📄 os_task.lis
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006C 9701 movw R18,R14
006E 8501 movw R16,R10
0070 0E940000 xcall _OSTaskStkInit
0074 5801 movw R10,R16
0076 .dbline 178
0076 ; err = OS_TCBInit(prio, psp, (OS_STK *)0, 0, 0, (void *)0, 0);
0076 2224 clr R2
0078 3324 clr R3
007A 3B86 std y+11,R3
007C 2A86 std y+10,R2
007E 3986 std y+9,R3
0080 2886 std y+8,R2
0082 40E0 ldi R20,0
0084 50E0 ldi R21,0
0086 60E0 ldi R22,0
0088 70E0 ldi R23,0
008A 4C83 std y+4,R20
008C 5D83 std y+5,R21
008E 6E83 std y+6,R22
0090 7F83 std y+7,R23
0092 3B82 std y+3,R3
0094 2A82 std y+2,R2
0096 3982 std y+1,R3
0098 2882 std y+0,R2
009A 9501 movw R18,R10
009C 0C2D mov R16,R12
009E 0E940000 xcall _OS_TCBInit
00A2 A02E mov R10,R16
00A4 .dbline 179
00A4 ; if (err == OS_NO_ERR) {
00A4 0023 tst R16
00A6 A9F4 brne L8
00A8 .dbline 179
00A8 .dbline 180
00A8 ; OS_ENTER_CRITICAL();
00A8 0A93 st -y,r16
00AA 0FB7 in r16,0x3F
00AC F894 cli
00AE 0F93 push r16
00B0 0991 ld r16,y+
00B2 .dbline 180
00B2 .dbline 181
00B2 ; OSTaskCtr++; /* Increment the #tasks counter */
00B2 80910000 lds R24,_OSTaskCtr
00B6 8F5F subi R24,255 ; addi 1
00B8 80930000 sts _OSTaskCtr,R24
00BC .dbline 182
00BC ; OS_EXIT_CRITICAL();
00BC 0A93 st -y,r16
00BE 0F91 pop r16
00C0 0FBF out 0x3F,r16
00C2 0991 ld r16,y+
00C4 .dbline 182
00C4 .dbline 183
00C4 ; if (OSRunning == TRUE) { /* Find highest priority task if multitasking has started */
00C4 80910000 lds R24,_OSRunning
00C8 8130 cpi R24,1
00CA B9F4 brne L9
00CC .dbline 183
00CC .dbline 184
00CC ; OS_Sched();
00CC 0E940000 xcall _OS_Sched
00D0 .dbline 185
00D0 ; }
00D0 .dbline 186
00D0 14C0 xjmp L9
00D2 L8:
00D2 .dbline 186
00D2 ; } else {
00D2 .dbline 187
00D2 ; OS_ENTER_CRITICAL();
00D2 0A93 st -y,r16
00D4 0FB7 in r16,0x3F
00D6 F894 cli
00D8 0F93 push r16
00DA 0991 ld r16,y+
00DC .dbline 187
00DC .dbline 188
00DC ; OSTCBPrioTbl[prio] = (OS_TCB *)0;/* Make this priority available to others */
00DC 82E0 ldi R24,2
00DE 8C9D mul R24,R12
00E0 F001 movw R30,R0
00E2 80E0 ldi R24,<_OSTCBPrioTbl
00E4 90E0 ldi R25,>_OSTCBPrioTbl
00E6 E80F add R30,R24
00E8 F91F adc R31,R25
00EA 2224 clr R2
00EC 3324 clr R3
00EE 3182 std z+1,R3
00F0 2082 std z+0,R2
00F2 .dbline 189
00F2 ; OS_EXIT_CRITICAL();
00F2 0A93 st -y,r16
00F4 0F91 pop r16
00F6 0FBF out 0x3F,r16
00F8 0991 ld r16,y+
00FA .dbline 189
00FA .dbline 190
00FA ; }
00FA L9:
00FA .dbline 191
00FA ; return (err);
00FA 0A2D mov R16,R10
00FC 05C0 xjmp L3
00FE L6:
00FE .dbline 193
00FE ; }
00FE ; OS_EXIT_CRITICAL();
00FE 0A93 st -y,r16
0100 0F91 pop r16
0102 0FBF out 0x3F,r16
0104 0991 ld r16,y+
0106 .dbline 193
0106 .dbline 194
0106 ; return (OS_PRIO_EXIST);
0106 08E2 ldi R16,40
0108 .dbline -2
0108 L3:
