Intel XENIX 286 Programmers Guide (86) - Tenox.tc

Programming Commands XENIX Programming
as - Invokes the XENIX assembler.
Syntax
as [options ] file.s
Description
as is the XENIX assembler. It reads and assembles 8086/286 assem bly language
instructions from the source file named file.s and creates either a linkable object file
named file.o or an executable program named a.out. The extension .s is recommended
but not required. If this extension is not given, as displays a warning and continues
processing.
These options are available:
-1
-nl num
Creates an assembly listing file called file.L. This file lists the source
instructions, the assembled (binary) code for each instruction, and any
assembly errors.
Sets the maximum length of external symbols to num. Names longer than
num are truncated before being copied to the external symbol table.
-g Directs the assembler to interpret undefined symbols as globally-defined
external symbols. If not given, undefined symbols cause an assembly error.
-Mm Creates a middle model object file suitable for linking with other middle
model object files. The resulting text segment is named FILE_TEXT, where
FILE is the file argument, but in uppercase letters.
-NT name
-NM name
-o objfile
B-18
Sets the text segment name of the assembled code to name. This option
overrides the default text segment.
Sets the module name of the assembled code to name. The option overrides
the default module name.
Copies the assembled instructions to the file named objfile. This file is
executable only if no errors occur during the assembly. This option overrides
the default object name.