hardware

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 months ago . I have a reasonably modern developer desktop (E6600, ASUS PN5-E, 2GB RAM, 350GB SATA2, Vista Ultimate x32), but I'd like to squeeze some more out of it. I am wondering what the best bang-for-bucks hardware upgrade would be. If I limit my budget to £150GBP (~$300USD), what

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 months ago . I have a reasonably modern developer desktop (E6600, ASUS PN5-E, 2GB RAM, 350GB SATA2, Vista Ultimate x32), but I'd like to squeeze some more out of it. I am wondering what the best bang-for-bucks hardware upgrade would be. If I limit my budget to £150GBP (~$300USD), what

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 months ago . I have a reasonably modern developer desktop (E6600, ASUS PN5-E, 2GB RAM, 350GB SATA2, Vista Ultimate x32), but I'd like to squeeze some more out of it. I am wondering what the best bang-for-bucks hardware upgrade would be. If I limit my budget to £150GBP (~$300USD), what

问题 Flip-Flops(,Registers ...) are usually triggered by a rising or falling edge. But mostly in code you see an if-clause which uses the rising edge triggering. In fact i never saw a code with falling edge. Why is that? Is it because naturally the programmers use rising edge, because they are used to, or is it because of some physical/analog law/fact, where the rising edge programming is faster/simpler/energy-efficient/... ? 回答1: As zennehoy says, it's convention - but one going back to when

问题 How do GDB watchpoints work? Can similar functionality be implemented to harness byte level access at defined locations? 回答1: I believe gdb uses the MMU so that the memory pages containing watched address ranges are marked as protected - then when an exception occurs for a write to a protected pages gdb handles the exception, checks to see whether the address of the write corresponds to a particular watchpoint, and then either resumes or drops to the gdb command prompt accordingly. You can

问题 I need to get specifications of hard disk on both Win and *nix machines. I used <hdreg.h> on Linux like this: static struct hd_driveid hd; int device; if ((device = open("/dev/sda", O_RDONLY | O_NONBLOCK)) < 0) { cerr << "ERROR: Cannot open device /dev/sda \n"; exit(1); } if (!ioctl(device, HDIO_GET_IDENTITY, &hd)) { cout << hd.model << endl; cout << hd.serial_no << endl; cout << hd.heads << endl; } I need hd_driveid to tell me some more information about disk. I want to know: Number of

问题 Suddenly, I am made to look into some verilog testbench code which heavily uses $readmemh, and $writememh. I understood that it basically read to memory and write to memory. I will be happy if you can point to some resources related to those routines. PS: I searched in google for no success. (I am very ... very new to Verilog) 回答1: I agree its not too easy to find something about readmem/writemem. You can find a little bit here: http://fullchipdesign.com/index_files/readmemh.htm Anyway there

问题 I have done some searching but have not found a truly satisfactory answer. As a developer i want to invest the necessary time in understanding this, thus i am looking for a complete explanation on this and feel free to provide any useful references. Thanks. 回答1: I would recommend buying this book by Andrew S. Tanenbaum. He developed one of the predecessors to Linux called Minix. I used Structured Computer Organization as part of my university course. Why computers use binary is not just a

问题 I have been searching the web for a clean solution on how to migrate our 2010 tfs collections to our new tfs 2012 server, but no luck. May someone please assist with the steps or a good blog I could look at to achieve this process. The reason we want to do a MIGRATION and not an upgrade is because we got new hardware and would first like to trial TFS 2012 before we upgrade our live environment. Therefore we would like to import all our collection including the work items and build process

问题 I posted an answer to another stackoverflow question which requires some digital logic to be implemented in Verilog or VHDL so that it can be programmed into an FPGA. How would you implement the following logic diagram in Verilog, VHDL, or any other hardware description language? The numbered boxes represent bits in a field. Each field has K bits, and the bits for current and mask will be provided by a computer system (using a latched register or equivalent). The bits in next will be read