7 immediate mode – Texas Instruments MSP430x4xx User Manual

Page 50

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Addressing Modes

3-16

RISC 16-Bit CPU

3.3.7

Immediate Mode

The immediate mode is described in Table 3−10.

Table 3−10.Immediate Mode Description

Assembler Code

Content of ROM

MOV #45h,TONI

MOV @PC+,X(PC)

45

X = TONI − PC

Length:

Two or three words
It is one word less if a constant of CG1 or CG2 can be used.

Operation:

Move the immediate constant 45h, which is contained in the
word following the instruction, to destination address TONI.
When fetching the source, the program counter points to the
word following the instruction and moves the contents to the
destination.

Comment:

Valid only for a source operand.

Example:

MOV #45h,TONI

01192h

Address
Space

00045h

040B0h

PC

0FF16h

0FF14h

0FF12h

0xxxxh

01234h

0xxxxh

0FF16h

+01192h

010A8h

Register

Before:

01192h

Address
Space

00045h

040B0h

PC

0FF16h

0FF14h

0FF12h

0xxxxh

010AAh

010A8h

010A6h

0xxxxh

Register

After:

0xxxxh

0FF18h

010AAh

010A8h

010A6h

00045h

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