ILException -- datatype

ILExecThreadHasException -- has the thread thrown an exception?
ILMethodGetExceptions    -- looks like startup code
CopyExceptionStack       -- make a copy?
CVMCoder_SetupException  -- 
OutputExceptionTable     --  * Output a table of exception matching directives.
			     * Each table entry specifies a region of code for the
			     * directive.  Whenever an exception occurs in this
			     * region, the method will jump to the instructions
			     * contained in the table entry.  These instructions
			     * will typically call "finally" handlers, and then
			     * attempt to match the exception against the rules.
ILMethodFreeExceptions

# this is the b
ILSystemException

frame = _ILGetCallFrame(thread, 0);
      chain on:
	frame = _ILGetNextCallFrame(thread, frame);

frame =
{
	method = 0x400240ac, 
	{
		member = {
		programItem = {
			    image = 0x812a4b8, 
			    token = 100663385, 
			    linked = 0, 
			    attrsOrLink = 0x0}, 
		owner = 0x40021348, 
		nextMember = 0x400240e8, 
		kind = 1, 
		attributes = 454, 
		name = 0x4001a52b "Prepare", 
		signature = 0x81c51f4, 
		signatureBlob = 7120}, 
		implementAttrs = 0, 
		callingConventions = 32, 
		rva = 19280, 
		parameters = 0x0, 
		userData = 0x401c3fe1, 
		index = 36, 
		count = 0
		}

	pc = 0x401c40cd "\210Ò\a\b\004", 

	frame = 0x8109020, 
	{
		intValue = 136130276, 
		uintValue = 136130276, 
		ptrValue = 0x81d2ee4
	}

	exceptHeight = 0x8109038, 
	{
		intValue = 0, 
		uintValue = 0, 
		ptrValue = 0x0
	}

	permissions = 0x0
}



GetSourceFromDebug calls ILDebugGetLineInfo