From cb01f8798c83949843f1222b7d838956eb21ecea Mon Sep 17 00:00:00 2001
From: Franco Colmenarez <info@francoacg.com>
Date: Mon, 7 Feb 2022 18:11:38 -0500
Subject: [PATCH] ROM loading

---
 Cargo.lock      | 816 +++++++++++++++++++++++++++++++++++++++++++++++-
 Cargo.toml      |   3 +-
 src/emulator.rs |  16 +-
 src/gui.rs      |  12 +-
 src/mmu.rs      |  15 +-
 5 files changed, 847 insertions(+), 15 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 2e5c000..d29a41f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,12 +44,139 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "android_glue"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "000444226fcff248f2bc4c7625be32c63caccfecc2723a2b9f78a7487a49c407"
 
+[[package]]
+name = "ashpd"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7915e26e0786f91768d23de32afafa4ee5e2ea76be21c0ecd8e14441543c1655"
+dependencies = [
+ "enumflags2",
+ "futures",
+ "rand",
+ "serde",
+ "serde_repr",
+ "zbus",
+]
+
+[[package]]
+name = "async-broadcast"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90622698a1218e0b2fb846c97b5f19a0831f6baddee73d9454156365ccfa473b"
+dependencies = [
+ "easy-parallel",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-channel"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2114d64672151c0c5eaa5e131ec84a74f06e1e559830dabba01ca30605d66319"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "871f9bb5e0a22eeb7e8cf16641feb87c9dc67032ccf8ff49e772eb9941d3a965"
+dependencies = [
+ "async-task",
+ "concurrent-queue",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+ "slab",
+]
+
+[[package]]
+name = "async-io"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a811e6a479f2439f0c04038796b5cfb3d2ad56c230e0f2d3f7b04d68cfee607b"
+dependencies = [
+ "concurrent-queue",
+ "futures-lite",
+ "libc",
+ "log",
+ "once_cell",
+ "parking",
+ "polling",
+ "slab",
+ "socket2",
+ "waker-fn",
+ "winapi",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6a8ea61bf9947a1007c5cada31e647dbc77b103c679858150003ba697ea798b"
+dependencies = [
+ "event-listener",
+]
+
+[[package]]
+name = "async-recursion"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7d78656ba01f1b93024b7c3a0467f1608e4be67d725749fdcd7d2c7678fd7a2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "async-task"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d306121baf53310a3fd342d88dc0824f6bbeace68347593658525565abee8"
+
+[[package]]
+name = "async-trait"
+version = "0.1.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "061a7acccaa286c011ddc30970520b98fa40e00c9d644633fb26b5fc63a265e3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "atk-sys"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58aeb089fb698e06db8089971c7ee317ab9644bade33383f63631437b03aafb6"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "atomic_refcell"
 version = "0.1.8"
@@ -95,6 +222,28 @@ version = "3.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
 
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "cache-padded"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1db59621ec70f09c5e9b597b220c7a2b43611f4710dc03ceb8748637775692c"
+
+[[package]]
+name = "cairo-sys-rs"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c55d429bef56ac9172d25fecb85dc8068307d17acd74b377866b7a1ef25d3c8"
+dependencies = [
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "calloop"
 version = "0.9.3"
@@ -102,7 +251,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf2eec61efe56aa1e813f5126959296933cf0700030e4314786c48779a66ab82"
 dependencies = [
  "log",
- "nix",
+ "nix 0.22.3",
 ]
 
 [[package]]
@@ -111,6 +260,15 @@ version = "1.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
 
+[[package]]
+name = "cfg-expr"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3431df59f28accaf4cb4eed4a9acc66bea3f3c3753aa6cdc2f024174ef232af7"
+dependencies = [
+ "smallvec",
+]
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -173,6 +331,15 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "concurrent-queue"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30ed07550be01594c6026cff2a1d7fe9c8f683caa798e12b68694ac9e88286a3"
+dependencies = [
+ "cache-padded",
+]
+
 [[package]]
 name = "copypasta"
 version = "0.7.1"
@@ -310,6 +477,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "derivative"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "dispatch"
 version = "0.2.0"
@@ -331,6 +509,12 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
 
