From 02c721c95faa603afc82d6ebeaa1f3e43f686412 Mon Sep 17 00:00:00 2001 From: Jarno Lehtinen Date: Tue, 5 Apr 2022 23:12:53 +0300 Subject: [PATCH] Update README.md --- C64_4joy_adapter/README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/C64_4joy_adapter/README.md b/C64_4joy_adapter/README.md index 2b6a482..d27a4da 100644 --- a/C64_4joy_adapter/README.md +++ b/C64_4joy_adapter/README.md @@ -42,6 +42,7 @@ sei ## atomic - https://groups.google.com/a/arduino.cc/g/developers/c/cmu0Qy32zxY - http://www.gammon.com.au/forum/?id=11488 +- https://home.csulb.edu/~hill/ee346/Lectures/10%20ATmega32U4%20Interrupts.pdf ## register as variable - https://forum.arduino.cc/index.php?topic=43760.5