Download Print this page

Exercise - RCA Spectra 70 Training Manual

System
Hide thumbs

Advertisement

Examples:
1.
Convert (1024)16 to Decimal
1 x 16 3 + 0 x 16 2 + 2 x 16 1 + 4 x 16 0
4096
+
o
+
32
+
4
=
(4132)10
2.
Convert (3AFj16 to Decimal
3 x 16 2 + 10 x 16 1 + 15 x 16 0
3 x 256 + 10 x 16 + 15 x 1
768
+
160
+
15
=
(943)10
The first example shows the hexadecimal address
(I024h6 which has a decimal value of (4132)10. The
actual machine (binary) address is:
0001000000100100
Each hexadecimal character can be represented by
four bits. Therefore, hexadecimal is converted to
binary by replacing each hexadecimal character with
its binary value.
(0001000000100100)2
=
4096 + 32 + 4 (4132)10
The second example shows that the hexadecimal ad-
dress 3AF has a decimal value of 943.
Exercise:
1.
A byte consists of _ _ information bits and
a ___ bit, and is the ___ addressable unit in
the 70/25 HSM.
5
2.
An effective HSM address is the absolute sum
of a
and a _ _ _ _
3.
Base address values are stored in
. The
_ _ _ and! or
fields of an instruction
specify which base address will be used to com-
pute an effective address.
4.
The decimal value of a displacement may not
exceed _ _ _ _
5.
Convert following
hexadecimal numbers
to
binary:
a.
A4E8(16)
b.
E82C(16)
c.
3D71(16)
6.
Convert following hexadecimal
numbers
to
decimal:
a.
B5F9(16)
b.
F93D(16)
7.
Convert following binary numbers to hexa-
decimal:
a.
1100011000001010(2)
b.
0000101001001110(2)
c.
0010110001100000(2)
8.
Convert following decimal numbers to hexa-
decimal:
a.
55067(10)
b.
7007(10)

Advertisement

loading

  Also See for RCA Spectra 70

  Related Manuals for RCA Spectra 70

This manual is also suitable for:

Spectra 70/25