1 /* 2 * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 /* 19 * opcodes.c 20 * 21 * data tables generated automatically 22 * Maybe some functions too 23 */ 24 25 #include "qemu/osdep.h" 26 #include "attribs.h" 27 #include "decode.h" 28 29 #define VEC_DESCR(A, B, C) DESCR(A, B, C) 30 #define DONAME(X) #X 31 32 const char * const opcode_names[] = { 33 #define OPCODE(IID) DONAME(IID) 34 #include "opcodes_def_generated.h.inc" 35 NULL 36 #undef OPCODE 37 }; 38 39 const char * const opcode_reginfo[] = { 40 #define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ 41 #define REGINFO(TAG, REGINFO, RREGS, WREGS) REGINFO, 42 #include "op_regs_generated.h.inc" 43 NULL 44 #undef REGINFO 45 #undef IMMINFO 46 }; 47 48 49 const char * const opcode_rregs[] = { 50 #define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ 51 #define REGINFO(TAG, REGINFO, RREGS, WREGS) RREGS, 52 #include "op_regs_generated.h.inc" 53 NULL 54 #undef REGINFO 55 #undef IMMINFO 56 }; 57 58 59 const char * const opcode_wregs[] = { 60 #define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ 61 #define REGINFO(TAG, REGINFO, RREGS, WREGS) WREGS, 62 #include "op_regs_generated.h.inc" 63 NULL 64 #undef REGINFO 65 #undef IMMINFO 66 }; 67 68 const char * const opcode_short_semantics[] = { 69 #define DEF_SHORTCODE(TAG, SHORTCODE) [TAG] = #SHORTCODE, 70 #include "shortcode_generated.h.inc" 71 #undef DEF_SHORTCODE 72 NULL 73 }; 74 75 DECLARE_BITMAP(opcode_attribs[XX_LAST_OPCODE], A_ZZ_LASTATTRIB); 76 77 static void init_attribs(int tag, ...) 78 { 79 va_list ap; 80 int attr; 81 va_start(ap, tag); 82 while ((attr = va_arg(ap, int)) != 0) { 83 set_bit(attr, opcode_attribs[tag]); 84 } 85 } 86 87 const OpcodeEncoding opcode_encodings[] = { 88 #define DEF_ENC32(OPCODE, ENCSTR) \ 89 [OPCODE] = { .encoding = ENCSTR }, 90 91 #define DEF_ENC_SUBINSN(OPCODE, CLASS, ENCSTR) \ 92 [OPCODE] = { .encoding = ENCSTR, .enc_class = CLASS }, 93 94 #define DEF_EXT_ENC(OPCODE, CLASS, ENCSTR) \ 95 [OPCODE] = { .encoding = ENCSTR, .enc_class = CLASS }, 96 97 #include "imported/encode.def" 98 99 #undef DEF_ENC32 100 #undef DEF_ENC_SUBINSN 101 #undef DEF_EXT_ENC 102 }; 103 104 void opcode_init(void) 105 { 106 init_attribs(0, 0); 107 108 #define ATTRIBS(...) , ## __VA_ARGS__, 0 109 #define OP_ATTRIB(TAG, ARGS) init_attribs(TAG ARGS); 110 #include "op_attribs_generated.h.inc" 111 #undef OP_ATTRIB 112 #undef ATTRIBS 113 114 decode_init(); 115 } 116 117 118 #define NEEDLE "IMMEXT(" 119 120 int opcode_which_immediate_is_extended(Opcode opcode) 121 { 122 const char *p; 123 124 g_assert(opcode < XX_LAST_OPCODE); 125 g_assert(GET_ATTRIB(opcode, A_EXTENDABLE)); 126 127 p = opcode_short_semantics[opcode]; 128 p = strstr(p, NEEDLE); 129 g_assert(p); 130 p += strlen(NEEDLE); 131 while (isspace(*p)) { 132 p++; 133 } 134 /* lower is always imm 0, upper always imm 1. */ 135 if (islower(*p)) { 136 return 0; 137 } else if (isupper(*p)) { 138 return 1; 139 } else { 140 g_assert_not_reached(); 141 } 142 } 143