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A Thread with not much Speccyness about it..Sorry this not only non-speccy related but is also somewhat C64 related:o But hey this is the chit forum is it not? Anyway, I already posted this q…
... RAM that fits like laptop memory does, flat, that ought to ... /> I am looking for some lower profile DDR1 RAM. -
How to safely maximise available memoryHi All, I'm toying with an idea that will require I have as much memory available as possible. I'm a little embarrassed I have to ask this tbh. As…
... capital letters, which saves on memory. In [I]Buzzsaw+[/I] I ... font to be 256 bytes lower than where it really is ... -
Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…
... -) ROM
5-) low memory (video memory)
6-) not your case ... the Z80, ROM or the lower RAM chips. These are all ... 2 of the IC6 of lower RAM is way higher then ... -
How to safely maximise available memoryHi All, I'm toying with an idea that will require I have as much memory available as possible. I'm a little embarrassed I have to ask this tbh. As…
... obviously ends at an address lower than the mc loader code ... use every single byte of memory, even to the point of ... -
How to safely maximise available memoryHi All, I'm toying with an idea that will require I have as much memory available as possible. I'm a little embarrassed I have to ask this tbh. As…
... obviously ends at an address lower than the mc loader code ... use every single byte of memory, even to the point of ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... for a Spectrum with its lower RAM removed and so I ... also tried my experimental SRAM replacement board. This doesn't work ... . The signals at all the lower RAM socket pins look reasonable ... be a problem with the lower RAM, but that something else ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... , but something then changes this memory location.
1 doesn ... to 1. If, however, the memory read cycle of this instruction ... I can plug-in a replacement ROM containing my own code ... -
Use a +2/+3 case as a replacement keyboard for 48KI was just wondering if a 48K Spectrum motherboard could be housed in a +3 case, and somehow the keyboard be connected so that it could have a proper…
... original 48k rom to the lower ram bank. I seem to ... would be to use a replacement rom with the original 48k ... -
New interface for ZXThis is my old (2004) unfinished project of internal interface for ZX Spectrum 128+2: ([url]http://velesoft.speccy.cz/hardware_in_development.htm[/u…
... JTAG cable will price also lower
PROFI INTERFACE is ... PCB used also for small memory or as FLASH EPROM board ... , multiface, etc... Small memory = low price = limited features.
Colour blocks on displayHi all, I have just acquired another Sinclair product, my first one being a C5, it's a 48K ZX Spectrum. It shows colour blocks on the display when p…
@Kamil
Due to the symetric patten, I would say the lower half of your memory is broken and needs replacing.
