W65C02S Datasheet, PDF (33/40 Pages) List of Unclassifed Manufacturers – Microprocessor

The Western Design Center, Inc.
Address Mode
Note Cycle VPB
8b. Stop the Clock i
STP
1 OpCode, 1 byte, 3 cycles
RESB=1
RESB=0
RESB=0
RESB=1
1
1
2
1
3
1
1c
1
1b
1
1a
1
1
1
8c. Wait for Interrupt i
1
1
WAI
(4) 2
1
1 OpCode, 1 byte, 3 cycles
3
1
IRQB NMIB
1
1
9a. Relative r
BCC, BCS, BEQ, BMI, BNE, BPL,
BRA, BVC, BVS
9 OpCodes, 2 bytes, 2,3 and 4 cycles
1
1
(2) 2
1
(3) 1
1
9b. Relative Bit Branch r
(2) 1
1
BBRx, BBSx
(3) 2
1
16 OpCodes, 3 bytes, 5,6 and 7 cycles
3
1
4
1
5
1
10a. Stack s
1
1
ABORTB, IRQB, NMIB, RESB
2
1
4 hardware interrupts, 0 bytes, 7 cycles
3
1
(5) 4
1
5
1
6
0
7
0
1
1
10b. Stack (Software Interrupts) s
1
1
BRK
2
1
1 OpCode, 2 bytes, 7 cycles
3
1
4
1
5
1
6
0
7
1
1
10c. Stack (Return from interrupt) s
1
1
RTI
2
1
1 OpCode, 1 byte, 6 cycles
3
1
4
1
5
1
6
1
1
1
10d. Stack (Return from subroutine) s
RTS
1 OpCode, 1 byte, 6 cycles
10e. Stack s
PHA, PHP, PHX, PHY
4 OpCodes, 1 byte, 3 cycles
10f. Stack s
PLA, PLP, PLX, PLY
4 OpCodes, 1 byte, 4 cycles
1
1
2
1
3
1
4
1
5
1
6
1
1
1
1
1
2
1
3
1
1
1
1
1
2
1
3
1
4
1
1
1
11a. Zero Page zp
ADC, AND, BIT, CMP, CPX, CPY,
EOR, LDA, LDX, LDY, ORA, SBC,
STA, STX, STY, STZ
16 OpCodes, 2 bytes, 3 and 4 cycles
1
1
2
1
3
1
1
1
MLB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SYNC
1
0
0
0
0
0
1
1
0
0
1
1
0
1
1
0
0
0
0
1
0
0
0
0
0
0
1
1
0
0
0
0
0
1
1
0
0
0
0
0
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
Address Bus
PC
PC+1
PC+1
PC+1
PC+1
PC+1
PC+1
PC
PC+1
PC+1
PC+1
PC
PC+1
New PC
PC
PC+1
0,zp
PC+2
PC+Offset
PC
PC
01,S
01,S-1
01,S-2
VA
VA+1
New PC
PC
PC+1
S
S-1
S-2
VA
VA+1
New PC
PC
PC+1
S+1
S+2
S+3
PC+1
Return PC
PC
PC+1
PC+1
S+1
S+2
PC+1
Return PC
PC
PC+1
S
PC+1
PC
PC+1
PC+1
S+1
PC+1
PC
PC+1
0,zp
PC+2
W65C02S Datasheet
Data Bus
OpCode
IO
IO
RES(BRK)
RES(BRK)
RES(BRK)
BEGIN
OpCode
IO
IO
IRQ(BRK)
OpCode
Offset
OpCode
OpCode
zp
Data
Offset
New OpCode
not used
not used
Return PCH
Return PCL
Return P
New PCL
New PCH
New OpCode
OpCode
not used
Return PCH
Return PCL+2
Return P
New PCL
New PCH
New OpCode
OpCode
Not Used
Return P
Return PCL
Return PCH
IO
New OpCode
OpCode
not used
not used
Return PCL
Return PCH
IO
New OpCode
OpCode
not used
Register Value
New OpCode
OpCode
not used
not used
Register Value
New OpCode
OpCode
zp
Data
New OpCode
RWB
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1/0
1
The Western Design Center, Inc.
W65C02S Datasheet
33