os-workshop

commit 234d4735e49c2a246be293a4e29863926ba2085a
parent f5a30bda1c5b2fea531e640cf28082d6450b7fb0
Author: Brian Swetland <swetland@frotz.net>
Date:   Sat, 14 May 2022 20:05:39 -0700

example: change stack allocation for threads examples

Diffstat:
M
example/ex10-threads-cooperative.c
 | 
4
++--
M
example/ex11-threads-preemptive.c
 | 
6
+++---

2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/example/ex10-threads-cooperative.c b/example/ex10-threads-cooperative.c
@@ -15,13 +15,13 @@
 
 #define MEMORY_TOP (DRAM_BASE + DRAM_SIZE)
 
-static uint8_t* next_stack = (void*) (MEMORY_TOP - 1024*1024);
+static uint8_t* next_stack = (void*) (MEMORY_TOP - 4096);
 static uint8_t* next_heap = (void*) (DRAM_BASE + 1024*1024);
 
 void* alloc_stack(void) {
 	void* s = next_stack;
 	next_stack -= 8192;
-	memset(next_stack, 0xee, 8192);
+	memset(next_stack, 0xee, 4096);
 	return s;
 }
 
diff --git a/example/ex11-threads-preemptive.c b/example/ex11-threads-preemptive.c
@@ -15,13 +15,13 @@
 
 #define MEMORY_TOP (DRAM_BASE + DRAM_SIZE)
 
-static uint8_t* next_stack = (void*) (MEMORY_TOP - 1024*1024);
+static uint8_t* next_stack = (void*) (MEMORY_TOP - 4096);
 static uint8_t* next_heap = (void*) (DRAM_BASE + 1024*1024);
 
 void* alloc_stack(void) {
 	void* s = next_stack;
-	next_stack -= 8192;
-	memset(next_stack, 0xee, 8192);
+	next_stack -= 4096;
+	memset(next_stack, 0xee, 4096);
 	return s;
 }