Commit graph

1739 commits

Author SHA1 Message Date
Lioncash
530a5a1d09 Amend bizarre clang-format suggestions 2021-04-07 01:52:08 -04:00
Lioncash
1e964604bb k_scoped_scheduler_lock_and_sleep: Mark class as [[nodiscard]]
Prevents logic bugs from slipping through.
2021-04-07 01:45:04 -04:00
Lioncash
c018769016 k_scoped_lock: delete copy and move assignment operators
If we delete the copy and move constructor, we should also be deleting
the copy and move assignment operators (and even if this were intended,
it would be pretty odd to not document why it's done this way).
2021-04-07 01:25:57 -04:00
Lioncash
bc30aa8249 k_scoped_lock: Mark class as [[nodiscard]]
Prevents logic bugs of the kind described in the previous commit from
slipping through.
2021-04-07 01:23:08 -04:00
Lioncash
97e2604575 k_scheduler: Mark KScopedSchedulerLock as [[nodiscard]]
Prevents logic bugs like:

KScopedSchedulerLock{kernel};

instead of:

KScopedSchedulerLock lk{kernel};

from slipping through.
2021-04-07 01:19:29 -04:00
ameerj
24900674b7 kernel: Increase event and session counts
12.x increased the number of available sessions and event resource counts
2021-04-07 01:01:05 -04:00
Lioncash
55fc808d64 svc: Expand SVC tables
12.x expanded the range of SVC entries from 0x7F to 0xBF (with all new
entries being unused), so we can expand it to also match.
2021-04-07 00:55:33 -04:00
Lioncash
03dda80e2b process_capability: Handle extended SVC range
12.x extended the range of SVC IDs, so we need to expand the range of
bits that need to be tested.

