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1.1.1.3 root 1: This is the beta-test version of the GNU assembler. (Probably 1.1.1.5 ! root 2: around Version 1.35, but check version.c which gets updated more ! 3: often than this readme.) 1.1.1.3 root 4: 5: The assembler has been modified to support a feature that is 6: potentially useful when assembling compiler output, but which may 7: confuse assembly language programmers. If assembler encounters a 8: .word pseudo-op of the form symbol1-symbol2 (the difference of two 9: symbols), and the difference of those two symbols will not fit in 16 10: bits, the assembler will create a branch around a long jump to 11: symbol1, and insert this into the output directly before the next 12: label: The .word will (instead of containing garbage, or giving an 13: error message) contain (the address of the long jump)-symbol2. This 14: allows the assembler to assemble jump tables that jump to locations 15: very far away into code that works properly. If the next label is 16: more than 32K away from the .word, you lose (silently) RMS claims 17: this will never happen. If the -k option is given, you will get a 18: warning message when this happens. 1.1 root 19: 1.1.1.3 root 20: These files are currently set up to allow you to compile all of the 21: versions of the assembler (68020, VAX, ns32k, and i386) on the same 22: machine. To compile the 68020 version, type 'make a68'. To compile 23: the VAX version, type 'make avax'. To compile the ns32k version, 24: type 'make a32k'. To compile the Intel 80386 version, type 'make 25: a386'. The Makefile contains instructions on how to make one of the 26: assemblers compile as the default. 27: 28: Before you can compile the 68020 version of the assembler, you must 29: make m68k.h be a link to m-sun3.h , m-hpux.h or m-generic.h . If 30: you are on a SUN-3 (or other machine that uses a magic number of 31: (2 << 16) | OMAGIC type 'ln -s m-sun3.h m68k.h' else if you are on a 32: machine running HP-UX, type 'ln m-hpux.h m689k.h' else type 33: 'ln -s m-generic.h m68k.h' If your machine does not support symbolic 34: links, omit the '-s'. 1.1 root 35: 1.1.1.4 root 36: See the instructions in the Makefile for compiling gas for the Sequent 37: Symmetry (dynix 3.0.12 + others?) or for the HP 9000/300 38: 1.1.1.3 root 39: If your machine does not have both varargs.h and vfprintf(), but does have 1.1 root 40: _doprnt() add -DNO_VARARGS to the CFLAGS line in the makefile. If your 1.1.1.3 root 41: machine has neither vfprintf() or _doprnt(), you will have to change 42: messages.c in order to get readable error messages from the assembler. 43: 44: 45: REPORTING BUGS IN GAS 46: 1.1.1.5 ! root 47: Bugs in gas should be reported to [email protected] If you can't ! 48: get through to prep, try [email protected] or [email protected] 1.1.1.4 root 49: 1.1.1.3 root 50: If you report a bug in GAS, please remember to include: 51: 52: A description of exactly what went wrong. 53: 54: The type of machine GAS was running on (VAX, 68020, etc), 55: 56: The Operating System GAS was running under. 57: 58: The options given to GAS. 59: 60: The actual input file that caused the problem. 61: 62: It is silly to report a bug in GAS without including an input file for 63: GAS. Don't ask us to generate the file just because you made it from 64: files you think we have access to. 65: 66: 1. You might be mistaken. 67: 2. It might take us a lot of time to install things to regenerate that file. 68: 3. We might get a different file from the one you got, and might not see any 69: bug. 70: 71: To save us these delays and uncertainties, always send the input file 72: for the program that failed. 73: 74: If the input file is very large, and you are on the internet, you may 75: want to make it avaliable for anonymous FTP instead of mailing it. If you 1.1.1.4 root 76: do, include instructions for FTP'ing it in your bug report. 1.1.1.5 ! root 77: ! 78: ------------------------------ README.APOLLO --------------------------------- ! 79: ! 80: The changes required to get the GNU C compiler running on ! 81: Apollo 68K platforms are available via anonymous ftp from ! 82: labrea.stanford.edu (36.8.0.47) in the form of a compressed ! 83: tar file named "/pub/gnu/apollo-gcc-1.37.tar.Z". ! 84: The size of the file is 84145 bytes. ! 85: ! 86: To build GCC for the Apollo you'll need the virgin FSF ! 87: distributions of bison-1.03, gas-1.34, and gcc-1.37. They ! 88: are also on labrea.stanford.edu as well as prep.ai.mit.edu. ! 89: My changes are to enable gas to produce Apollo COFF object ! 90: files and allow gcc to parse some of the syntax extensions ! 91: which appear in Apollo C header files. Note that the ! 92: COFF encapsulation technique cannot be used on the Apollo. ! 93: ! 94: The tar file should be unpacked in the directory containing ! 95: the gas-1.34 and gcc-1.37 directories; a few files will be overlaid, ! 96: and an APOLLO-GCC-README file will appear in the top directory. ! 97: This file contains detailed instructions on how to proceed. ! 98: ! 99: These changes will only work for SR10.1 or later systems, using ! 100: the 6.6 or later version of the Apollo C compiler. ! 101: ! 102: If you do not have ftp access, I can mail you the changes in the ! 103: form of diffs; they are approximately 40K in length. If you request ! 104: them, be sure to give me a voice phone number so I can contact you ! 105: in case I can't send you mail; I've had several requests in the ! 106: past from people I can't contact. ! 107: ! 108: By the way, I'm working on getting the GNU C++ compiler running; ! 109: there are a couple problems to solve. I hope to be able to announce ! 110: the Apollo version shortly after the 1.37 version is released. ! 111: ! 112: John Vasta Hewlett-Packard Apollo Systems Division ! 113: [email protected] M.S. CHA-01-LT ! 114: (508) 256-6600 x6362 300 Apollo Drive, Chelmsford, MA 01824 ! 115: UUCP: {decwrl!decvax, mit-eddie, attunix}!apollo!vasta ! 116: ! 117: ------------------------------------ ! 118: ! 119: You might refer others who are interested in a similar thing. ! 120: ! 121: Kevin Buchs [email protected] ! 122: ! 123: ! 124: ------------------------------ README.COFF ----------------------------------- ! 125: ! 126: If you have a COFF system, you may wish to aquire ! 127: ! 128: UUCP: osu-cis!~/gnu/coff/gnu-coff.tar.Z ! 129: or ! 130: FTP: tut.cis.ohio-state.edu:/pub/gnu/coff/gnu-coff.tar.Z ! 131: ! 132: These contain patches for gas that will make it produce COFF output. ! 133: I have never seen these patches, so I don't know how well they work.
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