Write an ARM function (subroutine) to count the number of odd integers in an int

ID: 3929764 • Letter: W

Question

Write an ARM function (subroutine) to count the number of odd integers in an integer array. The function signature is:

int numodd( int array[], int size ) ;

where:

int array[] is passed to the ARM function as a pointer to the first element of the integer array and,

int size is passed by value and is the number of elements in the array.

The C language source code is:

#include

extern int numodd( int array[], int size ) ;

int main( int argc, char * argv[] )

{

int numarray[] = { 2, 3, 1025, 3024, 4057, -3, -1025, -3578 } ;

int size = sizeof(numarray) / sizeof( int ) ;

int result ;

result = numodd( numarray, size ) ;

printf( "Number of odd numbers: %d ", result ) ;

exit( 0 ) ;

}

A number is odd if the LSB is set (value = 1) and even if the LSB is reset (value = 0) .

Example Format:

.global numodd
.text
numodd:
   stmfd sp!, {v1-v6,lr}
   ldmfd sp!, {v1-v6,pc}
   .end