Arm VERSION 1.2 Bedienungsanleitung Seite 174

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ARM Instruction Reference
4-64 Copyright © 2000, 2001 ARM Limited. All rights reserved. ARM DUI 0068B
4.7.2 MCR, MCR2, MCRR
Move to coprocessor from ARM registers. Depending on the coprocessor, you might be
able to specify various operations in addition.
Syntax
MCR{cond} coproc, opcode1, Rd, CRn, CRm{, opcode2}
MCR2 coproc, opcode1, Rd, CRn, CRm{, opcode2}
MCRR{cond} coproc, opcode1, Rd, Rn, CRm
where:
cond
is an optional condition code (see Conditional execution on page 4-4).
coproc
is the name of the coprocessor the instruction is for. The standard name
is
pn
, where
n
is an integer in the range 0-15.
opcode1
is a coprocessor-specific opcode.
Rd, Rn
are ARM source registers. They must not be r15.
CRn, CRm
are coprocessor registers.
opcode2
is an optional coprocessor-specific opcode.
Usage
The use of these instructions depends on the coprocessor. See the coprocessor
documentation for details.
Note
MCR2
is always unconditional.
Architectures
MCR
is available in ARM architecture versions 2 and above.
MCR2
is available in ARM architecture versions 5 and above.
MCRR
is available in E variants of ARM architecture v5 and above, excluding xP variants.
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