static void save_native_fp_fsave(CPUState *env) { int fptag, i, j; uint16_t fpuc; struct fpstate fp1, *fp = &fp1; asm volatile ("fsave %0" : : "m" (*fp)); env->fpuc = fp->fpuc; env->fpstt = (fp->fpus >> 11) & 7; env->fpus = fp->fpus & ~0x3800; fptag = fp->fptag; for(i = 0;i < 8; i++) { env->fptags[i] = ((fptag & 3) == 3); fptag >>= 2; } j = env->fpstt; for(i = 0;i < 8; i++) { memcpy(&env->fpregs[j].d, &fp->fpregs1[i * 10], 10); j = (j + 1) & 7; } /* we must restore the default rounding state */ fpuc = 0x037f | (env->fpuc & (3 << 10)); asm volatile("fldcw %0" : : "m" (fpuc)); }