diff --git a/src/browser/starter.js b/src/browser/starter.js
index 58426348..72eafe68 100644
--- a/src/browser/starter.js
+++ b/src/browser/starter.js
@@ -134,8 +134,6 @@ function V86Starter(options)
             cpu.mmap_write128(addr, value0, value1, value2, value3);
         },
 
-        "arpl": function() { return cpu.arpl.apply(cpu, arguments); },
-
         "lar": function() { return cpu.lar.apply(cpu, arguments); },
         "lsl": function() { return cpu.lsl.apply(cpu, arguments); },
         "verw": function() { return cpu.verw.apply(cpu, arguments); },
diff --git a/src/cpu.js b/src/cpu.js
index df3c7ce0..22d254af 100644
--- a/src/cpu.js
+++ b/src/cpu.js
@@ -2346,22 +2346,6 @@ CPU.prototype.load_ldt = function(selector)
     //dbg_log("ldt at " + h(info.base >>> 0) + "; (" + info.effective_limit + " bytes)", LOG_CPU);
 };
 
-CPU.prototype.arpl = function(seg, r16)
-{
-    this.flags_changed[0] &= ~flag_zero;
-
-    if((seg & 3) < (r16 & 3))
-    {
-        this.flags[0] |= flag_zero;
-        return seg & ~3 | r16 & 3;
-    }
-    else
-    {
-        this.flags[0] &= ~flag_zero;
-        return seg;
-    }
-};
-
 CPU.prototype.lar = function(selector, original)
 {
     if(CPU_LOG_VERBOSE)
diff --git a/src/rust/cpu2/instructions.rs b/src/rust/cpu2/instructions.rs
index a539a38e..3d5cbbca 100644
--- a/src/rust/cpu2/instructions.rs
+++ b/src/rust/cpu2/instructions.rs
@@ -1,8 +1,6 @@
 #![allow(non_snake_case, unused_variables)]
 
 extern "C" {
-    #[no_mangle]
-    fn arpl(seg: i32, r: i32) -> i32;
     #[no_mangle]
     fn hlt_op();
 }
@@ -560,6 +558,20 @@ pub unsafe fn instr_62_mem(addr: i32, r: i32) {
     dbg_log!("Unimplemented BOUND instruction");
     dbg_assert!(false);
 }
+
+pub unsafe fn arpl(seg: i32, r16: i32) -> i32 {
+    *flags_changed &= !FLAG_ZERO;
+
+    if (seg & 3) < (r16 & 3) {
+        *flags |= FLAG_ZERO;
+        seg & !3 | r16 & 3
+    }
+    else {
+        *flags &= !FLAG_ZERO;
+        seg
+    }
+}
+
 #[no_mangle]
 pub unsafe fn instr_63_mem(addr: i32, r: i32) {
     if !*protected_mode || vm86_mode() {