Write a subroutine to divide two unsigned 16-bit numbers.

Given code to change from 8-bit to 16-bit:

; Define registers DIVIDND EQU DIVISOR EQU REMAINDR EQU COUNT EQU 0x10 0x11 Ox12 0x13 MAIN: ; Number to be divided MOVLW MOVWF MOVLW MOVWF RCALL BRA OxFF DIVIDND OxOA DIVISOR DIVIDE HERE ; Divisor ;Call divide routine HERE: DIVIDE: LOOP: MOVLW MOVWF CLRF BCF RLCF RLCF MOVF SUBWF BTFSS BRA 0x08 ;Set up counter for 8 rotations COUNT REMAINDR ;Clear remainder register STATUS, C,0 ;Clear carry flag DIVIDND ; Take seventh bit in Carry flag REMAINDR ;Place carry flag in remainder DIVISOR, W ;Get divisor in WREG REMAINDR, O ;Subtract divisor from remainder ;- save in WREG STATUS, C,0 ;Test carry flag RESETO ;If dividend <divisor, go to ;reset carry flag SETO: DIVIDND, 0,0 ;If dividend > divisor, set ;carry flag REMAINDR, 0 ; Save remainder for next ; operation NEXT DIVIDND, 0,0;No quotient – reset carry flag COUNT, 1,0 ; One operation complete – ; decrement count LOOP ;Are eight rotations complete? ;If not go back BSF MOVWF RESETO: NEXT: BRA BCF DECF BNZ RETURN END Show transcribed image text ; Define registers DIVIDND EQU DIVISOR EQU REMAINDR EQU COUNT EQU 0x10 0x11 Ox12 0x13 MAIN: ; Number to be divided MOVLW MOVWF MOVLW MOVWF RCALL BRA OxFF DIVIDND OxOA DIVISOR DIVIDE HERE ; Divisor ;Call divide routine HERE: DIVIDE: LOOP: MOVLW MOVWF CLRF BCF RLCF RLCF MOVF SUBWF BTFSS BRA 0x08 ;Set up counter for 8 rotations COUNT REMAINDR ;Clear remainder register STATUS, C,0 ;Clear carry flag DIVIDND ; Take seventh bit in Carry flag REMAINDR ;Place carry flag in remainder DIVISOR, W ;Get divisor in WREG REMAINDR, O ;Subtract divisor from remainder ;- save in WREG STATUS, C,0 ;Test carry flag RESETO ;If dividend divisor, set ;carry flag REMAINDR, 0 ; Save remainder for next ; operation NEXT DIVIDND, 0,0;No quotient – reset carry flag COUNT, 1,0 ; One operation complete – ; decrement count LOOP ;Are eight rotations complete? ;If not go back BSF MOVWF RESETO: NEXT: BRA BCF DECF BNZ RETURN END

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Answer to Write a subroutine to divide two unsigned 16-bit numbers. Given code to change from 8-bit to 16-bit:…