Motorola Embedded Controller 用户手册

Disk I/O Support

3-17

 allows you to change any configurable parameters and 

attributes of the device. In addition, it allows you to see the 
controllers available in the system. 

 allows you to send command packets as defined by the 

particular controller directly. 

 can also be used to look at the 

resultant device packet after using the 

 command. 

 reads an operating system or control program from the 

specified device into memory, and then transfers control to it. 

 reads an operating system or control program from a specified 

device into memory, and then returns control to 162Bug. It is used 
as a debugging tool.

All operations that actually access the disk are done directly or 
indirectly by 162Bug TRAP #15 system calls. (The command-level 
disk operations provide a convenient way of using these system 
calls without writing and executing a program.)