FCVTAS (scalar SIMD&FP)

Floating-point convert to signed integer, rounding to nearest with ties to away (scalar SIMD&FP)

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 to Nearest with Ties to Away rounding mode, and writes the result to the SIMD&FP destination register.

This instruction can generate a floating-point exception. 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 exceptions and 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.

Floating-point
(FEAT_FPRCVT)

Decode for all variants of this encoding

if !IsFeatureImplemented(FEAT_FPRCVT) then EndOfDecode(Decode_UNDEF); constant integer d = UInt(Rd); constant integer n = UInt(Rn); constant integer intsize = 32 << UInt(sf); constant integer fltsize = 8 << UInt(ftype EOR '10');