OS_BreakPt (changes)

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Programmer's OS Reference SWI Manuals Calls

» OS_BreakPtPart 15 – SWI Calls

OS_BreakPt

(SWI &17)

Use

The purpose of this call is to cause a BreakPoint trap, and the BreakPoint handler to be entered.

Notes

When this is executed, all user mode registers are saved into a block and the BreakPoint handler is called. The saved registers are only guaranteed to be correct for user mode.

The default handler displays the message ‘Break point at &xxxxx’ and calls OS_Exit. This SWI would be placed in code by the debugger at required breakpoints.

The handler can be changed with OS_ChangeEnvironment.

See also

• OS_BreakCtrl
• OS_ChangeEnvironment