5.83. Exclusive Logical OR


Addr
Mode  Mnemonic          Format/Opcode
                           8      4      4
                        ----------------------
R     XORR   RA,RB      |  E5  |  RA  |  RB  |
                        ----------------------
                           8      4      4           16
D     XOR    RA,ADDR    --------------------------------------
DX    XOR    RA,ADDR,RX |  E4  |  RA  |  RX  |  |    ADDR    |
                        --------------------------------------
                           8      4      4           16
                        --------------------------------------
IM    XORM   RA,DATA    |  4A  |  RA  |  9   |  |    DATA    |
                        --------------------------------------

Description. The Derived Operand, DO, is bit-by-bit exclusively ORed with the contents of RA. The result is stored in RA. The condition status, CS, is set based on the result in RA.

Register Transfer Description.

(RA) <-- (RA) XOR DO;
(CS) <-- 0010  if (RA) = 0;
(CS) <-- 0001  if (RA) < 0;
(CS) <-- 0100  if (RA) >= 0;

Registers Affected. RA, CS