Freescale Semiconductor Motorola MMDS0508 Operation Manual page 114

Command-Line Commands
BR
114
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Set Instruction Breakpoint
The BR command sets an instruction breakpoint at a specified address
or range of addresses. If a map file has been loaded, symbols (or labels)
from the source code can be used as arguments. The maximum number
of all instruction breakpoints is 64. For a list of all active breakpoints,
enter this command without any parameter value.
A breakpoint occurs only on an address that contains an opcode (that is,
an instruction fetch address). Although this command sets breakpoints
at each address of a range, breakpoints occur only at the opcode
addresses within the range. The system displays an error message if the
address is within the range defined by a previous BR command or if the
range of a new BR command overlaps the range of an existing BR
command. An error message also appears if setting a 65th breakpoint is
attempted.
Syntax:
BR [< address >|< range >|< symbol >]
Where:
< address > The address for a breakpoint
<range> The range of addresses for breakpoints; a
beginning address and an ending address, separated by a space.
<symbol> The label of an instruction in source code.
Examples:
>BR 100 Set a breakpoint at address 100.
>BR 130 13F Set 16 breakpoints at addresses 130 through
13F.
>BR START Set a breakpoint at address label START in
code.
>BR 1000 103F Set 64 breakpoints at addresses 1000 through
103F. Note that trying to set additional
breakpoints, without clearing some of these
breakpoints, would bring up the error
message:
Command-Line Commands
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Too many breakpoints
BR
MMDS0508OM/D
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