Le 04/10/2021 à 12:32, BALATON Zoltan a écrit : > On Mon, 4 Oct 2021, Laurent Vivier wrote: >> Le 02/10/2021 à 13:00, Mark Cave-Ayland a écrit : >>> The MacOS toolbox ROM uses the monitor sense to detect the display type and >>> then >>> offer a fixed set of resolutions and colour depths accordingly. Implement >>> the >>> monitor sense using information found in Apple Technical Note HW26: >>> "Macintosh >>> Quadra Built-In Video" along with some local experiments. >>> >>> Since the default configuration is 640 x 480 with 8-bit colour then hardcode >>> the sense register to return MACFB_DISPLAY_VGA for now. >>> >>> Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> >>> --- >>> hw/display/macfb.c | 117 ++++++++++++++++++++++++++++++++++++- >>> hw/display/trace-events | 2 + >>> include/hw/display/macfb.h | 20 +++++++ >>> 3 files changed, 137 insertions(+), 2 deletions(-) >>> >>> diff --git a/hw/display/macfb.c b/hw/display/macfb.c >>> index 62c2727a5b..5c95aa4a11 100644 >>> --- a/hw/display/macfb.c >>> +++ b/hw/display/macfb.c >>> @@ -28,8 +28,66 @@ >>> #define MACFB_PAGE_SIZE 4096 >>> #define MACFB_VRAM_SIZE (4 * MiB) >>> >>> -#define DAFB_RESET 0x200 >>> -#define DAFB_LUT 0x213 >>> +#define DAFB_MODE_SENSE 0x1c >>> +#define DAFB_RESET 0x200 >>> +#define DAFB_LUT 0x213 >>> + >>> + >>> +/* >>> + * Quadra sense codes taken from Apple Technical Note HW26: >>> + * "Macintosh Quadra Built-In Video". The sense codes and >> >> https://developer.apple.com/library/archive/technotes/hw/hw_26.html > > URLs may change or go away so I think it's better to reference by title in > comments, then one can > find it by that whereas a stale URL is not much help a few years from now.
This URL is very stable (hosted by Apple for 30 years now...) and providing it could help to find a copy of the document in an internet archive. I had some difficulties to find it using the title or the TN number. Thanks, Laurent
