FIX: Debug: Single-Step Fails with Emulated Float Intructions

MORE INFORMATION

FORTRAN PowerStation version 1.0 can be differentiated from the maintenance release version 1.0a by invoking the linker. Typing link32 | more from \F32\BIN directory will show version 2.8 for FORTRAN PowerStation version 1.0, and it will show version 1.0f for the maintenance release version 1.0a.

To demonstrate the problem:

1. Disable the PowerStation's use of the coprocessor (if present). This is done by typing the following command before starting Windows:

   set tnt=-fpem

2. Start Windows and the FORTRAN Visual Workbench.
3. Build a project with F32\DEBUGME
4. Set breakpoints at lines 22 and 26 of F32\DEBUGME\DEBUGME.FOR:

         MyReal4 = MyInt4 * 3.14159

   -and-

         If ((MyInt4 * MyReal4) .EQ. MyReal8) Then

5. Press F5 to "GO"; the current line will be 22.
6. Single-step (press F8 or F10); the next line (24) is skipped and the debugger will go to the breakpoint on line 26.

To see what is happening in more detail, after step 5, turn on display of mixed source and assembly from the View menu (or with the command CTRL+F7).