MIPS64 support.

2025-12-24 17:51:17 +03:00 · 1997-06-21 02:06:13 +00:00
parent 6a37465853
commit d0c2d3b303
13 changed files with 1030 additions and 2 deletions
--- a/sysdeps/mips/mips64/rshift.S
+++ b/sysdeps/mips/mips64/rshift.S
@@ -0,0 +1,101 @@
+/* MIPS3 __mpn_rshift --
+ *
+ * Copyright (C) 1995 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 Library General Public License as published by
+ * the Free Software Foundation; either version 2 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 Library General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include <sysdep.h>
+
+/* INPUT PARAMETERS
+ * res_ptr	$4
+ * src_ptr	$5
+ * size		$6
+ * cnt		$7
+ */
+
+#ifdef PIC
+	.option pic2
+#endif
+	.text
+	.align	2
+	.globl	__mpn_rshift
+	.ent	__mpn_rshift
+__mpn_rshift:
+	.set	noreorder
+#ifdef PIC
+	.cpload t9
+#endif
+	.set	nomacro
+
+	ld	$10,0($5)	# load first limb
+	dsubu	$13,$0,$7
+	daddiu	$6,$6,-1
+	and	$9,$6,4-1	# number of limbs in first loop
+	beq	$9,$0,.L0	# if multiple of 4 limbs, skip first loop
+	 dsll	$2,$10,$13	# compute function result
+
+	dsubu	$6,$6,$9
+
+.Loop0:	ld	$3,8($5)
+	daddiu	$4,$4,8
+	daddiu	$5,$5,8
+	daddiu	$9,$9,-1
+	dsrl	$11,$10,$7
+	dsll	$12,$3,$13
+	move	$10,$3
+	or	$8,$11,$12
+	bne	$9,$0,.Loop0
+	 sd	$8,-8($4)
+
+.L0:	beq	$6,$0,.Lend
+	 nop
+
+.Loop:	ld	$3,8($5)
+	daddiu	$4,$4,32
+	daddiu	$6,$6,-4
+	dsrl	$11,$10,$7
+	dsll	$12,$3,$13
+
+	ld	$10,16($5)
+	dsrl	$14,$3,$7
+	or	$8,$11,$12
+	sd	$8,-32($4)
+	dsll	$9,$10,$13
+
+	ld	$3,24($5)
+	dsrl	$11,$10,$7
+	or	$8,$14,$9
+	sd	$8,-24($4)
+	dsll	$12,$3,$13
+
+	ld	$10,32($5)
+	dsrl	$14,$3,$7
+	or	$8,$11,$12
+	sd	$8,-16($4)
+	dsll	$9,$10,$13
+
+	daddiu	$5,$5,32
+	or	$8,$14,$9
+	bgtz	$6,.Loop
+	 sd	$8,-8($4)
+
+.Lend:	dsrl	$8,$10,$7
+	j	$31
+	sd	$8,0($4)
+	.end	__mpn_rshift