other benchmarks

Tests/isa/CPrograms/malloc.c

@@ -16,6 +16,8 @@
 void* tiny_malloc(size_t);
 void    tiny_free(void*);
 
+#define ALIGN 16
+
 // #define HEAP_SIZE 65536  // 64 KB heap
 
 // #define PHYS_BASE 0x80000000
@@ -57,7 +59,11 @@ void * __capability malloc(size_t size) {
     
     cap = cheri_bounds_set(cap, size); 
 
-    cap = add_delta(cap, 12);
+    int delta = 12;
+
+    delta = (delta + ALIGN - 1) & ~(ALIGN - 1);
+
+    cap = add_delta(cap, delta);
 
     // // Align to 8 bytes (important for capability safety)
     // size = (size + 7) & ~7;