r/m[8|16|32] + 1 -> r/m[8|16|32]
Adds 1 to the operand and does not change the carry flag. Use the add instruction with an immediate value of 1 to change the carry flag,.
Add 1 to the contents of the byte at the effective address (addressed by the ESI register plus an offset of 1):
Add 1 to the 16-bit contents of the AX register:
Add 1 to the 32-bit contents at the effective address (addressed by the EDI register):