1 /* moxie-opc.c -- Definitions for moxie opcodes. 2 Copyright 2009 Free Software Foundation, Inc. 3 Contributed by Anthony Green (green@moxielogic.com). 4 5 This file is part of the GNU opcodes library. 6 7 This library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 It is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this file; see the file COPYING. If not, write to the 19 Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #include "sysdep.h" 23 #include "opcode/moxie.h" 24 25 /* The moxie processor's 16-bit instructions come in two forms: 26 27 FORM 1 instructions start with a 0 bit... 28 29 0oooooooaaaabbbb 30 0 F 31 32 ooooooo - form 1 opcode number 33 aaaa - operand A 34 bbbb - operand B 35 36 FORM 2 instructions start with bits "10"... 37 38 10ooaaaavvvvvvvv 39 0 F 40 41 oo - form 2 opcode number 42 aaaa - operand A 43 vvvvvvvv - 8-bit immediate value 44 45 FORM 3 instructions start with a bits "11"... 46 47 11oooovvvvvvvvvv 48 0 F 49 50 oooo - form 3 opcode number 51 vvvvvvvvvv - 10-bit immediate value. */ 52 53 /* Note that currently two opcodes are reserved as bad, so that all 54 instructions starting with 0x00 and 0xff fault. */ 55 56 const moxie_opc_info_t moxie_form1_opc_info[64] = 57 { 58 { 0x00, MOXIE_F1_NARG, "bad" }, // Reserved as bad. 59 { 0x01, MOXIE_F1_A4, "ldi.l" }, 60 { 0x02, MOXIE_F1_AB, "mov" }, 61 { 0x03, MOXIE_F1_M, "jsra" }, 62 { 0x04, MOXIE_F1_NARG, "ret" }, 63 { 0x05, MOXIE_F1_AB, "add.l" }, 64 { 0x06, MOXIE_F1_AB, "push" }, 65 { 0x07, MOXIE_F1_AB, "pop" }, 66 { 0x08, MOXIE_F1_A4, "lda.l" }, 67 { 0x09, MOXIE_F1_4A, "sta.l" }, 68 { 0x0a, MOXIE_F1_ABi, "ld.l" }, 69 { 0x0b, MOXIE_F1_AiB, "st.l" }, 70 { 0x0c, MOXIE_F1_ABi4, "ldo.l" }, 71 { 0x0d, MOXIE_F1_AiB4, "sto.l" }, 72 { 0x0e, MOXIE_F1_AB, "cmp" }, 73 { 0x0f, MOXIE_F1_NARG, "nop" }, 74 { 0x10, MOXIE_F1_NARG, "bad" }, 75 { 0x11, MOXIE_F1_NARG, "bad" }, 76 { 0x12, MOXIE_F1_NARG, "bad" }, 77 { 0x13, MOXIE_F1_NARG, "bad" }, 78 { 0x14, MOXIE_F1_NARG, "bad" }, 79 { 0x15, MOXIE_F1_NARG, "bad" }, 80 { 0x16, MOXIE_F1_NARG, "bad" }, 81 { 0x17, MOXIE_F1_NARG, "bad" }, 82 { 0x18, MOXIE_F1_NARG, "bad" }, 83 { 0x19, MOXIE_F1_A, "jsr" }, 84 { 0x1a, MOXIE_F1_M, "jmpa" }, 85 { 