LOADIWKEY
REG0=XMM_R():r:dq:u8 REG1=XMM_B():r:dq:u8 REG2=XED_REG_EAX:r:SUPP:d:u32 REG3=XED_REG_XMM0:r:SUPP:dq:u8
x86_64 X86_LEGACY KEYLOCKER KEYLOCKER source: xed
XED_LOADIWKEY_XMMu8_XMMu8
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | DC |
| opcode_map | 0F38 |
| mandatory_prefix | - |
| has_modrm | True |
| attributes | RING0 |
| cpl | 0 |
| raw_encoding | 0x0F 0x38 0xDC f3_refining_prefix MOD[0b11] MOD=3 REG[rrr] RM[nnn] |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | R | EXPLICIT | MODRM_REG | ||
| 1 | REG1 | REG | R | EXPLICIT | MODRM_REG | ||
| 2 | REG2 | REG | (=EAX) | d | R | SUPPRESSED | MODRM_REG |
| 3 | REG3 | REG | (=XMM0) | R | SUPPRESSED | MODRM_REG |
Flag effects (6)
CF = SET_0
PF = SET_0
AF = SET_0
ZF = WRITE
SF = SET_0
OF = SET_0
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.