--- /dev/null
+#ifndef TRAPS_H
+#define TRAPS_H
+
+/* Trap vectors from 15-410 basis code. */
+
+#define T_DIVIDE_ERROR 0
+#define T_DEBUG 1
+#define T_NMI 2
+#define T_INT3 3
+#define T_OVERFLOW 4
+#define T_OUT_OF_BOUNDS 5
+#define T_INVALID_OPCODE 6
+#define T_NO_FPU 7
+#define T_DOUBLE_FAULT 8
+#define T_FPU_FAULT 9
+#define T_INVALID_TSS 10
+#define T_SEGMENT_NOT_PRESENT 11
+#define T_STACK_FAULT 12
+#define T_GENERAL_PROTECTION 13
+#define T_PAGE_FAULT 14
+#define T_FLOATING_POINT_ERROR 16
+#define T_ALIGNMENT_CHECK 17
+#define T_MACHINE_CHECK 18
+
+void traps_install(void);
+
+#endif /* TRAPS_H */