AlphaCPU_vaxfloat.cpp File Reference

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Detailed Description

Contains VAX floating point code for the Alpha CPU.

Id

AlphaCPU_vaxfloat.cpp,v 1.11 2008/03/14 15:30:50 iamcamiel Exp

X-1.9 Camiel Vanderhoeven 14-MAR-2008 1. More meaningful exceptions replace throwing (int) 1. 2. U64 macro replaces X64 macro.

X-1.8 Camiel Vanderhoeven 05-FEB-2008 Bug description added.

X-1.7 Camiel Vanderhoeven 28-JAN-2008 Better floating-point exception handling.

X-1.6 Camiel Vanderhoeven 27-JAN-2008 Comments.

X-1.5 Camiel Vanderhoeven 27-JAN-2008 Minor floating-point improvements.

X-1.4 Camiel Vanderhoeven 26-JAN-2008 Bugfix in vax_stf.

X-1.3 Camiel Vanderhoeven 26-JAN-2008 Made IDB compile again.

X-1.2 Camiel Vanderhoeven 22-JAN-2008 Minor cleanup.

X-1.1 Camiel Vanderhoeven 21-JAN-2008 File created. Contains code based upon the SIMH Alpha pre- implementation, which is Copyright (c) 2003, Robert M Supnik.

Bug:

The new floating point code has some unidentified problems. The OpenVMS installation routine fails with this new code. For now, the old floating point code has been restored, and the new floating-point code is used only when HAVE_NEW_FP has been defined. The new code should be fixed, so we can take advantage of floating point exceptions.

Definition in file AlphaCPU_vaxfloat.cpp.

#include "StdAfx.h"
#include "AlphaCPU.h"
#include "cpu_debug.h"

Go to the source code of this file.

Defines
#define	IPMAX   U64(0x7FFFFFFFFFFFFFFF)
#define	IMMAX   U64(0x8000000000000000)
#define	UF_FRND   U64(0x0000008000000000)
#define	UF_DRND   U64(0x0000000000000080)
#define	UF_GRND   U64(0x0000000000000400)

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Define Documentation

#define IMMAX   U64(0x8000000000000000)

Definition at line 72 of file AlphaCPU_vaxfloat.cpp.

#define IPMAX   U64(0x7FFFFFFFFFFFFFFF)

Definition at line 71 of file AlphaCPU_vaxfloat.cpp.

#define UF_DRND   U64(0x0000000000000080)

Definition at line 76 of file AlphaCPU_vaxfloat.cpp.

#define UF_FRND   U64(0x0000008000000000)

Definition at line 75 of file AlphaCPU_vaxfloat.cpp.

Referenced by CAlphaCPU::vax_rpack().

#define UF_GRND   U64(0x0000000000000400)

Definition at line 77 of file AlphaCPU_vaxfloat.cpp.

Referenced by CAlphaCPU::vax_rpack().