From 35d9cd092db819e24df40f09de71a74d7d1749eb Mon Sep 17 00:00:00 2001
From: sawyer bristol <sawyerbristol@gmail.com>
Date: Wed, 12 Nov 2025 14:11:13 -0700
Subject: [PATCH] overclock

---
 Cargo.lock              |  6 +++---
 kernel/Cargo.toml       |  1 +
 kernel/src/main.rs      | 12 ++++++++++--
 user-apps/gboy/build.rs |  8 +++-----
 4 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 71af89c..941d6b6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -137,7 +137,7 @@ version = "0.71.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f58bf3d7db68cfbac37cfc485a8d711e87e064c3d0fe0435b92f7a407f9d6b3"
 dependencies = [
- "bitflags 2.9.4",
+ "bitflags 2.10.0",
  "cexpr",
  "clang-sys",
  "itertools 0.10.5",
@@ -148,7 +148,7 @@ dependencies = [
  "regex",
  "rustc-hash",
  "shlex",
- "syn 2.0.104",
+ "syn 2.0.110",
 ]
 
 [[package]]
@@ -2004,7 +2004,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff24dfcda44452b9816fff4cd4227e1bb73ff5a2f1bc1105aa92fb8565ce44d2"
 dependencies = [
  "proc-macro2",
- "syn 2.0.104",
+ "syn 2.0.110",
 ]
 
 [[package]]
diff --git a/kernel/Cargo.toml b/kernel/Cargo.toml
index abc7926..a7229b6 100644
--- a/kernel/Cargo.toml
+++ b/kernel/Cargo.toml
@@ -17,6 +17,7 @@ pimoroni2w = ["rp235x", "psram"]
 rp235x = ["embassy-rp/rp235xb"]
 trouble = ["dep:bt-hci", "dep:cyw43", "dep:cyw43-pio", "dep:trouble-host"]
 psram = ["dep:embedded-alloc"]
+overclock = []
 fps = []
 defmt = [
   "dep:defmt",
diff --git a/kernel/src/main.rs b/kernel/src/main.rs
index 9d864fc..5b1fa00 100644
--- a/kernel/src/main.rs
+++ b/kernel/src/main.rs
@@ -47,6 +47,8 @@ use embassy_executor::{Executor, Spawner};
 use embassy_futures::{join::join, select::select};
 use embassy_rp::{
     Peri,
+    clocks::ClockConfig,
+    config::Config,
     gpio::{Input, Level, Output, Pull},
     i2c::{self, I2c},
     multicore::{Stack, spawn_core1},
@@ -119,7 +121,13 @@ static UI_CHANGE: Signal<CriticalSectionRawMutex, ()> = Signal::new();
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
-    let p = embassy_rp::init(Default::default());
+    let p = if cfg!(feature = "overclock") {
+        let clocks = ClockConfig::system_freq(192_000_000).unwrap();
+        let config = Config::new(clocks);
+        embassy_rp::init(config)
+    } else {
+        embassy_rp::init(Default::default())
+    };
 
     spawn_core1(
         p.CORE1,
@@ -255,7 +263,7 @@ async fn setup_mcu(mcu: Mcu) {
 
 async fn setup_display(display: Display, spawner: Spawner) {
     let mut config = spi::Config::default();
-    config.frequency = 64_000_000;
+    config.frequency = 192_000_000;
     let spi = Spi::new(
         display.spi,
         display.clk,
diff --git a/user-apps/gboy/build.rs b/user-apps/gboy/build.rs
index 1425720..a8bd29d 100644
--- a/user-apps/gboy/build.rs
+++ b/user-apps/gboy/build.rs
@@ -48,13 +48,11 @@ fn bindgen() {
         .file("peanut_gb_stub.c")
         .include("Peanut-GB")
         // optimization flags
-        .flag("-O3") // max optimization
-        .flag("-ffast-math") // faster floating point, if any
-        .flag("-funroll-loops") // unroll small loops
-        // CPU/architecture flags (example for ARM Cortex-M33)
+        .flag("-Ofast")
+        .flag("-fdata-sections")
+        .flag("-ffunction-sections")
         .flag("-mcpu=cortex-m33")
         .flag("-mthumb")
-        // optional: strip debug info
         .flag("-g0")
         .compile("peanut_gb");