Commit graph

1615 commits

Author SHA1 Message Date
Subv
13f93a0188 Services/AM: Stubbed am:app::GetNumContentInfos to return 0 results.
Named the service functions in am:app as per 3dbrew.

This fixes an illegal read loop in Steel Diver
2015-07-21 00:12:13 -05:00
Subv
38a7f1b727 Services/CFG: Added some missing functions to cfg:s 2015-07-20 19:52:07 -05:00
Subv
275aaeef9c Kernel/Scheduling: Clean up a thread's wait_objects when its scheduled.
They'll be reset if needed during the next svcWaitSynchronization call (if there's any pending)
2015-07-20 17:15:54 -05:00
bunnei
cd2bb2dc69 Merge pull request #939 from Subv/queryprocmem
Kernel/SVC: Implemented svcQueryProcessMemory
2015-07-20 00:34:41 -04:00
bunnei
863a963911 Merge pull request #951 from Subv/bit5
GPU/DisplayTransfer: Implemented bit 5 in the transfer flags.
2015-07-19 22:42:44 -04:00
bunnei
21a696abde Merge pull request #946 from archshift/update-frdu
Add more frd:u unknown service commands from 3dbrew
2015-07-19 22:39:51 -04:00
zawata
395e63d5aa SOC:U : Update deprecated function gethostbyname() to getaddrinfo() 2015-07-19 19:32:12 -07:00
Subv
63dbff9b1f GPU/DisplayTransfer: Implemented bit 5 in the transfer flags.
It tells the GPU to not swizzle/de-swizzle the input during the transfer.
2015-07-19 21:30:42 -05:00
Lioncash
a2f0a3d019 dyncom: Properly retrieve the PC value in BX if used. 2015-07-19 22:20:14 -04:00
archshift
84a88005e2 Change trace/unimplemented service call logs to use hex
Changes the log to use hex in the parameter list instead of decimal.
2015-07-19 13:34:38 -07:00
archshift
d1e6afaba1 Add more frd:u unknown service commands from 3dbrew 2015-07-19 13:30:20 -07:00
zawata
972dccc3f6 Core : Change variable type
and fix various warnings
2015-07-19 04:12:39 -07:00
zawata
1be1ff23a9 Core : Fix Conversion Warnings 2015-07-19 03:59:47 -07:00
Yuri Kunde Schlesner
13286903e6 Dyncom: Support for a missing ARMv6 Thumb MOV encoding 2015-07-18 03:41:49 -03:00
Subv
83fa3f977d Kernel/SVC: Implemented svcQueryProcessMemory 2015-07-17 14:55:35 -05:00
Yuri Kunde Schlesner
41513cfb0c Merge pull request #938 from Subv/querymem
Kernel/SVC: Implemented svcQueryMemory.
2015-07-17 12:33:26 -07:00
Subv
9e2962081a Kernel/SVC: Implemented svcQueryMemory. 2015-07-17 11:03:56 -05:00
bunnei
32be6a4553 Merge pull request #937 from yuriks/codeset-leak
Ensure all kernel objects are released during shutdown
2015-07-17 11:03:28 -04:00
zawata
f723a498e7 Core\HLE : Fix Warning
"signed/unsigned mismatch"
2015-07-17 00:50:53 -07:00
Yuri Kunde Schlesner
dc39d06950 Ensure all kernel objects are released during shutdown
This commit fixes several kernel object leaks. The most severe of them
was threads not being removed from the private handle table used for
CoreTiming events. This resulted in Threads never being released, which
in turn held references to Process, causing CodeSets to never be freed
when loading other applications.
2015-07-17 02:24:13 -03:00
Lioncash
23dbbb786a arm_dyncom_interpreter: Simplify assignment in SMLAW
Also a side-benefit of not having implementation-defined behavior.
2015-07-16 22:08:12 -04:00
bunnei
946f0ee2f4 Merge pull request #918 from yuriks/romfs
Do not load entire RomFS to memory, read from the file as needed instead (rebased)
2015-07-16 18:08:46 -04:00
archshift
2501f111a6 Merge pull request #904 from aroulin/y2r-narrowing-warning
Y2R: Fix narrowing warning
2015-07-13 22:07:39 -07:00
Yuri Kunde Schlesner
62c2a262b2 Loader: Fix variable type and remove unused variable 2015-07-13 21:10:13 -03:00
Yuri Kunde Schlesner
a1f08788d9 Archive: Correct a few incorrect types in function signatures
Buffer lengths should be size_t, and file offsets should be u64.
