AMD64b64

This directory contains files relating to 64-bit BCPL using native code
on AMD64 machines, typically under Linux.

BCPL code ti compiled to 64-bit sial using bcpl2sial with the t64 option
running under cintsys64. The sial code is translated into AMD64 assembly
language using a CLI command of the form:

c nbamd64b64 dir name

