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SXTB
Signed Extend Byte.
This instruction is an alias of SBFM
.
Syntax
SXTB
Wd
, Wn
; 32-bit general registers
Equivalent to SBFM
Wd
, Wn
, #0, #7
SXTB
Xd
, Wn
; 64-bit general registers
Equivalent to SBFM
Xd
, Xn
, #0, #7
Where:
Wd
-
Is the 32-bit name of the general-purpose destination register.
Xd
-
Is the 64-bit name of the general-purpose destination register.
Wn
-
Is the 32-bit name of the general-purpose source register.
Usage
Signed Extend Byte extracts an 8-bit value from a register, sign-extends it to the size of the register, and writes the result to the destination register.