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macfb: allow reads from the DAFB_LUT register

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This enables A/UX to correctly retrieve the LUT entries when used with
applications that use the MacOS Device Manager Status (GetEntries) call.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <20231026085650.917663-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2023-10-26 09:56:50 +01:00 committed by Laurent Vivier
parent ced64254d6
commit 95f3943210
1 changed files with 5 additions and 0 deletions
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5
hw/display/macfb.c
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@ -537,6 +537,11 @@ static uint64_t macfb_ctrl_read(void *opaque,
case DAFB_MODE_SENSE:
val = macfb_sense_read(s);
break;
case DAFB_LUT ... DAFB_LUT + 3:
val = s->color_palette[s->palette_current];
s->palette_current = (s->palette_current + 1) %
ARRAY_SIZE(s->color_palette);
break;
default:
if (addr < MACFB_CTRL_TOPADDR) {
val = s->regs[addr >> 2];