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  • kernel/arch/mips32/src/asm.S

    rb60c582 rda52547  
    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 #
     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 */
    2828
    2929#include <arch/asm/regname.h>
    … …  
    5757        nop
    5858
    59 
    6059.global memsetb
    6160memsetb:
    … …  
    6362        nop
    6463
    65 
    6664.global memsetw
    6765memsetw:
    6866        j _memsetw
    6967        nop
    70 
    7168
    7269.global memcpy
    … …  
    7875memcpy_from_uspace:
    7976memcpy_to_uspace:
    80         move $t2, $a0      # save dst
     77        move $t2, $a0  /* save dst */
    8178       
    8279        addiu $v0, $a1, 3
    83         li $v1, -4         # 0xfffffffffffffffc
     80        li $v1, -4  /* 0xfffffffffffffffc */
    8481        and $v0, $v0, $v1
    8582        beq $a1, $v0, 3f
    … …  
    149146        move $v0, $zero
    150147
    151 
    152 
    153148.macro fpu_gp_save reg ctx
    154149        mfc1 $t0, $\reg
    … …  
    164159        cfc1 $t0, $1
    165160        sw $t0, (\reg + 32) * 4(\ctx)
    166 .endm   
     161.endm
    167162
    168163.macro fpu_ct_restore reg ctx
    … …  
    170165        ctc1 $t0, $\reg
    171166.endm
    172 
    173167
    174168.global fpu_context_save
    … …  
    313307        j $ra
    314308        nop
     309
     310.global early_putchar
     311early_putchar:
     312        j $ra
     313        nop
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