From 15a12c78353db700ffb96f454e528a5b6afb4f1d Mon Sep 17 00:00:00 2001 From: iximeow Date: Mon, 27 Dec 2021 17:49:01 -0800 Subject: fix Advanced SIMD Scalar Three Same --- src/armv8/a64.rs | 117 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 62 insertions(+), 55 deletions(-) (limited to 'src') diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs index 70dcfcd..abe0cae 100644 --- a/src/armv8/a64.rs +++ b/src/armv8/a64.rs @@ -1578,6 +1578,9 @@ impl Display for Instruction { Opcode::FCVTL => { write!(fmt, "fcvtl"); } + Opcode::FCVTL2 => { + write!(fmt, "fcvtl2"); + } Opcode::FCVTNS => { write!(fmt, "fcvtns"); } @@ -2177,6 +2180,7 @@ pub enum Opcode { FCVTN, FCMGT, FCVTL, + FCVTL2, FCVTNS, FCVTPS, FCVTMS, @@ -3801,7 +3805,11 @@ impl Decoder for InstDecoder { (opc, table[(((size & 1) << 1) | q) as usize]?) }; - inst.opcode = opc; + if opc == Opcode::FCVTL && q != 0 { + inst.opcode = Opcode::FCVTL2; + } else { + inst.opcode = opc; + } inst.operands = [ Operand::SIMDRegisterElements(datasize_a, Rd as u16, elemsize_a), Operand::SIMDRegisterElements(datasize_b, Rn as u16, elemsize_b), @@ -4291,7 +4299,6 @@ impl Decoder for InstDecoder { Operand::Nothing, ]; } -// return Err(DecodeError::IncompleteDecoder); } else if (op3 & 0b000_111111) == 0b000_000000 { // op2 = x1xx, op3 = xxx000000 // `Conversion between floating-point and fixed-point` @@ -4829,11 +4836,11 @@ impl Decoder for InstDecoder { } else if opcode < 0b11000 { // TODO: validate operands const OPCODES_U0_LOW: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>] = &[ - Ok((Opcode::SHADD, TABLE_A)), + Err(DecodeError::InvalidOpcode), Ok((Opcode::SQADD, TABLE_A)), - Ok((Opcode::SRHADD, TABLE_A)), Err(DecodeError::InvalidOpcode), - Ok((Opcode::SHSUB, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::SQSUB, TABLE_A)), Ok((Opcode::CMGT, TABLE_A)), Ok((Opcode::CMGE, TABLE_A)), @@ -4841,25 +4848,25 @@ impl Decoder for InstDecoder { Ok((Opcode::SQSHL, TABLE_A)), Ok((Opcode::SRSHL, TABLE_A)), Ok((Opcode::SQRSHL, TABLE_A)), - Ok((Opcode::SMAX, TABLE_A)), - Ok((Opcode::SMIN, TABLE_A)), - Ok((Opcode::SABD, TABLE_A)), - Ok((Opcode::SABA, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::ADD, TABLE_A)), Ok((Opcode::CMTST, TABLE_A)), - Ok((Opcode::MLA, TABLE_A)), - Ok((Opcode::MUL, TABLE_A)), - Ok((Opcode::SMAXP, TABLE_A)), - Ok((Opcode::SMINP, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::SQDMULH, TABLE_A)), - Ok((Opcode::ADDP, TABLE_A)), + Err(DecodeError::InvalidOpcode), ]; const OPCODES_U1_LOW: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>] = &[ - Ok((Opcode::UHADD, TABLE_A)), + Err(DecodeError::InvalidOpcode), Ok((Opcode::UQADD, TABLE_A)), - Ok((Opcode::URHADD, TABLE_A)), Err(DecodeError::InvalidOpcode), - Ok((Opcode::UHSUB, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::UQSUB, TABLE_A)), Ok((Opcode::CMHI, TABLE_A)), Ok((Opcode::CMHS, TABLE_A)), @@ -4867,16 +4874,16 @@ impl Decoder for InstDecoder { Ok((Opcode::UQSHL, TABLE_A)), Ok((Opcode::URSHL, TABLE_A)), Ok((Opcode::UQRSHL, TABLE_A)), - Ok((Opcode::UMAX, TABLE_A)), - Ok((Opcode::UMIN, TABLE_A)), - Ok((Opcode::UABD, TABLE_A)), - Ok((Opcode::UABA, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::SUB, TABLE_A)), Ok((Opcode::CMEQ, TABLE_A)), - Ok((Opcode::MLS, TABLE_A)), - Ok((Opcode::PMUL, TABLE_A)), - Ok((Opcode::UMAXP, TABLE_A)), - Ok((Opcode::UMINP, TABLE_A)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::SQRDMULH, TABLE_A)), Err(DecodeError::InvalidOpcode), ]; @@ -4889,48 +4896,49 @@ impl Decoder for InstDecoder { let (va_width, va_elem, vb_width, vb_elem) = table[((size << 1) | q) as usize]?; inst.opcode = opcode; inst.operands = [ - Operand::SIMDRegisterElements(va_width, Rd as u16, va_elem), - Operand::SIMDRegisterElements(vb_width, Rn as u16, vb_elem), - Operand::SIMDRegisterElements(vb_width, Rm as u16, vb_elem), + Operand::SIMDRegister(va_elem, Rd as u16), + Operand::SIMDRegister(vb_elem, Rn as u16), + Operand::SIMDRegister(vb_elem, Rm as u16), Operand::Nothing, ] } else { // indexed by ((opcode - 0b11000) << 1) | (size >> 1) - const OPCODES_U0_HIGH: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>] = &[ - Ok((Opcode::FMAXNM, TABLE_C)), - Ok((Opcode::FMINNM, TABLE_C)), - Ok((Opcode::FMLA, TABLE_C)), - Ok((Opcode::FMLS, TABLE_C)), - Ok((Opcode::FADD, TABLE_C)), - Ok((Opcode::FSUB, TABLE_C)), + const OPCODES_U0_HIGH: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>; 16] = &[ + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Ok((Opcode::FMULX, TABLE_C)), Err(DecodeError::InvalidOpcode), Ok((Opcode::FCMEQ, TABLE_C)), Err(DecodeError::InvalidOpcode), - Ok((Opcode::FMLAL, TABLE_C)), // only if size & 0b01 is 0 - Ok((Opcode::FMLSL, TABLE_C)), // only if size & 0b01 is 0 - Ok((Opcode::FMAX, TABLE_C)), - Ok((Opcode::FMIN, TABLE_C)), - Ok((Opcode::FRECPS, TABLE_C)), - Ok((Opcode::FRSQRTS, TABLE_C)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), ]; - const OPCODES_U1_HIGH: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>] = &[ - Ok((Opcode::FMAXNMP, TABLE_C)), - Ok((Opcode::FMINNMP, TABLE_C)), - Ok((Opcode::FMLAL2, TABLE_C)), - Ok((Opcode::FMLSL2, TABLE_C)), + const OPCODES_U1_HIGH: &[Result<(Opcode, &'static OperandSizeTable), DecodeError>; 16] = &[ + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + // 0b11010 Err(DecodeError::InvalidOpcode), - Ok((Opcode::FADDP, TABLE_C)), Ok((Opcode::FABD, TABLE_C)), - Ok((Opcode::FMUL, TABLE_C)), Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + // 0b11100 Ok((Opcode::FCMGE, TABLE_C)), Ok((Opcode::FCMGT, TABLE_C)), Ok((Opcode::FACGE, TABLE_C)), Ok((Opcode::FACGT, TABLE_C)), - Ok((Opcode::FMAXP, TABLE_C)), - Ok((Opcode::FMINP, TABLE_C)), - Ok((Opcode::FDIV, TABLE_C)), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), + Err(DecodeError::InvalidOpcode), Err(DecodeError::InvalidOpcode), ]; let index = ((opcode - 0b11000) << 1) | (size >> 1); @@ -4944,13 +4952,12 @@ impl Decoder for InstDecoder { let (va_width, va_elem, vb_width, vb_elem) = table[(((size & 0b01) << 1) | q) as usize]?; inst.opcode = opcode; inst.operands = [ - Operand::SIMDRegisterElements(va_width, Rd as u16, va_elem), - Operand::SIMDRegisterElements(vb_width, Rn as u16, vb_elem), - Operand::SIMDRegisterElements(vb_width, Rm as u16, vb_elem), + Operand::SIMDRegister(va_elem, Rd as u16), + Operand::SIMDRegister(vb_elem, Rn as u16), + Operand::SIMDRegister(vb_elem, Rm as u16), Operand::Nothing, ] }; -// return Err(DecodeError::IncompleteDecoder); } else { if op3 & 0b10 == 0b00 { // `Advanced SIMD scalar three different` -- cgit v1.1