Displays the last saved contents of the device's operating
   registers if looking at a crash.  On a running system, displays
   the contents of the registers are just read.

   Format

      USB SHO UHCI REGISTERS

1  –  Example

 SDA> USB SHOW UHCI REGISTERS
 Current UHCI operating registers as read from the controller

 Extended Host Controller Operating Registers
 ----------------------------------        ----------
 USB Commad Register                               01
    Run/Stop                                        1
    Host Controller Rest                            0
    Global Reset                                    0
    Enter Global Suspend                            0
    Forced Global resume                            0
    Software Debug                                  0
    Configure Flag                                  0
    Max Packet 1 -> 64 0 -> 32 bytes                0
 USB Status Register                               00
    TD completed                                    0
    Error Occured                                   0
    Device Resumed                                  0
    Host HW error                                   0
    Error processing TD                             0
    Controller Halted                               0
 USB Interrupt Enable Register                     0f
    Timeout                                         1
    Resume                                          1
    Interrupt on Completion                         1
    Short Transfer                                  1
 Frame Index Register                            06a6
 Frame List Base Address                     001be000
 Start or Frame Timing Modification                40
 Port 01 Status and Control Register             05a5
    Current connection Status                       1
    Connection changed State                        0
    Port Enable                                     1
    Port Enable Change                              0
    Line STS                                        2
    Undefined error
    Resume Detected                                 0
    Low Speed Device                                1
    Port Reset                                      0
    Suspend                                         0
 Port 02 Status and Control Register             0580
    Current connection Status                       0
    Connection changed State                        0
    Port Enable                                     0
    Port Enable Change                              0
    Line STS                                        0
    Port enabled
    Resume Detected                                 0
    Low Speed Device                                1
    Port Reset                                      0
    Suspend                                         0
 SDA>