cs401 assignment no 1 spring 2011 idea solution

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On Sun, Apr 17, 2011 at 11:18 AM, afaaq <afaaqtariq233@gmail.com> wrote:

> *
>
> cs401 assignment no 1 spring 2011 idea solution
>
>
>
> Suppose your computer has a processor with 24-bit address lines. What is
> maximum amount of memory that can be attached in your system? (Show the
> step(s) for calculation of maximum addressable memory) (2.5 marks)
>
>
>
> b)
>
> How many address bits are required for accessing 1GB RAM? (Show the step(s)
> for calculation of required address bits) (2.5 marks)
>
>
>
> Question No. 2:
>
> What are the contents of memory locations 0151, 0152, 0153, ………….,0158 if
> 0151 is starting address for Label1. (1 mark for each location)
>
>
>
> Label1: dw 8494
>
> db 42
>
> dw 54
>
> dw 7500
>
> db 01
>
>
>
>
>
> Question No. 3:
>
>
>
> a)
>
> Calculate physical address using the following segment offset pairs. (1
> mark each)
>
>
>
>
>
> 00EA:02A4
>
> 0100:AA23
>
> D3B8:F222
>
> 00A0:1234
>
> 8FEf:0FFF
>
>
>
> b)
>
> What is effective address generated by the following instructions? Every
> instruction is independent of others. Initially bx = 0x0101, bp=0x0222,
> si=0x1234, var1=0x1771
>
> (1 mark each)
>
>
>
> mov ax, [bx+si]
>
> mov ax, [bx+100] (100 is in decimal)
>
> mov ax, [bp+si]
>
> mov ax, [var1+bp]
>
> mov ax, [si+var1]
> *
> *
>
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