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Z80 opcode breakdownAnyone knows if there's a document on the net covering all the Z80 instruction breakdown by machine cycles? All I could find was that one on the Z80…
Anyone knows if there's a document on the net covering all the Z80 instruction breakdown by machine cycles?
All I could find was that one on the Z80 support page and the CSS Faq, but I'm sure they're quite wrong in many cases.
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Finding the length of loaded Bytes:Is there a way from BASIC of finding out how big a block of bytes loaded from tape was? i.e. - if you do LOAD""CODE and load in a lump of bytes, ca…
Is there a way from BASIC of finding out how big a block of bytes loaded from tape was?
i.e. - if you do LOAD""CODE and load in a lump of bytes, can you then find out how big the loaded block was?
TIA
trellis.
ANNOUNCE: Jet Set Willy Construction Kit (JSW CK 1.0)Today I release Version 1.0 of my Jet Set Willy Construction Kit (JSW CK): the program I used to write We Pretty, Jet Set Willy: The Lord Of The Ring…
... example, you can edit the length of a rope, and you ...Ported whole casettes of backuped utiltilitiesHi! A friend of mine gave me a few casettes he found in the attic - he used these to backup ORIGINAL casettes he had back in the spectrum games. The…
... .469s
82-3E208: -------------------- Length: 2680 Normal Speed
< ... 527s
12- 88B8: -------------------- Length: 26 Normal Speed ,Pause: 18 ... .402s
80-321CB: -------------------- Length: 32185 Normal Speed
64loader.txtIs the txt file wrong about the 0 and 1 waves? The mechanism that detects the amplitude change on C64 only works in one way i.e. it only detects the…
... (it doesn't matter the length of each of these pulses ...Your Sinclair, issue 1, pages 62-63OK, I have a big favor to ask from anyone in possesion of the YS issue above and with access to a scanner. I cannot decypher the UDGs in the 'Worm' …
... up to appx. 5mb in length, so that's the maximum ...No speech in Cobra's Arc? A mystery tale from Spain...I once downloaded CsA - probably from some Spanish retrogaming website - in TAP format. While I usually discard TAP files in favor of TZX ones as soo…
... [I]exactly[/I] the same length (48,732 bytes), and this ...ANN: Issue 9 of Sam Revival magazine out now (Sam Coupe)Issue nine of Sam Revival magazine is out now, and this issue features the first cover disk! The magazine starts off with the usual Quazar News, as…
... quirk in an undocumented Z80 opcode in a newer revision of ...YSRnRY TV Show - 1983 now available for downloadHi there! The next chapter in the YSRnRY TV Show is now available from: [url]http://www.ysrnry.co.uk/tvprog/[/url] Watch the Speccy industry form…
... /> It's 8min 34sec in length, and an 85.5Mb download ...ANN: SpecEmu 2.3 - Minor UpdateHere's a minor update to the SpecEmu emulator - the emulator with an incredibly small filesize for a Win32 application, and backed up with an incredi…
... :
- Fixes to some overlooked opcode contention timings.
- Improved floating ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... /> Internally, the Z80 divides every opcode into M-cycles; each M ... /> * M1: 4 tstates: read the opcode (0x34).
* M2: 4 tstates ... bus value (0xff), coincidentally the opcode for RST 38, so the ... data bus means a random opcode could be executed, which makes ...Game loop design?Having some thoughts on how to design the game loop and could do with some hints and tips from folks who have done it before! It's all about how to …
... loop is about the same length, i.e that it should ...Techy Z80 questions****** Question 1 ****** Take the instruction SET b, (HL). This is broken down (in machine cycles) as follows (according to Microprocessor Technolo…
... (4T) [i.e. the actual opcode]
M2: MemoryRead(4T)
opcode that would have followed the ...Interface Zero joystick interfaceHello I just built a joystick interface with instructions I found from Your Sinclair ( [url="http://www.users.globalnet.co.uk/~jg27paw4/yr05/yr05_72…
... same sympthoms. What was the length of the cable? I do ...Technical question re. filename lengthsI've recently acquired a few interesting Manic Miner editors by R D Foord dated 1985. During the dumping process, I've come across a couple of block…
... 10 characters being the maximum length for any filename, and this ...[CRL] Formula One ModI've seen the odd person ask for a Formula One name editor from time to time*** and, as it's an ol' fave, thought I'd add one as I can never find the…
... (Australian and Malaysian GP's). Length of names saw to that ...Retro Gamer: Retro Maniac Award 2004Just received this from Craig Vaughan, who wrote the article in RG on Speccy Spoilers, RZX Archive and Spectaculator earlier this year. He says to pa…
... 500 words max, but ANY length under that is fine.
length and content. If the article ...Trying to make my first TZX, but it won't run..Hey :) I've finally got around to start imaging some tapes here, but unfortunately I ran into problems right away, bah. I'm trying to dump "Ace Low…
... => Program: ACE LOW - Header: Length= 17, Pause=995ms.
Block ... 2 => ------------------- F Line= 0, Length=24629, Pause=10ms.
Possible bug in SpectaculatorI was recording a walkthrough of the text adventure Planet of Death in Spectaculator (version 6.20.0540). When I started a recording I entitled the R…
... file extension and 0bytes in length.
Since I managed ... was either the : or the length that buggered up the RZX ...plus3dos headersThe plus 3 manual states that bytes 15...22 contain +3 BASIC header data. Which on the whole seems to be true, however I've never seen bit 22 being a…
... 0 & 1 contain the length of the data / header block ...Oh God, what WAS the name of this game!?I think all the action took place on one screen as I can't remember it scrolling or any other screens. You control a little man who starts at the to…
ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... assembler, capable of assembling every opcode supported by the z80. Supports ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... assembler, capable of assembling every opcode supported by the z80. Supports ...Turbo baud rates, pulses length for +50%(2250)?I need the 0-bit and 1-bit pulse lengths for 2250 baud rate. Also, a table with pulse lengths for upto +100% (and beyond) would be very useful to me…
I need the 0-bit and 1-bit pulse lengths for 2250 baud rate.
Also, a table with pulse lengths for upto +100% (and beyond) would be very useful to me.
Or is there a simple calculation formula?
Thanks
Edit ...NEW GAME COMING SOONMr Cauldwell has been busy again. How about this for a scenario....... Loco Bingo ========== The Plot -------- In the very near future a hith…
Ep III DVD arrived this morningAnd as usual it's crammed full of features. The second disk contains some cool deleted scenes, including Grievous slaughtering a Jedi and Yoda arriv…
... /> Plus there's a feature length 'Making of' documentary, trailers, tv ...Tap files - exact specsThe FAQ says... [quote] TAP Format The .tap files contain blocks of tape-saved data. All blocks start with two bytes specifying how many bytes will…
... follow (not counting the two length bytes). Then raw tape data ...CassettesIs anyone here in agreement, that it's bloody annoying that shops decide when to make a product obselete (and not the consumers)? I recently bought …
... have no problem getting special length (C-10/C-15) tapes ...Machine Code QuestionHi All Not sure if this is the right place for this but it seems closest. Am starting to read the Toni Baker Intro to Machine Code book and its ver…
... the book plus the relevant Opcode listings...
Is Assembly ...
