Restriction:
This section applies to programs running on Intel processors only (OS/2 and Windows).
Register information is
not available when debugging interpreted Java programs. It is available when debugging
High Performance Compiled (HPC) Java programs.
If you are debugging an Intel-based application and you step over a source line containing floating-point arithmetic, you may find that the values of floating-point registers in the Registers pane are not displayed. Instead, "Not used" appears beside each register. In fact, one or more of these registers is being used during execution of the source line, but once you have stepped over the source line, the register's contents have been written to a variable and the register is no longer in use. If you want to step over a floating-point statement and see a floating-point register's value before it is written to the variable, do the following: