Crash on a loongarch64 CPU (Loongson 3A5000M).

[KatyushaScarlet]

Describe the bug

• Run from the shell

  LOG: Early LOG Init complete
  LOG: DOSBox-X's working directory: /home/katyusha/program/dosbox-x/dosbox-x/src/dosbox-x-dosbox-x-v2023.09.01/src
  LOG: Logging init: beginning logging proper. This is the end of the early init logging
  LOG: Logging: No logfile was given. All further logging will be discarded.
  LOG: DOSBox-X version 2023.09.01 (Linux SDL1)
  Warning: XMODIFIERS is unspecified
  LOG: Current X11 keyboard layout (token) is: 'us'
  LOG: Host keyboard layout is now us (US English)
  LOG: Mapper keyboard layout is now us (US English)
  LOG: SDL1 auto-detected desktop as 1920 x 1080
  LOG: The default output for the video system: surface
  LOG: Configured windowposition: -
  LOG: X11 main window is 640 x 400 maximized=0
  LOG: X11 extension XRANDR is available
  LOG: XRandR CRTC 0: pos=(0,0) size=(1920,1080) outputs=1
  LOG: Our window lies on this CRTC display (window pos=(0,0) size=(640,400) match=(320,200)).
  LOG:   Goes to output 0: name='eDP-1' size_mm=(300 x 170)
  LOG: Screen report: Method 'XRandR' (1920.000 x 1080.000 pixels) at (0.000 x 0.000) (300.000 x 170.000 mm) (11.811 x 6.693 in) (162.560 x 161.365 DPI)
  LOG: Current X11 keyboard layout (token) is: 'us'
  LOG: SDL_mapper: US keyboard detected, set usescancodes=false
  LOG: ISA BCLK: 8333333.333Hz (25000000/3)
  LOG: monopal: green, 
  LOG: Active save slot: 1 [Empty]
  LOG: USING AVI+ZMBV
  LOG: Max 3670016 sz 16384
  LOG: Final 16384
  LOG: SDLNet_TCP_Open: Couldn't connect to remote host
  LOG: TiMidity: can't open control connection (host=127.0.0.1, port=7777)
  LOG: MIDI:fluidsynth: SoundFont not specified, and no system SoundFont found
  LOG: MIDI:synth: Specify .SF2 sound font file with midiconfig=
  LOG: MIDI:Opened device:none
  LOG: Pentium CMPXCHG8B emulation is enabled
  [1]    82588 floating point exception (core dumped)  ./dosbox-x

• Run from the dgb:

  
  ➜  src git:(master) ✗ gdb dosbox-x 
  GNU gdb (GDB) 13.2
  Copyright (C) 2023 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.
  Type "show copying" and "show warranty" for details.
  This GDB was configured as "loongarch64-unknown-linux-gnu".
  Type "show configuration" for configuration details.
  For bug reporting instructions, please see:
  <https://www.gnu.org/software/gdb/bugs/>.
  Find the GDB manual and other documentation resources online at:
  <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from dosbox-x... (gdb) run Starting program: /home/katyusha/program/dosbox-x/dosbox-x/src/dosbox-x-dosbox-x-v2023.09.01/src/dosbox-x

