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//! # ASRS (register)
//!
//! Arithmetic Shift Right, setting flags (register) shifts a register value right by a variable number of bits, shifting in copies of its sign bit, writes the result to the destination register, and updates the condition flags based on the result. The variable number of bits is read from the bottom byte of a register.
#![allow(non_snake_case)]
#![allow(unused)]
use crate::error::Result;
use crate::utils::*;
use super::super::formatter::*;
use super::super::instruction::*;
use super::super::operand::*;
use super::super::consts::*;
use super::super::config::*;
use super::super::decoder::*;
// ---------------------------------------------------------------------------
// Iclass IclassMovsRrA1Alias
// ---------------------------------------------------------------------------
/// Type that represents the IclassMovsRrA1Alias instruction class.
pub(crate) struct IclassMovsRrA1Alias;
impl IclassMovsRrA1Alias {
/// Tries to decode the instruction in `data`.
pub(crate) fn decode(data: u32, decoder: &mut Decoder) -> Result<Instruction> {
let stype = (data >> 5) & 3;
let stype_post = stype;
let Rm = (data >> 0) & 15;
let Rm_post = Rm;
let S = (data >> 20) & 1;
let S_post = S;
let opc = (data >> 21) & 3;
let opc_post = opc;
let Rs = (data >> 8) & 15;
let Rs_post = Rs;
let Rd = (data >> 12) & 15;
let Rd_post = Rd;
let Rn = (data >> 16) & 15;
let Rn_post = Rn;
let field_25 = (data >> 25) & 1;
let field_25_post = field_25;
let field_4 = (data >> 4) & 1;
let field_4_post = field_4;
let field_27 = (data >> 26) & 3;
let field_27_post = field_27;
let field_24 = (data >> 23) & 3;
let field_24_post = field_24;
let cond = (data >> 28) & 15;
let cond_post = cond;
let field_7 = (data >> 7) & 1;
let field_7_post = field_7;
return AsrsMovsRrA1::decode(data as u32, decoder);
unreachable!()
}
}
/// ASRS A1 encoding.
///
/// # Encoding
///
/// <table style="font-family: courier, monospace">
/// <tr>
/// <td style="border: none">31</td>
/// <td style="border: none">30</td>
/// <td style="border: none">29</td>
/// <td style="border: none">28</td>
/// <td style="border: none">27</td>
/// <td style="border: none">26</td>
/// <td style="border: none">25</td>
/// <td style="border: none">24</td>
/// <td style="border: none">23</td>
/// <td style="border: none">22</td>
/// <td style="border: none">21</td>
/// <td style="border: none">20</td>
/// <td style="border: none">19</td>
/// <td style="border: none">18</td>
/// <td style="border: none">17</td>
/// <td style="border: none">16</td>
/// <td style="border: none">15</td>
/// <td style="border: none">14</td>
/// <td style="border: none">13</td>
/// <td style="border: none">12</td>
/// <td style="border: none">11</td>
/// <td style="border: none">10</td>
/// <td style="border: none">9</td>
/// <td style="border: none">8</td>
/// <td style="border: none">7</td>
/// <td style="border: none">6</td>
/// <td style="border: none">5</td>
/// <td style="border: none">4</td>
/// <td style="border: none">3</td>
/// <td style="border: none">2</td>
/// <td style="border: none">1</td>
/// <td style="border: none">0</td>
/// </tr>
/// <tr>
/// <td style="text-align: center; border-right: none" colspan="4">!= 1111</td>
/// <td style="text-align: center; border-right: none" colspan="1">0</td>
/// <td style="text-align: center; border-left: none" colspan="1">0</td>
/// <td style="text-align: center; border-right: none" colspan="1">0</td>
/// <td style="text-align: center; border-right: none" colspan="1">1</td>
/// <td style="text-align: center; border-left: none" colspan="1">1</td>
/// <td style="text-align: center; border-right: none" colspan="1">0</td>
/// <td style="text-align: center; border-left: none" colspan="1">1</td>
/// <td style="text-align: center; border-right: none" colspan="1">1</td>
/// <td style="text-align: center; border-right: none" colspan="3">(0)</td>
/// <td style="text-align: center; border-left: none; border-right: none" colspan="3">(0)</td>
/// <td style="text-align: center; border-left: none; border-right: none" colspan="3">(0)</td>
/// <td style="text-align: center; border-left: none" colspan="3">(0)</td>
/// <td style="text-align: center" colspan="4">Rd</td>
/// <td style="text-align: center" colspan="4">Rs</td>
/// <td style="text-align: center; border-right: none" colspan="1">0</td>
/// <td style="text-align: center; border-right: none" colspan="1">1</td>
/// <td style="text-align: center; border-left: none" colspan="1">0</td>
/// <td style="text-align: center; border-right: none" colspan="1">1</td>
/// <td style="text-align: center" colspan="4">Rm</td>
/// </tr>
/// <tr>
/// <td style="text-align: center; border: none" colspan="4">cond</td>
/// <td style="text-align: center; border: none" colspan="2"></td>
/// <td style="text-align: center; border: none" colspan="1"></td>
/// <td style="text-align: center; border: none" colspan="2"></td>
/// <td style="text-align: center; border: none" colspan="2">opc</td>
/// <td style="text-align: center; border: none" colspan="1">S</td>
/// <td style="text-align: center; border: none" colspan="4">Rn</td>
/// <td style="text-align: center; border: none" colspan="4"></td>
/// <td style="text-align: center; border: none" colspan="4"></td>
/// <td style="text-align: center; border: none" colspan="1"></td>
/// <td style="text-align: center; border: none" colspan="2">stype</td>
/// <td style="text-align: center; border: none" colspan="1"></td>
/// <td style="text-align: center; border: none" colspan="4"></td>
/// </tr>
/// </table>
pub struct AsrsMovsRrA1;
impl AsrsMovsRrA1 {
/// Returns the instruction mnemonic.
