Specifications

17 January 1997 – Subject to Change
xiii
•
Binary Multiples
The abbreviations K, M, and G (kilo, mega, and giga) represent binary multiples
and have the following values.
For example:
Addresses
Unless otherwise noted, all addresses and offsets are hexadecimal.
Bit Notation
Multiple-bit fields can include contiguous and noncontiguous bits contained in angle
brackets (<>). Multiple contiguous bits are indicated by a pair of numbers separated
by a colon (:). For example, <9:7,5,2:0> specifies bits 9,8,7,5,2,1, and 0. Similarly,
single bits are frequently indicated with angle brackets. For example, <27> specifies
bit 27.
Caution
Cautions indicate potential damage to equipment, software, or data.
Data Field Size
The term INT
nn
, where
nn
is one of 2, 4, 8, 16, 32, or 64, refers to a data field of
nn
contiguous NATURALLY ALIGNED bytes. For example, INT4 refers to a
NATURALLY ALIGNED longword.
Bit/Field Abbreviation Description
RO (read only) Bits and fields specified as RO can be read but not written.
RW (read/write) Bits and fields specified as RW can be read and written.
WO (write only) Bits and fields specified as WO can be written but not read.
K
=2
10
(1024)
M
=2
20
(1,048,576)
G
=2
30
(1,073,741,824)
2KB = 2 kilobytes
=2
×
2
10
bytes
4MB = 4 megabytes
=4
×
2
20
bytes
8GB = 8 gigabytes
=8
×
2
30
bytes