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INSTRUCTION SET
INSTRUCTION SET NOTATION
6-8
Table 6-2. Flag Notation Conventions
Flag
C
Carry flag
Z
Zero flag
S
Sign flag
V
Overflow flag
D
Decimal-adjust flag
H
Half-carry flag
0
Cleared to logic zero
1
Set to logic one
*
Set or cleared according to operation
–
Value is unaffected
x
Value is undefined
Table 6-3. Instruction Set Symbols
Symbol
dst
Destination operand
src
Source operand
@
Indirect register address prefix
PC
Program counter
IP
Instruction pointer
FLAGS
Flags register (D5H)
RP
Register pointer
#
Immediate operand or register address prefix
H
Hexadecimal number suffix
D
Decimal number suffix
B
Binary number suffix
opc
Opcode
S3C8248/C8245/P8245/C8247/C8249/P8249
Description
Description
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