Instruction set summary – Rainbow Electronics ATtiny43U User Manual

Page 169

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169

8048B–AVR–03/09

23. Instruction Set Summary

Mnemonics

Operands

Description

Operation

Flags

#Clocks

ARITHMETIC AND LOGIC INSTRUCTIONS

ADD

Rd, Rr

Add two Registers

Rd

Rd + Rr

Z,C,N,V,H

1

ADC

Rd, Rr

Add with Carry two Registers

Rd

Rd + Rr + C

Z,C,N,V,H

1

ADIW

Rdl,K

Add Immediate to Word

Rdh:Rdl

Rdh:Rdl + K

Z,C,N,V,S

2

SUB

Rd, Rr

Subtract two Registers

Rd

Rd - Rr

Z,C,N,V,H

1

SUBI

Rd, K

Subtract Constant from Register

Rd

Rd - K

Z,C,N,V,H

1

SBC

Rd, Rr

Subtract with Carry two Registers

Rd

Rd - Rr - C

Z,C,N,V,H

1

SBCI

Rd, K

Subtract with Carry Constant from Reg.

Rd

Rd - K - C

Z,C,N,V,H

1

SBIW

Rdl,K

Subtract Immediate from Word

Rdh:Rdl

Rdh:Rdl - K

Z,C,N,V,S

2

AND

Rd, Rr

Logical AND Registers

Rd

Rd

Rr

Z,N,V

1

ANDI

Rd, K

Logical AND Register and Constant

Rd

Rd

K

Z,N,V

1

OR

Rd, Rr

Logical OR Registers

Rd

Rd v Rr

Z,N,V

1

ORI

Rd, K

Logical OR Register and Constant

Rd

Rd v K

Z,N,V

1

EOR

Rd, Rr

Exclusive OR Registers

Rd

Rd

Rr

Z,N,V

1

COM

Rd

One’s Complement

Rd

0xFF

Rd

Z,C,N,V

1

NEG

Rd

Two’s Complement

Rd

0x00

Rd

Z,C,N,V,H

1

SBR

Rd,K

Set Bit(s) in Register

Rd

Rd v K

Z,N,V

1

CBR

Rd,K

Clear Bit(s) in Register

Rd

Rd

(0xFF - K)

Z,N,V

1

INC

Rd

Increment

Rd

Rd + 1

Z,N,V

1

DEC

Rd

Decrement

Rd

Rd

1

Z,N,V

1

TST

Rd

Test for Zero or Minus

Rd

Rd

Rd

Z,N,V

1

CLR

Rd

Clear Register

Rd

Rd

Rd

Z,N,V

1

SER

Rd

Set Register

Rd

0xFF

None

1

BRANCH INSTRUCTIONS

RJMP

k

Relative Jump

PC

PC + k + 1

None

2

IJMP

Indirect Jump to (Z)

PC

Z

None

2

RCALL

k

Relative Subroutine Call

PC

PC + k + 1

None

3

ICALL

Indirect Call to (Z)

PC

Z

None

3

RET

Subroutine Return

PC

STACK

None

4

RETI

Interrupt Return

PC

STACK

I

4

CPSE

Rd,Rr

Compare, Skip if Equal

if (Rd = Rr) PC

PC + 2 or 3

None

1/2/3

CP

Rd,Rr

Compare

Rd

Rr

Z, N,V,C,H

1

CPC

Rd,Rr

Compare with Carry

Rd

Rr

C

Z, N,V,C,H

1

CPI

Rd,K

Compare Register with Immediate

Rd

K

Z, N,V,C,H

1

SBRC

Rr, b

Skip if Bit in Register Cleared

if (Rr(b)=0) PC

PC + 2 or 3

None

1/2/3

SBRS

Rr, b

Skip if Bit in Register is Set

if (Rr(b)=1) PC

PC + 2 or 3

None

1/2/3

SBIC

P, b

Skip if Bit in I/O Register Cleared

if (P(b)=0) PC

PC + 2 or 3

None

1/2/3

SBIS

P, b

Skip if Bit in I/O Register is Set

if (P(b)=1) PC

PC + 2 or 3

None

1/2/3

BRBS

s, k

Branch if Status Flag Set

if (SREG(s) = 1) then PC

PC+k + 1

None

1/2

BRBC

s, k

Branch if Status Flag Cleared

if (SREG(s) = 0) then PC

PC+k + 1

None

1/2

BREQ

k

Branch if Equal

if (Z = 1) then PC

PC + k + 1

None

1/2

BRNE

k

Branch if Not Equal

if (Z = 0) then PC

PC + k + 1

None

1/2

BRCS

k

Branch if Carry Set

if (C = 1) then PC

PC + k + 1

None

1/2

BRCC

k

Branch if Carry Cleared

if (C = 0) then PC

PC + k + 1

None

1/2

BRSH

k

Branch if Same or Higher

if (C = 0) then PC

PC + k + 1

None

1/2

BRLO

k

Branch if Lower

if (C = 1) then PC

PC + k + 1

None

1/2

BRMI

k

Branch if Minus

if (N = 1) then PC

PC + k + 1

None

1/2

BRPL

k

Branch if Plus

if (N = 0) then PC

PC + k + 1

None

1/2

BRGE

k

Branch if Greater or Equal, Signed

if (N

V= 0) then PC

PC + k + 1

None

1/2

BRLT

k

Branch if Less Than Zero, Signed

if (N

V= 1) then PC

PC + k + 1

None

1/2

BRHS

k

Branch if Half Carry Flag Set

if (H = 1) then PC

PC + k + 1

None

1/2

BRHC

k

Branch if Half Carry Flag Cleared

if (H = 0) then PC

PC + k + 1

None

1/2

BRTS

k

Branch if T Flag Set

if (T = 1) then PC

PC + k + 1

None

1/2

BRTC

k

Branch if T Flag Cleared

if (T = 0) then PC

PC + k + 1

None

1/2

BRVS

k

Branch if Overflow Flag is Set

if (V = 1) then PC

PC + k + 1

None

1/2

BRVC

k

Branch if Overflow Flag is Cleared

if (V = 0) then PC

PC + k + 1

None

1/2

BRIE

k

Branch if Interrupt Enabled

if ( I = 1) then PC

PC + k + 1

None

1/2

BRID

k

Branch if Interrupt Disabled

if ( I = 0) then PC

PC + k + 1

None

1/2

BIT AND BIT-TEST INSTRUCTIONS

SBI

P,b

Set Bit in I/O Register

I/O(P,b)

1

None

2

CBI

P,b

Clear Bit in I/O Register

I/O(P,b)

0

None

2

LSL

Rd

Logical Shift Left

Rd(n+1)

Rd(n), Rd(0)

0

Z,C,N,V

1

LSR

Rd

Logical Shift Right

Rd(n)

Rd(n+1), Rd(7)

0

Z,C,N,V

1

ROL

Rd

Rotate Left Through Carry

Rd(0)

C,Rd(n+1)

Rd(n),C

Rd(7)

Z,C,N,V

1

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