BNDSTX

MEM0:w:bnd32 REG0=BND_R():r MEM0:w:bnd64 REG0=BND_R():r MEM0:w:bnd64 REG0=BND_R():r MEM0:w:bnd64 REG0=BND_R():r

x86_64 X86_LEGACY MPX MPX source: xed

XED_BNDSTX_X86_LEGACY_0F_1B_571651

Encoding

encoding_kindX86_LEGACY
opcode_bytes1B 0F 1B 0F 1B 0F 1B
opcode_map0F
mandatory_prefix-
has_modrmTrue
requires_modelong
attributesEXCEPTION_BR SPECIAL_AGEN_REQUIRED INDEX_REG_IS_POINTER NO_RIP_REL
cpl3
raw_encoding0x0F 0x1B MPXMODE=1 MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() no_refining_prefix not64 eamode32 0x0F 0x1B MPXMODE=1 MOD[mm] MOD=0 REG[rrr] RM[nnn] MODRM() no_refining_prefix mode64 0x0F 0x1B MPXMODE=1 MOD[mm] MOD=1 REG[rrr] RM[nnn] MODRM() no_refining_prefix mode64 0x0F 0x1B MPXMODE=1 MOD[mm] MOD=2 REG[rrr] RM[nnn] MODRM() no_refining_prefix mode64

Operands (8)

# Role Kind Class / Reg Width Access Visibility Encoded in
0 MEM0 MEM w W EXPLICIT MODRM_RM
1 REG0 REG R EXPLICIT MODRM_REG
2 MEM1 MEM w W EXPLICIT MODRM_RM
3 REG1 REG R EXPLICIT MODRM_REG
4 MEM2 MEM w W EXPLICIT MODRM_RM
5 REG2 REG R EXPLICIT MODRM_REG
6 MEM3 MEM w W EXPLICIT MODRM_RM
7 REG3 REG R EXPLICIT MODRM_REG

Micro-ops sequence (0)

No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.