Datasheet

7778h
Address
Space
3456h
50F2h
PC
21038h
21036h
21034h
Before:
Address
Space
After:
PC
0001h
2345h
7777Ah
77778h
0003h
579Bh
7777Ah
77778h
23456h
+12345h
3579Bh
src
dst
Sum
1907h
21032h
xxxxh
2103Ah
7778h
3456h
50F2h
21038h
21036h
21034h
1907h
21032h
xxxxh
2103Ah
xxxxh
Address
Space
0778h
3456h
PC
2103Ah
21038h
21036h
Before:
Address
Space
After:
50B2h
21034h
xxxxh
0778h
3456h
PC2103Ah
21038h
21036h
50B2h
21034h
xxxxh
2345h
0077Ah
00778h
xxxxh
579Bh
0077Ah
00778h
3456h
+2345h
579Bh
src
dst
Sum
www.ti.com Addressing Modes
4.4.7.2 MSP430X Instructions With Immediate Mode
If an MSP430X instruction is used with Immediate addressing mode, the constant is a 20-bit value. The 4
MSBs of the constant are stored in the extension word, and the 16 LSBs of the constant are stored in the
word following the instruction.
Length: Three or four words. One word less if a constant of the constant generator can be
used for the immediate operand.
Operation: The 20-bit immediate source operand is used together with the 20-bit destination
operand.
Comment: Valid only for the source operand
ADDX.A #23456h,&TONI ;
Example:
This instruction adds the 20-bit immediate operand 23456h to the data in the
destination address TONI.
Source: 20-bit immediate value 23456h
Destination: Two words beginning with address TONI
141
SLAU144J–December 2004–Revised July 2013 CPUX
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