PSUBUSB
REG0=MMX_R():rw:q MEM0:r:q
x86_64 X86_LEGACY MMX PENTIUMMMX source: xed
XED_PSUBUSB_X86_LEGACY_0F_D8_437267
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | D8 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| attributes | NOTSX |
| exception_class | mmx-mem |
| cpl | 3 |
| raw_encoding | 0x0F 0xD8 no_refining_prefix MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | q | RW | EXPLICIT | MODRM_REG | |
| 1 | MEM0 | MEM | q | R | EXPLICIT | MODRM_RM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.