For Darwin, the default addressing mode is memory banks. #205
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When the host OS is Mac OS X, direct addressing in BII doesn't guarantee that the allocated memory for frame buffer base address in the host (FrameBaseHost) satisfies the following conditions: - FrameBaseHost > RamBaseHost - (FrameBaseHost - RamBaseHost) + Frame_Size < 4GiB where RamBaseHost refers to the emulated RAM base address in the host. This may cause the random hang problem where the allocated frame address failed to meet the conditions above. Because the direct addressing mapping is a simple math: RamAddrMac = RamAddrHost - RamBaseHost. See details: cebix#203 Signed-off-by: Ricky Zhang <rickyzhang@gmail.com>
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When the host OS is Mac OS X, direct addressing in BII doesn't guarantee
that the allocated memory for frame buffer base address in the host
(FrameBaseHost) satisfies the following conditions:
where RamBaseHost refers to the emulated RAM base address in the host.
This may cause the random hang problem where the allocated frame address
failed to meet the conditions above.
Because the direct addressing mapping is a simple math:
RamAddrMac = RamAddrHost - RamBaseHost.
See details: #203
Signed-off-by: Ricky Zhang rickyzhang@gmail.com