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Another custom loaderI got into my hands a cassette with compilation of Polish programs. most of them MIA. Unfortunately some of them are saved with a kind of custom loa…
[QUOTE=Andrew Barker;601596]
Incidentally, are the exact timings in alkatraz available in the dev tools ?[/QUOTE]
They must be there, somewhere, but I didn't complete the analisys yet. :oops:
But let's not go off topic. ;) -
Ultimate Collected Works, no Underwulde, why?I managed to get my grubby paws on the "Ultimate Play The Game" "The Collected Works" off E-bay.... The set has 1. JetPac 2. Pssst 3. Tranz-AM 4. Co…
... /> [/code]
On the 128 $7FFD is the paging control address ... -
Ultimate Collected Works, no Underwulde, why?I managed to get my grubby paws on the "Ultimate Play The Game" "The Collected Works" off E-bay.... The set has 1. JetPac 2. Pssst 3. Tranz-AM 4. Co…
... /> [/code]
On the 128 $7FFD is the paging control address ... -
How faithful are you to Sinclair computers?Are you 100% faithful to Sinclair computers or do you divide your attention across multiple retro computers and consoles? I never had anything besid…
... more like the exact instruction timings and tricks like synch scrolling ... -
SpiffyBecause there aren't enough emulators already... [url=https://github.com/ec429/spiffy]Spiffy[/url] is my 48k Spectrum emulator, for Linux. Right no…
... />
Right now the ULA timings aren't perfect; to fix ... -
SU Issue 27:G8 16 (odd link?)[URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=^SU+issue+127%3a+Great+Eight+16$&pub=^Sinclair+User$&loadpics=3"]SU issue 127: Great Eight 1…
... /> Besides small differences in the timings of the turbo blocks, the ... -
Space Harrier Redux...For me, Space Harrier 1 on the Speccy was nice and quick but difficult to play because it could be difficult to see what was going on (also it was a …
... it to NTSC, the interupt timings are thrown, unless the game ... -
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 …
... are right!
Most timings for DD and FD were ... -
Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…
... simple RET for screen draw timings to begin with. Once I ... -
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…
... />
I take the clock timings from this list:
[url ... -
Happy birthday, Joefish....have a nice day. Fikee.
Double Dragon Remake: The Development ThreadOk guy's, so this is the new thread that will be focusing on Jim Bagley's development of the Double Dragon remake that was first proposed by myself a…
... similar but they have different timings. Maybe you should be aware ...Double Dragon Remake: The Development ThreadOk guy's, so this is the new thread that will be focusing on Jim Bagley's development of the Double Dragon remake that was first proposed by myself a…
... similar but they have different timings. Maybe you should be aware ...Jonathan Dunn participating in a russian game in 1994?I just saw this game in the archive: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0020742[/url] And was very surprised ti see Dunn as one …
much like where people make demos on c64, Maniacs of Noise, Galway , Dunn , hubbard etc's music used to be ripped a lot :)
it's just handy to have a "test" tune to fill up a bit of memory AND to help with the timings of interupts etc.Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
... BANK_M
ld BC, #7FFD
out (C), A
ld BC, #7FFD
out (C), A
ld BC, #7FFD
out (C), A
ld BC, #7FFD
out (C), A
Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…
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.…
... could use those to get timings on any section of code ...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: "…
... or something to get the timings for the sequence and adds ...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: "…
... or something to get the timings for the sequence and adds ...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.…
... room for improvement. (Einar's timings spreadsheet is coming in very ...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.…
[QUOTE=Battle Bunny;609981](Einar's timings spreadsheet is coming in very handy, though.)[/QUOTE]
You are welcome :)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.…
... room for improvement. (Einar's timings spreadsheet is coming in very ...4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... and above. The ULA access timings shouldn't depend on the ...4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... warms up and so the timings change slightly. The result isn ...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…
... that relied on said machine timings and memory ??
Thanks again ...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…
... that relied on said machine timings and memory ??
Thanks again ...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…
... that relied on said machine timings and memory ??
Thanks again ...New software screenmode: aSmpI was planning to release this tool at Forever XIII, but they didn't accept it, this is my 30th year activity, my most ambitious work on zx spectrum …
... 128k and +3 ula contention timings. I wanted to show what ...48K's and bad DivIDE compatibilityI have had some 48K boards and complete machines in the past which didn't work fully with a DivIDE interface. The reason for that always was a Z80 pr…
... to poor PCB contacts. Proper timings are critical for divIDE to ...
