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  • kernel/arch/mips32/src/asm.S

    rda52547 rb60c582  
    1 /*
    2  * Copyright (c) 2003 Jakub Jermar
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  *
    9  * - Redistributions of source code must retain the above copyright
    10  *   notice, this list of conditions and the following disclaimer.
    11  * - Redistributions in binary form must reproduce the above copyright
    12  *   notice, this list of conditions and the following disclaimer in the
    13  *   documentation and/or other materials provided with the distribution.
    14  * - The name of the author may not be used to endorse or promote products
    15  *   derived from this software without specific prior written permission.
    16  *
    17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    27  */
     1#
     2# Copyright (c) 2003-2004 Jakub Jermar
     3# All rights reserved.
     4#
     5# Redistribution and use in source and binary forms, with or without
     6# modification, are permitted provided that the following conditions
     7# are met:
     8#
     9# - Redistributions of source code must retain the above copyright
     10#   notice, this list of conditions and the following disclaimer.
     11# - Redistributions in binary form must reproduce the above copyright
     12#   notice, this list of conditions and the following disclaimer in the
     13#   documentation and/or other materials provided with the distribution.
     14# - The name of the author may not be used to endorse or promote products
     15#   derived from this software without specific prior written permission.
     16#
     17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27#
    2828
    2929#include <arch/asm/regname.h>
    … …  
    5757        nop
    5858
     59
    5960.global memsetb
    6061memsetb:
    … …  
    6263        nop
    6364
     65
    6466.global memsetw
    6567memsetw:
    6668        j _memsetw
    6769        nop
     70
    6871
    6972.global memcpy
    … …  
    7578memcpy_from_uspace:
    7679memcpy_to_uspace:
    77         move $t2, $a0  /* save dst */
     80        move $t2, $a0      # save dst
    7881       
    7982        addiu $v0, $a1, 3
    80         li $v1, -4  /* 0xfffffffffffffffc */
     83        li $v1, -4         # 0xfffffffffffffffc
    8184        and $v0, $v0, $v1
    8285        beq $a1, $v0, 3f
    … …  
    146149        move $v0, $zero
    147150
     151
     152
    148153.macro fpu_gp_save reg ctx
    149154        mfc1 $t0, $\reg
    … …  
    159164        cfc1 $t0, $1
    160165        sw $t0, (\reg + 32) * 4(\ctx)
    161 .endm
     166.endm   
    162167
    163168.macro fpu_ct_restore reg ctx
    … …  
    165170        ctc1 $t0, $\reg
    166171.endm
     172
    167173
    168174.global fpu_context_save
    … …  
    307313        j $ra
    308314        nop
    309 
    310 .global early_putchar
    311 early_putchar:
    312         j $ra
    313         nop
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