diff --git a/src/lib/heap.s b/src/lib/heap.s
index bc0f541..a28e340 100644
--- a/src/lib/heap.s
+++ b/src/lib/heap.s
@@ -48,6 +48,7 @@
 .equ sizeof_fb, (8*4 + align_imask) & align_mask
 .equ sizeof_ub, (8*1 + align_imask) & align_mask
 
+# TODO: use with brk to reduce redundant calls
 .equ PAGE_SIZE, 4096
 
 
diff --git a/src/test/heap.s b/src/test/heap.s
index 3d5beeb..a3c9ca9 100644
--- a/src/test/heap.s
+++ b/src/test/heap.s
@@ -22,6 +22,13 @@ hexstr:
 
 
 
+# TODO: The print is really nice,
+# but this is kinda garbage because
+# it only tests what's hardcoded here.
+# Need to turn into program where you
+# can enter commands to test exactly
+# what you want.
+
 .align 2
 .section .text