HCS12 datasheet(105/452 Pages) FREESCALE

105 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

105

Operation:

(A) + (M)

⇒ A

Description:

Adds the content of memory location M to accumulator A and places the

result in A. This instruction affects the H status bit, so it is suitable for use in

BCD arithmetic operations. See DAA instruction for additional information.

ADDA

Add without Carry to A

ADDA

CCR Details:

HIN

––

∆

–

∆∆∆∆

H: A3

• M3 + M3 • R3 + R3 • A3

Set if there was a carry from bit 3; cleared otherwise

N: Set if MSB of result is set; cleared otherwise

Z: Set if result is $00; cleared otherwise

V: A7

• M7 • R7 + A7 • M7 • R7

Set if two’s complement overflow resulted from the operation;

cleared otherwise

C: A7

• M7 + M7 • R7 + R7 • A7

Set if there was a carry from the MSB of the result; cleared

otherwise

Source Form

Address

Mode

Object Code

Access Detail

HCS12

M68HC12

ADDA #opr8i

ADDA opr8a

ADDA opr16a

ADDA oprx0_xysp

ADDA oprx9,xysp

ADDA oprx16,xysp

ADDA [D,xysp]

ADDA [oprx16,xysp]

IMM

DIR

EXT

IDX

IDX1

IDX2

[D,IDX]

[IDX2]

8B ii

9B dd

BB hh ll

AB xb

AB xb ff

AB xb ee ff

AB xb

AB xb ee ff

rPf

rPO

rPf

rPO

frPP

fIfrPf

fIPrPf

rfP

rOP

rfP

rPO

frPP

fIfrfP

fIPrfP

HCS12 Datasheet(PDF) 105 Page - Freescale Semiconductor, Inc

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