Page Comparison

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IN:
     C = number of bytes to copy (0 ... 255)
     HL = local source pointer
     BDE = extended destination pointer
OUT:
     Fc = 0 always

Registers changed after return:
     A.BCDEHL/IXIY same
     .F....../.... different

Notes

Bank boundary crossing of destination is automatically handled, if number of bytes to read passes between to banks then B is incremented (typically when writing contents from a File Entry on a File Card).

Bugs

The HL source pointer has to be in segment 0 or 1. The call does not work if the source pointer defines memory in segments 2 or 3.

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