... 01=0000DS =33 3F ES =33 3F SS =33 3F CS =33 3F IP=0105 NV UP EI PL NZ NA PO NC 33 3F:0105 88F9 MOV CL,BH -T AX=67FE BX=67FE CX=0067 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000DS =33 3F ES =33 3F SS =33 3F CS =33 3F ... NA PO NC 33 3F:0100 B8FE67 MOV AX,67FE-T AX=67FE BX=0000 CX=0000 DX=0000 SP-FFEE BP=0000 SI=0000 DI=0000DS -33 3F ES -33 3F SS -33 3F CS =33 3F IP=01 03 NV UP EI PL NZ NA PO NC 33 3F:01 03 89C3 MOV BX,AX ... instructions, one by one, using the T command. The session under DEBUG should look like this: -A 33 3F:0100 MOV AX.67FE 33 3F:01 03 MOV BX,AX 33 3F:0105 MOV CL,BH 33 3F:0107 MOV CH,BL 33 3F:0109-R IPIP...