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Head Over Heels in last TZX Vault updateIn the last [URL="http://www.worldofspectrum.org/archive.new.080802.html"]TZX Vault update (2 Aug)[/URL] we can download the file corresponding to He…
In the last [URL="http://www.worldofspectrum.org/archive.new.080802.html"]TZX Vault ... /pub/sinclair/games/h/HeadOverHeels.tzx.zip[/url]
And ... -
Optimisations in Exomizer Z80 decrunch codeThis is the 163 bytes old code (simple and optimized): [CODE] ld iy, exo_mapbasebits ld a, 128 ld b, 52 push de exo…
... ld bc, 0 ;get D bits in BC
exo_gettingbits:
... register, that it's used by Amstrad CPC interrupt ... last change (the only that I have made) is only 1 byte ... ld bc, 0 ;get D bits in BC
exo_gettingbits:
... -
TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…
... did you choose "Number of Bits in the DataStream" instead of how ... with Block length in Bytes and "Number of bits used in the last Byte"? This will ... participate in. It may have drifted away, as have many TZX proposals ... -
ZX81 tape formatIs there a description of it somewhere? The TZX format doesn't give it but can it be worked out from what it says about block 19? There is a good d…
... clock to store the timings in a TZX file!).
... , ALL ZX-81 tapes used this encoding and therefore the ... as shown above. In either case, the last byte of a (clean ... Bytes
Each byte consists of 8 bits (MSB first) without ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... MY loading scheme - 1 byte, ECC and error detected
Test it, get the last line of picture. set up ... /> the slow frequency is used by 1000000 and 000001 and ... loading scheme encode 4 bits in 8 semi-wave
in tzx form should have ... -
Fairlight 2 again - ending, proposed fixOnce again I've been trying to work out Fairlight 2's infamous ending. I think that the following POKE should change the game so that a key could po…
... a key could potentially be used to open the final ...
and to change the last byte from 3c to - I think ... of the locked doors in part 2 will need ... If you're playing the tzx which loads everything into memory ... this starts at $d4f1 in memory page 1. If you ... -
'Bulb Blowout' basic type inHere's something I've just dug out. I pretended to have written this in 1985 but I didn't at all. I added some bits in, changed the characters names …
... at all. I added some bits in, changed the characters names ... rudimentary in-game screen for it with no colour used (I ... was crap at programming, even in basic, so there's ... .jpg[/IMG][/URL]
TZX is here so you can ... /8adv23jh5pbv7bi/Bulb%20Blow%20Out.tzx?dl=0 -
NEW RELEASE: "Willy's New Mansion" Special EditionOn the twelfth anniversary of the [url="https://groups.yahoo.com/neo/groups/manicminerandjetsetwilly/conversations/messages/4593"]release[/url] of my…
... , the change of the in-game tune in mid-room, Swooshing Arrow ... ;
- available space used virtually to the last byte;
- a ... the PVs he created and used in his games - many of ... and the final TAP and TZX files, and for making the ... -
TZX to TAPIs there an application for the mac which will convert TZX files to TAP? I've searched around but can't find any.
... and that's where TZX comes in. As for the fact ... tone, so we store in the TZX the number of flips, ... as certain flavours of Speedlocks, used a "clicking" pilot tone ... of data. 8 bits to a byte, so 16 flips ... TZX yet because they don't know what loader is being used ... -
Speedlock & Spin (again)Following on from the Vixen thread, I've come across another game which crashes during the decryption beeps - Imagine's "Ping Pong". With Vixen, a ne…
... works in SPIN here loads in 5 bits from the last byte in the ... Pure Data blocks, whereas the TZX ... Vault version loads in ... the speedlock in question uses the last byte or so ... -
Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…
... of memory. This is not used in the Spectrum.
