programb20 - Microprocessors & Applications (UPTU) Appendix...

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Appendix B  Explanation : Consider that a word of data is present in the AX register and 2 nd word of data is present in the BX register. We have to multiply the word in AX with the word in BX. Using MUL instruction, multiply the contents of the 2 registers. The multiplication of the two 16 bit numbers may result into a 32 bit number. So result is stored in the DX and AX register. The MSB of result is stored in the DX register and LSB of result in AX register. AX = 1234 H 1234 H BX = 0100 H × 0100 H 123400 H  Algorithm : Step I : Initialise the data segment. Step II : Get the first number in AX register. Step III : Get the second number in BX register. Step IV : Multiply the two 16 bit numbers. Step V : Display the result. Step VI : Stop  Flowchart : Refer flowchart 20. Flowchart 20  Program : .model small .data a dw 1234H b dw 0100H .code mov ax, @data ; Initialize data section mov ds, ax mov ax, a ; Load number1 in ax
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This note was uploaded on 08/04/2011 for the course ECON 101 taught by Professor Lucky during the Spring '11 term at Silver Lake.

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programb20 - Microprocessors & Applications (UPTU) Appendix...

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