may 2011 Sixth Semester

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7. Write about the jump statement
10. Write a program to add two bit numbers using 8051

5. Write a program to mask the 0
th
&7
th
bit using 8051?
MOV A,#data
ANL A
MOV DPTR,#4500
MOVX @DPTR,A LOOP SJMP LOOP
6. Write about CALL statement in 8051?
There are two subroutine CALL instructions.they are
*LCALL(Long CALL)
*ACALL(Absolute CALL) Each increments the pc to the st byte of the instruction & pushes them into the stack.

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7. Write about the jump statement
There are three forms of jump.they are
LJMP(Long-jump)-address 16
AJMP(Absolute jump)-address 11
Sjmp(short jump)-relative address
8. Write a program to load accumulator DPH & DPL using 8051?
MOV A
MOV DPH,A
MOV DPL,A
9. Write a program to finds complement using 8051?
MOV AR CPL A INCA
10. Write a program to add two bit numbers using 8051?
MOV AH ADD AH

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