This GDB supports auto-downloading debuginfo from the following URLs: http://debuginfod.loongarch.zhcn.cc:8002 Enable debuginfod for this session? (y or [n]) y Debuginfod has been enabled. To make this setting permanent, add 'set debuginfod enabled on' to .gdbinit. Downloading separate debug info for /usr/lib/libts.so.0
Downloading separate debug info for /usr/lib/libfreetype.so.6
Downloading separate debug info for /usr/lib/libpcap.so.1
Downloading separate debug info for /usr/lib/libslirp.so.0
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1". Downloading separate debug info for /usr/lib/libvpx.so.8
Downloading separate debug info for /usr/lib/libcairo.so.2
Downloading separate debug info for /usr/lib/libgsm.so.1
Downloading separate debug info for /usr/lib/libopenjp2.so.7
Downloading separate debug info for /usr/lib/libopus.so.0
Downloading separate debug info for /usr/lib/libvorbis.so.0
Downloading separate debug info for /usr/lib/libvorbisenc.so.2
Downloading separate debug info for /usr/lib/libx265.so.199
Downloading separate debug info for /usr/lib/libxvidcore.so.4
Downloading separate debug info for /usr/lib/libbluray.so.2
Downloading separate debug info for /usr/lib/libgnutls.so.30
Downloading separate debug info for /usr/lib/libssh.so.4
Downloading separate debug info for /usr/lib/libvdpau.so.1
Downloading separate debug info for /usr/lib/libdrm.so.2
Downloading separate debug info for /usr/lib/libbrotlidec.so.1
Downloading separate debug info for /usr/lib/libnl-genl-3.so.200
Downloading separate debug info for /usr/lib/libnl-3.so.200
Downloading separate debug info for /usr/lib/libpulse-simple.so.0
Downloading separate debug info for /usr/lib/libpulse.so.0
Downloading separate debug info for /usr/lib/libportaudio.so.2
Downloading separate debug info for /usr/lib/libinstpatch-1.0.so.2
Downloading separate debug info for /usr/lib/libsoxr.so.0
Downloading separate debug info for /usr/lib/libcairo-gobject.so.2
Downloading separate debug info for /usr/lib/libpangocairo-1.0.so.0
Downloading separate debug info for /usr/lib/libpango-1.0.so.0
Downloading separate debug info for /usr/lib/libpcre2-8.so.0
Downloading separate debug info for /usr/lib/libfontconfig.so.1
Downloading separate debug info for /usr/lib/libbrotlienc.so.1
Downloading separate debug info for /usr/lib/libogg.so.0
Downloading separate debug info for /usr/lib/libmpg123.so.0
Downloading separate debug info for /usr/lib/libvorbisfile.so.3
Downloading separate debug info for /usr/lib/libzstd.so.1
Downloading separate debug info for /usr/lib/libidn2.so.0
Downloading separate debug info for /usr/lib/libunistring.so.5
Downloading separate debug info for /usr/lib/libtasn1.so.6
Downloading separate debug info for /usr/lib/libXfixes.so.3
Downloading separate debug info for /usr/lib/libXau.so.6
Downloading separate debug info for /usr/lib/libXdmcp.so.6
Downloading separate debug info for /usr/lib/libgraphite2.so.3
Downloading separate debug info for /usr/lib/libbrotlicommon.so.1
Downloading separate debug info for /usr/lib/pulseaudio/libpulsecommon-16.1.so
Downloading separate debug info for /usr/lib/libjpeg.so.8
Downloading separate debug info for /usr/lib/libpangoft2-1.0.so.0
Downloading separate debug info for /usr/lib/libgcrypt.so.20
Downloading separate debug info for /usr/lib/liblz4.so.1
Downloading separate debug info for /usr/lib/libgpg-error.so.0
LOG: Early LOG Init complete
LOG: DOSBox-X's working directory: /home/katyusha/program/dosbox-x/dosbox-x/src/dosbox-x-dosbox-x-v2023.09.01/src LOG: Logging init: beginning logging proper. This is the end of the early init logging LOG: Logging: No logfile was given. All further logging will be discarded. LOG: DOSBox-X version 2023.09.01 (Linux SDL1) [New Thread 0x7fffe6e02b00 (LWP 82660)] Warning: XMODIFIERS is unspecified [New Thread 0x7fffe22aeb00 (LWP 82661)]
[Thread 0x7fffe22aeb00 (LWP 82661) exited] LOG: Current X11 keyboard layout (token) is: 'us' LOG: Host keyboard layout is now us (US English) LOG: Mapper keyboard layout is now us (US English) LOG: SDL1 auto-detected desktop as 1920 x 1080 LOG: The default output for the video system: surface LOG: Configured windowposition: - LOG: X11 main window is 640 x 400 maximized=0 LOG: X11 extension XRANDR is available LOG: XRandR CRTC 0: pos=(0,0) size=(1920,1080) outputs=1 LOG: Our window lies on this CRTC display (window pos=(0,0) size=(640,400) match=(320,200)). LOG: Goes to output 0: name='eDP-1' size_mm=(300 x 170) LOG: Screen report: Method 'XRandR' (1920.000 x 1080.000 pixels) at (0.000 x 0.000) (300.000 x 170.000 mm) (11.811 x 6.693 in) (162.560 x 161.365 DPI) LOG: Current X11 keyboard layout (token) is: 'us' LOG: SDL_mapper: US keyboard detected, set usescancodes=false LOG: ISA BCLK: 8333333.333Hz (25000000/3) LOG: monopal: green, LOG: Active save slot: 1 [Empty] LOG: USING AVI+ZMBV LOG: Max 3670016 sz 16384 LOG: Final 16384 [New Thread 0x7fffe22aeb00 (LWP 82664)] LOG: SDLNet_TCP_Open: Couldn't connect to remote host LOG: TiMidity: can't open control connection (host=127.0.0.1, port=7777) LOG: MIDI:fluidsynth: SoundFont not specified, and no system SoundFont found LOG: MIDI:synth: Specify .SF2 sound font file with midiconfig= LOG: MIDI:Opened device:none LOG: Pentium CMPXCHG8B emulation is enabled

