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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2023-10-04 09:37:49 +0100 |
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| committer | Laurent Vivier <laurent@vivier.eu> | 2023-10-06 10:33:43 +0200 |
| commit | e993af36a7bf2d1299f932098c9b19766626d7d8 (patch) | |
| tree | c42bffcff31ed0502e4c04e5788fd004b88f5769 /scripts/qapi/source.py | |
| parent | e2fd695e9daf4d31386e26695dcc61fef5363fed (diff) | |
| download | focaccia-qemu-e993af36a7bf2d1299f932098c9b19766626d7d8.tar.gz focaccia-qemu-e993af36a7bf2d1299f932098c9b19766626d7d8.zip | |
q800: add machine id register
MacOS reads this address to identify the hardware. This is a basic implementation returning the ID of Quadra 800. Details: http://mess.redump.net/mess/driver_info/mac_technical_notes "There are 3 ID schemes [...] The third and most scalable is a machine ID register at 0x5ffffffc. The top word must be 0xa55a to be valid. Then bits 15-11 are 0 for consumer Macs, 1 for portables, 2 for high-end 68k, and 3 for high-end PowerPC. Bit 10 is 1 if additional ID bits appear elsewhere (e.g. in VIA1). The rest of the bits are a per-model identifier. Model Lower 16 bits of ID ... Quadra/Centris 610/650/800 0x2BAD" Co-developed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004083806.757242-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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