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Diffstat (limited to 'libgloss/mn10300/crt0-eval.S')
-rw-r--r--libgloss/mn10300/crt0-eval.S82
1 files changed, 0 insertions, 82 deletions
diff --git a/libgloss/mn10300/crt0-eval.S b/libgloss/mn10300/crt0-eval.S
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-##==============================================================================
-##
-## crt0-eval.S
-##
-## MN10300 Series Evaluation Board C startup code
-##
-##==============================================================================
-######COPYRIGHTBEGIN####
-##
-## Copyright (c) 1995, 1996, 1997, 1998 Cygnus Solutions
-##
-## The authors hereby grant permission to use, copy, modify, distribute,
-## and license this software and its documentation for any purpose, provided
-## that existing copyright notices are retained in all copies and that this
-## notice is included verbatim in any distributions. No written agreement,
-## license, or royalty fee is required for any of the authorized uses.
-## Modifications to this software may be copyrighted by their authors
-## and need not follow the licensing terms described here, provided that
-## the new terms are clearly indicated on the first page of each file where
-## they apply.
-##
-######COPYRIGHTEND####
-
-##------------------------------------------------------------------------------
-
- .file "crt0-eval.S"
-
-##------------------------------------------------------------------------------
-## Startup code
-
- .equ DRAM_TOP,0x48100000
-
- .text
-
- .globl __start
-__start:
- # Set up stack. Leave 4K at top for use by Cygmon.
-
- mov DRAM_TOP - 0x1000,a0
- sub 8,a0
- mov a0,sp
-
- # Clear BSS
-
- mov __bss_start,a0
- mov _end,a1
-
- cmp a0,a1
- beq 8f
- clr d0
-1:
- movbu d0,(a0)
- inc a0
- cmp a0,a1
- bne 1b
-8:
- # Call constructors
-
- .extern ___main
- call ___main,[],0
-
- # Call main
- clr d0
- clr d1
- mov d0,(4,sp)
-
-9:
- or 0x0800,psw # Enable interrupts
-
- .extern _main
- call _main,[],0
-
- .extern __exit
- call __exit,[],0
-
-# bra 9b # Loop if we return
-
-
-
-##------------------------------------------------------------------------------
-## end of crt0-eval.S
-