as(1) on Linux
The text c09f1d07c90b, as Debian 8 (Jessie) shipped it.
the portable GNU assembler.
Flags it lists
-
--32 -
--64 -
--Wnp -
--Wp -
--absolute-literals -
--alternate -
--compress-debug-sections -
--debug-prefix-map -
--defsym -
--divide -
--fatal-warnings -
--gdwarf-2 -
--gdwarf-sections -
--gen-debug -
--gstabs -
--gstabs+ -
--help -
--keep-locals -
--listing-cont-lines -
--listing-lhs-width -
--listing-lhs-width2 -
--listing-rhs-width -
--longcalls -
--m32rx -
--no-absolute-literals -
--no-longcalls -
--no-target-align -
--no-text-section-literals -
--no-trampolines -
--no-transform -
--no-warn -
--no-warn-explicit-parallel-conflicts -
--nocompress-debug-sections -
--reduce-memory-overheads -
--rename-section -
--size-check -
--statistics -
--strip-local-absolute -
--target-align -
--target-help -
--text-section-literals -
--trampolines -
--transform -
--version -
--warn -
--warn-explicit-parallel-conflicts -
--x32 -
-32addr -
-ACA -
-ACA_A -
-ACB -
-ACC -
-AKA -
-AKB -
-AKC -
-AMC -
-D -
-EB -
-EL -
-F -
-Fud -
-Fup -
-G -
-I -
-J -
-K -
-L -
-N -
-O -
-R -
-W -
-Wnud -
-Wnup -
-Wud -
-Wup -
-Z -
-a -
-a32 -
-a64 -
-ac -
-ad -
-ag -
-ah -
-al -
-am -
-an -
-as -
-b -
-be -
-f -
-forbid-undocumented-instructions -
-forbid-unportable-instructions -
-g -
-h-tick-hex -
-ignore-undocumented-instructions -
-ignore-unportable-instructions -
-k -
-l -
-le -
-m -
-m16c -
-m31 -
-m32 -
-m32c -
-m403 -
-m405 -
-m440 -
-m464 -
-m476 -
-m601 -
-m603 -
-m604 -
-m620 -
-m64 -
-m68000 -
-m68008 -
-m68010 -
-m68020 -
-m68030 -
-m68851 -
-m68881 -
-m68882 -
-m7400 -
-m7410 -
-m7450 -
-m7455 -
-m750cl -
-ma2 -
-mabi -
-madd-bnd-prefix -
-maltivec -
-many -
-mapcs-26 -
-mapcs-32 -
-mapcs-float -
-mapcs-reentrant -
-marc -
-march -
-mavxscalar -
-mbig -
-mbig-endian -
-mbig-obj -
-mbooke -
-mccs -
-mcell -
-mcom -
-mcpu -
-mdebug -
-mdsbt -
-me300 -
-me500 -
-me500mc -
-me500mc64 -
-me500x2 -
-me5500 -
-me6500 -
-memb -
-mepiphany -
-mepiphany16 -
-mesa -
-mevexlig -
-mevexrcig -
-mevexwig -
-mfdpic -
-mfloat-abi -
-mfpu -
-mhtm -
-mip2022 -
-mip2022ext -
-mlittle -
-mlittle-endian -
-mmnemonic -
-mnaked-reg -
-mno-68851 -
-mno-68881 -
-mno-68882 -
-mno-dsbt -
-mno-fdpic -
-mno-pic -
-mno-regnames -
-mno-solaris -
-mno-verbose-error -
-mnopic -
-momit-lock-prefix -
-mpic -
-mpid -
-mpower4 -
-mpower5 -
-mpower6 -
-mpower7 -
-mpower8 -
-mppc -
-mppc32 -
-mppc64 -
-mppc64bridge -
-mpwr -
-mpwr2 -
-mpwr4 -
-mpwr5 -
-mpwr5x -
-mpwr6 -
-mpwr7 -
-mpwr8 -
-mpwrx -
-mregnames -
-mrelocatable -
-mrelocatable-lib -
-msolaris -
-mspe -
-msse-check -
-msse2avx -
-msyntax -
-mthumb -
-mthumb-interwork -
-mtitan -
-mtune -
-mverbose-error -
-mvle -
-mvsx -
-mwarn-areg-zero -
-mzarch -
-n -
-no-mdebug -
-no-relax -
-nops -
-noreplace -
-o -
-r800 -
-relax -
-relax-all -
-relax-section -
-replace -
-v -
-version -
-w -
-warn-undocumented-instructions -
-warn-unportable-instructions -
-x -
-z80