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| 型號： | COP8SDR9LVA8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-Bit CMOS Flash Based Microcontroller with 32k Memory, Virtual EEPROM and Brownout |
| 中文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 67/80頁 |
| 文件大?。?/td> | 972K |
| 代理商： | COP8SDR9LVA8 |
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19.0 Instruction Set
(Continued)
19.5 REGISTER AND SYMBOL DEFINITION
The following abbreviations represent the nomenclature
used in the instruction description and the COP8 cross-
assembler.
Registers
A
B
X
S
SP
PC
PU
PL
C
HC
GIE
8-Bit Accumulator Register
8-Bit Address Register
8-Bit Address Register
8-Bit Segment Register
8-Bit Stack Pointer Register
15-Bit Program Counter Register
Upper 7 Bits of PC
Lower 8 Bits of PC
1 Bit of PSW Register for Carry
1 Bit of PSW Register for Half Carry
1 Bit of PSW Register for Global Interrupt
Enable
Registers
VU
VL
Interrupt Vector Upper Byte
Interrupt Vector Lower Byte
Symbols
[B]
[X]
MD
Mem
Meml
Memory Indirectly Addressed by B Register
Memory Indirectly Addressed by X Register
Direct Addressed Memory
Direct Addressed Memory or [B]
Direct Addressed Memory or [B] or
Immediate Data
8-Bit Immediate Data
Register Memory: Addresses F0 to FF
(Includes B, X and SP)
Bit Number (0 to 7)
Loaded with
Exchanged with
Imm
Reg
Bit
←
19.6 INSTRUCTION SET SUMMARY
ADD
ADC
A,Meml
A,Meml
ADD
ADD with Carry
A
←
A + Meml
A
←
A + Meml + C, C
←
Carry,
HC
←
Half Carry
A
←
A MemI + C, C
←
Carry,
HC
←
Half Carry
A
←
A and Meml
Skip next if (A and Imm) = 0
A
←
A or Meml
A
←
A xor Meml
Compare MD and Imm, Do next if MD = Imm
Compare A and Meml, Do next if A = Meml
Compare A and Meml, Do next if A
≠
Meml
Compare A and Meml, Do next if A
>
Meml
Do next if lower 4 bits of B
≠
Imm
Reg
←
Reg 1, Skip if Reg = 0
1 to bit, Mem (bit = 0 to 7 immediate)
0 to bit, Mem
If bit
#
,A or Mem is true do next instruction
Reset Software Interrupt Pending Flag
A
Mem
A
[X]
A
←
Meml
A
←
[X]
B
←
Imm
Mem
←
Imm
Reg
←
Imm
A
[B], (B
←
B
±
1)
A
[X], (X
←
X
±
1)
A
←
[B], (B
←
B
±
1)
A
←
[X], (X
←
X
±
1)
[B]
←
Imm, (B
←
B
±
1)
A
←
0
SUBC
A,Meml
Subtract with Carry
AND
ANDSZ
OR
XOR
IFEQ
IFEQ
IFNE
IFGT
IFBNE
DRSZ
SBIT
RBIT
IFBIT
RPND
X
X
LD
LD
LD
LD
LD
X
X
LD
LD
LD
CLR
A,Meml
A,Imm
A,Meml
A,Meml
MD,Imm
A,Meml
A,Meml
A,Meml
#
Reg
#
,Mem
#
,Mem
#
,Mem
Logical AND
Logical AND Immed., Skip if Zero
Logical OR
Logical EXclusive OR
IF EQual
IF EQual
IF Not Equal
IF Greater Than
If B Not Equal
Decrement Reg., Skip if Zero
Set BIT
Reset BIT
IF BIT
Reset PeNDing Flag
EXchange A with Memory
EXchange A with Memory [X]
LoaD A with Memory
LoaD A with Memory [X]
LoaD B with Immed.
LoaD Memory Immed.
LoaD Register Memory Immed.
EXchange A with Memory [B]
EXchange A with Memory [X]
LoaD A with Memory [B]
LoaD A with Memory [X]
LoaD Memory [B] Immed.
CLeaR A
A,Mem
A,[X]
A,Meml
A,[X]
B,Imm
Mem,Imm
Reg,Imm
A, [B
±
]
A, [X
±
]
A, [B
±
]
A, [X
±
]
[B
±
],Imm
A
C
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