diff --git a/crates/xenia-cpu/src/interpreter.rs b/crates/xenia-cpu/src/interpreter.rs
index 082e029..31d54f5 100644
--- a/crates/xenia-cpu/src/interpreter.rs
+++ b/crates/xenia-cpu/src/interpreter.rs
@@ -2429,25 +2429,13 @@ fn execute(ctx: &mut PpcContext, mem: &dyn MemoryAccess, instr: &DecodedInstr) -
             ctx.pc += 4;
         }
         PpcOpcode::vrfin | PpcOpcode::vrfin128 => {
-            // PPCBUG-432: ISA round-to-nearest-even, NOT Rust's round-half-away-from-zero.
+            // PPCBUG-432: ISA round-to-nearest-even, NOT Rust's `round()`
+            // (which is round-half-away-from-zero).
             let vb = if matches!(instr.opcode, PpcOpcode::vrfin128) { instr.vb128() } else { instr.rb() };
             let vd = if matches!(instr.opcode, PpcOpcode::vrfin128) { instr.vd128() } else { instr.rd() };
             let b = ctx.vr[vb].as_f32x4();
             let mut r = [0f32; 4];
-            for i in 0..4 {
-                let x = b[i];
-                let t = x.trunc();
-                let frac = (x - t).abs();
-                r[i] = if frac > 0.5 {
-                    t + if x >= 0.0 { 1.0 } else { -1.0 }
-                } else if frac < 0.5 {
-                    t
-                } else {
-                    // Tie — round to even.
-                    let ti = t as i64;
-                    if ti & 1 == 0 { t } else { t + if x >= 0.0 { 1.0 } else { -1.0 } }
-                };
-            }
+            for i in 0..4 { r[i] = b[i].round_ties_even(); }
             ctx.vr[vd] = xenia_types::Vec128::from_f32x4_array(r);
             ctx.pc += 4;
         }