ywhwang / cbfi Goto Github PK

cbfi gcc required, just make.

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conversion between float point and its' binary layout This tiny tool DO NOT guarantee the correct result for rounding. It main focus on the binary layout in memory or internal structure of one float point.

Format: cbfi 0xXXXXXXXX Means convert binary layout to float point, only 16, 32, 64 bits is valid. cbfi XXXXX.XX Means convert to binary layout of float point Also, you can use -d option to show more information you may need.

Sample: <22>pli[9903]@~/Workspace/project/cbfi*1 > cbfi 1.0 half float point[16]: 0X3C00 single float point[32]: 0X3F800000 double float point[64]: 0X3FF0000000000000

<24>pli[9904]@~/Workspace/project/cbfi*1 > cbfi 1.0 -d half float point[16]: 0X3C00 Hexadecimal Decimal Binary |sign: 0000000000000000 0000000000000000 0B |exp : 000000000000000f 0000000000000015 01111B |frac: 0000000000000000 0000000000000000 0000000000B

single float point[32]: 0X3F800000 Hexadecimal Decimal Binary |sign: 0000000000000000 0000000000000000 0B |exp : 000000000000007f 0000000000000127 01111111B |frac: 0000000000000000 0000000000000000 00000000000000000000000B

double float point[64]: 0X3FF0000000000000 Hexadecimal Decimal Binary |sign: 0000000000000000 0000000000000000 0B |exp : 00000000000003ff 0000000000001023 01111111111B |frac: 0000000000000000 0000000000000000 0000000000000000000000000000000000000000000000000000B

<26>pli[9905]@/Workspace/project/cbfi*1 > cbfi 0x7c00 half float point[16]: inf <27>pli[9906]@/Workspace/project/cbfi*1 > cbfi 0x7c00 -d half float point[16]: inf Hexadecimal Decimal Binary |sign: 0000000000000000 0000000000000000 0B |exp : 000000000000001f 0000000000000031 11111B |frac: 0000000000000000 0000000000000000 0000000000B

<40>pli[9901]@/Workspace/project/cbfi*1 > cbfi 0x47dc0024 single float point[32]: 112640.2812500000000000 <41>pli[9902]@/Workspace/project/cbfi*1 > cbfi 0x47dc0024 -d single float point[32]: 112640.2812500000000000 Hexadecimal Decimal Binary |sign: 0000000000000000 0000000000000000 0B |exp : 000000000000008f 0000000000000143 10001111B |frac: 00000000005c0024 0000000006029348 10111000000000000100100B