inline-assembly

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x86 Assembly: INC and DEC instruction and overflow flag

In x86 assembly, the overflow flag is set when an add or sub operation on a signed integer overflows, and the carry flag is set when an operation on an uns开发者_StackOverflow社区igned integer overflo[详细]

2023-01-20 07:16 分类：问答
inline assembly output register declaration

i\'m just about to learn inline assembly.the GCC inline assembly cookbook http://www.ethernut.de/en/documents/arm-inline-asm.html[详细]

2023-01-20 02:04 分类：问答
GCC inline assembly: constraints

I\'m having difficulty understanding the role constraints play in GCC inline assembly (x86).I\'ve read the manual, which explains exactly what each constraint does.The problem is tha开发者_运维问答t e[详细]

2023-01-19 14:34 分类：问答
Labels in GCC inline assembly

In my ongoing experimentation with GCC inline assembly, I\'ve run into a new problem regarding labels and inlined code.[详细]

2023-01-19 14:26 分类：问答
Complicated code for obvious operations

Sometimes, mainly for optimization purposes, very simple operations are implemented as complicated and clumsy code.[详细]

2023-01-19 00:50 分类：问答
GCC Inline Assembly Multiplication

I\'m trying to learn GCC inline assembly on Linux (x86), and my first experiment was to try and implement integer overflow detection for multiplication.It seems easy enough, but it is having side effe[详细]

2023-01-18 22:53 分类：问答
How to generify data for "mov" instruction?

I need to understand just 1 single instruction and accordingly I need to generify the things. I need to pass structures (Objects of User Defined Data Types) at runtime using following assembly code.[详细]

2023-01-18 02:14 分类：问答
Is there a way to use expressions evaluated at compile-time with inline asm in gcc?

I have some code that basically needs to use a small expression in an assembly statement, where the expression is fairly trivial like i*4, but GCC doesn\'t seem to realize that at compile time (tried[详细]

2023-01-17 18:53 分类：问答
Defining Bytes in GCC Inline Assembly in Dev-C++(.ascii in AT&T syntax on Windows)

The code below is just showing a Message Box on the screen. The addresses are hardcoded to facilitate:[详细]

2023-01-15 23:22 分类：问答
How to write multiline inline assembly code in GCC C++?

This does not look too friendly: __asm(\"command 1\" \"command 2\" \"command 3\"); Do I really have to put a doublequote around 开发者_如何学Goevery line?[详细]

2023-01-15 11:30 分类：问答