mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 252

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 6 XGATE (S12XGATEV2)
CPC
Operation
RS2 – RS1 - C
Subtracts the carry bit and the content of register RS2 from the content of register RS1 using binary
subtraction and discards the result.
CCR Effects
Code and CPU Cycles
252
N:
Z:
V:
C:
CPC RS1, RS2
N
Set if bit 15 of the result is set; cleared otherwise.
Set if the result is $0000; cleared otherwise.
Set if a two´s complement overflow resulted from the operation; cleared otherwise.
RS1[15] & RS2[15] & result[15] | RS1[15] & RS2[15] & result[15]
Set if there is a carry from the bit 15 of the result; cleared otherwise.
RS1[15] & RS2[15] | RS1[15] & result[15] | RS2[15] & result[15]
Z
V
Source Form
C
NONE (translates to SBC R0, RS1, RS2)
Address
MC9S12XDP512 Data Sheet, Rev. 2.17
Mode
TRI
Compare with Carry
0
0
0
1
1
0
Machine Code
0
0
RS1
RS2
Freescale Semiconductor
CPC
0
1
Cycles
P