X86_FP_REGISTER_END
else if (index >= X86_REGISTER_ST0 && index < X86_FP_REGISTER_END)
if (index < X86_REGISTER_ST0 || index >= X86_FP_REGISTER_END
if (index < X86_REGISTER_ST0 || index >= X86_FP_REGISTER_END)
#define X86_FP_REGISTER_COUNT (X86_FP_REGISTER_END - X86_INT_REGISTER_END)
#define X86_MMX_REGISTER_COUNT (X86_MMX_REGISTER_END - X86_FP_REGISTER_END)