1 files changed, 68 insertions, 0 deletions
diff --git a/private/crt32/misc/cmiscdat.c b/private/crt32/misc/cmiscdat.c
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+++ b/private/crt32/misc/cmiscdat.c
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+/***
+*cmiscdat.c - miscellaneous C run-time data
+*
+*	Copyright (c) 1989-1990, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	Includes floating point conversion table (for C float output),
+*	a data structure used by signal/exec to tell if a SIGINT handler
+*	has been installed, and the public variables _asizeC and _asizeD
+*	for conveying memory-model information to the memory-model-independent
+*	GRAPHICS.LIB.
+*
+*	When floating point i/o conversions are done, but no floating-point
+*	variables or expressions are used in the C program, we use the
+*	_cfltcvt_tab[] to map these cases to the _fptrap entry point,
+*	which prints "floating point not loaded" and dies.
+*
+*	This table is initialized to six copies of _fptrap by default.
+*	If floating-point is linked in (_fltused), these table entries
+*	are reset (see input.c, output.c, fltused.asm, and fltuseda.asm).
+*
+*Revision History:
+*	06-29-89  PHG	module created, based on asm version
+*	04-06-90  GJF	Added #include <cruntime.h>. Also, fixed the copyright
+*			and cleaned up the formatting a bit.
+*	07-31-90  SBM	Updated comments slightly
+*	08-29-90  SBM	Added #include <internal.h> and <fltintrn.h>,
+*			removed _fptrap() prototype
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <internal.h>
+#include <fltintrn.h>
+
+/*
+	... table of (model-dependent) code pointers ...
+
+	Six entries, all point to _fptrap by default,
+	but are changed to point to the appropriate
+	routine if the _fltused initializer (_cfltcvt_init)
+	is linked in.
+
+	this table is used or modified in the following
+	source files:
+
+		\clib\stdio\input.c
+		\clib\stdio\output.c
+		\math\c\fltused.asm
+		\math\c\fltuseda.asm
+
+	if the _fltused modules are linked in, then the
+	_cfltcvt_init initializer sets the 6 entries of
+	_cfltcvt_tab to:
+
+		_cfltcvt
+		_cropzeros
+		_fassign
+		_forcdecpt
+		_positive
+		_cldcvt
+*/
+
+void (*_cfltcvt_tab[6])(void) = {
+	_fptrap, _fptrap, _fptrap, _fptrap, _fptrap, _fptrap
+};
+
+void (*_sigintoff)() = 0;	/* SIGINT default signal routine */