Example:
XCHB @R1, R0
Instruction bit pattern : 1000 1010 0001 0000
R0
0 0 0 0 0 0 7 8
R1
8 0 0 0 0 0 0 2
Memory
x x
80000001
80000002
F D
x x
80000003
Before execution
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
R0
0 0 0 0 0 0 F D
R1
8 0 0 0 0 0 0 2
80000001
80000002
80000003
Memory
x x
7 8
x x
After execution
259