Question

(f) and (g) please

f and g please

letters Question 2 Indirect addressing mode in assembly language is sanilar to pointers in C. Answer the following questions: (1 point) a) How many 8-bit registers can a FSR access in the PICI8F452 MCU? b) Write the assembly language command to load the address of the variable with name: PVal into one of the FSR? (2 points) (2 points) (2 points) c) What is the meaning of: movf PREINC2, F? d) What is the meaning of: movff POSTİNCI, PORTA? e) Write an assembly language program to copy the values stored at addresses 32H-37H to PORTC using indirect addressing mode. There should be a delay of 5 ms between each copy action. Assume you have the LoopTime subroutine, which implements a delay of 10 ms. (6 points) (6 points) f Given the following code answer the questions below movlw 0xF9 addlw 0x4A 1) What is the content of the W register after the moviw OxF9 command? 2) What is the content of the W register after the addlw 0x4A command? 3) What is the result of the addition (in HEX) if the numbers were unsigned 4) What will the command "movlw 0xF9, F" do? Explain g) What is the value of j (in HEX) after the execution of the following code? (3point signed char i, etters Question 2 Indirect addressing mode in assembly language is stinilar to pointers in C. Answer the following questions: (I point) a) How many 8-bit registers can a FSR access in the PICI8F452 MCU? b) Write the assembly language command to load the address of the variable with name: P Val into one (2 points) (2 points) (2 points) of the FSR? c) What is the meaning of: movf PREINC2, F? d) What is the meaning of: movff POSTİNCI, PORTA? e) Write an assembly language program to copy the values stored at addresses 32H-37H to PORTC using indirect addressing mode. There should be a delay of 5 ms between each copy action. Assume you have the LoopTime subroutine, which implements a delay of 10 ms. Given the following code answer the questions below (6 points) (6 points) movlw 0xF addlw 0x4A 1) What is the content of the W register after the movlw 0xF9 command? 2) What is the content of the W register after the addlw 0x4A command? 3) What is the result of the addition (in HEX) if the numbers were unsigned? 4) What will the command ."movlw 0xF9, P" do? Explain What is the value of j (in HEX) after the execution of the following code? g) (3point signed char i,

Answer 1

Answer :- f)1) The value of W is 0xF9.

Answer :- f)2) The value of W = 0xF9 + 0x4A = 0x143. But W is of 8-bit size, hence W 0x43.

Answer :- f)3) The result is 0x143.

Answer :- f)4) This is not a correct syntax for MOVLW instruction. The syntax for this instruction is-

MOVLW k

where k is the constant value ranging from 0 to 255.

Answer :- g) The value of j is 2-bit right shifted of the value of i i.e. 1011_0110. The MSB bit is preserved. So j = 1110_1101 = 0xED.