FMOV (general)

Floating-point Move to or from general-purpose register without conversion. This instruction transfers the contents of a SIMD&FP register to a general-purpose register, or the contents of a general-purpose register to a SIMD&FP register.

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.

if ftype == '10' && opcode<2:1>:rmode != '11 01' then UNDEFINED; if ftype == '11' && !IsFeatureImplemented(FEAT_FP16) then UNDEFINED; integer d = UInt(Rd); integer n = UInt(Rn); constant integer intsize = 32 << UInt(sf); constant integer decode_fltsize = if ftype == '10' then 64 else (8 << UInt(ftype EOR '10')); FPConvOp op; FPRounding rounding; boolean unsigned; integer part; case opcode<2:1>:rmode of when '00 xx' // FCVT[NPMZ][US] rounding = FPDecodeRounding(rmode); unsigned = (opcode<0> == '1'); op = FPConvOp_CVT_FtoI; when '01 00' // [US]CVTF rounding = FPRoundingMode(FPCR); unsigned = (opcode<0> == '1'); op = FPConvOp_CVT_ItoF; when '10 00' // FCVTA[US] rounding = FPRounding_TIEAWAY; unsigned = (opcode<0> == '1'); op = FPConvOp_CVT_FtoI; when '11 00' // FMOV if decode_fltsize != 16 && decode_fltsize != intsize then UNDEFINED; op = if opcode<0> == '1' then FPConvOp_MOV_ItoF else FPConvOp_MOV_FtoI; part = 0; when '11 01' // FMOV D[1] if intsize != 64 || ftype != '10' then UNDEFINED; op = if opcode<0> == '1' then FPConvOp_MOV_ItoF else FPConvOp_MOV_FtoI; part = 1; when '11 11' // FJCVTZS if !IsFeatureImplemented(FEAT_JSCVT) then UNDEFINED; rounding = FPRounding_ZERO; unsigned = (opcode<0> == '1'); op = FPConvOp_CVT_FtoI_JS; otherwise UNDEFINED;