109 lines
2.0 KiB
ArmAsm
109 lines
2.0 KiB
ArmAsm
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@*****************************************************************************
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@*
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@* This program is free software ; you can redistribute it and/or modify
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@* it under the terms of the GNU General Public License as published by
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@* the Free Software Foundation; either version 2 of the License, or
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@* (at your option) any later version.
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@*
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@* This program is distributed in the hope that it will be useful,
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@* but WITHOUT ANY WARRANTY; without even the implied warranty of
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@* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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@* GNU General Public License for more details.
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@*
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@* You should have received a copy of the GNU General Public License
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@* along with this program; if not, write to the Free Software
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@* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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@*
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@* $Id: arm.s 271 2005-08-09 08:31:35Z picard $
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@*
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@* The Core Pocket Media Player
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@* Copyright (c) 2004-2005 Gabor Kovacs
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@*
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@*****************************************************************************
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.global GetCpuId
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.global GetCPAR
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.global CPUSpeedClk
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.global CPUSpeedClkEnd
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.global FlushCache
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.global setjmp
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.global longjmp
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setjmp:
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mov r12,#0
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stmia r0,{r4-r12,sp,lr}
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mov r0,#0
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mov pc,lr
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longjmp:
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ldmia r0!,{r4-r12,sp,lr}
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movs r0,r1
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moveq r0,#1
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mov pc,lr
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GetCpuId:
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mrs r0,cpsr
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and r0,r0,#15
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cmp r0,#15
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bne UserMode
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mrc p15,0,r0,c0,c0,0
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nop
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nop
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mrc p15,0,r2,c0,c0,1
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nop
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nop
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str r0,[r1,#0]
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str r2,[r1,#4]
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UserMode:
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mov pc,lr
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GetCPAR:
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mov r0,#0
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mrs r1,cpsr
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and r1,r1,#15
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cmp r1,#15
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bne UserMode2
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mrc p15,0,r0,c15,c1,0
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nop
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nop
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UserMode2:
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mov pc,lr
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.macro speed10
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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add r3,r3,#1
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.endm
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CPUSpeedClk:
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mov r2,r0
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mov r1,#3+100
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mul r0,r2,r1
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mov r1,#0
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CPULoop:
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speed10
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speed10
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speed10
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speed10
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speed10
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speed10
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speed10
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speed10
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speed10
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speed10
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subs r2,r2,#1
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bgt CPULoop
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mov pc,lr
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