+[[package]]
+name = "easy-parallel"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6907e25393cdcc1f4f3f513d9aac1e840eb1cc341a0fccb01171f7d14d10b946"
+
 [[package]]
 name = "eframe"
 version = "0.16.0"
@@ -400,6 +584,27 @@ version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55673de2eb96660dde25ba7b2d36a7054beead1a2bec74dcfd5eb05a1e1ba76d"
 
+[[package]]
+name = "enumflags2"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a25c90b056b3f84111cf183cbeddef0d3a0bbe9a674f057e1a1533c315f24def"
+dependencies = [
+ "enumflags2_derive",
+ "serde",
+]
+
+[[package]]
+name = "enumflags2_derive"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "144ec79496cbab6f84fa125dc67be9264aef22eb8a28da8454d9c33f15108da4"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "epaint"
 version = "0.16.0"
@@ -422,6 +627,21 @@ dependencies = [
  "egui",
 ]
 
+[[package]]
+name = "event-listener"
+version = "2.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77f3309417938f28bf8228fcff79a4a37103981e3e186d2ccd19c74b38f4eb71"
+
+[[package]]
+name = "fastrand"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3fcf0cee53519c866c09b5de1f6c56ff9d647101f81c1964fa632e148896cdf"
+dependencies = [
+ "instant",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -443,6 +663,140 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
+[[package]]
+name = "futures"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+
+[[package]]
+name = "futures-lite"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
+
+[[package]]
+name = "futures-macro"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
+
+[[package]]
+name = "futures-task"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
+
+[[package]]
+name = "futures-util"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
+ "futures-task",
+ "memchr",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+]
+
+[[package]]
+name = "gdk-pixbuf-sys"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413424d9818621fa3cfc8a3a915cdb89a7c3c507d56761b4ec83a9a98e587171"
+dependencies = [
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "gdk-sys"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32e7a08c1e8f06f4177fb7e51a777b8c1689f743a7bc11ea91d44d2226073a88"
+dependencies = [
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "pkg-config",
+ "system-deps",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.4"
@@ -460,6 +814,19 @@ version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
 
+[[package]]
+name = "gio-sys"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f0bc4cfc9ebcdd05cc5057bc51b99c32f8f9bf246274f6a556ffd27279f8fe3"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+ "winapi",
+]
+
 [[package]]
 name = "gl_generator"
 version = "0.14.0"
@@ -471,6 +838,16 @@ dependencies = [
  "xml-rs",
 ]
 
+[[package]]
+name = "glib-sys"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa1d4e1a63d8574541e5b92931e4e669ddc87ffa85d58e84e631dba13ad2e10c"
+dependencies = [
+ "libc",
+ "system-deps",
+]
+
 [[package]]
 name = "glium"
 version = "0.31.0"
@@ -559,6 +936,47 @@ dependencies = [
  "gl_generator",
 ]
 
+[[package]]
+name = "gobject-sys"
+version = "0.15.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df6859463843c20cf3837e3a9069b6ab2051aeeadf4c899d33344f4aea83189a"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "gtk-sys"
+version = "0.15.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5bc2f0587cba247f60246a0ca11fe25fb733eabc3de12d1965fc07efab87c84"
+dependencies = [
+ "atk-sys",
+ "cairo-sys-rs",
+ "gdk-pixbuf-sys",
+ "gdk-sys",
+ "gio-sys",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "pango-sys",
+ "system-deps",
+]
+
+[[package]]
+name = "heck"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -774,6 +1192,19 @@ dependencies = [
  "memoffset",
 ]
 
