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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…
... the +2A/+3. On the 128K/+2, RAM pages 1, 3, 5 ... -
ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…
Bug in EMUZWINIt's quite minor actually and is in the Assembler. Ocassionally when assembling the ASM gives the wrong address to a label. For instance I used the l…
... /> opened it,the basic (maybe all ram )seems resetted (and the command ...Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?
So allow Y to range "only" to 191 (=> 48k table) and use a 64Kb RAM mode. Next, please :)Back on the Burgle![url="http://www.filelodge.com/files/hdd4/78741/back_on_the_burgle.zip"]Download[/url] This game is in BASIC so don't expect anything as good as Pha…
... only be run in 48k mode as I had a few ... it on an emulated 128k in 128 mode.
nice work ...What could Sinclair have doneI know that he lost interest in home computers, but Sinclair as a computer company could have had a longer life span than it did, the move from 8 bit…
... ) with a proper keyboard, 128K of RAM, a floppy drive option and ...Sintech titles no longer denienced!8 years after the initial denience ( June 1998 ), the 3 Ultrasoft titles that [URL="http://www.worldofspectrum.org/infoseekpub.cgi?regexp=Sintech"]Si…
... 6.25... in 48k, 128k and +3 mode. Game loads fine but ...Papaya Labs shop open for DivIDE pre-orders.Papaya Labs are now taking pre-orders for DivIDE interfaces and other DivIDE accessories. Find their shop at [url]http://www.papayalabs.co.uk/shop/[…
... similar. Long games, which use all RAM...
'Serious' usage of Speccy ...How are people developing?Are most coding on actual HW or under emulation, or cross developing?
... 's ROM to not deleting all RAM after crash and add NMI ...How are people developing?Are most coding on actual HW or under emulation, or cross developing?
... 's ROM to not deleting all RAM after crash and add NMI ...Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... />
The 128's 128K of RAM is divided into eight physical ... configuration (13467) are silicon disk RAM. Ramdisk files are stored one ... the bottom of silicon disk RAM and the ramdisk catalogue ... of silicon disk RAM. The silicon disk RAM is logically ordered ...Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... =Alcoholics Anonymous]The 128's 128K of RAM is divided into eight ... , maybe now I can get 128k emulation in SPIN and finally ...Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... logging weather station (I have 128K Flash RAM on board, of which ...Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…
... a couple more things than RAM, but if the machine ... sequence makes the CPU fill all RAM with 02 hex, then ... lower RAM.
I had a non-booting (at all!) ... CPU would not even test RAM) or even the EPROM ... the lower eight 16Kx1 RAM chips with a single ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... have.
First, check all RAM supplies are OK: The 4116 ... 6A clone has more modern RAM chips which only need +5 ...problem with sinclair zx 48 issue 6aHi all, I have the following problem when I turn on my sinclair without rom inserted. [url]http://217.79.64.145/sinclair/5.jpg[/url] when I turn o…
... sinlair and no changes at all
are there differences between ... (IC27). This chip comprises the RAM address multiplexers and glue logic ... , intercepting address lines and generating all RAM control signals).
Piters, do ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... the fault. First, remove all RAM chips from their sockets (I ... assume they are all on sockets? If not, ... that carries power to the RAM chips). Replace the transistors ... blows, it's not RAM causing the problem and ... the lower 16K of RAM with three voltages, it ...Best replacement for ZTX650?What is the best replacement transistor for the obsolete ZTX650? I've read that TIP31 will do the trick. Is there a decent equivalent from the BC or …
... the fault. First, remove all RAM chips from their sockets (I ... assume they are all on sockets? If not, ... that carries power to the RAM chips). Replace the transistors ... the lower 16K of RAM with three voltages, it ... was damaged.
It all seemed to work ok ...How about making a diagnostic program for 128k speccys?Hi guys, I was just chatting with DEATH today about a problem i had with my 128 heatsink spectrum and the need for a 128k speccy diagnostic program …
Ok, that looks about right - should be easy then to set up a normal 48K environment, test all ram with Geoff's program, page the memory, test top 16K, do again til all ram checked.
That you Mr Andrew.How about making a diagnostic program for 128k speccys?Hi guys, I was just chatting with DEATH today about a problem i had with my 128 heatsink spectrum and the need for a 128k speccy diagnostic program …
Thank you.
So if my machine actually boots to the options window, does this mean all RAM is supposed to be OK?+2B problem stillHi all, I have a spare +2B that still dont work. Richard kindly sent me 4 x 4464 ram chips but the +2B still dont work I have swapped over both ROM`s…
[QUOTE=swift240;205863]Hi all, I have a spare + ... sent me 4 x 4464 ram chips but the +2B ... warm, all 4 RAM chips are cool.
all RAM chips are ... /> I thought that the RAM chips was the problem but ...
Are you SURE the RAM is ok? If so, then ...MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]
... you have only 48k or 128k of RAM?
A CTC ...Multiface +3The other Multiface topic has reminded me about this... I may still have this lying about somewhere (although +3 i had at the time is long dead and …
... the +3 is in its all-RAM configuration. If you press the ... I had also used the all-RAM configuration, so I couldn't ...SAM gets ethernetWhilst off topic - head over to [url]www.samcoupe.com[/url]. Colins got his ethernet board for the SAM available to buy and some interesting news ab…
... have a >=128K flash ROM and >=128K static RAM (any internet ... pages, and any page (ROM, RAM, W5100 buffer) should be arbitrarily ... , W5100 in 0x2000-0x3FFF, or RAM in 0x0000-0x1FFF, ROM in ...Mapper of Spec+3 - Needed schematic equivalent .And also wondered if the register 1FFDh bit0 = 1, the port mapper 7FFDh disabled ? Possible only such combination pages? [CODE]┌──…
Yep, writes to port 7FFD won't have an effect on the paged banks. Not until you come out of 64K RAM mode anyway :)My 2003 XP Comp VS new quad core Vista compMy 2003 built Win XP computer pissed all over our universities very latest Win Vista Quad Core computers. I had a photoshop file containing a 205 La…
... 've found when you turn all of the superfluous crap off ... Vista seems to fill up all RAM resources - read up on it ...My 2003 XP Comp VS new quad core Vista compMy 2003 built Win XP computer pissed all over our universities very latest Win Vista Quad Core computers. I had a photoshop file containing a 205 La…
... 've found when you turn all of the superfluous crap off ... Vista seems to fill up all RAM resources - read up on it ... does like to soak up all memory, thats why our uni ... that will further bog down all but the fastest computers.Memory paging in 128 KB - 64KB RAM possible?I have found a quote in Spectrum 3 manual (available at WOS) -------------------- In the +3, we have crammed in more than twice the amount of memory…
... load routine.
- In the all-RAM configuration, the Multiface doesn't ...
