Encoding:

COP1

010001

fmt

00000

MOV

000110

Format:

MOV.fmt		Floating Point Move
MOV.S fd, fs	MIPS32	Floating Point Move
MOV.D fd, fs	MIPS32	Floating Point Move
MOV.PS fd, fs	MIPS64, MIPS32 Release 2, removed in Release 6	Floating Point Move

Purpose:

Floating Point Move

To move an FP value between FPRs.

Description:

 FPR[fd] = FPR[fs]

The value in FPR fs is placed into FPR fd. The source and destination are values in format fmt. In paired-single format, both the halves of the pair are copied to fd.

The move is non-arithmetic; it causes no IEEE 754 exceptions, and the FCSR_Cause and FCSR_Flags fields are not modified.

Restrictions:

The fields fs and fd must specify FPRs valid for operands of type fmt. If the fields are not valid, the result is UNPREDICTABLE.

The operand must be a value in format fmt; if it is not, the result is UNPREDICTABLE and the value of the operand

FPR becomes UNPREDICTABLE.

The result of MOV.PS is UNPREDICTABLE if the processor is executing in the FR=0 32-bit FPU register model. It is predictable if executing on a 64-bit FPU in the FR=1 mode, but not with FR=0, and not on a 32-bit FPU.

Availability and Compatibility:

MOV.PS has been removed in Release 6.

Operation:

StoreFPR(fd, fmt, ValueFPR(fs, fmt))

Exceptions:

Coprocessor Unusable, Reserved Instruction

Floating Point Exceptions:

Unimplemented Operation