Initial revision

1 files changed, 166 insertions, 0 deletions

diff --git a/bfd/cpu-i960.c b/bfd/cpu-i960.c
new file mode 100644
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--- /dev/null
+++ b/bfd/cpu-i960.c
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+/* BFD library support routines for the i960 architecture.
+   Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+   Hacked by Steve Chamberlain of Cygnus Support.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program 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 of the License, or
+(at your option) any later version.
+
+This program 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.  */
+
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+
+/* This routine is provided a string, and tries to work out if it
+   could possibly refer to the i960 machine pointed at in the
+   info_struct pointer */
+
+static boolean
+scan_960_mach (ap, string)
+     const bfd_arch_info_type *ap;
+     const char *string;
+{
+  unsigned long machine;
+
+  /* Look for the string i960, or somesuch at the front of the string  */
+
+  if (strncmp("i960",string,4) == 0) {
+    string+=4;
+  }
+  else {
+    /* no match, can be us */
+    return false;
+  }
+  if (string[0] == 0) {
+    /* i960 on it's own means core to us*/
+    if (ap->mach == bfd_mach_i960_core) return true;
+    return false;
+  }
+
+  if (string[0] != ':') {
+    return false;
+  }
+  string++;
+  if (string[0] == '\0')
+    return false;
+  if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' &&
+      string[3] == 'e' && string[4] == '\0')
+    machine = bfd_mach_i960_core;
+  else if (strcmp (string, "ka_sa") == 0)
+    machine = bfd_mach_i960_ka_sa;
+  else if (strcmp (string, "kb_sb") == 0)
+    machine = bfd_mach_i960_kb_sb;
+  else if (string[1] == '\0' || string[2] != '\0') /* rest are 2-char */
+    return false;
+  else if (string[0] == 'k' && string[1] == 'b')
+    machine = bfd_mach_i960_kb_sb;
+  else if (string[0] == 's' && string[1] == 'b')
+    machine = bfd_mach_i960_kb_sb;
+  else if (string[0] == 'm' && string[1] == 'c')
+    machine = bfd_mach_i960_mc;
+  else if (string[0] == 'x' && string[1] == 'a')
+    machine = bfd_mach_i960_xa;
+  else if (string[0] == 'c' && string[1] == 'a')
+    machine = bfd_mach_i960_ca;
+  else if (string[0] == 'k' && string[1] == 'a')
+    machine = bfd_mach_i960_ka_sa;
+  else if (string[0] == 's' && string[1] == 'a')
+    machine = bfd_mach_i960_ka_sa;
+  else if (string[0] == 'j' && string[1] == 'x')
+    machine = bfd_mach_i960_jx;
+  else if (string[0] == 'h' && string[1] == 'x')
+    machine = bfd_mach_i960_hx;
+  else
+    return false;
+  if (machine == ap->mach)   return true;
+  return false;
+}
+
+
+
+/* This routine is provided two arch_infos and works out the i960
+   machine which would be compatible with both and returns a pointer
+   to its info structure */
+
+static const bfd_arch_info_type *
+compatible (a,b)
+     const bfd_arch_info_type *a;
+     const bfd_arch_info_type *b;
+{
+
+  /* The i960 has distinct subspecies which may not interbreed:
+	CORE CA          
+	CORE KA KB MC XA
+	CORE HX JX
+     Any architecture on the same line is compatible, the one on
+     the right is the least restrictive.  
+     
+     We represent this information in an array, each machine to a side */
+
+#define ERROR	0
+#define CORE	bfd_mach_i960_core  /*1*/  
+#define KA 	bfd_mach_i960_ka_sa /*2*/ 
+#define KB 	bfd_mach_i960_kb_sb /*3*/
+#define MC 	bfd_mach_i960_mc    /*4*/
+#define XA 	bfd_mach_i960_xa    /*5*/
+#define CA 	bfd_mach_i960_ca    /*6*/
+#define JX	bfd_mach_i960_jx    /*7*/
+#define HX	bfd_mach_i960_hx    /*8*/
+#define MAX_ARCH ((int)HX)
+
+  static CONST unsigned long matrix[MAX_ARCH+1][MAX_ARCH+1] = 
+    {
+      { ERROR,	CORE,	KA,	KB,	MC,	XA,	CA,	JX,	HX },
+      { CORE,	CORE,	KA,	KB,	MC,	XA,	CA,	JX,	HX },
+      { KA,	KA,	KA,	KB,	MC,	XA,	ERROR,	ERROR,	ERROR},
+      { KB,	KB,	KB,	KB,	MC,	XA,	ERROR, 	ERROR,	ERROR},
+      { MC,	MC,	MC,	MC,	MC,	XA,	ERROR,	ERROR,	ERROR},
+      { XA,	XA,	XA,	XA,	XA,	XA,	ERROR,	ERROR,	ERROR},
+      { CA,	CA,	ERROR,	ERROR,	ERROR,	ERROR,	CA,	ERROR,	ERROR},
+      { JX,	JX,	ERROR,	ERROR,	ERROR,	ERROR,	ERROR,  JX,	HX },
+      { HX,	HX,	ERROR,	ERROR,	ERROR,	ERROR,	ERROR,	HX,	HX },
+    };
+
+
+  if (a->arch != b->arch || matrix[a->mach][b->mach] == ERROR) 
+    {
+    return NULL;
+    }
+  else 
+    {
+    return (a->mach  ==  matrix[a->mach][b->mach]) ?  a : b;
+    }
+}
+
+
+
+int bfd_default_scan_num_mach();
+#define N(a,b,d,n) \
+{ 32, 32, 8,bfd_arch_i960,a,"i960",b,3,d,compatible,scan_960_mach,n,}
+
+static const bfd_arch_info_type arch_info_struct[] = 
+{ 
+  N(bfd_mach_i960_ka_sa,"i960:ka_sa",false, &arch_info_struct[1]),
+  N(bfd_mach_i960_kb_sb,"i960:kb_sb",false, &arch_info_struct[2]),
+  N(bfd_mach_i960_mc,   "i960:mc",   false, &arch_info_struct[3]),
+  N(bfd_mach_i960_xa,   "i960:xa",   false, &arch_info_struct[4]),
+  N(bfd_mach_i960_ca,   "i960:ca",   false, &arch_info_struct[5]),
+  N(bfd_mach_i960_jx,   "i960:jx",   false, &arch_info_struct[6]),
+  N(bfd_mach_i960_hx,	"i960:hx",   false, 0),
+};
+
+const bfd_arch_info_type bfd_i960_arch =
+  N(bfd_mach_i960_core, "i960:core", true, &arch_info_struct[0]);