Commit of 3.99.0 version

Stack/libstack-HP.c

@@ -0,0 +1,70 @@
+/******************************************************************************
+ *
+ * l i b s t a c k - H P . c
+ *
+ * Copyright © 1997 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
+ * 
+ *
+ * Permission to use, copy, and/or distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that both the above copyright notice and this permission notice appear in
+ * all copies and derived works.  Fees for distribution or use of this
+ * software or derived works may only be charged with express written
+ * permission of the copyright holder.  
+ * This software is provided ``as is'' without express or implied warranty.
+ *
+ * This software is a derivative work of other copyrighted softwares; the
+ * copyright notices of these softwares are placed in the file COPYRIGHTS
+ *
+ *
+ *           Author: Erick Gallesio [eg@unice.fr]
+ *    Creation date: 29-Sep-1997 12:18
+ * Last file update: 29-Sep-1997 14:36
+ *
+ ******************************************************************************/
+
+#include "libstack.h"
+/* 
+   All arguments, except the first 4 words, are passed on the stack
+   with word alignment. Doubles take two words and force double
+   alignment. 
+   The first 2 words are passed like this:
+       %r26 = first integer arg, %r25 = second integer arg, or
+       %r26 = high word of double arg, %r25 = low word of double arg.
+   Similarly for the next 2 words, passed in %r24 and %r23.
+*/
+
+fake_type stk_argv[MAX_EXTERNAL_PARAM];
+int stk_argc = 0;
+
+
+int stk_push_double(double d)
+{
+  if (stk_argc & 1) /* align */ stk_argc++;
+
+  if ((stk_argc < MAX_EXTERNAL_PARAM-1)) {
+    stk_argv[stk_argc+1].d  = d;
+    stk_argv[stk_argc].i[1]= stk_argv[stk_argc].i[0];
+    stk_argc +=2;
+    return 0;
+  }
+  return -1;
+}
+
+long stk_call_long(void *func)
+{
+  long (*f)() = func;
+  big_switch;
+}
+
+double stk_call_double(void *func)
+{
+  double (*f)() = func;
+  big_switch;
+}
+
+float stk_call_float(void *func)
+{
+  float (*f)() = func;
+  big_switch;
+}