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中国DOS联盟论坛 The time now is 2026-08-01 22:05 |
48,037 topics / 350,122 posts / today 2 new / 48,250 members |
| DOS开发编程 & 发展交流 （开发室） » How to calculate the square root in assembly language? (Seeking help) |
| Printable Version 1,650 / 2 |
| Floor1 happyman06 | Posted 2006-09-14 21:35 |
| 初级用户 Posts 19 Credits 52 | |
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Dear experts! I would like to ask, how to calculate the square root in assembly language? It is best to provide the source code! Thanks!
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| Floor2 zyl910 | Posted 2006-09-15 04:18 |
| 中级用户 Posts 126 Credits 282 | |
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Is it an integer or a floating-point number?
What kind of assembly? Is it x86? Does it have a floating-point coprocessor? If it has an x87 floating-point coprocessor (CPUs after 486DX integrate a floating-point coprocessor), you can use the floating-point instruction FSQRT. If there is no floating-point coprocessor, you can only write your own program to calculate the square root using the Newton iteration method. When the value is not large, array look-up is a very good choice. |
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| Floor3 happyman06 | Posted 2006-09-16 12:05 |
| 初级用户 Posts 19 Credits 52 | |
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