code

boot-lib.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdarg.h>
+
+
+int eprintf(const char format[], ...) {
+    va_list args;
+    va_start(args, format);
+    int ret = vfprintf(stderr, format, args);
+    va_end(args);
+    return ret;
+}
+
+void ungetchar(int ch) {
+    ungetc(ch, stdin);
+}
+
+int eof() {
+    return feof(stdin);
+}
+
+int CA_get(char array[], int index) {
+    return array[index];
+}
+
+void CA_set(char array[], int index, int value) {
+    array[index] = value;
+}
+
+// this may be unnecessary
+char* CA_offset(char array[], int offset) {
+    return array + offset;
+}

boot-lib.h

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// std
+int printf(const char* format, ...);
+int getchar();
+int putchar(int ch);
+int strcmp(const char* s1, const char* s2);
+void exit(int status);
+
+// ext
+void ungetchar(int ch);
+int eof();
+int CA_get(char array[], int index);
+void CA_set(char array[], int index, int value);
+char* CA_offset(char array[], int offset);
+int eprintf(const char* format, ...);