Updated cx16 to match the Commander X16 ROMs and emulator, release 34.

2019-11-16 13:11:40 -05:00
parent 4dda5d2173
commit d78133e1f0
37 changed files with 607 additions and 182 deletions
--- a/libsrc/cx16/joyref.s
+++ b/libsrc/cx16/joyref.s
@@ -0,0 +1,20 @@
+;
+; 2019-11-14, Greg King
+;
+; Link an interrupt handler if joysticks are used by a program.
+;
+
+        .interruptor    joy_libref, 9
+
+        .include        "cbm_kernal.inc"
+        .include        "cx16.inc"
+
+
+joy_libref:
+        lda     VERA::IRQ_FLAGS
+        lsr     a
+        bcc     not_vsync
+        jsr     GETJOY          ; Bit-bang game controllers
+        clc                     ; Let other Jiffy handlers run
+not_vsync:
+        rts