R

rcl/rcr/rol/ror

Rotate

rcl

1, r/m8

rcl

%cl , r/m8

rcl

$ imm8,r/m8

rcl

1, r/m16

rcl

%cl , r/m16

rcl

$ imm8,r/m16

rcl

1, r/m32

rcl

%cl , r/m32

rcl

$ imm8,r/m32

rcr

1, r/m8

rcr

%cl , r/m8

rcr

$ imm8,r/m8

rcr

1, r/m16

rcr

%cl , r/m16

rcr

$ imm8,r/m16

rcr

1, r/m32

rcr

%cl , r/m32

rcr

$ imm8,r/m32

rol

1, r/m8

rol

%cl , r/m8

rol

$ imm8,r/m8

rol

1, r/m16

rol

%cl , r/m16

rol

$ imm8,r/m16

rol

1, r/m32

rol

%cl , r/m32

rol

$ imm8,r/m32

ror

1, r/m8

ror

%cl , r/m8

ror

$ imm8,r/m8

ror

1, r/m16

ror

%cl , r/m16

ror

$ imm8,r/m16

ror

1, r/m32

ror

%cl , r/m32

ror

$ imm8,r/m32

rdmsr

rdmsr

Read from Model-Specific Register (Pentium-specific)

rdstc

rdstc

Read from Time Stamp Counter (Pentium-specific)

rep/repe/repz/repne/repnz

Repeat Following String

rep ins

%dx , rm8

Operation

rep ins

%dx , rm16

rep ins

%dx , rm32

rep movs

m8,m8

rep movs

m16,m16

rep movs

m32,m32

rep outs

rm8, %dx

rep outs

rm16, %dx

rep outs

rm32, %dx

rep lods

m8

rep lods

m16

rep lods

m32

rep stos

m8

rep stos

m16

rep stos

m32

repe cmps

m8,m8

repe cmps

m16,m16

repe cmps

m32,m32

repe scas

m8

repe scas

m16

repe scas

m32

repne cmps

m8,m8

repne cmps

m16,m16

repne cmps

m32,m32

repne scas

m8

repne scas

m16

repne scas

m32

ret

ret

Return from Procedure

ret

$ imm16

rsm

rsm

Resume from System-Management Mode (Pentium-specific)