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Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …
... problem with the pixel address rom routine at 8874.
Going ... by the ZXSpectrum Rom Dissassembly book, I'm trying ... be holding 128 after the routine is run?
Tobo -
+3 BREAK-key in FUSEI'm trying to locate the +3 BREAK key (for use in D.I.C.E) in the FUSE emulator. However, reading the docs and reading the source does not immediate…
... .I.C.E. uses the ROM routine for key scanning and requires that both ... . also uses CAPS SHIFT (alone) for something else. A bit fiddling ... Kendall;358136]
Bodge a key into the source. See the ... -
Screen$ command, ROM routineHi All, Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works or the spee…
... /> Does anyone know which ROM routine to call for the Screen$ command (and ... what's what in the ROM disassemblies I've read (any ... -
Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... /> ;
; This routine will define keys for UP/DOWN/LEFT/RIGHT ... run the redefine routine *or* check for any of the ... />
; ----------------------------------------------
; ROUTINE: get_defined_key
;
; check for key being pressed
can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
i have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that would be great
TIA
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[url]http:// ... Amiga and Amiga Format CD-ROM's. Shipment to UK mainland ...Routine for Currah speechI'm currently writing a routine for the Currah that will provide speech during a game. A timer is set to initiate the speech every 50 cycles of the …
I'm currently writing a routine for the Currah that will provide ...Asm routine for AY playback?Hi, is possible to create and "name" an asm routine for playing some ay data? If yes, how? Example: Ok , I've finished a sound tracker song, now I n…
... and "name" an asm routine for playing some ay data?< ... or without the play routine? How does it work ... I'm only doing hypothesis ) for AY chip.
for 48K models?
routine and make it play ...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…
... misunderstanding how the PIXEL-ADD rom routine works.
My code ... that, I'm assuming the rom routine at $22AA will convert the ...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…
... an optimized (for speed) real-time sprite shifting routine for sprites that ... It uses no memory variables for storage of intermediate data, ... again.
(The routine is shared between two sprites ... position (0-7) within cell for later
...Dead Space - ROM version for download (free)You can download Dead Space ROM version, for Interface II, for free now: [url="http://www.bytemaniacos.com/?page_id=3437"]http://www.bytemaniacos.co…
You can download Dead Space ROM version, for Interface II, for free now:
Start Tape, Press any key...Hi, I'd like be able to save (program or data or code) using the save "whatever" command, but I want it to start recording immediately, rather than …
... . Saving without the message and key press is something that has ... the back of my mind for years...decade-and-a-bit ... 'll be looking into the ROM routine for save / load when I have ... is that against the TOS for the ROM?). I'm mostly just ...Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... the time you call the ROM routine for printing a string, a ... method you want to use for printing your string: a ... a terminator byte or the ROM routine at $203c.
... it works (it does for me). Then take it ... good, now i double-click my tap to auto load ...Pixel LimitIF Y3<192 THEN : LET x2=INT (128+X*A*SIN A): LET y2=INT (Y3): DRAW INK
... point 0,0.
The ROM routine for POINT still tests with the ...Pixel LimitIF Y3<192 THEN : LET x2=INT (128+X*A*SIN A): LET y2=INT (Y3): DRAW INK
... point 0,0.
The ROM routine for POINT still tests with the ... pokes I saw being used for program protection.How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... made. That's the ROM routine for scanning the keyboard and updating ... an interrupt service routine (such as the ROM's at address ... that the interrupts does for example keyboard scanning, but ... The ROM code polls the keyboard in the interrupt routine. The ...Print usr 1300??????
you're calling part of the ROM routine for saving data.logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…
... have considered hijacking the BASIC rom routine for something quite like that.. Iv ... that make use of the ROM calculator and would have found ... putting this routine in my assembly library of routines for future use ...Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …
... can use another ROM routine for the score does this for you (again all ...Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …
... can use another ROM routine for the score does this for you (again all ... ,67,79,82,69 ;code for 'score'
GameLoop
Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…
... ROM routines - one table for each version of ROM (yes, 3 versions of ROM ... second table with the appropriate ROM routine:
[CODE] org $87ae ... $9c22 to call the appropriate ROM routine for the fitted Interface 1 - a ...CODE SCREEN$ in MCIs there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in bas…
Anyone know where I would find the ROM routine for that function and how would I go about using it?Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... />
I would suspect the rom routine for draw / circle are not limited ...Compression comparisonsI did some comparisons of different compression methods. To make this relevant to zx spectrum, I first gathered a corpus of relevant data: 6660 .TAP …
... worth the effort.. slightly customized rom routine (for visual effects) might be.Compression comparisonsI did some comparisons of different compression methods. To make this relevant to zx spectrum, I first gathered a corpus of relevant data: 6660 .TAP …
... worth the effort.. slightly customized rom routine (for visual effects) might be.[/quote ... schemes, which has been down for a long time:
... developed a custom turbo loader for my forthcoming game Seto ... 85% more than the standard ROM loader - 1500 bps if ...Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... the time you call the ROM routine for printing a string, a few ... method you want to use for printing your string: a looped ... a terminator byte or the ROM routine at $203c.
I ... if it works (it does for me). Then take it from ...WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…
... 3C06 = 15366 dez = DOS / ROM ON
;TR-DOS v4 ... needs an additional PUSH HL for RET
PUSH HL ... LD C,0 ;Set DOS Routine 0 (INIT/RESET DOS)< ... copies the standard Spectrum 48k ROM to adress 40000
ROM (because it´s not ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... list of characters and UDGs for double click entry into your code ... .
Editor integration - the ROM has been patched and messed ... a better runtime INPUT line routine with full clipboard and ...
TZX/TAP support - only for ROM loaders, but now BASin can ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... list of characters and UDGs for double click entry into your code ... .
Editor integration - the ROM has been patched and messed ... a better runtime INPUT line routine with full clipboard and ...
TZX/TAP support - only for ROM loaders, but now BASin can ...
