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Diffstat (limited to 'libgloss/msp430/crt_init.S')
-rw-r--r-- | libgloss/msp430/crt_init.S | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libgloss/msp430/crt_init.S b/libgloss/msp430/crt_init.S new file mode 100644 index 000000000..e83ea9845 --- /dev/null +++ b/libgloss/msp430/crt_init.S @@ -0,0 +1,46 @@ +/* Copyright (c) 2012-2015 Red Hat Incorporated. + 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 Red Hat Incorporated may not be used to endorse + or promote products derived from this software without specific + prior written permission. + + This software is provided by the copyright holders and contributors + "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 Red Hat + incorporated 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. */ + +#include "memmodel.h" + +;; This function is responsible for initializing the contents of the +;; .bss section. + +START_CRT_FUNC 0100 init_bss + + mov_ #__bssstart, R12 + clr.w R13 + mov_ #__bsssize, R14 +#ifdef __MSP430X_LARGE__ + clr.w R15 ; We assume that __bsssize is never > 64K +#endif + call_ #memset + +END_CRT_FUNC init_bss |