1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/xre/nsSigHandlers.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,39 @@
1.4 +/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__amd64__)
1.10 +
1.11 +/*
1.12 + * x87 FPU Control Word:
1.13 + *
1.14 + * 0 -> IM Invalid Operation
1.15 + * 1 -> DM Denormalized Operand
1.16 + * 2 -> ZM Zero Divide
1.17 + * 3 -> OM Overflow
1.18 + * 4 -> UM Underflow
1.19 + * 5 -> PM Precision
1.20 + */
1.21 +#define FPU_EXCEPTION_MASK 0x3f
1.22 +
1.23 +/*
1.24 + * x86 FPU Status Word:
1.25 + *
1.26 + * 0..5 -> Exception flags (see x86 FPU Control Word)
1.27 + * 6 -> SF Stack Fault
1.28 + * 7 -> ES Error Summary Status
1.29 + */
1.30 +#define FPU_STATUS_FLAGS 0xff
1.31 +
1.32 +/*
1.33 + * MXCSR Control and Status Register:
1.34 + *
1.35 + * 0..5 -> Exception flags (see x86 FPU Control Word)
1.36 + * 6 -> DAZ Denormals Are Zero
1.37 + * 7..12 -> Exception mask (see x86 FPU Control Word)
1.38 + */
1.39 +#define SSE_STATUS_FLAGS FPU_EXCEPTION_MASK
1.40 +#define SSE_EXCEPTION_MASK (FPU_EXCEPTION_MASK << 7)
1.41 +
1.42 +#endif
