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.bss symbol, length, align.lcomm.
.extended flonums.extended expects zero or more flonums, separated by commas; for
each flonum, ‘.extended’ emits an ieee extended-format (80-bit)
floating-point number.
.leafproc call-lab, bal-labcallj instruction to enable faster calls of leaf
procedures. If a procedure is known to call no other procedures, you
may define an entry point that skips procedure prolog code (and that does
not depend on system-supplied saved context), and declare it as the
bal-lab using ‘.leafproc’. If the procedure also has an
entry point that goes through the normal prolog, you can specify that
entry point as call-lab.
A ‘.leafproc’ declaration is meant for use in conjunction with the
optimized call instruction ‘callj’; the directive records the data
needed later to choose between converting the ‘callj’ into a
bal or a call.
call-lab is optional; if only one argument is present, or if the
two arguments are identical, the single argument is assumed to be the
bal entry point.
.sysproc name, indexBoth arguments are required; index must be between 0 and 31 (inclusive).