Freescale Semiconductor MC9S12XDP512 CPC Compare with Carry CPC

Chapter 9 XGATE (S12XGATEV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
Freescale Semiconductor 443
Operation
RS2 – RS1 − Χ ⇒ NONE (translates to SBC R0, RS1, RS2)
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
CPC Compare with Carry CPC
NZVC
∆∆∆∆
N: Set if bit 15 of the result is set; cleared otherwise.
Z: Set if the result is $0000; cleared otherwise.
V: 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]
C: 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]
Source Form Address
Mode Machine Code Cycles
CPC RS1, RS2 TRI 0 0 0 1 1 0 0 0 RS1 RS2 0 1 P