5 files changed, 342 insertions, 0 deletions
diff --git a/src/test/arm32/arm_encode.rs b/src/test/arm32/arm_encode.rs
new file mode 100644
index 0000000..c16a93f
--- /dev/null
+++ b/src/test/arm32/arm_encode.rs
@@ -0,0 +1,72 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of Pollex.
+//
+// Pollex is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Af-
+// fero General Public License as published by the
+// Free Software Foundation, either version 3 of
+// the License, or (at your option) any later ver-
+// sion.
+//
+// Pollex is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Af-
+// fero General Public License along with Pollex.
+// If not, see <https://www.gnu.org/licenses/>.
+
+use crate::arm32::{
+ Sflag,
+ Instruction,
+ InstructionCodec,
+ Predicate,
+ Register,
+ Shifter,
+};
+
+use alloc::vec::Vec;
+
+#[test]
+fn test_arm_encode() {
+ let tree = [
+ Instruction::BranchLink {
+ predicate: Predicate::HigherOrSame,
+ source: 0x1F,
+ },
+
+ Instruction::Breakpoint {
+ immediate: 0x45,
+ },
+
+ Instruction::SoftwareInterrupt {
+ predicate: Predicate::Always,
+ immediate: 0x54,
+ },
+
+ Instruction::Move {
+ predicate: Predicate::Plus,
+ destination: Register::Pc,
+ source: Shifter::ArithmeticShiftRightImmediate { source: Register::R3, shift: 0x20 },
+ s: Sflag::On,
+ },
+ ];
+
+ let mut codec = InstructionCodec::new_at(0x08000000);
+
+ let mut opcodes = Vec::new();
+ for instruction in tree { opcodes.push(codec.encode_arm(instruction).unwrap()) }
+
+ assert_eq!(
+ opcodes,
+ [
+ 0b00101010_00000000_00000000_00000000,
+ 0b11100001_00100000_00000100_01110101,
+ 0b11101111_00000000_00000000_01010100,
+ 0b01010001_10110000_11110000_01000011,
+ ],
+ )
+}
diff --git a/src/test/arm32/instruction_display.rs b/src/test/arm32/instruction_display.rs
new file mode 100644
index 0000000..4f834ef
--- /dev/null
+++ b/src/test/arm32/instruction_display.rs
@@ -0,0 +1,114 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of Pollex.
+//
+// Pollex is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Af-
+// fero General Public License as published by the
+// Free Software Foundation, either version 3 of
+// the License, or (at your option) any later ver-
+// sion.
+//
+// Pollex is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Af-
+// fero General Public License along with Pollex.
+// If not, see <https://www.gnu.org/licenses/>.
+
+use crate::arm32::{
+ Predicate,
+ Sflag,
+ Instruction,
+ Register,
+ Shifter,
+};
+
+use alloc::string::ToString;
+use alloc::vec::Vec;
+
+#[test]
+fn test_instruction_display() {
+ let tree = [
+ Instruction::Add {
+ predicate: Predicate::GreaterThanOrEqual,
+ destination: Register::R1,
+ base: Register::R2,
+ source: Shifter::RotateRightImmediate { source: Register::R3, shift: 0x2 },
+ s: Sflag::Off,
+ },
+
+ Instruction::SaturatingSubtract {
+ predicate: Predicate::LessThan,
+ destination: Register::R4,
+ base: Register::R5,
+ source: Register::R6,
+ },
+
+ Instruction::InclusiveOr {
+ predicate: Predicate::Always,
+ destination: Register::R7,
+ base: Register::R8,
+ source: Shifter::LogicalShiftLeftImmediate { source: Register::R9, shift: 0x0 },
+ s: Sflag::On,
+ },
+
+ Instruction::MultiplyAccumulate {
+ predicate: Predicate::Equal,
+ destination: Register::R0,
+ base: Register::Pc,
+ source: Register::Pc,
+ shift: Register::Lr,
+ s: Sflag::Off,
+ },
+
+ Instruction::Move {
+ predicate: Predicate::NotEqual,
+ destination: Register::R0,
+ source: Shifter::LogicalShiftLeftImmediate { source: Register::Pc, shift: 0x0 },
+ s: Sflag::Off,
+ },
+
+ Instruction::ReverseSubtract {
+ predicate: Predicate::Always,
+ destination: Register::R0,
+ base: Register::R0,
+ source: Shifter::Immediate(0x0),
+ s: Sflag::On,
+ },
+
+ Instruction::Move {
+ predicate: Predicate::GreaterThan,
+ destination: Register::R0,
+ source: Shifter::LogicalShiftRightImmediate { source: Register::R7, shift: 0x20 },
+ s: Sflag::On,
+ },
+
+ Instruction::Move {
+ predicate: Predicate::Always,
+ destination: Register::R0,
+ source: Shifter::LogicalShiftLeftImmediate { source: Register::R0, shift: 0x0 },
+ s: Sflag::On,
+ },
+ ];
+
+ let mut displays = Vec::with_capacity(tree.len());
+ for instruction in tree { displays.push(instruction.to_string()) }
+
+ assert_eq!(
+ displays,
+ [
+ "ADDGE r1, r2, r3, ROR #2",
+ "QSUBLT r4, r5, r6",
+ "ORRS r7, r8, r9",
+ "MLAEQ r0, pc, pc, lr",
+ "CPYNE r0, pc",
+ "NEGS r0, r0",
+ "LSRGTS r0, r7, #32",
+ "MOVS r0, r0",
+ ],
+ );
+}
diff --git a/src/test/arm32/mod.rs b/src/test/arm32/mod.rs
new file mode 100644
index 0000000..f7270a9
--- /dev/null
+++ b/src/test/arm32/mod.rs
@@ -0,0 +1,25 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of Pollex.
