Multiplication Of Two 8 Bit Numbers ALP

Program Name

Write a Assembly Language Program for Multiplication Of Two 8 Bit Numbers .

Theory

Instruction Mnemonic	Operand	Comments
LDA	8101	Load Accumulator with contents from memory address 8101
MOV	C,A	Move contents of accumulator and carry to register C
LDA	8100	Load Accumulator with contents from memory address 8100
MOV	B,A	Move contents of accumulator and carry to register B
XRA	A	The content of accumulator are exclusive OR with itself
MOV	D,A	Move contents of accumulator and carry to register D
ADD	B	Add the content of register B with the contents of accumulator
JNC	XY	Jump to memory address 800F if the carry flag is set to 0
INR	D	The contents of register D are incremented by 1 and the result is stored in register D
DCR	C	The contents of register C are decremented by 1 and the result is stored in register C
JNZ	YZ	Jump to memory address 800A if the zero flag is 0
STA	8102	The contents of accumulator are copied into the memory address 8102
MOV	A,D	Move contents of register D and carry to accumulator
STA	8103	The contents of accumulator are copied into the memory address 8103
HLT		stop

Program Code


LDA	8101
MOV	C,A
LDA	8100
MOV	B,A
XRA	A
MOV	D,A
ADD	B
JNC	XY
INR	D
DCR	C
JNZ	YZ
STA	8102
MOV	A,D
STA	8103
HLT

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