Subtraction of two 16-bit numbers

Chitra Microprocessor

Aim: – To write an assembly language program for subtraction of two 16-bit numbers.

	MOV AX, FIRST
	SUB AX, SECOND
        MOV DIFF, AX
        MOV AX, 00
        ADC AX, 00
	MOV DIFF+2, AX
        END

Result: Subtraction of two 16-bit numbers is obtained.

One thought on “Subtraction of two 16-bit numbers”

Sherjeel says:

November 29, 2012 at 10:35 pm

how to subtract three integers using only 16 bit registers

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