+//
+// Pollex is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Af-
+// fero General Public License as published by the
+// Free Software Foundation, either version 3 of
+// the License, or (at your option) any later ver-
+// sion.
+//
+// Pollex is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Af-
+// fero General Public License along with Pollex.
+// If not, see <https://www.gnu.org/licenses/>.
+
+mod arm_encode;
+mod instruction_display;
+mod thumb_decode;
+mod thumb_encode;
+\ No newline at end of file
diff --git a/src/test/arm32/thumb_decode.rs b/src/test/arm32/thumb_decode.rs
new file mode 100644
index 0000000..eff61d2
--- /dev/null
+++ b/src/test/arm32/thumb_decode.rs
@@ -0,0 +1,57 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of Pollex.
+//
+// Pollex is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Af-
+// fero General Public License as published by the
+// Free Software Foundation, either version 3 of
+// the License, or (at your option) any later ver-
+// sion.
+//
+// Pollex is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Af-
+// fero General Public License along with Pollex.
+// If not, see <https://www.gnu.org/licenses/>.
+
+use crate::arm32::{
+ Instruction,
+ InstructionCodec,
+ Predicate,
+ Register,
+};
+
+use alloc::vec::Vec;
+
+#[test]
+fn test_thumb_decode() {
+ let binary = [
+ 0b11011111_10101010,
+ 0b01000111_01110000,
+ ];
+
+ let mut codec = InstructionCodec::new();
+
+ let mut programme = Vec::new();
+ for opcode in binary { programme.push(codec.decode_thumb(opcode.into()).unwrap()) }
+
+ assert_eq!(
+ programme,
+ [
+ Instruction::SoftwareInterrupt {
+ predicate: Predicate::Always,
+ immediate: 0b10101010,
+ },
+
+ Instruction::BranchExchange {
+ predicate: Predicate::Always,
+ source: Register::Lr,
+ },
+ ],
+ )
+}
diff --git a/src/test/arm32/thumb_encode.rs b/src/test/arm32/thumb_encode.rs
new file mode 100644
index 0000000..178b938
--- /dev/null
+++ b/src/test/arm32/thumb_encode.rs
@@ -0,0 +1,74 @@
+// Copyright 2024 Gabriel Bjørnager Jensen.
+//
+// This file is part of Pollex.
+//
+// Pollex is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Af-
+// fero General Public License as published by the
+// Free Software Foundation, either version 3 of
+// the License, or (at your option) any later ver-
+// sion.
+//
+// Pollex is distributed in the hope that it will
+// be useful, but WITHOUT ANY WARRANTY; without
+// even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Af-
+// fero General Public License along with Pollex.
+// If not, see <https://www.gnu.org/licenses/>.
+
+use crate::arm32::{
+ Instruction,
+ InstructionCodec,
+ Predicate,
+ Register,
+ Sflag,
+ Shifter,
+};
+
+use alloc::vec::Vec;
+
+#[test]
+fn test_thumb_encode() {
+ let programme = [
+ Instruction::BranchLink {
+ predicate: Predicate::Always,
+ source: 0x08000044,
+ },
+
+ Instruction::And {
+ predicate: Predicate::Always,
+ destination: Register::R0,
+ base: Register::R0,
+ source: Shifter::LogicalShiftLeftImmediate { source: Register::R7, shift: 0x0 },
+ s: Sflag::On,
+ },
+
+ Instruction::Branch {
+ predicate: Predicate::Always,
+ immediate: 0x08000008,
+ },
+ ];
+
+ let mut codec = InstructionCodec::new_at(0x08000000);
+
+ let mut opcodes = Vec::new();
+ for instruction in programme {
+ let opcode = codec.encode_thumb(instruction).unwrap();
+
+ opcodes.push(opcode.0);
+ if let Some(opcode) = opcode.1 { opcodes.push(opcode) };
+ }
+
+ assert_eq!(
+ opcodes,
+ [
+ 0b11110000_00000000,
+ 0b11111000_00100000,
+ 0b01000000_00111000,
+ 0b11100000_00000000,
+ ],
+ )
+}