From b0a6351d52af8bdf6fa9cca0d313df323249a520 Mon Sep 17 00:00:00 2001
From: vetch <vetch97@gmail.com>
Date: Tue, 10 Dec 2019 15:32:16 +0100
Subject: tmp kernel

---
 interrupts.c | 10 ++++++++++
 interrupts.h |  1 +
 kernel.c     |  1 +
 3 files changed, 12 insertions(+)

diff --git a/interrupts.c b/interrupts.c
index 3dc3d6f..79007cb 100644
--- a/interrupts.c
+++ b/interrupts.c
@@ -12,4 +12,14 @@ void __attribute__((interrupt("UNDEF"))) undefined_instruction_vector(void)
     {
         /* Do Nothing! */
     }
+}
+
+__irq void IRQHandler (void)
+{
+    volatile unsigned int *base = (unsigned int *) 0x80000000;
+    if (*base == 1)          // which interrupt was it?
+    {
+        uart_putc(*base);     // process the interrupt
+    }
+    *(base+1) = 0;           // clear the interrupt
 }
\ No newline at end of file
diff --git a/interrupts.h b/interrupts.h
index 9dacc42..561df70 100644
--- a/interrupts.h
+++ b/interrupts.h
@@ -32,6 +32,7 @@ typedef struct {
     volatile uint32_t Disable_Basic_IRQs;
 } rpi_irq_controller_t;
 
+
 extern rpi_irq_controller_t* RPI_GetIrqController(void);
 
 #endif //RPI_MMU_EXAMPLE_INTERRUPTS_H
diff --git a/kernel.c b/kernel.c
index 95d803d..81d261f 100644
--- a/kernel.c
+++ b/kernel.c
@@ -33,6 +33,7 @@ void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags)
   // there and jumps to it... never, ever, ever returns
   demo_go_unprivileged();
 
+  
 
   while(1);
   
-- 
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