initial commit

.gitignore

@@ -0,0 +1 @@
+build/

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+project(heap C)
+
+set(CMAKE_C_FLAGS -m32)
+add_executable(heap heap.c)

heap.c

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+#include <stdio.h>
+#include <stdint.h>
+
+#define cu_round2_up(val,bit) (((val>>bit) + !!(val&((1<<bit)-1)) ) << bit)
+
+typedef struct {
+    void* start;
+    unsigned int size;
+} mheap_t;
+
+typedef struct {
+    void* prev;
+    unsigned int size;
+} mblock_t;
+
+#define MBLOCK_ALLOCATED    (1<<0)
+
+void heap_init(mheap_t* heap, void* start, unsigned int size)
+{
+    heap->start = start;
+    heap->size = size;
+
+    mblock_t* block = (mblock_t*)heap->start;
+    block->prev = NULL;
+    block->size = size;
+}
+
+
+
+int main()
+{
+    printf("mblock_t\t%u\n", sizeof(mblock_t));
+    return 0;
+}