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14dfabb230
fixes #24472
Excluding variables which are initialized in the nimvm branch so that
they won't interfere the other branch
(cherry picked from commit e7f48cdd5c)
36 lines
1.0 KiB
Nim
36 lines
1.0 KiB
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2017 Jeff Ciesielski
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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## This module contains code for generating volatile loads and stores,
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## which are useful in embedded and systems programming.
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template volatileLoad*[T](src: ptr T): T =
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## Generates a volatile load of the value stored in the container `src`.
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## Note that this only effects code generation on `C` like backends.
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when nimvm:
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src[]
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else:
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when defined(js):
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src[]
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else:
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result = default(T)
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{.emit: [result, " = (*(", typeof(src[]), " volatile*)", src, ");"].}
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template volatileStore*[T](dest: ptr T, val: T) =
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## Generates a volatile store into the container `dest` of the value
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## `val`. Note that this only effects code generation on `C` like
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## backends.
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when nimvm:
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dest[] = val
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else:
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when defined(js):
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dest[] = val
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else:
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{.emit: ["*((", typeof(dest[]), " volatile*)(", dest, ")) = ", val, ";"].}
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