NT68F62 Datasheet, PDF (8/57 Pages) List of Unclassifed Manufacturers – 8-Bit Microcontroller for Monitor (32K Flash MTP Type)

Instruction Set List (continued)
Instruction Code
JMP
JSR
LDA
LDX
LDY
LSR
NOP
ORA
PHA
PHP
PLA
PLP
ROL
ROR
RTI
RTS
SBC
SEC
SED
SEI
STA
STX
STY
TAX
TAY
TSX
TXA
TXS
TYA
Meaning
Jump to new location
Jump to subroutine
Load accumulator with memory
Load index register X with memory
Load index register Y with memory
Shift right one bit
No operation
Logical OR
Push accumulator on stack
Push status register on stack
Pull accumulator from stack
Pull status register from stack
Rotate left through carry
Rotate right through carry
Return from interrupt
Return from subroutine
Subtract with borrow
Set carry
Set decimal mode
Set interrupt disable status
Store accumulator in memory
Store index register X in memory
Store index register Y in memory
Transfer accumulator to index X
Transfer accumulator to index Y
Transfer stack pointer to index X
Transfer index X to accumulator
Transfer index X to stack pointer
Transfer index Y to accumulator
* Refer to 6502 programming data book for more details.
NT68F62
Operation
(PC+1)→ PCL, (PC+2)→ PCH
PC+2↓, (PC+1)→ PCL, (PC+2)→ PCH
M→A
M→X
M→Y
0 → M7…M0 → C
No operation (2 cycles)
A+M→A
A↓
P↓
A↑
P↑
C ← M7…M0 ← C
C → M7…M0 → C
P ↑, PC ↑
PC ↑, PC+1 → PC
A － M － C → A, C
1→C
1→D
1→I
A→M
X→M
Y→M
A→X
A→Y
S→X
X→A
X→S
Y→A
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