+/* Floating point library in optimized assembly for 8051
+ * Copyright (c) 2004, Paul Stoffregen, paul@pjrc.com
+ *
+ * This program 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.
+ *
+ * This 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+#define SDCC_FLOAT_LIB
+#include <float.h>
+
+
+#ifdef FLOAT_ASM_MCS51
+
+// char __fsneq (float a, float b)
+static void dummy(void) __naked
+{
+ __asm
+ .globl ___fsneq
+___fsneq:
+ mov r7, a
+ mov r0, sp
+ dec r0
+ dec r0
+ lcall fs_check_negative_zeros
+ lcall fs_compare_uint32
+ mov dpl, r1
+ ret
+ __endasm;
+}
+
+#else
+
/*
** libgcc support for software floating point.
** Copyright (C) 1991 by Pipeline Associates, Inc. All rights reserved.
/* (c)2000/2001: hacked a little by johan.knol@iduna.nl for sdcc */
-#include <float.h>
-
union float_long
{
float f;
fl1.f = a1;
fl2.f = a2;
- if (fl1.l<0 && fl2.l<0)
- {
- fl1.l ^= SIGNBIT;
- fl2.l ^= SIGNBIT;
- }
if (fl1.l == fl2.l)
return (0);
+ if (((fl1.l | fl2.l) & 0x7FFFFFFF) == 0)
+ return (0);
return (1);
}
+
+#endif