Saturday, 22 February 2014

Algorithm for 8 bit addition in 8051

ADDRESS	LABEL	MNEMONICS	HEX CODE	DESCRIPTION
4100		CLRC	C3	Clear C register
4101		MOV A,#34	74	Move data to A
4102			34
4103		ADD A,#78	24	Add data to A
4104			78
4105		MOV DPTR, # 4150	90	Move the data to the DPTR
4106			50
4107			41
4108		MOVX @ DPTR	70	Move data immediately A to DPTR
4109		INC A DPTR	05	Increment DPTR
410A		MOV A,#12	74	Move data to A
410B			12
410C		ADD A,#73	24	Add immediate data with A
410D			73
410E		MOVX @ DPTR, A	70	Move A to DPTR
410F		SJMP 410F	80	Stop the program
4111			0F
4112			41