1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/stage2/entry.S Tue Jun 23 23:08:19 2015 +0200
1.3 @@ -0,0 +1,48 @@
1.4 +/*
1.5 + * Interrupt handling support.
1.6 + *
1.7 + * Copyright (C) 2015 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software: you can redistribute it and/or modify
1.10 + * it under the terms of the GNU General Public License as published by
1.11 + * the Free Software Foundation, either version 3 of the License, or
1.12 + * (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
1.21 + */
1.22 +
1.23 +.text
1.24 +.extern real_exception_handler
1.25 +.globl _tlb_entry
1.26 +.globl _exc_entry
1.27 +.globl _irq_entry
1.28 +.globl _end_entries
1.29 +.set noreorder
1.30 +
1.31 +_tlb_entry:
1.32 + lui $k0, %hi(real_exception_handler)
1.33 + ori $k0, $k0, %lo(real_exception_handler)
1.34 + jr $k0
1.35 + nop
1.36 +
1.37 +_exc_entry:
1.38 + lui $k0, %hi(real_exception_handler)
1.39 + ori $k0, $k0, %lo(real_exception_handler)
1.40 + jr $k0
1.41 + nop
1.42 +
1.43 +_irq_entry:
1.44 + lui $k0, %hi(real_exception_handler)
1.45 + ori $k0, $k0, %lo(real_exception_handler)
1.46 + jr $k0
1.47 + nop
1.48 +
1.49 +_end_entries:
1.50 +
1.51 +.set reorder