| 1 | ; Toshiba MeP Media Engine architecture description. -*- Scheme -*- |
| 2 | ; Copyright 2011 Free Software Foundation, Inc. |
| 3 | ; |
| 4 | ; Contributed by Red Hat Inc; |
| 5 | ; |
| 6 | ; This file is part of the GNU Binutils. |
| 7 | ; |
| 8 | ; This program is free software; you can redistribute it and/or modify |
| 9 | ; it under the terms of the GNU General Public License as published by |
| 10 | ; the Free Software Foundation; either version 3 of the License, or |
| 11 | ; (at your option) any later version. |
| 12 | ; |
| 13 | ; This program is distributed in the hope that it will be useful, |
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | ; GNU General Public License for more details. |
| 17 | ; |
| 18 | ; You should have received a copy of the GNU General Public License |
| 19 | ; along with this program; if not, write to the Free Software |
| 20 | ; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | ; MA 02110-1301, USA. |
| 22 | |
| 23 | ; This file provides sample definitions for the UCI and DSP |
| 24 | ; instructions. It is incorporated into the overall description by |
| 25 | ; including it from a top-level file that includes all of the required |
| 26 | ; option files. |
| 27 | |
| 28 | ; UCI option. |
| 29 | |
| 30 | (define-pmacro mep-ext1-isa () (ISA ext_core1)) |
| 31 | |
| 32 | |
| 33 | ; uci instructions for ELFextension test |
| 34 | |
| 35 | ; uci.elfext.1 $simm16 |
| 36 | ; 1111_IIII_0000_0010 0001_iiii_iiii_iiii |
| 37 | ; simm16 = I[4:7]||i[20:31] |
| 38 | |
| 39 | ; uci.elfext.2 $uimm16 |
| 40 | ; 1111_IIII_0000_0010 0010_iiii_iiii_iiii |
| 41 | ; uimm16 = I[4:7]||i[20:31] |
| 42 | |
| 43 | ; define simm16 |
| 44 | (df f-uci_elfext_1-hi "uci_elfext_1 simm16 hi 4s7" (mep-ext1-isa) 4 4 INT #f #f) |
| 45 | (df f-uci_elfext_1-lo "uci_elfext_1 simm16 lo 20s31" (mep-ext1-isa) 20 12 UINT #f #f) |
| 46 | (define-multi-ifield |
| 47 | (name f-uci_elfext_1) |
| 48 | (comment "16-bits uci_elfext_ signed constant") |
| 49 | (attrs mep-ext1-isa) |
| 50 | (mode INT) |
| 51 | (subfields f-uci_elfext_1-hi f-uci_elfext_1-lo) |
| 52 | (insert (sequence () |
| 53 | (set (ifield f-uci_elfext_1-hi) (srl (ifield f-uci_elfext_1) 12)) |
| 54 | (set (ifield f-uci_elfext_1-lo) (and (ifield f-uci_elfext_1) #xfff)))) |
| 55 | (extract (set (ifield f-uci_elfext_1) |
| 56 | (or (sll (ifield f-uci_elfext_1-hi) 12) |
| 57 | (ifield f-uci_elfext_1-lo)))) |
| 58 | ) |
| 59 | (dpop uci_elfext_1simm16 "signed imm (16 bits)" (mep-ext1-isa) h-sint f-uci_elfext_1 "signed16") |
| 60 | |
| 61 | ; define uimm16 |
| 62 | (df f-uci_elfext_2-hi "uci_elfext_2 uimm16 hi 4u7" (mep-ext1-isa) 4 4 UINT #f #f) |
| 63 | (df f-uci_elfext_2-lo "uci_elfext_2 uimm16 lo 20u31" (mep-ext1-isa) 20 12 UINT #f #f) |
| 64 | (define-multi-ifield |
| 65 | (name f-uci_elfext_2) |
| 66 | (comment "16-bits uci_elfext_ unsigned constant") |
| 67 | (attrs mep-ext1-isa) |
| 68 | (mode UINT) |
| 69 | (subfields f-uci_elfext_2-hi f-uci_elfext_2-lo) |
| 70 | (insert (sequence () |
| 71 | (set (ifield f-uci_elfext_2-hi) (srl (ifield f-uci_elfext_2) 12)) |
| 72 | (set (ifield f-uci_elfext_2-lo) (and (ifield f-uci_elfext_2) #xfff)))) |
| 73 | (extract (set (ifield f-uci_elfext_2) |
| 74 | (or (sll (ifield f-uci_elfext_2-hi) 12) |
| 75 | (ifield f-uci_elfext_2-lo)))) |
| 76 | ) |
| 77 | (dpop uci_elfext_2uimm16 "unsigned imm (16 bits)" (mep-ext1-isa) h-uint f-uci_elfext_2 "unsigned16") |
| 78 | |
| 79 | ; define sub-opcode |
| 80 | (df f-uci_elfext-sub "sub-opcode for uci_elfext instructions" (mep-ext1-isa) 16 4 UINT #f #f) |
| 81 | |
| 82 | |
| 83 | ; define instruction |
| 84 | (dni uci.elfext.1 "uci_elfext instruction 1" (OPTIONAL_UCI_INSN VOLATILE mep-ext1-isa) |
| 85 | "uci.elfext.1 $uci_elfext_1simm16" |
| 86 | (+ MAJ_15 (f-rm 0) (f-sub4 2) (f-uci_elfext-sub 1) uci_elfext_1simm16) |
| 87 | (c-call "check_option_uci" pc) |
| 88 | () |
| 89 | ) |
| 90 | |
| 91 | ; define instruction |
| 92 | (dni uci.elfext.2 "uci_elfext instruction 1" (OPTIONAL_UCI_INSN VOLATILE mep-ext1-isa) |
| 93 | "uci.elfext.2 $uci_elfext_2uimm16" |
| 94 | (+ MAJ_15 (f-rm 0) (f-sub4 2) (f-uci_elfext-sub 2) uci_elfext_2uimm16) |
| 95 | (c-call "check_option_uci" pc) |
| 96 | () |
| 97 | ) |
| 98 | |
| 99 | |
| 100 | |
| 101 | ;; some general samples |
| 102 | ; UCI option. |
| 103 | |
| 104 | (dni uci "user defined instruction" (OPTIONAL_UCI_INSN mep-ext1-isa) |
| 105 | "uci $rn,$rm,$code16" |
| 106 | (+ MAJ_15 rn rm (f-sub4 2) code16) |
| 107 | (sequence () |
| 108 | (c-call "check_option_uci" pc) |
| 109 | (unimp "uci")) |
| 110 | ()) |
| 111 | |
| 112 | ; DSP option. |
| 113 | |
| 114 | (dni dsp "dsp instruction" (OPTIONAL_DSP_INSN mep-ext1-isa) |
| 115 | "dsp $rn,$rm,$code16" |
| 116 | (+ MAJ_15 rn rm (f-sub4 0) code16) |
| 117 | (sequence () |
| 118 | (c-call "check_option_dsp" pc) |
| 119 | (set pc (c-call USI "dsp_exception" pc))) |
| 120 | ()) |