HP HP-28S - Selecting the Base; Entering Binary Integers

Specify a wordsize of 16 bits.
16 SHIS
Now if you key in a binary integer longer than 16 bits, only the 16
least significant bits are displayed.
Selecting the Base
The current base affects how binary integers are displayed on the
stack. The choices for the base are decimal, hexadecimal, octal, and
binary, with a default choice of decimal base.
Suppose you want hexadecimal base.
HEX' r:::L:-:-~ -ma--"--IIEII--mml--I!mI-"
The label for HEX now includes a small square, indicating that the
current base is HEX.
Entering Binary Integers
Enter the address 24FF
16
.
o 24FF I ENTER I
3:
2:
1: # 24FFh
IDDlma"lIEIImmll!mI
The lowercase "h" is a base marker, indicating that the current base is
HEX.
When you enter a number, you don't need to key in the base
marker unless the number is not in the current base.
Check how this binary integer is represented in other bases. You don't
need to change the binary integer, only the current mode.
13: Binary Arithmetic 139