Questions tagged [assembly]

18

votes

5

answers

True random numbers with C++11 and RDRAND

asked 2013-07-12T14:12:24.510

10

votes

3

answers

Why can't one instruction include two memory references in assembly?

assembly x86

asked 2013-07-07T17:36:45.980

12

votes

1

answers

What does the ".align" directive mean in x86-64 Assembly?

assembly x86 x86-64 cpu-architecture

asked 2013-06-25T19:15:33.730

22

votes

2

answers

How to specify register constraints on the Intel x86_64 register r8 to r15 in GCC inline assembly?

assembly gcc x86-64 inline-assembly cpu-registers

asked 2013-06-18T02:08:28.960

17

votes

4

answers

Why would a compiler generate this assembly?

c++ gcc assembly compiler-optimization

asked 2013-05-21T20:41:34.257

12

votes

3

answers

How can I view assembly code produced for C functions?

c assembly compiler-flags

asked 2013-04-26T17:10:16.357

12

votes

6

answers

Seeing how Instructions get Translated (Computer Architecture)

assembly embedded emulation cpu-architecture 6502

asked 2013-04-18T12:22:02.347

8

votes

1

answers

Floating Point Exception when dividing in x86 nasm

linux assembly x86 nasm

asked 2013-03-24T18:45:29.087

29

votes

5

answers

What is the point of delay slots?

assembly mips cpu-architecture branch-prediction pipelining

asked 2013-03-13T00:50:22.413

65

votes

7

answers

How do AX, AH, AL map onto EAX?

assembly x86 cpu-registers

asked 2013-03-03T21:33:38.210

9

votes

4

answers

How can assembly work on an Operating System?

assembly operating-system

asked 2013-02-26T18:32:16.887

12

votes

2

answers

Triple fault on stack in C code

gcc assembly x86 stack osdev

asked 2013-02-10T10:07:25.007

23

votes

5

answers

Function Prologue and Epilogue in C

c++ c assembly stack-frame epilogue

asked 2013-02-08T03:53:06.187

12

votes

2

answers

What values can the carry flag hold, and how to check its status in x86 assembly?

assembly x86 nasm

asked 2013-01-29T02:28:50.433

18

votes

1

answers

What does the "mov rax, QWORD PTR fs:0x28" assembly instruction do?

linux assembly gdb x86-64

asked 2013-01-19T13:15:02.467

21

votes

5

answers

Is it possible to access the overflow flag register in a CPU with C++?

c++ assembly flags integer-overflow

asked 2013-01-16T12:52:12.303

9

votes

2

answers

Fastest way to count bits

c assembly

asked 2012-12-23T08:57:21.873

18

votes

1

answers

AVX VMOVDQA slower than two SSE MOVDQA?

assembly sse bignum arbitrary-precision avx

asked 2012-12-20T15:37:04.703

22

votes

3

answers

loading ELF file in C in user space

linux assembly loader elf

asked 2012-12-17T04:30:41.753

13

votes

5

answers

calling assembly function from c

c linux assembly gcc x86

asked 2012-12-16T12:24:20.437

19

votes

2

answers

Is ADD 1 really faster than INC ? x86

performance optimization assembly x86

asked 2012-11-14T16:53:40.910

9

votes

1

answers

thread local storage in assembly

c gcc assembly

asked 2012-11-12T20:20:34.210

34

votes

4

answers

print a __m128i variable

c assembly sse simd intrinsics

asked 2012-11-06T18:34:33.680

13

votes

1

answers

Variable length arrays in C, how are they compiled

c gcc assembly compilation arm

asked 2012-11-05T15:14:00.027

9

votes

3

answers

Using global variables declared in C, in Arm assembly

c assembly arm

asked 2012-11-01T16:14:47.183

10

votes

5

answers

Using a virtual machine to learn assembly

assembly

asked 2012-10-22T23:30:18.570

8

votes

1

answers

Maximum optimization of element wise multiplication via ARM NEON assembly

c++ optimization assembly arm neon

asked 2012-10-08T07:54:15.277

29

votes

2

answers

Cost of push vs. mov (stack vs. near memory), and the overhead of function calls

c assembly x86 stack processing-efficiency

asked 2012-10-07T06:08:53.590

12

votes

2

answers

Why does gcc push %rbx at the beginning of main?

gcc assembly

asked 2012-10-04T21:40:48.383

44

votes

3

answers

Why is such complex code emitted for dividing a signed integer by a power of two?

c++ assembly visual-c++ x86 integer-division

asked 2012-10-02T14:20:25.603

18

votes

2

answers

Calling fsincos instruction in LLVM slower than calling libc sin/cos functions?

assembly llvm inline-assembly x87

asked 2012-09-18T21:18:33.703

11

votes

2

answers

meaning of R_386_32/R_386_PC32 in .rel.text section of elf

c linux assembly x86

asked 2012-09-13T17:57:00.903

14

votes

1

answers

Reliable information about x86 string instruction performance?

performance optimization assembly x86

asked 2012-09-10T20:48:20.380

8

votes

2

answers

How many assembly languages are there

assembly x86

asked 2012-09-07T20:22:48.057

21

votes

2

answers

How do I interpet this x86_64 assembly opcode?

assembly x86-64

asked 2012-06-24T19:52:28.490

59

votes

4

answers

What is the difference between unconditional branch and unconditional jump (instructions in MIPS)?

assembly mips

asked 2012-06-11T13:59:25.533

20

votes

4

answers

CPU TSC fetch operation especially in multicore-multi-processor environment

c assembly multicore cpu-registers microprocessors

asked 2012-06-06T19:53:57.180

12

votes

2

answers

Is it okay to mix legacy SSE encoded instructions and VEX encoded ones in the same code path?

assembly x86 sse avx

asked 2012-06-02T21:21:41.913

15

votes

2

answers

Assembly Segments in opcodes

assembly x86 masm addressing-mode memory-segmentation

asked 2012-05-30T16:59:13.200

9

votes

3

answers

Output language/format for toy compiler

assembly compiler-construction language-design vm-implementation

asked 2012-05-06T20:03:32.440

54

votes

1

answers

What is the 'asmlinkage' modifier meant for?

c assembly linux-kernel

asked 2012-05-05T07:01:45.903

8

votes

1

answers

Detouring and GCC inline assembly (Linux)

linux gcc assembly hook detours

asked 2012-05-02T19:08:40.410

9

votes

3

answers

Efficient complex arithmetic in x86 assembly for a Mandelbrot loop

c assembly x86 sse complex-numbers

asked 2012-04-26T08:39:20.163

189

votes

3

answers

Why does GCC generate such radically different assembly for nearly the same C code?

c gcc assembly x86 compiler-optimization

asked 2012-04-20T16:59:24.940

18

votes

4

answers

How is a 2 pass-assembler different from a one pass assembler in resolving the future symbols?

assembly

asked 2012-04-20T10:24:03.247

9

votes

2

answers

64-bit windows VMware detection

visual-c++ assembly 64-bit vmware detection

asked 2012-04-10T12:03:39.103

83

votes

1

answers

C code loop performance [continued]

c performance intel instructions assembly

asked 2012-04-04T08:11:33.050

32

votes

5

answers

Modern x86 cost model

performance assembly x86 floating-point micro-optimization

asked 2012-03-31T15:01:55.043

12

votes

1

answers

Getting floating point exception while trying to use div in assembly

assembly x86

asked 2012-03-20T18:49:14.467

23

votes

4

answers

Floating Point Modulo Operation

c assembly binary floating-point modulo

asked 2012-02-29T19:38:13.100

Questions tagged assembly