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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
CodenameV -
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…
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Does anyone know which ROM routine to call for the Screen ... what's what in the ROM disassemblies I've read (any ... -
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 -
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 ... -
+3 rom disk load/save routines?I`ve been looking everywhere for some documented listing of the +3 rom load/save routines. I want to convert some games to use disk instead of tape.…
... documented listing of the +3 rom load/save routines.
I ... - The Adventure, it has a load/save game to tape, which ... disk instead of the tape rom load/save would suffice.
Odd keyboard behaviour due to a single bit failure in +3 ROMI've just fixed a spanish +3, which, among normal issues (drive belt missing), presented a very strange one: the keyboard autorrepeated without a del…
... the ROM is malfunctioning specifically while executing the standard keyboard routine? It ... />
I changed the ROM chips (mask ROM's manufactured by AMI ... more differences, so this ROM could load games and so on. In ...Do a load "file" with ASMFollowing the idea to build a menu with asm, now i need to know how to do a load "file". I can use the Rom routine but i am not sure if the rom rout…
... to do a load "file". I can use the Rom routine but i ... am not sure if the rom routine accept the filename. I mean ... the rom routine that is exposed in the documents is the classic load ... but without to use the Rom routine. But with or without is ...What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... snippet I can use to load a (headerless or not) block ... in my C games to load further levels from tape.
ROM routine (It would suffice, any pointers ... I'm asking for a routine :)
No need for ...LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…
... written the following MC routine that fits into a ... to call the ROM's LOAD "" CODE routine, nothing fancy headerless ... a ; quick way to load accumulator with zero.
... colours.
call 3503 ; ROM routine - clears screen, opens chan ...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…
... 0
call 8859 ;inside ROM routine BORDER ($2294)
call ... ld e,(ix+2) ;load E with INK color
ld (23695),a ;load ATTR_T with the new attributes ... to fetch key code and load it into DE
...
ld a,e ;load A with E to compare ...TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…
Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM?
[ This Message was edited by: klingler on 2004-07-08 15:19 ]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…
... how to invoke the LOOKVAR ROM routine to discover where a variable ... don?t cover invocation of ROM routines at all.
Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …
... the routines on the spectrum ROM ?
Ad for the ... Example i was watching the Rom routine called [B]PLOT-SUB[/B ... pop bc
This routine is the same that in ... B]. But what is the routine to handle a DRAW ?< ... that are on the Rom just to use them.< ...How works the Line-Draw ROM routine ?The 'complete spectrum rom dissasembly.pdf' show info related to the draw rom subroutine. The Line-Draw require two sets of parameters: X,Y coordinat…
... info related to the draw rom subroutine. The Line-Draw require ...Pixel Pimp, graphics utilityHi All, [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/pixelpimp.gif[/IMG][IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes…
... problems trying to use the ROM save/load routine, in the end I ...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 …
... how do you utilize the ROM routine to print characters, I think ...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…
... a ; quick way to load accumulator with zero.
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call 3503 ; ROM routine - clears screen, opens chan 2 ... hl,21+15*256 ; load hl pair with starting coords ... position,
; this routine is called prior to ...ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…
Here is routine for fast detection of zx rom / computer model.
routine for detect zx rom type from 48basic rom.
I ... br /> Routine return register BC=0-7 for ZX rom type or ... B=255 for unknown rom. Routine is small, but detection will ...why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... xor a ; quick way to load accumulator with zero.
call ... the game.
call 3503 ; ROM routine - clears screen, opens chan 2 ... ld hl,21+15*256 ; load hl pair with starting coords ... gunbase position,
; this routine is called prior to display ...this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... xor a ; quick way to load accumulator with zero.
call ... game.
call 3503 ; ROM routine - clears screen, opens chan 2 ... .
ld hl,3861 ; load hl pair with starting coords ... gunbase position,
; this routine is called prior to display ...ZX-2-PC Interface : Is it dead ???Certainly not, but I had some problems getting the EPROM-reader constant. In my former threat I stated that it worked, well, it read ROM-values but n…
... parallelport with 8 bits load and 4 bits save ... at #0556 to load a block of bytes ... If you use the normal ROM-routine in your program, the ... JP #556 ; JUMP to load in (EP)ROM
[/code]
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Will load from HARDDISK ...TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... incompatibility with Spectrum software. ROM routines were in different places ... that matched the Spectrum ROM were in different memory ... function dispatcher to execute a ROM routine or function. Other improvements ... you are trying to load something and it's ...Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…
... wrote:
RUN goes to ROM-routine at #1EAC,
so ... needed. Thanks! I want to load basic prog. together with mc ...TZX compatibility issuesI seem to have a problem with using TZX files on different emulators. Specifically, files Saved As TZX from emulator. I better explain: I have a fe…
... programs.
The rom routine can load tapes played back at 130 ...TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…
... . I have altered the ROM-routines at #556 (LOAD) and #4C2 (save ... CD-ROM.
It takes about 7 seconds to load a ... in TAP-file using the ROM-routine to load (like OUTRUN) run perfectly ... hold an altered ZX81 ROM with capability to load /save from PC ...Interesting Custom LoadersHi everyone, I was just thinking about custom loaders on the spectrum and I thought I'd ask you all what you thought was the best one. I'd have to …
... made a copy of the ROM routine, then changed the memory locations ... was to modify the ROM save routine; change the timings to ... can bypass the normal ROM save routine to create a file ... will then attempt to load using a custom load routine). If so, how ...Setting the borderCan someone tell me best way to set the border to a given colour using machine code. Its there an operating system call or can I load up a memory loc…
... routine in the ROM.
To set the permanent border colour load ... the accumulator with the colour you require and call the ROM routine ...
