From 8fc35fa1e19208ebeef84db6b6eeca6c92974524 Mon Sep 17 00:00:00 2001
From: Alex Janka <alex@alexjanka.com>
Date: Thu, 2 Feb 2023 11:00:47 +1100
Subject: [PATCH] cleanup

---
 src/processor/instructions/primitives.rs | 18 ------------------
 src/processor/opcodes.rs                 | 10 ----------
 2 files changed, 28 deletions(-)

diff --git a/src/processor/instructions/primitives.rs b/src/processor/instructions/primitives.rs
index 23550ad..d3fbd8c 100644
--- a/src/processor/instructions/primitives.rs
+++ b/src/processor/instructions/primitives.rs
@@ -106,12 +106,6 @@ impl CPU {
             .set_low(self.reg.af.get_low().bitand(!(1 << flag as u8)));
     }
 
-    pub(crate) fn toggle_flag(&mut self, flag: Flags) {
-        self.reg
-            .af
-            .set_low(self.reg.af.get_low().bitxor(1 << flag as u8));
-    }
-
     pub(crate) fn set_or_clear_flag(&mut self, flag: Flags, state: bool) {
         if state {
             self.set_flag(flag)
@@ -170,18 +164,6 @@ impl CPU {
         return result;
     }
 
-    pub(crate) fn sub_u16s(&mut self, first: u16, second: u16) -> u16 {
-        let (result, carry) = first.overflowing_sub(second);
-        self.set_flag(Flags::NSubtract);
-        self.set_or_clear_flag(Flags::Carry, carry);
-        self.set_or_clear_flag(Flags::Zero, result == 0x0);
-        self.set_or_clear_flag(
-            Flags::HalfCarry,
-            (((first & 0xFFF).wrapping_sub(second & 0xFFF)) & 0x1000) == 0x1000,
-        );
-        return result;
-    }
-
     pub(crate) fn dec_raw(&mut self, val: u8) -> u8 {
         let result = val.wrapping_sub(0x1);
         self.set_flag(Flags::NSubtract);
diff --git a/src/processor/opcodes.rs b/src/processor/opcodes.rs
index ce1a5b2..58ea47b 100644
--- a/src/processor/opcodes.rs
+++ b/src/processor/opcodes.rs
@@ -1,18 +1,8 @@
-use crate::verbose_println;
-use std::ops::{BitAnd, BitOr, BitXor};
-
 use super::{as_signed, res, set, swap_nibbles, Flags, Reg8, SplitRegister, CPU};
 
 impl CPU {
     #[allow(dead_code)]
     pub fn run_opcode(&mut self, opcode: u8) {
-        if self.memory.ime_scheduled > 0 {
-            self.memory.ime_scheduled = self.memory.ime_scheduled.saturating_sub(1);
-            if self.memory.ime_scheduled == 0 {
-                self.memory.ime = true;
-            }
-        }
-
         match opcode {
             0x00 => {
                 // noop