implement LD [I], Vx and LD Vx, [I]

1 files changed, 15 insertions, 0 deletions

diff --git a/src/chip8.rs b/src/chip8.rs
index ea3790b..a48b86a 100644
--- a/src/chip8.rs
+++ b/src/chip8.rs
@@ -181,6 +181,21 @@ impl Chip8 {
                 }
                 self.draw = true;
             }
+            0xF000 => match opcode & 0x00FF {
+                0x0055 => {
+                    eprintln!("LD [I], V{}", x);
+                    for i in 0..=x {
+                        self.memory[self.i as usize + i] = self.v[i];
+                    }
+                }
+                0x0065 => {
+                    eprintln!("LD V{}, [I]", x);
+                    for i in 0..=x {
+                        self.v[i] = self.memory[self.i as usize + i];
+                    }
+                }
+                _ => unknown_opcode(opcode),
+            },
             _ => unknown_opcode(opcode),
         };