Figure 1

"SET TIGA=-mC:\TIGA -1C:\TIGA -i0x60"
     +--- +-------- +-------- +-----
     |    |         |         |
     |    |         |         +-------> The interupt to use, must be 3rd var.
     |    |         |                    interupt vector should be free (0:0)
     |    |         +-----------------> Path for dynamic load user modules-
     |    |                              set by the TIGA board install program
     |    +---------------------------> Path for TIGA system files
     |                                   set by TIGA board install program
     +--------------------------------> The environment variable to set...