7630_03 Datasheet, PDF (233/238 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPENDIX
3.10 Machine instructions
Symbol
Function
STA
M←A
Addressing mode
Details
IMP
IMM
A
BIT, A, R ZP BIT, ZP, R
OP n # OP n # OP n # OP n # OP n # OP n #
Stores the contents of accumulator in memory.
85 3 2
STP
(Note 7)
STX
M←X
STY
M←Y
TAX
X←A
TAY
Y←A
TST
M = 0?
TSX
X←S
TXA
A←X
TXS
S←X
TYA
A←Y
WIT
Stops the oscillator.
42 2 1
Stores the contents of index register X in
memory.
Stores the contents of index register Y in
memory.
Transfers the contents of the accumulator to AA 1 1
index register X.
Transfers the contents of the accumulator to A8 1 1
index register Y.
Tests whether the contents of memory are “0”
or not.
Transfers the contents of the stack pointer to BA 1 1
index register X.
Transfers the contents of index register X to 8A 1 1
the accumulator.
Transfers the contents of index register X to 9A 1 1
the stack pointer.
Transfers the contents of index register Y to 98 1 1
the accumulator.
Stops the internal clock.
C2 2 1
86 3 2
84 3 2
64 3 2
Notes 1 : The number of cycles “n” is increased by 3 when T is 1.
2 : The number of cycles “n” is increased by 2 when T is 1.
3 : The number of cycles “n” is increased by 1 when T is 1.
4 : The number of cycles “n” is increased by 1 when branching has occurred.
5 : The number of cycles “n” is increased by 1 when branching to the same page area has occurred.
The number of cycles “n” is increased by 2 when branching to the differrent page area has occurred.
6 : The number of cycles “n” is increased by 1 when branching to the differrent page area has occurred.
7 : The number of cycles “n” is 2 when the STP instruction is disabled.
8 : V flag is invalid in decimal operation mode.
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7630 Group User’s Manual