mrrc2

Move to Two Registers from Coprocessor 2 (A32)

MRRC2<c> <coproc>, <opc1>, <Rt>, <Rt2>, <CRm>

Reads a coprocessor register into two registers (Extension encoding).

Details

A32 coprocessor data transfer (extension encoding): reads a 64-bit value from coprocessor coproc register CRm into two general-purpose registers (Rt, Rt2), with operation code opc1. Does not modify condition flags. Execution state: A32 only; requires coprocessor support. May cause an Undefined Instruction exception if the coprocessor does not exist.

Pseudocode Operation

(Rt2 : Rt) ← Coprocessor[coproc].CRm

Example

MRRC2 p15, 0, r3, r4, c2

Encoding

Binary Layout
111111000101
Rt2
Rt
coproc
opc1
CRm
 
Format Coprocessor
Opcode 0xFC500000
Extension A32 (System)

Operands

  • coproc
    CP Num
  • Rt
    Dest 1
  • Rt2
    Dest 2