| 0,0 → 1,157 |
|---|
| # |
| # Copyright (C) 2001-2004 Jakub Jermar |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| .text |
| |
| .macro cp0_read reg |
| mfc0 $2,\reg |
| j $31 |
| nop |
| .endm |
| |
| .macro cp0_write reg |
| mtc0 $4,\reg |
| j $31 |
| nop |
| .endm |
| |
| .set noat |
| .set noreorder |
| .set nomacro |
| |
| .global cp0_index_read |
| .global cp0_index_write |
| .global cp0_random_read |
| .global cp0_entry_lo0_read |
| .global cp0_entry_lo0_write |
| .global cp0_entry_lo1_read |
| .global cp0_entry_lo1_write |
| .global cp0_context_read |
| .global cp0_context_write |
| .global cp0_pagemask_read |
| .global cp0_pagemask_write |
| .global cp0_wired_read |
| .global cp0_wired_write |
| .global cp0_badvaddr_read |
| .global cp0_count_read |
| .global cp0_count_write |
| .global cp0_hi_read |
| .global cp0_hi_write |
| .global cp0_compare_read |
| .global cp0_compare_write |
| .global cp0_status_read |
| .global cp0_status_write |
| .global cp0_cause_read |
| .global cp0_epc_read |
| .global cp0_epc_write |
| .global cp0_prid_read |
| |
| cp0_index_read: cp0_read $0 |
| cp0_index_write: cp0_write $0 |
| |
| cp0_random_read: cp0_read $1 |
| |
| cp0_entry_lo0_read: cp0_read $2 |
| cp0_entry_lo0_write: cp0_write $2 |
| |
| cp0_entry_lo1_read: cp0_read $3 |
| cp0_entry_lo1_write: cp0_write $3 |
| |
| cp0_context_read: cp0_read $4 |
| cp0_context_write: cp0_write $4 |
| |
| cp0_pagemask_read: cp0_read $5 |
| cp0_pagemask_write: cp0_write $5 |
| |
| cp0_wired_read: cp0_read $6 |
| cp0_wired_write: cp0_write $6 |
| |
| cp0_badvaddr_read: cp0_read $8 |
| |
| cp0_count_read: cp0_read $9 |
| cp0_count_write: cp0_write $9 |
| |
| cp0_entry_hi_read: cp0_read $10 |
| cp0_entry_hi_write: cp0_write $10 |
| |
| cp0_compare_read: cp0_read $11 |
| cp0_compare_write: cp0_write $11 |
| |
| cp0_status_read: cp0_read $12 |
| cp0_status_write: cp0_write $12 |
| |
| cp0_cause_read: cp0_read $13 |
| |
| cp0_epc_read: cp0_read $14 |
| cp0_epc_write: cp0_write $14 |
| |
| cp0_prid_read: cp0_read $15 |
| |
| |
| .global tlbp |
| tlbp: |
| tlbp |
| j $31 |
| nop |
| |
| .global tlbr |
| tlbr: |
| tlbr |
| j $31 |
| nop |
| |
| .global tlbwi |
| tlbwi: |
| tlbwi |
| j $31 |
| nop |
| |
| .global tlbwr |
| tlbwr: |
| tlbwr |
| j $31 |
| nop |
| |
| .global cpu_halt |
| cpu_halt: |
| j cpu_halt |
| nop |
| |
| |
| # THIS IS USERSPACE CODE |
| .global utext |
| utext: |
| j $31 |
| nop |
| utext_end: |
| |
| .data |
| .global utext_size |
| utext_size: |
| .long utext_end-utext |
| |