| 1 | /* Definitions for decoding the moxie opcode table. |
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| 2 | Copyright 2009 Free Software Foundation, Inc. |
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| 3 | Contributed by Anthony Green (green@moxielogic.com). |
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| 4 | |
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| 5 | This program is free software; you can redistribute it and/or modify |
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| 6 | it under the terms of the GNU General Public License as published by |
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| 7 | the Free Software Foundation; either version 3 of the License, or |
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| 8 | (at your option) any later version. |
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| 9 | |
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| 10 | This program is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | GNU General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
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| 18 | 02110-1301, USA. */ |
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| 19 | |
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| 20 | /* Form 1 instructions come in different flavors: |
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| 21 | |
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| 22 | Some have no arguments (MOXIE_F1_NARG) |
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| 23 | Some only use the A operand (MOXIE_F1_A) |
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| 24 | Some use A and B registers (MOXIE_F1_AB) |
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| 25 | Some use A and consume a 4 byte immediate value (MOXIE_F1_A4) |
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| 26 | Some use just a 4 byte immediate value (MOXIE_F1_4) |
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| 27 | Some use just a 4 byte memory address (MOXIE_F1_M) |
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| 28 | Some use B and an indirect A (MOXIE_F1_AiB) |
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| 29 | Some use A and an indirect B (MOXIE_F1_ABi) |
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| 30 | Some consume a 4 byte immediate value and use X (MOXIE_F1_4A) |
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| 31 | Some use B and an indirect A plus 4 bytes (MOXIE_F1_AiB4) |
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| 32 | Some use A and an indirect B plus 4 bytes (MOXIE_F1_ABi4) |
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| 33 | |
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| 34 | Form 2 instructions also come in different flavors: |
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| 35 | |
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| 36 | Some have no arguments (MOXIE_F2_NARG) |
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| 37 | Some use the A register and an 8-bit value (MOXIE_F2_A8V) |
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| 38 | |
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| 39 | Form 3 instructions also come in different flavors: |
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| 40 | |
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| 41 | Some have no arguments (MOXIE_F3_NARG) |
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| 42 | Some have a 10-bit PC relative operand (MOXIE_F3_PCREL). */ |
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| 43 | |
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| 44 | #define MOXIE_F1_NARG 0x100 |
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| 45 | #define MOXIE_F1_A 0x101 |
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| 46 | #define MOXIE_F1_AB 0x102 |
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| 47 | /* #define MOXIE_F1_ABC 0x103 */ |
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| 48 | #define MOXIE_F1_A4 0x104 |
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| 49 | #define MOXIE_F1_4 0x105 |
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| 50 | #define MOXIE_F1_AiB 0x106 |
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| 51 | #define MOXIE_F1_ABi 0x107 |
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| 52 | #define MOXIE_F1_4A 0x108 |
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| 53 | #define MOXIE_F1_AiB4 0x109 |
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| 54 | #define MOXIE_F1_ABi4 0x10a |
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| 55 | #define MOXIE_F1_M 0x10b |
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| 56 | |
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| 57 | #define MOXIE_F2_NARG 0x200 |
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| 58 | #define MOXIE_F2_A8V 0x201 |
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| 59 | |
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| 60 | #define MOXIE_F3_NARG 0x300 |
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| 61 | #define MOXIE_F3_PCREL 0x301 |
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| 62 | |
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| 63 | #define MOXIE_BAD 0x400 |
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| 64 | |
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| 65 | typedef struct moxie_opc_info_t |
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| 66 | { |
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| 67 | short opcode; |
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| 68 | unsigned itype; |
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| 69 | const char * name; |
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| 70 | } moxie_opc_info_t; |
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| 71 | |
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| 72 | extern const moxie_opc_info_t moxie_form1_opc_info[128]; |
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| 73 | extern const moxie_opc_info_t moxie_form2_opc_info[4]; |
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| 74 | extern const moxie_opc_info_t moxie_form3_opc_info[16]; |
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