1. Which register is mandatory to get loaded at the beginningbefore loading or transferring the contents to correspondingdestination registers?

INDF	W
FSR	PCL

2. You are given the following PIC16F877 assembly function:

RLF Reg4, 0

If Reg4 = 0xE6, and Carry bit = 0,what values are in the working register and the carry bit when thisfunction isexecuted?

W=0xCC, C=1	W=0x73, C=0
W=0xCC, C=0	W=0x73, C=1

3. You are given the following PIC16F877 assembly function:

SWAPF REG3, 0

Assume (REG3)=d24, what values are inthe working register when this function isexecuted?

W = 0x18	W = 0x24
W = 0x42	W = 0x81

4. Which of the following instruction is useful for bitmasking?

andlw	iorlw
xorlw	comf

1. You are asked to check whether LED connected at PortA.1 is ON,which of the following instruction will you use?

BTFSS Port A ,1	BSF Port A ,1
BCF Port A ,1	COMF Port A

2. You are given the following PIC16F877 assembly function:

rrf REG6 , 0

Assume W=0xA3, C=0 and REG6=E6, whichis the correct answer when this function isexecuted?

W = 0xA3	REG6 = 0x73
W = 0x??	W = 0x73

3. Stack consists of ___ , _______ bit registers.

8 , 11	8 , 13
11, 8	13 , 8

4. How many unconditional branch instruction are available inPIC16F877?

1	3
2	none

5. Which instruction is used as multiply by 2 in PIC16F877?

	RLF	RFL
	RRF	RLeft
Modular programming mostly relies on the use of_________.
	assembly language		zeros and ones
	subroutines		interrupts

Answer rating: 100% (QA)

The detailed answer for the above question is provided below 1 c FSR File Select Register is mandatory to get loaded at the beginning before loading or transferring the contents to corresponding desti... View the full answer