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defineErrorHandler

void defineErrorHandler( void * errfcn );

Description

Sets the BIOS function pointer for runtime errors to the function pointed to by errfcn. This user-defined function must be in root memory. Specify root at the start of the function definition to ensure this. When a runtime error occurs, the following information is passed to the error handler on the stack:

Stack Position	Stack Contents
SP+0	Return address for exceptionRet
SP+2	Error code
SP+4	0x0000 (can be used for additional information)
SP+6	XPC when exception() was called (upper byte)
SP+8	Address where exception() was called

Parameters

errfcn

Pointer to user-defined run-time error handler.

Library

SYS.LIB