From fa64046e54f5af3d482d2dbcb2dcbff3458a952a Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Thu, 17 Mar 2022 20:20:13 -0700
Subject: Implemented semaphore

---
 include/cpu.h          | 2 ++
 include/sys/schedule.h | 2 ++
 2 files changed, 4 insertions(+)

(limited to 'include')

diff --git a/include/cpu.h b/include/cpu.h
index 9bda3e8..393fe2f 100644
--- a/include/cpu.h
+++ b/include/cpu.h
@@ -94,5 +94,7 @@ static inline void* getirqstack(void)
 #define SYS_FREE_STACK  3
 #define SYS_LOCK        4
 #define SYS_UNLOCK      5
+#define SYS_SEMAPHORE_P 6
+#define SYS_SEMAPHORE_V 7
 
 #endif
diff --git a/include/sys/schedule.h b/include/sys/schedule.h
index 12c8fec..d0d938c 100644
--- a/include/sys/schedule.h
+++ b/include/sys/schedule.h
@@ -62,6 +62,8 @@ extern void schedule(void);
 extern void cleanup(void);
 void yield(void);
 void sched_mutex_yield(void* m);
+void sched_semaphore_yield(void* s);
 void sched_mutex_resurrect(void* m);
+void sched_semaphore_resurrect(void* s);
 
 #endif
-- 
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