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fix compile bug for hc32f4a0 #286

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JeremyMo commented 2023-05-15 15:30:16 +08:00
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HC32F4A0使用FCU处理浮点计算
若要与libs7.a库兼容，需要将编译参数设置为-mfloat-abi=softfp
float-abi有三个参数可选：

  • soft:有浮点运算全部在软件层实现，效率不高，适合于早期没有浮点计算单元的ARM处理器
  • softfp:它将浮点计算交给FPU处理，但函数参数的传递使用通用的整型寄存器而不是FPU寄存器
    -hard:使用FPU浮点寄存器将函数参数传递给FPU处理
HC32F4A0使用FCU处理浮点计算 若要与libs7.a库兼容，需要将编译参数设置为`-mfloat-abi=softfp` float-abi有三个参数可选： - `soft`:有浮点运算全部在软件层实现，效率不高，适合于早期没有浮点计算单元的ARM处理器 - `softfp`:它将浮点计算交给FPU处理，但函数参数的传递使用通用的整型寄存器而不是FPU寄存器 -`hard`:使用FPU浮点寄存器将函数参数传递给FPU处理
IACU was assigned by JeremyMo 2023-05-15 15:30:16 +08:00
JeremyMo added 2 commits 2023-05-15 15:30:17 +08:00
IACU closed this pull request 2023-05-15 16:12:19 +08:00

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Reference: xuos/xiuos#286
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