ID Number: Q24955
3.x 4.x 5.00 5.10 6.00 6.00a 6.00b
MS-DOS
Summary:
If a starting address is not explicitly specified, then the starting
address will be one of the following:
1) The beginning of the code if the simplified segment directives
.model and .code are used (MASM 5.0 and later).
-or-
2) The first segment loaded into memory if full segment directives
are used. This will result in the execution of the data segment
if it is the first segment loaded and the results will be
unpredictable.
Versions of the linker prior to version 5.05 do not warn if a starting
address is not specified. Link version 5.13 (shipped with MASM 6.0)
issues the following warning:
L4038: program has no starting address
More Information:
The END directive is used to mark the end of the source file and can
optionally be used to set the starting address which will be loaded
into CS:IP when the program executes. For example
END start
would specify that execution should begin at the label named start.