Zilog Z8F0130 - Manual (Page 270)

eZ8
™
CPU Core
User Manual
UM012820-0810 XOR Instruction
255
( 10010011b ) in Working Register R4, sets the S flag, and clears the Z
and V flags:
XOR R4, @R13

Object Code: B3 4D
If Register 3Ah contains the value F5h ( 11110101b ) and Register 42h
contains the value 0Ah ( 00001010b ), the following statement leaves the
value FFh ( 11111111b ) in Register 3Ah , sets the S flag, and clears the Z
and V flags:
XOR 3Ah, 42h

Object Code: B4 42 3A
If Working Register R5 contains the value F0h ( 11110000b ), Register
45h contains the value 3Ah , and Register 3Ah contains the value 7Fh
( 01111111b ), the following statement leaves the value 8Fh
( 10001111b ) in Working Register R5, sets the S flag, and clears the C
and V flags:
XOR R5, @45h

Object Code: B5 45 E5
If Register 7Ah contains the value F7h ( 11110111b ), the following state-
ment leaves the value 07h ( 00000111b ) in Register 7Ah and clears the Z,
V, and S flags:
XOR 7Ah, #F0h

Object Code: B6 7A F0
If Working Register R3 contains the value 3Eh and Register 3Eh contains
the value 6Ch ( 01101100b ), the following statement leaves the value
69h ( 01101001b ) in Register 3Eh and clears the Z, V, and S flags
XOR @R3, #05h

Object Code: B7 E3 05