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z88dk v1.99A Release Candidate[b]Z88DK VERSION 1.99A RELEASE CANDIDATE[/b] Download from: http://nightly.z88dk.org/Releases/ The release candidate will be available for te…
... /> * [z80asm] Sections introduced for creating memory maps and compiling for bankswitched ... memory
* [z80asm] Modern operator syntax ... , GLOBAL scoping keywords introduced to replace XDEF, XREF, XLIB, LIB, etc ... -
Acer Aspire 5920G Graphics card - Replace or have fixed?Wondered if you fellow Spec-chums might be able to help me with getting the most cost-effective fix for a Acer Aspire 5920G laptop I've got my mucky …
... repair service(re-balled and replace chip-set) on these cards ... -
Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …
... corruption of the contents of lower RAM. A few errant ... BASIC portion of the memory test program that was ... a RAM fault while testing lower or upper RAM.
... , load and run the memory test program again and stopped ... SRAM module for the lower RAM and a different ... -
Elite - Save data complete map[code] $0000 Commander Name $0001 Commander Name $0002 Commander Name $0003 Commander Name $0004 Commander Name $0005 Commander Name $00…
...
$0014 Money Lower LSB
$0015 Money Lower MSB
$0016 ... change anything by modifying the memory directly so loading from tape ... day. It's loaded into memory but never read by the ... -
How R@RE was the 16k Speccy?I'm curious about the ratio of 16K to 48K models sold - the 16K seems to be a pretty rare beast these days. All the people I knew who had 16K Speccys…
... curious about the ratio of 16K to 48K models sold - ... the 16K seems to be a pretty ... people I knew who had 16K Speccys either upgraded it, ... of time. As decent 16K software was quite thin on ... />
When was the 16K model discontinued as well?
Britsoft - Read-Only Memory Publishing"Britsoft" by Read-Only Memory Publishing is their latest book charting the rise and fall of game development in the UK from the early 80s to the end…
"Britsoft" by Read-Only Memory Publishing is their latest book ...48K Memory MapHi, I'm having some trouble understanding the top of the 48K Memory Map. From reading elsewhere I have this as the memory map: 0 to 16383 - …
... the top of the 48K Memory Map.
From ... /> 0 to 16383 - Read Only Memory
16384 to 22527 - Display ... br /> 23755 to 65367 - Available Memory
65368 to 65535 - User ... area '23755 to 65367 - Available Memory'
Also what ...New Game - Cuboid CaptorWell, here it is, the (somewhat underwhelming) Cuboid Captor! This game was written for the ZX DEV 2015 competition and (to my knowledge) was the …
... my knowledge) was the only 16K game entered into the competition ... meant to be 3D but memory/time constraints forced it into ... Captor is probably the only 16K game to feature sampled speech ... for good reason: the contended memory makes it sound like the ...NEW GAME - Thunderturds 2 (16K edition)[img]http://forum.retro-computers.co.uk/uploads/default/original/1X/4b5e63f7039987ca157e693f5ab4eb278df60038.gif[/img][img]http://forum.retro-compute…
... [/img]
Heres the 16K version of Thunderturds 2. A ...Let's copy buffers!Figured I'd do some double buffered graphics, so I can render for several frames before displaying stuff. Yes, I mean on a 48k speccy, so no 128k spe…
... emulator doesn't handle contended memory correctly, but relative differences are ... most obvious optimization is to replace the ldir with 24 ldi ... probably not worth the 6x memory.Something is missing from my life.I've been bandying around with the idea of why it's just not quite the same, even when playing Spectrum games as it was back in the eighties. . A…
... games were amazing. Only a memory problem could give you back ... get my original spectrum out, replace the capacitors etc and use ...R registerI'm cross-posting this as a spin-off of a [url="http://www.worldofspectrum.org/forums/discussion/52748/zx-spectrum-cartridges/p2"]thread in "Hardware…
... From Z80 Manual
[quote]Memory Refresh (R) Register.
The Z80 CPU contains a memory refresh counter, enabling dynamic memories ... is sent out on the lower portion of the address bus ... dumped on the address bus lower byte, just after fetch, ...Need some help repairing an issue 3 spectrumI am looking for some help repairing an issue 3 speccy, here's what I tried so far. The speccy is not booting up correctly, when using the diagnos…
... using the diagnostic rom all lower ram ic's fail, the ... memory and logic is not installed.
Removed all lower ram ... it works expect for the lower ram.Upper memory issueZX Spectrum 48K, issue 2, boots fine. Lower RAM OK. When tested with the new test ROM in the Diagboard, for all upper RAM tests "FAIL" is shown. I…
... , issue 2, boots fine.
Lower RAM OK.
