Syl*_*oux 17
0x12.2P2是0x122/16 10*2 2
(?)更正式地说,对于部分之前的P,你可以用这个非常经典的转换表:
decimal point here ?
+-----+-----+-----+-----+-+-----+-----+-----+
| 16³ | 16² | 16¹ | 16? | | 16?¹| 16?²| 16?³|
+-----------------------------------------+
| | | 1 | 2 |.| 2 | | |
+-----+-----+-----+-----+-+-----+-----+-----+
Run Code Online (Sandbox Code Playgroud)
所以0x12.2是1⨯16¹+2x16⁰+2⨯16-1 = 18.125
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