1 files changed, 10 insertions, 0 deletions
diff --git a/lib/cm4.h b/lib/cm4.h
new file mode 100644
index 0000000..7c1c774
--- /dev/null
+++ b/lib/cm4.h
@@ -0,0 +1,10 @@
+#ifndef LIB_CM4_H
+#define LIB_CM4_H
+
+#define CLRPEND(n) REG_32(0xE000E280 + 4 * (n))
+#define ISR_CLRPEND(i) CLRPEND((i) / 32) = BV((i) % 32);
+
+#define SETENA(n) REG_32(0xE000E100 + 4 * (n))
+#define ISR_SETENA(i) SETENA((i) / 32) = BV((i) % 32);
+
+#endif /* LIB_CM4_H */