diff options
Diffstat (limited to 'src/parser.y')
| -rw-r--r-- | src/parser.y | 89 |
1 files changed, 59 insertions, 30 deletions
diff --git a/src/parser.y b/src/parser.y index 5f7b4bb..6998ddd 100644 --- a/src/parser.y +++ b/src/parser.y @@ -4,7 +4,7 @@ #include <stdbool.h> #include <getopt.h> -size_t line_number = 1; +size_t line_number = 0; extern int yylex(); extern int yyparse(); @@ -18,18 +18,22 @@ void yyerror(const char *s); char *symbol; char *modifier; char *directive; + char *reg; + char *instruction; } -%token <i_val> T_INTEGER -%token <s_val> T_STRING -%token <symbol> T_SYMBOL -%token <directive> T_DIRECTIVE -%token <symbol> T_LABEL -%token <modifier> T_MODIFIER -%token T_ENDL -%token T_COMMA -%token T_OPENPAREN -%token T_CLOSEPAREN +%token <i_val> T_INTEGER +%token <s_val> T_STRING +%token <symbol> T_SYMBOL +%token <directive> T_DIRECTIVE +%token <symbol> T_LABEL +%token <modifier> T_MODIFIER +%token <reg> T_REGISTER +%token <instruction> T_INSTRUCTION +%token T_ENDL +%token T_COMMA +%token T_OPENPAREN +%token T_CLOSEPAREN %% asm: statements @@ -54,8 +58,9 @@ label: }; instructions: - rb_type - | i_type + r_type + | ib_type_symbol + | i_type_integer | s_type | u_type | j_type @@ -64,50 +69,74 @@ instructions: | pseudo_type ; -rb_type: - T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_SYMBOL T_ENDL +r_type: + T_INSTRUCTION T_REGISTER T_COMMA T_REGISTER T_COMMA T_REGISTER T_ENDL { - printf("Read instruction: %s(%s, %s, %s)\n", $1, $2, $4, $6); + printf("Read R-Type instruction: %s(%s, %s, %s)\n", $1, $2, $4, $6); }; -i_type: - T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_INTEGER T_ENDL +ib_type_symbol: + T_INSTRUCTION T_REGISTER T_COMMA T_REGISTER T_COMMA T_SYMBOL T_ENDL { - printf("Read instruction: %s(%s, %s, %d)\n", $1, $2, $4, $6); + printf("Read I/B-Type instruction: %s(%s, %s, %s)\n", $1, $2, $4, $6); + }; + +i_type_integer: + T_INSTRUCTION T_REGISTER T_COMMA T_REGISTER T_COMMA T_INTEGER T_ENDL + { + printf("Read I-Type instruction: %s(%s, %s, %d)\n", $1, $2, $4, $6); }; i_type_modifier: - T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_MODIFIER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL + T_INSTRUCTION T_REGISTER T_COMMA T_REGISTER T_COMMA T_MODIFIER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL { - printf("Read instruction: %s(%s, %s, %s of %s)\n", $1, $2, $4, $6, $8); + printf("Read I-Type instruction: %s(%s, %s, %s of %s)\n", $1, $2, $4, $6, $8); }; s_type: - T_SYMBOL T_SYMBOL T_COMMA T_INTEGER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL + T_INSTRUCTION T_REGISTER T_COMMA T_INTEGER T_OPENPAREN T_REGISTER T_CLOSEPAREN T_ENDL { - printf("Read instruction: %s(%s, %s + %d)\n", $1, $2, $6, $4); + printf("Read S-Type instruction: %s(%s, %s + %d)\n", $1, $2, $6, $4); }; s_type_modifier: - T_SYMBOL T_SYMBOL T_COMMA T_MODIFIER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL + T_INSTRUCTION T_REGISTER T_COMMA T_MODIFIER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL { - printf("Read instruction: %s(%s, %s of %s)\n", $1, $2, $4, $6); + printf("Read S-Type instruction: %s(%s, %s of %s)\n", $1, $2, $4, $6); }; u_type: - T_SYMBOL T_SYMBOL T_COMMA T_INTEGER T_ENDL + T_INSTRUCTION T_REGISTER T_COMMA T_INTEGER T_ENDL { - printf("Read instruction: %s(%s, %d)\n", $1, $2, $4); + printf("Read U-Type instruction: %s(%s, %d)\n", $1, $2, $4); }; j_type: - T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_ENDL + T_INSTRUCTION T_REGISTER T_COMMA T_SYMBOL T_ENDL { - printf("Read instruction: %s(%s, %s)\n", $1, $2, $4); + printf("Read J-Type instruction: %s(%s, %s)\n", $1, $2, $4); }; pseudo_type: - T_SYMBOL T_SYMBOL T_ENDL + pseudo_one_reg + | pseudo_two_reg + | pseudo_one_label + ; + +pseudo_one_reg: + T_INSTRUCTION T_REGISTER T_ENDL + { + printf("Read Pseudo Instruction: %s(%s)\n", $1, $2); + }; + +pseudo_two_reg: + T_INSTRUCTION T_REGISTER T_COMMA T_REGISTER T_ENDL + { + printf("Read Pseudo Instruction: %s(%s, %s)\n", $1, $2, $4); + }; + +pseudo_one_label: + T_INSTRUCTION T_SYMBOL T_ENDL { printf("Read Pseudo Instruction: %s(%s)\n", $1, $2); }; |