1 /* 2 * Instruction formats for the sequencer program downloaded to 3 * Aic7xxx SCSI host adapters 4 * 5 * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU Public License ("GPL"). 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: //depot/src/aic7xxx/aicasm/aicasm_insformat.h#4 $ 33 * 34 * $FreeBSD$ 35 */ 36 37 #if linux 38 #include <endian.h> 39 #else 40 #include <machine/endian.h> 41 #endif 42 43 struct ins_format1 { 44 #if BYTE_ORDER == LITTLE_ENDIAN 45 uint32_t immediate : 8, 46 source : 9, 47 destination : 9, 48 ret : 1, 49 opcode : 4, 50 parity : 1; 51 #else 52 uint32_t parity : 1, 53 opcode : 4, 54 ret : 1, 55 destination : 9, 56 source : 9, 57 immediate : 8; 58 #endif 59 }; 60 61 struct ins_format2 { 62 #if BYTE_ORDER == LITTLE_ENDIAN 63 uint32_t shift_control : 8, 64 source : 9, 65 destination : 9, 66 ret : 1, 67 opcode : 4, 68 parity : 1; 69 #else 70 uint32_t parity : 1, 71 opcode : 4, 72 ret : 1, 73 destination : 9, 74 source : 9, 75 shift_control : 8; 76 #endif 77 }; 78 79 struct ins_format3 { 80 #if BYTE_ORDER == LITTLE_ENDIAN 81 uint32_t immediate : 8, 82 source : 9, 83 address : 10, 84 opcode : 4, 85 parity : 1; 86 #else 87 uint32_t parity : 1, 88 opcode : 4, 89 address : 10, 90 source : 9, 91 immediate : 8; 92 #endif 93 }; 94 95 union ins_formats { 96 struct ins_format1 format1; 97 struct ins_format2 format2; 98 struct ins_format3 format3; 99 uint8_t bytes[4]; 100 uint32_t integer; 101 }; 102 struct instruction { 103 union ins_formats format; 104 u_int srcline; 105 struct symbol *patch_label; 106 STAILQ_ENTRY(instruction) links; 107 }; 108 109 #define AIC_OP_OR 0x0 110 #define AIC_OP_AND 0x1 111 #define AIC_OP_XOR 0x2 112 #define AIC_OP_ADD 0x3 113 #define AIC_OP_ADC 0x4 114 #define AIC_OP_ROL 0x5 115 #define AIC_OP_BMOV 0x6 116 117 #define AIC_OP_JMP 0x8 118 #define AIC_OP_JC 0x9 119 #define AIC_OP_JNC 0xa 120 #define AIC_OP_CALL 0xb 121 #define AIC_OP_JNE 0xc 122 #define AIC_OP_JNZ 0xd 123 #define AIC_OP_JE 0xe 124 #define AIC_OP_JZ 0xf 125 126 /* Pseudo Ops */ 127 #define AIC_OP_SHL 0x10 128 #define AIC_OP_SHR 0x20 129 #define AIC_OP_ROR 0x30 130