-
Which Speccy game had best border effectsIn truth, I'm just trying to remember a game from my youth, and the amazing border effect during pause is the only thing I can clearly recall about i…
... every frame, which isn't as easy as you might ... i.e. multiples of 4 T-states. So unless you calculate the ... be a 1-3 T-State delay before your ... need, run at particular T cycle, with T cycle accuracy. See ... .org/forums/showthread.php?t=17551&page=10# ... -
Souce Code for Midnight ResistanceI just saw this on ebay and was wondering if this was the real deal. Does anyone know ? [url]http://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-Midnight…
... thought something wasn't right ... you weren't acting your ... />
I wasn't offended, per se but felt that the ... Attic bug didn't ... especially because they don't frequent WoS as often ... (J/K!) ... wouldn't really hold it against them ... -
Reported CPU speedThe original 16/48K spectrum is often reported as having a CPU at 3.54MHz. While watching Micro Men this evening (see approx 00:54:50), I wondered wh…
... affect things ?
the t-states can be used to get ... -
Z80 instructions tableI could never find a complete z80 instructions table (including timings) that I really liked. All reference material I have is either incomplete, or …
... and DD prefixes add 4 T-states to all operations, except (IX ... +d) that require 12 extra T-states.
I updated both ... -
Precisely timed loops in assemblyI'm looking for a way to make my code stop until the raster has reached the lower screen border (right after having drawn the last pixel line). I und…
... have a loop - I can't remember off the top of ... NOPs - that takes exactly 32 T states to operate. So I know ... .worldofspectrum.org/forums/showthread.php?t=24242[/url]
I ... -
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]…
... Saukas;607486]The first 48K T-states are inevitable, but if the ... first 16K T-states were used for processing the ... to spend the last 9K T-states anymore, thus leaving over 30 ... -
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]…
... version available at WoS doesn't do that.
The ... , since I didn't want to take more T-states than strictly needed ... -
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]…
... taking an exact number of T-states every time regardless of the ... routine, when precise timing doesn't matter. -
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: "…
... but 1 byte and 3 T-states shorter:
[code]ld ... -
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: "…
... bytes and 72 T-states.
I don't think we can ... 's 9 bytes and 126 T-states.
Or even smaller ... /> Now 8 bytes and 162 T-states.
[I]OBS: Still ... -
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: "…
... just 11 bytes and 72 T-states.
[I]OBS: Still ... -
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: "…
... takes 13 bytes and 80 T-states. The first code from my ... -
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: "…
... takes 13 bytes and 80 T-states. The first code from my ... shorter in size nor in T-states execution... ;] and of course i ... -
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: "…
... shorter in size nor in T-states execution... ;] and of course i ... .worldofspectrum.org/forums/showthread.php?t=38179"]BIFROST*[/URL]. I hope ... -
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: "…
... ,A 4
106 T states I think. Using memory 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: "…
... /> Good work! It's 70 T-states and 14 bytes (or 15 ... -
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: "…
... version which uses the fewest T states..! :smile:
I do ... useful, as I still haven't fully grasped "RL" vs "ADC ... -
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]…
... It seems the preprocessor doesn't like using parenthesis when there ... the sub-routines that don't have parameters.
... original code executes in 164 T-states (not considering the execution time ... new code executes in 118 T-states, thus it's almost 40 ... -
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…
... tstates in? I really don't believe you can manage a ... = 165 ... D = 215 ... Time in T-States between two INs.
T-States
AAAAB = 290
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…
[QUOTE=Z80user;610728]The EAR input "can" be change in 290, 349 or 399 T-States
AAAAB = 290
AAAAC = 349
AAAAD = 399[/quote]
Could you post a video of this loader working with a real tape deck?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.…
... code are down in red. [T-States/Bytes]
RLD/RRD 7 ... +7+18+7+7 = 97 T-States = 13 Bytes[CODE]LD A ... +4*(4+8+8 ) = 107 T-States = 5+4*5 = 25 bytes ...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…
... T-States = 11+4+8=23
T-States, repeat this 8 times = 184 T-States ... 184 T-States.
What should last 4341 T-States, may ... take less than 184 T-States T-States or ... every 16 * 4341 = 66288 T-States, the frequency changed.
...Shadow registers.I assume it's faster to transfer the registers to the shadow registers rather than using the stack? Let's say that I want to temporarily preserve the…
... ' and EXX are just 4 t-states each, so they're as ... . If changing BC+DE isn't a problem it's probably ... '. As a bonus it doesn't affect the current flags, if ...3D Wireframe/vector animation creator and player?Is there any software that can help record wireframe 3D animations by creating a file that stores just the coordinates and lines? If the answer is "n…
... this many line animations over 't' frames" per line.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…
... never get precise time between T states so you need enough margin ... in the T states for 0s and 1s to ...28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... by 8 pixels you couldn't move the attributes to keep ... -byte instructions, which take 4 T-states longer (or 8 if contended ... or borders. Then you don't waste too much time with ...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…
... picture. Divide T-States of pulse by 5.
T-States of OTLA get ... for remember it.
T-States between two data input from ... minimum pulse width of 79 T states (79 / 3.5e6 seconds), it ... /> Minimum pulse width of 190 T-States is 18421 samples/s. It ...
