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- /*
- * (C) Copyright 2007
- * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
- #include <config.h>
- #include <version.h>
- .text
- .align 2
- .global _start
- _start:
- mov.l ._lowlevel_init, r0
- 100: bsrf r0
- nop
- bsr 1f
- nop
- 1: sts pr, r5
- mov.l ._reloc_dst, r4
- add #(_start-1b), r5
- mov.l ._reloc_dst_end, r6
- 2: mov.l @r5+, r1
- mov.l r1, @r4
- add #4, r4
- cmp/hs r6, r4
- bf 2b
-
- mov.l ._bss_start, r4
- mov.l ._bss_end, r5
- mov #0, r1
- 3: mov.l r1, @r4 /* bss clear */
- add #4, r4
- cmp/hs r5, r4
- bf 3b
- mov.l ._gd_init, r13 /* global data */
- mov.l ._stack_init, r15 /* stack */
- mov.l ._sh_generic_init, r0
- jsr @r0
- nop
- loop:
- bra loop
- .align 2
- ._lowlevel_init: .long (lowlevel_init - (100b + 4))
- ._reloc_dst: .long reloc_dst
- ._reloc_dst_end: .long reloc_dst_end
- ._bss_start: .long bss_start
- ._bss_end: .long bss_end
- ._gd_init: .long (_start - CFG_GBL_DATA_SIZE)
- ._stack_init: .long (_start - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN - 16)
- ._sh_generic_init: .long sh_generic_init
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