1.1 --- a/switcher.oph Sun Jun 28 23:30:02 2015 +0200
1.2 +++ b/switcher.oph Sun Aug 16 21:49:17 2015 +0200
1.3 @@ -96,6 +96,7 @@
1.4 ; return here with the initial main program stack
1.5
1.6 main_end:
1.7 + jsr restore_handler
1.8 rts
1.9
1.10
1.11 @@ -125,6 +126,18 @@
1.12
1.13
1.14
1.15 +; restore the old interrupt handler address to IRQ1V
1.16 +;
1.17 +; affects: A
1.18 +
1.19 +restore_handler:
1.20 + sei
1.21 + .invoke mov16 old_handler, IRQ1V
1.22 + cli
1.23 + rts
1.24 +
1.25 +
1.26 +
1.27 ; handle interrupts
1.28 ;
1.29 ; affects: (temporary stack usage)