HCS12 datasheet(58/452 Pages) FREESCALE

58 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

Table 5-2 is a summary of transfer and exchange instructions.

5.5 Move Instructions

Move instructions move (copy) data bytes or words from a source

(M1 or M : M +11) to a destination (M2 or M : M +12) in memory. Six

combinations of immediate, extended, and indexed addressing are allowed

to specify source and destination addresses (IMM

⇒ EXT,

IMM

⇒ IDX, EXT ⇒ EXT, EXT ⇒ IDX, IDX ⇒ EXT, IDX ⇒ IDX). Addressing

mode combinations with immediate for the destination would not be useful.

Table 5-3 shows byte and word move instructions.

Table 5-2. Transfer and Exchange Instructions

Mnemonic

Function

Operation

Transfer Instructions

TAB

Transfer A to B

(A)

⇒ B

TAP

Transfer A to CCR

(A)

⇒ CCR

TBA

Transfer B to A

(B)

⇒ A

TFR

Transfer register

to register

(A, B, CCR, D, X, Y, or SP)

⇒

A, B, CCR, D, X, Y, or SP

TPA

Transfer CCR to A

(CCR)

⇒ A

TSX

Transfer SP to X

(SP)

⇒ X

TSY

Transfer SP to Y

(SP)

⇒ Y

TXS

Transfer X to SP

(X)

⇒ SP

TYS

Transfer Y to SP

(Y)

⇒ SP

Exchange Instructions

EXG

Exchange register

to register

(A, B, CCR, D, X, Y, or SP)

⇔

(A, B, CCR, D, X, Y, or SP)

XGDX

Exchange D with X

(D)

⇔ (X)

XGDY

Exchange D with Y

(D)

⇔ (Y)

Sign Extension Instruction

SEX

Sign extend

8-Bit operand

Sign-extended (A, B, or CCR)

⇒

D, X, Y, or SP

Table 5-3. Move Instructions

Mnemonic

Function

Operation

MOVB

Move byte (8-bit)

)

⇒ M

MOVW

Move word (16-bit)

: M + 1

)

⇒ M : M + 12

HCS12 Datasheet(PDF) 58 Page - Freescale Semiconductor, Inc

HCS12 Datasheet(HTML) 58 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL