| 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 | #
|
|---|
| 28 |
|
|---|
| 29 | .text
|
|---|
| 30 |
|
|---|
| 31 | .macro cp0_read reg
|
|---|
| 32 | mfc0 $2,\reg
|
|---|
| 33 | j $31
|
|---|
| 34 | nop
|
|---|
| 35 | .endm
|
|---|
| 36 |
|
|---|
| 37 | .macro cp0_write reg
|
|---|
| 38 | mtc0 $4,\reg
|
|---|
| 39 | j $31
|
|---|
| 40 | nop
|
|---|
| 41 | .endm
|
|---|
| 42 |
|
|---|
| 43 | .set noat
|
|---|
| 44 | .set noreorder
|
|---|
| 45 | .set nomacro
|
|---|
| 46 |
|
|---|
| 47 | .global cp0_index_read
|
|---|
| 48 | .global cp0_index_write
|
|---|
| 49 | .global cp0_random_read
|
|---|
| 50 | .global cp0_entry_lo0_read
|
|---|
| 51 | .global cp0_entry_lo0_write
|
|---|
| 52 | .global cp0_entry_lo1_read
|
|---|
| 53 | .global cp0_entry_lo1_write
|
|---|
| 54 | .global cp0_context_read
|
|---|
| 55 | .global cp0_context_write
|
|---|
| 56 | .global cp0_pagemask_read
|
|---|
| 57 | .global cp0_pagemask_write
|
|---|
| 58 | .global cp0_wired_read
|
|---|
| 59 | .global cp0_wired_write
|
|---|
| 60 | .global cp0_badvaddr_read
|
|---|
| 61 | .global cp0_count_read
|
|---|
| 62 | .global cp0_count_write
|
|---|
| 63 | .global cp0_hi_read
|
|---|
| 64 | .global cp0_hi_write
|
|---|
| 65 | .global cp0_compare_read
|
|---|
| 66 | .global cp0_compare_write
|
|---|
| 67 | .global cp0_status_read
|
|---|
| 68 | .global cp0_status_write
|
|---|
| 69 | .global cp0_cause_read
|
|---|
| 70 | .global cp0_cause_write
|
|---|
| 71 | .global cp0_epc_read
|
|---|
| 72 | .global cp0_epc_write
|
|---|
| 73 | .global cp0_prid_read
|
|---|
| 74 |
|
|---|
| 75 | cp0_index_read: cp0_read $0
|
|---|
| 76 | cp0_index_write: cp0_write $0
|
|---|
| 77 |
|
|---|
| 78 | cp0_random_read: cp0_read $1
|
|---|
| 79 |
|
|---|
| 80 | cp0_entry_lo0_read: cp0_read $2
|
|---|
| 81 | cp0_entry_lo0_write: cp0_write $2
|
|---|
| 82 |
|
|---|
| 83 | cp0_entry_lo1_read: cp0_read $3
|
|---|
| 84 | cp0_entry_lo1_write: cp0_write $3
|
|---|
| 85 |
|
|---|
| 86 | cp0_context_read: cp0_read $4
|
|---|
| 87 | cp0_context_write: cp0_write $4
|
|---|
| 88 |
|
|---|
| 89 | cp0_pagemask_read: cp0_read $5
|
|---|
| 90 | cp0_pagemask_write: cp0_write $5
|
|---|
| 91 |
|
|---|
| 92 | cp0_wired_read: cp0_read $6
|
|---|
| 93 | cp0_wired_write: cp0_write $6
|
|---|
| 94 |
|
|---|
| 95 | cp0_badvaddr_read: cp0_read $8
|
|---|
| 96 |
|
|---|
| 97 | cp0_count_read: cp0_read $9
|
|---|
| 98 | cp0_count_write: cp0_write $9
|
|---|
| 99 |
|
|---|
| 100 | cp0_entry_hi_read: cp0_read $10
|
|---|
| 101 | cp0_entry_hi_write: cp0_write $10
|
|---|
| 102 |
|
|---|
| 103 | cp0_compare_read: cp0_read $11
|
|---|
| 104 | cp0_compare_write: cp0_write $11
|
|---|
| 105 |
|
|---|
| 106 | cp0_status_read: cp0_read $12
|
|---|
| 107 | cp0_status_write: cp0_write $12
|
|---|
| 108 |
|
|---|
| 109 | cp0_cause_read: cp0_read $13
|
|---|
| 110 | cp0_cause_write: cp0_write $13
|
|---|
| 111 |
|
|---|
| 112 | cp0_epc_read: cp0_read $14
|
|---|
| 113 | cp0_epc_write: cp0_write $14
|
|---|
| 114 |
|
|---|
| 115 | cp0_prid_read: cp0_read $15
|
|---|
| 116 |
|
|---|
| 117 |
|
|---|
| 118 | .global tlbp
|
|---|
| 119 | tlbp:
|
|---|
| 120 | tlbp
|
|---|
| 121 | j $31
|
|---|
| 122 | nop
|
|---|
| 123 |
|
|---|
| 124 | .global tlbr
|
|---|
| 125 | tlbr:
|
|---|
| 126 | tlbr
|
|---|
| 127 | j $31
|
|---|
| 128 | nop
|
|---|
| 129 |
|
|---|
| 130 | .global tlbwi
|
|---|
| 131 | tlbwi:
|
|---|
| 132 | tlbwi
|
|---|
| 133 | j $31
|
|---|
| 134 | nop
|
|---|
| 135 |
|
|---|
| 136 | .global tlbwr
|
|---|
| 137 | tlbwr:
|
|---|
| 138 | tlbwr
|
|---|
| 139 | j $31
|
|---|
| 140 | nop
|
|---|
| 141 |
|
|---|
| 142 | .global cpu_halt
|
|---|
| 143 | cpu_halt:
|
|---|
| 144 | j cpu_halt
|
|---|
| 145 | nop
|
|---|
| 146 |
|
|---|
| 147 |
|
|---|
| 148 | .global memsetb
|
|---|
| 149 | memsetb:
|
|---|
| 150 | j _memsetb
|
|---|
| 151 | nop
|
|---|
| 152 |
|
|---|
| 153 | .global memcpy
|
|---|
| 154 | memcpy:
|
|---|
| 155 | j _memcpy
|
|---|
| 156 | nop
|
|---|
| 157 |
|
|---|
| 158 | # THIS IS USERSPACE CODE
|
|---|
| 159 | .global utext
|
|---|
| 160 | utext:
|
|---|
| 161 | j $31
|
|---|
| 162 | nop
|
|---|
| 163 | utext_end:
|
|---|
| 164 |
|
|---|
| 165 | .data
|
|---|
| 166 | .global utext_size
|
|---|
| 167 | utext_size:
|
|---|
| 168 | .long utext_end-utext
|
|---|
| 169 |
|
|---|
| 170 |
|
|---|
