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65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* spw3i3.c: STACK PROBE FOR 32-BIT WINDOWS
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*
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* $Id$
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* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
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* Portions copyright (C) 2001 Global Graphics Software.
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*
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* This function reads a location that is depth words beyond the
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* current stack pointer. On Intel platforms, the stack grows
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* downwards, so this means reading from a location with a lesser
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* address.
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*/
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#include "mpm.h"
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#if !defined(MPS_OS_W3) || !defined(MPS_ARCH_I3)
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#error "spw3i3.c is specific to MPS_OS_W3 and MPS_ARCH_I3"
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#endif
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#ifdef MPS_BUILD_PC
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/* "[ISO] Inline assembly code is not portable." */
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#pragma warn(disable: 2007)
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#endif /* MPS_BUILD_PC */
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void StackProbe(Size depth)
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{
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__asm {
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mov eax, depth
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neg eax
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mov eax, [esp+eax*4] /* do the actual probe */
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}
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}
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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