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comparison gcc/config/picochip/constraints.md @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 ;; GCC machine description for picochip
2 ;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
3 ;; Contributed by picoChip Designs Ltd (http://www.picochip.com)
4 ;; Maintained by Daniel Towner (dant@picochip.com) and Hariharan
5 ;; Sandanagobalane (hariharan@picochip.com)
6 ;;
7 ;; This file is part of GCC.
8 ;;
9 ;; GCC is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 3, or (at your option)
12 ;; any later version.
13 ;;
14 ;; GCC is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
18 ;;
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GCC; see the file COPYING3. If not, see
21 ;; <http://www.gnu.org/licenses/>.
22
23 (define_constraint "I"
24 "4-bits signed value"
25 (and (match_code "const_int")
26 (match_test " ival >= -8 && ival< 8")))
27
28 (define_constraint "J"
29 "4-bits unsigned value"
30 (and (match_code "const_int")
31 (match_test "ival>=0 && ival < 16")))
32
33 (define_constraint "K"
34 "8-bits signed value"
35 (and (match_code "const_int")
36 (match_test " ival >= -128 && ival < 128")))
37
38 (define_constraint "M"
39 "4-bits magnitude"
40 (and (match_code "const_int")
41 (match_test " abs(ival) < 16")))
42
43 (define_constraint "N"
44 "10-bits signed value"
45 (and (match_code "const_int")
46 (match_test "ival >= -512 && ival < 512")))
47
48 (define_constraint "O"
49 "16-bits signed value"
50 (and (match_code "const_int")
51 (match_test " ival >= -32768 && ival < 32768 ")))
52
53 (define_constraint "a"
54 "See if this is an absolute address in memory"
55 (and (match_code "mem")
56 (match_test "picochip_absolute_memory_operand(op,mode) == 1")))
57
58 (define_register_constraint "k" "FRAME_REGS"
59 "Frame regs")
60 (define_register_constraint "f" "PTR_REGS"
61 "Pointer regs")
62 (define_register_constraint "t" "TWIN_REGS"
63 "Twin regs")
64