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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S')
-rw-r--r--REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S77
1 files changed, 77 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S b/REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S
new file mode 100644
index 0000000000..c798241b45
--- /dev/null
+++ b/REORG.TODO/sysdeps/hppa/hppa1.1/udiv_qrnnd.S
@@ -0,0 +1,77 @@
+;! HP-PA  __udiv_qrnnd division support, used from longlong.h.
+;! This version runs fast on PA 7000 and later.
+
+;! Copyright (C) 1993-2017 Free Software Foundation, Inc.
+
+;! This file is part of the GNU MP Library.
+
+;! The GNU MP Library is free software; you can redistribute it and/or modify
+;! it under the terms of the GNU Lesser General Public License as published by
+;! the Free Software Foundation; either version 2.1 of the License, or (at your
+;! option) any later version.
+
+;! The GNU MP Library is distributed in the hope that it will be useful, but
+;! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+;! or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+;! License for more details.
+
+;! You should have received a copy of the GNU Lesser General Public License
+;! along with the GNU MP Library.  If not, see
+;! <http://www.gnu.org/licenses/>.
+
+
+;! INPUT PARAMETERS
+;! rem_ptr	gr26
+;! n1		gr25
+;! n0		gr24
+;! d		gr23
+
+	.text
+L$0000:
+	.word		0x43f00000
+	.word		0x0
+	.export		__udiv_qrnnd
+__udiv_qrnnd:
+	.proc
+	.callinfo	frame=64,no_calls
+	.entry
+	ldo		64(%r30),%r30
+
+	stws		%r25,-16(%r30)	;! n_hi
+	stws		%r24,-12(%r30)	;! n_lo
+	b,l		L$0,%r1
+	ldo		L$0000-L$0(%r1),%r1
+L$0:
+	fldds		-16(%r30),%fr5
+	stws		%r23,-12(%r30)
+	comib,<=	0,%r25,L$1
+	fcnvxf,dbl,dbl	%fr5,%fr5
+	fldds		0(%r1),%fr4
+	fadd,dbl	%fr4,%fr5,%fr5
+L$1:
+	fcpy,sgl	%fr0,%fr6L
+	fldws		-12(%r30),%fr6R
+	fcnvxf,dbl,dbl	%fr6,%fr4
+
+	fdiv,dbl	%fr5,%fr4,%fr5
+
+	fcnvfx,dbl,dbl	%fr5,%fr4
+	fstws		%fr4R,-16(%r30)
+	xmpyu		%fr4R,%fr6R,%fr6
+	ldws		-16(%r30),%r28
+	fstds		%fr6,-16(%r30)
+	ldws		-12(%r30),%r21
+	ldws		-16(%r30),%r20
+	sub		%r24,%r21,%r22
+	subb		%r25,%r20,%r1
+	comib,=		0,%r1,L$2
+	ldo		-64(%r30),%r30
+
+	add		%r22,%r23,%r22
+	ldo		-1(%r28),%r28
+L$2:
+	bv		0(%r2)
+	stws		%r22,0(%r26)
+
+	.exit
+	.procend