2015-07-13 21:10:12 -03:00
Yuri Kunde Schlesner
2d7299a86f Loader: Remove unnecessary pointer indirection to IOFile 2015-07-13 20:00:56 -03:00
condut
c385b7767d FS: Stream RomFS from file instead of loading all of it to memory 2015-07-13 19:57:12 -03:00
Tony Wasserka
29abb11e8f CiTrace: Clean up initialization method. 2015-07-13 22:27:21 +02:00
Tony Wasserka
fd62580985 CiTrace: Record default vertex attributes. 2015-07-13 22:27:21 +02:00
Tony Wasserka
902fa4da52 Add CiTrace recording support.
This is exposed in the GUI as a new "CiTrace Recording" widget.

Playback is implemented by a standalone 3DS homebrew application (which only runs reliably within Citra currently; on an actual 3DS it will often crash still).
2015-07-13 22:27:20 +02:00
Tony Wasserka
93d66475d4 GPU: Be robust against nullptr addresses; properly reset busy bits in the trigger registers. 2015-07-13 22:27:20 +02:00
Tony Wasserka
256bdfb579 HW: Fix a stupid issue which led to unknown register reads/writes. 2015-07-13 22:27:20 +02:00
bunnei
b6719ec922 Merge pull request #921 from linkmauve/fix-applet
Fix applet includes using iwyu
2015-07-12 17:25:55 -04:00
Yuri Kunde Schlesner
d4f35fd989 Kernel: Add CodeSet case to Object::IsWaitable 2015-07-12 18:15:16 -03:00
Emmanuel Gil Peyrot
fe909b3b5a Core: Fix applet includes using iwyu. 2015-07-12 22:10:37 +01:00
aroulin
1f125a04c3 Y2R: Fix narrowing warning 2015-07-12 03:49:16 -04:00
bunnei
f4e1d8ea36 Merge pull request #823 from Subv/applets_drawing
Library applet support (swkbd for now)
2015-07-11 23:56:59 -04:00
Subv
725d5eea78 Applets: Reworked how the Applet update event is handled.
Applets are now cleaned up in AppletUpdateEvent after calling their respective Update method.
2015-07-11 22:32:12 -05:00
Yuri Kunde Schlesner
5c5cf2f8e0 Core: Properly configure address space when loading a binary
The code now properly configures the process image to match the loaded
binary segments (code, rodata, data) instead of just blindly allocating
a large chunk of dummy memory.
2015-07-11 23:54:42 -03:00
Yuri Kunde Schlesner
51820691e7 Memory: Fix unmapping of pages 2015-07-11 23:49:53 -03:00
Yuri Kunde Schlesner
34f5f77507 Loader: Clean up 3dsx loader a bit, fixing a potential buffer overrun 2015-07-11 23:49:52 -03:00
Yuri Kunde Schlesner
fdbf410bd7 Loader: Make 3dsx loader logs a bit less confusing 2015-07-11 23:49:52 -03:00
Yuri Kunde Schlesner
d9556912b4 Kernel: Remove unused member from Event 2015-07-11 23:49:51 -03:00
Subv
621ee10eae Applets: Add infrastructure to allow custom drawing and input handling in Applets. 2015-07-11 21:47:23 -05:00
Subv
2a6ebadf66 HLE/APT: Initial HLE support for applets.
Currently only the SWKBD is emulated, and there's currently no way to ask the user for input, so it always returns "Subv" as the text.
2015-07-11 21:47:22 -05:00
Yuri Kunde Schlesner
867c28ae03 Merge pull request #876 from linkmauve/include-cleanups
Cleanup includes, mostly in common
2015-07-10 16:36:12 -07:00
aroulin
769407e4fa Loader: Remove log line causing warning 2015-07-08 00:04:21 +02:00
bunnei
0ef3f12c71 Merge pull request #797 from linkmauve/blended-downscaling
Implement blended downscaling for display transfers
2015-07-06 11:35:55 -04:00
bunnei
c19f9945b7 Merge pull request #885 from Subv/ipc_headers
Services/SOC: Added command headers to some of the soc commands.
