Turn coordinator not working ($036E)

[zrsk22]

Hi Pete,

The offset $036E is not working (I have version 3.70). I have FS9.

Value is varing to the left from 255-127 and to the right from 0-127. But it must be to the left from -127 to the right +127.

Thank you.

[Thomas Richter]

Hi,

do you use maybe unsinged byte instead of signed byte?

Thomas

[Pete Dowson]

35 minutes ago, zrsk22 said:

Value is varing to the left from 255-127 and to the right from 0-127. But it must be to the left from -127 to the right +127.

As pointed out by Thomas, whether you interpret the 8 binary bits in a byte as signed or unsigned makes the different between a range of decimal values from -128 to +127 and 0 to 255. For example, -1 has all 8 bits set to 1 which is an unsigned value of 255. The highest bit is the sign bit in a signed value.

Pete

 

 

[zrsk22]

I see now. Hence as I think it must be converted in this way:

Var 0109, Link FSUIPC_IN, Offset $036E, Length 1 // side slip
{
L0 = V0109
IF L0 > 128
{
L0 = L0 - 256
}
L0 = L0 * 5 // Calculate degrees for UAS-B
&skol = L0
}

 Thank you for help.