assembly

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What is the function of the additional coprocessor register of the MRC command?

Quoting from the ARM MRC documentation, MRC{2}<c><q> <coproc>, #<opc1>, <Rt>, <CRn>, <CRm>{, #<opc2>}[详细]

2023-04-11 16:57 分类：问答
Do I need to know assembly to debug programs written in C?

I a开发者_StackOverflow中文版m learning C with \"The C Programming Language\", 2nd edition, and also doing each exercise.[详细]

2023-04-11 16:30 分类：问答
Optimizing RGBA8888 to RGB565 conversion with NEON

I\'m trying to optimize an image format conversion on iOS using the NEON vector instruction set. I assumed this would map well to that because it processes a bunch of similar data.[详细]

2023-04-11 16:28 分类：问答
User input problems

I\'ve literally just started programming in assembly language this week and I\'m having some trouble.I\'m making a program in MIPS using PCSpim and the program prompts the user to enter two non-negati[详细]

2023-04-11 16:23 分类：问答
Trouble with writing a very basic SPARC Assembly routine that returns whether a number is odd

I\'m writing a small assembly routine called isOdd, which, as the name implies, returns if the passed integer is odd, by returning 1 from a % operation.[详细]

2023-04-11 16:16 分类：问答
Implementation of a printf() function

I\'m working ona toy programming language. I use LLVM to generate machine code. Now my question is: How do you implement a printf() function from scratch?. In a C progra开发者_运维问答m you call into[详细]

2023-04-11 14:02 分类：问答
Assembly Code Programming for z390 Mainframe

Not finished with this problem In this program an unknown problem causes the assembler to reject the code because of apparently unknown macros, or what looks to the assembly like macros. I\'m not s[详细]

2023-04-11 13:14 分类：问答
AND faster than integer modulo operation?

It is possible to re-express: i % m as: i & (m-1) where, i is an unsigned integer m is a power of 2 My question is: is the AND operation any faster? Don\'t modern CPUs support integer[详细]

2023-04-11 10:46 分类：问答
C++ custom calling convention

While reverse engineering I came around a very odd program that uses a calling convention that passes one argument in eax ( very odd compiler ?? ). I want to call that function now and I don\'t know h[详细]

2023-04-11 07:32 分类：问答
Infinite loop after program termination

So this program was for an assignment. The due date passed and I turned in what I had and got a good grade, but this bug has been bothering me. It\'s not technically an a开发者_开发百科ssignment anymo[详细]

2023-04-11 06:49 分类：问答