Create an HLA function that loops through a single string argument and counts all the upper case letters. This function should have the following signature: procedure countUpperCase( stringData : dword ); @nodisplay; @noframe; This function should return into EAX an int32 value which is the number of uppercase letters (that is, counts all the letters A-Z) found in the stringData parameter. To receive full credit, your countUpperCase( ) procedure must not allocate any storage. You must use the utility functions gets and puts provided here http://www.howardstahl.com/cs17/cs17Final.hla by downloading this file. These are the some of the same routines you used in Unit 15. Once you acquire the file, you can include it in your code by saying: #include( "cs17Final.hla" ); Your function should replicate the following C code: int countUpperCase( char * stringData ) {

int i = 0; int count = 0; while ( stringData[ i ] != NULL ) { int letter = stringData[ i ]; // uppercase letters are ASCII(65) thru ASCII(90) if (letter >= 65 && letter <= 90) {

count = count + 1;

}

i = i + 1;

} return( count );

}

IN ORDER TO RECEIVE FULL CREDIT, YOU MUST USE THE TEMPLATE SOLUTION SHOWN BELOW. Of course, you will need to add code to the function to implement the desired algorithm explained above. In addition, you will need to prepare and push the parameters to the function.

// String Parameter Template Solution For CS 17 Final // CS 17 Students must use this template as the basis for their solution. // I hope it will help simplify your development task. // Please look at the TODO: notes below

program StringProgram; #include( "stdlib.hhf" ); // The file cs17Final.hla is downloadable from the hyperlink shown above. // Place it in the same folder as this hla file you are working on

#include( "cs17Final.hla" );

static stringData : dword;

// TODO: CS 17 Students add code below to implement this function // Several hints are supplied

procedure countUpperCase( stringData : dword ); @nodisplay; @noframe; static dReturnAddress : dword; begin countUpperCase; // TODO: CS 17 Students need to preserve registers used pop( dReturnAddress ); // this is the return address

// push back the return address push( dReturnAddress );

// preserve registers

// begin sub-task

// leave the count in EAX

// restore the registers used

ret();

end countUpperCase;

begin StringProgram;

stdout.put( "Please enter a string to process", nl ); // this code allocates a string of size 80 mov( @size( int8 ), AL ); mov( 80, BL ); inc( BL ); mul( BL ); mov( 0, EBX ); mov( AX, BX ); malloc( EBX ); mov( EAX, stringData ); // let's try reading a value into the string mov( stringData, EAX ); push( EAX ); mov( 80, CX ); push( CX ); call gets; // print the string stdout.put( "----> here is the string you entered: " ); mov( stringData, EAX ); push( EAX ); call puts; stdout.newln(); // initialize EAX before calling the function. mov( 0, EAX );

// TODO: send a string parameter

to the function

call countUpperCase;

// show the results stdout.put( "result=" ); stdout.put( EAX ); stdout.newln();

end StringProgram;