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Samsung S3F80JB User Manual

Page 136

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INSTRUCTION SET

S3F80JB

6-8

INSTRUCTION SET NOTATION

Table 6-2. Flag Notation Conventions

Flag Description

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 Description

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