IM ... ' register is the topmost 8-bits of the resulting 16-bit ... 0xf000 to 0xf100 inclusive. Every byte in this table is set to ... see if an interrupt occurs in the last machine cycle of an ... -
TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…
... is more interesting though:
Bits 0 and 1 are both ... contents of the TZX file. The incomplete first byte could be extremely ... by emulators. They would be used to truly reflect the structure ... present or it is computed in non-standard way.) -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... -----------
Port #254, used as output (using OUT) can ... can be used to set the BORDER color (bits 2, 1 ... /> --------------------
* Place most used subroutines at the top of ... is signified by the last character in the message having bit ... -
TZX 2 WAV requiredHi, Francisco Javier Crespo here (author of TZX2WAV)? or someone who knows his e-mail address or nick... need to send him some feedback of using T…
... to implement both TAP & TZX files to be converted, maybe ... ] in the last byte but worked when appropriate [B]RANDOMIZE USR[/B] was used ... is a special one: the tzx contains the blocks twice (I ... is ONE tzx file.)
Testing files were used from WoS ... -
TommyGun 0.9.x updates** Should be available via the utilities page soon! Please be patient :-) ** I'll be posting all future updates in this thread, instead of creating …
... (yes/no checkbox)
[ ] remove last column (yes/no checkbox)
used is the complement of this ... should zero out corresponding bits in the attr byte written.
Ideally ... -
My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... 7)
CCCCC = horizontal char / byte (0-31)
[/code]
in B so that the DJNZ instruction can be used. However ... bits in the screen address following the LDIs and by eliminating the last ... LDI and replacing it with a manual byte copy ... -
Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…
... choosing keys in a key control routine. So I used two ... returns a "standard joystick result byte" that is formatted the same ... I've also used bits to indicate CAPS and SymbolShift in the scancodes ... like to compile directly to TZX/TAP.
[/QUOTE]
< ... -
TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…
... you choose "Number of Bits in the DataStream" instead of ... in ALL previous blocks with Block length in Bytes and "Number of bits used in ... the last Byte"? This ... were against doing speedlocks in GDB, so why use ... -
TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…
... choose "Number of Bits in the DataStream" instead ... in ALL previous blocks with Block length in Bytes and "Number of bits used in ... the last Byte"? This ... "number of bits used in the last byte" is worse in the first ... -
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…
... ll see some of these used in MULE as well.
bits and bytes in memory. C ... ]
char c; // 1 byte in memory taken to hold c ... since chars are 1 byte in size. However with " ... br />
One last complication is the void*, literally ... -
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…
... -width UDG byte. The byte passed in, "bmp", consists of 8 bits which I ... result will have all zero bits in bits 6..0. Bit 7 of ... " by 4 will shift the bits in "res" left by two positions ... two "1" bits into bits 0 and 1 in the last loop iteration, they ... -
Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... SEED16) ; Store the SEED used on this pass
PUSH ...
POP HL ; Restore Seed used for memory fill
LD ... original correct byte is supplied in C
; The bad byte in B< ...
String8
DB "Last Failed bits: --------",0
String9
... -
The Making Of Manic Miner"Matthew Smith talks us through every level of his classic platformer Sat at the very desk where it was written, Matthew Smith watches Miner Willy l…
... br /> First time I've used a file sharer, so hope ... in hex)
6000: level data
6E03: last byte ... put a high score table in too)
* Air ... " feature so can reuse bits of levels. Will probably ... Flash Manic Miner will go in too.
* ... -
Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... />
I added some extra bits into my code to display ... /> MAKE_ROOM equ $1655 ; Used to create space in the BASIC program area ... ; HL now points at the last byte of the BASIC program area ... (if there are any, first byte after program area otherwise).
Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... this one I used to have redefinable keys in the game:
byte block
; part taken ... %00011111 ; 7t - only interested in last 5 bits
jr z,_REDEF ; ... and %00011111 ; 7t - only interested in last 5 bits
cp %00011111 ; 7t ...Fairlight 2 again - ending, proposed fixOnce again I've been trying to work out Fairlight 2's infamous ending. I think that the following POKE should change the game so that a key could po…
... a key could potentially be used to open the final ...
and to change the last byte from 3c to - I think ... of the locked doors in part 2 will need ... If you're playing the tzx which loads everything into memory ... this starts at $d4f1 in memory page 1. If you ...
