mpy32_ex3_16bitSignedMultiply.c

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//******************************************************************************
//******************************************************************************
#include "driverlib.h"
 
int16_t multiplier = 0x1234;
int16_t operand = -6578;
int64_t Result;
 
void main (void)
{
    //Stop Watchdog Timer
    WDT_A_hold(WDT_A_BASE);
 
    //Set a 16-bit Operand into the specific Operand 1 register to specify
    //signed multiplication
    MPY32_setOperandOne16Bit(
        MPY32_MULTIPLY_SIGNED,
        multiplier);
    //Set 16-bit Operand 2 to begin the multiplication operation
    MPY32_setOperandTwo16Bit(
        operand);
 
    //Read out the result
    Result = MPY32_getResult();
 
    //Enter LPM4
    __bis_SR_register(LPM4_bits);
 
    //BREAKPOINT HERE to verify the correct Result
    __no_operation();
}