diff options
Diffstat (limited to 'src/parser.y')
| -rw-r--r-- | src/parser.y | 80 |
1 files changed, 64 insertions, 16 deletions
diff --git a/src/parser.y b/src/parser.y index e63935a..5f7b4bb 100644 --- a/src/parser.y +++ b/src/parser.y @@ -14,20 +14,22 @@ void yyerror(const char *s); %union { int i_val; - float f_val; char *s_val; char *symbol; + char *modifier; + char *directive; } -%token <i_val> T_INTEGER -%token <f_val> T_FLOAT -%token <s_val> T_STRING -%token <symbol> T_SYMBOL -%token <symbol> T_INSTRUCTION -%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 T_ENDL +%token T_COMMA +%token T_OPENPAREN +%token T_CLOSEPAREN %% asm: statements @@ -39,48 +41,94 @@ statements: ; statement: - instructions + label + | directives + | instructions | T_ENDL ; +label: + T_LABEL T_ENDL + { + printf("Found Label: %s\n", $1); + }; + instructions: rb_type | i_type | s_type | u_type | j_type + | i_type_modifier + | s_type_modifier + | pseudo_type ; rb_type: - T_INSTRUCTION T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_SYMBOL T_ENDL + T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_SYMBOL T_ENDL { printf("Read instruction: %s(%s, %s, %s)\n", $1, $2, $4, $6); }; i_type: - T_INSTRUCTION T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_INTEGER T_ENDL + T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_COMMA T_INTEGER T_ENDL { printf("Read 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 + { + printf("Read instruction: %s(%s, %s, %s of %s)\n", $1, $2, $4, $6, $8); + }; + s_type: - T_INSTRUCTION T_SYMBOL T_COMMA T_INTEGER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL + T_SYMBOL T_SYMBOL T_COMMA T_INTEGER T_OPENPAREN T_SYMBOL T_CLOSEPAREN T_ENDL { printf("Read 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 + { + printf("Read instruction: %s(%s, %s of %s)\n", $1, $2, $4, $6); + }; + u_type: - T_INSTRUCTION T_SYMBOL T_COMMA T_INTEGER T_ENDL + T_SYMBOL T_SYMBOL T_COMMA T_INTEGER T_ENDL { printf("Read instruction: %s(%s, %d)\n", $1, $2, $4); }; j_type: - T_INSTRUCTION T_SYMBOL T_COMMA T_SYMBOL T_ENDL + T_SYMBOL T_SYMBOL T_COMMA T_SYMBOL T_ENDL { printf("Read instruction: %s(%s, %s)\n", $1, $2, $4); }; +pseudo_type: + T_SYMBOL T_SYMBOL T_ENDL + { + printf("Read Pseudo Instruction: %s(%s)\n", $1, $2); + }; + +directives: + directive_int + | directive_string + ; + +directive_int: + T_DIRECTIVE T_INTEGER T_ENDL + { + printf("Read directive %s %d\n", $1, $2); + }; + +directive_string: + T_DIRECTIVE T_STRING T_ENDL + { + printf("Read directive %s %s\n", $1, $2); + }; + %% void yyerror(const char *s) { |