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TEXT_15956_Traps.txt
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Other Trap Definitions
Note: Traps are the mechanism for programs to access system functions. Most
of these traps have known names which are contained in the Tattle.Traps
file.
Unavailable Traps : This lists those named traps that for various reasons
are not available on your combination of hardware and software. They are
listed in the following format:
$Trap Number in Hex = _TrapName
Note: The [address] listed in the following two formats may either be the
the original ROM address as shipped by Apple or may represent patches that
were made by various INITs, control panels, etc.
Available Traps (Named): This lists named traps available to your
machine in the following format:
$Trap Number in Hex = _TrapName [$Address of trap in hex]
Available Traps (UnNamed): This lists unnamed but active traps on your
machine in the format following. Since some traps point to the same
code, one can compare the addresses to determine which are duplicates.
Duplicate is really not the correct term as Traps which point to the
same code are generally variations of the original trap. For example,
_SetFilType shows the same address at $A043, $A243, and $A443.
This occurs because, in the case of this type of trap, the $A243 version
executes the $A043 command immediately, and the $A443 version
executes the command asynchronously. Different kinds of traps (e.g.
Memory, File, Device, etc.) have similar variations with different meanings.
$Trap Number in Hex [$Address of trap in hex]