X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fcore%2Fao_task.c;h=41520476fb6d806f722dfe57339db076ef3b5078;hp=f5850fa4c15bab07b88fcd6c4a191ffd33323762;hb=e9fab7dc99a0e7c22b511c5919adf7df85213252;hpb=9513be7f9d3d0b0ec29f6487fa9dc8f1ac24d0de diff --git a/src/core/ao_task.c b/src/core/ao_task.c index f5850fa4..41520476 100644 --- a/src/core/ao_task.c +++ b/src/core/ao_task.c @@ -27,7 +27,6 @@ __xdata struct ao_task *__data ao_cur_task; void ao_add_task(__xdata struct ao_task * task, void (*start)(void), __code char *name) __reentrant { - uint8_t __xdata *stack; uint8_t task_id; uint8_t t; if (ao_num_tasks == AO_NUM_TASKS) @@ -42,70 +41,19 @@ ao_add_task(__xdata struct ao_task * task, void (*start)(void), __code char *nam ao_tasks[ao_num_tasks++] = task; task->task_id = task_id; task->name = name; + task->wchan = NULL; /* * Construct a stack frame so that it will 'return' * to the start of the task */ - stack = task->stack; - - *stack++ = ((uint16_t) start); /* 0 */ - *stack++ = ((uint16_t) start) >> 8; /* 1 */ - - /* and the stuff saved by ao_switch */ - *stack++ = 0; /* 2 acc */ - *stack++ = 0x80; /* 3 IE */ - - /* 4 DPL - * 5 DPH - * 6 B - * 7 R2 - * 8 R3 - * 9 R4 - * 10 R5 - * 11 R6 - * 12 R7 - * 13 R0 - * 14 R1 - * 15 PSW - * 16 BP - */ - for (t = 0; t < 13; t++) - *stack++ = 0; - - task->stack_count = 17; - task->wchan = NULL; + ao_arch_init_stack(task, start); } /* Task switching function. This must not use any stack variables */ void -ao_yield(void) __naked +ao_yield(void) ao_arch_naked_define { - - /* Save current context */ - _asm - /* Push ACC first, as when restoring the context it must be restored - * last (it is used to set the IE register). */ - push ACC - /* Store the IE register then enable interrupts. */ - push _IEN0 - setb _EA - push DPL - push DPH - push b - push ar2 - push ar3 - push ar4 - push ar5 - push ar6 - push ar7 - push ar0 - push ar1 - push PSW - _endasm; - PSW = 0; - _asm - push _bp - _endasm; + ao_arch_save_context(); if (ao_cur_task_index == AO_NO_TASK_INDEX) ao_cur_task_index = ao_num_tasks-1;