#if defined(__mips_hard_float) #include /* * Bits 18 (NAN2008) and 19 (ABS2008) are preset by hardware and may differ * between platforms. Hence a macro to clear them before printing FCSR * values. */ #define FCSR_NAN2008 1 << 18 #define FCSR_ABS2008 1 << 19 #define FLAGS_RM_MASK 0xFFFFFFFF & ~(FCSR_ABS2008 | FCSR_NAN2008) #define CLEAR_PRESETBITS_FCSR(fcsr) (fcsr & FLAGS_RM_MASK) int main () { int out [] = {0, 0}; unsigned long long in [] = {0x405EE0A3D70A3D71ULL, 0x3FF0000000000000ULL}; __asm__ volatile("cfc1 $a1, $31" "\n\t" "ldc1 $f0, 0(%0)" "\n\t" "ctc1 $zero, $31" "\n\t" "round.w.d $f0, $f0" "\n\t" "cfc1 $a2, $31" "\n\t" "sw $a2, 0(%1)" "\n\t" "ldc1 $f0, 8(%0)" "\n\t" "ctc1 $zero, $31" "\n\t" "round.w.d $f0, $f0" "\n\t" "cfc1 $a2, $31" "\n\t" "sw $a2, 4(%1)" "\n\t" "ctc1 $a1, $31" "\n\t" : : "r" (in), "r" (out) : "a1", "a2", "t0", "$f0", "$f1" ); printf("FCSR::1: 0x%x, 2: 0x%x\n", CLEAR_PRESETBITS_FCSR(out[0]), CLEAR_PRESETBITS_FCSR(out[1])); return 0; } #else int main() { return 0; } #endif