.MODEL SMALL
        .DATA
VAR1    DW 1234h
        .CODE
        .STARTUP

        ; Compare two unsigned numbers
          MOV AX, 1
          CMP AX, 5
          JE IFEQUAL

          MOV AX, 5
          CMP AX, 5
          JE IFEQUAL

          MOV AX, 100

IFEQUAL:                    ; AX-?
          MOV BX, 34
          CMP AX, BX
          JB IFBELOW1       ; unsigned!

          MOV BX, 0

IFBELOW1: MOV BX, 2

IFBELOW2: NEG BX          ; BX-?
          CMP AX, BX
          JB IFBELOW2     ; unsigned!

IFLESS:
          NEG BX          ; BX-?
          CMP AX, BX
          JL IFLESS       ; signed!

        ;If content of VAR1 is negative, set it to zero
        ;otherwise divide it by 2 and store back in VAR1
        ; In C: if(VAR1<0) VAR1=0
        ;       else VAR1/=2;
          CMP VAR1, 0
          JG DIVISION
          MOV VAR1, 0
          JMP DONE
DIVISION: SAR VAR1,1 ;Equivalent to division by 2

DONE:

        .EXIT
        END