-
The curious case of the vanishing zerosRight, I'm back for more help guys This time I think I've figured out the code ok....but still it fails - well it works but only once... Basically …
... required data statements in your code?
As for the ... the Vanishing Columns, the leading zero in binary shouldn't really ... it might be a leading zero thing initially but the 1 ... -
The curious case of the vanishing zerosRight, I'm back for more help guys This time I think I've figured out the code ok....but still it fails - well it works but only once... Basically …
... forcing it to retain the zero? or is it doing the ... and using the wrong character code anyway (he's used the ... code for STR$ instead of BIN).< ... -
How to safely maximise available memoryHi All, I'm toying with an idea that will require I have as much memory available as possible. I'm a little embarrassed I have to ask this tbh. As…
... CGC competitions has in game code on screen. Not played it ... protected and requires a line zero but making it crap was ... -
Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…
... the concept of self modifying code is difficult to get your ... as seperate from the main code.
Oh and ... changed all the attributes to zero (black on black) before a ... -
Amazonia (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027280"]Amazonia[/URL], please add the following "known errors" des…
... DAY SHOULD NOT RESET TO ZERO!
9ee2 23 inc ... the other byte is already zero)
9ec5 21e99b ld ... reset minutes/hours/days to zero
9ee2 23 inc ... c7 rst 00h ; reset computer[/CODE]
Fixed using ... -
Free emulator on sale in E-bay...[URL="http://www.ebay.co.uk/itm/ZX-Spectrum-Emulator-PC-23-000-Games-/120843781317?pt=UK_VintageComputing_RL&hash=item1c22d9c4c5#ht_500wt_1204"]This[…
... consider truly special and get zero profit than create a second ... it so that all source code was made public when ... they'd lost the source code. A real shame, but ... works for which ALL source code is entrusted to my ... any software who's source code is not given to ... -
Ultimate Collected Works, no Underwulde, why?I managed to get my grubby paws on the "Ultimate Play The Game" "The Collected Works" off E-bay.... The set has 1. JetPac 2. Pssst 3. Tranz-AM 4. Co…
... that a big chunk of code was being erased it was ... break when ($C000) changed to zero, and it stopped after that ... -
Help needed with a loop counterVariable W counts to 12 then calls a subroutine to move a character, it then resets to zero and starts again. For every 2 moves of that character I …
... character, it then resets to zero and starts again.
code.
EG: LET W ... at your objective, and your code structure.
maybe a ... -
Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... LOOK_VARS when DEFADD is non-zero.
There's a ... I have a bit of code that restores the UDG memory ... -
RND numberHow do I go about selecting from the numbers 4,9,14 and 19? (RND*4)*5-1 ????? :-?
... for your question!):
[code]100 LET a=1+INT ... =3)+(19 AND a=4)[/code]
This can be ... the value indicated and others zero. So if a=3 you ... -
Poking a string to memory...I'm looking to poke a string of characters including colour control codes to memory, I'm currently doing it by hand: 16,2,19,1,22,1,1,144 That equa…
... statement equate to:
[CODE][B]Value Hex Character Description ... .
[CODE]300 LET b$=a$[/CODE]
Copied memory ... its default values of zero.
[CODE]400 LET b$=""
420 POKE 23564,0[/CODE]
Enjoy!
... -
ARKHAM ASYLUMim just dreaming out loud here because i cant programme...but Batman Arkham Asylum on the speccy!! how would/COULD it be done? what game engine would…
Why don't code a game based on this from zero, without using an external tool like Jet Set editors or 3D Gamemaker? It could be terribly fun.
I'm just giving another choice. :) -
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.…
... the matched length (might be zero) plus one for the first ... makes it wrap back to zero. The linear buffer in memory ... of my own circular buffer code in z80 to speed things ... -
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]…
... is location dependent, thus the code cannot be easily relocated.
code block" is actually quite inventive ... in terms of updates requiring zero work to plug back in ... this - it's very fine code. (Literally, since any rough spots ... -
rotating HL left through CarryI've tried this several ways, and it works for a while, then a particular value has a bit set in an inconvenient place and it all goes to pot. Eg: "…
... : L=$81 H=$71 with zero in Carry.
What ... a long time...
[code]
LD L,&28 ...
notset2:
RET
[/code]
Which ub880d is ... -
rotating HL left through CarryI've tried this several ways, and it works for a while, then a particular value has a bit set in an inconvenient place and it all goes to pot. Eg: "…
... has a similar piece of code, in the reverse sense, just ... bits of the pair are zero, as I only use 12 ... -
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.…
... at position PB length PL (zero if no matches) plus the ... timings on any section of code enclosed by break points and ... -
How Sinclair computer interprets audio and loads codeHello, First time posting here, so sorry if the question is already answered or is unanswerable. I am trying to find some info about how sinclair …
... rom code counts time between zero crossings to determine if a zero or ... -
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.…
... "push hl : pop hl".)
[code]
PA2PZ: ld de,(CPOS ... match in window; output a zero entry
NOMATCH:call OUTPUT ... -
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.…
... removing instructions from BUF128...
[CODE]
; res 7,c ;removed ... ;pretend BIT 7,C was zero
RLA
RL c ...
RL d ;D =fz[/CODE] -
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.…
... yet another instruction:
[CODE]; res 7,c ;removed
zero
RL c
LD ... /> RL c ;C =wx
[/CODE] -
Genius G540 programmer and GAL22v10B?I noticed in an Amiga forum Zetr0 saying they'd used a Genius G540 programmer to program GALs... I'm not having any luck with mine :/ I know this is…
... pages and pages of zero instead of the ... br /> 11111111110111111101111101110110111111111101*
....... etc.....[/code]
You must delete ... fixed jed file:
[code] L0044
11111111111111111111111111111111111111111111
Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... , what about this
[code]
clear
ld ... there is at least one zero
;byte in memory (in ... nz, loop
ret
[/CODE]Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
[QUOTE=Fikee;612989]
[code]
inc hl ;desync 2048B ... there is at least one zero
;byte in memory (in ... /> ; worst case 6144 iterations ;)
[/CODE]
[/QUOTE]
are you ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... .z80]z80[/url].
[code]
; This setting (when uncommented ... /> LD A, (HL) ; Self Modified code (from above)
MOD_INST:
zero as we have already done ...
.BYTE 10000000b
[/code]Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... nicked parts of it for Zero's AY emulation as well ... />
* Zero's AY emulation also includes ... some brilliant piece of glue code, written by yours truly, to ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
[QUOTE=Arjun;613247]
Zero's AY emulation also includes ... some brilliant piece of glue code, written by yours truly, to ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
[QUOTE=Arjun;613247]* Zero's AY emulation also includes ... some brilliant piece of glue code, written by yours truly, to ... ability of writing good "glue code" is properly recognized. I mean ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... nicked parts of it for Zero's AY emulation as well ... *. :P
* Zero's AY emulation also includes ... some brilliant piece of glue code, written by yours truly, ... attributes). this code could do the job:
[CODE]...
[/CODE][/QUOTE]
