Implementation for: * Window

This window contains the following functions:

Overflow Handling field

Displays the way an overflow is handled.

Reduce Resolution option
Avoids overflow by shifting both inputs to the right. The shift is determined automatically.
Keep Resolution And Limit option
Does not perform a shift and uses mathematical service routines with clipping if available.
Keep Resolution And Don't Limit option
Does not perform a shift and uses normal arithmetic, thus allowing overflow to occur. This variant is used for counters which should overflow cyclically, for example.

Pre-shift:

Both operands can be shifted before the operation to avoid an overflow and to re-scale each operand in a numerically meaningful way. The pre-shift can also allow full use of the value range. Integer numbers between -31 and 31 are possible for either operand. A positive number indicates left shift, negative indicates right shift. Zero means no shift at all. The following settings can occur:

The activated Auto option indicates no pre-shift.
When Auto is deactivated, the pre-shift is performed according to the settings in the Pre Shift field.
Line 1 determines the shift for the first operand (-31 to 31).
Line 2 determines the shift for the second operand (-31 to 31).