libinterp, actually works

1 files changed, 28 insertions, 16 deletions

diff --git a/src/heap.c b/src/heap.c
index 746f0ef..8a18d38 100644
--- a/src/heap.c
+++ b/src/heap.c
@@ -1,23 +1,35 @@
 #include <heap.h>
 #include <stm32l476xx.h>
 
-#define HEAP_SIZE (16 * 1024)
-
-static uint32_t offset = 0;
+#define HEAP_SIZE (64 * 1024)
 
 uint8_t heap[HEAP_SIZE];
 
-void heap_init(void)
+void *_sbrk(int inc)
 {
-	// what to do...
-}
+	static uint8_t *hend;
+	uint8_t *prev;
 
-uint32_t heap_available(void)
-{
-	return HEAP_SIZE - offset;
+	if (hend == 0)
+		hend = heap;
+
+	prev = hend;
+	hend += inc;
+
+	return prev;
 }
 
-void *malloc(uint32_t size)
+//void heap_init(void)
+//{
+	// what to do...
+//}
+
+//uint32_t heap_available(void)
+//{
+//	return HEAP_SIZE - offset;
+//}
+
+/*void *malloc(uint32_t size)
 {
 	void *alloc = &heap[offset];
 	offset += size;
@@ -26,11 +38,11 @@ void *malloc(uint32_t size)
 
 void *calloc(uint32_t count, uint32_t size)
 {
-	/*uint32_t total = count * size;
-	void *alloc = hmalloc(total);
-	for (uint32_t i = 0; i < total; i++)
-		((uint8_t *)alloc)[i] = 0;
-	return alloc;*/
+	//uint32_t total = count * size;
+	//void *alloc = hmalloc(total);
+	//for (uint32_t i = 0; i < total; i++)
+	//	((uint8_t *)alloc)[i] = 0;
+	//return alloc;
 
 	// calloc broke
 	return malloc(count * size);
@@ -39,4 +51,4 @@ void *calloc(uint32_t count, uint32_t size)
 void free(void *ptr)
 {
 	(void)ptr;
-}
+}*/