Bedrock emulator and assembler for Windows and Linux https://code.benbridle.com/bedrock-pc/atom?h=v1.0.0-alpha1 2024-10-28T07:29:12Z 2024-10-28T07:29:12Z Ben Bridle bridle.benjamin@gmail.com 2024-10-28T07:25:01Z urn:sha1:1a830a3d1b9d99653322d5ae49ea8165de7ed9d0 This is a complete rewrite and restructure of the entire emulator project, as part of the effort in locking down the Bedrock specification and in creating much better tooling for creating and using Bedrock programs. This commit adds a command-line argument scheme, an embedded assembler, a headless emulator for use in non-graphical environments, deferred window creation for programs that do not access the screen device, and new versions of phosphor and bedrock-core. The new version of phosphor supports multi-window programs, which will make it possible to implement program forking in the system device later on, and the new version of bedrock-core implements the final core specification. 2024-09-10T00:50:44Z Ben Bridle bridle.benjamin@gmail.com 2024-09-10T00:50:44Z urn:sha1:03c4b069e1806af256730639cefdae115b24401a The mapping of draw codes to draw operations didn't match the screen device specification. This error was introduced in commit 6b3796c. 2024-08-13T05:06:07Z Ben Bridle bridle.benjamin@gmail.com 2024-08-13T05:06:07Z urn:sha1:05326e69658bfcb0e857988bc3ddfa9b2655ec52 The most recently closed directory listing is cached instead of being discarded. The next time a directory is to be opened, if the file path is the same as the cached directory, the cached directory listing is used in order to save the entire listing from having to be regenerated. This is expected to result in performance gains on Windows. 2024-08-11T00:38:13Z Ben Bridle bridle.benjamin@gmail.com 2024-08-11T00:38:13Z urn:sha1:68f633f6ba35a4fbbae9ed22fc759ce3544f6a0e The base variable is only used when compiling on Windows, so an unused variable warning is raised when compiling on Linux. 2024-08-10T02:37:02Z Ben Bridle bridle.benjamin@gmail.com 2024-08-10T02:34:00Z urn:sha1:59820850b2bd326a20306279bdcbe52982a74889 Previously when reading from a ReadOnlyTextBuffer the pointer would fall off the end and crash the emulator. This commit also makes the ReadOnlyTextBuffer Unicode-compatible, rather than the previous behaviour of clamping every character into the ASCII range. 2024-08-10T02:37:02Z Ben Bridle bridle.benjamin@gmail.com 2024-08-10T02:36:42Z urn:sha1:516f5cf5edfb7a2c4a4f3571aa6ce692a476d582 We were finding the parent of the relative path and then passing this to the BedrockFilePath::from_path constructor, but this constructor expects to be passed an absolute path and so was unconditionally returning None. 2024-08-07T05:09:14Z Ben Bridle ben@derelict.engineering 2024-08-07T05:09:14Z urn:sha1:38d40a2c5d4b553f524d87755b8e2e0e47928b8a This is the Windows side of the refactoring job. The windows crate has been added as a dependency in order to get a list of available drives by drive letter, and a virtual top-level root directory has been implemented in the Windows code to make it possible for programs to hierarchically navigate between available drives. 2024-08-06T07:12:43Z Ben Bridle bridle.benjamin@gmail.com 2024-08-06T07:11:46Z urn:sha1:65b53003e8de9543ba25a3b3d3cace399b92dc1d The major feature of this refactor is the creation of BedrockFilePath, a type which can be losslessly converted into an operating-system specific path or a Bedrock-style byte path. It also prevents file paths which can't be represented as Bedrock-style byte paths from being constructed, and allows the use of a base directory which acts as an inescapable sandbox. BedrockFilePath will support the creation of a virtual root directory on Windows which will allow navigation between drive letters via the standard hierarchical navigation ports. This commit has been tested on Linux, but not yet Windows. Further work is expected before the new code will work on Windows. 2024-08-04T01:09:48Z Ben Bridle bridle.benjamin@gmail.com 2024-08-04T01:09:48Z urn:sha1:67d5d2c434db7d6b85d438f263ca51c26715a583 This should have been happening previously, but was missed. 2024-08-04T01:09:04Z Ben Bridle bridle.benjamin@gmail.com 2024-08-04T01:09:04Z urn:sha1:b82ffe72b3f72b8fc5e42464319bab69973c097f Some Windows-only library functions were added in during a previous commit while I was developing on Windows.