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Linux WAV to TZX convertorsI looked through the posts and seen a few threads about converting WAVs to tzx but none of them are working for me. I have a few old tapes that don't…
... few old tapes that don't load in emulators. I have ... with all the formats and T states, etc, but I can identify ... of a tzx file doesn't show that.
Much the ... be correct and I can't figure the last lot.
Complete Spectrum ROM Disassembly error?I've discovered what looks like an error in the [url=ftp://ftp.worldofspectrum.org/pub/sinclair/books/CompleteSpectrumROMDisassemblyThe.txt]online ve…
... against
approx. 2,400 T states; resetting[/code]
I ...New assember ideaAs i work with Eclipse IDE in my job i become more and more lazy. This leads me to idea that it is time to left Notepad+Tasm combo behind and move on…
The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... is that the chip won't need to be memory mapped ... take the same number of T-states as LDIR.
I ...Bizarre stuff in Interface 1's shadow ROMAccording to the Complete Shadow ROM disassembly, the function that exits back to the BASIC interpreter after interpreting IF1 commands is this: [co…
... I missing? I just can't see any point however hard ... instruction. It just wastes 7 T-states as far as I can ...DJNZ e ProblemI'm trying to write the DJNZ e instruction as part of the development of my emulator and can't get it to work. Here is the in and out states of Phil…
... my emulator and can't get it to work.< ... is the in and out states of Phil's test ... 0X0000
Run for 132 T states
Memory: 0x00, ... 0x0001
PC 0x0004
T states 135
I ... 0 then
// We don't jump - just update the cycles ...Timing... in the CSS faqI was looking at the CSS faq for something completely unrelated and noticed: [quote] Then the 192 screen+border lines are displayed, followed by 56 …
... (64+192+56)*224=69888 T states long, which means that the ... quartz crystal oscillators. Crystals aren't perfectly stable and do vary ...Q. on a game.How many T-states/kbs/other methods long is the game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005606&loadpics=3&model=spectrum"]Vulcan…
How many T-states/kbs/other methods long is ... />
Barring that ... how many t-states or whatever (anything) is it ...Graphic enhancements in games!(this message was also posted at [url]http://www.retroremakes.com/forum/viewtopic.php?f=6&t=12431[/url]) Hello to everyone! A couple of years ago I …
... /viewtopic.php?f=6&t=12431[/url])
Hello ... , UnrealSpeccy has a "magic" parameter "t-states/frame -- number of tacts in ...AY tracker routineHi. Yesterday i played with some ay tracks and was surprised how big are tracker routines and music data (over 1.5KB for Pro Tracker routine and 4-6 …
... memory footprint and T-states taken ? Somehow i can't believe that all ... which takes more than 15000 T every interrupt (i estimate that ...PZX file support for ZX-BlockeditorDear readers, I'm working on the PZX format support for ZX-Blockeditor, as I discovered the advantage of having such a nice file format. It has a cl…
... the range of 0..FFFFh (T-States), but the CSW and PZX ... one byte.
I don't know whether this would be ...CPI emulationI'm currently writing Sinclairean's emulation assembly for the CPI/CPD/CPIR/CPDR instruction group. Does anybody know what exactly the behavior of th…
... behavior of the last 5 T-states-long machine cycle is? Some ... /> Obviously, the CPxx group doesn't actually [I]modify[/I] memory ...FMV on +3eOK, so about 6 months ago i posted here that i got full motion video on +3e, with a bunch of scr files called passion. I added the glider rider music…
... audio sample every 322-ish t-states. The result is full motion ...Emulator to create log files?Could someone please recommend a Spectrum 128K emulator that can dump the following data to an external text file, while emulating at normal speed? …
... />
1. The number of T-states since the last interrupt, at ...testing if speccy is fully functionalHi, There is so much mention of T states but still confused. Does this mean if an instructin is out by a T-state or more then the speccy is faulty?…
... is so much mention of T states but still confused. Does this ... instructin is out by a T-state or more then the ... somewhere that speccys have different T states depending on the warmup time ... this not mean that the T-state for all instructions should ...Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…
... screen backbuffer every frame (69888 t-states that is). Swap backbuffer and ... in pure assembly and doesn't use any multithreading or dirty ...Newbie's development thoughts.Just wanted to thank WOS development forum regulars, for the amazing information etc contained within these pages. 20+ years ago a did a little asse…
... doing things I just wouldn't have thought of. Working through ... unsurprisingly I had forgotten the t-states and flag setting for some ...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]…
... takes 69888 T-states, the ZXodus Engine takes almost 16K T-states waiting for ... the raster beam, about 32K T-states racing the raster beam, ... and over 9K T-states processing the tile map, ... game itself. The first 48K T-states are inevitable, but if ...Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... and SpecEmu. Unfortunately I don't have a real Spectrum +3 ... /> Line 48 introduces a 2 T-states delay in the border control ... to the well-known 1 T-state delay from "late timing ... behavior incorrectly, I just don't know which one...
Moving a line down the display in assembler?...It's not a "[I]how can I do it[/I]" question, it's more a "am I missing something in trying to do it a new way" kinda question. What I've been doing…
... ]
I haven't counted T-states...but is this really faster ... first example?
...isn't there another way of getting ... this, because if there isn't then I'd rather just ...Between interrupts and handlersSee there's this short period of time immediately after an interrupt comes but [i]before[/i] the control is transferred to an interrupt handler, abou…
... interrupt handler, about 17-19 T states I think. What is the ... (s) of such that aren't really located anywhere in memory ... yes, exactly how long in T states are these, and does it ...T-States?Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is? At the moment for me, tstates are a useful gauge …
Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is?
At the moment for me, tstates are a useful gauge for the relative speeds of instructions, though I like to 'visualise' things. In this case the ...BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... may take up to 2730 T-states. Using "sprite tiles" your ... program won't have to draw 2 tiles ... comparison, sprite tiles don't have this problem, since ... But even if this won't happen in your program, ... the player. However don't expect any gameplay, this ...How to benchmark a single routine?I've written a routine. It works. But it was never meant to be the final version. So I rewrote it. The new routine works too. Yay. :) However, I'd …
... tell me the number of T-states or milliseconds it takes to ...Chronos (BUGFIX)Please add the following "known errors" entry to [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000951"]Chronos[/URL]: [QUOTE]Bugfix provid…
... The routine above takes 109846 T-states, which is almost half of ... cycle that uses about 275500 T-states on average. It is ... The reimplementation above takes 87446 T-states, thus reducing game cycle to ... about 253100 T-states, and improving game speed ...Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... all know about that won't be quoted once more. ... protocol is this. I didn't yet.
From ... to ULA in 16 Z80 T-states, which means that the ... these 16 Z80 T-states, 36.57 IF1 T-states elapse. I suppose ...
(BTW, isn't there anyone with a Logic ...Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…
... NC's ate away the t-states.
Then the POP/ PUSH ...Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…
... each instruction - ie M Cycles. T States and time @ 2 MHz.
Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... different LD's along with t'states/flag effects etc., although I ...Understanding contentionI'm trying to understand contention and its implications when some "weird" bus cycles (such as I/O cycles with I/O addresses in the contended memory …
... there is also one more T-state that is contended in ... T1 to be enlarged 6 T-states if the I/O access ... too would enlarge T2 5 T-states instead of 6, am I ...
