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NEC PD75402A User Manual

Page 164

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153

CHAPTER 9. INSTRUCTION SET

A, #n 4

1

1

A

n 4

Stack A

XA, #n 8

2

2

XA

n 8

Stack A

HL, #n 8

2

2

HL

n 8

Stack B

A, @HL

1

1

A

(HL)

*1

MOV

@HL, A

1

1

(HL)

A

*1

A, mem

2

2

A

(mem)

*2

XA, mem

2

2

XA

(mem)

*2

mem, A

2

2

(mem)

A

*2

mem, XA

2

2

(mem)

XA

*2

A, @HL

1

1

A

(HL)

*1

A, mem

2

2

A

(mem)

*2

XA, mem

2

2

XA

(mem)

*2

A, reg1

1

1

A

reg1

MOVT

XA, @PCXA

1

3

XA

(PC

10 – 8

+ XA)

ROM

A, #n 4

1

1 + S

A

A + n 4

carry

A, @HL

1

1 + S

A

A + (HL)

*1

carry

ADDC

A, @HL

1

1

A, CY

A + (HL) + CY

*1

AND

A. @HL

1

1

A

A

(HL)

*1

OR

A, @HL

1

1

A

A

(HL)

*1

XOR

A, @HL

1

1

A

A

(HL)

*1

RORC

A

1

1

CY

A

0

, A

3

CY, A

n–1

A

n

NOT

A

2

2

A

A

reg

1

1 + S

reg

reg + 1

reg = 0

mem

2

2 + S

(mem)

(mem) + 1

*2

(mem) = 0

DECS

reg

1

1 + S

reg

reg – 1

reg = FH

reg, #n 4

2

2 + S

Skip if reg = n 4

reg = n4

A, @HL

1

1 + S

Skip if A = (HL)

*1

A = (HL)

SET 1

CY

1

1

CY

1

CLR 1

CY

1

1

CY

0

SKT

CY

1

1 + S

Skip if CY = 1

CY = 1

NOT 1

CY

1

1

CY

CY

Operation

Skip

Condition

Addressing

Area

XCH

Note

1. Instruction Group

2. Accumulator operation instructions

3. Increment/decrement instructions

4. Compare instructions

Note 1

Mnemonic

Operand

ADDS

Move instructions

Arithmetic and

logic instructions

Note 2

Note 4

Note 3

Carry flag

operation

instructions

Machine

Cycle

Bytes

INCS

SKE

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