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Save RAM file to Flash Memory or UV Eprom file area in slot C (files to UV Eprom only in slot 3).
The routine does automatical "deletion" (overwrite) of existing file that matches the filename. file entry name. This system call was implemented in OZ V4.7.
Should the actual process of blowing the file image fail, the new File Entry will be marked as deleted, if possible.
The screen is turned off while saving a file to flash file area that is in the same slot as the OZ ROM. During saving, no interference should happen from Blink, because the Blink reads the font bitmaps each 1/100 second: If the screen were enabled when a byte is written to an address space that is part of OZ ROM chip, the font bitmaps would suddenly be unavailable which would create violent screen flickering during chip command mode. Further, and most importantly, to avoid the Blink doing read-cycles while chip is in command mode.
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