S912XEG128J2MAA Datasheet, PDF (424/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 10 XGATE (S12XGATEV3)
COM
One’s Complement
COM
Operation
~RS ⇒ RD (translates to XNOR RD, R0, RS)
~RD ⇒ RD (translates to XNOR RD, R0, RD)
Performs a one’s complement on a general purpose register.
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
COM RD, RS
COM RD
Address
Mode
Machine Code
Cycles
TRI
0 0 0 1 0 RD 0 0 0 RS 1 1
P
TRI
0 0 0 1 0 RD 0 0 0 RD 1 1
P
MC9S12XE-Family Reference Manual Rev. 1.25
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