Return the index of the array element

Assignment Help Assembly Language

Reference no: EM132694300

Pass to a subroutine an array by reference (i.e. pass the address of the array), the size of the array, and a number. The subroutine should search for that number within the array elements and return the index of the array element if the matching number is found. If no matching number is found, then the subroutine should return -1.

For example: Assume the array is at address 0x20004000, the array size is 5, and the number you are looking for is 0xA. You pass the address of the array, the size of the array and the number you are looking for as arguments to the subroutine. The subroutine returns the index of the element that contains 0xA, or returns -1 if no 0xA is found in the array.

NOTE: You have to obey the ARM procedure call standards when passing arguments and returning values.

Reminder: The index of an array starts at zero.

Reference no: EM132694300

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