+[[package]]
+name = "nix"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "nohash-hasher"
 version = "0.2.0"
@@ -865,6 +1296,16 @@ version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
+[[package]]
+name = "ordered-stream"
+version = "0.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44630c059eacfd6e08bdaa51b1db2ce33119caa4ddc1235e923109aa5f25ccb1"
+dependencies = [
+ "futures-core",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "osmesa-sys"
 version = "0.1.2"
@@ -883,6 +1324,24 @@ dependencies = [
  "ttf-parser",
 ]
 
+[[package]]
+name = "pango-sys"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7022c2fb88cd2d9d55e1a708a8c53a3ae8678234c4a54bf623400aeb7f31fac2"
+dependencies = [
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "parking"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
+
 [[package]]
 name = "parking_lot"
 version = "0.11.2"
@@ -914,12 +1373,49 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
+[[package]]
+name = "polling"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "685404d509889fade3e86fe3a5803bca2ec09b0c0778d5ada6ec8bf7a8de5259"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "log",
+ "wepoll-ffi",
+ "winapi",
+]
+
+[[package]]
+name = "pollster"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5da3b0203fd7ee5720aa0b5e790b591aa5d3f41c3ed2c34a3a393382198af2f7"
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
+
 [[package]]
 name = "proc-macro-crate"
 version = "1.1.0"
@@ -957,6 +1453,46 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e7573632e6454cf6b99d7aac4ccca54be06da05aca2ef7423d22d27d4d4bcd8"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d51e9f596de227fda2ea6c84607f5558e196eeaf43c986b724ba4fb8fdf497e7"
+dependencies = [
+ "rand_core",
+]
+
 [[package]]
 name = "raw-window-handle"
 version = "0.4.2"
@@ -975,11 +1511,55 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "rfd"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2aaf1d71ccd44689f7c2c72da1117fd8db71f72a76fe9b5c5dbb17ab903007e0"
+dependencies = [
+ "ashpd",
+ "block",
+ "dispatch",
+ "glib-sys",
+ "gobject-sys",
+ "gtk-sys",
+ "js-sys",
+ "lazy_static",
+ "log",
+ "objc",
+ "objc-foundation",
+ "objc_id",
+ "pollster",
+ "raw-window-handle",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "windows",
+]
+
 [[package]]
 name = "rultra64"
 version = "0.1.0"
 dependencies = [
  "eframe",
+ "rfd",
 ]
 
 [[package]]
@@ -1005,6 +1585,46 @@ name = "serde"
 version = "1.0.136"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce31e24b01e1e524df96f1c2fdd054405f8d7376249a5110886fb4b658484789"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.136"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08597e7152fcd306f41838ed3e37be9eaeed2b61c42e2117266a554fab4662f9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_repr"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98d0516900518c29efa217c298fa1f4e6c6ffc85ae29fd7f4ee48f176e1a9ed5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "sha1"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1da05c97445caa12d05e848c4a4fcbbea29e748ac28f7e80e9b010392063770"
+dependencies = [
+ "sha1_smol",
+]
+
+[[package]]
+name = "sha1_smol"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
 
