x86-64

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Is it possible to execute 32-bit code in 64-bit process by doing mode-switching?

In this page, http://www.x86-64.org/pipermail/discuss/2004-August/005020.html He said that there is a way to mix 32-bit code and 64-bit code in a application. He assumed the application is 32-bit (in[详细]

2023-02-12 21:57 分类：问答
Push and Pop on AMD64 [duplicate]

This question already has answers here: Does each PUSH instruction push a multiple of 8 bytes on x64? (2 answer开发者_开发问答s)[详细]

2023-02-12 05:26 分类：问答
Alignment of vectors in LLVM's amd64 output

I\'m trying to use vectors inside structs with LLVM. I have the following C definition of my struct: struct Foo[详细]

2023-02-12 03:21 分类：问答
instruction to copy lower 32 bits of a register to upper 32 bits

Is there a x86 instruction to directly replicate the lower 32 bits of a x86_64 register to upper 32 bits?[详细]

2023-02-12 02:34 分类：问答
Does x64 mono require x64 class library?

I compiled an x64 mono (version 2.11) on Windows. 开发者_运维技巧I noticed that every program that use a class library (System.Net, System.IO, ...) crash systematically.[详细]

2023-02-11 17:13 分类：问答
Is PostgreSQL 9.0 JDBC driver working well with 64 bit java?

I\'ve been struggling with getting James Mail Server to work with PostgreSQL on a 64bit Slackware 13.1.[详细]

2023-02-09 23:36 分类：问答
the stack and vtable [re]location

NOTE: To understand my question, you might need to know about my project and the problem.If not,skip right to the \"QUESTION\" section at the bottom.[详细]

2023-02-09 06:13 分类：问答
Developing with same .Net solution on x86 and x64 OS - references to program files dlls

I\'m working in an environment where some developers are working on an x86 environment (still WinXP) and others are working on a 64bit enviroment (Windows Server 2008 R2). The solution has a lot of re[详细]

2023-02-09 03:54 分类：问答
PC-relative jump in gcc inline assembly

I have an asm loop guaranteed not to go over 128 iterations that I want to unroll with a PC-relative jump. The idea is to unroll each iteration in reverse order and then jump however far into the loop[详细]

2023-02-08 13:19 分类：问答
Does the REX.B override work with the MOVSS instruction?

I\'m generating the following instruction for 64 bit x86: 41 F3 0F 10 46 10movssXMM0,014h[R14] Unfortunately, it seg faults on that line. gdb disassembles it as:[详细]

2023-02-07 06:05 分类：问答