Siemens C16 Series Instruction Set Manual page 33

ADDB
Syntax
Operation
Data Types
Description
Condition Flags
Addressing Modes
Semiconductor Group
30Mar98@15:00h
Integer Addition
ADDB op1, op2
(op1) ← (op1) + (op2)
BYTE
Performs a 2's complement binary addition of the source operand speci-
fied by op2 and the destination operand specified by op1. The sum is then
stored in op1.
E Z
* *
E Set if the value of op2 represents the lowest possible negative number.
Cleared otherwise. Used to signal the end of a table.
Z Set if result equals zero. Cleared otherwise.
V Set if an arithmetic overflow occurred, ie. the result cannot be repre-
sented in the specified data type. Cleared otherwise.
C Set if a carry is generated from the most significant bit of the specified
data type. Cleared otherwise.
N Set if the most significant bit of the result is set. Cleared otherwise.
Mnemonic
ADDB Rb , Rb
n m
ADDB Rb , [Rw
n
ADDB Rb , [Rw
n
ADDB Rb , #data3
n
ADDB reg, #data16
ADDB reg, mem
ADDB mem, reg
C166 Family Instruction Set
V C N
* * *
Format
01 nm
] 09 n:10ii
i
+] 09 n:11ii
i
09 n:0###
07 RR ## xx
03 RR MM MM
05 RR MM MM
33
Instruction Description
ADDB
Version 1.2, 12.97
Bytes
2
2
2
2
4
4
4