2015-07-06 11:19:58 -04:00
Lioncash
e3e8ad48c1 vfp: Change return type of VFPInit from unsigned int to void. 2015-06-29 14:51:38 -04:00
Lioncash
32a6379bc8 vfp: Handle accesses to FPINST/FPINST2 system registers
Also has a side-benefit of correcting access to the FPEXC register.
2015-06-29 03:27:26 -04:00
Emmanuel Gil Peyrot
641e78bccf GPU: Implement blended downscaling for display transfers. 2015-06-28 15:11:26 +01:00
Emmanuel Gil Peyrot
8ee814ec27 GPU: Use shifts instead of multiplications to calculate the actual size of the output. 2015-06-28 14:31:13 +01:00
Emmanuel Gil Peyrot
4964a359e1 Core: Cleanup hw includes. 2015-06-28 00:46:39 +01:00
Emmanuel Gil Peyrot
7b746914b9 Core: Cleanup soc:U includes. 2015-06-28 00:36:55 +01:00
Emmanuel Gil Peyrot
f48b28ad27 Core, VideoCore: Replace or fix exit() calls. 2015-06-28 00:36:55 +01:00
Emmanuel Gil Peyrot
e5fcabdd69 Core: Cleanup file_sys includes. 2015-06-28 00:36:54 +01:00
Emmanuel Gil Peyrot
aea15f5c73 Core: Cleanup core includes. 2015-06-28 00:36:54 +01:00
Emmanuel Gil Peyrot
45c4781544 CitraQt: Cleanup includes. 2015-06-28 00:36:54 +01:00
Emmanuel Gil Peyrot
596b7c4f63 Common: Cleanup key_map includes. 2015-06-28 00:36:54 +01:00
Emmanuel Gil Peyrot
2d044a67c9 Common: Cleanup memory and misc includes. 2015-06-28 00:36:54 +01:00
Emmanuel Gil Peyrot
8cf9eb7f43 Common: Fix FileUtil includes, and everything relying on those. 2015-06-28 00:36:53 +01:00
Emmanuel Gil Peyrot
c345247431 Services: Use the standard _WIN32 define in soc:U instead of our own EMU_PLATFORM. 2015-06-27 14:43:56 +01:00
Subv
bd336cfdce Services/SOC: Added command headers to some of the soc commands. 2015-06-25 12:55:27 -05:00
Yuri Kunde Schlesner
81488d7a6a Add helpers to create IPC command buffer headers and descriptors 2015-06-22 19:24:19 -03:00
Yuri Kunde Schlesner
dc09a2ecb5 Merge pull request #860 from yuriks/y2r-color
Color support for Y2R
2015-06-21 17:22:34 -07:00
Yuri Kunde Schlesner
3e6663da43 Y2R: Rework conversion process, enabling support for all formats 2015-06-21 20:58:55 -03:00
bunnei
9850f98339 Merge pull request #855 from purpasmart96/service_rearrangment
Services: Continue separation of services into their own folders
2015-06-21 10:55:02 -04:00
Yuri Kunde Schlesner
29d2b70ea4 Y2R: Re-organize how params are stored. Support SetConversionParams 2015-06-20 19:21:16 -03:00
bunnei
71e8822d23 kernel: Fix svcWaitSynch to always acquire requested wait objects. 2015-06-16 22:34:39 -04:00
Lioncash
f1ff0fbf07 Merge pull request #866 from lioncash/typo
hw: Fix mismatched Write call
2015-06-16 17:04:34 -04:00
Lioncash
bbe4430922 hw: Fix mismatched Write call 2015-06-16 15:49:22 -04:00
Lioncash
71858fc7cc vfp: Handle accesses to the VFP media feature registers
These are able to be accessed in any privilege mode.
2015-06-12 20:21:51 -04:00
Lioncash
e817224f89 vfp: Implement VMOVBCR/VMOVBRC 2015-06-12 02:47:10 -04:00
purpasmart96
7933dbe6a0 Services: Continue separation of services into their own folders 2015-06-11 20:41:59 -07:00
Lioncash
04f204ed00 arm_dyncom_thumb: Fix handling of writeback for thumb LDMIA 2015-06-04 08:42:14 -04:00
Subv
66c1db7288 ExtSavedata: Save the icon passed to CreateExtSaveData to the correct folder.
