| 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 | * This program generates the semantics file that is processed by |
| 20 | * the do_qemu.py script. We use the C preporcessor to manipulate the |
| 21 | * files imported from the Hexagon architecture library. |
| 22 | */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #define STRINGIZE(X) #X |
| 26 | |
| 27 | int main(int argc, char *argv[]) |
| 28 | { |
| 29 | FILE *outfile; |
| 30 | |
| 31 | if (argc != 2) { |
| 32 | fprintf(stderr, "Usage: gen_semantics ouptputfile\n"); |
| 33 | return 1; |
| 34 | } |
| 35 | outfile = fopen(argv[1], "w"); |
| 36 | if (outfile == NULL) { |
| 37 | fprintf(stderr, "Cannot open %s for writing\n", argv[1]); |
| 38 | return 1; |
| 39 | } |
| 40 | |
| 41 | /* |
| 42 | * Process the instruction definitions |
| 43 | * Scalar core instructions have the following form |
| 44 | * Q6INSN(A2_add,"Rd32=add(Rs32,Rt32)",ATTRIBS(), |
| 45 | * "Add 32-bit registers", |
| 46 | * { RdV=RsV+RtV;}) |
| 47 | * HVX instructions have the following form |
| 48 | * EXTINSN(V6_vinsertwr, "Vx32.w=vinsert(Rt32)", |
| 49 | * ATTRIBS(A_EXTENSION,A_CVI,A_CVI_VX), |
| 50 | * "Insert Word Scalar into Vector", |
| 51 | * VxV.uw[0] = RtV;) |
| 52 | */ |
| 53 | #define Q6INSN(TAG, BEH, ATTRIBS, DESCR, SEM) \ |
| 54 | do { \ |
| 55 | fprintf(outfile, "SEMANTICS( \\\n" \ |
| 56 | " \"%s\", \\\n" \ |
| 57 | " %s, \\\n" \ |
| 58 | " \"\"\"%s\"\"\" \\\n" \ |
| 59 | ")\n", \ |
| 60 | #TAG, STRINGIZE(BEH), STRINGIZE(SEM)); \ |
| 61 | fprintf(outfile, "ATTRIBUTES( \\\n" \ |
| 62 | " \"%s\", \\\n" \ |
| 63 | " \"%s\" \\\n" \ |
| 64 | ")\n", \ |
| 65 | #TAG, STRINGIZE(ATTRIBS)); \ |
| 66 | } while (0); |
| 67 | #define EXTINSN(TAG, BEH, ATTRIBS, DESCR, SEM) \ |
| 68 | do { \ |
| 69 | fprintf(outfile, "SEMANTICS( \\\n" \ |
| 70 | " \"%s\", \\\n" \ |
| 71 | " %s, \\\n" \ |
| 72 | " \"\"\"%s\"\"\" \\\n" \ |
| 73 | ")\n", \ |
| 74 | #TAG, STRINGIZE(BEH), STRINGIZE(SEM)); \ |
| 75 | fprintf(outfile, "ATTRIBUTES( \\\n" \ |
| 76 | " \"%s\", \\\n" \ |
| 77 | " \"%s\" \\\n" \ |
| 78 | ")\n", \ |
| 79 | #TAG, STRINGIZE(ATTRIBS)); \ |
| 80 | } while (0); |
| 81 | #include "imported/allidefs.def" |
| 82 | #undef Q6INSN |
| 83 | #undef EXTINSN |
| 84 | |
| 85 | /* |
| 86 | * Process the macro definitions |
| 87 | * Macros definitions have the following form |
| 88 | * DEF_MACRO( |
| 89 | * fLSBNEW0, |
| 90 | * predlog_read(thread,0), |
| 91 | * () |
| 92 | * ) |
| 93 | * The important part here is the attributes. Whenever an instruction |
| 94 | * invokes a macro, we add the macro's attributes to the instruction. |
| 95 | */ |
| 96 | #define DEF_MACRO(MNAME, BEH, ATTRS) \ |
| 97 | fprintf(outfile, "MACROATTRIB( \\\n" \ |
| 98 | " \"%s\", \\\n" \ |
| 99 | " \"\"\"%s\"\"\", \\\n" \ |
| 100 | " \"%s\" \\\n" \ |
| 101 | ")\n", \ |
| 102 | #MNAME, STRINGIZE(BEH), STRINGIZE(ATTRS)); |
| 103 | #include "imported/macros.def" |
| 104 | #undef DEF_MACRO |
| 105 | |
| 106 | /* |
| 107 | * Process the macros for HVX |
| 108 | */ |
| 109 | #define DEF_MACRO(MNAME, BEH, ATTRS) \ |
| 110 | fprintf(outfile, "MACROATTRIB( \\\n" \ |
| 111 | " \"%s\", \\\n" \ |
| 112 | " \"\"\"%s\"\"\", \\\n" \ |
| 113 | " \"%s\" \\\n" \ |
| 114 | ")\n", \ |
| 115 | #MNAME, STRINGIZE(BEH), STRINGIZE(ATTRS)); |
| 116 | #include "imported/allext_macros.def" |
| 117 | #undef DEF_MACRO |
| 118 | |
| 119 | fclose(outfile); |
| 120 | return 0; |
| 121 | } |