clean run, no breakpoint:
         CX=3

CC       patch=CC     trap: vector=3 return IP=7C03 (site=7C02, +1)  debugger restores IP=7C02
         after resume: CX=3 (expected 3), final IP=7C05
CD 03    patch=CD03   trap: vector=3 return IP=7C04 (site=7C02, +2)  debugger restores IP=7C03
         after resume: CX=0 (expected 3), final IP=7C64

RESULT: PASS