From 1e0f577e099b3d7787d6e6d4fce1813ccd6b489c Mon Sep 17 00:00:00 2001
From: Brooke Vibber <bvibber@pobox.com>
Date: Tue, 31 Dec 2024 09:09:11 -0800
Subject: [PATCH] wip

---
 mandel.s | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mandel.s b/mandel.s
index 8b63941..6977582 100644
--- a/mandel.s
+++ b/mandel.s
@@ -453,6 +453,8 @@ viewport_oy:
     sta dest + 1
 .endmacro
 
+; input: arg as u8
+; input/output: dest as u16
 ; clobbers a, x
 .macro sqr8_add16 dest, arg
     ldx arg