| 1 | /* $NetBSD: aicasm_insformat.h,v 1.1 2003/04/19 19:26:11 fvdl Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Instruction formats for the sequencer program downloaded to |
| 5 | * Aic7xxx SCSI host adapters |
| 6 | * |
| 7 | * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs. |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions, and the following disclaimer, |
| 15 | * without modification. |
| 16 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 17 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 18 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 19 | * including a substantially similar Disclaimer requirement for further |
| 20 | * binary redistribution. |
| 21 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 22 | * of any contributors may be used to endorse or promote products derived |
| 23 | * from this software without specific prior written permission. |
| 24 | * |
| 25 | * Alternatively, this software may be distributed under the terms of the |
| 26 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 27 | * Software Foundation. |
| 28 | * |
| 29 | * NO WARRANTY |
| 30 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 31 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 32 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 33 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 34 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 35 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 36 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 37 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 38 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 39 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 40 | * POSSIBILITY OF SUCH DAMAGES. |
| 41 | * |
| 42 | * $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_insformat.h,v 1.8 2002/11/27 07:06:43 scottl Exp $ |
| 43 | */ |
| 44 | |
| 45 | struct ins_format1 { |
| 46 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 47 | uint32_t immediate : 8, |
| 48 | source : 9, |
| 49 | destination : 9, |
| 50 | ret : 1, |
| 51 | opcode : 4, |
| 52 | parity : 1; |
| 53 | #else |
| 54 | uint32_t parity : 1, |
| 55 | opcode : 4, |
| 56 | ret : 1, |
| 57 | destination : 9, |
| 58 | source : 9, |
| 59 | immediate : 8; |
| 60 | #endif |
| 61 | }; |
| 62 | |
| 63 | struct ins_format2 { |
| 64 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 65 | uint32_t shift_control : 8, |
| 66 | source : 9, |
| 67 | destination : 9, |
| 68 | ret : 1, |
| 69 | opcode : 4, |
| 70 | parity : 1; |
| 71 | #else |
| 72 | uint32_t parity : 1, |
| 73 | opcode : 4, |
| 74 | ret : 1, |
| 75 | destination : 9, |
| 76 | source : 9, |
| 77 | shift_control : 8; |
| 78 | #endif |
| 79 | }; |
| 80 | |
| 81 | struct ins_format3 { |
| 82 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 83 | uint32_t immediate : 8, |
| 84 | source : 9, |
| 85 | address : 10, |
| 86 | opcode : 4, |
| 87 | parity : 1; |
| 88 | #else |
| 89 | uint32_t parity : 1, |
| 90 | opcode : 4, |
| 91 | address : 10, |
| 92 | source : 9, |
| 93 | immediate : 8; |
| 94 | #endif |
| 95 | }; |
| 96 | |
| 97 | union ins_formats { |
| 98 | struct ins_format1 format1; |
| 99 | struct ins_format2 format2; |
| 100 | struct ins_format3 format3; |
| 101 | uint8_t bytes[4]; |
| 102 | uint32_t integer; |
| 103 | }; |
| 104 | struct instruction { |
| 105 | union ins_formats format; |
| 106 | u_int srcline; |
| 107 | struct symbol *patch_label; |
| 108 | STAILQ_ENTRY(instruction) links; |
| 109 | }; |
| 110 | |
| 111 | #define AIC_OP_OR 0x0 |
| 112 | #define AIC_OP_AND 0x1 |
| 113 | #define AIC_OP_XOR 0x2 |
| 114 | #define AIC_OP_ADD 0x3 |
| 115 | #define AIC_OP_ADC 0x4 |
| 116 | #define AIC_OP_ROL 0x5 |
| 117 | #define AIC_OP_BMOV 0x6 |
| 118 | |
| 119 | #define AIC_OP_JMP 0x8 |
| 120 | #define AIC_OP_JC 0x9 |
| 121 | #define AIC_OP_JNC 0xa |
| 122 | #define AIC_OP_CALL 0xb |
| 123 | #define AIC_OP_JNE 0xc |
| 124 | #define AIC_OP_JNZ 0xd |
| 125 | #define AIC_OP_JE 0xe |
| 126 | #define AIC_OP_JZ 0xf |
| 127 | |
| 128 | /* Pseudo Ops */ |
| 129 | #define AIC_OP_SHL 0x10 |
| 130 | #define AIC_OP_SHR 0x20 |
| 131 | #define AIC_OP_ROR 0x30 |
| 132 | |