1 files changed, 42 insertions, 0 deletions
diff --git a/src/stages/bytecode_tokens.rs b/src/stages/bytecode_tokens.rs
new file mode 100644
index 0000000..5020827
--- /dev/null
+++ b/src/stages/bytecode_tokens.rs
@@ -0,0 +1,42 @@
+use crate::*;
+
+pub struct Segment {
+    pub address: usize,
+    /// Source of the address value.
+    pub source: Option<SourceSpan>,
+    pub words: Vec<Tracked<Word>>,
+}
+
+pub fn print_segment(segment: &Segment) {
+    println!("SEGMENT: 0x{:>04x}", segment.address);
+    // Find maximum width of all words in the segment.
+    let width = segment.words.iter().map(|w| w.to_string().chars().count()).max().unwrap_or(0);
+    for word in &segment.words {
+        let string = word.to_string();
+        println!("  {string:>w$}", w=width as usize);
+    }
+
+}
+
+pub enum BytecodeError {
+    // (expected, received)
+    IncorrectWidth(u32, u32)
+}
+
+pub fn report_bytecode_errors(errors: &[Tracked<BytecodeError>], source_code: &str) {
+    for error in errors {
+        report_bytecode_error(error, source_code);
+    }
+}
+
+fn report_bytecode_error(error: &Tracked<BytecodeError>, source_code: &str) {
+    let context = Context { source_code: &source_code, source: &error.source };
+    let message = match &error.value {
+        BytecodeError::IncorrectWidth(expected, received) =>
+            &format!("Word is {received} bits wide, but should be exactly {expected} bits wide"),
+    };
+
+    report_source_issue(LogLevel::Error, &context, message);
+}
+
+