Le 13/10/2021 à 23:21, Mark Cave-Ayland a écrit : > According to both Linux and NetBSD, port B bit 6 is used on the Quadra 800 to > configure the GLUE logic in A/UX mode. Whilst the name VIA1B_vMystery isn't > particularly descriptive, the patch leaves this to ensure that the constants > in mac_via.c remain in sync with Linux's mac_via.h. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> > --- > hw/misc/mac_via.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c > index 993bac017d..7a53a8b4c0 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) */ >
I'm not sure we need to keep in sync a word that neither used by linux or qemu (for now). Perhaps you can put a word from where it is (NetBSD)? It seems it's supported by all Quadra, not only Quadra 800 (see NetBSD comment in mac68k/machdep.c Anyway: Reviewed-by: Laurent Vivier <laur...@vivier.eu>
