;
; *** ASSEMBLE AND BUILD MB: DRIVER TEST ROUTINE.  CONSULT COMMENTS
;	WITHIN PROGRAM TO DETERMINE WHAT IS BEING DONE AND PROPER
;	RETURN STATUS TO EXPECT.
;
.enable substitution
MAC MBTST1,MBTST1/-SP=MBDRV/ML,MBTST1
TKB MBTST1/DA,MBTST1/-SP=MBTST1