Laptop User Manual

ix
Device Probe Function.....................................................................................3-16
Disk I/O via 166Bug Commands...................................................................3-16
IOI (Input/Output Inquiry).....................................................................3-16
IOP (Physical I/O to Disk) .......................................................................3-16
IOT (I/O Teach).........................................................................................3-16
IOC (I/O Control)......................................................................................3-17
BO (Bootstrap Operating System)...........................................................3-17
BH (Bootstrap and Halt)...........................................................................3-17
Disk I/O via 166Bug System Calls.................................................................3-17
Default 166Bug Controller and Device Parameters.....................................3-18
Disk I/O Error Codes.......................................................................................3-19
Network I/O Support .............................................................................................3-19
Intel 82596 LAN Coprocessor Ethernet Driver.............................................3-19
UDP/IP Protocol Modules..............................................................................3-19
RARP/ARP Protocol Modules........................................................................3-20
BOOTP Protocol Module.................................................................................3-20
TFTP Protocol Module......................................................................................3-20
Network Boot Control Module.......................................................................3-20
Network I/O Error Codes...............................................................................3-20
Multiprocessor Support ..........................................................................................3-21
Multiprocessor Control Register (MPCR) Method......................................3-21
GCSR Method....................................................................................................3-23
Diagnostic Facilities.................................................................................................3-23
CHAPTER 4 USING THE 166Bug DEBUGGER
Entering Debugger Command Lines......................................................................4-1
Syntactic Variables..............................................................................................4-2
Expression as a Parameter..........................................................................4-3
Address as a Parameter ..............................................................................4-4
Address Formats..........................................................................................4-4
Offset Registers............................................................................................4-6
Port Numbers......................................................................................................4-8
Entering and Debugging Programs.........................................................................4-9
Calling System Utilities from User Programs........................................................4-9
Preserving the Debugger Operating Environment...............................................4-9
166Bug Vector Table and Workspace..............................................................4-10
Hardware Functions.........................................................................................4-10
Exception Vectors Used by 166Bug................................................................ 4-11
Using 166Bug Target Vector Table..........................................................4-12
Creating a New Vector Table...................................................................4-13