float64 helper_fsqrt_DT(CPUSH4State *env, float64 t0)
{
set_float_exception_flags(0, &env->fp_status);
t0 = float64_sqrt(t0, &env->fp_status);
update_fpscr(env, GETPC());
return t0;
}
uint64_t helper_fsqrt_DT(uint64_t t0)
{
CPU_DoubleU d;
d.ll = t0;
d.d = float64_sqrt(d.d, &env->fp_status);
return d.ll;
}
/* square root 64-bit RR */
void HELPER(sqdbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
{
env->fregs[f1].d = float64_sqrt(env->fregs[f2].d, &env->fpu_status);
}
void do_vfp_sqrtd(void)
{
FT0d = float64_sqrt(FT0d, &env->vfp.fp_status);
}
unsigned int DoubleCPDO(const unsigned int opcode)
{
float64 rFm, rFn;
unsigned int Fd, Fm, Fn, nRc = 1;
//printk("DoubleCPDO(0x%08x)\n",opcode);
Fm = getFm(opcode);
if (CONSTANT_FM(opcode))
{
rFm = getDoubleConstant(Fm);
}
else
{
switch (fpa11->fType[Fm])
{
case typeSingle:
rFm = float32_to_float64(fpa11->fpreg[Fm].fSingle);
break;
case typeDouble:
rFm = fpa11->fpreg[Fm].fDouble;
break;
case typeExtended:
// !! patb
//printk("not implemented! why not?\n");
//!! ScottB
// should never get here, if extended involved
// then other operand should be promoted then
// ExtendedCPDO called.
break;
default: return 0;
}
}
if (!MONADIC_INSTRUCTION(opcode))
{
Fn = getFn(opcode);
switch (fpa11->fType[Fn])
{
case typeSingle:
rFn = float32_to_float64(fpa11->fpreg[Fn].fSingle);
break;
case typeDouble:
rFn = fpa11->fpreg[Fn].fDouble;
break;
default: return 0;
}
}
Fd = getFd(opcode);
/* !! this switch isn't optimized; better (opcode & MASK_ARITHMETIC_OPCODE)>>24, sort of */
switch (opcode & MASK_ARITHMETIC_OPCODE)
{
/* dyadic opcodes */
case ADF_CODE:
fpa11->fpreg[Fd].fDouble = float64_add(rFn,rFm);
break;
case MUF_CODE:
case FML_CODE:
fpa11->fpreg[Fd].fDouble = float64_mul(rFn,rFm);
break;
case SUF_CODE:
fpa11->fpreg[Fd].fDouble = float64_sub(rFn,rFm);
break;
case RSF_CODE:
fpa11->fpreg[Fd].fDouble = float64_sub(rFm,rFn);
break;
case DVF_CODE:
case FDV_CODE:
fpa11->fpreg[Fd].fDouble = float64_div(rFn,rFm);
break;
case RDF_CODE:
case FRD_CODE:
fpa11->fpreg[Fd].fDouble = float64_div(rFm,rFn);
break;
#if 0
case POW_CODE:
fpa11->fpreg[Fd].fDouble = float64_pow(rFn,rFm);
break;
case RPW_CODE:
fpa11->fpreg[Fd].fDouble = float64_pow(rFm,rFn);
break;
#endif
case RMF_CODE:
fpa11->fpreg[Fd].fDouble = float64_rem(rFn,rFm);
break;
#if 0
case POL_CODE:
fpa11->fpreg[Fd].fDouble = float64_pol(rFn,rFm);
break;
#endif
/* monadic opcodes */
case MVF_CODE:
fpa11->fpreg[Fd].fDouble = rFm;
break;
case MNF_CODE:
{
unsigned int *p = (unsigned int*)&rFm;
p[1] ^= 0x80000000;
fpa11->fpreg[Fd].fDouble = rFm;
}
break;
case ABS_CODE:
{
unsigned int *p = (unsigned int*)&rFm;
p[1] &= 0x7fffffff;
fpa11->fpreg[Fd].fDouble = rFm;
}
break;
case RND_CODE:
case URD_CODE:
fpa11->fpreg[Fd].fDouble =
int32_to_float64(float64_to_int32(rFm));
break;
case SQT_CODE:
fpa11->fpreg[Fd].fDouble = float64_sqrt(rFm);
break;
#if 0
case LOG_CODE:
fpa11->fpreg[Fd].fDouble = float64_log(rFm);
break;
case LGN_CODE:
fpa11->fpreg[Fd].fDouble = float64_ln(rFm);
break;
case EXP_CODE:
fpa11->fpreg[Fd].fDouble = float64_exp(rFm);
break;
case SIN_CODE:
fpa11->fpreg[Fd].fDouble = float64_sin(rFm);
break;
case COS_CODE:
fpa11->fpreg[Fd].fDouble = float64_cos(rFm);
break;
case TAN_CODE:
fpa11->fpreg[Fd].fDouble = float64_tan(rFm);
break;
case ASN_CODE:
fpa11->fpreg[Fd].fDouble = float64_arcsin(rFm);
break;
case ACS_CODE:
fpa11->fpreg[Fd].fDouble = float64_arccos(rFm);
break;
case ATN_CODE:
fpa11->fpreg[Fd].fDouble = float64_arctan(rFm);
break;
#endif
case NRM_CODE:
break;
default:
{
nRc = 0;
}
}
if (0 != nRc) fpa11->fType[Fd] = typeDouble;
return nRc;
}