Operation:
Destination Sign-Extended -->; Destination
Compatibility: MC68020/MC68030/MC68040
Assembler Syntax:
EXTB.L Dn extends byte to long word
Attributes: Size = (Long)
Description: Extends a byte in a data register to a long word
by replicating the sign bit to the left. Bit [7] of the
designated data register is copied to bits [31:16] of that
data register.
Condition Codes:
\c32200
X Not affected.
N Set if the result is negative. Cleared otherwise.
Z Set if the result is zero. Cleared otherwise.
V Always cleared.
C Always cleared.
Instruction Format:
\i1-+--+--+++---3Reg,
Instruction Fields:
Register field -- Specifies the data register to be
sign-extended.
Related Instructions:
EXT,446
.446448