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KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…
... quite emphatically with the "$D768 HALT " bit. You've got to ... -
KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…
... your code doing? Doing an HALT and then print two squares ... -
KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…
[QUOTE=Bandit;449480]Hope I'm not being too cheeky but here's a *very primitive* computer opponent that makes a little bit of a game of it.[/QUOTE]
My! Not in my wildest dreams I would thought someone made a patch to play against the CPU! **G ... -
+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... mode, with RAM bank 4 (contended memory) in 0x0000-0x3FFF, and ... -
Arkos TrackerHi all, I'm proud to present you my Windows-based Tracker : Arkos Tracker, for you to compose for Spectrum, CPC and MSX. It requires .NET 3.5 at lea…
... /> main_loop
; wait refresh
halt
; Wait a few ... -
Arkos TrackerHi all, I'm proud to present you my Windows-based Tracker : Arkos Tracker, for you to compose for Spectrum, CPC and MSX. It requires .NET 3.5 at lea…
... CPC we can wait a HALT, which is about 52 scanlines ... -
"Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…
... previous models, since every 8 contended states there's only one ... -
"Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…
... previous models, since every 8 contended states there's only one ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... time required per byte, including contended RAM overheads but excluding any ... external loops, is:
[code]Contended: LDIR LDI
Only ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... ]) describes the detailed timings of contended RAM. It gives timings for ... residing in, or reading/writing, contended RAM.[/quote]
You ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
And copying from and to contended memory is a real time- ... . Buffer the screen in non-contended memory and always copy from ... -
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) …
... ROM). The problem is that contended memory access isn't just ... square-wave tone channels) in contended memory. It sounds pretty funny ... -
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) …
... ROM). The problem is that contended memory access isn't just ... -
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) …
... square-wave tone channels) in contended memory. It sounds pretty funny ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
Well. This is my contribution to the list of vertical scrollers. This one uses PUSH/POP transfers, and no HALT's to sync with the screen (I just wanted to see how fast I can achieve).
[url]http://www.atc.us.es/~rodriguj/scroll_vertical.sna[/url] -
A question about M1 cyclesI'm writing an interrupt routine that, after the usual register pushes, will jump to a location of my choice with a [b]JP (IY)[/b] instruction. If I…
... table will reside in non-contended memory, somewhere in the address ... -
A message From Jonathan Smith (Joffa's) sisterI got an email today from Jof's sister (Christine) .. it was meant for all of us,so here it is. I'm guessing she won't mind [QUOTE]Dear Paul, Than…
... the taxi screeched to a halt and the driver said 'is ... -
multicolor on 48Kmany people tried multicolor 8x1 on 48K model and ended with maximum width about 18 chars. yesterday i tried [b]8x2[/b] on 48K and achieve 24 char wi…
... , you really get hit by contended memory.
(The one ... -
The Joffa Smiff Vid-Pic Depository.To All Friends of Jonathan Smith AKA Frobush. As most of us know, Frobush posted many short video clips and pictures on the WoS forum. Some videos …
... my taxi screeched to a halt - *almost* too late but not ... -
1K ZX81 "Chariddy" games competition mate..I'm trying to put together a Cronosoft 1K ZX81 gamestape in the style of the old "JK GREYE" 10 games tape that I remember owning about 28 years ago. …
... would be executed as a HALT instruction. It's a fairly ... -
Silly question on Russian clonesIv a silly question to ask... Iv been looking at web links about Russian ZX clones with envious eyes, wondering if I might spend money on something…
... ULA timings except for the contended memory -> [url]http://translate ... -
Cant DecideI have had a lot of spectrums in my time from the 16k to the +3 and as we all know they all have flaws. I am thinking about buying another and wanted…
... games are written for the contended RAM of the +2A and ... -
Embedding external code in Z88DK projects (Beepola related)Hi all, I've been doing a few things in Z88DK, but I was wondering how I could link binary data compiled separately into my projects. Specifically I…
... your song isn't in contended ram though. 32768+ is okay ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... . The Russian machines have no contended RAM to worry about. The ... both video RAM pages are contended. The standard Pentagon doesn't ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... the pages that are not contended on any of the 128s ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... />
Port 0x7FFD is itself contended, and horribly so. I only ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... ;464692]Port 0x7FFD is itself contended, and horribly so. I only ... -
Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... from uncontended memory during the contended part of one raster (the ...
