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Missed opportunities in the 80'sAll the talk of the Loki got me thinking... What if someone had built an expansion box for the speccy that had the 3812 Yamaha music chip ( Adlib Sou…
... the Spectrum ROM with a RAM and loader, potentially open the ... that... Basically just reusing the RAM that came with the speccy ... the signals were present, and paging RAM into the ROM slot of ... original as a donor CPU, RAM and keyboard, doing away with ... -
New (latest) Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike DaillyNew latest Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike Dailly V2.15.2 As seen on Facebook yesterday: [quote]Mike D…
... " machine to have a full RAM machine, you will now need ... to $BB for DivMMC direct paging control
Current ROM and ... -
Built a ZX Spectrum that works, but can't get the upper RAM to work?Like the title says I finished my Spectrum 3B board, and it boots, but it doesn't see the upper 32k of RAM. When it boots, the lower 16k works f…
... see the upper 32k of RAM.
When it boots ... programs and even run a RAM diagnostic. Basically, tells me that ... all the associated logic, and RAM chips, with no effect. I ... direct connections between the upper RAM and associated logic, and I ... -
Max RAM for ZX Spectrum gamesHow much RAM can be used for single level/whole game? On tape writing.
How much RAM can be used for single level/whole game?
On tape writing. -
Some \"newbie\" questions about the Spectrum +2I bought a +2 last week. I had never owned any of the 128k Spectrums before, nor seen them in action. I have a couple of questions; 1) Do all 128k …
... unlocked. Paging is what allows access to the extra RAM on a ... 128k spectrum so any game that uses paging ... games that go weird with paging enabled (which is why the ... ability to disable paging was included in the first ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... a 6mhz one and 128k ram would struggle to store the ... clone and having more switchable RAM banks is definatelty advisable. Although ... for). You can maintain 128k paging compatabilty by simply addressing different ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... the contended RAM.
Normal memory paging is extended by ... normal paging routes - basically whichever RAM is in the RAM 1 ... deviced emualted in RAM if needed.
Paging
7FFD - 128k paging
D0...D2 - RAM select
D3 ... -
Most engrosing Adventure GameThis is one for all you text adventure lovers. Of which I am one. I remember reading those Fighting Fantasy books when I was a kid. The ones where y…
... 's nothing to stop you paging in a 128k ram bank. -
Most engrosing Adventure GameThis is one for all you text adventure lovers. Of which I am one. I remember reading those Fighting Fantasy books when I was a kid. The ones where y…
... nothing to stop you paging in a 128k ram bank.
[/quote ... -
Paging questionI've a question regarding paging on the Spectrum 128K, +2, +2A, +3, etc, etc. Suppose we are running a program in the page that happens to be.. well,…
Paging merely redirects the CPU to ... are merely the same physical RAM. -
an idea that could be very very good...but also very very bad...Hello all! I've been having a chat with some of my friends round here that once loved the spectrum (well...2...as they're all heathens round here...)…
... finished.
Alot more RAM would be good. Getting rid ... , but be able to emulate paging for compatibility with older software ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... ]
Given that memory paging is (essentially) still the method ... access more than 4GB of RAM in 2004, it appears that ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... />
[quote]Given that memory paging is (essentially) still the method ... access more than 4GB of RAM in 2004, it appears that ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... be able to address this Ram as you would the 48K ... have bigger instructions.
Paging didn't hurt the 128k ... choices - bigger address bus or paging. If you can think of ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... /> (addressing more than 64Kb of RAM)
i think it ... be able to address this Ram as you would the 48K ... />
but as far as paging RAM, and ive stated on more ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... :
but as far as paging RAM, and ive stated on more ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... Phil is saying that not paging RAM and having access to more ... as to an alternative to paging that would have been possible ... been better.[/quote]
Paging or accessing the memory in ... attribute squares or having more RAM were technology that couldn't ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... +2A/B/3 had alternate paging modes that allowed for more ... paging schemes.
[quote]does anyone know how much RAM ... Sinclair actually used faulty 32K RAM chips with only 16K accessable ... the Spectrum?[/quote]
RAM, Z80 and ULA have got ... -
RGB values for Spectrum colorsDoes anybody know the true rgb color values for the spectrums 15 colors. I'll assume that black is 0,0,0 White is probably 255,255,255 But what are t…
... , due to the fact a paging error kept crashing it...but ... etc, although soon to be RAM Disks
-----------------------------Quote ... -
Most popular new features? I know some people like a spectrum to be emulated as authentically as possible, while others like myself like features which improve the gfx, sound,…
... , you have to emulate the paging in of the TR-DOS ... have to emulate the paging of 128K RAM. However, you absolutely do ... -
+2A "Ghost" programHi all - first time posting here, so I'll do a quick background - I was a (far too) dedicated 48k and +2A gamer in my younger days. Thanks to the mi…
... paging modes on the +3/+2A/B that allowed full 64k RAM ... -
+2A "Ghost" programHi all - first time posting here, so I'll do a quick background - I was a (far too) dedicated 48k and +2A gamer in my younger days. Thanks to the mi…
... paging modes on the +3/+2A/B that allowed full 64k RAM ... -
128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
... /> You have two banks of RAM, one contended, the other uncontended ... -3, 4-7). Basically what paging allows you to do is ... from the Z80 to the RAM. Since the ULA doesn't ... -
How to detect 48k modeHow can you detect if a 128k machine is in 48k mode (from an emulation point of view, not via BASIC or machine code)? Checking the current rom? But …
... RAM pages. Of course it will crash at some point if paging ... -
Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... changing the paging routine. It has two separate RAM pages available in ... be necessary is changing the paging code. I'd forgotten about ... -
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... na_th_an wrote:
About the paging stuff: Yeah, my idea was ... copy of it in every ram page.
... model: you have 48k RAM during gameplay but you use ... the extra RAM as a RAMdisk, copying ... things to and from other ram pages.
... -
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
You are completely right. Before z88dk, I would have never considered stepping into assembly coding. Now I try to convert the most critial parts to assembly within the C skeleton, which is a good thing. We should try and get more people to try z88dk, I ... -
'usr 0 mode'Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?
... old printer buffer as a "paging swap routine", and thus any ... RAM available.
Moving to USR 0 will leave the paging ... -
BASin Release 13 is now availableI'm still at it. BASin is now in it's 13th incarnation (disregarding the inter-version updates) and is now available at [url="http://homepage.ntlw…
... the AY and the extra RAM emulated (I'm thinking mainly ... emulated - as is the RAM/ROM paging and the "lock out" of ...
