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9-58 PPC405 Core User’s Manual
dcread
Data Cache Read
Programming Note
Execution of this instruction is privileged.
Exceptions
If EA is not word-aligned, an alignment exception occurs.
This instruction is considered a “load” with respect to data storage exceptions, but cannot cause a
data storage exception. See “Access Protection for Cache Control Instructions” on page 7-16.
The execution of an dcread instruction can cause a data TLB miss exception, at the specified EA,
regardless of the non-specific intent of that effective address.
This instruction is considered a “load” with respect to data address compare (DAC) debug exceptions.
See “Debug Interrupt” on page 5-26.
Architecture Note
This instruction is implementation-specific and may not be portable to other implementations.