 [[package]]
 name = "shared_library"
@@ -1016,6 +1636,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "slab"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9def91fd1e018fe007022791f865d0ccc9b3a0d5001e01aabb8b40e46000afb5"
+
 [[package]]
 name = "smallvec"
 version = "1.8.0"
@@ -1034,7 +1660,7 @@ dependencies = [
  "lazy_static",
  "log",
  "memmap2",
- "nix",
+ "nix 0.22.3",
  "pkg-config",
  "wayland-client",
  "wayland-cursor",
@@ -1051,6 +1677,22 @@ dependencies = [
  "wayland-client",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -1068,6 +1710,19 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "system-deps"
+version = "6.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad3a97fdef3daf935d929b3e97e5a6a680cd4622e40c2941ca0875d6566416f8"
+dependencies = [
+ "cfg-expr",
+ "heck",
+ "pkg-config",
+ "toml",
+ "version-compare",
+]
+
 [[package]]
 name = "takeable-option"
 version = "0.5.0"
@@ -1115,12 +1770,24 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "version-compare"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe88247b92c1df6b6de80ddc290f3976dbdf2f5f5d3fd049a9fb598c6dd5ca73"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
 [[package]]
 name = "wasi"
 version = "0.10.2+wasi-snapshot-preview1"
@@ -1202,7 +1869,7 @@ dependencies = [
  "bitflags",
  "downcast-rs",
  "libc",
- "nix",
+ "nix 0.22.3",
  "scoped-tls",
  "wayland-commons",
  "wayland-scanner",
@@ -1215,7 +1882,7 @@ version = "0.29.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94f6e5e340d7c13490eca867898c4cec5af56c27a5ffe5c80c6fc4708e22d33e"
 dependencies = [
- "nix",
+ "nix 0.22.3",
  "once_cell",
  "smallvec",
  "wayland-sys",
@@ -1227,7 +1894,7 @@ version = "0.29.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c52758f13d5e7861fc83d942d3d99bf270c83269575e52ac29e5b73cb956a6bd"
 dependencies = [
- "nix",
+ "nix 0.22.3",
  "wayland-client",
  "xcursor",
 ]
@@ -1297,6 +1964,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "wepoll-ffi"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "widestring"
 version = "0.4.3"
@@ -1325,6 +2001,49 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b749ebd2304aa012c5992d11a25d07b406bdbe5f79d371cb7a918ce501a19eb0"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29277a4435d642f775f63c7d1faeb927adba532886ce0287bd985bffb16b6bca"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1145e1989da93956c68d1864f32fb97c8f561a8f89a5125f6a2b7ea75524e4b8"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4a09e3a0d4753b73019db171c1339cd4362c8c44baf1bcea336235e955954a6"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ca64fcb0220d58db4c119e050e7af03c69e6f4f415ef69ec1773d9aab422d5a"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08cabc9f0066848fef4bc6a1c1668e6efce38b661d2aeec75d18d8617eebb5f1"
+
 [[package]]
 name = "winit"
 version = "0.26.1"
@@ -1403,3 +2122,90 @@ name = "xml-rs"
 version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
+
+[[package]]
+name = "zbus"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7bb86f3d4592e26a48b2719742aec94f8ae6238ebde20d98183ee185d1275e9a"
+dependencies = [
+ "async-broadcast",
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "async-recursion",
+ "async-task",
+ "async-trait",
+ "byteorder",
+ "derivative",
+ "enumflags2",
+ "event-listener",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "hex",
+ "lazy_static",
+ "nix 0.23.1",
+ "once_cell",
+ "ordered-stream",
+ "rand",
+ "serde",
+ "serde_repr",
+ "sha1",
+ "static_assertions",
+ "winapi",
+ "zbus_macros",
+ "zbus_names",
+ "zvariant",
+]
+
+[[package]]
+name = "zbus_macros"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36823cc10fddc3c6b19f048903262dacaf8274170e9a255784bdd8b4570a8040"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn",
+]
+
+[[package]]
+name = "zbus_names"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45dfcdcf87b71dad505d30cc27b1b7b88a64b6d1c435648f48f9dbc1fdc4b7e1"
+dependencies = [
+ "serde",
+ "static_assertions",
+ "zvariant",
+]
+
+[[package]]
+name = "zvariant"
+version = "3.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49ea5dc38b2058fae6a5b79009388143dadce1e91c26a67f984a0fc0381c8033"
+dependencies = [
+ "byteorder",
+ "enumflags2",
+ "libc",
+ "serde",
+ "static_assertions",
+ "zvariant_derive",
+]
+
+[[package]]
+name = "zvariant_derive"
+version = "3.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c2cecc5a61c2a053f7f653a24cd15b3b0195d7f7ddb5042c837fb32e161fb7a"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
index d8852b4..0a0cfa1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,4 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-eframe = "0.16.0"
\ No newline at end of file
+eframe = "0.16.0"
+rfd = "0.7"
\ No newline at end of file
diff --git a/src/emulator.rs b/src/emulator.rs
index 5403240..b37cb17 100644
--- a/src/emulator.rs
+++ b/src/emulator.rs
@@ -17,10 +17,20 @@ impl Emulator {
     pub fn new_hle() -> Self {
         Self {
             cpu: CPU::new_hle(),
-            mmu: MMU::new_hle(),
+            mmu: MMU::new(),
         }
     }
 
