PAGE.1
1. Draw the block diagram of 8051 and list all register in each function
unit which are used by programmer.
2. Explain the operation of stack in 8051.
3. What is the PSW in 8051.
4. Execute the following instructions. Please note each instruction is not
independent.
PAGE.2
WHAT IS THE FUNCTION PREFORMED BY THIS PORGRAM? PLEASE ALSO FIND THE
RESULT OF EACH INSTRUCTION.
ORG 0000H
MOV R0, #00H
MOV R1, R0
MOV R2, #08H
MOV A, @R0
CLR C
AGAIN RRC A
JNC NEXT
INC R1
NEXT DJNZ R2 AGAIN
END
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