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(uxnasm)Check for output size after resolving symbols

This commit is contained in:
Devine Lu Linvega 2024-03-28 09:30:23 -07:00
parent fe414183b0
commit ea8f512fcd
1 changed files with 2 additions and 4 deletions
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6
src/uxnasm.c
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@ -377,7 +377,7 @@ resolve(void)
}
l->refs++;
}
return 1;
return !length ? error_top("Assembly", "Output rom is empty.") : 1;
}
static void
@ -424,10 +424,8 @@ main(int argc, char *argv[])
scpy("on-reset", scope, 0x40);
if(argc == 1) return error_top("usage", "uxnasm [-v] input.tal output.rom");
if(scmp(argv[1], "-v", 2)) return !fprintf(stdout, "Uxnasm - Uxntal Assembler, 28 Mar 2024.\n");
if(!assemble(argv[1])) return !error_top("Assembly", "Failed to assemble rom.");
if(!resolve()) return !error_top("Assembly", "Failed to resolve symbols.");
if(!assemble(argv[1]) || !resolve()) return !error_top("Assembly", "Failed to assemble rom.");
if(!(dst = fopen(argv[2], "wb"))) return !error_top("Invalid Output", argv[2]);
if(length <= PAGE) return !error_top("Assembly", "Output rom is empty.");
review(argv[2]);
fwrite(data + PAGE, length - PAGE, 1, dst);
writesym(argv[2]);