| /* |
| * Copyright (c) 2017 Rob Clark <robdclark@gmail.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| %{ |
| #include <stdlib.h> |
| #include "parser.h" |
| #include "asm.h" |
| |
| #define YY_NO_INPUT |
| #define YY_NO_UNPUT |
| |
| #define TOKEN(t) (yylval.tok = t) |
| extern YYSTYPE yylval; |
| |
| %} |
| |
| %option noyywrap |
| |
| %% |
| "\n" yylineno++; |
| [ \t] ; /* ignore whitespace */ |
| ";"[^\n]*"\n" yylineno++; /* ignore comments */ |
| [1-9][0-9]* yylval.num = strtoul(yytext, NULL, 0); return T_INT; |
| "0x"[0-9a-fA-F]* yylval.num = strtoul(yytext, NULL, 0); return T_HEX; |
| |
| "$"[0-9a-fA-F][0-9a-fA-F] yylval.num = parse_reg(yytext); return T_REGISTER; |
| "$"[a-zA-Z][a-zA-Z0-9]* yylval.num = parse_reg(yytext); return T_REGISTER; |
| "b"[0-9][0-9]* yylval.num = parse_bit(yytext); return T_BIT; |
| "@"[a-zA-Z_][a-zA-Z0-9_]* yylval.num = parse_control_reg(yytext); return T_CONTROL_REG; |
| "#"[a-zA-Z_][a-zA-Z0-9_]* yylval.str = strdup(yytext+1); return T_LABEL_REF; /* label reference */ |
| [a-zA-Z_][a-zA-Z0-9_]*":" yylval.str = parse_label_decl(yytext); return T_LABEL_DECL; /* label declaration */ |
| "["[0-9a-fA-F][0-9a-fA-F]*"]" yylval.num = parse_literal(yytext); return T_LITERAL; |
| |
| /* instructions: */ |
| "nop" return TOKEN(T_OP_NOP); |
| "add" return TOKEN(T_OP_ADD); |
| "addhi" return TOKEN(T_OP_ADDHI); |
| "sub" return TOKEN(T_OP_SUB); |
| "subhi" return TOKEN(T_OP_SUBHI); |
| "and" return TOKEN(T_OP_AND); |
| "or" return TOKEN(T_OP_OR); |
| "xor" return TOKEN(T_OP_XOR); |
| "not" return TOKEN(T_OP_NOT); |
| "shl" return TOKEN(T_OP_SHL); |
| "ushr" return TOKEN(T_OP_USHR); |
| "ishr" return TOKEN(T_OP_ISHR); |
| "rot" return TOKEN(T_OP_ROT); |
| "mul8" return TOKEN(T_OP_MUL8); |
| "min" return TOKEN(T_OP_MIN); |
| "max" return TOKEN(T_OP_MAX); |
| "cmp" return TOKEN(T_OP_CMP); |
| "msb" return TOKEN(T_OP_MSB); |
| "mov" return TOKEN(T_OP_MOV); |
| "cwrite" return TOKEN(T_OP_CWRITE); |
| "cread" return TOKEN(T_OP_CREAD); |
| "store" return TOKEN(T_OP_STORE); |
| "load" return TOKEN(T_OP_LOAD); |
| "brne" return TOKEN(T_OP_BRNE); |
| "breq" return TOKEN(T_OP_BREQ); |
| "ret" return TOKEN(T_OP_RET); |
| "iret" return TOKEN(T_OP_IRET); |
| "call" return TOKEN(T_OP_CALL); |
| "jump" return TOKEN(T_OP_JUMP); |
| "waitin" return TOKEN(T_OP_WAITIN); |
| "preemptleave" return TOKEN(T_OP_PREEMPTLEAVE); |
| "setsecure" return TOKEN(T_OP_SETSECURE); |
| "<<" return TOKEN(T_LSHIFT); |
| "(rep)" return TOKEN(T_REP); |
| |
| "," return ','; |
| "[" return '['; |
| "]" return ']'; |
| "+" return '+'; |
| |
| . fprintf(stderr, "error at line %d: Unknown token: %s\n", yyget_lineno(), yytext); yyterminate(); |
| |
| %% |