From 064b72ae4eb22336438288a9664a37c0dd07f4bc Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Tue, 6 Dec 2022 13:04:15 -0600
Subject: Implement gdbstub

---
 sim/start.S | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 sim/start.S

(limited to 'sim/start.S')

diff --git a/sim/start.S b/sim/start.S
new file mode 100644
index 0000000..7639513
--- /dev/null
+++ b/sim/start.S
@@ -0,0 +1,34 @@
+.section .interrupt_vector
+
+__reset:
+	b _start
+
+__undefined:
+	b undefined
+
+__swi:
+	b __data_abort
+
+__prefetch_abort:
+	b __prefetch_abort
+
+__data_abort:
+	b __data_abort
+
+__irq:
+	b __irq
+
+__fiq:
+	b __fiq
+
+.text
+
+.global _start
+_start:
+	ldr sp, =_stack_end
+	bl  reset
+	b   .
+
+.weak undefined
+undefined:
+	b undefined
-- 
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