machine-instruction

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Is there any performance difference between greater than and greater than or equal?

On today\'s modern processors, is there any performance difference between greater than and greater than 开发者_开发百科or equal comparison for a branch condition?If I have a condition that could just[详细]

2023-03-09 02:09 分类：问答
What C++ code compiles down to the x86 REP instruction?

I\'m copying elements from one array to another in C++. I found the rep movs instruction in x86 that seems to copy an array at 开发者_运维百科ESI to an array at EDI of size ECX. However, neither the f[详细]

2023-02-07 12:33 分类：问答
How is data, address and Instruction differentiated in Processor/Register/memory?

In Processor, how are Data, Address and instructions are differentiated? When a program is executed, how is processor differentiate instructi开发者_运维知识库ons when everything is in 0s and 1s and re[详细]

2023-01-31 03:09 分类：问答
Instructions per sec for Operating systems

I am new to Computer Architecture and Design. My question was a high level program Instruction set are executed in CPU one after another. Does it even involve Operating System instructions as overhead[详细]

2023-01-30 13:33 分类：问答
ADC instruction in ASM 8086

When I use ADC for exmaple: AL = 01 and BL = 02, and开发者_Python百科 CF = 1 when I make this: ADC AL,BL[详细]

2022-12-27 22:59 分类：问答
Display empty textbox using Html.TextBoxFor on a not-null property in an EF entity

I am using Entity Framework (v4) entities. I have an entity called Car with a Year property of type integer. The Year property does not allow NULL. I have the following in my Create view开发者_如何学J[详细]

2022-12-27 20:07 分类：问答
how to translate this hpricot code to nokogiri?

Hpricot(html).inner_text.gsub(\"\\r\",\" \").gsub(\"\\n\",\" \").split(\" 开发者_JAVA百科\").join(\" \")[详细]

2022-12-26 20:18 分类：问答
conditional while loop in php?

I need to do a PHP while loop, but only if a variable is true. And I can\'t really put the while loop in an \"if\" statement, which seems like the obvious thing to do, since the code block is huge and[详细]

2022-12-22 23:29 分类：问答
How to access database of JasperReports Server via API?

Can we access Database of JasperReports Server server through its API? And do that allow us to ma开发者_Python百科ke run time report?[详细]

2022-12-22 05:13 分类：问答
C programming and error_code variable efficiency

Most code I have ever read uses a int for standard error handling (return values from functions and such). But I am wondering if there is any benefit to be had from using a uint_8 will a compiler -- r[详细]

2022-12-13 13:14 分类：问答