INT ED - IBM ROM BASIC - used while in interpreter
Notes:  called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
BASIC.COM/BASICA.COM do not restore vector on termination
INT 80 through INT ED are modified but not restored by Direct Access
v4.0, and may be left dangling by other programs written with the
same version of compiled BASIC
SeeAlso: INT EE"BASIC"

See also: EC

ED - IBM ROM BASIC - used while in interpreter