From 6637e288318f10cf789faedb3ef46f2323691fa3 Mon Sep 17 00:00:00 2001
From: Gabriele Gorla <44734244+gorlik@users.noreply.github.com>
Date: Wed, 8 Sep 2021 15:00:20 -0700
Subject: [PATCH] saves 2 bytes in the standard c64 joystick driver

remove redundant code and add jmp to the common sequence
two more bytes could be saved at the expense of longer sequence with interrupts disabled by moving sei/cli
---
 libsrc/c64/joy/c64-stdjoy.s | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/libsrc/c64/joy/c64-stdjoy.s b/libsrc/c64/joy/c64-stdjoy.s
index c983d81bb..d11093fba 100644
--- a/libsrc/c64/joy/c64-stdjoy.s
+++ b/libsrc/c64/joy/c64-stdjoy.s
@@ -93,9 +93,7 @@ joy1:   lda     #$7F
         sta     CIA1_PRA
         lda     CIA1_PRB
         cli
-        and     #$1F
-        eor     #$1F
-        rts
+        jmp     end
 
 ; Read joystick 2
 
@@ -107,8 +105,6 @@ joy2:   ldx     #0
         lda     CIA1_PRA
         sty     CIA1_DDRA
         cli
-        and     #$1F
+end:    and     #$1F
         eor     #$1F
         rts
-
-