AS(I) 1/15/73 AS(I)
NAME
as - assembler
SYNOPSIS
as [ - ] name ...
DESCRIPTION
As assembles the concatenation of the named files. If the
optional first argument - is used, all undefined symbols in
the assembly are treated as global.
The output of the assembly is left on the file a.out. It is
executable if no errors occurred during the assembly, and if
there were no unresolved external references.
FILES
/lib/as2 pass 2 of the assembler
/tmp/atm[1-3]? temporary
a.out object
SEE ALSO
ld (I), nm (I), db (I), a.out (V), `UNIX Assembler Manual'.
DIAGNOSTICS
When an input file cannot be read, its name followed by a
question mark is typed and assembly ceases. When syntactic
or semantic errors occur, a single-character diagnostic is
typed out together with the line number and the file name in
which it occurred. Errors in pass 1 cause cancellation of
pass 2. The possible errors are:
) Parentheses error
] Parentheses error
< String not terminated properly
* Indirection used illegally
. Illegal assignment to `.'
A Error in address
B Branch instruction is odd or too remote
E Error in expression
F Error in local (`f' or `b') type symbol
G Garbage (unknown) character
I End of file inside an if
M Multiply defined symbol as label
O Word quantity assembled at odd address
P `.' different in pass 1 and 2
R Relocation error
U Undefined symbol
X Syntax error
BUGS
Symbol table overflow is not checked. x errors can cause
incorrect line numbers in following diagnostics.