CTESTNL
REG0=GPR8_B():r:b:i8 IMM0:r:b:i8
x86_64 X86_LEGACY APX APX_F_N3 source: xed
XED_CTESTNL_GPR8i8_IMM8_DFV_APX_N3
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | F6 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /0 | /0 |
| vex_l | 0 |
| imm_size_bytes | 1 signed |
| requires_mode | long |
| attributes | BYTEOP DEFAULT_FLAGS |
| exception_class | APX-EVEX-CCMP |
| cpl | 3 |
| raw_encoding | EVV 0xF6 VNP MAP4 MOD[0b11] MOD=3 UBIT=1 REG[0b000] RM[nnn] ND=0 SCC13 VL128 mode64 ZEROING=0 EVAPX_SCC() SIMM8() |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | b | R | EXPLICIT | MODRM_REG | |
| 1 | IMM0 | IMM | b | R | EXPLICIT | IMM |
Flag effects (2)
CF = SET_0
OF = SET_0
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.