HP 3000 Manuals HP 3000 Manuals
func cmbpinstr
Returns the original CM instruction at a specified CM code address where
a CM breakpoint has been set.
Syntax
cmbpinstr (cmaddr [pin])
This function accepts the address (either logical or absolute) of an
existing CM breakpoint and returns the instruction associated with that
breakpoint. The default action is to look for breakpoints set by the
current PIN. Breakpoint indices for other PINs (including the global pin)
may be retrieved by utilizing the optional pin parameter.
Formal Declaration
cmbpinstr:s16 (cmaddr:cptr [pin:s16=0])
Parameters
cmaddr Look for this address in the CM breakpoint table. Both
logical and absolute code addresses are supported.
pin Look for breakpoints set by this PIN. Default is the
caller's PIN (a pin of 0 implies this). To specify
system (global) breakpoints, use a -1 (or 32762) as the
PIN.
Examples
%cmdebug > dc FOPEN,1
%005274: FOPEN+%0 004300 .. STAX, NOP
Display code at the address of FOPEN so we can see what the current
instruction at that address is.
%cmdebug > b FOPEN
added: CM [1] SYS % 161.5274 FOPEN+%0
%cmdebug > dc FOPEN,1
%005274: FOPEN+%0 003600 <. BRKP
Now set a breakpoint at FOPEN and display the code there. The old
instruction has been replaced with a breakpoint instruction.
%cmdebug > wl cmbpinstr(FOPEN)
%4300
Use the function to look up the actual instruction. The instruction that
is stored in the system breakpoint table is returned by the function.
Limitations, Restrictions
none