1 files changed, 74 insertions, 0 deletions
diff --git a/src/test/arm32/thumb_encode.rs b/src/test/arm32/thumb_encode.rs
new file mode 100644
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+++ b/src/test/arm32/thumb_encode.rs
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+// 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,
+ ],
+ )
+}