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