From 9dfc8f84bcc8b5ad4b50c16615a84b76cb7bedca Mon Sep 17 00:00:00 2001
From: Greg King <gregdk@users.sf.net>
Date: Tue, 1 Oct 2019 05:30:36 -0400
Subject: [PATCH] Fixed cgetc().

The GETIN function doesn't protect CPU registers.
---
 libsrc/cx16/cgetc.s | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libsrc/cx16/cgetc.s b/libsrc/cx16/cgetc.s
index 14cad5f5a..2c5ea76d1 100644
--- a/libsrc/cx16/cgetc.s
+++ b/libsrc/cx16/cgetc.s
@@ -1,5 +1,5 @@
 ;
-; 2019-09-23, Greg King
+; 2019-10-01, Greg King
 ;
 ; char cgetc (void);
 ; /* Return a character from the keyboard. */
@@ -34,7 +34,9 @@ L1:     lda     KEY_COUNT
 
 L3:     ldy     IN_DEV          ; Save current input device
         stz     IN_DEV          ; Keyboard
+        phy
         jsr     GETIN           ; Read char, and return in .A
+        ply
         sty     IN_DEV          ; Restore input device
         ldx     #>$0000
         rts