FUJITSU CM71-00329-7E User Manual

Page 122

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CHAPTER2 Dependence Functions

Notes:

Hardware

The hardware break requires the following cautions:

Do not set any hardware break in a instruction placed in a delay slot. When the hardware break
is set in the instruction, a branch does not occur even if the program is reexecuted after break.

Be sure to set a breakpoint at the starting address of the instruction. A break may not occur if an
address other than the starting address is specified.

When the program is executed from the address at which a hardware break is set, a break occurs
without executing the instruction if the immediately preceding program execution is stopped by a
factor other than the instruction break. To execute the instruction, reexecute the program.

Software

The software break requires the following cautions:

A breakpoint cannot be set in any area, such as ROM, where data cannot be written properly.
In this case, a verify error occurs when program execution is started (continuous execution or
stepwise execution is started).

Be sure to set a breakpoint at the starting address of the instruction. If a breakpoint is set during
instruction execution, the program may malfunction.

Hardware/count

The hardware/count break requires the following caution:

The hardware/count break can be used only when the FR60Lite or FR80S is used. For details,
refer to "2.3.4 Break".

The pass count increases just by fetching an instruction of a break address.

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