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INC
Increments the destination operand by 1.
The following table covers what the source and destinations can be:
| source | destination(s) |
|---|---|
| #I | reg |
| #I | mN |
Support LOCK
The instruction is available in 64-bit mode, 32-bit mode, and 16-bit mode.
The INC instruction does not affect the Carry Flag (CF). This behavior differs from ADD rN, 1, and can lead to logic errors if the instruction is used in a loop counter where a carry-out is expected to trigger a condition.
When using INC with a memory operand in a multi-processor environment, the LOCK prefix SHALL be used to ensure atomicity, as the standard read-modify-write cycle is not inherently atomic.