system.debugger.b

Command/System Debugger, Releases: AP and R83

Sets breakpoint condition.

Syntax

b{data.reference.specification}{.offset}

Description

establishes a 'breakpoint' condition which causes the system to enter the system debugger when the condition is met.

The optional 'offset' sets a particular breakpoint within the mode, at the specified 'offset'. If no 'offset' is specified, the debugger 'breaks' at every available breakpoint within the mode. In AP, every assembler instruction is an available breakpoint. In R83, only labels are available breakpoints.

The 'data.reference.specification' may contain a maximum of two numeric parameters, hence no window specification is expected.

A plus (+) character is displayed for each breakpoint successfully entered into the table, until the table is full. The maximum number of breakpoints at one time is four.

Example

b/5.157

Sets a breakpoint at offset x'157' in frame 5.

b/5

Breaks at every available breakpoint in frame 5.

b/au.input.0

Breaks at the first entry point of the 'au.input' mode.

See Also

Command Name Type Description
system.debugger.overview Introductory Overview of system debugger.
system.debugger.d Command Displays breakpoint and trace table entries.
system.debugger.e Command Toggles the single-step feature on or off.
system.debugger.k Command Kills breakpoint.

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