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https://git.planet-casio.com/Lephenixnoir/gint.git
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4485e7f865
* Add the gint_switch() function which executes user-provided code from the system (CASIOWIN) context. * Added interrupt masks to the core context (should have been there long ago). * Added the gint_osmenu() function that switches out of gint to invoke GetKeyWait() and inject KEY_CTRL_MENU to trigger the main menu. This uses many CASIOWIN syscalls, but we don't care because gint is unloaded. Trickery is used to catch the key following the return in the add-in and/or display a new application frame before GetKeyWait() even finishes after coming back. This is only available on fx9860g for now. * Removed any public syscall definition to clear up interfaces. * Patched the DMA interruption problem in a weird way on fxcg50, a driver function will be used to do that properly eventually. * Changed the driver model to save driver contexts in preallocated spaces instead of on the stack for overall less risk. * Enabled return-to-menu with the MENU key on fx9860g in getkey(). * Changed the keyboard driver to emit releases before presses, as a return-to-menu acts as a press+release of different keys in a single driver frame, which confuses getkey(). * Fixed a really stupid bug in memcpy() that made the function really not work. Improvements in the timer driver: * Expose ETMU modules as SH7705_TMU and SH7305_TMU in <gint/mpu/tmu.h>. * Remove the timer_t structures, using SH*_ETMU and SH*_TMU instead. Only interrupt gate entries are left hardcoded. * Discovered that not only every write to the TCNT or TCR of an ETMU takes about 1/32k of a second (hinting at registers being powered by the same clock as the timer), but every write occuring while a previous write is pending is *lost*. This led to terrible bugs when switching ETMU contexts too fast in gint_switch(). * Removed an internal timer_address() function. * Overall simplified the handling of timers and the initialization step.
55 lines
2.4 KiB
Text
55 lines
2.4 KiB
Text
Crucial, missing things.
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! core: the four basic memory functions
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! core: gint_switch() with driver contexts on stack and arbitrary code
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! core: use gint_switch() to handle TLB misses
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! core: return to menu on fxcg50
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! bopti: fxcg50 version
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! syscalls: fxcg50 BFile calls
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Tests to run.
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* core: run the alignment/size automated tests for memory functions
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Issues.
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* #3 make drawing functions parameterized
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* #5 add decent random number generation (TinyMT)
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* #8 support fx-CG Manager
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* #10 support fx-CG 20
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Complementary elements on existing code.
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* gray: double-buffer gray settings and unify d* with g*
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* display: deprecate image_t and rename it bopti_image_t
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* make fx9860g projects work out of the box on fxcg50
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* topti: support unicode fonts
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* gray: find good values for more models than the Graph 35+E II
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* dma: maybe relax the 4-byte size constraint for dma_memset()
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* dma: fx9860g support (need to switch it on)
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* core: try to leave add-in without reset in case of panic
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* hardware: fill in the HWMEM_FITTLB flag
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* keyboard: think of extended functions
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* cpg: spread spectrum on fxcg50
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* display: use more of topti's assembler in drect()
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* core: use cmp/str for memchr()
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* timer: try putting addresses in <gint/mpu/tmu.h>
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* r61524: brightness control and clean the file
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* t6k11: check if dupdate() can be done by the DMA
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Keep in mind.
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* build: make the build system simpler (two targets are enough by default)
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* core: run destructors when a task-switch results in leaving the app
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* core: invoke main menu instead of returning after main() ends
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* prizm: don't hardcode stack address in fxcg50.ld
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* prizm: detect P1 static RAM (stack) in TLB
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* core rtc: use qdiv10 to massively improve division performance
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* setjmp: more registers may need to be saved
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* core: free heap when a task-switch results in leaving the app
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* core: save and restore interrupt masks
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* timer: make sure ETMU interrupts are disabled in ctx_restore()
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* timer: look for ways to improve the code again
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* core: document the SH7305 PFC in <gint/mpu/pfc.h>
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Future directions.
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* A complete file system abstraction
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* Integrate overclock management
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* Audio playback using Martin Poupe's method
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* Serial communication [SCIF] [SCIFA]
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* USB communication [USB]
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