0x1b, MOXIE_F1_A4, "ldi.b" }, 86 { 0x1c, MOXIE_F1_ABi, "ld.b" }, 87 { 0x1d, MOXIE_F1_A4, "lda.b" }, 88 { 0x1e, MOXIE_F1_AiB, "st.b" }, 89 { 0x1f, MOXIE_F1_4A, "sta.b" }, 90 { 0x20, MOXIE_F1_A4, "ldi.s" }, 91 { 0x21, MOXIE_F1_ABi, "ld.s" }, 92 { 0x22, MOXIE_F1_A4, "lda.s" }, 93 { 0x23, MOXIE_F1_AiB, "st.s" }, 94 { 0x24, MOXIE_F1_4A, "sta.s" }, 95 { 0x25, MOXIE_F1_A, "jmp" }, 96 { 0x26, MOXIE_F1_AB, "and" }, 97 { 0x27, MOXIE_F1_AB, "lshr" }, 98 { 0x28, MOXIE_F1_AB, "ashl" }, 99 { 0x29, MOXIE_F1_AB, "sub.l" }, 100 { 0x2a, MOXIE_F1_AB, "neg" }, 101 { 0x2b, MOXIE_F1_AB, "or" }, 102 { 0x2c, MOXIE_F1_AB, "not" }, 103 { 0x2d, MOXIE_F1_AB, "ashr" }, 104 { 0x2e, MOXIE_F1_AB, "xor" }, 105 { 0x2f, MOXIE_F1_AB, "mul.l" }, 106 { 0x30, MOXIE_F1_4, "swi" }, 107 { 0x31, MOXIE_F1_AB, "div.l" }, 108 { 0x32, MOXIE_F1_AB, "udiv.l" }, 109 { 0x33, MOXIE_F1_AB, "mod.l" }, 110 { 0x34, MOXIE_F1_AB, "umod.l" }, 111 { 0x35, MOXIE_F1_NARG, "brk" }, 112 { 0x36, MOXIE_F1_ABi4, "ldo.b" }, 113 { 0x37, MOXIE_F1_AiB4, "sto.b" }, 114 { 0x38, MOXIE_F1_ABi4, "ldo.s" }, 115 { 0x39, MOXIE_F1_AiB4, "sto.s" }, 116 { 0x3a, MOXIE_F1_NARG, "bad" }, 117 { 0x3b, MOXIE_F1_NARG, "bad" }, 118 { 0x3c, MOXIE_F1_NARG, "bad" }, 119 { 0x3d, MOXIE_F1_NARG, "bad" }, 120 { 0x3e, MOXIE_F1_NARG, "bad" }, 121 { 0x3f, MOXIE_F1_NARG, "bad" } 122 }; 123 124 const moxie_opc_info_t moxie_form2_opc_info[4] = 125 { 126 { 0x00, MOXIE_F2_A8V, "inc" }, 127 { 0x01, MOXIE_F2_A8V, "dec" }, 128 { 0x02, MOXIE_F2_A8V, "gsr" }, 129 { 0x03, MOXIE_F2_A8V, "ssr" } 130 }; 131 132 const moxie_opc_info_t moxie_form3_opc_info[16] = 133 { 134 { 0x00, MOXIE_F3_PCREL,"beq" }, 135 { 0x01, MOXIE_F3_PCREL,"bne" }, 136 { 0x02, MOXIE_F3_PCREL,"blt" }, 137 { 0x03, MOXIE_F3_PCREL,"bgt" }, 138 { 0x04, MOXIE_F3_PCREL,"bltu" }, 139 { 0x05, MOXIE_F3_PCREL,"bgtu" }, 140 { 0x06, MOXIE_F3_PCREL,"bge" }, 141 { 0x07, MOXIE_F3_PCREL,"ble" }, 142 { 0x08, MOXIE_F3_PCREL,"bgeu" }, 143 { 0x09, MOXIE_F3_PCREL,"bleu" }, 144 { 0x0a, MOXIE_F3_NARG, "bad" }, 145 { 0x0b, MOXIE_F3_NARG, "bad" }, 146 { 0x0c, MOXIE_F3_NARG, "bad" }, 147 { 0x0d, MOXIE_F3_NARG, "bad" }, 148 { 0x0e, MOXIE_F3_NARG, "bad" }, 149 { 0x0f, MOXIE_F3_NARG, "bad" } // Reserved as bad. 150 }; 151 152 153