$NetBSD: patch-bl,v 1.1.1.1 2003/04/29 09:22:28 thomasklausner Exp $

--- /dev/null	2003-04-28 12:43:56.000000000 +0100
+++ src/lib/machines/netbsd/80x86/tokens/dep_toks.pl	1998-03-16 10:39:19.000000000 +0000
@@ -0,0 +1,241 @@
+/*
+    		 Crown Copyright (c) 1997
+    
+    This TenDRA(r) Computer Program is subject to Copyright
+    owned by the United Kingdom Secretary of State for Defence
+    acting through the Defence Evaluation and Research Agency
+    (DERA).  It is made available to Recipients with a
+    royalty-free licence for its use, reproduction, transfer
+    to other parties and amendment for any purpose not excluding
+    product development provided that any such use et cetera
+    shall be deemed to be acceptance of the following conditions:-
+    
+        (1) Its Recipients shall ensure that this Notice is
+        reproduced upon any copies or amended versions of it;
+    
+        (2) Any amended version of it shall be clearly marked to
+        show both the nature of and the organisation responsible
+        for the relevant amendment or amendments;
+    
+        (3) Its onward transfer from a recipient to another
+        party shall be deemed to be that party's acceptance of
+        these conditions;
+    
+        (4) DERA gives no warranty or assurance as to its
+        quality or suitability for any purpose and DERA accepts
+        no liability whatsoever in relation to any use to which
+        it may be put.
+*/
+	/* **************************************************** */
+	/*							*/
+	/* Target Dependency Token Definitions for trans386	*/
+	/*							*/
+	/* **************************************************** */
+
+
+
+
+	/* LOCAL TOKENS */
+
+
+Tokdef REP_V = [] VARIETY
+	/* variety for integer widths and float_sequence */
+var_width (false, 16);
+
+
+Tokdef NATTEST = [a:NAT, comp:NTEST, b:NAT] EXP
+	/* comparison of nats, for static conditionals */
+? { ?(snat_from_nat(false,a)(REP_V) comp snat_from_nat(false,b)(REP_V));
+    1(REP_V)
+  | 0(REP_V)
+};
+
+
+Tokdef PUN = [from_sh:SHAPE, to_sh:SHAPE, val:EXP] EXP
+	/* representation preserving conversion */
+component (to_sh,
+  Cons [ shape_offset(from_sh) .max. shape_offset(to_sh) ] (
+    offset_zero(alignment(from_sh)) : val
+  ),
+  offset_zero(alignment(to_sh))
+);
+
+
+Tokdef PTR_V = [] VARIETY
+	/* variety for converted pointers */
+var_width (true, 32);
+
+
+
+
+	/* INTEGER VARIETY REPRESENTATIONS */
+
+
+Tokdef .~rep_var_width = [w:NAT] NAT
+NAT ? ( NATTEST [w, <=, 8],
+  8,
+  NAT ? ( NATTEST [w, <=, 16],
+    16,
+    NAT ? ( NATTEST [w, <=, 32],
+      32,
+      NAT ? ( NATTEST [w, <=, 64],
+	64,
+	0
+      )
+    )
+  )
+);
+
+
+Tokdef .~rep_atomic_width = [] NAT
+32;
+
+
+
+
+	/* FLOATING VARIETY REPRESENTATIONS */
+
+/* sequence: 1=single, 2=double, 3=extended */
+
+
+Tokdef .~rep_fv = [n:NAT] FLOATING_VARIETY
