new example

examples/euclidean_algo.rs

@@ -0,0 +1,47 @@
+extern crate mos6502;
+use mos6502::address::Address;
+use mos6502::cpu;
+
+fn main() {
+    let mut input = String::new();
+    std::io::stdin().read_line(&mut input).unwrap();
+    let nums = input
+        .trim()
+        .split(' ')
+        .map(|s| s.parse::<u8>().unwrap())
+        .collect::<Vec<u8>>();
+    let (first, second) = (nums[0], nums[1]);
+
+    let zero_page_data = [first, second];
+    let program = [
+    // (F)irst | (S)econd
+    // .algo
+        0xa5, 0x00,       // Load from F to A
+    // .algo_
+        0x38,             // Set carry flag
+        0xe5, 0x01,       // Substract S from number in A (from F)
+        0xf0, 0x07,       // Jump to .end if diff is zero
+        0x30, 0x08,       // Jump to .swap if diff is negative
+        0x85, 0x00,       // Load A to F
+        0x4c, 0x12, 0x00, // Jump to .algo_
+    // .end
+        0xa5, 0x00,       // Load from S to A
+        0xff, 
+    // .swap
+        0xa6, 0x00,       // load F to X
+        0xa4, 0x01,       // load S to Y
+        0x86, 0x01,       // Store X to F
+        0x84, 0x00,       // Store Y to S
+        0x4c, 0x10, 0x00, // Jump to .algo
+    ];
+
+    let mut cpu = cpu::CPU::new();
+
+    cpu.memory.set_bytes(Address(0x00), &zero_page_data);
+    cpu.memory.set_bytes(Address(0x10), &program);
+    cpu.registers.program_counter = Address(0x10);
+
+    cpu.run();
+
+    println!("GCD is {:?}", cpu.registers.accumulator);
+}

examples/mos6502.rs

@@ -1,45 +1,11 @@
-// Copyright (C) 2014 The 6502-rs Developers
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1. Redistributions of source code must retain the above copyright
-//    notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-//    notice, this list of conditions and the following disclaimer in the
-//    documentation and/or other materials provided with the distribution.
-// 3. Neither the names of the copyright holders nor the names of any
-//    contributors may be used to endorse or promote products derived from this
-//    software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-
 extern crate mos6502;
 
-#[cfg(not(test))]
 use mos6502::cpu;
-
-#[cfg(not(test))]
 use mos6502::address::Address;
 
-#[cfg(not(test))]
 fn main() {
     let mut cpu = cpu::CPU::new();
 
-    // "Load" a program
-
-
     let zero_page_data = [
         // ZeroPage data start
         0x00,
@@ -98,7 +64,7 @@ fn main() {
         0xFF, // Something invalid -- the end!
     ];
 
-    let data = [
+    let data: [u8; 25] = [
         0x00,
         0x09, // ADC Absolute target
         0x00,
@@ -126,6 +92,7 @@ fn main() {
         0x06, // ADC IndirectIndexedY target
     ];
 
+    // "Load" a program
     cpu.memory.set_bytes(Address(0x0000), &zero_page_data);
     cpu.memory.set_bytes(Address(0x4000), &program);
     cpu.memory.set_bytes(Address(0x8000), &data);
@@ -133,6 +100,4 @@ fn main() {
     cpu.registers.program_counter = Address(0x4000);
 
     cpu.run();
-
-    println!("{:?}", cpu);
 }