mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 216

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

Chapter 6 XGATE (S12XGATEV2)
ADC
Operation
RS1 + RS2 + C
Adds the content of register RS1, the content of register RS2 and the value of the Carry bit using binary
addition and stores the result in the destination register RD. The Zero Flag is also carried forward from the
previous operation allowing 32 and more bit additions.
Example:
CCR Effects
Code and CPU Cycles
216
N:
Z:
V:
C:
ADC RD, RS1, RS2
N
Set if bit 15 of the result is set; cleared otherwise.
Set if the result is $0000 and Z was set before this operation; cleared otherwise.
Set if a two´s complement overflow resulted from the operation; cleared otherwise.
RS1[15] & RS2[15] & RD[15]
Set if there is a carry from bit 15 of the result; cleared otherwise.
RS1[15] & RS2[15] | RS1[15] & RD[15]
Z
ADC
ADC
BCC
V
Source Form
C
RD
R6,R2,R2
R7,R3,R3 ; R7:R6 = R5:R4 + R3:R2
; conditional branch on 32 bit addition
new
| RS1[15] & RS2[15] & RD[15]
Address
MC9S12XDP512 Data Sheet, Rev. 2.17
Mode
TRI
new
Add with Carry
| RS2[15] & RD[15]
0
0
0
1
1
new
new
Machine Code
RD
RS1
RS2
Freescale Semiconductor
ADC
1
1
Cycles
P