From 1af7591e37d09ddcd734ea07d0e999cf61c8bc5e Mon Sep 17 00:00:00 2001
From: vetch <vetch97@gmail.com>
Date: Mon, 13 Jan 2020 12:40:38 +0100
Subject: Great Reorganisation, modify structure and makefile

---
 src/arm/PL1/kernel/interrupt_vector.S | 56 +++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 src/arm/PL1/kernel/interrupt_vector.S

(limited to 'src/arm/PL1/kernel/interrupt_vector.S')

diff --git a/src/arm/PL1/kernel/interrupt_vector.S b/src/arm/PL1/kernel/interrupt_vector.S
new file mode 100644
index 0000000..1ec80f7
--- /dev/null
+++ b/src/arm/PL1/kernel/interrupt_vector.S
@@ -0,0 +1,56 @@
+_interrupt_vectors:
+	b reset_handler_caller
+	b undef_handler_caller
+	b svc_handler_caller
+	b abort_handler_caller
+	b abort_handler_caller
+	b generic_handler_caller
+	b irq_handler_caller
+	b fiq_handler_caller
+	
+reset_handler_caller:
+	ldr sp, =_supervisor_stack_top
+	ldr r5, =reset_handler
+	bx r5
+	
+undef_handler_caller:
+	ldr sp, =_supervisor_stack_top
+	ldr r5, =undefined_instruction_vector
+	bx r5
+
+svc_handler_caller:
+	ldr sp, =_supervisor_stack_top
+	push {r0-r12, lr}
+	mov r0, sp
+	ldr r5, =supervisor_call_handler
+	blx r5
+	ldm sp!, {r0-r12, pc} ^
+	
+abort_handler_caller:
+	ldr sp, =_supervisor_stack_top
+	ldr r5, =abort_handler
+	bx r5
+
+generic_handler_caller:
+	ldr sp, =_supervisor_stack_top
+	ldr r5, =generic_handler
+	bx r5
+
+irq_handler_caller:
+	ldr sp, =_irq_stack_top
+	sub lr, #4
+	push {r0-r12, lr}
+	mov r0, sp
+	ldr r3, =irq_handler
+	blx r3
+	ldm sp!, {r0-r12, pc} ^
+
+fiq_handler_caller:
+	ldr sp, =_fiq_stack_top
+	ldr r5, =fiq_handler
+	bx r5
+
+irq:
+	mov sp, #0x8000
+	ldr r5, =abort_handler
+    subs pc,lr,#4
-- 
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