dsp56800 Freescale Semiconductor, Inc, dsp56800 Datasheet - Page 101

• Manufacturer Part Number: dsp56800
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

4.2.4.1
This addressing mode requires one word of instruction extension, which contains the 16-bit absolute
address of the operand. No registers are used to form the address of the operand. Absolute address
instructions are used with the bit-manipulation and move instructions. This reference is classified as a
memory reference and a program reference. See Figure 4-12.
Freescale Semiconductor
Assembler syntax: X:xxxx
Additional instruction execution cycles: 1
Additional effective address program words: 1
Absolute Address (Extended Addressing): xxxx
$5079
X0
15
15
Before Execution
1
Absolute Address Example
X Memory
Figure 4-12. Special Addressing: Absolute Address
XXXX
2
3
4
0
0
Address Generation Unit
: MOVE X:$5079,X0
$5079
X0
15
15
1
After Execution
X Memory
$1234
2
3
4
0
0
Addressing Modes
AA0025
4-21