Organize the ExtSaveData folders as they are stored in the console.
2015-06-01 21:48:19 -05:00
Lioncash
1974da272d Merge pull request #838 from lioncash/thumb
arm_dyncom_thumb: Implement missing instructions.
2015-05-31 22:19:31 -04:00
Lioncash
c00781a908 arm_dyncom_thumb: Fix encoding of BKPT's immediate 2015-05-31 21:51:46 -04:00
Lioncash
85b1dddda1 arm_dyncom_thumb: Implement CPS and SETEND 2015-05-31 21:51:25 -04:00
Lioncash
7caef19c89 arm_dyncom_thumb: Implement SXTH, SXTB, UXTH, and UXTB. 2015-05-31 21:50:57 -04:00
Lioncash
b64dea80ce arm_dyncom_thumb: Implement REV, REV16, and REVSH. 2015-05-31 21:50:18 -04:00
archshift
0414ad20cb Merge pull request #811 from archshift/commonify
Commonify video_core utility headers
2015-05-31 09:55:29 -07:00
bunnei
833936fc64 Merge pull request #832 from yuriks/refresh-rate-option
Remove gpu_refresh_rate configuration option
2015-05-31 04:48:20 -04:00
archshift
76690392bf Move video_core/color.h to common/color.h 2015-05-30 11:17:37 -07:00
Yuri Kunde Schlesner
8a04c65e20 Merge pull request #810 from yuriks/memmap
Kernel: Add VMManager to manage process address spaces
2015-05-29 18:00:17 -07:00
Yuri Kunde Schlesner
d65b42a69a Remove gpu_refresh_rate configuration option
Changing it makes emulation inherently inaccurate. It also had a wrong
default value (30, whereas the real system has a refresh rate of 60 Hz)
which, even if changed, would continue to be used unless people manually
removed it from their config files.
2015-05-29 19:39:26 -03:00
Emmanuel Gil Peyrot
b1503b2020 Remove every trailing whitespace from the project (but externals). 2015-05-29 21:59:29 +01:00
Lioncash
a3cad6c332 hid: Get rid of undefined behavior
Modifying a variable twice across a sequence point.
2015-05-27 12:20:12 -04:00
Yuri Kunde Schlesner
88365a23e7 Memmap: Remove unused global pointers to memory areas 2015-05-27 03:24:12 -03:00
Yuri Kunde Schlesner
0a60aa75c2 Kernel: Add VMManager to manage process address spaces
This enables more dynamic management of the process address space,
compared to just directly configuring the page table for major areas.

This will serve as the foundation upon which the rest of the Kernel
memory management functions will be built.
2015-05-27 03:24:12 -03:00
Yuri Kunde Schlesner
ad883db7a9 Merge pull request #826 from lioncash/tables
arm_dyncom_thumb: Merge STR/LDR table subsets.
2015-05-26 22:05:13 -07:00
Lioncash
0265d950e6 arm_dyncom_thumb: Merge STR/LDR table subsets. 2015-05-26 21:15:29 -04:00
Lioncash
0ff414f561 Merge pull request #825 from lioncash/dync
dyncom: Minor cleanup.
2015-05-26 20:27:48 -04:00
Lioncash
f62ab75c67 arm_dyncom_interpreter: Remove unused variable
Thum decoding directly checks if the thumb bit is set instead of using a temporary.
2015-05-26 17:43:08 -04:00
bunnei
4d93c30c97 Merge pull request #821 from Subv/ImportDisplayCaptureInfo
Service/GSP: Implemented ImportDisplayCaptureInfo.
2015-05-26 01:14:21 -04:00
Subv
fa397494b0 Service/GSP: Implemented ImportDisplayCaptureInfo. 2015-05-25 23:35:14 -05:00
Subv
732839b1f4 Core/SVC: Map the shared memory created in CreateMemoryBlock to the specified address.
This SharedMemory can be passed to service functions (Which should map the memory into their own address space).
