D17133CS datasheet(202/289 Pages) NEC

202 / 289 page

CHAPTER 18

INSTRUCTION SET

187

18.3 LIST OF THE INSTRUCTION SET

Group

Mnemonic Operand

Operation

Add

ADD

r, m

(r)

← (r) + (m)

00000

m, #n4

(m)

← (m) + n4

10000

ADDC

r, m

(r)

← (r) + (m) + CY

00010

m, #n4

(m)

← (m) + n4 + CY

10010

INC

← AR + 1

00111

000

1001

0000

← IX + 1

00111

000

1000

0000

Subtract

SUB

r, m

(r)

← (r) – (m)

00001

m, #n4

(m)

← (m) – n4

10001

SUBC

r, m

(r)

← (r) – (m) –CY

00011

m, #n4

(m)

← (m) – n4 –CY

10011

Logical

r, m

(r)

← (r)

(m)

00110

Operation

m, #n4

(m)

← (m) n4

10110

AND

r, m

(r)

← (r)

(m)

00100

m, #n4

(m)

← (m)

10100

XOR

r, m

(r)

← (r)

(m)

00101

m, #n4

(m)

← (m)

10101

Test

SKT

m, #n

CMP

← 0, if (m) n=n, then skip

11110

SKF

m, #n

CMP

← 0, if (m) n=0, then skip

11111

Compare

SKE

m, #n4

(m) –n4, skip if zero

01001

SKNE

m, #n4

(m) –n4, skip if not zero

01011

SKGE

m, #n4

(m) –n4, skip if not borrow

11001

SKLT

m, #n4

(m) –n4, skip if borrow

11011

Rotate

RORC

→ (r)b3 → (r)b2 → (r)b1 → (r)b0

00111

000

0111

Transfer

r, m

(r)

← (m)

01000

m, r

(m)

← (r)

11000

MOV

@r, m

if MPE = 1: (MP, (r))

← (m)

01010

if MPE = 0: (BANK, mR, (r))

← (m)

m, @r

if MPE = 1: (m)

← (MP, (r))

11010

if MPE = 0: (m)

← (BANK, mR, (r))

m, #n4

(m)

← n4

11101

MOVTNote DBF, @AR SP

← SP–1, ASR ← PC, PC ← AR,

00111

000

0001

0000

DBF

← (PC), PC ← ASR,

← SP+1

Note As an exception, execution of MOVT instruction requires two instruction cycles.

Machine Code

OP Code

Operand

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