From 8c25e202e86c72cb5c0118977db142fe01943a01 Mon Sep 17 00:00:00 2001
From: Franco Colmenarez <info@francoacg.com>
Date: Wed, 27 Dec 2023 22:19:05 -0500
Subject: [PATCH] cop

---
 snes-core/src/cpu/instructionstemp/cop.rs | 38 +++++++++++++++++++++++
 snes-core/src/cpu/instructionstemp/mod.rs |  1 +
 2 files changed, 39 insertions(+)
 create mode 100644 snes-core/src/cpu/instructionstemp/cop.rs

diff --git a/snes-core/src/cpu/instructionstemp/cop.rs b/snes-core/src/cpu/instructionstemp/cop.rs
new file mode 100644
index 0000000..fe126e8
--- /dev/null
+++ b/snes-core/src/cpu/instructionstemp/cop.rs
@@ -0,0 +1,38 @@
+use crate::cpu::{bus::Bus, registers::Registers};
+
+use super::{CPUInstruction, Decode};
+use super::decoder_common;
+use super::push_common;
+use crate::cpu::cycles;
+
+static INSTR_NAME: &'static str = "COP";
+
+pub struct COP {}
+
+impl CPUInstruction for COP {
+    fn execute(&self, registers: &mut Registers, bus: &mut Bus) {
+        push_common::do_push(registers, bus, &[registers.pbr]);
+        push_common::do_push(registers, bus, &[(registers.pc >> 8) as u8, registers.pc as u8]);
+        push_common::do_push(registers, bus, &[registers.p]);
+        registers.set_decimal_mode_flag(false);
+        registers.set_irq_disable_flag(true);
+        let (bytes, cycles) = cycles::increment_cycles_brk(registers.emulation_mode);
+        registers.increment_pc(bytes); registers.cycles += cycles;
+    }
+}
+
+impl Decode for COP {
+    fn mnemonic(&self, _registers: &Registers, _bus: &Bus, opcode: u8) -> String {
+        decoder_common::mnemonic_single_byte_instr(opcode, INSTR_NAME)
+    }
+}
+
+
+#[cfg(test)]
+mod cpu_instructions_tests {
+    use super::*;
+
+    #[test]
+    fn test() {
+    }
+}
diff --git a/snes-core/src/cpu/instructionstemp/mod.rs b/snes-core/src/cpu/instructionstemp/mod.rs
index b16acc6..471a4e4 100644
--- a/snes-core/src/cpu/instructionstemp/mod.rs
+++ b/snes-core/src/cpu/instructionstemp/mod.rs
@@ -22,6 +22,7 @@ pub mod cld;
 pub mod cli;
 pub mod clv;
 pub mod cmp;
+pub mod cop;
 pub mod bit_common;
 pub mod decoder_common;
 pub mod branch_common;