2015-05-25 16:17:26 -05:00
Lioncash
8c1ab1c2c4 arm_dyncom_interpreter: Remove unused macro 2015-05-24 19:21:05 -04:00
Lioncash
6278937a28 dyncom: Get rid of armemu.h 2015-05-23 20:51:02 -04:00
Lioncash
ebca3a4902 y2r_u: Remove unused variable in StartConversion 2015-05-23 00:46:22 -04:00
Lioncash
92fd2753c5 dyncom: Remove unused cpu parameter from decode_thumb_instr 2015-05-22 23:42:23 -04:00
Lioncash
097d8282a6 dyncom: remove load_r15 from arm_inst
It's entirely unused. Also allows getting rid of more clunky macros.
2015-05-22 23:38:00 -04:00
Lioncash
8617938441 dyncom: Remove unnecessary parameter for load/store operations 2015-05-22 23:14:22 -04:00
bunnei
41531eeb32 Merge pull request #801 from purpasmart96/hid_stubs
HID: Stub DisableAccelerometer and DisableGyroscopeLow
2015-05-22 20:44:22 -04:00
Lioncash
932aeb333f Merge pull request #802 from bunnei/vfp-trace-log
VFP: Log as trace to get rid of spamming.
2015-05-22 19:44:22 -04:00
bunnei
3a348a90fd VFP: Log as trace to get rid of spamming. 2015-05-22 19:42:44 -04:00
purpasmart96
0c62b7b106 HID: Stub DisableAccelerometer and DisableGyroscopeLow 2015-05-22 15:55:27 -07:00
tfarley
62668688e1 Flush for y2r (moflex) 2015-05-22 15:51:34 -07:00
tfarley
05dc633a8c OpenGL renderer 2015-05-22 15:51:18 -07:00
tfarley
6d995b1ff6 INI hw/sw renderer toggle 2015-05-22 14:37:55 -07:00
Yuri Kunde Schlesner
eca2b71fa8 Merge pull request #798 from yuriks/y2r-bw
Service::Y2R: Support for grayscale decoding of specific formats
2015-05-22 14:06:20 -07:00
Yuri Kunde Schlesner
9108482888 Service::Y2R: Support for grayscale decoding of specific formats
Implements unrotated planar YUV 4:2:0 -> RGB24 conversions in Y2R.
Currently only the Y (luma) channel is used, so the results don't
contain color. This will be added in a later PR at some point.

This is enough to get all currently know Moflex videos to decode. (Some
don't display on-screen due to seemingly unrelated reasons.)

Thanks to @archshift for doing the initial implementation which I
cleaned up and then fixed the 8x8 block mode.
2015-05-22 17:57:21 -03:00
Lioncash
572c91a024 dyncom: Eliminate clang warnings
Gets rid of a whole load of missing brace initialization warnings.
2015-05-21 16:43:21 -04:00
Emmanuel Gil Peyrot
b8f93e6b18 Kernel: Fix a warning introduced with ResourceLimit, and remove the fallback code to prevent it from happening again. 2015-05-21 20:54:49 +02:00
bunnei
25f14e76f1 y2r_u: Stub StartConversion to prevent moflex games from hanging. 2015-05-20 18:05:47 -04:00
bunnei
0b7d2941cf Kernel: Move reschedules from SVCs to actual mechanisms that reschedule. 2015-05-20 18:05:47 -04:00
bunnei
859707642e Merge pull request #766 from purpasmart96/cfg_service_update
CFG: Update the cfg service to be like other integrated services
2015-05-18 10:18:58 -04:00
bunnei
f0365f28c2 Merge pull request #772 from lioncash/warn
core/video_core: Fix a few warnings when compiling on MSVC.
2015-05-18 08:08:49 -04:00
archshift
11057488f9 Implement svcBreak 2015-05-16 22:06:59 -07:00
bunnei
9fb9750411 Merge pull request #781 from archshift/delete
Delete unused hle/coprocessor.cpp
2015-05-16 11:16:29 -04:00
archshift
4b300ba763 Delete unused hle/coprocessor.cpp 2015-05-15 23:24:11 -07:00
purpasmart96
dd9aed9ea9 CFG: Update the cfg service to be like other integrated services 2015-05-15 20:19:29 -07:00
purpasmart96
0fd727f3ad APT/FS: Remove asserts that were causing false positives 2015-05-15 19:25:02 -07:00
Yuri Kunde Schlesner
12f6216741 Merge pull request #774 from lioncash/decodings
dyncom: Add ARMv6K NOP and hint instructions to the interpreter.
