Write a programmers to Exchange the contents of memory locations using microprocessor simulator
Statement : Exchange the contents of memory locations 2000H and 4000H.
Program 1:
LDA 2000H : “Get the contents of memory location 2000H into accumulator”
MOV B, A : “Save the contents into B register”
LDA 4000H : “Get the contents of memory location 4000Hinto accumulator”
STA 2000H : “Store the contents of accumulator at address 2000H”
MOV A, B : “Get the saved contents back into A register”
STA 4000H : “Store the contents of accumulator at address 4000H”
Program 2:
LXI H 2000H : “Initialize HL register pair as a pointer to memory location 2000H.”
LXI D 4000H : “Initialize DE register pair as a pointer to memory location 4000H.”
MOV B, M : “Get the contents of memory location 2000H into B register.”
LDAX D : “Get the contents of memory location 4000H into A register.”
MOV M, A : “Store the contents of A register into memory location 2000H.”
MOV A, B : “Copy the contents of B register into accumulator.”
STAX D : “Store the contents of A register into memory location 4000H.”
HLT : “Terminate program execution.”
Program 1:
LDA 2000H : “Get the contents of memory location 2000H into accumulator”
MOV B, A : “Save the contents into B register”
LDA 4000H : “Get the contents of memory location 4000Hinto accumulator”
STA 2000H : “Store the contents of accumulator at address 2000H”
MOV A, B : “Get the saved contents back into A register”
STA 4000H : “Store the contents of accumulator at address 4000H”
Program 2:
LXI H 2000H : “Initialize HL register pair as a pointer to memory location 2000H.”
LXI D 4000H : “Initialize DE register pair as a pointer to memory location 4000H.”
MOV B, M : “Get the contents of memory location 2000H into B register.”
LDAX D : “Get the contents of memory location 4000H into A register.”
MOV M, A : “Store the contents of A register into memory location 2000H.”
MOV A, B : “Copy the contents of B register into accumulator.”
STAX D : “Store the contents of A register into memory location 4000H.”
HLT : “Terminate program execution.”
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