fix: reminants from larger first pass output show up in smaller second pass output

Author: msaarna

7800bas.c

@@ -65,7 +65,7 @@ extern int changedmaholescalled;
 int maxpasses = 2;
 
 #define PREPROC_BUFFER_SIZE (256 * 1024) // 256KB buffer for preprocessed file
-static char *preproc_buffer = NULL;
+char *preproc_buffer = NULL;
 
 #define BASIC_VERSION_INFO "7800basic v0.39"
 
@@ -451,22 +451,18 @@ int main (int argc, char *argv[])
 
 	prout ("7800basic compilation complete.\n");
 	freemem (deallocate_mem);
+	// Explicitly close the main assembly file at the end of each pass.
+	if (main_asm_fp != NULL) {
+	    fclose(main_asm_fp);
+	    main_asm_fp = NULL;
+	    current_output_fp = NULL;
+	}
     }
 
     header_write (header, filename);
     create_includes (includes_file);
 
     lastrites ();
 
-    // Final cleanup of the preprocessed file descriptor and its buffer
-    if (preprocessedfd != NULL && preprocessedfd != stdin) {
-        fclose(preprocessedfd);
-    }
-
-    if (preproc_buffer != NULL) {
-        free(preproc_buffer);
-        preproc_buffer = NULL;
-    }
-
     return 0;
 }

statements.c

@@ -32,6 +32,7 @@ char savelinesname[MAXINCBASIC][MAXINCBASIC];
 extern char stdoutfilename[256];
 extern FILE *preprocessedfd;
 extern FILE *main_asm_fp;
+extern char *preproc_buffer;
 extern FILE *current_output_fp;
 extern char backupname[256];
 extern int maxpasses;
@@ -12373,17 +12374,16 @@ void lastrites()
     remove("7800hole.1.asm");
     remove("7800hole.2.asm");
 
-    // Close all our managed file pointers
-    if (current_output_fp != NULL) 
+    // Final cleanup of the preprocessed file descriptor and its buffer.
+    if (preprocessedfd != NULL && preprocessedfd != stdin) 
     {
-        fflush(current_output_fp);
-        if (current_output_fp != main_asm_fp)
-            fclose(current_output_fp);
-        current_output_fp = NULL;
+        fclose(preprocessedfd);
+        preprocessedfd = NULL;
     }
-    if (main_asm_fp != NULL) 
+
+    if (preproc_buffer != NULL) 
     {
-        fclose(main_asm_fp);
-        main_asm_fp = NULL;
+        free(preproc_buffer);
+        preproc_buffer = NULL;
     }
 }