NEC PD75402A User Manual
Page 165
154
CHAPTER 9. INSTRUCTION SET
mem. bit
2
2
(mem. bit)
←
1
*2
f mem. bit
2
2
(f mem.bit)
←
1
*3
mem. bit
2
2
(mem. bit)
←
0
*2
f mem. bit
2
2
(f mem. bit)
←
0
*3
mem. bit
2
2 + S
Skip if (mem. bit) = 1
*2
(mem. bit) = 1
f mem. bit
2
2 + S
Skip if (f mem. bit) = 1
*3
(f mem. bit) = 1
mem. bit
2
2 + S
Skip if (mem. bit) = 0
*2
(mem. bit) = 0
f mem. bit
2
2 + S
Skip if (f mem. bit) = 0
*3
(f mem. bit) = 0
SKTCLR
f mem. bit
2
2 + S
Skip if (f mem. bit) = 1 and clear
*3
(f mem. bit) = 1
AND 1
CY, f mem. bit
2
2
CY
←
CY
∧
(f mem. bit)
*3
OR 1
CY, f mem. bit
2
2
CY
←
CY
∨
(f mem. bit)
*3
XOR 1
CY, f mem. bit
2
2
CY
←
CY
∨
(f mem. bit)
*3
addr
–
–
PC
10 – 0
←
addr
*4
BR
$addr
1
2
PC
10 – 0
←
addr
*5
BRCB
! caddr
2
2
PC
10 – 0
←
caddr
*6
(SP–4) (SP –1) (SP–2)
←
0, PC
10 – 0
CALLF
! faddr
2
2
(SP – 3)
←
0000
*7
PC
10 – 0
←
faddr, SP
←
SP – 4
PC
10 – 0
←
(SP) (SP + 3) (SP + 2)
SP
←
SP + 4
PC
10 – 0
(SP) (SP + 3) (SP + 2)
RETS
1
3 + S
SP
←
SP + 4,
None
then skip unconditionally
PC
10 – 0
←
(SP) (SP + 3) (SP + 2)
RETI
1
3
PSW
←
(SP + 4) (SP + 5),
SP
←
SP + 6
PUSH
rp
1
1
(SP–1) (SP–2)
←
rp, SP
←
SP–2
POP
rp
1
1
rp
←
(SP + 1) (SP) , SP
←
SP + 2
2
2
IME (IPS. 3)
←
1
IE
×××
2
2
IE
×××
←
1
2
2
IME (IPS. 3)
←
0
IE
×××
2
2
IE
×××
←
0
Skip
Condition
Addressing
Area
Mnemonic
Operand
Operation
CLR 1
SKT
SKF
SET 1
Note
Bytes
Machine
Cycle
The assembler selects the opti-
mum instruction from among
BRCB!, caddr, and BR$ addr.
RET
1
3
DI
EI
Branch
instructions
Subroutine stack control instructions
Interrupt control
instructions
Bit manipulation instructions
Note
Instruction Group
(
)