Dennis Christensen, BASM for Beginners 《BASM 初学者入门》
目 录
Introduction to BASM for Beginners BASM 入门教程简介..........................................................2
Lesson 1 第 1 课(整数运算).......................................................................................................4
Lesson 2 第 2 课(符点数运算)...................................................................................................8
Lesson 3 第 3 课(64 位运算,MMX,SSE2 指令).........................................................................19
Lesson 4 第 4 课(分支语句if-else).......................................................................................26
Lesson 5 第 5 课(循环语句).....................................................................................................37
Lesion 6 第 6 课(CharPos).......................................................................................................60
Lesson 7 第 7 课(高级符点数运算).........................................................................................92
译者注 ..........................................................................................................................................142
Introduction to BASM for Beginners BASM 入门教程简介
The series of articles named “BASM for beginners” currently consists of 7
articles and no. 8 and 9 are in progress. Common for the articles, and coming
articles, is that they explain some BASM issues by use of an example function.
Most often this function is first implemented in Pascal and then the compiler
generated assembler code is copied from the CPU view in Delphi and then analyzed
and optimized. Sometimes optimization involves the usage of MMX, SSE or SSE2
instructions.
“BASM 入门教程”系列文章当前包含 7 课。第 8 课和第 9 课正在完成中。
（译者注：从已获得的资料看，第 8，9 早在 2003 年已经完成，第 8，9 主要介绍了
64 位数据操作与 MMX 指令，暂不打算翻译）。
这些文章通过函数实例来介绍 BASM。通常，这些函数首先使用 Pascal 编写，然后从
Delphi 编译器的 CPU 窗口中复制汇编代码，之后进行分析和优化。也包括使用 MMX, SSE
或 SSE2 指令的优化。
By taking the code made by the compiler from a Pascal function the most commonly
used instructions from the big 32-bit Intel Architecture instruction set are
introduced to the beginner first. Seeing which code the compiler generates is
leading to a valuable insight in the effectiveness of compiler generated code in
general and into the Delphi compiler specifically.
通过借用编译器编译 Pascal 函数产生的汇编代码，为初学者介绍了大 32 位 Intel 体系
结构指令集。研究编译器产生的代码将使我们更清楚编译器产生的代码的效率，同时有助于
了解 Delphi 编译器的特点。
As specific assembly code optimizations are introduced generalizations will be
introduced when suitable. These general optimizations are suitable for
implementation in compilers and most compilers including Delphi have them. At
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