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9-110 PPC405 Core User’s Manual
mfdcr
Move from Device Control Register
mfdcr
Move from Device Control Register
DCRN DCRF
5:9
|| DCRF
0:4
(RT) (DCR(DCRN))
The contents of the DCR specified by the DCRF field are placed into register RT.
If instruction bit 31 contains 1, the contents of CR[CR0] are undefined.
Registers Altered
•RT
Invalid Instruction Forms
Reserved fields
Invalid DCRF values
Programming Note
Execution of this instruction is privileged.
The DCR number (DCRN) specified in the assembler language coding of mfdcr refers to a DCR
number. The assembler handles the unusual register number encoding to generate the DCRF field.
Architecture Note
This instruction is implementation-specific and may not be portable to other implementations.
mfdcr RT, DCRN
31 RT DCRF 323
0 6 11 21 31