irq: Allow boards to define the return type of irq_save()

The AVR wants a uint8_t return type for irq_save(), but other
architectures will generally prefer int.  Allow the board to configure
the size of the flag by introducing an irqstatus_t typedef.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 10 insertions, 6 deletions

diff --git a/src/simulator/main.c b/src/simulator/main.c
index 419fa531..1bffc265 100644
--- a/src/simulator/main.c
+++ b/src/simulator/main.c
@@ -16,28 +16,32 @@
  * Interrupts
  ****************************************************************/
 
-uint8_t Interrupt_off;
+irqstatus_t Interrupt_off;
 
-void irq_disable(void)
+void
+irq_disable(void)
 {
     Interrupt_off = 1;
     barrier();
 }
 
-void irq_enable(void)
+void
+irq_enable(void)
 {
     barrier();
     Interrupt_off = 0;
 }
 
-uint8_t irq_save(void)
+irqstatus_t
+irq_save(void)
 {
-    uint8_t flag = Interrupt_off;
+    irqstatus_t flag = Interrupt_off;
     irq_disable();
     return flag;
 }
 
-void irq_restore(uint8_t flag)
+void
+irq_restore(irqstatus_t flag)
 {
     barrier();
     Interrupt_off = flag;