SGDT
MEM0:w:s64 REG0=XED_REG_GDTR:r:SUPP MEM0:w:s REG0=XED_REG_GDTR:r:SUPP
x86_64 X86_LEGACY SYSTEM I286REAL source: xed
XED_SGDT_X86_LEGACY_0F_01_554871
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 01 0F 01 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /0 | /0 |
| requires_mode | long |
| attributes | NOTSX |
| cpl | 3 |
| raw_encoding | 0x0F 0x01 MOD[mm] MOD!=3 REG[0b000] RM[nnn] mode64 FORCE64() MODRM() 0x0F 0x01 MOD[mm] MOD!=3 REG[0b000] RM[nnn] not64 MODRM() |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | w | W | EXPLICIT | MODRM_RM | |
| 1 | REG0 | REG | R | SUPPRESSED | MODRM_REG | ||
| 2 | MEM1 | MEM | w | W | EXPLICIT | MODRM_RM | |
| 3 | REG1 | REG | R | SUPPRESSED | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.