cld

8086 and later

Clear Direction Flag

cld

These instructions clear various flags. CLC clears the carry flag; CLD clears the direction flag; CLI clears the interrupt flag (thus disabling interrupts); and CLTS clears the task-switched (TS) flag in CR0.

To set the carry, direction, or interrupt flags, use the STC, STD and STI instructions (STC). To invert the carry flag, use CMC (CMC).

Forms

Every form of cld the assembler accepts, from NASM's own instruction table. The second column is the processor that introduced the form; a badge marks a form that needs an extension, that is lockable, or that long mode dropped.

Form	Since	Notes
cld	8086