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I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…
... how the PIXEL-ADD rom routine works.
My code ... , I'm assuming the rom routine at $22AA will convert the ... -
Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…
... trying to create an interrupt routine for playing AY music in ... />
I have a music routine in bank 6 that plays ... -
A sped up pixel-shift routine for 1-byte–wide spritesHere’s an optimized (for speed) real-time sprite shifting routine for sprites that are one byte wide. It uses no memory variables for storage of inte…
... speed) real-time sprite shifting routine for sprites that are one ... sets again.
(The routine is shared between two sprites ... -
"ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... already written a screen-drawing routine for a "ZX81 Brain" version ... excessive to define an array - DIM z(90) - with 90 values ... -
Interupt service routinehas anyone set up a interupt service routing with pasmo? this one I tried resets the speccy EDIt- I placed the code after the END directive, I fi…
... 65024
; pointers To interrupt routine.
defb 200
defb ... -
SpecBAS 0.900 ReleasedAgainst my better judgement, here's 0.900. It's got lots and lots new, but mostly the new shiny is the editor. You can indent your code, you can e…
... curve algorithm for the CURVE routine - demo "ultraviolet" looks a lot ... non-square editor fonts
DIM SPLIT can now split on ... to the source string
DIM works with a list of ... -
im looking for a horizontal scroll routinehi, im looking for a horizontal scroll routine. i read somewhere that you can do it with at 'to' statement, somewhere in a print routine. althoug…
... looking for a horizontal scroll routine. i read somewhere that you ... ' statement, somewhere in a print routine. although i am open to ... -
High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …
... general purpose high score table routine. It stores 5 scores and ... /> RET ; exits the routine
PRINTNUM: ; routine by J. Cauldwell
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... /> [code]
;Redefine Keys routine
;By Ast A. Moore ... call 8859 ;inside ROM routine BORDER ($2294)
call ...
;A crude debounce routine to prevent
;registering ... call $3b5 ;ROM beeper routine
pop ix ;restore ...A SAVE routine to reduce Microdrive loading timesHello! Please i'd like to know if there is a SAVE routine written to reduce the zx microdrives loading times.
Hello!
Please i'd like to know if there is a SAVE routine written to reduce the zx microdrives loading times.Machine code routine neededHello! Please i'm looking for a short routine that can write the same value in a range of continous memory locations. For example, to write 255 val…
Hello!
Please i'm looking for a short routine that can write the same value in a range of continous memory locations.
For example, to write 255 value from location 40000 to 41000.
Many thanks in advance.looking for a vertical scrolling routinein basic or like the standard scroll? routine but the other way round with the scroll? removed (this would have to be in code). ive tried a couple of…
... or like the standard scroll? routine but the other way round ...Random-Access to Microdrive FileI am working on a BASIC program to backup a microdrive text-file to standard tape array-file. To backup a text-file from one microdrive to a secon…
... simply the SAVE to tape routine.
The following program ... LET b=0
295 DIM b$(32*1024)
300 ... -"+n$ DATA b$()
1520 DIM b$(32*1024)
1530 ...im looking for a machine code star-field routineim looking for a machine code star-field routine. preferably with mnemonics.
im looking for a machine code star-field routine. preferably with mnemonics.Passing parameter from BASIC to assembler routineWas there a "clean" way of passing parameter(s) from a BASIC program to an assembler routine? Something like parameterising RANDOMIZE USR call? I fac…
... BASIC program to an assembler routine? Something like parameterising RANDOMIZE USR ...NMI Routine and Restarts in a new 128K ROMI'm presently engaged in creating AGD 5 with the intention of making it a pair of 16K ROMs for the 128K/+2. I'm fairly sure that the vast majority o…
... ROM 0 as the delay routine in RST 0 overran. Beyond ...Pocket Clive - 2 QuestionsHello, I've just started using Pocket Clive on my iPaq pocket PC, excellent emulator BTW. 1. I have just wrote a small BASIC program to randomly pi…
... small and incredibly simple routine which solves the lack ... /> Q. How does the randomize routine work?
A. ... Spectrum ROM Disassembly shows the routine.
If the ... LET b=6
40 DIM a(n)
50 ... b=6
70 DIM a(n)
80 ...Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…
... the routine to display the selection window.
Considering DIM Z ...Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …
... to do it using a routine that printed the maze using ... work:
[code]
DIM m(INT ((LEN m$)/8 ... />
[quote]
-Create a routine to read data from the ...Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …
... to do it using a routine that printed the maze using ... it.
-Create a routine to read data from the ... />
zx bruno,
A DIM m(88 ) will not consume ...Game OptimisationBelow is a section of code Im using for movement enermy display and collision detect. What happens is that you move the sight with ,.qa and space do…
... : LET c=0
25 DIM d(10,3)
30 ... =redraw flag
470 REM dim d(x,3)=enermy array ... 4 held an array) the routine slows to a crawl.
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... ...
[code]
10 Dim m$(256):let m$="Hello ... />
memcpy() is a library routine written in asm that uses ... sense to use a library routine you should.
The ... I would redo the d_Print() routine to print a maximum of ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... drawing routine to something like this:
[CODE]
DIM c ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... use a one-dimensional array DIM t(62) to store the ... the same color, using a routine like this:
[CODE ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... save any positions but this routine will run a little faster ...New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... 'm impressed by the road routine, well done! Forgive my ignorance ... =Einar Saukas;249782]
1 DIM a$(5):
. . .
LET ...New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... 'm impressed by the road routine, well done! Forgive my ignorance ... =Einar Saukas;249782]
1 DIM a$(5):
. . .
LET ... a turn right.
The DIM command will always make your ... piece autmatically due to the DIM A$(5) which will always ...New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... />
[QUOTE=Digital Prawn;251883]DIM m(2e3) would save another ... it requires restructuring the main routine quite a lot to do ... /> [CODE]
1 RANDOMIZE :
DIM m(2e3):
LET m ...
