HCS12 datasheet(103/452 Pages) FREESCALE

103 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

103

Operation:

(A) + (M) + C

⇒ A

Description:

Adds the content of accumulator A to the content of memory location M,

then adds the value of the C bit 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.

ADCA

Add with Carry to A

ADCA

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

ADCA #opr8i

ADCA opr8a

ADCA opr16a

ADCA oprx0_xysp

ADCA oprx9,xysp

ADCA oprx16,xysp

ADCA [D,xysp]

ADCA [oprx16,xysp]

IMM

DIR

EXT

IDX

IDX1

IDX2

[D,IDX]

[IDX2]

89 ii

99 dd

B9 hh ll

A9 xb

A9 xb ff

A9 xb ee ff

A9 xb

A9 xb ee ff

rPf

rPO

rPf

rPO

frPP

fIfrPf

fIPrPf

rfP

rOP

rfP

rPO

frPP

fIfrfP

fIPrfP

HCS12 Datasheet(PDF) 103 Page - Freescale Semiconductor, Inc

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