pub fn mnemonic(_instr: &Instruction) -> Mnemonic {
Mnemonic::ASRS
}
/// Returns the instruction condition information.
pub fn condition(_instr: &Instruction) -> ConditionalInstruction {
ConditionalInstruction::Condition(0, false, false)
}
/// Returns the instruction size.
pub fn size(instr: &Instruction) -> usize {
4
}
/// Decodes the instruction in `data`.
pub fn decode(data: u32, decoder: &mut Decoder) -> Result<Instruction> {
// Fields are extracted from the input value.
let cond = (data >> 28) & 15;
let cond_post = cond;
let Rd = (data >> 12) & 15;
let Rd_post = Rd;
let Rs = (data >> 8) & 15;
let Rs_post = Rs;
let Rm = (data >> 0) & 15;
let Rm_post = Rm;
// Operand values are computed from the base fields.
let cond_post = cond;
let op_0 = MnemonicCondition::decode(cond_post)?;
let Rd_post = Rd;
let op_1 = Register::decode(Rd_post)?;
let Rm_post = Rm;
let op_2 = Register::decode(Rm_post)?;
let Rs_post = Rs;
let op_3 = Register::decode(Rs_post)?;
// Instruction creation from the operands.
let mut instr = Instruction::builder(Code::ASRS_MOVS_rr_A1)
.operand(0, op_0)?
.operand(1, op_1)?
.operand(2, op_2)?
.operand(3, op_3)?
.build();
Ok(instr)
}
/// Encodes the instruction into `buf`.
pub fn encode(instr: &Instruction, buf: &mut Vec<u8>) -> Result<usize> {
// Retrieve all operand values.
let cond_pre = instr.op0().as_mnemonic_condition()?.encode();
let Rd_pre = instr.op1().as_register()?.encode();
let Rm_pre = instr.op2().as_register()?.encode();
let Rs_pre = instr.op3().as_register()?.encode();
// Compute all instruction fields from the operand values.
let cond = (cond_pre & 15);
let Rd = (Rd_pre & 15);
let Rm = (Rm_pre & 15);
let Rs = (Rs_pre & 15);
// Add all fields to the base instruction encoding.
let mut instr: u32 = 0b00000001101100000000000001010000;
instr |= (cond & 15) << 28;
instr |= (Rd & 15) << 12;
instr |= (Rm & 15) << 0;
instr |= (Rs & 15) << 8;
let bytes = instr.to_le_bytes();
let len = bytes.len();
buf.extend(bytes);
Ok(len)
}
/// Encode an instruction part of an instruction block into `buf`.
pub fn encode_block(instr: &mut Instruction, buf: &mut Vec<u8>, labels: &std::collections::HashMap<u64, u64>) -> Result<usize> {
Self::encode(instr, buf)
}
/// Verifies that operand #0 is valid.
pub fn check_op0(instr: &Instruction, op: &Operand) -> Result<()> {
if let Operand::MnemonicCondition(r) = op {
return Ok(())
}
todo!()
}
/// Verifies that operand #1 is valid.
pub fn check_op1(instr: &Instruction, op: &Operand) -> Result<()> {
if let Operand::Register(r) = op {
return Ok(())
}
todo!()
}
/// Verifies that operand #2 is valid.
pub fn check_op2(instr: &Instruction, op: &Operand) -> Result<()> {
if let Operand::Register(r) = op {
return Ok(())
}
todo!()
}
/// Verifies that operand #3 is valid.
pub fn check_op3(instr: &Instruction, op: &Operand) -> Result<()> {
if let Operand::Register(r) = op {
return Ok(())
}
todo!()
}
/// Verifies that operand #4 is valid.
pub fn check_op4(instr: &Instruction, op: &Operand) -> Result<()> {
todo!()
}
/// Verifies that operand #5 is valid.
pub fn check_op5(instr: &Instruction, op: &Operand) -> Result<()> {
todo!()
}
/// Verifies that operand #6 is valid.
pub fn check_op6(instr: &Instruction, op: &Operand) -> Result<()> {
todo!()
}
/// Formats the instruction.
pub fn format(instr: &Instruction, fmt: &mut impl Formatter, output: &mut impl FormatterOutput, config: &Config) -> Result<()> {
fmt.format_mnemonic(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr)?;
fmt.format_operand(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, 0)?;
fmt.format_qualifier(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, FormatterQualifier::Wide, false, false)?;
fmt.format_punctuation(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, FormatterTextKind::Space)?;
if !instr.op1().is_none() {
fmt.format_operand(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, 1)?;
fmt.format_punctuation(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, FormatterTextKind::Comma)?;
};
fmt.format_operand(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, 2)?;
fmt.format_punctuation(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, FormatterTextKind::Comma)?;
fmt.format_operand(output, &config.global, &config.instructions.asrs_movs_rr_a1, &instr, 3)?;
Ok(())
}
}
/// Type that represents alias identifiers for [`AsrsMovsRrA1`].
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Debug, Hash)]
pub enum AsrsMovsRrA1Aliases {
None,
}
/// Type that represents encoding identifiers for [`AsrsMovsRrA1`].
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Debug, Hash)]
pub enum AsrsMovsRrA1Encodings {
None
}