The upside of this is that we can eliminate a range check, given the
whole range is used.
2021-04-07 00:35:49 -04:00
bunnei
cb7f2e5616 hle: kernel: Initialize preemption task after schedulers.
- Fixes a startup crash that occurs if CoreTiming tries to preempt before kernel initialization completes.
2021-03-27 10:04:13 -07:00
bunnei
10d6e9f32b hle: kernel: Breakup InitializeMemoryLayout. 2021-03-23 18:47:16 -07:00
bunnei
fb91647bca hle: kernel: k_memory_region_type: Minor code cleanup. 2021-03-23 18:42:04 -07:00
bunnei
4eac8703d2 hle: kernel: k_memory_region: Minor code cleanup. 2021-03-23 18:37:39 -07:00
bunnei
9032d21365 hle: kernel: k_memory_layout: Use pair instead of tuple. 2021-03-23 18:35:01 -07:00
bunnei
a32190d0c2 hle: kernel: k_system_control: Remove unnecessary inline. 2021-03-23 18:33:29 -07:00
bunnei
ab5995c7ae common: common_sizes: Move sizes to the Common namespace. 2021-03-23 18:31:46 -07:00
bunnei
1d78190843 hle: kernel: Merge KMemoryRegionAttr and KMemoryRegionType.
- Fixes clang errors with mixed enum arithmetic.
2021-03-21 15:53:21 -07:00
bunnei
3ffbe50e7d hle: kernel: Remove unused variable. 2021-03-21 15:47:24 -07:00
bunnei
fc5205fc84 hle: kernel: k_memory_region_type: Remove extra ". 2021-03-21 15:47:05 -07:00
bunnei
1996cae9cb hle: kernel: k_memory_layout: Move KMemoryRegionAllocator out of global. 2021-03-21 14:45:13 -07:00
bunnei
343eaecd38 hle: kernel: k_memory_layout: Derive memory regions based on board layout. 2021-03-21 14:45:13 -07:00
bunnei
8d0ba7ee49 common: common_sizes: Move Invalid to Size_* prefix and add missing values. 2021-03-21 14:45:03 -07:00
bunnei
80688362cf hle: kernel: k_memory_region: Refactor to simplify code. 2021-03-21 14:45:03 -07:00
bunnei
edbc505e52 hle: kernel: board: k_system_control: Extend to include memory region sizes. 2021-03-21 14:45:03 -07:00
bunnei
10265ad0e4 hle: kernel: board: Add secure_monitor module. 2021-03-21 14:45:03 -07:00
bunnei
28be8aec9a common: Move common sizes to their own header for code reuse. 2021-03-21 14:45:03 -07:00
bunnei
01f04fee32 hle: kernel: k_address_space_info: Cleanup. 2021-03-21 14:45:02 -07:00
bunnei
f2e1441567 hle: kernel: Add k_trace module. 2021-03-21 14:45:02 -07:00
bunnei
5762517728 hle: kernel: KSystemControl: Update to reflect board-specific behavior. 2021-03-21 14:45:02 -07:00
bunnei
a439867f2c hle: kernel: KMemoryManager: Add CalculateManagementOverheadSize. 2021-03-21 14:45:02 -07:00
bunnei
43a29b5803 hle: kernel: KMemoryManager: Add aliases. 2021-03-21 14:45:02 -07:00
bunnei
c17beefe3d hle: kernel: Add architecture and board specific memory regions. 2021-03-21 14:45:02 -07:00
bunnei
3fb64da452 hle: kernel: KMemoryRegion: Derive region values. 2021-03-21 14:45:02 -07:00
bunnei
5872561077 hle: kernel: Migrate some code from Common::SpinLock to KSpinLock. 2021-03-21 14:45:02 -07:00
bunnei
541b4353e4 hle: kernel: Add initial KMemoryRegionType module. 2021-03-21 14:45:02 -07:00
bunnei
778e0f8ec1 hle: kernel: Move KMemoryRegion to its own module and update. 2021-03-21 14:45:02 -07:00
bunnei
8f7eb194af common: Fiber: use a reference for YieldTo.
- Fixes another small leak.
2021-03-07 13:46:53 -08:00
bunnei
47af34003b hle: kernel: KThread: Rework dummy threads & fix memory leak.
- Dummy threads are created on thread local storage for all host threads.
- Fixes a leak by removing creation of fibers, which are not applicable here.
2021-03-05 17:10:57 -08:00
bunnei
a5ab85ac37
Revert "core: Switch to unique_ptr for usage of Common::Fiber." 2021-03-05 17:08:17 -08:00
bunnei
51fb0a6f96 core: Switch to unique_ptr for usage of Common::Fiber.
- With using unique_ptr instead of shared_ptr, we have more explicit ownership of the context.
- Fixes a memory leak due to circular reference of the shared pointer.
2021-02-27 11:56:04 -08:00
bunnei
09f7c355c6
Merge pull request #5953 from bunnei/memory-refactor-1
Kernel Rework: Memory updates and refactoring (Part 1)
2021-02-27 12:48:35 -07:00
ameerj
8e4c9c9852 kernel: Fix resource release exception on exit
After rewriting the resource limit, objects releasing reserved resources require a live kernel instance.
This commit fixes exceptions that occur due to the kernel being destroyed before some objects released their resources, allowing for a graceful exit.
2021-02-20 20:51:11 -05:00
bunnei
93e20867b0 hle: kernel: Migrate PageHeap/PageTable to KPageHeap/KPageTable. 2021-02-18 16:16:25 -08:00
bunnei
b1e27890e8 hle: kernel: Migrate MemoryManager to KMemoryManager. 2021-02-18 16:16:25 -08:00
bunnei
93109c870e hle: kernel: Migrate PageLinkedList to KPageLinkedList. 2021-02-18 16:16:25 -08:00
bunnei
65e0178cc0 hle: kernel: Migrate to KMemoryBlock, KMemoryBlockManager, and others. 2021-02-18 16:16:25 -08:00
bunnei
9e520e8f12 hle: kernel: Migrate SlabHeap to KSlabHeap. 2021-02-18 16:16:25 -08:00
bunnei
1d162f28d1 hle: kernel: Migrate MemoryLayout to KMemoryLayout. 2021-02-18 16:16:25 -08:00
bunnei
7ed5dd0d62 hle: kernel: Migrate AddressSpaceInfo to KAddressSpaceInfo. 2021-02-18 16:16:25 -08:00
bunnei
701ef616b2 hle: kernel: memory_manager: Rename AllocateContinuous to AllocateContinuous. 2021-02-18 16:16:24 -08:00
bunnei
f7a008d77f hle: kernel: KSystemControl does not belong in Memory namespace. 2021-02-18 16:16:24 -08:00
bunnei
6a19086001 hle: kernel: memory: PageHeap: Migrate to KPageBitmap class. 2021-02-18 16:16:24 -08:00
bunnei
a02566136c hle: kernel: Add KPageBitmap class. 2021-02-18 16:16:24 -08:00
bunnei
e7c33d1ad6 hle: kernel: system_control: Add function GenerateRandomU64. 2021-02-18 16:16:24 -08:00
bunnei
6da91da08e hle: kernel: Add KSpinLock implementation. 2021-02-18 16:16:24 -08:00
bunnei
0d62f30b00 hle: kernel: Rename SharedMemory to KSharedMemory. 2021-02-18 16:16:12 -08:00
ameerj
ec9b6641b1 kernel: More accurately reserve and release resources 2021-02-12 19:05:24 -05:00
ameerj
5fa6b15215 kernel: KScopedReservation implementation
This implements KScopedReservation, allowing resource limit reservations to be more HW accurate, and release upon failure without requiring too many conditionals.
2021-02-12 18:57:34 -05:00
Chloe
37939482fb
kernel: Unify result codes (#5890)
* kernel: Unify result codes

