From 97e3472c8701c2b7b89e8d4d98f693a25277c187 Mon Sep 17 00:00:00 2001
From: Christian Groessler <chris@groessler.org>
Date: Wed, 8 Mar 2017 13:16:40 +0100
Subject: [PATCH] creativision.inc: add symbolic names for joystick direction
 values

---
 asminc/creativision.inc | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/asminc/creativision.inc b/asminc/creativision.inc
index 59b26101b..83a63ba07 100644
--- a/asminc/creativision.inc
+++ b/asminc/creativision.inc
@@ -36,6 +36,24 @@ ZP_JOY1_DIR             = $13
 ZP_JOY0_BUTTONS         = $16
 ZP_JOY1_BUTTONS         = $17
 
+;** Joystick direction values (ZP_JOY0_DIR/ZP_JOY1_DIR)
+JOY_N                   = $49
+JOY_NNE                 = $48
+JOY_NE                  = $47
+JOY_ENE                 = $46
+JOY_E                   = $45
+JOY_ESE                 = $44
+JOY_SE                  = $43
+JOY_SSE                 = $42
+JOY_S                   = $41
+JOY_SSW                 = $40
+JOY_SW                  = $4F
+JOY_WSW                 = $4E
+JOY_W                   = $4D
+JOY_WNW                 = $4C
+JOY_NW                  = $4B
+JOY_NNW                 = $4A
+
 ;** BIOS
 BIOS_IRQ1_ADDR          = $FF3F
 BIOS_IRQ2_ADDR          = $FF52
-- 
2.39.5