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bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
Extensions on existing code:
fs: folder support, part 1 (mkdir/rmdir and the opendir(3) family)
2021-12-21 19:01:00 +01:00
* usb: add PC->calc reading, and interrupt pipes
* fs: support RAM files
* fs: support USB streams as generic file descriptors
* fugue: support glob() and stat() to abstract away BFile entirely
(typos and TODOs)
2021-04-20 12:19:24 +02:00
* bfile: implement the optimization-restart as realized by Kbd2
kernel: move VBR at the end of the user RAM area on fx-9860G This leaves more space available for the heap.
2021-02-15 09:39:14 +01:00
* kernel: better restore to userspace before panic (ensure BL=0 IMASK=0)
small cleanup
2020-10-05 16:20:01 +02:00
* project: add license file
kernel: dynamic loading of GMAPPED functions to user RAM This commit introduces a large architectural change. Unlike previous models of the fx-9860G series, the G-III models have a new user RAM address different from 8801c000. The purpose of this change is to dynamically load GMAPPED functions to this address by querying the TLB, and call them through a function pointer whose address is determined when loading. Because of the overhead of using a function pointer in both assembly and C code, changes have been made to avoid GMAPPED functions altogether. Current, only cpu_setVBR() and gint_inth_callback() are left, the second being used specifically to enable TLB misses when needed. * Add a .gint.mappedrel section for the function pointers holding addresses to GMAPPED functions; add function pointers for cpu_setVBR() and gint_inth_callback() * Move rram to address 0 instead of the hardcoded 0x8801c000 * Load GMAPPED functions at their linked address + the physical address user RAM is mapped, to and compute their function pointers * Remove the GMAPPED macro since no user function needs it anymore * Add section flags "ax" (code) or "aw" (data) to every custom .section in assembler code, as they default to unpredictable values that can cause the section to be marked NOLOAD by the linker * Update the main kernel, TMU, ETMU and RTC interrupt handlers to use the new indirect calling method This is made possible by new MMU functions giving direct access to the physical area behind any virtualized page. * Add an mmu_translate() function to query the TLB * Add an mmu_uram() function to access user RAM from P1 The exception catching mechanism has been modified to avoid the use of GMAPPED functions altogether. * Set SR.BL=0 and SR.IMASK=15 before calling exception catchers * Move gint_exc_skip() to normal text ROM * Also fix registers not being popped off the stack before a panic The timer drivers have also been modified to avoid GMAPPED functions. * Invoke timer_stop() through gint_inth_callback() and move it to ROM * Move and expand the ETMU driver to span 3 blocks at 0xd00 (ETMU4) * Remove the timer_clear() function by inlining it into the ETMU handler (TCR is provided within the storage block of each timer) * Also split src/timer/inth.s into src/timer/inth-{tmu,etmu}.s Additionally, VBR addresses are now determined at runtime to further reduce hardcoded memory layout addresses in the linker script. * Determine fx-9860G VBR addresses dynamically from mmu_uram() * Determine fx-CG 50 VBR addresses dynamically from mmu_uram() * Remove linker symbols for VBR addresses Comments and documentation have been updated throughout the code to reflect the changes.
2020-09-17 14:48:54 +02:00
* kernel: group linker script symbols in a single header file
small improvements * Update TOTO list * Change the type of gint_vbr to comply with a new warning in GCC 9 * Add strcmp()
2019-09-19 15:59:38 +02:00
* core: try to leave add-in without reset in case of panic
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
* core: use cmp/str for memchr()
TODO update and miscellaneous style
2019-07-17 00:34:10 +02:00
* r61524: brightness control and clean the file
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
* core: review forgotten globals and MPU addresses not in <gint/mpu/*.h>
gray: add engine, basic drawing and text This revision includes the base gray engine with sensible starting defaults, gclear() and grect(), as well as gtext().
2019-07-20 18:31:46 +02:00
* core: run destructors when a task-switch results in leaving the app
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
fs: folder support, part 1 (mkdir/rmdir and the opendir(3) family)
2021-12-21 19:01:00 +01:00
Future directions:
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
* Integrate overclock management
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
* Audio playback using TSWilliamson's libsnd method
* Serial communication
drivers: update the model, replacing unload() with wait() The unload() function is not very relevant for drivers because hardware state is managed by ctx_save() and ctx_restore() and software state is managed by underlying drivers when there are dependencies. For now, it's been replaced with a wait() function that allows drivers to not be interrupted at any point. It is currently used by the DMA to wait for ongoing transfers to finish before disabling interrupts (which would prevent the transfer end from being detected) and switching in and out of gint.
2020-05-10 16:36:21 +02:00
* Make fx9860g projects work out of the box on fxcg50
core: accept large add-ins and setup TLB management (UNSTABLE) This change modifies the fx-CG 50 linker script to allow add-ins up to 2M and no longer complains about add-ins that don't fit in the TLB. It also exposes the __TLB_LoadPTEH() syscall (%003 on fx9860g, %00c on fxcg50) that answers TLB misses. This syscall can be called manually from an add-in to load some pages and seems to work without problem. However, this version does not provide any automatic TLB management, some key areas of the kernel are still under TLB and some user code (such as timer callbacks) is not! This version is suitable only for add-ins smaller than 220k!
2020-06-14 11:01:27 +02:00
* Use the DSP to enhance parallel computation
kernel: fix gint[HWURAM] not being set on fx-9860G When switching to dynamic TLB the counting of mapped memory was no longer required at boot time. This was restored weirdly for fx-CG 50 and not at all for fx-9860G; this is now fixed.
2021-01-31 15:11:13 +01:00
* Base for Yatis' threads library
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