forked from Imagelibrary/rtems
ff081aee72
Rename * _Configuration_Interrupt_stack_area_begin in _ISR_Stack_area_begin, * _Configuration_Interrupt_stack_area_end in _ISR_Stack_area_end, and * _Configuration_Interrupt_stack_size in _ISR_Stack_size. Move definitions to <rtems/score/isr.h>. The new names are considerable shorter and in the right namespace. Update #3459.
84 lines
1.5 KiB
Plaintext
84 lines
1.5 KiB
Plaintext
/*
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* Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and
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* Bernd Becker (becker@faw.uni-ulm.de)
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*
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* COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
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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.
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*
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*
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* COPYRIGHT (c) 1998.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include "asm.h"
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BEGIN_CODE
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PUBLIC(start)
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SYM (start):
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! install the stack pointer
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mov.l stack_k,r15
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! zero out bss
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mov.l edata_k,r0
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mov.l end_k,r1
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mov #0,r2
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0:
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mov.l r2,@r0
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add #4,r0
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cmp/ge r0,r1
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bt 0b
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! copy the vector table from rom to ram
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mov.l vects_k,r0 ! vectab
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mov #0,r1 ! address of boot vector table
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mov #0,r2 | number of bytes copied
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mov.w vects_size,r3 ! size of entries in vectab
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1:
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mov.l @r1+,r4
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mov.l r4,@r0
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add #4,r0
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add #1,r2
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cmp/hi r3,r2
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bf 1b
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mov.l vects_k,r0 ! update vbr to point to vectab
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ldc r0,vbr
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! call the mainline
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mov #0,r4 ! argc
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mov.l main_k,r0
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jsr @r0
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mov #0,r5 ! argv
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! call exit
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mov r0,r4
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mov.l exit_k,r0
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jsr @r0
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or r0,r0
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END_CODE
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.align 2
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stack_k:
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.long SYM(_ISR_Stack_area_end)
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edata_k:
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.long SYM(edata)
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end_k:
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.long SYM(end)
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main_k:
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.long SYM(boot_card)
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exit_k:
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.long SYM(exit)
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vects_k:
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.long SYM(vectab)
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vects_size:
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.word 255
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