Compaq 21264 User Manual
Page 47

Alpha 21264/EV67 Hardware Reference Manual
Internal Architecture
2–19
Instruction Issue Rules
E L U U
L L U U
U E L E
U L L U
E U E E
L U L U
U E L L
U U L L
E U E L
L U U L
U E L U
U L L U
E U E U
L U L U
U E U E
U L U L
E U L E
L U L U
U E U L
U L U L
E U L L
U U L L
U E U U
U L U U
E U L U
L U L U
U L E E
U L U L
E U U E
L U U L
U L E L
U L U L
E U U L
L U U L
U L E U
U L L U
E U U U
L U U U
U L L E
U L L U
L E E E
L U L U
U L L L
U L LL
L E E L
L U U L
U L L U
U L L U
L E E U
L U L U
U L U E
U L U L
L E L E
L U L U
U L U L
U L U L
L E L L
L U L L
U L U U
U L U U
L E L U
L U L U
U U E E
U U L L
L E U E
L U U L
U U E L
U U L L
L E U L
L U U L
U U E U
U U L U
L E U U
L L U U
U U L E
U U L L
L L E E
L L U U
U U L L
U U L L
L L E L
L L U L
U U L U
U U L U
L L E U
L L U U
U U U E
U U U L
L L L E
L L L U
U U U L
U U U L
—
—
U U U U
U U U U
Table 2–3 Instruction Group Definitions and Pipeline Unit (Continued)
Instruction Class
3 2 1 0
Slotting
3 2 1 0
Instruction Class
3 2 1 0
Slotting
3 2 1 0