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; 2. Allocate memory for the hub descriptor.
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; 2. Allocate memory for the hub descriptor.
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; Maximum length (assuming 255 downstream ports) is 40 bytes.
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; Maximum length (assuming 255 downstream ports) is 40 bytes.
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; 2a. Save registers.
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; 2a. Save registers.
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        push    edx
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        push    edx
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; 2b. Call the allocator.
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; 2b. Call the allocator.
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        push    40
 - 
 
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        pop     eax
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        movi    eax, 40
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        call    malloc
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        call    malloc
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; 2c. Restore registers.
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; 2c. Restore registers.
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        pop     ecx
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        pop     ecx
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; 2d. If failed, say something to the debug board and return error.
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; 2d. If failed, say something to the debug board and return error.
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        test    eax, eax
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        test    eax, eax