1 files changed, 23 insertions, 0 deletions
diff --git a/pk/boot.S b/pk/boot.S
new file mode 100644
index 0000000..0619671
--- /dev/null
+++ b/pk/boot.S
@@ -0,0 +1,23 @@
+#include "pcr.h"
+
+	.section boottext
+	.global __start
+	.ent    __start
+__start:
+
+	# set up SR
+	li		$t0, SR_S | SR_PS | SR_ET | SR_UX | SR_KX
+	mtpcr	$t0, $0
+
+	# set up trap table
+	la		$t0, trap_table
+	mtpcr	$t0, $3
+
+	# set up stack
+	la		$sp,stack_top-64
+
+	# call into kernel
+	la		$t0, boot
+	jr		$t0
+
+	.end    __start