When tested ... be more important for the lower RAM, are the voltages:
POKE taking a variable amount of time...Hi Folks, Does anyone know why the following POKE statements seem to vary in their execution time? [code]100 POKE 60000,10 110 POKE 60001,16…
... with memory contention? Although address 60000 is outside the first 16K...
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... command directly to the screen memory.
5 LET a ... into a different part of memory first then dump it to ...Heat-sinking the spectrum 48+ :| [URL=http://s1063.photobucket.com/user/JRT480/media/Fotografia1988_zps5egnygdp.jpg.html][IMG]http://i1063.photobucket.com/albums/t515/JRT480/…
... /"]these[/url] on each memory IC, upper and lower.
But ...Ordered tapes and memory links.I did something a bit sad this evening... In the old days of Spectrum, I used to keep my tapes in those little plastic cases / racks from woolies.…
... , I get a very strong memory of the time and the ... in order to keep the memory link up:
I went ...Essence of the ArcadeAs some of you know, one of the reasons I will always be eternally grateful to WOS is to have helped me with its database and all my friends around h…
... my middle to long term memory by reactivating synapses after Neuron ... multiple 4 or 5 hours lower limb surgeries when i was ... /> When I was doing the memory training I normally do some ...SeBASIC Updated to version 3.2 by aowen...SeBASIC has just received an update!... Version 3.2 is now available, but it'll cost ya!... Its only $5 USD, and can be downloaded from here:…
... on the other hand, is 16k, and therefore suitable for 48k ... can loaded into all RAM memory (2A/+3).Contended Memory, literallyDoes anyone else have the sort of memory where they have trouble just picking out info cold? I know we had a discussion about memory sometime last mo…
... else have the sort of memory where they have trouble just ... we had a discussion about memory sometime last month, but...
memory, but my brain wouldn't ... that's it, my association memory is broken. Its all there ...ZX Spectrum, ZX81 and Middle SchoolersToday I gave a talk to 120 US middle school kids (7 grade) about computer science and careers in programming. I also gave them a taste of programmin…
... them to guess how much memory the Spectrum had.
lower.
64GB,
16GB ...Contended memory article on WikipediaYeah, apparently there's one. https://en.m.wikipedia.org/wiki/ZX_Spectrum_Contended_Memory [quote] However, the ULA must wait for a Z80 read or wr…
... 's clock and access the memory. As the ULA has no ... advance, it relies upon the memory being available to read to ...Wanted: Spectrum 48k lower and upper case ( or just dead machine!)Hi all, for a project I'd like to buy a 48k rubber key upper and lower plastic case I don't need the keyboard membrane, keyboard or faceplate, ju…
... 48k rubber key upper and lower plastic case
I ... faceplate, just the upper and lower plastic parts so I can ...zx.zigg.net lower RAM replacement module: Still shipping?Hi everyone I'm trying to resuscitate my 48k issue 6a, and I bought the lower RAM replacement module from zx.zigg.net. The paypal payment went thr…
... 6a, and I bought the lower RAM replacement module from zx ...Was it all Yellow?I've got this vague memory of my mates first, early 16k model ZX Spectrum. Am I correct in thinking the the white (Paper 7 / Bright 0) had a slight y…
I've got this vague memory of my mates first, early 16k model ZX Spectrum. Am I correct in thinking the the white (Paper 7 / Bright 0) had a slight yellow tinge to it, like parchment?
Was this something that was fixed in the later models?Issue 2 problem.Hi all, I'm trying to repair / upgrade an Issue 2 Spectrum for a friend, but have come accros the following problem. When I power the machine …
... thing is that with only 16K fitted the sinclair ram test ... says that the machine has 16K ram which is completely working ... fail with problems in the lower address range or sometimes upper ...Memory questionsQuestion 1: PRINT PEEK 23732+256*PEEK 23733 returns 65535 for a 48K Spectrum and 32767 for a 16K Spectrum. PRINT PEEK 16388+256*PEEK 16389 return…
... Spectrum and 32767 for a 16K Spectrum.
PRINT PEEK 16388 ... 16389 returns 32768 on a 16K ZX81 and 17408 on a ...A videoaventure in 16K - Cartridge for IF2Hello all, After an intermitent work I am near of reléase my new game: a videoaventure (exploration game) in 16K ROM carttridge. Your objetive is…
... : a videoaventure (exploration game) in 16K ROM carttridge.
Your objetive ... reléase source code, and 16K ROM file, after finish him ... game 48K like in a 16K native cartridge.
It ... with Interface II (ZX Spectrum 16K RAM model too).
SpecBAS 0.900 ReleasedAgainst my better judgement, here's 0.900. It's got lots and lots new, but mostly the new shiny is the editor. You can indent your code, you can e…
... reverse the order of) m lower-order bits in n
memory filling and allocation too)
