[OpenBIOS] r62 - openbios-devel/libgcc
svn@openbios.org
svn at openbios.org
Sun Jun 11 12:50:32 CEST 2006
Author: stepan
Date: 2006-06-11 12:50:31 +0200 (Sun, 11 Jun 2006)
New Revision: 62
Added:
openbios-devel/libgcc/__divti3.c
openbios-devel/libgcc/__udivmodti4.c
openbios-devel/libgcc/__udivti3.c
openbios-devel/libgcc/__umodti3.c
openbios-devel/libgcc/multi3.c
Modified:
openbios-devel/libgcc/build.xml
Log:
add 128bit functions.
Added: openbios-devel/libgcc/__divti3.c
===================================================================
--- openbios-devel/libgcc/__divti3.c (rev 0)
+++ openbios-devel/libgcc/__divti3.c 2006-06-11 10:50:31 UTC (rev 62)
@@ -0,0 +1,29 @@
+/*
+ * arch/i386/libgcc/__divti3.c
+ */
+
+#include "asm/types.h"
+#define NULL ((void *)0)
+
+extern __uint128_t __udivmodti4(__uint128_t num, __uint128_t den, __uint128_t *rem);
+
+__int128_t __divti3(__int128_t num, __int128_t den)
+{
+ int minus = 0;
+ __int128_t v;
+
+ if ( num < 0 ) {
+ num = -num;
+ minus = 1;
+ }
+ if ( den < 0 ) {
+ den = -den;
+ minus ^= 1;
+ }
+
+ v = __udivmodti4(num, den, NULL);
+ if ( minus )
+ v = -v;
+
+ return v;
+}
Added: openbios-devel/libgcc/__udivmodti4.c
===================================================================
--- openbios-devel/libgcc/__udivmodti4.c (rev 0)
+++ openbios-devel/libgcc/__udivmodti4.c 2006-06-11 10:50:31 UTC (rev 62)
@@ -0,0 +1,34 @@
+#include "asm/types.h"
+
+extern void __divide_error();
+
+__uint128_t __udivmodti4(__uint128_t num, __uint128_t den, __uint128_t *rem_p)
+{
+ __uint128_t quot = 0, qbit = 1;
+
+ if ( den == 0 ) {
+ __divide_error();
+ return 0; /* If trap returns... */
+ }
+
+ /* Left-justify denominator and count shift */
+ while ( (__int128_t)den >= 0 ) {
+ den <<= 1;
+ qbit <<= 1;
+ }
+
+ while ( qbit ) {
+ if ( den <= num ) {
+ num -= den;
+ quot += qbit;
+ }
+ den >>= 1;
+ qbit >>= 1;
+ }
+
+ if ( rem_p )
+ *rem_p = num;
+
+ return quot;
+}
+
Added: openbios-devel/libgcc/__udivti3.c
===================================================================
--- openbios-devel/libgcc/__udivti3.c (rev 0)
+++ openbios-devel/libgcc/__udivti3.c 2006-06-11 10:50:31 UTC (rev 62)
@@ -0,0 +1,13 @@
+/*
+ * arch/i386/libgcc/__divdi3.c
+ */
+
+#include "asm/types.h"
+#define NULL ((void *)0)
+
+extern __uint128_t __udivmodti4(__uint128_t num, __uint128_t den, __uint128_t *rem);
+
+__uint128_t __udivti3(__uint128_t num, __uint128_t den)
+{
+ return __udivmodti4(num, den, NULL);
+}
Added: openbios-devel/libgcc/__umodti3.c
===================================================================
--- openbios-devel/libgcc/__umodti3.c (rev 0)
+++ openbios-devel/libgcc/__umodti3.c 2006-06-11 10:50:31 UTC (rev 62)
@@ -0,0 +1,15 @@
+/*
+ * arch/i386/libgcc/__umoddi3.c
+ */
+
+#include "asm/types.h"
+
+extern __uint128_t __udivmodti4(__uint128_t num, __uint128_t den, __uint128_t *rem);
+
+__uint128_t __umodti3(__uint128_t num, __uint128_t den)
