Message ID | 20211022071705.471954-2-laurent@vivier.eu |
---|---|
State | New |
Headers | show |
Series | [PULL,1/9] mac_via: update comment for VIA1B_vMystery bit | expand |
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c index 993bac017db8..7a53a8b4c04d 100644 --- a/hw/misc/mac_via.c +++ b/hw/misc/mac_via.c @@ -130,6 +130,10 @@ * On SE/30, vertical sync interrupt enable. * 0=enabled. This vSync interrupt shows up * as a slot $E interrupt. + * On Quadra 800 this bit toggles A/UX mode which + * configures the glue logic to deliver some IRQs + * at different levels compared to a classic + * Mac. */ #define VIA1B_vADBS2 0x20 /* ADB state input bit 1 (unused on IIfx) */ #define VIA1B_vADBS1 0x10 /* ADB state input bit 0 (unused on IIfx) */