The control block formatting conventions have been chosen to aid the user of the Kernel Debugger and Dump Formatter.

Each control block is presented in tabular form with 5 columns used as follows:

name

Field name, usually taken from the C header or MASM include file definition.
Off
Offset from the beginning of the structure. The offset is of the form x.y where x is the signed hexadecimal byte offset from the beginning of the structure and y is the bit offset from the high-order bit of the byte.
Leng
Hexadecimal length of the field.
Type
The field type, for the purposes of displaying storage using the D command. The following values are used:

S

Complex structure. Choose display command to best suit your needs.
D
Double word. Use DD to format the field correctly.
W
Word. Use DW to format the field correctly.
B
Byte. Use DB to format the field correctly.
A
ASCII byte string. Use DA to format the field correctly.
blank
A blank value appears when a field does not begin or end on a byte boundary. In this case format the field from the previous field for which a type value is given. Such bit fields are presented in an order assuming this instruction is followed. Attempts to display bit fields in other ways may lead to a great deal of confusion!
Description
field description taken usually from the header or include file.

A null row is used to indicate an overlay definition of the same control block.

Flag fields are separately formatted in tabular form.

Where a flag field represents a bit mask, the mask is given in hexadecimal and is assumed to indicated that corresponding bits are set to be in effect. Exceptions are specifically notes in the description.

When the flag field take numerical values then they will be shown in either hexadecimal (prefixed with 0x) or decimal depending on the C or MASM definitions.

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