3 ms·
This code: #define CSR_FLUSH_TO_ZERO (1 << 15) unsigned csr = __builtin_ia32_stmxcsr(); csr |= CSR_FLUSH_TO_ZERO; __builtin_ia32_ldmxcs
by imurray 8y ago
This code:
#define CSR_FLUSH_TO_ZERO (1 << 15)
unsigned csr = __builtin_ia32_stmxcsr();
csr |= CSR_FLUSH_TO_ZERO;
__builtin_ia32_ldmxcsr(csr);
from https://stackoverflow.com/a/8217313/ https://stackoverflow.com/a/8217313/ seems to work for me with gcc. I don't know how widely supported it would be.