Datasheet

ARMulator Reference
4-34 Copyright © 1999-2001 ARM Limited. All rights reserved. ARM DUI0058D
4.7.1 Exception handler
This event handler is called whenever the ARM processor takes an exception.
Syntax
typedef unsigned GenericCallbackFunc(void *handle, void *data)
where:
handle is the handle passed to ARMulif_InstallExceptionHandler .
data must be cast to ( ARMul_Event * ), and contain:
((ARMul_Event *)data)->event
is the core event causing the exception (see Table 4-2 on
page 4-30).
((ARMul_Event *)data)->data1
is the address of the hardware vector for the exception.
((ARMul_Event *)data)->data2
is the instruction that caused the exception.
Usage
As an example, this can be used by an operating system model to intercept and simulate
SWIs. If an installed handler returns nonzero, the ARM does not take the exception (the
exception is ignored).
Note
Note
If the processor is in Thumb state, the equivalent ARM instruction will be supplied.
Install the exception handler using:
int ARMulif_InstallExceptionHandler(RDI_ModuleDesc *mdesc,
GenericCallbackFunc *func, void *handle)
Remove the exception handler using:
int ARMulif_RemoveExceptionHandler(RDI_ModuleDesc *mdesc,
GenericCallbackFunc *func, void *handle)