Initial version

test-roms/SOURCES.md

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+`6502_functional_test.bin` from https://github.com/Klaus2m5/6502_65C02_functional_tests

tests/functional-test.rs

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+extern crate mos6502;
+
+use std::fs::File;
+use std::io::Read;
+
+use mos6502::address::Address;
+use mos6502::cpu::CPU;
+
+const PC_START: u16 = 0x400;
+// const MAX_CYCLES: usize = 100000000;
+
+#[test]
+fn functional_test() {
+    let mut f = File::open("test-roms/6502_functional_test.bin").unwrap();
+    let mut rom = Vec::<u8>::new();
+    f.read_to_end(&mut rom).unwrap();
+    let mut cpu = CPU::new();
+
+    cpu.memory.set_bytes(Address(PC_START), &rom);
+
+    cpu.run();
+
+    /*
+        let mut last_pc = PC_START;
+    
+        loop {
+            cpu.step();
+            // Prevent endless loop
+            if cpu.interconnect.elapsed_cycles() > MAX_CYCLES {
+                assert!(false, "Took too many cycles to complete");
+            }
+    
+            if last_pc == cpu.registers.pc {
+                if cpu.registers.pc == 0x3367 {
+                    // Success!
+                    break;
+                } else {
+                    assert!(false, "Trap detected");
+                }
+            }
+    
+            last_pc = cpu.registers.pc;
+        }
+    */
+}