MEMORY PAGING IN LOW 16kB

[Black_Cat]

Only one 16kB ram page ?

Only all ROM & RAM page in CPU0(#0000-#3FFF) window

If 128kB memory is extended to 1-4MB why can't be extended also russian cache sram to more than 16 or 32kB ?

Also on new ZX clones ?

What ZX clones use this mode ?

This is an example of control in the window CPU0 for promising clones.

This don't need any hardware modification on FPGA clones and Garry Lancasted can ported RESIDOS to any ZX clone with low 16kB ram paging (but need also selectable writeprotect) and IDE ports.

Let Garry Lancasted porting RESIDOS for exUSSR standards. It's easier.

---------- Post added at 22:45 ---------- Previous post was at 22:38 ----------

Is impossible connect to this ZX-BUS connector any old ZX interface with external memory. This interfaces must be modified for work on russian clones. (can connect external memory only if in low 16kB is set rom - external interface set signal /RDROM to log.1).

Yes, ZXBUS it is not NemoBus