# CLD
# Clear Direction Flag
| Opcode | Mnemonic | Description |
|---|---|---|
| FC | CLD | Clear DF flag. |
# Description
Clears the DF flag in the EFLAGS register. When the DF flag is set to 0, string operations increment the index registers (ESI and/or EDI).
# Operation
DF = 0;
1
2
2
# Flags affected
The DF flag is set to 0. The CF, OF, ZF, SF, AF, and PF flags are unaffected.
# Exceptions
None.