LFEBS12UB Freescale Semiconductor, LFEBS12UB Datasheet - Page 392
LFEBS12UB
Manufacturer Part Number
LFEBS12UB
Description
KIT STUDENT LEARNING S12 DG128
Manufacturer
Freescale Semiconductor
Specifications of LFEBS12UB
Architecture
8/16-bit
Code Gen Tools Included
Code Warrior
Silicon Manufacturer
Freescale
Core Architecture
S12
Core Sub-architecture
S12
Silicon Core Number
MC9S12
Silicon Family Name
S12D
Kit Contents
HCS12 DG128 Learning Kit
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 10 XGATE (S12XGATEV3)
ADD
Operation
RS1 + RS2
RD + IMM16 ⇒ RD (translates to ADDL RD, #IMM16[7:0]; ADDH RD, #IMM16[15:8])
Performs a 16 bit addition and stores the result in the destination register RD.
CCR Effects
Code and CPU Cycles
392
N:
Z:
V:
C:
ADD RD, RS1, RS2
ADD RD, #IMM16
N
∆
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
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] & RD[15]
Refer to ADDH instruction for #IMM16 operations.
Set if there is a carry from bit 15 of the result; cleared otherwise.
RS1[15] & RS2[15] | RS1[15] & RD[15]
Refer to ADDH instruction for #IMM16 operations.
Z
∆
V
∆
Source Form
⇒ RD
When using immediate addressing mode (ADD RD, #IMM16), the V-flag
and the C-Flag of the first instruction (ADDL RD, #IMM16[7:0]) are not
considered by the second instruction (ADDH RD, #IMM16[15:8]).
⇒ Don’t rely on the V-Flag if RD + IMM16[7:0] ≥ 2
⇒ Don’t rely on the C-Flag if RD + IMM16[7:0] ≥ 2
C
∆
new
MC9S12XE-Family Reference Manual , Rev. 1.23
| RS1[15] & RS2[15] & RD[15]
TRI
IMM8
IMM8
Address
Mode
new
| RS2[15] & RD[15]
Add without Carry
0
1
1
NOTE
0
1
1
0
1
1
1
0
0
new
new
1
0
1
Machine Code
RD
RD
RD
15
16
.
.
RS1
IMM16[15:8]
IMM16[7:0]
RS2
Freescale Semiconductor
ADD
1
0
Cycles
P
P
P
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