Question

Write a PIC18Fxx2 assembly program that takes the variable A and save into B in inverted the 110010102, then the program finishes with B 010100112-The 1. bit order. For example, if A variable A shall preserve the original value at the end of the program execution. The program shall be implemented using any of the loop and shift techniques discussed in class. 2. Write a PIC18Fxx2 assembly program that makes the calculus of the first eigth (8) terms of the Fibonacci series. This is define by Fn-F1+Fa-2, with initial values Fo 0, and F-1. If the following code implements de series in C language. ***oauuseeesseu**. This program calculates Fibonacci numbers within an 8-bit range #include <stdio.h> unsigned char fibo: //fn-2 unsigned char fibl: //fn-1 unsigned char fib2: //fn unsigned char n: //series current value void main (void)t loop: fibo 0 n 2: //the first two numbers are known, so start at n 2 do t fib2 fibl fibo: printf ("Values: n: 1u, fn-2: Vtu, fn-1: l8u, fn: tuIn".n,flb0,fibl,fib2) n+1i //update numbers held, discarding fa-2 fibo fibl: //first overwrite fn-2 fibl fib2: while (nc9)i //when reversing down, we will subtract fn-1 from f, to form new fn-2 do t n--i //update numbers held, discarding fn fib2 fibl; //first overwrite fa fibi fibo; fibo fib2 fibl; printf ("Values: n: tu, fn-2: 1tu, fn-1: 1u,n:uIn",n,fibo, fibl,fib2) while (fibo>o): goto loop; NOTE: Skip the output instructions (printf) in assembly.

Answer 1

ANSWER:

1.

MOV AL, 11001010 ;setting value
MOV CL, 7
MOV DH, 1
MOV DL, 0

loopData: PUSH AX
   AND AL, DH
   PUSH CX
   MOV CL, DL
   SHR AL, CL
   POP CX
   MOV BH, AL
   SHL BH,CL
   OR CH,BH
   DEC CL
   INC DL
   SHL DH, 1
   POP AX
   CMP DL, 8
   JE END
   JMP LOOP1

END: