From f52f670ecae37faed7743e99d625b7ffcca118e2 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Tue, 2 Sep 2025 03:07:52 +0200
Subject: [PATCH] Add slick banner on boot

---
 kern/banner.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 kern/start.c  |  4 ++--
 2 files changed, 50 insertions(+), 2 deletions(-)
 create mode 100644 kern/banner.h

diff --git a/kern/banner.h b/kern/banner.h
new file mode 100644
index 0000000..b6f5d56
--- /dev/null
+++ b/kern/banner.h
@@ -0,0 +1,48 @@
+unsigned char banner[] = {
+  0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31, 0x38, 0x34, 0x6d, 0x20,
+  0x5f, 0x20, 0x20, 0x20, 0x5f, 0x20, 0x20, 0x20, 0x1b, 0x5b, 0x33, 0x38,
+  0x3b, 0x35, 0x3b, 0x31, 0x37, 0x38, 0x6d, 0x20, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x20, 0x20, 0x20, 0x5f, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b,
+  0x32, 0x31, 0x34, 0x6d, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32, 0x30, 0x38,
+  0x6d, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x1b,
+  0x5b, 0x30, 0x6d, 0x0a, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32,
+  0x31, 0x34, 0x6d, 0x7c, 0x20, 0x5c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x5f,
+  0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32, 0x30, 0x38, 0x6d, 0x5f,
+  0x5f, 0x20, 0x5f, 0x20, 0x5f, 0x5f, 0x20, 0x7c, 0x20, 0x1b, 0x5b, 0x33,
+  0x38, 0x3b, 0x35, 0x3b, 0x32, 0x30, 0x39, 0x6d, 0x7c, 0x5f, 0x20, 0x5f,
+  0x20, 0x20, 0x20, 0x5f, 0x20, 0x5f, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35,
+  0x3b, 0x32, 0x30, 0x33, 0x6d, 0x20, 0x5f, 0x5f, 0x20, 0x20, 0x20, 0x5f,
+  0x5f, 0x5f, 0x20, 0x1b, 0x5b, 0x30, 0x6d, 0x0a, 0x1b, 0x5b, 0x33, 0x38,
+  0x3b, 0x35, 0x3b, 0x32, 0x30, 0x39, 0x6d, 0x7c, 0x20, 0x20, 0x5c, 0x7c,
+  0x20, 0x7c, 0x2f, 0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32,
+  0x30, 0x33, 0x6d, 0x5f, 0x20, 0x5c, 0x20, 0x27, 0x5f, 0x20, 0x5c, 0x7c,
+  0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32, 0x30, 0x34, 0x6d,
+  0x5f, 0x5f, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x1b, 0x5b,
+  0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31, 0x39, 0x38, 0x6d, 0x27, 0x5f, 0x20,
+  0x5c, 0x20, 0x2f, 0x20, 0x5f, 0x20, 0x5c, 0x1b, 0x5b, 0x30, 0x6d, 0x0a,
+  0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x32, 0x30, 0x34, 0x6d, 0x7c,
+  0x20, 0x7c, 0x5c, 0x20, 0x20, 0x7c, 0x20, 0x20, 0x1b, 0x5b, 0x33, 0x38,
+  0x3b, 0x35, 0x3b, 0x31, 0x39, 0x38, 0x6d, 0x5f, 0x5f, 0x2f, 0x20, 0x7c,
+  0x5f, 0x29, 0x20, 0x7c, 0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b,
+  0x31, 0x39, 0x39, 0x6d, 0x7c, 0x5f, 0x7c, 0x20, 0x7c, 0x5f, 0x7c, 0x20,
+  0x7c, 0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31, 0x36, 0x33,
+  0x6d, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x20, 0x5f, 0x5f, 0x2f, 0x1b,
+  0x5b, 0x30, 0x6d, 0x0a, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31,
+  0x39, 0x39, 0x6d, 0x7c, 0x5f, 0x7c, 0x20, 0x5c, 0x5f, 0x7c, 0x5c, 0x5f,
+  0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31, 0x36, 0x33, 0x6d, 0x5f,
+  0x5f, 0x7c, 0x20, 0x2e, 0x5f, 0x5f, 0x2f, 0x20, 0x5c, 0x1b, 0x5b, 0x33,
+  0x38, 0x3b, 0x35, 0x3b, 0x31, 0x36, 0x34, 0x6d, 0x5f, 0x5f, 0x7c, 0x5c,
+  0x5f, 0x5f, 0x2c, 0x5f, 0x7c, 0x5f, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35,
+  0x3b, 0x31, 0x32, 0x38, 0x6d, 0x7c, 0x20, 0x7c, 0x5f, 0x7c, 0x5c, 0x5f,
+  0x5f, 0x5f, 0x7c, 0x1b, 0x5b, 0x30, 0x6d, 0x0a, 0x1b, 0x5b, 0x33, 0x38,
+  0x3b, 0x35, 0x3b, 0x31, 0x36, 0x34, 0x6d, 0x20, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x20, 0x20, 0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31,
+  0x32, 0x38, 0x6d, 0x20, 0x20, 0x7c, 0x5f, 0x7c, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x1b, 0x5b, 0x33, 0x38, 0x3b, 0x35, 0x3b, 0x31, 0x32, 0x39, 0x6d,
+  0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x1b, 0x5b,
+  0x33, 0x38, 0x3b, 0x35, 0x3b, 0x39, 0x33, 0x6d, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x1b, 0x5b, 0x30, 0x6d, 0x0a, 0x1b,
+  0x5b, 0x30, 0x6d
+};
+unsigned int banner_len = 531;
diff --git a/kern/start.c b/kern/start.c
index 15a224f..0ac35a6 100644
--- a/kern/start.c
+++ b/kern/start.c
@@ -1,3 +1,4 @@
+#include <banner.h>
 #include <config.h>
 #include <kalloc.h>
 #include <memory.h>
@@ -40,8 +41,7 @@ void start() {
         /* Here we will do a bunch of initialization steps */
         kalloc_init();
         spinlock_init(&sl);
-        kprintf("Hello Neptune!\n");
-
+        for (int i = 0; i < banner_len; i++) uart_putc(banner[i]);
         __sync_synchronize();
         hold = 0;
     } else {