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Machine code...or whatever it's calledTwo questions 1) can anyone recommend a good (and ideally, simpleish) book/resource which would be a good starting point on trying to learn this stu…
... random number routine that someone suggested to you earlier, and test it ... -
Which Speccy game had best border effectsIn truth, I'm just trying to remember a game from my youth, and the amazing border effect during pause is the only thing I can clearly recall about i…
... -State delay before your routine begins. You can factor ... is very hard to test. Get it wrong though ... accuracy. See the CODETIME routine in my [URL="http:// ... timingtest-0.2.zip"]timing test[/URL] which I have ... to use the DELAY routine to wait the necessary ... -
Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…
... 's really just about calling a single routine once every 50th of ... -
New WIP from Kabuto Factory: A.R.C.O.S.Hi everybody! After a long time in silence (...you know, life and its commitments...), we're coming back with new WIP for Speccy: A.R.C.O.S., a new …
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I'm calling a machine code routine from Basic (you can ... />
I'm putting this routine at 64000 adress. It's ... -
New WIP from Kabuto Factory: A.R.C.O.S.Hi everybody! After a long time in silence (...you know, life and its commitments...), we're coming back with new WIP for Speccy: A.R.C.O.S., a new …
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I'm calling a machine code routine from Basic (you can ... />
I'm putting this routine at 64000 adress. It's ... -
Precisely timed loops in assemblyI'm looking for a way to make my code stop until the raster has reached the lower screen border (right after having drawn the last pixel line). I und…
... /timingtest-0.2.zip"]timing test[/URL] program. There is quite ... learn in there, like the routine for waiting exactly the specified ... -
Reading interface 2 using the IN commandHow do you read using the IN command from BASIC? You can read multiple keys at once, but I cant remember the values...
... row and then create a routine that handles that variable. For ... -
BASIC compilerI'm looking for a basic compiler that actually works, tried all the ones on the WOS archive and none of them seem to work... I'm only wanting to co…
... in tommygun, and compile and test the resulting tzx file in ... just added a 64x32 font routine to the ZX Basic Library ... -
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... /> [*] Re-implement the tile rendering routine in a way that Assembly ... to provide a quick erase routine like [I]Buzzsaw+[/I] uses ... previous post the idea of calling HALT first, and I had ... " section when I release the routine to render tiles directly.
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... can jump to your own routine, do whatever you want, then ... instead to any music player routine of your choice, and it ... time (even more exact that calling it directly from the interrupt ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... afterwards, this would require calling an initialization routine that BIFROST* does not ... will add a new sub-routine called [I]BIFROSTresetTileImages(addr as ...LZ77 en/decodingI've written an LZ77 en/decoding routine as I couldn't find one around for the Spectrum. Initially I'm just doing it in BASIC to get the logic right.…
... . So I made a new test file from the text of ... ) to indicate to the unpack routine that the next "type" bytes ...Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…
... crashes? and How could I test the code if I change ... are short routines you are calling then it should be fine ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... the parenthesis from the sub-routine invocation from inside the program ... this case, I noticed that calling "BIFROSTsetTile(r, c, 255)" produces ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... the parenthesis from the sub-routine invocation from inside the program ... this case, I noticed that calling "BIFROSTsetTile(r, c, 255)" produces ...Specbas Photo'sOK here's a place to show us some screen grabs of Specbas programs Here are some of my Invaders screen grabs [IMG]http://i699.photobucket.com/album…
... write some example code to test it with ;-)
D ... have speeded up the screen routine by Poke$'ing the graphics ...LZ77 en/decodingI've written an LZ77 en/decoding routine as I couldn't find one around for the Spectrum. Initially I'm just doing it in BASIC to get the logic right.…
... analysis of word groupings in test files (that's 16-bit ... a BASIC version of a routine to generate a 256 entry ...Another BUG play tapes, in ALL EMULATORs when press STOP1 FOR n=1 TO 20 : PRINT IN 254 : NEXT n : PRINT AT 0,0 : GOTO 1 RUN Type this simple code, load a TZX, pres PLAY, when ear input change between 191 …
... does the Spectrum's interrupt routine which your BASIC program is ... 10
For a correct test do not press any key ...Adventurers: Your Help NeededHi All, I'm embarking on a feat which I am going to regret. Basically I will need the help of a host of volunteers with a passion for those old cla…
... graphics definition and then calling the relevant routine with each address in ... turn. The following routine displays the graphics for GAC ... not all have the display routine in the same place. For ... at the end of the routine.
It insists on ...SAGE gamebook project newsThat's the Spectrum Adventure Gamebook Enhancement, that is (for the time being, anyhow). I've updated the [url=http://www.users.globalnet.co.uk/~jg2…
... indirectly, in that the compression routine on which I've been ... can give it a thorough test. Once I've got the ...Is there a ROM modification (48K) for load without typing LOAD""?The target is to play with 48K machines with keyboard broken, or an alternative solution for new clones like Superfo instead of making a new keyboard…
... syntaxcheck
CALL L2530 ; routine SYNTAX-Z
JR Z ... T_ADDR.
AND A ; test for zero - SAVE.
... T_ADDR.
AND A ; test for zero - SAVE.
...Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... DEC (HL) for the RAM test. Even leaving both DEC (HL ... the bottom. The original ROM routine is decremented back to & ...about Dan DareHi all, I not think this is for MIA forum but want to ask and I will be grateful if anyone help me with answer. I get from ebay dandare tape, origi…
... possible to invoke the save routine and use the new ZXDS ... .
About your proposed test with ZXDS/PZX, I also ...ISO-Copy - Individual Software revisitedHi folks In another thread about Supertape: [url]http://www.worldofspectrum.org/forums/showthread.php?t=36203[/url] ... we touched on ISO-Copy by th…
... version 1.8.7+ is calling itself as ISO-Copy 1 ... same, this Supertape program and test, and SuperTapeTest.CSW contain only ... block in TZX, so a test BASIC program encoded with SuperTape ...Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …
... to write a machine code routine that will store/restore (more ... 'm sure but a quick test shows it works.
Turn UDG to Attrribute blocksI'm trying to enlarge my UDG's to 8 x 8 character blocks per pixel, but struggling, is there any subroutine/program for enlarging UDG's x 8?
Translating my routine to assembly would be quite easy, specially 'cause all the division involved is no longer needed as you can test individual bits or do rotations easily. (the divisions in my code are to get the value of each independent bit).ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... it take for a small routine to read the entire video ... creating a new file, while calling open/creat syscall there isn ...