+{
+ __uint128_t v;
+
+ (void) __udivmodti4(num, den, &v);
+ return v;
+}
Modified: openbios-devel/libgcc/build.xml
===================================================================
--- openbios-devel/libgcc/build.xml 2006-06-10 02:22:45 UTC (rev 61)
+++ openbios-devel/libgcc/build.xml 2006-06-11 10:50:31 UTC (rev 62)
@@ -3,11 +3,19 @@
<library name="gcc" type="static" target="target">
<object source="ashldi3.c"/>
<object source="ashrdi3.c"/>
+ <object source="__lshrdi3.c"/>
+
<object source="__divdi3.c"/>
<object source="__udivdi3.c"/>
<object source="__udivmoddi4.c"/>
<object source="__umoddi3.c"/>
- <object source="__lshrdi3.c"/>
+ <object source="__divti3.c"/>
+ <object source="__udivti3.c"/>
+ <object source="__udivmodti4.c"/>
+ <object source="__umodti3.c"/>
+
+ <object source="multi3.c"/>
+
</library>
</build>
Added: openbios-devel/libgcc/multi3.c
===================================================================
--- openbios-devel/libgcc/multi3.c (rev 0)
+++ openbios-devel/libgcc/multi3.c 2006-06-11 10:50:31 UTC (rev 62)
@@ -0,0 +1,86 @@
+/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
+ gcc-2.7.2.3/longlong.h which is: */
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#define BITS_PER_UNIT 8
+#define DI_TYPE_SIZE 64
+
+#define __BITS4 (DI_TYPE_SIZE / 4)
+#define __ll_B (1L << (DI_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((UDItype) (t) % __ll_B)
+#define __ll_highpart(t) ((UDItype) (t) / __ll_B)
+
+#define umul_ppmm(w1, w0, u, v) \
+ do { \
+ UDItype __x0, __x1, __x2, __x3; \
+ UDItype __ul, __vl, __uh, __vh; \
+ \
+ __ul = __ll_lowpart (u); \
+ __uh = __ll_highpart (u); \
+ __vl = __ll_lowpart (v); \
+ __vh = __ll_highpart (v); \
+ \
+ __x0 = (UDItype) __ul * __vl; \
+ __x1 = (UDItype) __ul * __vh; \
+ __x2 = (UDItype) __uh * __vl; \
+ __x3 = (UDItype) __uh * __vh; \
+ \
+ __x1 += __ll_highpart (__x0);/* this can't give carry */ \
+ __x1 += __x2; /* but this indeed can */ \
+ if (__x1 < __x2) /* did we get it? */ \
+ __x3 += __ll_B; /* yes, add it in the proper pos. */ \
+ \
+ (w1) = __x3 + __ll_highpart (__x1); \
+ (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
+ } while (0)
+
+#define __umulsidi3(u, v) \
+ ({TIunion __w; \
+ umul_ppmm (__w.s.high, __w.s.low, u, v); \
+ __w.ll; })
+
+typedef int DItype __attribute__ ((mode (DI)));
+typedef unsigned int UDItype __attribute__ ((mode (DI)));
+typedef int TItype __attribute__ ((mode (TI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct TIstruct {DItype high, low;};
+
+typedef union
+{
+ struct TIstruct s;
+ TItype ll;
+} TIunion;
+
+TItype
+__multi3 (TItype u, TItype v)
+{
+ TIunion w;
+ TIunion uu, vv;
+
+ uu.ll = u,
+ vv.ll = v;
+
+ w.ll = __umulsidi3 (uu.s.low, vv.s.low);
+ w.s.high += ((UDItype) uu.s.low * (UDItype) vv.s.high
+ + (UDItype) uu.s.high * (UDItype) vv.s.low);
+
+ return w.ll;
+}
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