Intel 8253 - Page 487

4/17/98 6-87 Addressing Modes and Data Types
CPL Integer Ones Complement
Syntax: CPL Rd
Operation: Rd <-- (
Rd)
Description: Performs a ones complement of the destination operand specified by the register Rd.
The result is stored back into Rd. The destination may be either a byte or a word.
Size: Byte, Word
Flags Updated: N, Z
Bytes: 2
Clocks: 3
Encoding:
1 0 0 1 SZ 0 0 0
d d d d 1 0 1 0