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Try minimalistic cooperative scheduler
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2024. | ||
| // Distributed under The Unlicense | ||
| // | ||
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| void app_acc_init(void) | ||
| { | ||
| } | ||
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| void app_acc_task(void) | ||
| { | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2024. | ||
| // Distributed under The Unlicense | ||
| // | ||
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| #include <mcal/mcal_gpt.h> | ||
| #include <os/os.h> | ||
| #include <startup/asm_util.h> | ||
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| void main(void) | ||
| { | ||
| mcal_gpt_init(); | ||
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| os_init(); | ||
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| os_schedule(); | ||
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| mcal_gpt_de_init(); | ||
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| // Exit the Application and return to the home screen | ||
| // using the JForceCmdNoChar function. See also page 16 | ||
| // in "TI-83 Plus System Routines", Third Release, | ||
| // (Jan. 25, 2002). | ||
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| __asm__("rst 0x28\n" ".dw #0x4027\n"); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2024. | ||
| // Distributed under The Unlicense | ||
| // | ||
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| #include <stdbool.h> | ||
| #include <stddef.h> | ||
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| #include <mcal/mcal_gpt.h> | ||
| #include <os/os.h> | ||
| #include <startup/asm_util.h> | ||
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| #define OS_COUNTOF(a) (size_t) (sizeof(a) / sizeof(a[(size_t) 0U])) | ||
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| #define OS_TIMER_TIMEOUT(T) (bool) (((uint8_t) ((uint8_t) (mcal_gpt_get_time_elapsed() - (T)) & (uint8_t) UINT8_C(0x80)) == (uint8_t) UINT8_C(0)) ? true : false) | ||
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| extern void app_led_init(void); | ||
| extern void app_led_task(void); | ||
| extern void app_acc_init(void); | ||
| extern void app_acc_task(void); | ||
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| static bool os_wants_exit(void) ATTRIBUTE_NAKED; | ||
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| static os_task_control_block os_task_list[2U] = | ||
| { | ||
| { app_led_init, app_led_task, (uint8_t) UINT8_C(1), (uint8_t) UINT8_C(0) }, | ||
| { app_acc_init, app_acc_task, (uint8_t) UINT8_C(7), (uint8_t) UINT8_C(0) } | ||
| }; | ||
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| void os_init(void) | ||
| { | ||
| for(uint8_t task_index = (uint8_t) UINT8_C(0); task_index < (uint8_t) OS_COUNTOF(os_task_list); ++task_index) | ||
| { | ||
| os_task_list[task_index].p_init(); | ||
| } | ||
| } | ||
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| void os_schedule(void) | ||
| { | ||
| while(!os_wants_exit()) | ||
| { | ||
| for(uint8_t task_index = (uint8_t) UINT8_C(0); task_index < (uint8_t) OS_COUNTOF(os_task_list); ++task_index) | ||
| { | ||
| if(OS_TIMER_TIMEOUT(os_task_list[task_index].timer)) | ||
| { | ||
| os_task_list[task_index].p_func(); | ||
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| os_task_list[task_index].timer += os_task_list[task_index].cycle; | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| static bool os_wants_exit(void) ATTRIBUTE_NAKED | ||
| { | ||
| __asm__("rst 0x28\n" ".dw #0x4018\n"); | ||
| __asm__("ld h, #0x0\n"); | ||
| __asm__("cp #0x9\n"); | ||
| __asm__("jp nz, no_exit\n"); | ||
| __asm__("ld h, #0x1\n"); | ||
| __asm__("no_exit:\n"); | ||
| __asm__("ret\n"); | ||
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| #if defined(_MSC_VER) | ||
| return false; | ||
| #endif | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // Copyright Christopher Kormanyos 2024. | ||
| // Distributed under The Unlicense | ||
| // | ||
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| #ifndef OS_2024_01_09_H | ||
| #define OS_2024_01_09_H | ||
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| #include <stdint.h> | ||
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| typedef void(*os_function_type)(void); | ||
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| typedef struct os_task_control_block | ||
| { | ||
| os_function_type p_init; | ||
| os_function_type p_func; | ||
| uint8_t cycle; | ||
| uint8_t timer; | ||
| } | ||
| os_task_control_block; | ||
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| void os_init (void); | ||
| void os_schedule(void); | ||
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| #endif // OS_2024_01_09_H |
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