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2022-02-04sim: Add partial support for IEEE 754-2008Faraz Shahbazker1-1/+25
2022-02-01 Faraz Shahbazker <fshahbazker@wavecomp.com> sim/common/ChangeLog: * sim-fpu.c (sim_fpu_minmax_nan): New. (sim_fpu_max): Add variant behaviour for IEEE 754-2008. (sim_fpu_min): Likewise. (sim_fpu_is_un, sim_fpu_is_or): New. (sim_fpu_un, sim_fpu_or): New. (sim_fpu_is_ieee754_2008, sim_fpu_is_ieee754_1985): New. (sim_fpu_set_mode): New. (sim_fpu_classify): New. * sim-fpu.h (sim_fpu_minmax_nan): New declaration. (sim_fpu_un, sim_fpu_or): New declarations. (sim_fpu_is_un, sim_fpu_is_or): New declarations. (sim_fpu_mode): New enum. [sim_fpu_state](current_mode): New field. (sim_fpu_current_mode): New define. (sim_fpu_is_ieee754_2008): New declaration. (sim_fpu_is_ieee754_1985): New declaration. (sim_fpu_set_mode): New declaration. (sim_fpu_classify): New declaration.
2022-02-04sim: Factor out NaN handling in floating point operationsFaraz Shahbazker1-0/+10
2022-02-01 Faraz Shahbazker <fshahbazker@wavecomp.com> sim/common/ChangeLog: * sim-fpu.c (sim_fpu_op_nan): New. (sim_fpu_add): Factor out NaN operand handling with a call to sim_fpu_op_nan. (sim_fpu_sub, sim_fpu_mul, sim_fpu_div): Likewise. (sim_fpu_rem, sim_fpu_max, sim_fpu_min): Likewise. * sim-fpu.h (sim_fpu_op_nan): New declaration.
2022-02-04sim: Allow toggling of quiet NaN-bit semanticsFaraz Shahbazker1-0/+25
IEEE754-1985 specifies the top bit of the mantissa as an indicator of signalling vs. quiet NaN, but does not define the precise semantics. Most architectures treat this bit as indicating quiet NaN, but legacy (pre-R6) MIPS goes the other way and treats it as signalling NaN. This used to be controlled by a macro that was only defined for MIPS. This patch replaces the macro with a variable to track the current semantics of the NaN bit and allows differentiation between older (pre-R6) and and newer MIPS cores. 2022-02-01 Faraz Shahbazker <fshahbazker@wavecomp.com> sim/common/ChangeLog: * sim-fpu.c (_sim_fpu): New. (pack_fpu, unpack_fpu): Allow reversal of quiet NaN semantics. * sim-fpu.h (sim_fpu_state): New struct. (_sim_fpu): New extern. (sim_fpu_quiet_nan_inverted): New define. sim/mips/ChangeLog: * cp1.h (fcsr_NAN2008_mask, fcsr_NAN2008_shift): New. * mips.igen (check_fpu): Select default quiet NaN mode for legacy MIPS. * sim-main.h (SIM_QUIET_NAN_NEGATED): Remove.
2022-01-06sim: common: migrate to standard uintXX_t typesMike Frysinger1-23/+23
Drop the sim-specific unsignedXX types and move to the standard uintXX_t types that C11 provides.
2022-01-01Automatic Copyright Year update after running gdb/copyright.pyJoel Brobecker1-1/+1
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
2021-01-01Update copyright year range in all GDB filesJoel Brobecker1-1/+1
This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
2020-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files.
2019-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files.
2018-01-02Update copyright year range in all GDB filesJoel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files
2017-12-12sim: cgen: add remainder functions (needed for OR1K lf.rem.[sd])Peter Gavin1-5/+8
* sim/common/ChangeLog: 2017-12-12 Peter Gavin <pgavin@gmail.com> Stafford Horne <shorne@gmail.com> * cgen-accfp.c (remsf, remdf): New function. (cgen_init_accurate_fpu): Add remsf and remdf. * cgen-fpu.h (cgen_fp_ops): Add remsf, remdf, remxf and remtf. * sim-fpu.c (sim_fpu_rem): New function. * sim-fpu.h (sim_fpu_status_invalid_irx): New enum. (sim_fpu_rem): New function. (sim_fpu_print_status): Add case for sim_fpu_status_invalid_irx.
2017-01-01update copyright year range in GDB filesJoel Brobecker1-1/+1
This applies the second part of GDB's End of Year Procedure, which updates the copyright year range in all of GDB's files. gdb/ChangeLog: Update copyright year range in all GDB files.