Drop the usage of ERR_NAME convention in kernel for ResultName. Removed seperation between svc_results.h & errors.h as we mainly include both most of the time anyways.

* oops

* rename errors to svc_results
2021-02-12 15:43:01 -08:00
Chloe
d0a760a34a
Merge pull request #5872 from lioncash/svc-error
svc: Provide more detailed error logs for svc functions
2021-02-08 12:27:36 +11:00
Lioncash
40ab2b9348 k_address_arbiter: Unfold R_UNLESS macros
Allows for more descriptive error messages and also doesn't hide
control-path exit returns from the reader.
2021-02-06 04:08:27 -05:00
Lioncash
b8fc74d74d k_address_arbiter: Remove unnecessary usages of std::addressof
This is a useful function in a generic context or with types that
overload unary operator&. However, primitives and pointers will never do
this, so we can opt for a more straightforward syntax.
2021-02-06 04:06:33 -05:00
Lioncash
7b9c58880f k_address_arbiter: Remove dead code
This code is never used, so we can remove it. It's in version control,
so it can always be brought back when needed.
2021-02-06 04:06:33 -05:00
Lioncash
75a60a6e22 svc: Provide more detailed error logs for svc functions
Allows SVC calls to have much more informative information during error
cases. This also doesn't hide control flow returns from the reader.
2021-02-06 02:03:40 -05:00
bunnei
1498a7c9a8
Merge pull request #5862 from bunnei/kevent
Kernel Rework: Refactor KEvent/KReadableEvent/KWritableEvent
2021-02-05 23:00:43 -08:00
bunnei
3a804752cb
Merge pull request #5875 from lioncash/identifier
k_priority_queue: Minor cleanup
2021-02-05 17:02:13 -08:00
bunnei
ea4f62615e hle: kernel: Drop R_UNLESS_NOLOG in favor of expanded if-statement. 2021-02-05 14:03:36 -08:00
bunnei
546af64340 hle: kernel: KAddressArbiter: Remove noisy error log. 2021-02-05 14:03:36 -08:00
bunnei
eba3c59a61 hle: kernel: svc: Cleanup KEvent/KReadableEvent/KWritableEvent SVCs. 2021-02-05 14:03:36 -08:00
bunnei
ff3c7c068b hle: kernel: Reimplement KReadableEvent and KWritableEvent. 2021-02-05 14:03:32 -08:00
bunnei
6bf80dfee0 hle: kernel: Implement KEvent. 2021-02-05 14:00:36 -08:00
bunnei
e9446d232f hle: kernel: KAddressArbiter: Use R_UNLESS_NOLOG where applicable. 2021-02-05 14:00:36 -08:00
bunnei
3f942c01f0 hle: kernel: Rename WritableEvent to KWritableEvent. 2021-02-05 14:00:36 -08:00
bunnei
e86a7e3691 hle: kernel: Rename ReadableEvent to KReadableEvent. 2021-02-05 14:00:36 -08:00
Lioncash
756365386a k_affinity_mask: Avoid implicit truncation to bool
This can cause compiler warnings. Instead, we can explicitly add a
boolean expression around it to naturally turn the result into a bool.
2021-02-04 15:35:46 -05:00
Lioncash
b944edc85d k_priority_queue: Unfold several declval usages
Given these are only used as function existence checks, we can simplify
some usages of declval, given they aren't particularly useful here.

