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Simplify assembly and disassembly of extended mnemonics with operands with constant ORed bits: Their instruction template already contains the respective constant operand bits, as they are significant to distinguish the extended from their base mnemonic. Operands are ORed into the instruction template. Therefore it is not necessary to OR the constant bits into the operand value during assembly in s390_insert_operand. Additionally the constant operand bits from the instruction template can be used to mask them from the operand value during disassembly in s390_print_insn_with_opcode. For now do so for non-length unsigned integer operands only. The separate instruction formats need to be retained, as their masks differ, which is relevant during disassembly to distinguish the base and extended mnemonics from each other. This affects the following extended mnemonics: - vfaebs, vfaehs, vfaefs - vfaezb, vfaezh, vfaezf - vfaezbs, vfaezhs, vfaezfs - vstrcbs, vstrchs, vstrcfs - vstrczb, vstrczh, vstrczf - vstrczbs, vstrczhs, vstrczfs - wcefb, wcdgb - wcelfb, wcdlgb - wcfeb, wcgdb - wclfeb, wclgdb - wfisb, wfidb, wfixb - wledb, wflrd, wflrx include/ * opcode/s390.h (S390_OPERAND_OR1, S390_OPERAND_OR2, S390_OPERAND_OR8): Remove. opcodes/ * s390-opc.c (U4_OR1_24, U4_OR2_24, U4_OR8_28): Remove. (INSTR_VRR_VVV0U1, INSTR_VRR_VVV0U2, INSTR_VRR_VVV0U3): Define as INSTR_VRR_VVV0U0 while retaining respective insn fmt mask. (INSTR_VRR_VV0UU8): Define as INSTR_VRR_VV0UU while retaining respective insn fmt mask. (INSTR_VRR_VVVU0VB1, INSTR_VRR_VVVU0VB2, INSTR_VRR_VVVU0VB3): Define as INSTR_VRR_VVVU0VB while retaining respective insn fmt mask. * s390-dis.c (s390_print_insn_with_opcode): Mask constant operand bits set in insn template of non-length unsigned integer operands. gas/ * config/tc-s390.c (s390_insert_operand): Do not OR constant operand value bits. Signed-off-by: Jens Remus <jremus@linux.ibm.com>
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.