uint CMND_PTR = 0;
uint BPTR_PTR = 0;
uint SIZE_PTR = 0;
uint RSLT_PTR = 0;

int buffer_ptr;
int buffer_size;
int index;
int ival;
int command;
int result_value;

real rval;
real increment;
real real_ampl;

void asmmain()
{
    while (true)
    {
        do
            command = GBYTE[CMND_PTR];
        while (command == 0);

        buffer_ptr = GWORD[BPTR_PTR];
        buffer_size = GWORD[SIZE_PTR];

        switch (command)
        {
        case 1: // RMS
            RMS_Calc();
            break;
        }

        GLONG[RSLT_PTR] = result_value;
        GBYTE[CMND_PTR] = 0;
    }
}

void RMS_Calc()
{
    int v;

    result_value = 0;

    for (index = buffer_size)
    {
        v = GBYTE[buffer_ptr] - 128;
        ++buffer_ptr;
        v = ABS(v);
        v = v * v;
        result_value += v;
    }

    result_value = result_value / buffer_size;
    result_value = ISQRT(result_value);

}