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RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... over full (by at least 1 bit per cell). But should probably ... : Empty cell. Encoded in 1 bit. Next bit is start of next cell ... .
1: Partial. More bits needed. Next bit is start of ... Quarter.
1 Partially full (More bits needed) - Next bit is start ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... notice your suggestion is basically bit-based entropy compression, where most ... case) are encoded as shorter bit sequences, and others are encoded ... : Blank screen is stored as 1 bit). Whether this is a win ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... ]Maybe if in the '1' cycle, 1 becomes 1, but each '0' before ... of "RLE0-bit" that would only make it 1 bit longer). Actually I ... a smaller sequence than "RLE0-bit"...
I previously ... URL], before I realized "RLE0-bit" would work much better.
Checksum routine wantedI wish to make a program that verify integrity of a Multiface 1 ROM. It is possible to compare each byte of the ROM against a binary dump, but this i…
... on the result. Now if 1 bit is wrong, that will definitely ... show up as a bit set wrong in the result ... fault, and say every bottom bit of each byte is lost ... them in a bigger, 16 bit space if you want to ...Demo music?It's bugging me. What game is this music taken from/based on? I know it's an Ocean game, but can't place it! [url=http://www.worldofspectrum.org/inf…
I think still the best 8-bit music of Golden Axe is on the C64
[url]http://www.youtube.com/watch?v=nrsvK7kB580[/url]Demo music?It's bugging me. What game is this music taken from/based on? I know it's an Ocean game, but can't place it! [url=http://www.worldofspectrum.org/inf…
... think still the best 8-bit music of Golden Axe is on ...Unravelling the Spectrum Floating Point Number formatHi Guys, In my head I pretty much understand how the Spectrum's 5 byte FP number format works. The first byte is the signed exponent and the follow…
... e as an unsigned 8-bit integer. 128 is the ... s) with an implicit leading 1 in the significand (mantissa)... ... ) = 0, and not −1 as one might perhaps expect ... original CRAY architecture (CRAY-1, X-MP and Y- ... to have the implicit leading 1 bit. IBM S/360 exponents ...RoguelikeI made a 1 bit tile set for a roguelike game, and then I made a Spectrum mockup. My colour choices are terrible, but if you want to code a roguelike…
... =Trihook;690255]I made a 1 bit tile set for a roguelike ...RoguelikeI made a 1 bit tile set for a roguelike game, and then I made a Spectrum mockup. My colour choices are terrible, but if you want to code a roguelike…
The tiles are 1 bit, you can color them any ...+2 grey Contended RAMhi all, i have some quenstions about, contended RAM are banks 1,3,5,7 banks are the pairs of IC's (4164), so 1 pairs = 16k X 4 pairs = 64k this 64…
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contended RAM are banks 1,3,5,7
1 pairs = 16k X 4 pairs ... pair positions?
BANK 1 IC's 18-26
1 Bit Dynamic RAM with Page mode ... organized as 65,536 one-bit words."
[URL]http:// ...+2 grey Contended RAMhi all, i have some quenstions about, contended RAM are banks 1,3,5,7 banks are the pairs of IC's (4164), so 1 pairs = 16k X 4 pairs = 64k this 64…
... the KM4164B datasheet: "64K x 1 Bit Dynamic RAM with Page mode ... organized as 65,536 one-bit words."
[URL]http://www ...Surely not Buzzsaw+ Already..?But this game has had such a short development time, how can this be? Free version of [I]Buzzsaw+ (Foxton Locks Mix)[/I] available here: [url]http:…
... like having a rubbishy 16kHz 1-bit sample player that turns on ... clear 0-0-0-0-1-1-1-1 sequence is screechy because of ... . But that may be a bit too ambitious.
Naturally ...Identifying the authors of classical beeper tunesDear all, I am currently working on a small demo, a compilation of some classic beeper tracks from ZX Spectrum games dated between 1985 and 1992. Alt…
... ?regexp=Melody+Music&model=any&loadpics=1"]Melody Music[/URL] and ... &model=any&loadpics=1"]Music Player[/URL] series - they include ... most of the noteworthy music from the original 48k games ...Identifying the authors of classical beeper tunesDear all, I am currently working on a small demo, a compilation of some classic beeper tracks from ZX Spectrum games dated between 1985 and 1992. Alt…
... regexp=Melody+Music&model=any&loadpics=1"]Melody Music[/URL] and ... &model=any&loadpics=1"]Music Player[/URL] series - they ... include most of the noteworthy music from the original 48k games ... and never finished it (the music was all prepared, but I ...New ZX 1k hires game : Q*Bert[url]http://www.sinclairzxworld.com/viewtopic.php?f=4&t=552&start=20#p11908[/url] Still working on improvement (i.e. multilevels), but this is the f…
It took me 1,5 hour, but I managed ... now the playfields only had 1 bit to set the 'colour' of ... win the timing was a bit tougher than thought, but I ...Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…
... any tips and tricks of 1 bit sound generation. Is there a ...Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... They may be a bit complicated for you to ... was this the last bit in the current byte?< ... UM3 JR NC,UM4 ; "1" means "copy an uncompressed byte ... "0" means "shorter codes", "1" means "longer codes"
LD ... into the output directly (1 bit gained per input byte)< ...Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
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[B][U]1. Alternative official versions compatible with ... - Hit Squad (without music)/Musical 1 (with music)
[*]Cobra - ... 1
[*]Tomahawk - Byte Back
[*]Top Gun - Hit Squad (without music ... load it with 48K music and sound effect. Simply ...1-Bit Wizards - The Journey Begins[IMG]http://irrlichtproject.de/pix/8bwc.jpg[/IMG] After 1,5 years in the making (or rather wasting away on various hard drives), the 1-Bit Wizards' …
love these 1 bit albums - really enjoy them Thanks!!!generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
... one is doing the attributes 1 bit at a time but it ... />
lfsr_galois:
; 16-bit Galois LFSR
; x^16 ... ^13 + x^11 + 1
; hl = 16-bit Galois state
Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…
... /> sla d ; shift BCD 1 bit left
rl c ; ... and move LH-bit to Carry
rl b ... ,a ; so do a 16-bit comparison
and a ; ...Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
...
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bit 0 = drive 1
bit 1 = drive 2
bit 6 = strobe ... (printer)
bit 7 ... the printer port (only one bit on D7 line)
Control ...Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
... /> bit 0 = drive 1
bit 1 = drive 2
bit 6 = strobe
bit 7 ...Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
... .
Drive2 is connected to bit 1, bit 7 is controlling the side ...Mirroring UDG'sJust wondered is there a quick an easy way of mirroring UDGs (byte values)? i.e. BIN 11110000 becoming 00001111 etc.
Literally zillions of similar bit hackery lives here:
[ ... /> unsigned int v; // 32-bit word to reverse bit order
v = ((v >> 1) & 0x55555555) | ((v & 0x55555555 ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... of which are: Sync/0 bit/1 bit signal duration (T states), Header ... ROM loader compares '0' and '1' bits with a single threshold ...