Reduces a few template instantiations, which at most reduces compile
times a tiny bit.
2021-02-04 15:18:58 -05:00
Lioncash
31e6e58101 k_priority_queue: Simplify affinity mask type alias
We can make use of the _t variants of the templates to cut down on a
little bit of verbosity.
2021-02-04 14:57:41 -05:00
Lioncash
53aec1fe2d k_priority_queue: Resolved reserved identifier
An identifier containing a starting underscore followed by a capital
letter is reserved by the standard. It's trivial to avoid this by moving
the underscore to the end of the identifier.

While the likelihood of clashing here being minimal, we can turn a
"should not break" scenario into a definitive "will not break" one, so
why not?.
2021-02-04 14:55:08 -05:00
Chloe Marcec
2c6e940493 Simplify limitableresource names 2021-02-03 12:55:16 +11:00
Chloe Marcec
64c3582705 Compile error 2021-02-02 13:23:34 +11:00
Chloe Marcec
9e4b2d60bc Address issues 2021-02-02 13:23:00 +11:00
Chloe Marcec
ee333e063d fix compile error 2021-01-30 21:51:22 +11:00
Chloe Marcec
56742c6222 cleanup commenting 2021-01-30 21:20:35 +11:00
Chloe Marcec
7791cfd960 Drop m_ from lock 2021-01-30 21:19:49 +11:00
Chloe Marcec
3bf62c7a8a Move to GetGlobalTimeNs, fix GetTotalPhysicalMemoryAvailable 2021-01-30 21:03:10 +11:00
Chloe Marcec
3be1a565f8 kernel: Rewrite resource limit to be more accurate
Matches closer to hardware
2021-01-30 20:40:49 +11:00
bunnei
543e212554 hle: kernel: KLightLock: Fix several bugs. 2021-01-28 21:53:21 -08:00
bunnei
e24c6dab93 hle: kernel: KThread: Release thread resource on thread exit. 2021-01-28 21:49:47 -08:00
bunnei
10738839ad yuzu: debugger: Ignore HLE threads. 2021-01-28 21:42:27 -08:00
bunnei
3856564727 hle: kernel: process: Add state lock. 2021-01-28 21:42:26 -08:00
bunnei
ff46ef7ea3 hle: kernel: threading: Fix bug with host thread naming. 2021-01-28 21:42:26 -08:00
bunnei
6ee8340a6b hle: kernel: k_scheduler_lock: Cleanup. 2021-01-28 21:42:26 -08:00
bunnei
6e953f7f02 hle: kernel: Allocate a dummy KThread for each host thread, and use it for scheduling. 2021-01-28 21:42:26 -08:00
bunnei
37f74d8741 hle: kernel: k_scheduler: Use atomics for current_thread, etc. 2021-01-28 21:42:26 -08:00
bunnei
f6b10fad63 hle: kernel: k_scheduler: Fix for single core mode. 2021-01-28 21:42:26 -08:00
bunnei
0a1449e04b kernel: Fix build errors. 2021-01-28 21:42:26 -08:00
bunnei
ca78f77827 hle: kernel: KScheduler: Introduce thread context_guard. 2021-01-28 21:42:26 -08:00
bunnei
cdd14b03e5 hle: kernel: Recode implementation of KThread to be more accurate. 2021-01-28 21:42:26 -08:00
bunnei
1470338458 kernel: svc_types: Add ThreadActivity. 2021-01-28 21:42:26 -08:00
bunnei
1772ebeb1e kernel: KSchedulerPriorityQueue: Lowest priority should be LowestThreadPriority. 2021-01-28 21:42:26 -08:00
bunnei
1f99f5473c kernel: k_light_lock: Simplify EmuThreadHandle implementation. 2021-01-28 21:42:26 -08:00
bunnei
c0f5830323 hle: kernel: TimeManager: Simplify to not rely on previous EmuThreadHandle implementation. 2021-01-28 21:42:26 -08:00
bunnei
ff186b2498 core: hle: kernel: object: Implement Finalize() virtual method. 2021-01-28 21:42:26 -08:00
bunnei
33b4930280 core: hle: kernel: svc_results: Populate with several missing error codes. 2021-01-28 21:42:26 -08:00
bunnei
5a4fc4a529 core: hle: kernel: Implement KLightLock. 2021-01-28 21:42:26 -08:00
bunnei
97129bc742 core: hle: kernel: Implement KThreadQueue. 2021-01-28 21:42:25 -08:00
