Module Definition File: Difference between revisions

Latest revision as of 18:35, 1 December 2025

The module definition file (.DEF) contains the attributes that can be included in the executable file.

Directives
		Parameters
CODE	Assigns characteristics to code segments	load option LOADONCALL PRELOAD execute-option EXECUTEREAD EXECUTEONLY privilege IOPL NOIOPL
DATA	Assigns characteristics to data segments
DESCRIPTION	Embeds text in executable file
EXETYPE	Specifies host operating system
EXPORTS	Names functions exported for dynamic linking by other programs
HEAPSIZE	Specifies initial size of local heap (C programs only)
IMPORTS	Names functions that will be dynamically linked at load time
LIBRARY	Builds dynlink library or device driver
NAME	Builds application program
OLD	Specifies ordinal compatibility with previous version of dynlink library
PROTMODE	Flags file as executable in protected mode only
REALMODE	Allows file to be executed in real mode
SEGMENTS	Assigns characteristics to selected segments
STACKSIZE	Specifies size of stack used by primary thread
STUB	Embeds MS-DOS-compatible program in new executable file	name of a DOS mode .exe file

@@ Line 3: / Line 3: @@
 {|class="wikitable"
 |+Directives
+! || ||Parameters
 |-
 !CODE
 |Assigns characteristics to code segments
+|load option
+:LOADONCALL
+:PRELOAD
+execute-option
+:EXECUTEREAD
+:EXECUTEONLY
+privilege
+:IOPL
+:NOIOPL
 |-
 !DATA
@@ Line 45: / Line 55: @@
 !STACKSIZE
 |Specifies size of stack used by primary thread
+|
 |-
 !STUB
 |Embeds MS-DOS-compatible program in new executable file
+|name of a DOS mode .exe file
 |}
 [[Category:File formats]]