+    pub fn reload(&mut self) {
+        self.cpu = CPU::new();
+        self.mmu = MMU::new();
+    }
+
+    pub fn reload_hle(&mut self) {
+        self.cpu = CPU::new_hle();
+        self.mmu = MMU::new();
+    }
+
     pub fn tick(&mut self) {
         self.cpu.fetch_and_exec_opcode(&mut self.mmu);
     }
@@ -28,4 +38,8 @@ impl Emulator {
     pub fn cpu(&self) -> &CPU {
         &self.cpu
     }
+
+    pub fn mut_mmu(&mut self) -> &mut MMU {
+        &mut self.mmu
+    }
 }
\ No newline at end of file
diff --git a/src/gui.rs b/src/gui.rs
index 1590077..59e8cf5 100644
--- a/src/gui.rs
+++ b/src/gui.rs
@@ -24,7 +24,7 @@ pub struct EmulatorApp {
 impl Default for EmulatorApp {
     fn default() -> Self {
         Self {
-            core: Emulator::new(),
+            core: Emulator::new_hle(),
             selected_register: Register::CPU,
         }
     }
@@ -68,6 +68,16 @@ impl epi::App for EmulatorApp {
             egui::menu::bar(ui, |ui| {
                 ui.menu_button("File", |ui| {
                     if ui.button("Load ROM").clicked() {
+                        if let Some(path) = rfd::FileDialog::new().pick_file() {
+                            let picked_path = path.display().to_string();
+                            if let Ok(rom) = crate::rom::ROM::new_from_filename(&picked_path) {
+                                let mut emulator_core = emulator_core.borrow_mut();
+                                emulator_core.reload_hle();
+                                emulator_core.mut_mmu().set_rom(rom);
+                                emulator_core.mut_mmu().hle_ipl();
+                                println!("ROM loaded!");
+                            }
+                        }
                     }
                     if ui.button("Quit").clicked() {
                         frame.quit();
diff --git a/src/mmu.rs b/src/mmu.rs
index 020d360..49950dc 100644
--- a/src/mmu.rs
+++ b/src/mmu.rs
@@ -52,20 +52,21 @@ impl MMU {
         }
     }
 
-    pub fn new_hle() -> Self {
-        let mut mmu = Self::new();
+    pub fn hle_ipl(&mut self) {
         // Skip IPL1 and IPL2
         for i in 0..0x1000 {
-            let byte = mmu.read_virtual(0xB0000000 + i, 1);
-            mmu.write_virtual(0xA4000000 + i, &byte);
+            let byte = self.read_virtual(0xB0000000 + i, 1);
+            self.write_virtual(0xA4000000 + i, &byte);
         }
         // Skip IPL3
         for i in 0..0x100000 {
-            let byte = mmu.read_physical_byte(0x10001000 + i);
-            mmu.write_physical_byte(0x00001000 + i, byte);
+            let byte = self.read_physical_byte(0x10001000 + i);
+            self.write_physical_byte(0x00001000 + i, byte);
         }
+    }
 
-        mmu
+    pub fn set_rom(&mut self, rom: ROM) {
+        self.rom = rom;
     }
 
     pub fn convert(address: i64) -> i64 {