bunnei
4dbf3f4880 hle: kernel: KThread: Clean up thread priorities. 2021-01-28 21:42:25 -08:00
bunnei
1e55498110 hle: kernel: KThread: Reorganize thread priority defaults. 2021-01-28 21:42:25 -08:00
bunnei
0530292b97 hle: kernel: KThread: Fix ThreadType definition. 2021-01-28 21:42:25 -08:00
bunnei
4782985013 hle: kernel: Move single core "phantom mode" out of KThread.
- This is a workaround that does not belong in a kernel primitive.
2021-01-28 21:42:25 -08:00
bunnei
eea346ba8e hle: kernel: KThread: Remove thread types that do not exist. 2021-01-28 21:42:25 -08:00
bunnei
c0d3aef28c core: hle: kernel: Rename Thread to KThread. 2021-01-28 21:42:25 -08:00
Morph
008afa5d59 hle_ipc: Add Can(Read, Write)Buffer
Allows us to test whether a buffer can be read from or written to memory
2021-01-28 01:32:24 -05:00
Lioncash
8620de6b20 common/bit_util: Replace CLZ/CTZ operations with standardized ones
Makes for less code that we need to maintain.
2021-01-15 02:15:32 -05:00
bunnei
03dfc8d8e7 hle: kernel: thread: Preserve thread wait reason for debugging only.
- This is decoupled from core functionality and used for debugging only.
2021-01-11 14:23:17 -08:00
bunnei
6b2f653143 hle: kernel: k_scheduler_lock: Fix shadowing errors. 2021-01-11 14:23:16 -08:00
bunnei
912dd50146 core: hle: Integrate new KConditionVariable and KAddressArbiter implementations. 2021-01-11 14:23:16 -08:00
bunnei
952d1ac487 core: hle: kernel: Update KAddressArbiter. 2021-01-11 14:23:16 -08:00
bunnei
b4e6d6c385 core: hle: kernel: Update KConditionVariable. 2021-01-11 14:23:16 -08:00
bunnei
1212fa60b6 core: hle: kernel: Begin moving common SVC defintions to its own header. 2021-01-11 14:23:16 -08:00
bunnei
8a155c4058 hle: kernel: Remove unnecessary AddressArbiter definition. 2021-01-11 14:23:16 -08:00
bunnei
f12701b303 hle: kernel: k_scheduler: Cleanup OnThreadPriorityChanged. 2021-01-11 14:23:16 -08:00
bunnei
d1309fb275 hle: kernel: Rename thread "status" to "state". 2021-01-11 14:23:16 -08:00
bunnei
c3c43e32fc hle: kernel: thread: Replace ThreadStatus/ThreadSchedStatus with a single ThreadState.
- This is how the real kernel works, and is more accurate and simpler.
2021-01-11 14:23:16 -08:00
bunnei
7420a717e6 core: hle: kernel: Add some useful functions for checking kernel addresses. 2021-01-11 14:23:16 -08:00
bunnei
4bbf173fc1 core: hle: kernel: svc_types: Add type definitions for KAddressArbiter. 2021-01-11 14:23:16 -08:00
bunnei
35c3c078e3 core: hle: kernel: Update KSynchronizationObject. 2021-01-11 14:23:16 -08:00
bunnei
1ae883435d core: hle: kernel: Begin moving common SVC results to its own header. 2021-01-11 14:23:16 -08:00
ReinUsesLisp
4f13e270c8 core: Silence warnings when compiling without asserts 2021-01-05 04:18:16 -03:00
Morph
a745d87971 general: Fix various spelling errors 2021-01-02 10:23:41 -05:00
bunnei
eb318ffffc
Merge pull request #5249 from ReinUsesLisp/lock-free-pages
core/memory: Read and write page table atomically
2021-01-01 02:54:01 -08:00
bunnei
25d607f5f6
Merge pull request #5208 from bunnei/service-threads
Service threads
2020-12-30 22:06:05 -08:00
ReinUsesLisp
b3587102d1 core/memory: Read and write page table atomically
Squash attributes into the pointer's integer, making them an uintptr_t
pair containing 2 bits at the bottom and then the pointer. These bits
are currently unused thanks to alignment requirements.

