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Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…
... I started dealing with the contended memory. Then I focused too much ...Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…
... code up in memory (>=32768 ) to avoid memory contention.[/QUOTE]
contended memory is the bit that fills ... , it's all in uncontended memory.
(OK, I admit ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
Yes, I agree Timmy. Using contended memory is a fact of life ... running time-critical sections in contended RAM, but for these games ...contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... have odd banks contended and even banks non contended, and +2A/ ... banks 0-3 non contended and 4-7 contended. Is this right ... because of the differences in contended memory.
And reading ... to the issue of the contended memory could the toastrack/+2 be ...Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
... ] means that DE pointing to contended memory introduces 3 delays ?[/QUOTE]
Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
... ]
if we forget contended memory, both routines should move same ...Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... code will always sit in contended memory. I?m not sure how ... GOSUB/RETURN), but keeps the memory overheads manageable.
Even ...Official CSSCGC 2011 Competition ThreadHello fellas. The site is up and running. We are already accepting submissions. [url]http://www.mojontwins.com/csscgc2011/[/url] Rules, info, and e…
... />
.No sound: Due to memory restrictions we haven't been ... the game (note that the memory restrictions doesn't apply to ... : We get advantage of the contended memory problem by sending two (or ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... /> Floating bus? failed (0xff)
Contended memory? passed
High port contention ... bus? skipped (B=0x01)
Contended memory? passed
High port contention ... /> Floating bus? failed (0x00)
Contended memory? failed (0x02)
High port ...Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... want to synchronise with the contended memory cycles, so as not to ...Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... want to synchronise with the contended memory cycles, so as not to ... method and lots of tedious contended cycle counting...
[code ... ]
; start on the first contended cycle of the line
SAVEing without waiting for keypresshello, here's question for y'all. is there a way in BASIC to bypass the "Start tape, then press any key" prompt when SAVEing an array? sorry if it'…
... solution to working around the contended memory issue.
anyway don ...The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.
... nice. And it runs in contended memory. Thats rare as loaders usually ... rom would be running in contended RAM and a couple of ... its multiload parts into 128k memory at the initial loading phase ...Emulating the 128KeIt occurs to me that I wasn't frequenting WoSf when I created the 128Ke standard, which means some people haven't heard of it. Here it is: [url]http…
... puts the I register in contended memory, which is a no-no ...Emulating the 128KeIt occurs to me that I wasn't frequenting WoSf when I created the 128Ke standard, which means some people haven't heard of it. Here it is: [url]http…
... puts the I register in contended memory, which is a no-no ...contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... have written for the +3 contended memory model?
would demo ... have written for the +3 contended memory without realising it?
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... have written for the +3 contended memory model?[/quote]
Yes ... have written for the +3 contended memory without realising it?[/quote]
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... in a frame and no contended memory! pirating rocks. %-)
2aowen ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... in a frame and no contended memory! pirating rocks. %-)[/QUOTE]
And ...FAO: Maintainers of ZX Spectrum Technical WikiThere's some odd write-up in French (???) in the contended memory article [URL="http://scratchpad.wikia.com/wiki/Contended_memory"]here[/URL]. I'm …
... -up in French (???) in the contended memory article [URL="http://scratchpad.wikia ... with speccy in general and contended memory in particular. ;)[/QUOTE]
enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…
... port #FF and timing (including contended memory) and on the real hardware ...RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... to refresh non contended memory, but all and every memory access, so I ... A group of 256 consecutive memory positions (the last 256 bytes ... presence of a true DRAM memory, and hence, a true ... "effect" acomplished. That is, more memory cells will become "damaged" by ...Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…
... fit within 500 bytes, in contended memory, as I used a lot ... of memory for other stuff already.
Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…
... fit within 500 bytes, in contended memory, as I used a lot ... of memory for other stuff already.
