glm94/assm-test
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Got the Parser to, so far, correctly (minus memory leaks) parse out and report errors with opcodes and their parameters.

Browse Source
This commit is contained in:
glm94
2022-05-12 23:16:02 -05:00
parent 2de3538d80
commit 5265666178
1 changed files with 13 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/parser.c
+13 -5
View File
@@ -40,13 +40,14 @@ void ParseTokens(List* tokens) {
case IDENTIFIER:
case LABEL:
AddSymbol(t, ProgramCounter);
AdvanceParser();
break;
case STRING:
ProgramCounter += strlen(t->lexeme);
break;
case NUMBER: //Number's will be 2 bytes
ProgramCounter += 2;
break;
//case NUMBER: //Number's will be 2 bytes
// ProgramCounter += 2;
// break;
default: //Instructions are 1 byte wide.
if (t->token_class == Opcode) {
ProgramCounter++;
@@ -71,11 +72,15 @@ void HandleOperation(void) {
AdvanceParser();
if (inst->parameter_one && PeekToken()->token_class == 1) {
if (inst->parameter_one == None) return;
if (inst->parameter_one && PeekToken()->token_class > 0) {
printf("Matched '%s'\n", PeekToken()->lexeme);
AdvanceParser();
}
if (inst->parameter_two == None) return;
if (PeekToken()->type == COMMA) {
AdvanceParser();
} else {
@@ -84,9 +89,12 @@ void HandleOperation(void) {
return;
}
if (inst->parameter_two && PeekToken()->token_class == 1) {
if (inst->parameter_two && PeekToken()->token_class > 0) {
printf("Matched 2 '%s'\n", PeekToken()->lexeme);
AdvanceParser();
} else {
printf("Failed to match %s (class: %d)\n", PeekToken()->lexeme, PeekToken()->token_class);
printf("Inst %s (class: %x)\n", inst->lexeme, inst->parameter_two);
}
}