+FLOATING_VARIETY ? ( NATTEST [n, ==, 1],
+  flvar_parms (2, 24, 126, 127),
+  FLOATING_VARIETY ? ( NATTEST [n, ==, 2],
+    flvar_parms (2, 53, 1022, 1023),
+    flvar_parms (2, 64, 16382, 16383)	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_width = [n:NAT] NAT
+NAT ? ( NATTEST [n, ==, 1],
+  32,
+  NAT ? ( NATTEST [n, ==, 2],
+    64,
+    NAT ? ( NATTEST [n, ==, 3],
+      80,	/* 80 bits memory, increased to 96 by ABI */
+      0		/* provides test for end of range */
+    )
+  )
+);
+
+
+Tokdef .~rep_fv_radix = [n:NAT] NAT
+2;
+
+
+Tokdef .~rep_fv_mantissa = [n:NAT] NAT
+NAT ? ( NATTEST [n, ==, 1],
+  24,
+  NAT ? ( NATTEST [n, ==, 2],
+    53,
+    64	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_min_exp = [n:NAT] NAT
+NAT ? ( NATTEST [n, ==, 1],
+  149,
+  NAT ? ( NATTEST [n, ==, 2],
+    1074,
+    16445	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_max_exp = [n:NAT] NAT
+NAT ? ( NATTEST [n, ==, 1],
+  127,
+  NAT ? ( NATTEST [n, ==, 2],
+    1023,
+    16383	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_epsilon = [n:NAT] EXP
+EXP ? ( NATTEST [n, ==, 1],
+  (2r1.0 E -23 (.~rep_fv[n])),
+  EXP ? ( NATTEST [n, ==, 2],
+    (2r1.0 E -52 (.~rep_fv[n])),
+    (2r1.0 E -63 (.~rep_fv[n]))	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_min_val = [n:NAT] EXP
+EXP ? ( NATTEST [n, ==, 1],
+  (2r1.0 E -149 (.~rep_fv[n])),
+  EXP ? ( NATTEST [n, ==, 2],
+    (2r1.0 E -1074 (.~rep_fv[n])),
+    (2r1.0 E -16445 (.~rep_fv[n]))	/* n must be in range */
+  )
+);
+
+
+Tokdef .~rep_fv_max_val = [n:NAT] EXP
+EXP ? ( NATTEST [n, ==, 1],
+  (8r3.77777774 E 42
+    (.~rep_fv[n])),
+  EXP ? ( NATTEST [n, ==, 2],
+    (8r1.777777777777777774 E 341
+      (.~rep_fv[n])),
+    (8r1.777777777777777777777 E 5461
+      (.~rep_fv[n]))		/* n must be in range */
+  )
+);
+
+
+
+
+	/* NON-NUMERIC REPRESENTATIONS */
+
+
+Tokdef .~ptr_width = [] NAT
+32;
+
+
+Tokdef .~best_div = [] NAT
+2;
+
+
+Tokdef .~little_endian = [] BOOL
+true;
+
+
+
+
+	/* COMMON CONVERSION ROUTINES */
+
+
+Tokdef .~ptr_to_ptr = [a1:ALIGNMENT, a2:ALIGNMENT, p:EXP] EXP
+PUN [ pointer(a1), pointer(a2), p ];
+
+
+Tokdef .~ptr_to_int = [a:ALIGNMENT, v:VARIETY, p:EXP] EXP
+([v] PUN [ pointer(a), integer(PTR_V), p ]);
+
+
+Tokdef .~int_to_ptr = [v:VARIETY, a:ALIGNMENT, i:EXP] EXP
+PUN [ integer(PTR_V), pointer(a), [PTR_V] i ];
+
+
+Tokdef .~f_to_ptr = [a:ALIGNMENT, fn:EXP] EXP
+PUN [ proc, pointer(a), fn ];
+
+
+Tokdef .~ptr_to_f = [a:ALIGNMENT, p:EXP] EXP
+PUN [ pointer(a), proc, p ];
+
+
+
+
+Keep (
+.~rep_var_width, .~rep_atomic_width,
+.~rep_fv, .~rep_fv_width, .~rep_fv_radix, .~rep_fv_mantissa, .~rep_fv_min_exp, 
+.~rep_fv_max_exp, .~rep_fv_epsilon, .~rep_fv_min_val, .~rep_fv_max_val,
+.~ptr_width, .~best_div, .~little_endian,
+.~ptr_to_ptr, .~ptr_to_int, .~int_to_ptr, .~f_to_ptr, .~ptr_to_f
+)