99 lines
2.9 KiB
Plaintext
99 lines
2.9 KiB
Plaintext
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divert(-1)
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dnl m4 macros for Alpha assembler.
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dnl Copyright 2003, 2004 Free Software Foundation, Inc.
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dnl
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dnl This file is part of the GNU MP Library.
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dnl
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dnl The GNU MP Library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public License as
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dnl published by the Free Software Foundation; either version 2.1 of the
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dnl License, or (at your option) any later version.
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dnl
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dnl The GNU MP Library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with the GNU MP Library; see the file COPYING.LIB. If
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dnl not, write to the Free Software Foundation, Inc., 51 Franklin Street,
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dnl Fifth Floor, Boston, MA 02110-1301, USA.
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dnl Usage: ASSERT([reg] [,code])
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dnl
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dnl Require that the given reg is non-zero after executing the test code.
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dnl For example,
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dnl
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dnl ASSERT(r8,
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dnl ` cmpult r16, r17, r8')
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dnl
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dnl If the register argument is empty then nothing is tested, the code is
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dnl just executed. This can be used for setups required by later ASSERTs.
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dnl If the code argument is omitted then the register is just tested, with
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dnl no special setup code.
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define(ASSERT,
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m4_assert_numargs_range(1,2)
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m4_assert_defined(`WANT_ASSERT')
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`ifelse(WANT_ASSERT,1,
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`ifelse(`$2',,,`$2')
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ifelse(`$1',,,
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` bne $1, L(ASSERTok`'ASSERT_label_counter)
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.long 0 C halt
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L(ASSERTok`'ASSERT_label_counter):
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define(`ASSERT_label_counter',eval(ASSERT_label_counter+1))
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')
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')')
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define(`ASSERT_label_counter',1)
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dnl Usage: bigend(`code')
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dnl
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dnl Emit the given code only for a big-endian system, like Unicos. This
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dnl can be used for instance for extra stuff needed by extwl.
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define(bigend,
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m4_assert_numargs(1)
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`ifdef(`HAVE_LIMB_BIG_ENDIAN',`$1',
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`ifdef(`HAVE_LIMB_LITTLE_ENDIAN',`',
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`m4_error(`Cannot assemble, unknown limb endianness')')')')
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dnl Usage: bwx_available_p
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dnl
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dnl Evaluate to 1 if the BWX byte memory instructions are available, or to
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dnl 0 if not.
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dnl
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dnl Listing the chips which do have BWX means anything we haven't looked at
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dnl will use safe non-BWX code. The only targets without BWX currently are
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dnl plain alpha (ie. ev4) and alphaev5.
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define(bwx_available_p,
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m4_assert_numargs(-1)
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`m4_ifdef_anyof_p(
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`HAVE_HOST_CPU_alphaev56',
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`HAVE_HOST_CPU_alphapca56',
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`HAVE_HOST_CPU_alphapca57',
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`HAVE_HOST_CPU_alphaev6',
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`HAVE_HOST_CPU_alphaev67',
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`HAVE_HOST_CPU_alphaev68',
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`HAVE_HOST_CPU_alphaev69',
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`HAVE_HOST_CPU_alphaev7',
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`HAVE_HOST_CPU_alphaev79')')
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dnl Usage: unop
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dnl
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dnl The Cray Unicos assembler lacks unop, so give the equivalent ldq_u
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dnl explicitly.
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define(unop,
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m4_assert_numargs(-1)
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`ldq_u r31, 0(r30)')
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divert
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