XSAVEC64
MEM0:w:mxsave REG0=XED_REG_EDX:r:SUPP REG1=XED_REG_EAX:r:SUPP REG2=XED_REG_XCR0:r:SUPP
x86_64 X86_LEGACY XSAVE XSAVEC source: xed
XED_XSAVEC64_X86_LEGACY_0F_C7_623084
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | C7 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /4 | /4 |
| rex_w | 1 |
| attributes | xmm_state_r REQUIRES_ALIGNMENT x87_mmx_state_r NOTSX SPECIAL_AGEN_REQUIRED |
| cpl | 3 |
| raw_encoding | 0x0F 0xC7 MOD[mm] MOD!=3 REG[0b100] RM[nnn] MODRM() rexw_prefix no_refining_prefix norex2_prefix |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | w | W | EXPLICIT | MODRM_RM | |
| 1 | REG0 | REG | (=EDX) | R | SUPPRESSED | MODRM_REG | |
| 2 | REG1 | REG | (=EAX) | R | SUPPRESSED | MODRM_REG | |
| 3 | REG2 | REG | R | SUPPRESSED | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.