Properly preserve all registers when entering the ISR.

2025-09-14 17:07:26 +02:00
parent fb99ec2703
commit 149cdfa872
1 changed files with 7 additions and 1 deletions
@@ -20,12 +20,18 @@ ivt:
 EXTERN _timer_isr
 PUBLIC z80_a_timer_isr
 z80_a_timer_isr:
-    ; TODO(giomba): preserve registers
    exx
    ex af,af'
+    push ix
+    push iy
+
    call _timer_isr
+
+    pop iy
+    pop ix
    ex af,af'
    exx
+
    ei
    reti