ROUNDSD
REG0=XMM_R():rw:q MEM0:r:q IMM0:r:b REG0=XMM_R():rw:q REG1=XMM_B():r:q IMM0:r:b
x86_64 X86_LEGACY SSE SSE4 source: xed
XED_ROUNDSD_X86_LEGACY_0F3A_0B_379150
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 0B 0F 3A 0B |
| opcode_map | 0F3A |
| mandatory_prefix | - |
| has_modrm | True |
| imm_size_bytes | 1 |
| attributes | simd_scalar MXCSR |
| exception_class | SSE_TYPE_3 |
| cpl | 3 |
| raw_encoding | 0x0F 0x3A 0x0B osz_refining_prefix REFINING66() MOD[mm] MOD!=3 REG[rrr] RM[nnn] MODRM() UIMM8() 0x0F 0x3A 0x0B osz_refining_prefix REFINING66() MOD[0b11] MOD=3 REG[rrr] RM[nnn] UIMM8() |
Operands (6)
| # | 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 | |
| 2 | IMM0 | IMM | b | R | EXPLICIT | IMM | |
| 3 | REG1 | REG | q | RW | EXPLICIT | MODRM_REG | |
| 4 | REG2 | REG | q | R | EXPLICIT | MODRM_REG | |
| 5 | IMM1 | IMM | b | R | EXPLICIT | IMM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.