2015-05-15 11:36:20 -07:00
bunnei
6abed88092 Merge pull request #770 from lioncash/dyncom_clean
dyncom: Minor cleanup.
2015-05-15 09:44:39 -04:00
Subv
d3634d4bf4 Core/ResourceLimits: Implemented the basic structure of ResourceLimits.
Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.
2015-05-14 22:50:13 -05:00
Yuri Kunde Schlesner
dd4430609a Memory: Use a table based lookup scheme to read from memory regions 2015-05-15 00:04:43 -03:00
Yuri Kunde Schlesner
52158c1b8d Memory: Read SharedPage directly from Memory::Read 2015-05-15 00:04:41 -03:00
Yuri Kunde Schlesner
ec514b16a6 Memory: Read ConfigMem directly from Memory::Read 2015-05-15 00:04:39 -03:00
Yuri Kunde Schlesner
7ada357b2d Memmap: Re-organize memory function in two files
memory.cpp/h contains definitions related to acessing memory and
configuring the address space
mem_map.cpp/h contains higher-level definitions related to configuring
the address space accoording to the kernel and allocating memory.
2015-05-15 00:04:38 -03:00
Yuri Kunde Schlesner
a251721bf3 Memmap: Remove unused declarations 2015-05-15 00:04:38 -03:00
Lioncash
8cd72428c9 dyncom: Add ARMv6K NOP and hint instructions to the decoding table 2015-05-14 16:25:02 -04:00
Lioncash
699b67d7cf dyncom: Handle some MSR variants individually
This is necessary, as hint instructions will be recognized as MSR, which is pretty bad.
2015-05-14 16:24:51 -04:00
Lioncash
be0119be08 dyncom: Move exclusive load/stores above bbl and swi in the decoding table 2015-05-14 16:24:39 -04:00
Lioncash
1e0255364c dyncom: Remove duplicate enums/prototypes
These are already defined in arm_dyncom_interpreter_dec.cpp.
2015-05-14 14:32:17 -04:00
Lioncash
f4921d0f9d dyncom: Remove unnecessary defines
These can simply be const vars.
2015-05-14 14:32:16 -04:00
Lioncash
0530fd2499 dyncom: Make translation-unit functions and variables static 2015-05-14 14:32:07 -04:00
Lioncash
773b1ef6bf vfp: Get rid of warnings
- Unary minus operator applied to unsigned type.
- Unsafe use of bool.
2015-05-14 13:54:15 -04:00
Lioncash
150e700729 process: Get rid of warnings
Sign mismatches and "forcing value to bool" warnings.
2015-05-14 12:59:14 -04:00
Lioncash
f3c4de4ce4 dyncom: Remove unnecessary typedefs 2015-05-14 11:51:46 -04:00
Lioncash
a48b4ec583 dyncom: Remove unused structs 2015-05-14 11:33:50 -04:00
Lioncash
207087c856 thread: Fix a conditional check in Reschedule 2015-05-14 11:10:04 -04:00
bunnei
e83bc5b7ee dyncom: Removed irrelevant log. 2015-05-14 00:24:38 -04:00
Lioncash
832c130ed1 dyncom: Fix decoding of BKPT's immediate
A shift here is intended since the representation is imm12:imm4
2015-05-13 14:11:03 -04:00
bunnei
7d21b0663b Merge pull request #756 from purpasmart96/ptm_service_changes
PTM: Changed the ptm services  to be like the IR, HID, and APT services.
2015-05-12 23:10:54 -04:00
bunnei
cb2b2071a8 Merge pull request #748 from Subv/tls_max
Core/Memory: Add TLS support for creating up to 300 threads
2015-05-11 23:32:28 -04:00
bunnei
ee8da4c356 Merge pull request #751 from yuriks/idle-thread
Thread: Remove the idle thread
2015-05-11 23:22:47 -04:00
bunnei
6e26d063a5 Merge pull request #757 from Subv/scheduling
Core/Scheduling: Prepare the new priority in the thread queue when svcSetPriority is called
2015-05-11 22:54:00 -04:00
bunnei
6223496a49 Merge pull request #752 from lioncash/flush
vfp: Handle flush-to-zero mode.
2015-05-11 21:43:33 -04:00