FCVTPS (scalar)
Floating-point convert to signed integer, rounding toward plus infinity (scalar)
This instruction converts the floating-point value
in the SIMD&FP source register to a 32-bit or 64-bit signed integer
using the Round towards Plus Infinity rounding mode, and
writes the result to the general-purpose destination register.
A floating-point exception can be generated by this instruction.
Depending on the settings in FPCR,
the exception results in either a flag being set in FPSR,
or a synchronous exception being generated.
For more information, see
Floating-point exception traps.
Depending on the settings in the CPACR_EL1,
CPTR_EL2, and CPTR_EL3 registers,
and the current Security state and Exception level,
an attempt to execute the instruction might be trapped.
0
0
1
1
1
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
1
1
FCVTPS <Wd>, <Hn>
1
1
1
FCVTPS <Xd>, <Hn>
0
0
0
FCVTPS <Wd>, <Sn>
1
0
0
FCVTPS <Xd>, <Sn>
0
0
1
FCVTPS <Wd>, <Dn>
1
0
1
FCVTPS <Xd>, <Dn>
if ftype == '10' || (ftype == '11' && !IsFeatureImplemented(FEAT_FP16)) then UNDEFINED;
constant integer d = UInt(Rd);
constant integer n = UInt(Rn);
constant integer intsize = 32 << UInt(sf);
constant integer fltsize = 8 << UInt(ftype EOR '10');
constant FPRounding rounding = FPRounding_POSINF;
constant boolean unsigned = FALSE;
<Wd>
Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field.
<Hn>
Is the 16-bit name of the SIMD&FP source register, encoded in the "Rn" field.
<Xd>
Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.
<Sn>
Is the 32-bit name of the SIMD&FP source register, encoded in the "Rn" field.
<Dn>
Is the 64-bit name of the SIMD&FP source register, encoded in the "Rn" field.
CheckFPEnabled64();
constant bits(fltsize) fltval = V[n, fltsize];
constant integer fracbits = 0;
X[d, intsize] = FPToFixed(fltval, fracbits, unsigned, FPCR, rounding, intsize);