Added mcs51 assembly versions for the 12 float/integer conversion functions.

[fw/sdcc] / device / lib / _uchar2fs.c

diff --git a/device/lib/_uchar2fs.c b/device/lib/_uchar2fs.c
index 3e9198820efbe08e82d57d25169101acae23ab91..31af32d8fef8a54d161b07d779c73d99ebd6a4ad 100644 (file)
--- a/device/lib/_uchar2fs.c
+++ b/device/lib/_uchar2fs.c
@@ -1,6 +1,51 @@
+/* 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
+
+// float long __uchar2fs (float x)
+static void dummy(void) _naked
+{
+       _asm
+       .globl  ___uchar2fs
+___uchar2fs:
+       clr     a
+       mov     r4, dpl
+       mov     r3, a
+       mov     r2, a
+       mov     r1, a
+       mov     a, #134
+       ljmp    ulong2fs_doit
+       _endasm;
+}
+
+#else
+
+
+
 /* convert unsigned char to float */
 float __uchar2fs (unsigned char uc) {
   return __ulong2fs(uc);
 }
+
+#endif