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參數(shù)資料
| 型號(hào)： | COP942CT |
| 文件頁(yè)數(shù)： | 25/36頁(yè) |
| 文件大?。?/td> | 479K |
| 代理商： | COP942CT |
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Instruction Set
REGISTER AND SYMBOL DEFINITIONS
Registers
A
B
X
SP
PC
PU
PL
C
HC
GIE 1-bit of PSW register for global interrupt enable
8-bit Accumulator register
8-bit Address register
8-bit Address 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
Symbols
[B]
[X]
MD
Mem
MemI Direct addressed memory, [B], or Immediate data
Imm
8-bit Immediate data
Reg
Register memory: addresses F0 to FF (Includes B,
X, and SP)
Bit
Bit number (0 to 7)
←
Loaded with
Exchanged with
Memory indirectly addressed by B register
Memory indirectly addressed by X register
Direct addressed memory
Direct addressed memory, or [B]
Instr
Function
Register Operation
ADD
ADC
SUBC
AND
OR
XOR
IFEQ
IFGT
IFBNE
DRSZ
SBIT
RBIT
IFBIT
X
LD
LD
LD
X
X
LD
LD
LD
CLRA
INC
DEC
LAID
DCOR
RRC
SWAP
SC
RC
IFC
IFNC
JMPL
JMP
A, MemI
A, MemI
A, MemI
A, MemI
A, MemI
A, MemI
A, MemI
A, MemI
#
Reg
#
, Mem
#
, Mem
#
, Mem
A, Mem
A, MemI
Mem, Imm
Reg, Imm
A, [B
±
]
A, [X
±
]
A, [B
±
]
A, [X
±
]
[B
±
], Imm
Add
Add with carry
Subtract with carry
Logical AND
Logical OR
Logical Exclusive-OR
IF equal
IF greater than
IF B not equal
Decrement Reg., skip if zero
Set bit
Reset bit
If bit
Exchange A with memory
Load A with memory
Load Direct 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 immediate
Clear A
Increment A
Decrement A
Load A indirect from ROM
Decimal Correct A
Rotate right through carry
Swap nibbles of A
Set C
Reset C
If C
If Not C
Jump absolute long
Jump absolute
A
←
A + MemI
A
←
A + MemI + C, C
←
Carry
A
←
A + MemI +C, C
←
Carry
A
←
A and MemI
A
←
A or MemI
A
←
A xor MemI
Compare A and MemI, Do next if A = MemI
Compare A and MemI, Do next if A
>
MemI
Do next if lower 4 bits of B not = Imm
Reg
←
Reg 1, skip if Reg goes to 0
1 to Mem.bit (bit = 0 to 7 immediate)
0 to Mem.bit (bit = 0 to 7 immediate)
If Mem.bit is true, do next instruction
A
Mem
A
←
MemI
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
A
←
A + 1
A
←
A 1
A
←
ROM(PU,A)
A
←
BCD correction (follows ADC, SUBC)
C
→
A7
→
…
→
A0
→
C
A7 … A4
A3 … A0
C
←
1
C
←
0
If C is true, do next instruction
If C is not true, do next instruction
PC
←
ii (ii = 15 bits, 0 to 32k)
PC11...PC0
←
i (i = 12 bits)
PC15...PC12 remain unchanged
PC
←
PC + r (r is 31 to +32, not 1)
A
A
A
A
A
JP
Addr.
Jump relative short
C
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相關(guān)代理商/技術(shù)參數(shù) |
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| COP942C-XXX/N | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:8-Bit CMOS ROM Based Microcontrollers with 1k or 2k |
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