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authorPeter Maydell2014-06-16 19:26:21 +0200
committerPeter Maydell2014-06-16 19:26:21 +0200
commitaf44da87e926ff64260b95f4350d338c4fc113ca (patch)
tree303a18d80e73641bb6e23218ac7b7df0666bcc6b /include/libdecnumber/dpd/decimal32.h
parentrules.mak: remove $(sort) from extract-libs (diff)
parentspapr_pci: Advertise MSI quota (diff)
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging
Patch queue for ppc - 2014-06-16 This pull request brings a lot of fun things. Among others we have - e500: u-boot firmware support - sPAPR: magic page enablement - sPAPR: add "compat" CPU option to support older guests - sPAPR: refactorings in preparation for VFIO - POWER8 live migration - mac99: expose bus frequency - little endian core dump, gdb and disas support - new ppc64le-linux-user target - DFP emulation - bug fixes # gpg: Signature made Mon 16 Jun 2014 12:28:32 BST using RSA key ID 03FEDC60 # gpg: Can't check signature: public key not found * remotes/agraf/tags/signed-ppc-for-upstream: (156 commits) spapr_pci: Advertise MSI quota PPC: KVM: Make pv hcall endian agnostic powerpc: use float64 for frsqrte spapr: Add kvm-type property spapr: Create SPAPRMachine struct linux-user: Tell guest about big host page sizes spapr_hcall: Add address-translation-mode-on-interrupt resource in H_SET_MODE spapr_hcall: Split h_set_mode() target-ppc: Enable DABRX SPR and limit it to <=POWER7 target-ppc: Enable PPR and VRSAVE SPRs migration target-ppc: Add POWER8's Event Based Branch (EBB) control SPRs KVM: target-ppc: Enable TM state migration target-ppc: Add POWER8's TM SPRs target-ppc: Add POWER8's MMCR2/MMCRS SPRs target-ppc: Enable FSCR facility check for TAR target-ppc: Add POWER8's FSCR SPR target-ppc: Add POWER8's TIR SPR target-ppc: Refactor class init for POWER7/8 target-ppc: Switch POWER7/8 classes to use correct PMU SPRs target-ppc: Make use of gen_spr_power5p_lpar() for POWER7/8 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/libdecnumber/dpd/decimal32.h')
-rw-r--r--include/libdecnumber/dpd/decimal32.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/include/libdecnumber/dpd/decimal32.h b/include/libdecnumber/dpd/decimal32.h
new file mode 100644
index 0000000000..de313e0024
--- /dev/null
+++ b/include/libdecnumber/dpd/decimal32.h
@@ -0,0 +1,98 @@
+/* Decimal 32-bit format module header for the decNumber C Library.
+ Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+ Contributed by IBM Corporation. Author Mike Cowlishaw.
+
+ This file is part of GCC.
+
+ GCC is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2, or (at your option) any later
+ version.
+
+ In addition to the permissions in the GNU General Public License,
+ the Free Software Foundation gives you unlimited permission to link
+ the compiled version of this file into combinations with other
+ programs, and to distribute those combinations without any
+ restriction coming from the use of this file. (The General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into a combine executable.)
+
+ GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+/* ------------------------------------------------------------------ */
+/* Decimal 32-bit format module header */
+/* ------------------------------------------------------------------ */
+
+#if !defined(DECIMAL32)
+ #define DECIMAL32
+ #define DEC32NAME "decimal32" /* Short name */
+ #define DEC32FULLNAME "Decimal 32-bit Number" /* Verbose name */
+ #define DEC32AUTHOR "Mike Cowlishaw" /* Who to blame */
+
+ /* parameters for decimal32s */
+ #define DECIMAL32_Bytes 4 /* length */
+ #define DECIMAL32_Pmax 7 /* maximum precision (digits) */
+ #define DECIMAL32_Emax 96 /* maximum adjusted exponent */
+ #define DECIMAL32_Emin -95 /* minimum adjusted exponent */
+ #define DECIMAL32_Bias 101 /* bias for the exponent */
+ #define DECIMAL32_String 15 /* maximum string length, +1 */
+ #define DECIMAL32_EconL 6 /* exp. continuation length */
+ /* highest biased exponent (Elimit-1) */
+ #define DECIMAL32_Ehigh (DECIMAL32_Emax+DECIMAL32_Bias-DECIMAL32_Pmax+1)
+
+ /* check enough digits, if pre-defined */
+ #if defined(DECNUMDIGITS)
+ #if (DECNUMDIGITS<DECIMAL32_Pmax)
+ #error decimal32.h needs pre-defined DECNUMDIGITS>=7 for safe use
+ #endif
+ #endif
+
+ #ifndef DECNUMDIGITS
+ #define DECNUMDIGITS DECIMAL32_Pmax /* size if not already defined*/
+ #endif
+ #ifndef DECNUMBER
+ #include "libdecnumber/decNumber.h"
+ #endif
+
+ /* Decimal 32-bit type, accessible by bytes */
+ typedef struct {
+ uint8_t bytes[DECIMAL32_Bytes]; /* decimal32: 1, 5, 6, 20 bits*/
+ } decimal32;
+
+ /* special values [top byte excluding sign bit; last two bits are */
+ /* don't-care for Infinity on input, last bit don't-care for NaN] */
+ #if !defined(DECIMAL_NaN)
+ #define DECIMAL_NaN 0x7c /* 0 11111 00 NaN */
+ #define DECIMAL_sNaN 0x7e /* 0 11111 10 sNaN */
+ #define DECIMAL_Inf 0x78 /* 0 11110 00 Infinity */
+ #endif
+
+ /* ---------------------------------------------------------------- */
+ /* Routines */
+ /* ---------------------------------------------------------------- */
+
+
+ /* String conversions */
+ decimal32 * decimal32FromString(decimal32 *, const char *, decContext *);
+ char * decimal32ToString(const decimal32 *, char *);
+ char * decimal32ToEngString(const decimal32 *, char *);
+
+ /* decNumber conversions */
+ decimal32 * decimal32FromNumber(decimal32 *, const decNumber *,
+ decContext *);
+ decNumber * decimal32ToNumber(const decimal32 *, decNumber *);
+
+ /* Format-dependent utilities */
+ uint32_t decimal32IsCanonical(const decimal32 *);
+ decimal32 * decimal32Canonical(decimal32 *, const decimal32 *);
+
+#endif