RamRomComputer now reads from ROM and writes to RAM and reads back from RAM

cli/src/bin/decode.rs

@@ -18,6 +18,4 @@ fn main() {
     for (op, bytes) in instructions {
         assert_eq!(Instruction::decode(bytes), Some(op));
     }
-    //  let instruction = Instruction::decode(&[0xea]);
-    //  println!("NOP Decoded -> {:?}", instruction);
 }

cli/src/bin/kim1.rs

@@ -12,7 +12,7 @@ fn main() {
         kim.tick();
         num_ticks += 1;
 
-        if num_ticks == 11 {
+        if num_ticks == MOS6502_RESET_CYCLE_COUNT {
             println!("Got our 11 ticks.  time to hotwire this pc.");
             kim.running = true;
             kim.dump();

cli/src/bin/ram_rom.rs

@@ -1,3 +1,5 @@
+use core::computers::ram_rom::backplane::RamRomComputer;
+use core::periph::backplane::Backplane;
 use std::fs;
 
 fn main() {
@@ -18,4 +20,29 @@ fn main() {
     };
 
 
-}
+    let mut computer = RamRomComputer::new();
+
+    // Read byte from ROM   0x4000
+    println!("-- ");
+    computer.set_read_mode(true);
+    computer.set_address_bus(0x4020);
+    computer.tick();
+    println!("-- ");
+    // Data Bus contains value from ROM
+
+    let read_from_rom = computer.data_bus();
+    // Write byte to RAM    0x0000
+    computer.set_read_mode(false);
+    computer.set_address_bus(0x0001);
+    computer.tick();
+    println!("-- ");
+    // Read byte from RAM
+    computer.set_read_mode(true);
+    computer.set_address_bus(0x0001);
+    computer.tick();
+    println!("-- ");
+    let read_from_ram = computer.data_bus();
+
+    assert_eq!(read_from_rom, read_from_ram);
+    println!("Test passed.  We read the same from ROM as we did from RAM - {} == {}", read_from_rom, read_from_ram);
+}

cli/src/bin/rom_only.rs

@@ -1,6 +1,6 @@
 use std::fs;
 use clap::Parser;
-use core::computers::rom_only::backplane::RomOnlyComputer;
+use core::computers::rom_only::RomOnlyComputer;
 use core::periph::backplane::Backplane;
 
 #[derive(Parser)]