From e8fb3ee67ea1e2b2c8c7ac78222bee35e3ae5572 Mon Sep 17 00:00:00 2001
From: a <a>
Date: Mon, 14 Jul 2025 22:53:39 -0400
Subject: [PATCH] reboot function

---
 asm/reboot.s        | 92 +++++++++++++++++++++++++++++++++++++++++++++
 include/cfg/crash.h |  9 +++++
 2 files changed, 101 insertions(+)
 create mode 100644 asm/reboot.s
 create mode 100644 include/cfg/crash.h

diff --git a/asm/reboot.s b/asm/reboot.s
new file mode 100644
index 00000000..ac7e9fd0
--- /dev/null
+++ b/asm/reboot.s
@@ -0,0 +1,92 @@
+# Reboot code by devwizard64
+# Will reboot the game by reloading IPL3 and jumping to it.
+
+.set noreorder
+# void reboot(int rom, int tv, int reset, int cic)
+.globl reboot
+reboot:
+    li      $9, 0x04000000|0x10000000|0x20000000
+    mtc0    $9, $12
+    li      $8, ((0x04040000)|0xA0000000)
+    lw      $9, 0x10($8)
+1:
+    and     $9, 0x001|0x004
+    beqzl   $9, 1b
+    lw      $9, 0x10($8)
+    li      $9, 0x00002|0x00008
+    sw      $9, 0x10($8)
+    li      $8, ((0x04600000)|0xA0000000)
+    li      $9, 0x01|0x02
+    sw      $9, 0x10($8)
+    li      $8, ((0x04400000)|0xA0000000)
+    li      $9, 0x3FF
+    sw      $9, 0x0C($8)
+    sw      $0, 0x24($8)
+    sw      $0, 0x10($8)
+    li      $8, ((0x04500000)|0xA0000000)
+    sw      $0, 0x00($8)
+    sw      $0, 0x04($8)
+    lui     $10, %hi(((0x04001000)|0xA0000000))
+    lui     $11, %hi(3f)
+    addu    $12, $11, 32
+1:
+    lw      $8, %lo(3f)($11)
+    sw      $8, %lo(((0x04001000)|0xA0000000))($10)
+    addu    $11, $11, 4
+    bne     $11, $12, 1b
+    addu    $10, $10, 4
+    li      $29, ((0x04001FF0)|0xA0000000)
+    move    $19, $4
+    move    $20, $5
+    move    $21, $6
+    and     $22, $7, 0xFF
+    srl     $23, $7, 8
+    beqzl   $19, 1f
+    li      $11, ((0x10000000)|0xA0000000)
+    li      $11, ((0x06000000)|0xA0000000)
+1:
+    li      $8, ((0x04600000)|0xA0000000)
+    sw      $9, 0x14($8)
+    sw      $9, 0x18($8)
+    sw      $0, 0x1C($8)
+    sw      $9, 0x20($8)
+    lw      $9, ($11)
+    sw      $9, 0x14($8)
+    srl     $9, 8
+    sw      $9, 0x18($8)
+    srl     $9, 8
+    sw      $9, 0x1C($8)
+    srl     $9, 4
+    sw      $9, 0x20($8)
+    li      $8, ((0x04100000)|0xA0000000)
+    lw      $9, 0x0C($8)
+    and     $9, 0x001
+    beqz    $9, 2f
+    li      $10, ((0x04000000)|0xA0000000)
+    lw      $9, 0x0C($8)
+1:
+    and     $9, 0x020
+    bnezl   $9, 1b
+    lw      $9, 0x0C($8)
+2:
+    addu    $12, $11, 0xFC0
+1:
+    lw      $8, 0x40($11)
+    sw      $8, 0x40($10)
+    addu    $11, $11, 4
+    bne     $11, $12, 1b
+    addu    $10, $10, 4
+    li      $11, ((0x04000000+0x40)|0xA0000000)
+    lui     $31, 0xA400
+    j       $11
+    ori     $31, 0x1550
+3:
+    lui     $13, 0xBFC0
+1:
+    lw      $8, 0x07FC($13)
+    addiu   $13, $13, 0x07C0
+    andi    $8, $8, 0x0080
+    bnezl   $8, 1b
+    lui     $13, 0xBFC0
+    lw      $8, 0x0024($13)
+    lui     $11, 0xB000
diff --git a/include/cfg/crash.h b/include/cfg/crash.h
new file mode 100644
index 00000000..dd8ffd40
--- /dev/null
+++ b/include/cfg/crash.h
@@ -0,0 +1,9 @@
+#pragma once
+
+/*
+ * Auto reboot on crash.
+ * Normally, the crash screen will allow you to reboot upon button press.
+ * This makes the reboot instant and the crash screen completely invisible.
+ */
+
+// #define CFG_CRASH_REBOOT