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Freescale Semiconductor M68HC08AD, Справочное руководство

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M68HC08RG/AD

MOTOROLA

M68HC08 Family Reference Guide

13

SUB  #opr8i
SUB  opr8a
SUB  opr16a
SUB  oprx16,X
SUB  oprx8,X
SUB   ,X
SUB  oprx16,SP
SUB  oprx8,SP

Subtract A 

←

 (A) 

–

 (M)

 – –   

IMM
DIR
EXT
IX2
IX1
IX
SP2
SP1

A0
B0

C0
D0

E0

F0

9ED0
9EE0

ii
dd
hh ll
ee ff
ff

ee ff
ff

2
3
4
4
3
2
5
4

SWI

Software Interrupt

PC 

←

 (PC) + $0001

Push (PCL); SP 

←

 (SP) – $0001

Push (PCH); SP 

←

 (SP) – $0001

Push (X); SP 

←

 (SP) – $0001

Push (A); SP 

←

 (SP) – $0001

Push (CCR); SP 

←

 (SP) – $0001

I 

←

 1;

PCH 

←

 Interrupt Vector High Byte

PCL 

←

 Interrupt Vector Low Byte

–

–

1

–

–

–

INH

83

9

TAP

Transfer Accumulator to 
CCR

CCR 

←

 (A)

     

INH

84

2

TAX

Transfer Accumulator to 
X (Index Register Low)

X 

←

 (A)

–

–

–

–

–

–

INH

97

1

TPA

Transfer CCR to 
Accumulator

A 

←

 (CCR)

–

–

–

–

–

–

INH

85

1

TST  opr8a
TSTA
TSTX
TST  oprx8,X
TST  ,X
TST  oprx8,SP

Test for Negative or Zero

(M) – $00

(A) – $00
(X) – $00

(M) – $00
(M) – $00
(M) – $00

0

–

–

  –

DIR
INH
INH
IX1
IX
SP1

3D
4D
5D
6D
7D

9E6D

dd

ff

ff

3
1
1
3
2
4

TSX

Transfer SP to Index Reg.

H:X 

←

 (SP) + $0001

–

–

–

–

–

–

INH

95

2

TXA

Transfer X (Index Reg. 
Low) to Accumulator

A 

←

 (X)

–

–

–

–

–

–

INH

9F

1

TXS

Transfer Index Reg. to SP

SP 

←

 (H:X) – $0001

–

–

–

–

–

–

INH

94

2

WAIT

Enable Interrupts; Wait 
for Interrupt

I bit 

←

 0; Halt CPU

–

–

0

–

–

– INH

8F

1

Table 2. Instruction Set Summary (Sheet 8 of 8)

Source

Form

Operation

Description

Effect

on CCR

Ad

dress

M

ode

Opc

o

de

O

p

erand

Cycl

es

V H I N Z C

 

   

  

F

re

e

sc

a

le

 S

e

m

ic

o

n

d

u

c

to

r,

 I

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

 

Freescale Semiconductor, Inc.

For More Information On This Product,

   Go to: www.freescale.com

n

c

.

..

Содержание M68HC08AD

Страница 1: ...X 1 5 0 STACK POINTER SP 1 5 0 PROGRAM COUNTER PC 7 0 CONDITION CODE REGISTER CCR V 1 1 H I N Z C CARRY BORROW FLAG C TWO S COMPLEMENT OVERFLOW FLAG V ZERO FLAG Z HALF CARRY FLAG H NEGATIVE FLAG N IN...

Страница 2: ...e it is the user s responsibility to save and restore it prior to returning IRQINT PSHH Interrupt service routine PULH RTI Figure 3 H Register Storage CONDITION CODE REGISTER ACCUMULATOR INDEX REGISTE...

Страница 3: ...ith read gets Boolean AND Boolean OR Boolean exclusive OR Multiply Divide Concatenate Add Negate two s complement Sign extend CPU Registers A Accumulator CCR Condition code register H Index register h...

Страница 4: ...it 0 carry out of bit 7 Bit Status BEFORE Execution of an Instruction n 7 6 5 0 1 1 For 2 byte operations such as LDHX STHX and CPHX n 15 refers to bit 15 of the 2 byte word or bit 7 of the most signi...

Страница 5: ...o a 16 bit value The instruction treats this value as an address in the 64 Kbyte address space oprx8 Any label or expression that evaluates to an unsigned 8 bit value used for indexed addressing oprx1...

Страница 6: ...inter SP SP M M is sign extended to a 16 bit value IMM A7 ii 2 AIX opr8i Add Immediate Value Signed to Index Register H X H X H X M M is sign extended to a 16 bit value IMM AF ii 2 AND opr8i AND opr8a...

