REP_XCRYPTECB
MEM0:w:SUPP:b REG0=OrCX():rw:SUPP REG1=OrDX():r:SUPP REG2=OrBX():r:SUPP BASE0=ArDI():rw:SUPP SEG0=FINAL_ESEG():r:SUPP MEM1:cr:SUPP:b BASE1=ArSI():rcw:SUPP SEG1=FINAL_DSEG1():r:SUPP
x86_64 X86_LEGACY VIA_PADLOCK VIA_PADLOCK_AES source: xed
XED_REP_XCRYPTECB_X86_LEGACY_0F_A7_643122
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | A7 |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /1 | /1 |
| attributes | REP FIXED_BASE0 BYTEOP |
| cpl | 3 |
| raw_encoding | 0x0F 0xA7 MOD[0b11] REG[0b001] RM[0b000] f3_refining_prefix |
Operands (9)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | MEM0 | MEM | w | W | SUPPRESSED | MODRM_RM | |
| 1 | REG0 | REG | RW | SUPPRESSED | MODRM_REG | ||
| 2 | REG1 | REG | R | SUPPRESSED | MODRM_REG | ||
| 3 | REG2 | REG | R | SUPPRESSED | MODRM_REG | ||
| 4 | BASE0 | REG | RW | SUPPRESSED | |||
| 5 | SEG0 | REG | R | SUPPRESSED | |||
| 6 | MEM1 | MEM | b | CR | SUPPRESSED | MODRM_RM | |
| 7 | BASE1 | REG | R | SUPPRESSED | |||
| 8 | SEG1 | REG | R | SUPPRESSED |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.