1 files changed, 47 insertions, 0 deletions
diff --git a/stm32f103/src/init_low.s b/stm32f103/src/init_low.s
new file mode 100644
index 0000000..b666ed4
--- /dev/null
+++ b/stm32f103/src/init_low.s
@@ -0,0 +1,47 @@
+.syntax unified
+.cpu cortex-m3
+.thumb
+
+.section .text
+
+.thumb_func
+.global _Reset_Handler
+_Reset_Handler:
+    bl init_high
+    b halt
+
+.thumb_func
+.global halt
+halt:
+    b .
+
+.thumb_func
+.global NMI_Handler
+NMI_Handler:
+    b halt
+
+.thumb_func
+.global HardFault_Handler
+HardFault_Handler:
+    tst lr, #4
+    ite eq
+    mrseq r0, msp
+    mrsne r0, psp
+    b HardFault_Handler_C
+
+.thumb_func
+.global MemManage_Handler
+MemManage_Handler:
+    b halt
+
+.thumb_func
+.global BusFault_Handler
+BusFault_Handler:
+    b halt
+
+.thumb_func
+.global UsageFault_Handler
+UsageFault_Handler:
+    b halt
+
+.end