REP_XSHA256
REG0=ArAX():rcw:SUPP REG1=OrCX():rcw:SUPP MEM0:w:SUPP:b BASE0=ArSI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP MEM1:r:SUPP:b BASE1=ArDI():r:SUPP SEG1=FINAL_ESEG1():r:SUPP
x86_64 X86_LEGACY VIA_PADLOCK VIA_PADLOCK_SHA source: xed
XED_REP_XSHA256_X86_LEGACY_0F_A6_38683
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | A6 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /2 | /2 |
| attributes | REP FIXED_BASE0 BYTEOP |
| cpl | 3 |
| raw_encoding | 0x0F 0xA6 MOD[0b11] REG[0b010] RM[0b000] f3_refining_prefix |
Operands (8)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | R | SUPPRESSED | MODRM_REG | ||
| 1 | REG1 | REG | R | SUPPRESSED | MODRM_REG | ||
| 2 | MEM0 | MEM | w | W | SUPPRESSED | MODRM_RM | |
| 3 | BASE0 | REG | RW | SUPPRESSED | |||
| 4 | SEG0 | REG | R | SUPPRESSED | |||
| 5 | MEM1 | MEM | b | R | SUPPRESSED | MODRM_RM | |
| 6 | BASE1 | REG | R | SUPPRESSED | |||
| 7 | SEG1 | REG | R | SUPPRESSED |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.