cpu-architecture

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Calculation of physical address in 8086

I learnt that the physical address is calculated by shifting the segment address (16-bit) left 4 times and adding it with the 16-bit 开发者_运维百科offset address. The memory in the 8086 architecture[详细]

2023-03-20 23:02 分类：问答
Good books or resources for understanding OS, kernel and CPU architectures [closed]

Closed. This question is off-topic. It is not currently accepting answers. 开发者_StackOverflow中文版Want to improve this question? Update the question so it's on-topic for Stack Overflo[详细]

2023-03-19 16:41 分类：问答
What are w-bit words?

What are w-bit words in computer architecture ? For two 7 bit words开发者_StackOverflow中文版 1011001 = A[详细]

2023-03-19 16:26 分类：问答
retrieve Android ARM processor version programmatically

Is there a way to retrieve the ARM processo开发者_StackOverflowr version programmatically? I\'m trying to send it to Google Analytics. I\'ve been told it\'s in the /proc/cpuinfo folder but I\'m unsure[详细]

2023-03-19 06:48 分类：问答
Microprogramming in MIPS

I am learning about micro programming and am confused as to what a micro-instruction actually is. I am using the MIPS architecture. My questions are as follows[详细]

2023-03-16 23:43 分类：问答
On what architectures is calculating invalid pointers unsafe?

int* a = new int[5] - 1; This line by itself invokes undefined behavior according to the C++ standard because a is an invalid pointer and not one-past-the-end. At the same time this is a zero overhe[详细]

2023-03-16 19:08 分类：问答
Vectored interrupts

What is the difference between vector开发者_如何学Pythoned and non vectored interrupts? I thought all interrupts had to be vectored interrupts... After all don\'t all interrupts have a vector number[详细]

2023-03-16 15:42 分类：问答
Can a TLB hit lead to page fault in memory?

In UC Berkley Video lectures on OS by John Kubiatowicz (Prof. Kuby) available on web, he mentioned that TLB hit doesn\'t mean that corresponding page is in main memory. Page fault can still occur.[详细]

2023-03-13 18:21 分类：问答
why 32 bit drivers do not work on 64 bit

From past readings it seems most 32 bit drivers won\'t work on 64 bit. At a purely conceptual level, I see a 64 bit machine as having extra \'room\' when using开发者_开发问答 32 bit drivers so am try[详细]

2023-03-12 05:24 分类：问答
i can't understand the following verilog code

i can\'t u开发者_如何学Cnderstand the two lines at the end of this code input [15:0] offset ; output [31:0] pc;[详细]

2023-03-09 21:44 分类：问答