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+ added comment, documenting the purpose of the STACK_POINTER_SYM constant

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git-svn-id: branches/wasm@47252 -
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nickysn 2020-10-29 16:14:03 +00:00
parent f187334763
commit 762fdf593e
1 changed files with 6 additions and 0 deletions
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6
compiler/wasm32/cpubase.pas
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@ -273,6 +273,12 @@ uses
maxfpuregs = 0; maxfpuregs = 0;
FRAME_POINTER_SYM = '$fp'; FRAME_POINTER_SYM = '$fp';
BASE_POINTER_SYM = '$bp'; BASE_POINTER_SYM = '$bp';
{ Global variable, that acts as the stack pointer in linear memory
(also called the "linear stack"). This stack is used for address-taken
local variables. This separate stack is needed, because the WASM
implementation's runtime call stack (which includes return addresses and
function parameters) is not visible in linear memory. }
STACK_POINTER_SYM = '__stack_pointer'; STACK_POINTER_SYM = '__stack_pointer';
{***************************************************************************** {*****************************************************************************