This question already has answers here: Closed 11 years ago. Possible Duplicate: unsigned int and signed char comparison
I\'m trying to write a (very) short assembly routine which tests for equality of two dwords and returns a boolean value (1 = true, 0 = false). So far I\'ve come up with three methods, one of which use
I am writing a very simple operating system as a learning tool for myself.My current task is detecting as much about the hardware as possible.
I have been recently learning x86 assembly language via GNU Assembler on Ubuntu by th开发者_StackOverflowe book Programming Ground UP at somewhere on the internet.
I stumbled upon a statement in Intel Software developers manual: \"For LGDT, LIDT, LLDT, LTR, SGDT, SIDT, SLDT, STR, the exit qualification receives the value of the instruction’s displacement field,
Which one is faster - val = val*10; or val = (va开发者_运维知识库l<<3) + (val<<2); How many clock cycles does imul take when compared to shift instruction?This is the 21st century.
A very basic question. I have learnt that device drivers and interrupt service routines are some program or codes only. whenever required they are made to execute.
32-bit x86 is a superset of 16-bit x86. Suppose I write a code in 16-bit x86. It should ideally work on system with 32-bit x86 without any hitch. But that is not the case. C开发者_开发百科ompatibility
What\'s the rationale behind dropping the frame pointer on 64-bit architectures by default? I\'m well aware that it can be enabled but why does GCC disable it in the first place while having it enable
Late At Work last night, we were trying to figure out why something was failing. A validation check was failing when it shouldn\'t have been.
加载中,请稍侯......