- incomplete TZXs?Hope I've posted this in the right place... I've noticed that the following Trivial Pursuit TZXs seem to be missing the question sets: [url]ftp://f…
... have had the question load routine hacked to use the standard ... -
Patch for Platform Game DesignerTwo minor bugs in the block designer have recently come to light in the Linear Game Designer, version 1.2. It appears that blocks 0 - 127 appear cor…
... second bug exists in the routine which checks that you are ... -
Wanted: z80 asm routines...for the Sam. This call goes out to Colin and others who know how it should be done. If you look on the Sam C disk you can see the implementation…
Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... on ( and obviously the 'screen_to_sdl' routine that gets called every time ...Who knows how to program a "pathfinder"?Hi all. I like to play games like "Colour Lines" and I think, I will create a version of this game for the SAM Coupe. It looks easy - until this "dam…
... "damn" thing of a pathfinder routine, which finds a path from ... closed.
Has anyone a routine or tip in Assembler for ...Syntax checkingI want to capture the command for i.e. microdrive in a standard ROM. The editor will give an error, but how can I redirect to my own routine? I will …
... I redirect to my own routine?
I will use an ... have looked in the editor routine at 0f2c, but I can ...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. …
... CHANNELS
; -------------
;
; This routine ensures that BASIC and channels ... /> jp $1655 ; exit via make_room routine
; ------------------------------------------------------------------------------
; DATA follows ...TrampsOne thing that annoys the hell out of me is tramps -- you can't escape the bastards, hanging around everywhere and reckoning they've got a God-given …
... 's College Hospital for a routine appointment, I was accosted by ...