Configure Dynarmic to mask out these bits on pointer reads.

While we are at it, remove some unused attributes carried over from
Citra.

Read/Write and other hot functions use a two step unpacking process that
is less readable to stop MSVC from emitting an extra AND instruction in
the hot path:

 mov         rdi,rcx
 shr         rdx,0Ch
 mov         r8,qword ptr [rax+8]
 mov         rax,qword ptr [r8+rdx*8]
 mov         rdx,rax
-and         al,3
 and         rdx,0FFFFFFFFFFFFFFFCh
 je          Core::Memory::Memory::Impl::Read<unsigned char>
 mov         rax,qword ptr [vaddr]
 movzx       eax,byte ptr [rdx+rax]
2020-12-29 21:54:49 -03:00
bunnei
85cfd96f62
Merge pull request #5247 from comex/xx-concepts
k_priority_queue: Fix concepts use
2020-12-29 16:50:20 -08:00
bunnei
82e0eeed21 hle: kernel: service_thread: Make thread naming more consistent. 2020-12-29 16:46:29 -08:00
bunnei
a2a0f5318d hle: kernel: Manage service threads on another thread.
- This is to allow service threads to defer destruction of themselves.
2020-12-29 16:46:29 -08:00
bunnei
b02464f685
Merge pull request #5246 from comex/xx-include
Add missing include of "core/hle/kernel/kernel.h"
2020-12-29 16:43:17 -08:00
bunnei
c192da3f82 hle: kernel: Manage host thread IDs using TLS.
- Avoids the need to have a large map of host to guest thread IDs.
2020-12-29 15:55:30 -08:00
comex
388cf58b31 k_priority_queue: Fix concepts use
- For `std::same_as`, add missing include of `<concepts>`.

- For `std::convertible_to`, create a replacement in `common/concepts.h`
  and use that instead.

  This would also be found in `<concepts>`, but unlike `std::same_as`,
  `std::convertible_to` is not yet implemented in libc++, LLVM's STL
  implementation - not even in master.  (In fact, `std::same_as` is the
  *only* concept currently implemented.  For some reason.)
2020-12-29 14:33:41 -05:00
comex
b36896b90e Add missing include of "core/hle/kernel/kernel.h"
This is needed as the header invokes methods on KernelCore.
2020-12-29 14:22:35 -05:00
ameerj
0383363a8f svc: demote SleepThread log to LOG_TRACE
This log is called often, and introduces a lot of noise when debug logging is enabled, making it difficult to see other debug logs.
2020-12-29 14:01:56 -05:00
bunnei
dfdac7d38a hle: kernel: Move ServiceThread ownership to KernelCore.
- Fixes a circular dependency which prevented threads from being released on shutdown.
2020-12-29 01:12:39 -08:00
bunnei
f57be2e626 hle: kernel: service_thread: Add thread name and take weak_ptr of ServerSession. 2020-12-29 01:06:39 -08:00
bunnei
d0649d0971 core: hle: kernel: Clear process list on boot. 2020-12-28 21:33:34 -08:00
bunnei
6d2f9428c5 core: kernel: Clear process list earlier. 2020-12-28 16:33:48 -08:00
bunnei
5d4715cc6a hle: kernel: hle_ipc: Remove SleepClientThread.
- This was kind of hacky, and no longer is necessary with service threads.
2020-12-28 16:33:48 -08:00
bunnei
8bc3d66354 hle: kernel: service_thread: Add parameter for thread pool size. 2020-12-28 16:33:47 -08:00
bunnei
28281ae250 core: hle: server_session: Use separate threads for each service connection. 2020-12-28 16:33:47 -08:00
bunnei
1279c7ce7a
Merge pull request #5131 from bunnei/scheduler-rewrite
Rewrite Kernel scheduler based on Atmosphere
2020-12-20 20:57:54 -08:00
bunnei
37194dd4e9
Merge pull request #5172 from lioncash/svc-wide
svc: Remove unnecessary casts
2020-12-11 17:39:30 -08:00
Lioncash
2de124e223 svc: Remove unnecessary casts
Simplifies and removes some casts. In all cases, these were generally
widening from a 32-bit unsigned type to a 64-bit unsigned type, so no
information would be lost from the conversion.
2020-12-08 15:42:10 -05:00