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Added assembler check for string outside Data Segment.

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Anachronaut
2026-08-17 20:10:33 -04:00
parent 9e3425d34b
commit a842c884e8
7 changed files with 60 additions and 10 deletions
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Source/Assembler/firstPass.c
+22 -2
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@@ -330,9 +330,29 @@ int loadFile(intermediateElement **intermediateArray, char *fileName, int *inter
printf(" File: %s at line %d.\n", fileName, lineNumber);
exit(1);
}
// A string, which only the Data Segment can hold. Nothing below this line looks at
// strings, so without this they would fall past every check and out the bottom,
// and a string written anywhere else would assemble to nothing at all and say so
// to nobody.
} else if ((*intermediateArray)[*intermediateIndex].type == STRING) {
if (status == PROGRAM) {
fprintf(stderr, RED "Error: A string cannot go in the Program Segment.\n"
" Strings live in Data Memory, which is the only memory an instruction\n"
" can read. A string in Program Memory could not be reached even by the\n"
" program holding it, except through the memory controller.\n" RESET);
printf(" File: %s at line %d.\n", fileName, lineNumber);
printf(" The string: \"%s\"\n", (*intermediateArray)[*intermediateIndex].token);
printf(" Move it below a #Data line.\n");
exit(1);
}
if (status != DATA) {
fprintf(stderr, RED "Error: Attempting to write a string to nowhere!\n Did you forget to use the #Data keyword?\n" RESET);
printf(" File: %s at line %d.\n", fileName, lineNumber);
printf(" The string: \"%s\"\n", (*intermediateArray)[*intermediateIndex].token);
exit(1);
}
// Finally, check if it's a label or label definition.
// First, make sure it hasn't already been marked as a string literal.
} else if ((*intermediateArray)[*intermediateIndex].type != STRING) {
} else {
if (checkIfLabel(&(*intermediateArray)[*intermediateIndex])) {
if (status == NOWHERE) {
fprintf(stderr, RED "Error: Attempting to create or use a label nowhere!\n Did you forget to use the #Program or #Data keyword?\n" RESET);