mirror of
https://github.com/CTurt/dsgmDSWiFi.git
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64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
// DS Wifi interface code
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// Copyright (C) 2005-2006 Stephen Stair - sgstair@akkit.org - http://www.akkit.org
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// spinlock.h - code for spinlocking for basic wifi structure memory protection
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/******************************************************************************
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DSWifi Lib and test materials are licenced under the MIT open source licence:
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Copyright (c) 2005-2006 Stephen Stair
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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/*
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__asm (
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".GLOBL SLasm_Acquire, SLasm_Release \n"
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".ARM \n"
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"SLasm_Acquire: \n"
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" ldr r2,[r0] \n"
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" cmp r2,#0 \n"
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" movne r0,#1 \n"
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" bxne lr \n"
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" mov r2,r1 \n"
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" swp r2,r2,[r0] \n"
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" cmp r2,#0 \n"
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" cmpne r2,r1 \n"
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" moveq r0,#0 \n"
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" bxeq lr \n"
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" swp r2,r2,[r0] \n"
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" mov r0,#1 \n"
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" bx lr \n"
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"\n\n"
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"SLasm_Release: \n"
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" ldr r2,[r0] \n"
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" cmp r2,r1 \n"
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" movne r0,#2 \n"
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" bxne lr \n"
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" mov r2,#0 \n"
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" swp r2,r2,[r0] \n"
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" cmp r2,r1 \n"
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" moveq r0,#0 \n"
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" movne r0,#2 \n"
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" bx lr \n"
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);
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*/
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