ASX(CP) XENIX System V ASX(CP)
Name
asx - XENIX 8086/186/286/386 assembler.
Syntax
asx [ options ] source-file
Description
asx assembles 8086/186/286/386 assembly language source
files and produces linkable object modules. Note that
masm(CP) is the supported assembler and should be used
instead of asx for new development.
asx accepts one source-file. The source file name must have
the ``.s'' extension. The resulting file containing the
object module is given the same base name as the source,
with the ``.o'' extension replacing the ``.s'' extension.
There are the following options:
-a Assembled segments are output in alphabetic order,
instead of in order of occurrence in the source file.
-d Creates program listings for both passes of the
assembler. This listing can be used to resolve phase
errors between assembler passes. The -d option is
ignored if the -l option is not in effect.
-l Produces a listing file. The listing file has the same
base name as the source file, but has the ``.lst''
extension.
-Mu Disables case sensitivity for all names and symbols.
This option makes upper and lowercase letters in names
and symbols indistinguishable to the assembler. This
option also causes the symbols defined by the EXTRN and
PUBLIC directives to be output in uppercase regardless
of their original spelling.
-Mx Disables case sensitivity for all names and symbols
except those names defined by the EXTRN and PUBLIC
directives. This option is similar to the -Mu option
except that public and external names copied to the
object file retain their original spelling.
-n Suppresses the generation of the symbol table in the
program listing. This option is ignored if the -l
option is not in effect.
-o filename
Directs the generated object module to the file named
filename. No default extension is assumed.
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ASX(CP) XENIX System V ASX(CP)-O Causes values in the program listing to be displayed in
octal. The default radix is hexadecimal.
-r Causes generation of actual 8087/287 instructions
instead of software interrupts for the floating point
emulation package. Object modules created using this
option can only be executed on machines with an 8087 or
287.
-X Directs the assembler to list any conditional block
whose IF condition resolves to false. This option can
be overridden in the source file by using the .TFCOND
directive. This option is ignored if the -l option is
not in effect.
By default, asx recognizes 8086 instruction mnemonics only.
To assemble 186, 286, 386, 8087, or 287 instructions, the
corresponding .186, .286c, .286p, .386, .8087, or .287
directive must be given in the source file.
Files
/bin/asx
See Also
ld(CP)
Note
Unless the -r is given, asx assumes all 8087/287
instructions are to be carried out using floating point
emulation. The -r option should only be used on machines
with an 8087 or 287 coprocessor.
asx (CP) is also known as the Ritchie assembler. It was used
before the introduction of the cmerge C compiler and is not
compatible with cc (CP). Use ld(CP) to link object modules
created with asx.
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