參數(shù)資料
型號: NT6881
廠商: Electronic Theatre Controls, Inc.
英文描述: USB Keyboard Micro-Controller
中文描述: USB鍵盤微控制器
文件頁數(shù): 6/23頁
文件大小: 785K
代理商: NT6881
NT6881
6
Instruction Set List (contiuned)
Instruction Code
Meaning
Operation
LDA
Load accumulator with memory
M
A
LDX
Load index register X with memory
M
X
LDY
Load index register Y with memory
M
Y
LSR
Shift right one bit
0
M7
M0
C
NOP
No operation
No operation (2 cycles)
ORA
Logical OR
A + M
A
PHA
Push accumulator on stack
A
PHP
Push status register on stack
P
PLA
Pull accumulator from stack
A
PLP
Pull status register from stack
P
ROL
Rotate left through carry
C
M7
M0
C
ROR
Rotate right through carry
C
M7
M0
C
RTI
Return from interrupt
P
PC
RTS
Return from subroutine
PC
PC+1
PC
SBC
Subtract with borrow
A
M
C
A
C
SEC
Set carry
1
C
SED
Set decimal mode
1
D
SEI
Set interrupt disable status
1
I
STA
Store accumulator in memory
A
M
STX
Store index register X in memory
X
M
STY
Store index register Y in memory
Y
M
TAX
Transfer accumulator to index X
A
X
TAY
Transfer accumulator to index Y
A
Y
TSX
Transfer stack pointer to index X
S
X
TXA
Transfer index X to accumulator
X
A
TXS
Transfer index X to stack pointer
X
S
TYA
Transfer index Y to accumulator
Y
A
* For more detailed specifications, please refer to 6502 programming data book.
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