16.66 EON (shifted register)
Bitwise Exclusive OR NOT (shifted register).
Syntax
EON
Wd
, Wn
, Wm
{, shift
#amount
} ; 32-bit general registers
EON
Xd
, Xn
, Xm
{, shift
#amount
} ; 64-bit general registers
Where:
Wd
-
Is the 32-bit name of the general-purpose destination register.
Wn
-
Is the 32-bit name of the first general-purpose source register.
Wm
-
Is the 32-bit name of the second general-purpose source register.
amount
-
Depends on the instruction variant:
- 32-bit general registers
-
Is the shift amount, in the range 0 to 31, defaulting to 0.
- 64-bit general registers
-
Is the shift amount, in the range 0 to 63, defaulting to 0.
Xd
-
Is the 64-bit name of the general-purpose destination register.
Xn
-
Is the 64-bit name of the first general-purpose source register.
Xm
-
Is the 64-bit name of the second general-purpose source register.
shift
-
Is the optional shift to be applied to the final source, defaulting to
LSL
, and can be one ofLSL
,LSR
,ASR
, orROR
.
Operation
Bitwise Exclusive OR NOT (shifted register) performs a bitwise Exclusive OR NOT of a register value and an optionally-shifted register value, and writes the result to the destination register.
, where R
d = R
n EOR NOT shift
(R
m, amount
)
is either R
W
or X
.