Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

S3C9454B View Datasheet(PDF) - Samsung

Part Name
Description
MFG CO.
S3C9454B
Samsung
Samsung Samsung
'S3C9454B' PDF : 199 Pages View PDF
S3C9454B/F9454B
SAM88RCRI INSTRUCTION SET
ADC — Add with Carry
ADC
Operation:
dst,src
dst dst + src + c
The source operand, along with the setting of the carry flag, is added to the destination operand
and the sum is stored in the destination. The contents of the source are unaffected.
Two's-complement addition is performed. In multiple precision arithmetic, this instruction permits
the carry from the addition of low-order operands to be carried into the addition of high-order
operands.
Flags:
C: Set if there is a carry from the most significant bit of the result; cleared otherwise.
Z: Set if the result is "0"; cleared otherwise.
S: Set if the result is negative; cleared otherwise.
V: Set if arithmetic overflow occurs, that is, if both operands are of the same sign and the
result is of the opposite sign; cleared otherwise.
Format:
opc dst | src
Bytes
2
Cycles
4
6
Opcode
(Hex)
12
13
Addr Mode
dst src
r
r
r
lr
opc
src
dst
3
6
6
14
R
R
15
R
IR
opc
dst
src
3
6
16
R
IM
Examples:
Given: R1 = 10H, R2 = 03H, C flag = "1", register 01H = 20H, register 02H = 03H, and
register 03H = 0AH:
ADC
ADC
ADC
ADC
ADC
R1,R2
R1,@R2
01H,02H
01H,@02H
01H,#11H
R1 = 14H, R2 = 03H
R1 = 1BH, R2 = 03H
Register 01H = 24H, register 02H = 03H
Register 01H = 2BH, register 02H = 03H
Register 01H = 32H
In the first example, destination register R1 contains the value 10H, the carry flag is set to "1", and
the source working register R2 contains the value 03H. The statement "ADC R1,R2" adds 03H
and the carry flag value ("1") to the destination value 10H, leaving 14H in register R1.
6-11
Share Link: GO URL

All Rights Reserved © qdatasheet.com  [ Privacy Policy ] [ Contact Us ]