3 files changed, 112 insertions, 0 deletions
diff --git a/src/arm32/instruction/display.rs b/src/arm32/instruction/display.rs
new file mode 100644
index 0000000..d3e359a
--- /dev/null
+++ b/src/arm32/instruction/display.rs
@@ -0,0 +1,40 @@
+// Copyright 2021-2024 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;
+
+use core::fmt::Display;
+
+impl Display for Instruction {
+ fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+ use Instruction::*;
+
+ match *self {
+ Branch { condition, immediate } => {
+ write!(f, "B{condition} <#{immediate}>")
+ },
+
+ BranchLink { condition, immediate } => {
+ write!(f, "BL{condition} <#{immediate}>")
+ },
+ }
+ }
+}
diff --git a/src/arm32/instruction/mod.rs b/src/arm32/instruction/mod.rs
new file mode 100644
index 0000000..d10aa6d
--- /dev/null
+++ b/src/arm32/instruction/mod.rs
@@ -0,0 +1,33 @@
+// Copyright 2021-2024 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/>.
+
+#[cfg(test)]
+mod test;
+
+mod display;
+
+use crate::arm32::Condition;
+
+pub enum Instruction {
+ Branch { condition: Condition, immediate: i32 },
+
+ BranchLink { condition: Condition, immediate: i32 },
+}
diff --git a/src/arm32/instruction/test.rs b/src/arm32/instruction/test.rs
new file mode 100644
index 0000000..5c8d523
--- /dev/null
+++ b/src/arm32/instruction/test.rs
@@ -0,0 +1,39 @@
+// Copyright 2021-2024 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::{Condition, Instruction};
+
+use alloc::format;
+
+#[test]
+fn test_arm32_instruction() {
+ let assert_display = |instruction: Instruction, display: &str| {
+ assert_eq!(format!("{instruction}"), display);
+ };
+
+ assert_display(
+ Instruction::BranchLink {
+ condition: Condition::HigherOrSame,
+ immediate: 0xF,
+ },
+ "BLHS <#15>",
+ );
+}