newlib-cygwin/libgloss/msp430/crt_high_bss.S

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/* 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. */
#ifdef __MSP430X_LARGE__
#include "memmodel.h"
;; This function is responsible for initializing the contents of the
;; .upper.bss section.
START_CRT_FUNC 0200 init_highbss
mov_ #__high_bssstart, R12
mov.w #0, R13
mov_ #__high_bsssize, R14
;; If __high_bsssize is zero then skip the call to memset.
;; This can happen if all of the bss data was placed into .either.bss.
cmp.w #0, R14
jeq 1f
call_ #memset
1:
END_CRT_FUNC init_highbss
#endif /* __MSP430X_LARGE__ */