S912XEG128J2MAA Datasheet, PDF (448/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 10 XGATE (S12XGATEV3)
SEX
Sign Extend Byte to Word
SEX
Operation
The result in RD is the 16 bit sign extended representation of the original two’s complement number in the
low byte of RD.L.
CCR Effects
NZVC
∆ ∆ 0—
N: Set if bit 15 of the result is set; cleared otherwise.
Z: Set if the result is $0000; cleared otherwise.
V: 0; cleared.
C: Not affected.
Code and CPU Cycles
Source Form
SEX RD
Address
Mode
MON
00000
Machine Code
Cycles
RD 1 1 1 1 0 1 0 0
P
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