146 lines
3.0 KiB
ArmAsm
146 lines
3.0 KiB
ArmAsm
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;@-------------------------------------------------------------------------
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;@-------------------------------------------------------------------------
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.globl _start
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_start:
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b skip
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.space 0x1000-0x4,0
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skip:
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mrc p15,0,r0,c0,c0,5 ;@ MPIDR
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mov r1,#0xFF
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ands r1,r1,r0
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bne not_zero
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mov sp,#0x8000
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bl notmain
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hang: b hang
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not_zero:
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cmp r1,#1
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beq core_one
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cmp r1,#2
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beq core_two
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cmp r1,#3
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beq core_three
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b .
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core_one:
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ldr r1,=0x1000
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str r0,[r1]
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mov sp,#0x6000
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mov r1,#0
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str r1,[sp]
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core_one_loop:
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ldr r0,[sp]
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cmp r0,#0
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beq core_one_loop
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bl hopper
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b hang
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core_two:
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ldr r1,=0x1004
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str r0,[r1]
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mov sp,#0x4000
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mov r1,#0
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str r1,[sp]
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core_two_loop:
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ldr r0,[sp]
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cmp r0,#0
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beq core_two_loop
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bl hopper
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b hang
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core_three:
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ldr r1,=0x1008
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str r0,[r1]
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mov sp,#0x2000
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mov r1,#0
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str r1,[sp]
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core_three_loop:
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ldr r0,[sp]
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cmp r0,#0
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beq core_three_loop
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bl hopper
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b hang
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hopper:
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bx r0
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.globl PUT32
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PUT32:
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str r1,[r0]
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bx lr
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.globl PUT16
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PUT16:
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strh r1,[r0]
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bx lr
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.globl PUT8
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PUT8:
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strb r1,[r0]
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bx lr
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.globl GET32
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GET32:
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ldr r0,[r0]
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bx lr
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.globl GETPC
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GETPC:
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mov r0,lr
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bx lr
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.globl BRANCHTO
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BRANCHTO:
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mov r12,#0
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mcr p15, 0, r12, c7, c10, 1
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dsb
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mov r12, #0
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mcr p15, 0, r12, c7, c5, 0
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mov r12, #0
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mcr p15, 0, r12, c7, c5, 6
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dsb
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isb
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bx r0
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.globl dummy
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dummy:
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bx lr
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.globl GETCPSR
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GETCPSR:
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mrs r0,cpsr
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bx lr
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.globl GETSCTLR
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GETSCTLR:
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mrc p15,0,r0,c1,c0,0
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bx lr
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.globl GETMPIDR
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GETMPIDR:
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mrc p15,0,r0,c0,c0,5 ;@ MPIDR
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bx lr
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;@-------------------------------------------------------------------------
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;@-------------------------------------------------------------------------
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;@-------------------------------------------------------------------------
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;@
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;@ Copyright (c) 2012 David Welch dwelch@dwelch.com
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;@
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;@ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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;@
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;@ The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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;@
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;@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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;@
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;@-------------------------------------------------------------------------
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