How to use the instruction descriptions, Syntax – Texas Instruments TMS320C2XX User Manual

Page 165

Advertising
background image

How To Use the Instruction Descriptions

7-12

7.2

How To Use the Instruction Descriptions

Section 7.3 contains detailed information on the instruction set. The descrip-
tion for each instruction presents the following categories of information:

-

Syntax

-

Operands

-

Opcode

-

Execution

-

Status Bits

-

Description

-

Words

-

Cycles

-

Examples

7.2.1

Syntax

Each instruction begins with a list of the available assembler syntax expres-
sions and the addressing mode type(s) for each expression. For example, the
description for the ADD instruction begins with:

ADD

dma [ , shift ]

Direct addressing

ADD

dma, 16

Direct with left shift of 16

ADD

ind [ , shift

[ , AR

n] ]

Indirect addressing

ADD

ind, 16 [ , ARn]

Indirect with left shift of 16

ADD #

k

Short immediate addressing

ADD #

lk [ , shift ]

Long immediate addressing

These are the notations used in the syntax expressions:

italic
symbols

Italic symbols in an instruction syntax represent variables.
Example:

For the syntax:
ADD

dma

you may use a variety of values for

dma.

Samples with this syntax follow:

ADD DAT

ADD 15

boldface
characters

Boldface characters in an instruction syntax must be typed as
shown.
Example:

For the syntax:
ADD

dma, 16

you may use a variety of values for

dma, but the

word ADD and the number 16 should be typed
as shown. Samples with this syntax follow:

ADD 7h, 16

ADD X, 16

Advertising