divert(-1)

dnl  m4 macros for Alpha assembler.

dnl  Copyright 2003, 2004 Free Software Foundation, Inc.

dnl  This file is part of the GNU MP Library.

dnl

dnl  The GNU MP Library is free software; you can redistribute it and/or modify

dnl  it under the terms of either:

dnl

dnl    * the GNU Lesser General Public License as published by the Free

dnl      Software Foundation; either version 3 of the License, or (at your

dnl      option) any later version.

dnl

dnl  or

dnl

dnl    * the GNU General Public License as published by the Free Software

dnl      Foundation; either version 2 of the License, or (at your option) any

dnl      later version.

dnl

dnl  or both in parallel, as here.

dnl

dnl  The GNU MP Library is distributed in the hope that it will be useful, but

dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

dnl  for more details.

dnl

dnl  You should have received copies of the GNU General Public License and the

dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,

dnl  see https://www.gnu.org/licenses/.

dnl  Usage: ASSERT([reg] [,code])

dnl

dnl  Require that the given reg is non-zero after executing the test code.

dnl  For example,

dnl

dnl         ASSERT(r8,

dnl         `       cmpult r16, r17, r8')

dnl

dnl  If the register argument is empty then nothing is tested, the code is

dnl  just executed.  This can be used for setups required by later ASSERTs.

dnl  If the code argument is omitted then the register is just tested, with

dnl  no special setup code.

define(ASSERT,

m4_assert_numargs_range(1,2)

m4_assert_defined(`WANT_ASSERT')

`ifelse(WANT_ASSERT,1,

`ifelse(`$2',,,`$2')

ifelse(`$1',,,

`	bne	$1, L(ASSERTok`'ASSERT_label_counter)

	.long	0	C halt

L(ASSERTok`'ASSERT_label_counter):

define(`ASSERT_label_counter',eval(ASSERT_label_counter+1))

')

')')

define(`ASSERT_label_counter',1)

dnl  Usage: bigend(`code')

dnl

dnl  Emit the given code only for a big-endian system, like Unicos.  This

dnl  can be used for instance for extra stuff needed by extwl.

define(bigend,

m4_assert_numargs(1)

`ifdef(`HAVE_LIMB_BIG_ENDIAN',`$1',

`ifdef(`HAVE_LIMB_LITTLE_ENDIAN',`',

`m4_error(`Cannot assemble, unknown limb endianness')')')')

dnl  Usage: bwx_available_p

dnl

dnl  Evaluate to 1 if the BWX byte memory instructions are available, or to

dnl  0 if not.

dnl

dnl  Listing the chips which do have BWX means anything we haven't looked at

dnl  will use safe non-BWX code.  The only targets without BWX currently are

dnl  plain alpha (ie. ev4) and alphaev5.

define(bwx_available_p,

m4_assert_numargs(-1)

`m4_ifdef_anyof_p(

	`HAVE_HOST_CPU_alphaev56',

	`HAVE_HOST_CPU_alphapca56',

	`HAVE_HOST_CPU_alphapca57',

	`HAVE_HOST_CPU_alphaev6',

	`HAVE_HOST_CPU_alphaev67',

	`HAVE_HOST_CPU_alphaev68',

	`HAVE_HOST_CPU_alphaev69',

	`HAVE_HOST_CPU_alphaev7',

	`HAVE_HOST_CPU_alphaev79')')

dnl  Usage: unop

dnl

dnl  The Cray Unicos assembler lacks unop, so give the equivalent ldq_u

dnl  explicitly.

define(unop,

m4_assert_numargs(-1)

`ldq_u	r31, 0(r30)')

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