SHL

REG0=GPRv_B():rw REG1=XED_REG_CL:r:IMPL

x86_64 X86_LEGACY SHIFT I86 source: xed

XED_SHL_GPRv_CL_D3r4

Encoding

encoding_kindX86_LEGACY
opcode_bytesD3
opcode_mapONEBYTE
mandatory_prefix-
has_modrmTrue
modrm.reg = /4/4
cpl3
raw_encoding0xD3 MOD[0b11] MOD=3 REG[0b100] RM[nnn]

Operands (2)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 REG0 REG RW EXPLICIT MODRM_REG
1 REG1 REG (=CL) R IMPLICIT MODRM_REG

Flag effects (6)

CF = WRITE PF = WRITE AF = UNDEFINED ZF = WRITE SF = WRITE OF = UNDEFINED

Micro-ops sequence (0)

No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.