Write an Assembly Language Programs (ALP) to count positive and negative numbers from an array

Second Year Computer Engineering Microprocessor Programs:

Microprocessor Lab:

Practical 1:

  1.Write an Assembly Language Programs (ALP) to  count positive and negative numbers from an array:

---------------------------------------------------------------------------------------------------------------------------------
%macro print 2
mov rax,1
mov rdi,1
mov rsi,%1
mov rdx,%2
syscall
%endmacro

section .data
msg db "Counting +ve and -ve elements of an array.",10
msglen equ $-msg
msg1 db "Positive nos. are : "
msglen1 equ $-msg1
msg2 db "Negetive nos. are :  "
msglen2 equ $-msg2

array dq 1234h,90ffh,8700h,8800h,8a9fh,0a0dh,0200h
pcnt db 0
ncnt db 0
newline db 0xa

section .bss

dispbuff resb 2

section .txt

global _start
_start:
print msg,msglen

mov rsi,array
mov rcx,05

again:
        bt qword[rsi],63
        jnc pnxt
        inc byte[ncnt]
        jmp pskip
  pnxt: inc byte[pcnt]
  pskip: inc rsi
  loop again
  print msg1,msglen1
  mov bl,[pcnt]
  call disp_result
  print newline,1

print msg2,msglen2
mov bl,[ncnt]
call disp_result
print newline,1

mov rax,60
mov rdi,0
Syscall

disp_result:
             mov rdi,dispbuff
             mov rcx,02
        dispup1:
                 rol bl,4
                 mov dl,bl
                 and dl,0fh
                 add dl,30h
                 cmp dl,39h
                 jbe dispskip1
                 add dl,07h
       dispskip1:
                  mov [rdi],dl
                  inc rdi
                  loop dispup1
                  print dispbuff,2
             ret

----------------------------------------------------------------------------------------------------------------------------------
;********************************************Output*************************************
;admin1@admin:~$ nasm -f elf64 Num64.asm
;admin1@admin:~$ ld -o Num64 Num64.o
;admin1@admin:~$ ./Num64
;Counting +ve and -ve elements of an array.
;Positive nos. are : 03
;Negetive nos. are :  02


Location: India

Comments

Post a Comment

Popular posts from this blog

Write C++ program to maintain club member‘s information using singly linked list. Store student PRN and Name.

Second Year Computer Engineering Data Structure Programs: Data Structure Lab: Practical B14: Department of Computer Engineering has student's club named 'Pinnacle Club'. Students of Second, third and final year of department can be granted membership on request. Similarly one may cancel the membership of club. First node is reserved for president of club and last node is reserved for secretary of club. Write C++ program to maintain club member‘s information using singly linked list. Store student PRN and Name. Write functions to a) Add and delete the members as well as president or even secretary. b) Compute total number of members of club c) Display members d) Display list in reverse order using recursion e) Two linked lists exists for two divisions. Concatenate two lists. ------------------------------------------------------------------------------------------------------------------------------- #include <iostream> #include <string.h> usin...
Read more

Implement C++ program for expression conversion as infix to postfix and its evaluation using stack.

Second Year Computer Engineering Data Structure Programs: Data Structure Lab: Practical C25: Implement C++ program for expression conversion as infix to postfix and its evaluation using stack based on given conditions i. Operands and operator, both must be single character. ii. Input Postfix expression must be in a desired format. iii. Only '+', '-', '*' and '/ ' operators are expected. ---------------------------------------------------------------------------------------------------------------------------------- #include<iostream> #include<conio.h> using namespace std; class stack {  public:   char stack_array[50];   int top;   stack()   {     top=-1;   } void push(char symbol) {  if(full())       cout<<"\nStack overflow:\n";     else     { top=top+1;       stack_array[top]=symbol;      } } char pop() {   if(empty())...
Read more

Write C++ program for simulating job queue. Write functions to add job and delete job from queue.

Second Year Computer Engineering Data Structure Programs: Data Structure Lab: Practical D28: Queues are frequently used in computer programming, and a typical example is the creation of a job queue by an operating system. If the operating system does not use priorities, then the jobs are processed in the order they enter the system. Write C++ program for simulating job queue. Write functions to add job and delete job from queue. ---------------------------------------------------------------------------------------------------------------------------------- #include <iostream> #define MAX 10 using namespace std; struct queue {       int data[MAX]; int front,rear; }; class Queue {    struct queue q;    public:       Queue(){q.front=q.rear=-1;}       int isempty();       int isfull();       void enqueue(int);       int delqueue();     ...
Read more