8085 Program to exchange content of memory locations
Following easy and simple 8085 program will exchange content of two memory locations.
You will find explanation below the code.
0700 10
0701 20
LDA 0700 # A = 10 || B = N.A. || 0700 = 10 || 0701 = 20
MOV B A # A = 10 || B = 10 || 0700 = 10 || 0701 = 20
LDA 0701 # A = 20 || B = 10 || 0700 = 10 || 0701 = 20
STA 0700 # A = 20 || B = 10 || 0700 = 20 || 0701 = 20
MOV A B # A = 10 || B = 10 || 0700 = 10 || 0701 = 20
STA 0701 # A = 10 || B = 10 || 0700 = 10 || 0701 = 10
HLT
LDA 0700 – A 24 bits (3 bytes) command which will load content of memory location 0700 in register A i.e. Accumulator.
MOV B A – A 8 bits command which will copy and load data of Accumulator to register B.
LDA 0701 – This command will load content of memory location 0701 in register A i.e. Accumulator.
STA 0700 – A 24 bits command which will store data of accumulator in memory location 0700.
MOV A B – A 8 bits command which will copy and load data of register B to Accumulator.
STA 0701 – A 24 bits command which will store data of accumulator in memory location 0701.
HLT – This command is use to put microprocessor on halt.
Program to exchange content of memory locations
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