Objective
Program in “LEX” to count number of Identifiers and Keywords.

digit
letter
%{
int count1=0;
int count2=0;
%}
%%
intI
floatI
char {count++;printf(%s is keyword,yytext);}
{letter}I({letter}I{digit})*{count2++;}
+ {printf(%s is not keyword,yytext);}
.I\n {ECHO;}
%%
main()
{
yylex();
printf(%d no of keyword %d no of id,count1,count2);
}
....etc

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plz guys, anyone having uart ppt......forward that meatirial ....etc

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Objective
Program in “LEX” to count number of Characters, Words, Lines.

%{
int nchar=0,nword=0,nline=0;
#include
%}
%%
\n {nline++;nchar++;}
+ {nword++;nchar+=yyleng;}
. {nchar++;}
%%
int main()
{
yylex();
printf(%d%d%d,nchar,nword,nline);
}
....etc

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import java.io.*;
class Arraysum
{
int temp;
int sum(int a,int n)
{
if(n==1)
return a;
else
{
temp =sum(a,n-1);
temp=temp+a;
return temp;
}
}
}
class Newarray
{
public static void main(String args)throws IOException
{
DataInputStream dis=new DataInputStream(System.in);
System.out.println(Enter limit);
int n=Integer.parseInt(dis.readLine());
int a=new int;
System.out.println(Enter the array);


fo ....etc

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Objective
Program to count the number of identifiers in a c file
Program:

%{
#include
int id=0, i;
%}
%%
int ||
float ||
double ||
char ||
bool {
i = 0;
while (yytext != ';')
{
if(yytext == ',')
id++;
i++;
}
....etc

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Digital frequency meter using DMA Terminal Count stop method
Abstract-
This paper presents a new wide-range speed
measurement method, using the direct memory access
(DMA) terminal count register(TCR). The DMA
method is based on both pulse counting in the constant
sampling time at terminal count stop pin of a DMA
controller. The hardware configuration and algorithms
for a microcontroller implementation are also
presented. The proposed method is suitable in systems
using microcontrollers with DMA controller and
timers. Li ....etc

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Objective
Program in “LEX” to count number of vowels and consonants .

%{
int count1=0;
int count2=0;
%}
%%
aIeIiIoIu {printf(%s is vowel,yytext);count1++;}
{printf(%s is constonant,yytext);count2++;}
.I\n {ECHO;}
%%
main()
{
yylex();
printf(%d Vowel =%d constonant=,count1,count2);
}
....etc

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PROGRAM TO FIND THE SUM OF ARRAY USING RECURSION ....etc

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A ROBUST UART ARCHITECTURE BASED ON RECURSIVE RUNNING SUM FILTER FOR BETTER NOISE PERFORMANCE
Universal Asynchronous Receiver Transmitter (UART) based on Recursive Running Sum (RRS) filter. UART is used for asynchronous serial data communication between remote embedded systems. The robust UART core used in this project, utilizes recursive running sum filter to remove noisy samples. Input data signal is directly sampled with system clock and samples are accumulated over a window size . The window size is user programmable and it should be set ....etc

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Objective
Program in “LEX” to count the verb in a given line of text.

%{
%}
%%
isI
areI
amI printf(%s is verb,yytext );
+ {printf(%s is not a verb,yytext);}
.I\n {ECHO;}
%%
main()
{
yylex();
}
....etc

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