1 files changed, 40 insertions, 0 deletions
diff --git a/src/interrupt.zig b/src/interrupt.zig
new file mode 100644
index 0000000..60faec6
--- /dev/null
+++ b/src/interrupt.zig
@@ -0,0 +1,40 @@
+var vector_table: [256] *const fn () void = undefined;
+var vtor: *u32 = @ptrFromInt(0xE000ED08);
+
+pub const vector = enum(u8) {
+    NMI = 2,
+    HardFault,
+    MemManage,
+    BusFault,
+    UsageFault,
+    rsvd7,
+    rsvd8,
+    rsvd9,
+    rsvd10,
+    SVCall,
+    DebugMonitor,
+    rsvd13,
+    PendSV,
+    SysTick,
+};
+
+pub fn initialize() void {
+    register(.NMI, nmi);
+    register(.HardFault, hardfault);
+    register(.MemManage, memmanage);
+    register(.BusFault, busfault);
+    register(.UsageFault, usagefault);
+
+    vtor.* = @as(u32, @intFromPtr(&vector_table));
+}
+
+pub fn register(index: vector, handler: *const fn () void) void {
+    vector_table[@intFromEnum(index)] = handler;
+}
+
+fn nmi() void { while (true) {} }
+fn hardfault() void { while (true) {} }
+fn memmanage() void { while (true) {} }
+fn busfault() void { while (true) {} }
+fn usagefault() void { while (true) {} }
+