2016-01-01GDB copyright headers update after running GDB's copyright.py script.Joel Brobecker1-1/+1
gdb/ChangeLog: Update year range in copyright notice of all files.
2015-01-01Update year range in copyright notice of all files owned by the GDB project.Joel Brobecker1-1/+1
gdb/ChangeLog: Update year range in copyright notice of all files.
2014-01-01Update Copyright year range in all files maintained by GDB.Joel Brobecker1-1/+1
2013-01-01Update years in copyright notice for the GDB files.Joel Brobecker1-2/+1
Two modifications: 1. The addition of 2013 to the copyright year range for every file; 2. The use of a single year range, instead of potentially multiple year ranges, as approved by the FSF.
2012-01-04Copyright year update in most files of the GDB Project.Joel Brobecker1-2/+2
gdb/ChangeLog: Copyright year update in most files of the GDB Project.
2011-01-01run copyright.sh for 2011.Joel Brobecker1-1/+1
2010-04-10sim: also constify sim_fpu_print_funcMike Frysinger1-1/+1
2010-01-01Update copyright notices to add year 2010.Joel Brobecker1-1/+1
2009-01-14 Update the copyright notice of some of the files I missedJoel Brobecker1-1/+2
in the previous copyright update.
2008-01-01 Updated copyright notices for most files.Daniel Jacobowitz1-1/+1
2007-08-24 Switch the license of all files explicitly copyright the FSFJoel Brobecker1-5/+4
to GPLv3.
2007-01-09Copyright updates for 2007.Daniel Jacobowitz1-1/+1
2003-06-222003-06-22 Andrew Cagney <cagney@redhat.com>Andrew Cagney1-2/+6
From matthew green <mrg@redhat.com>: * sim-fpu.h: Update copyright. (sim_fpu_fraction, sim_fpu_guard): New prototypes. * sim-fpu.c: Update copyright. (sim_fpu_fraction, sim_fpu_guard): New inline functions.
2003-06-22Oops! Committed to much, reverting :-(Andrew Cagney1-6/+2
2003-06-22Fix changelogAndrew Cagney1-1/+5
2002-02-25Fix PR gdb/287. From wiz at danbala. Then->than and typos.Andrew Cagney1-1/+1
2002-02-102002-02-10 Chris Demetriou <cgd@broadcom.com>Chris Demetriou1-1/+1
* callback.c: Fix some spelling errors. * hw-device.h: Likewise. * hw-tree.c: Likewise. * sim-abort.c: Likewise. * sim-alu.h: Likewise. * sim-core.h: Likewise. * sim-events.c: Likewise. * sim-events.h: Likewise. * sim-fpu.h: Likewise. * sim-profile.h: Likewise. * sim-utils.c: Likewise.
2002-01-202002-01-20 Ben Elliston <bje@redhat.com>Ben Elliston1-1/+1
* sim-fpu.h (SIM_FPU_IS_QNAN): Replace "Quite" with "Quiet" in the comment for this enumerator.
2002-01-142002-01-14 Ben Elliston <bje@redhat.com>Ben Elliston1-2/+2
* sim-fpu.h: Fix comment about sim_fpu_* constants.
2000-12-232000-12-15 Ben Elliston <bje@redhat.com>Ben Elliston1-0/+7
* sim-fpu.h (sim_fpu_printn_fpu): Declare. * sim-fpu.c (print_bits): Add digits parameter. Print only as many trailing digits as specified (-1 to print all digits). (sim_fpu_print_fpu): New wrapper around sim_fpu_printn_fpu. (sim_fpu_printn_fpu): Rename from sim_fpu_print_fpu; update calls to print_bits ().
2000-11-08* Spelling corrections.Ben Elliston1-5/+5
1999-04-16Initial creation of sourceware repositorygdb-4_18-branchpointStan Shebs1-0/+417
1999-04-16Initial creation of sourceware repositoryStan Shebs1-400/+0
1998-04-04Cleanup INLINE support for simulators using common framework.Andrew Cagney1-21/+59
Make IGEN responsible for co-ordinating inlining of generated files. By default, aclocal.m4 disabled all inlining.
1998-02-23 * sim-fpu.h (enum sim_fpu_class): Add sim_fpu_class_denorm.Andrew Cagney1-38/+313
(sim_fpu_fpto, sim_fpu_tofp): Define.
1997-05-15More floating point operations.Andrew Cagney1-7/+26
1997-05-05Add flakey floating-point support to the TI c80 simulator.Andrew Cagney1-0/+68
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