Thread 1 "dosbox-x" received signal SIGFPE, Arithmetic exception. __log (x=4.9406564584124654e-324) at ../sysdeps/ieee754/dbl-64/e_log.c:69 69 r3 = r * r2;
(gdb) bt

0 __log (x=4.9406564584124654e-324) at ../sysdeps/ieee754/dbl-64/e_log.c:69

1 0x0000555555ca9d38 in voodoo_init(int) (type=) at voodoo_emu.cpp:2962

2 0x0000555555c9f788 in Voodoo_Initialize(long, long, bool) (emulation_type=, card_type=card_type@entry=1, max_voodoomem=max_voodoomem@entry=true)

at voodoo_interface.cpp:293

3 0x0000555555c9e79c in VOODOO::VOODOO(Section*) (this=0x55555ab11bd0, configuration=) at voodoo.cpp:123

4 0x0000555555c9e428 in VOODOO_OnPowerOn(Section*) () at voodoo.cpp:236

5 0x0000555555e6b194 in DispatchVMEvent(vm_event) (event=event@entry=VM_EVENT_POWERON) at setup.cpp:1036

6 0x0000555555a135c0 in VM_PowerOn() () at sdlmain.cpp:7398

7 0x000055555568cef4 in VM_PowerOn() () at sdlmain.cpp:8939

8 main(int, char**) (argc=, argv=0x7ffffffeec08) at sdlmain.cpp:9165

(gdb)

### Steps to reproduce the behaviour

1. Clone from `https://aur.archlinux.org/dosbox-x.git`
2. Alter `PKGBUILD` file.

Add loong64 to arch Change x86_64 to native Change -O2 or -O3 to -O0 Add -g to FLAG

4. Run `makepkg`.
5. Go to `src/dosbox-x-dosbox-x-v2023.09.01/src/` path
6. Run `dosbox-x`.

### Expected behavior

_No response_

### What operating system(s) this bug have occurred on?

Arch Linux loongarch64

### What version(s) of DOSBox-X have this bug?

Release 2023.09.01 2023-09-01 17:00

### Used configuration

_No response_

### Output log

_No response_

### Additional information

_No response_

### Have you checked that no similar bug report(s) exist?

- [X] I have searched and didn't find any similar bug report.

### Code of Conduct & Contributing Guidelines

- [X] I agree to follow the code of conduct and the contributing guidelines.

[xry111]

Per a duplicate report at https://github.com/loongson-community/discussions/issues/48, the FCSR value is 0x3df when the program crashes. So FE_INEXACT has somehow been set to trap (indicated by the lowest bit of the FCSR).

Can you try setting a breakpoint on feenableexcept with gdb?