LOOPE
RELBR:r:b:i8 REG0=ArCX():rw:SUPP REG1=rIP():rw:SUPP
x86_64 X86_LEGACY COND_BR I86 source: xed branch
XED_LOOPE_X86_LEGACY_ONEBYTE_E0_433663
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | E0 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| attributes | UNDOCUMENTED |
| cpl | 3 |
| raw_encoding | 0xE0 MODEP5=1 REP=3 norex2_prefix DF64() BRDISP8() IMMUNE66_LOOP64() |
Operands (3)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | RELBR | REL_BR | b | R | EXPLICIT | IMM | |
| 1 | REG0 | REG | RW | SUPPRESSED | MODRM_REG | ||
| 2 | REG1 | REG | RW | SUPPRESSED | MODRM_REG |
Flag effects (1)
ZF = READ
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.