BTR_LOCK
MEM0:rw:v IMM0:r:b
x86_64 X86_LEGACY BITBYTE I386 source: xed
XED_BTR_LOCK_X86_LEGACY_0F_BA_915030
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | BA |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /6 | /6 |
| imm_size_bytes | 1 |
| attributes | LOCKED HLE_ACQ_ABLE HLE_REL_ABLE |
| cpl | 3 |
| raw_encoding | 0x0F 0xBA MOD[mm] MOD!=3 REG[0b110] RM[nnn] MODRM() UIMM8() lock_prefix |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | v | RW | EXPLICIT | MODRM_RM | |
| 1 | IMM0 | IMM | b | R | EXPLICIT | IMM |
Flag effects (5)
CF = WRITE
PF = UNDEFINED
AF = UNDEFINED
SF = UNDEFINED
OF = UNDEFINED
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.