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Fix MSVC compile warning with trunc/round, bug394.

This commit is contained in:
Wilson Snyder 2011-09-21 09:08:05 -04:00
parent 71306ceb1d
commit 094d676a8b
4 changed files with 21 additions and 4 deletions
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5
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@ -3,6 +3,11 @@ Revision history for Verilator
The contributors that suggested a given feature are shown in []. [by ...]
indicates the contributor was also the author of the fix; Thanks!
* Verilator 3.82***
**** Fix MSVC compile warning with trunc/round, bug394. [Amir Gonnen]
* Verilator 3.821 2011/09/14
**** Fix PowerPC runtime error, bug288. [Ahmed El-Mahmoudy]

4
include/verilated.h
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@ -383,9 +383,9 @@ static inline QData VL_CVT_Q_D(double lhs) { union { double d; QData q; } u; u.
/// Return double from QData (numeric)
static inline double VL_ITOR_D_I(IData lhs) { return ((double)((vlsint32_t)(lhs))); }
/// Return QData from double (numeric)
static inline IData VL_RTOI_I_D(double lhs) { return ((vlsint32_t)(trunc(lhs))); }
static inline IData VL_RTOI_I_D(double lhs) { return ((vlsint32_t)(VL_TRUNC(lhs))); }
/// Return QData from double (numeric)
static inline IData VL_RTOIROUND_I_D(double lhs) { return ((vlsint32_t)(round(lhs))); }
static inline IData VL_RTOIROUND_I_D(double lhs) { return ((vlsint32_t)(VL_ROUND(lhs))); }
// Sign extend such that if MSB set, we get ffff_ffff, else 0s
// (Requires clean input)

12
include/verilatedos.h
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@ -221,6 +221,18 @@ typedef unsigned long long vluint64_t; ///< 64-bit unsigned type
#define VL_BITBIT_I(bit) ((bit)&VL_SIZEBITS_I) ///< Bit number for a bit in a long
#define VL_BITBIT_Q(bit) ((bit)&VL_SIZEBITS_Q) ///< Bit number for a bit in a quad
//=========================================================================
// Floating point
// #defines, to avoid requiring math.h on all compile runs
#ifdef _MSC_VER
# define VL_TRUNC(n) (((n)<0) ? ceil((n)) : floor((n)))
# define VL_ROUND(n) (((n)<0) ? ceil((n)-0.5) : floor((n)+0.5))
#else
# define VL_TRUNC(n) trunc(n)
# define VL_ROUND(n) round(n)
#endif
//=========================================================================
#endif /*guard*/

4
src/V3Number.cpp
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@ -1475,12 +1475,12 @@ V3Number& V3Number::opIToRD (const V3Number& lhs) {
return setDouble(lhs.toSInt());
}
V3Number& V3Number::opRToIS (const V3Number& lhs) {
double v = trunc(lhs.toDouble());
double v = VL_TRUNC(lhs.toDouble());
vlsint32_t i = (vlsint32_t)v; // C converts from double to vlsint32
return setLongS(i);
}
V3Number& V3Number::opRToIRoundS (const V3Number& lhs) {
double v = round(lhs.toDouble());
double v = VL_ROUND(lhs.toDouble());
vlsint32_t i = (vlsint32_t)v; // C converts from double to vlsint32
return setLongS(i);
}