资料介绍
This limitation describes a deviation from the instruction execution rule of the CPU
(MOVS/I and MOVSW/I instruction) in rare special cases.
If the source and destination areas are overlapping, the instructions MOVS and
MOVSW may show different behavior with respect to the instruction execution rules.
The effect depends on the condition, if AH or a bank register is changed short before
the execution.
In case the source and destination area is not overlapping, the result of the execution is
not affected.
The C compiler will not generate code, which could produce such a deviation from the
execution rule. It is also very unlikely to find such a sequence in normal written
assembler code. However, the possibility exists for such a scenario and depends on
special usage.FUJITSU MICROELECTRONICS CI07-00006-1E
CUSTOMER INFORMATION
16-bit microcontroller
F2MC-16FX Family
Execution condition limitation of MOVS/I,
MOVSW/I Instructions
Notes
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