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OpenBoot 3.x Command Reference Manual

SPARC Register Commands

Table I-52 SPARC Register Commands

Command  

Stack Diagram 

Description 
%g0 through %g7

( -- value ) 

Return the value in the specified global register. 
%i0 through %i7

( -- value ) 

Return the value in the specified input register. 
%l0 through %l7

( -- value ) 

Return the value in the specified local register. 
%o0 through %o7

( -- value ) 

Return the value in the specified output register. 
%pc %npc %y

( -- value ) 

Return the value in the specified register. 
%f0 through %f31

( -- value ) 

Return the value in the specified floating point register. 
.fregisters

( -- ) 

Display the values in %f0 through %f31.
.locals

( -- ) 

Display the values in the i, l and o registers.
.registers

( -- ) 

Display values in processor registers. 
.window

( window# -- ) 

Same as w .locals; display the desired window.
ctrace

( -- ) 

Display the return stack showing C subroutines. 
set-pc

( new-value -- ) 

Set %pc to new-value, and set %npc to (new-value+4).
to regname

( new-value -- ) 

Change the value stored in any of the above registers. Use in the form: new-value to regname.
w

( window# -- ) 

Set the current window for displaying %ix, %lx, or %ox.