fix: target-source in pop_cnt()

google · Oct 25, 2024 · 1d7e25c · 1d7e25c
1 parent dbbc1d1
commit 1d7e25c
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/crates/interpreter/src/valid.rs b/crates/interpreter/src/valid.rs
@@ -459,9 +459,9 @@ impl SideTable {
     fn pop_cnt(source: SideTableBranch, target: SideTableBranch) -> MResult<u32, Check> {
         let source = source.stack;
         let target = target.stack;
-        let Some(delta) = source.checked_sub(target) else {
+        let Some(delta) = target.checked_sub(source) else {
             #[cfg(feature = "debug")]
-            eprintln!("side-table negative stack delta {source} < {target}");
+            eprintln!("side-table negative stack delta {target} < {source}");
             return Err(unsupported(if_debug!(Unsupported::SideTable)));
         };
         u32::try_from(delta).map_err(|_| {