0108 2C96 adiw R28,12
010A 0E940000 xcall pop_gset5
010E .dbline 0 ; func end
010E 0895 ret
0110 .dbsym r psp 10 pc
0110 .dbsym r err 10 c
0110 .dbsym r prio 12 c
0110 .dbsym l ptos 22 pc
0110 .dbsym r pdata 14 pV
0110 .dbsym r task 10 pfV
0110 .dbend
0110 .dbfunc e OSTaskDel _OSTaskDel fc
0110 .dbstruct 0 10 .2
0110 .dbfield 0 OSFlagNodeNext pV
0110 .dbfield 2 OSFlagNodePrev pV
0110 .dbfield 4 OSFlagNodeTCB pV
0110 .dbfield 6 OSFlagNodeFlagGrp pV
0110 .dbfield 8 OSFlagNodeFlags c
0110 .dbfield 9 OSFlagNodeWaitType c
0110 .dbend
0110 .dbstruct 0 18 os_tcb
0110 .dbfield 0 OSTCBStkPtr pc
0110 .dbfield 2 OSTCBNext pS[os_tcb]
0110 .dbfield 4 OSTCBPrev pS[os_tcb]
0110 .dbfield 6 OSTCBFlagNode pS[.2]
0110 .dbfield 8 OSTCBFlagsRdy c
0110 .dbfield 9 OSTCBDly i
0110 .dbfield 11 OSTCBStat c
0110 .dbfield 12 OSTCBPrio c
0110 .dbfield 13 OSTCBX c
0110 .dbfield 14 OSTCBY c
0110 .dbfield 15 OSTCBBitX c
0110 .dbfield 16 OSTCBBitY c
0110 .dbfield 17 OSTCBDelReq c
0110 .dbend
0110 ; self -> <dead>
0110 ; pnode -> R10,R11
0110 ; ptcb -> R20,R21
0110 ; prio -> R22
.even
0110 _OSTaskDel::
0110 0E940000 xcall push_gset3
0114 602F mov R22,R16
0116 .dbline -1
0116 .dbline 358
0116 ; }
0116 ; #endif
0116 ; /*$PAGE*/
0116 ; /*
0116 ; *********************************************************************************************************
0116 ; * CREATE A TASK (Extended Version)
0116 ; *
0116 ; * Description: This function is used to have uC/OS-II manage the execution of a task. Tasks can either
0116 ; * be created prior to the start of multitasking or by a running task. A task cannot be
0116 ; * created by an ISR. This function is similar to OSTaskCreate() except that it allows
0116 ; * additional information about a task to be specified.
0116 ; *
0116 ; * Arguments : task is a pointer to the task's code
0116 ; *
0116 ; * pdata is a pointer to an optional data area which can be used to pass parameters to
0116 ; * the task when the task first executes. Where the task is concerned it thinks
0116 ; * it was invoked and passed the argument 'pdata' as follows:
0116 ; *
0116 ; * void Task (void *pdata)
0116 ; * {
0116 ; * for (;;) {
0116 ; * Task code;
0116 ; * }
0116 ; * }
0116 ; *
0116 ; * ptos is a pointer to the task's top of stack. If the configuration constant
0116 ; * OS_STK_GROWTH is set to 1, the stack is assumed to grow downward (i.e. from high
0116 ; * memory to low memory). 'pstk' will thus point to the highest (valid) memory
0116 ; * location of the stack. If OS_STK_GROWTH is set to 0, 'pstk' will point to the
0116 ; * lowest memory location of the stack and the stack will grow with increasing
0116 ; * memory locations. 'pstk' MUST point to a valid 'free' data item.
