1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
//! # SVC
//!
//! Supervisor Call causes a Supervisor Call exception. For more information, see *Supervisor Call (SVC) exception* .
#![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 IclassSvcT1
// ---------------------------------------------------------------------------
/// Type that represents the IclassSvcT1 instruction class.
pub(crate) struct IclassSvcT1;
impl IclassSvcT1 {
/// Tries to decode the instruction in `data`.
pub(crate) fn decode(data: u32, decoder: &mut Decoder) -> Result<Instruction> {
let field_11 = (data >> 9) & 7;
let field_11_post = field_11;
let imm8 = (data >> 0) & 255;
let imm8_post = imm8;
let S = (data >> 8) & 1;
let S_post = S;
let field_15 = (data >> 12) & 15;
let field_15_post = field_15;
return SvcT1::decode(data as u32, decoder);
unreachable!()
}
}
/// SVC T1 encoding.
///
/// # Encoding
///
/// <table style="font-family: courier, monospace">
/// <tr>
/// <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="1">1</td>
/// <td style="text-align: center; border-left: none; border-right: none" colspan="1">1</td>
/// <td style="text-align: center; border-left: none; 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-left: none; 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">1</td>
/// <td style="text-align: center" colspan="8">imm8</td>
/// </tr>
/// <tr>
/// <td style="text-align: center; border: none" colspan="4"></td>
/// <td style="text-align: center; border: none" colspan="3"></td>
/// <td style="text-align: center; border: none" colspan="1">S</td>
/// <td style="text-align: center; border: none" colspan="8"></td>
/// </tr>
/// </table>
pub struct SvcT1;
impl SvcT1 {
/// Returns the instruction mnemonic.
pub fn mnemonic(_instr: &Instruction) -> Mnemonic {
Mnemonic::SVC
}
/// 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 {2}
/// Decodes the instruction in `data`.
pub fn decode(data: u32, decoder: &mut Decoder) -> Result<Instruction> {
// Fields are extracted from the input value.
let imm8 = (data >> 0) & 255;
let imm8_post = imm8;
// Compute the dependency values for the operands.
let imm8_post = imm8;
// Operand values are computed from the base fields and the dependencies.
let op_0 = MnemonicCondition::Al;
let op_1 = imm8_post as u32;
// Instruction creation from the operands.
let mut instr = Instruction::builder(Code::SVC_T1)
.operand(0, op_0)?
.operand(1, op_1)?
.build();
Ok(instr)
}
pub fn encode(instr: &Instruction, buf: &mut Vec<u8>) -> Result<usize> {
// Retrieve all operand values.
let imm8_pre = instr.op1().as_unsigned_immediate()? as u32;
// Compute all instruction fields from the operand values.
let imm8_pre = imm8_pre;
let imm8 = (imm8_pre & 255);
// Add all fields to the base instruction encoding.
let mut instr: u32 = 0b1101111100000000;
instr |= (imm8 & 255) << 0;
let instr = instr as u16;
buf.extend(instr.to_le_bytes());
Ok(2)
}
/// 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::SignedImmediate(i) = op {
if *i < 0 || *i > 255 {
todo!()
}
return Ok(())
}
if let Operand::UnsignedImmediate(i) = op {
if !(0..=255).contains(i) {
todo!()
}
return Ok(())
}
todo!()
}
/// Verifies that operand #2 is valid.
pub fn check_op2(instr: &Instruction, op: &Operand) -> Result<()> {
todo!()
}
/// Verifies that operand #3 is valid.
pub fn check_op3(instr: &Instruction, op: &Operand) -> Result<()> {
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.svc_t1, &instr)?;
fmt.format_operand(output, &config.global, &config.instructions.svc_t1, &instr, 0)?;
fmt.format_qualifier(output, &config.global, &config.instructions.svc_t1, &instr, FormatterQualifier::Narrow, false, false)?;
fmt.format_punctuation(output, &config.global, &config.instructions.svc_t1, &instr, FormatterTextKind::Space)?;
fmt.format_punctuation(output, &config.global, &config.instructions.svc_t1, &instr, FormatterTextKind::NumSign)?;
;
fmt.format_operand(output, &config.global, &config.instructions.svc_t1, &instr, 1)?;
Ok(())
}
}
/// Type that represents alias identifiers for [`SvcT1`].
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Debug, Hash)]
pub enum SvcT1Aliases {
None,
}
/// Type that represents encoding identifiers for [`SvcT1`].
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Debug, Hash)]
pub enum SvcT1Encodings {
None
}