程序集/__asm内联

我正在学习汇编，并在我的Digital Mars C++编译器中进行一些内联。我搜索了一些东西来让程序变得更好，并用这些参数来调整程序：

use better C++ compiler//thinking of GCC or intel compiler
use assembly only in critical part of program 
find better algorithm
Cache miss, cache contention.
Loop-carried dependency chain.
Instruction fetching time.
Instruction decoding time.
Instruction retirement.
Register read stalls.
Execution port throughput.
Execution unit throughput.
Suboptimal reordering and scheduling of micro-ops.
Branch misprediction.
Floating point exception.

除了"寄存器读取暂停"，我什么都懂。

问：有人能告诉我这是如何在CPU和"超标量"形式的"无序执行"中发生的吗？正常的"无序"似乎是合乎逻辑的，但我找不到对"超标量"形式的合乎逻辑的解释

问题2：有人能给SSESSE2和更新CPU的一些好的指令列表吗？这些指令列表包括微操作表、端口吞吐量、单元和一些延迟计算表，以找到一段代码的真正瓶颈？

我会很高兴有这样一个小例子：

//loop carried dependency chain breaking:
__asm
{
loop_begin:
....
.... 
sub edx,05h //rather than taking i*5 in each iteration, we sub 5 each iteration
sub ecx,01h //i-- counter
...
...
jnz loop_begin//edit: sub ecx must have been after the sub edx for jnz
}
//while sub edx makes us get rid of a multiplication also makes that independent of ecx, making independent

谢谢。

计算机：Pentium-M 2GHz，Windows XP-32位