Tornado

Tornado 2.0
User’s Guide
This example shows the printf( )routine. The routine does a LINK, then pushes the
value of std_out onto the stack and calls the routine fioFormatV( ). Notice that
symbols defined in C (routine and variable names) are prefixed with an underbar
( _ ) by the compiler.
Perhaps the most frequently used system information command is d( ), which
displays a block of memory starting at the address which is passed to it as a
parameter. As with any other routine that requires an address, the starting address
can be a number, the name of a variable or routine, or the result of an expression.
Several examples of variations on d( ) appear below.
Display starting at address 1000 decimal:
-> d (1000)
Display starting at 1000 hex:
-> d 0x1000
Display starting at the address contained in the variable dog:
-> d dog
The above is different from a display starting at the address of dog. For example,
if dog is a variable at location 0x1234, and that memory location contains the value
10000, d( )displays starting at 10000 in the previous example and at 0x1234 in the
following:
-> d &dog
Display starting at an offset from the value of dog:
-> d dog + 100
Display starting at the result of a function call:
-> d func (dog)
Display the code of func( ) as a simple hex memory dump:
-> d func
162