PTEST
xmm, xmm/m128
x86_64 X86_LEGACY LOGICAL SSE4_1 source: asmjit
X86_PTEST_X86_LEGACY_0F38_17_898451
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 17 |
| opcode_map | 0F38 |
| mandatory_prefix | 66 |
| has_modrm | True |
| raw_encoding | [RM] 66 0F 38 17 /r |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | XMM | x | RW | EXPLICIT | MODRM_REG |
| 1 | OP1 | REG | R | EXPLICIT |
Flag effects (6)
CF = WRITE
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.