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Write CMOS clock

Table of Contents

This routine allows the onboard CMOS clock to be set. For systems without a CMOS clock, the MOS passes the calls to sideways ROM's for support.

The first byte of the parameter block is a function code representing the action required. The rest of the block's content (including its size) depends on that function.

Function Action Format of input
8 Set time "HH:MM:SS"
16 Set date "Day,DD Mon Year"
24 Set date and time "Day,DD Mon Year.HH:MM:SS"