0116 ; *
0116 ; * prio is the task's priority. A unique priority MUST be assigned to each task and the
0116 ; * lower the number, the higher the priority.
0116 ; *
0116 ; * id is the task's ID (0..65535)
0116 ; *
0116 ; * pbos is a pointer to the task's bottom of stack. If the configuration constant
0116 ; * OS_STK_GROWTH is set to 1, the stack is assumed to grow downward (i.e. from high
0116 ; * memory to low memory). 'pbos' will thus point to the LOWEST (valid) memory
0116 ; * location of the stack. If OS_STK_GROWTH is set to 0, 'pbos' will point to the
0116 ; * HIGHEST memory location of the stack and the stack will grow with increasing
0116 ; * memory locations. 'pbos' MUST point to a valid 'free' data item.
0116 ; *
0116 ; * stk_size is the size of the stack in number of elements. If OS_STK is set to INT8U,
0116 ; * 'stk_size' corresponds to the number of bytes available. If OS_STK is set to
0116 ; * INT16U, 'stk_size' contains the number of 16-bit entries available. Finally, if
0116 ; * OS_STK is set to INT32U, 'stk_size' contains the number of 32-bit entries
0116 ; * available on the stack.
0116 ; *
0116 ; * pext is a pointer to a user supplied memory location which is used as a TCB extension.
0116 ; * For example, this user memory can hold the contents of floating-point registers
0116 ; * during a context switch, the time each task takes to execute, the number of times
0116 ; * the task has been switched-in, etc.
0116 ; *
0116 ; * opt contains additional information (or options) about the behavior of the task. The
0116 ; * LOWER 8-bits are reserved by uC/OS-II while the upper 8 bits can be application
0116 ; * specific. See OS_TASK_OPT_??? in uCOS-II.H.
0116 ; *
0116 ; * Returns : OS_NO_ERR if the function was successful.
0116 ; * OS_PRIO_EXIT if the task priority already exist
0116 ; * (each task MUST have a unique priority).
0116 ; * OS_PRIO_INVALID if the priority you specify is higher that the maximum allowed
0116 ; * (i.e. > OS_LOWEST_PRIO)
0116 ; *********************************************************************************************************
0116 ; */
0116 ; /*$PAGE*/
0116 ; #if OS_TASK_CREATE_EXT_EN > 0
0116 ; INT8U OSTaskCreateExt (void (*task)(void *pd),
0116 ; void *pdata,
0116 ; OS_STK *ptos,
0116 ; INT8U prio,
0116 ; INT16U id,
0116 ; OS_STK *pbos,
0116 ; INT32U stk_size,
0116 ; void *pext,
0116 ; INT16U opt)
0116 ; {
0116 ; #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
0116 ; OS_CPU_SR cpu_sr;
0116 ; #endif
0116 ; OS_STK *psp;
0116 ; INT8U err;
0116 ;
0116 ;
0116 ; #if OS_ARG_CHK_EN > 0
0116 ; if (prio > OS_LOWEST_PRIO) { /* Make sure priority is within allowable range */
0116 ; return (OS_PRIO_INVALID);
0116 ; }
0116 ; #endif
0116 ; OS_ENTER_CRITICAL();
0116 ; if (OSTCBPrioTbl[prio] == (OS_TCB *)0) { /* Make sure task doesn't already exist at this priority */
0116 ; OSTCBPrioTbl[prio] = (OS_TCB *)1; /* Reserve the priority to prevent others from doing ... */
0116 ; /* ... the same thing until task is created. */
0116 ; OS_EXIT_CRITICAL();
0116 ;
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