HP 3000 III Series Manual page 76

System/CPU Overview
CODE
PB
--.
Legal
Address.
(for Program
Transfers
P
----.
and User
References)
PL
-..
DATA
DL
DB
SM
S
z
INCREASING
ADDRESSES
D
----.
----.
Legal
Addre...
for
User
References
~
-----
Stack
Underflow
User
Stack
Area
Stack
Overflow
Figure 2-19.
Addressing and Stack Bounds
2-44