Future Vision BIE Future Vision BIE


ONE STOP FOR ALL STUDY MATERIALS & LAB PROGRAMS


E MENU Whatsapp Share Join Telegram, to get Instant Updates
× NOTE! Click on MENU to Browse between Subjects...
Advertisement

SYSTEM SOFTWARE AND OPERATING SYSTEM LABORATORY

[As per Choice Based Credit System (CBCS) scheme]

(Effective from the academic year 2017 - 2018)

SEMESTER - VI

Subject Code 17CSL67

IA Marks 40

Number of Lecture Hours/Week 01I + 02P

Exam Marks 60



17CSL67 - SYSTEM SOFTWARE AND OPERATING SYSTEM LABORATORY

Program 5

5. Design, develop and implement a C/Java program to generate the machine code using Triples for the statement A = -B * (C +D) whose intermediate code in three-address form,
T1 = -B
T2 = C + D
T3 = T1 + T2
A = T3



Advertisement
Download the Program - code
Advertisement 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>
char op[2],arg1[5],arg2[5],result[5];
void main()
{
	FILE *fp1,*fp2;
	fp1=fopen("input.txt","r");
	fp2=fopen("output.txt","w");
	while(!feof(fp1))
	{
		fscanf(fp1,"%s%s%s%s",result,arg1,op,arg2);
		if(strcmp(op,"+")==0)
		{
			fprintf(fp2,"\nMOV R0,%s",arg1);
			fprintf(fp2,"\nADD R0,%s",arg2);
			fprintf(fp2,"\nMOV %s,R0",result);
		}
		if(strcmp(op,"*")==0)
		{
			fprintf(fp2,"\nMOV R0,%s",arg1);
			fprintf(fp2,"\nMUL R0,%s",arg2);
			fprintf(fp2,"\nMOV %s,R0",result);
		}
		if(strcmp(op,"-")==0)
		{
			fprintf(fp2,"\nMOV R0,%s",arg1);
			fprintf(fp2,"\nSUB R0,%s",arg2);
			fprintf(fp2,"\nMOV %s,R0",result);
		}
		if(strcmp(op,"/")==0)
		{
			fprintf(fp2,"\nMOV R0,%s",arg1);
			fprintf(fp2,"\nDIV R0,%s",arg2);
			fprintf(fp2,"\nMOV %s,R0",result);
		}
		if(strcmp(op,"=")==0)
		{
			fprintf(fp2,"\nMOV R0,%s",arg1);
			fprintf(fp2,"\nMOV %s,R0",result);
		}
	}
	fclose(fp1);
	fclose(fp2);
}

Output


Program Output

× Note Page Number is specified to navigate between Pages...
SYS = Syllabus
P = Program

-ADMIN



× Note Do Share the website link with Your Friends and known Students...

-ADMIN

lIKE OUR CONTENT SUPPORT US BY FOLLOWING US ON INSTAGRAM : @futurevisionbie

Latest Updates are also posted in instagram as Stories...

For immediate Notification Join the Telegram Channel



Advertisement