MEMORY PAGING IN LOW 16kB

[VELESOFT]

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

TRDOS emulation in RESIDOS will in developlent. Actually can Residos access to FA16 partitions, open/create TAP files, work with sequential files, run SNA,Z80 snapshots, support save/load tasks (task manager in NMI menu), direct save/load files from ZX basic to FAT16. You can open one TAP file for loading and next TAP for saving. Big ram in low16kB enable switching between systems via one OUT xx,xx command (also in ZX basic). On Pentagon will theoretically possible acive RESIDOS via one OUT, open XXX.TRD file on fat 16 for sequential read and write this image file to real FDD. Or write sector copy of FDD to fat16 file. Transfer data between TRDOS and FAT16 is possible.

http://www.worldofspectrum.org/residos/

It's way as can work with TAP files and SNApshots on russian machines.

Yes, ZXBUS it is not NemoBus

On PENTAGON documantation is text " ZX-BUS (NEMO BUS) "
Pentagon 1024 use very compatible bus with original ZX Spectrum machines, only /ROMSC signal is on other pin (15).

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