ams-mtc: add ams-mtc

Source/Atmosphere-MTC-Unlock/exosphere/warmboot/source/warmboot_start.s

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+.section    .text._ZN3ams8warmboot5StartEv, "ax", %progbits
+.align      3
+.global     _ZN3ams8warmboot5StartEv
+_ZN3ams8warmboot5StartEv:
+    /* Set CPSR_cf and CPSR_cf. */
+    msr cpsr_f, #0xC0
+    msr cpsr_cf, #0xD3
+
+    /* Set the stack pointer. */
+    ldr sp, =__stack_top__
+
+    /* Set our link register to the exception handler. */
+    ldr lr, =_ZN3ams8warmboot16ExceptionHandlerEv
+
+    /* Invoke main. */
+    ldr r0, =_metadata
+    b _ZN3ams8warmboot4MainEPKNS0_8MetadataE
+
+    /* Infinite loop. */
+    1: b 1b