From 8f3cf515a9e4cfd2677aa9c424b15550477d922e Mon Sep 17 00:00:00 2001
From: Alex Janka <alex@alexjanka.com>
Date: Wed, 18 Jan 2023 13:58:53 +1100
Subject: [PATCH] fix interrupts

---
 src/main.rs | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 67447af..cf55c7c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,6 +54,7 @@ pub struct Memory {
     switchable_ram: [u8; 8192],
     cpu_ram: [u8; 128],
     oam: [u8; 160],
+    interrupts: u8,
     ime: bool,
     io: [u8; 76],
 }
@@ -69,6 +70,7 @@ impl Memory {
             switchable_ram: [0x0; 8192],
             cpu_ram: [0x0; 128],
             oam: [0x0; 160],
+            interrupts: 0x0,
             ime: false,
             io: [0x0; 76],
         }
@@ -113,7 +115,7 @@ impl Memory {
                 return self.cpu_ram[(address - 0xFF80) as usize];
             }
             0xFFFF => {
-                return if self.ime { 1 } else { 0 };
+                return self.interrupts;
             }
         }
     }
@@ -143,6 +145,9 @@ impl Memory {
                 // println!("empty space write: {:#X} to addr {:#X}", data, address);
             }
             0xFF00..0xFF4C => {
+                print!("writing to addr {:#X}\r", address);
+                stdout().flush().unwrap();
+
                 if address == 0xFF02 && data == 0x81 {
                     print!("{}", self.get(0xFF01) as char);
                     stdout().flush().unwrap();
@@ -155,11 +160,11 @@ impl Memory {
             0xFF80..0xFFFF => {
                 self.cpu_ram[(address - 0xFF80) as usize] = data;
             }
-            0xFFFF => match data {
-                0x0 => self.ime = false,
-                0x1 => self.ime = true,
-                _ => panic!("wrote weird number to ime: {:#X}", data),
-            },
+            0xFFFF => {
+                println!("interrupts set to {:#b}", data);
+                println!("                / {:#X}", data);
+                self.interrupts = data;
+            }
         }
     }
 }
@@ -224,7 +229,7 @@ fn main() {
         },
         None => loop {
             cycle_num += 1;
-            print_cycles(&cycle_num);
+            // print_cycles(&cycle_num);
             cpu.exec_next();
         },
     }