• Greg Ungerer's avatar
    m68k: handle presence of 64bit mul/div instructions cleanly · 84f3fb7a
    Greg Ungerer authored
    The traditional 68000 processors and the newer reduced instruction set
    ColdFire processors do not support the 32*32->64 multiply or the 64/32->32
    divide instructions. This is not a difference based on the presence of
    a hardware MMU or not.
    Create a new config symbol to mark that a CPU type doesn't support the
    longer multiply/divide instructions. Use this then as a basis for using
    the fast 64bit based divide (in div64.h) and for linking in the extra
    libgcc functions that may be required (mulsi3, divsi3, etc).
    Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
    Acked-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
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