Страница 7: ...ch if IRQ pin 1 REL 2F rr 3 BIL rel Branch if IRQ Pin Low Branch if IRQ pin 0 REL 2E rr 3 BIT opr8i BIT opr8a BIT opr16a BIT oprx16 X BIT oprx8 X BIT X BIT oprx16 SP BIT oprx8 SP Bit Test A M CCR Upda...

Страница 8: ...rr 5 5 5 5 5 5 5 5 BSET n opr8a Set Bit n in Memory Mn 1 DIR b0 DIR b1 DIR b2 DIR b3 DIR b4 DIR b5 DIR b6 DIR b7 10 12 14 16 18 1A 1C 1E dd dd dd dd dd dd dd dd 4 4 4 4 4 4 4 4 BSR rel Branch to Subr...

Страница 9: ...CPX opr16a CPX oprx16 X CPX oprx8 X CPX X CPX oprx16 SP CPX oprx8 SP Compare X Index Register Low with Memory X M CCR Updated But Operands Not Changed IMM DIR EXT IX2 IX1 IX SP2 SP1 A3 B3 C3 D3 E3 F3...

Страница 10: ...ee ff ff 4 5 6 5 4 LDA opr8i LDA opr8a LDA opr16a LDA oprx16 X LDA oprx8 X LDA X LDA oprx16 SP LDA oprx8 SP Load Accumulator from Memory A M 0 IMM DIR EXT IX2 IX1 IX SP2 SP1 A6 B6 C6 D6 E6 F6 9ED6 9EE...

Страница 11: ...prx16 SP ORA oprx8 SP InclusiveOR Accumulator and Memory A A M 0 IMM DIR EXT IX2 IX1 IX SP2 SP1 AA BA CA DA EA FA 9EDA 9EEA ii dd hh ll ee ff ff ee ff ff 2 3 4 4 3 2 5 4 PSHA Push Accumulator onto Sta...

Страница 12: ...1 1 INH 99 1 SEI Set Interrupt Mask Bit I 1 1 INH 9B 2 STA opr8a STA opr16a STA oprx16 X STA oprx8 X STA X STA oprx16 SP STA oprx8 SP Store Accumulator in Memory M A 0 DIR EXT IX2 IX1 IX SP2 SP1 B7 C7...

Страница 13: ...to X Index Register Low X A INH 97 1 TPA Transfer CCR to Accumulator A CCR INH 85 1 TST opr8a TSTA TSTX TST oprx8 X TST X TST oprx8 SP Test for Negative or Zero M 00 A 00 X 00 M 00 M 00 M 00 0 DIR IN...

Страница 14: ...or 16 bit offset For one byte zero offset mode instructions IX X index register low contains the low byte of the EA of the operand The value of H index register high is 00 if none of the HC08 instruct...

Страница 15: ...y indexed to direct with post increment of H X IX D is a two byte addressing mode The operand addressed by H X is stored in the direct page location addressed by the byte following the opcode Memory t...

Страница 16: ...SL 2 IX1 5 LSL 3 SP1 3 LSL 1 IX 2 PULX 1 INH 1 CLC 1 INH 2 EOR 2 IMM 3 EOR 2 DIR 4 EOR 3 EXT 4 EOR 3 IX2 5 EOR 4 SP2 3 EOR 2 IX1 4 EOR 3 SP1 2 EOR 1 IX 9 5 BRCLR4 3 DIR 4 BCLR4 2 DIR 3 BHCS 2 REL 4 RO...

Страница 17: ...2A 4A J 6A j 0B VT 2B 4B K 6B k 0C FF 2C comma 4C L 6C l 0D CR return 2D dash 4D M 6D m 0E SO 2E period 4E N 6E n 0F SI 2F 4F O 6F o 10 DLE 30 0 50 P 70 p 11 DC1 31 1 51 Q 71 q 12 DC2 32 2 52 R 72 r...

Страница 18: ...3 0 4th Hex Digit 3rd Hex Digit 2nd Hex Digit 1st Hex Digit Hex Decimal Hex Decimal Hex Decimal Hex Decimal 0 0 0 0 0 0 0 0 1 4 096 1 256 1 16 1 1 2 8 192 2 512 2 32 2 2 3 12 288 3 768 3 48 3 3 4 16...

Страница 19: ...ber you are converting The corresponding hexadecimal digit is the most significant hexadecimal digit of the result Subtract the decimal number found from the original decimal number to get the remaini...

Страница 20: ...rent applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts Motorola does no...

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