bedrock-nds/arm9/source/devices, branch main Bedrock emulator for the Nintendo DS https://code.benbridle.com/bedrock-nds/atom?h=main 2025-09-19T01:32:32Z Massive rewrite 2025-09-19T01:32:32Z Ben Bridle ben@derelict.engineering 2025-09-19T01:17:14Z urn:sha1:bb1aa5958d1b67707dcf0f6b08bfaf0b408bd46e This commit rewrites the emulator halfway from scratch to make it easier to change and maintain in the future. The emulator core was rewritten to adhere to the released Bedrock specification (earlier versions implemented an older prototype specification, which is no longer relevant). This commit also adds proper support for running multiple concurrent Bedrock instances. This was previously supported in a limited manner for the on-screen keyboard, but now works for any regular program as well, with switching being performed by pressing the L or R bumper buttons. This is disabled by default, as programs will still need to be baked into the emulator and hand-loaded. Create intermediate parent directories when creating a new file 2024-12-16T05:09:46Z Ben Bridle ben@derelict.engineering 2024-12-16T05:09:46Z urn:sha1:9612c307f00c4313d73fe0c3a86c05c8d8cd514e Hide the . and .. directories in file device 2024-12-16T03:30:06Z Ben Bridle ben@derelict.engineering 2024-12-16T03:30:06Z urn:sha1:3533aced8b3fc4d6c1ec22c35f805ae966d8a7cb The file device shows the special directories . and .. in every directory but the root directory. To hide these, in non-root directories, we reduce the reported number of child entries by 2, and when selecting a child entry we increment the pointer by 2. Implement a toggleable keyboard on the lower screen 2024-12-16T01:52:54Z Ben Bridle ben@derelict.engineering 2024-12-16T01:52:54Z urn:sha1:0d9978228b9226d16ba8272a03dd7e6c9ad83b3d Fix overflow error in line drawing function 2024-12-16T01:51:10Z Ben Bridle ben@derelict.engineering 2024-12-16T01:51:00Z urn:sha1:dbe8171815ea3b51c3ac87dae1996ae0d8f6eb04 Drawing a line with length of 0x4000 or greater was never terminating. Prevent null pointer errors 2024-12-16T01:49:56Z Ben Bridle ben@derelict.engineering 2024-12-16T01:49:22Z urn:sha1:f98e8576cc844e7be676ac653266e21ef54873d5 Many functions which used the scr->nds pointer were not first checking that the pointer was not null. Update palette only when screen buffers flip 2024-11-22T03:15:11Z Ben Bridle ben@derelict.engineering 2024-11-22T03:04:02Z urn:sha1:a05dc964313a3f1431b9d08d33afb4daf45c0819 Previously, any palette updates would be immediately visible, but any screen updates would draw to the back buffer and would only become visible when the back buffer was copied to the front buffer. This could result in a flash of a new palette before the new screen had a chance to draw and become visible. To prevent this, a second palette was created to receive palette updates, with the updates only being copied to the visible palette when the screen buffers flip. Implement file device 2024-11-22T03:15:11Z Ben Bridle ben@derelict.engineering 2024-11-22T03:04:20Z urn:sha1:4f8805869c469cb1b3685e03c3ea34d7654b5cb7 There is still a small amount of work to be done on the file device: - Read file size only when requested - Hide '.' and '..' directories - Resize files Implement name and author ports in system device 2024-11-22T03:07:48Z Ben Bridle ben@derelict.engineering 2024-11-22T03:04:33Z urn:sha1:fcbc3968bd95e4d19b37d9fa4bca51b1db8596ff Simplify clock device implementation 2024-11-22T03:07:48Z Ben Bridle ben@derelict.engineering 2024-11-22T03:01:31Z urn:sha1:e05888d141bc64e92d81859af0d87627e6fbc477 Two pairs of generic get/set functions now do the role of the previous pair of custom get/set functions for each timer.