smaller stack; complete vector table

1 files changed, 6 insertions, 2 deletions

diff --git a/src/interrupt.zig b/src/interrupt.zig
index 024efc5..f00fa22 100644
--- a/src/interrupt.zig
+++ b/src/interrupt.zig
@@ -1,8 +1,10 @@
-const vector_table_type = [256] *const fn () void;
+extern const init_vector_table: [2]u32;
+
+const vector_table_type = [128] *const fn () void; // up to 256
 var vector_table: vector_table_type align(256) = undefined;
 var vtor: **volatile vector_table_type = @ptrFromInt(0xE000ED08);
 
-pub const vector = enum(u8) {
+pub const vector = enum(u7) {
     NMI = 2,
     HardFault,
     MemManage,
@@ -20,6 +22,8 @@ pub const vector = enum(u8) {
 };
 
 pub fn initialize() void {
+    vector_table[0] = @ptrFromInt(init_vector_table[0]);
+    vector_table[1] = @ptrFromInt(init_vector_table[1]);
     register(.NMI, nmi);
     register(.HardFault, hardfault);
     register(.MemManage, memmanage);