Do I need 4 MB of RAM? — ZXNet «zxnet.soft»

From Alexander Yudin To All 28 October 2006

Hello, p@lex And on which bits of which port did you hang the extension? Please post the diagram for everyone to see.

From Alexander Pekhimenko To All 28 October 2006

Hello, All I have Leningrad-1024. I was sitting at my leisure and drew a diagram for expanding the RAM up to 4MB on 4 SIMM 1MB. I’m going to solder it. But I don’t know if this is necessary. What software such an extension will support. I planned 4MB for a full download of wav songs in RAM. But a program appeared that plays wav from the hard drive. Who can say what?

From Andrey Polikhanenko To All 28 October 2006

Hello, p@lex ple> 4 MB for 4 SIMM 1 MB. I'm going to solder it. But I don't know if it's necessary. Which one ple> the software will support such an extension. I have 2 meters on my computer. 512kb Pentagon, the rest is ATM-turbo. Piece useful, although, other than in real commander, I haven’t found a use for it yet. But You can create a full virtual disk and still have some space left in memory! All quickly copied... ;)

From Alexander Pekhimenko To All 29 October 2006

Hello, p@lex The extension is as follows: up to 1 MB in Pentagon bits 5,6,7 #7ffd, then up to 4 MB bits d3,d4 #dffd, and a switch via ATM bits 0,1,2,3,4 #dffd up to 4MB. Circuit in handwritten, scanned and published.