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corestar's avatar
corestar
Icon for Contributor rankContributor
7 years ago

How to use hard "Float ABI" ?

By default, the DS-5 GCC compiler sets the GCC compiler and assembler to use "Float ABI" of "softfp". Since this generates very slow floating point code (about 10 times slower than Zynq), I tried setting it to "hard". But the errors shown below.

2 Replies

  • FawazJ_Altera's avatar
    FawazJ_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    7 years ago

    Hello,

    Can you change the compiler to armcc instead of gcc?

    Please let me know if this helps.

    Thanks

  • corestar's avatar
    corestar
    Icon for Contributor rankContributor
    7 years ago

    I managed to change to ARM C Compiler 5 and it does in fact seem to use hardware floating point. It sets "Floating-point PCS" to "Hardware" and "--apcs=/hardfp".

    I'm having trouble getting the FreeRTOS Cyclone V port to wort with it though.