BAIL is a debugging aid for SAIL programs.  In many respects BAIL is like
DDT or RAID, except that BAIL is oriented towards SAIL and knows about
SAIL data types, stack structure, and procedure implementation.

To use BAIL, specify /27B on the binary term when compiling.
Examples:	.R SAIL			or	.COM FOO.SAI(27B,)
		*FOO/27B←FOO.SAI

Further documentation is on BAIL.DOC[DOC,AIL].