📄 os_core.s
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.module OS_CORE.C
.area lit(rom, con, rel)
_OSMapTbl::
.byte 1,2
.byte 4,8
.byte 16,32
.byte 64,128
.dbfile G:\IccPro\ucos_m8_icc\source\OS_CORE.C
.dbsym e OSMapTbl _OSMapTbl A[8:8]kc
_OSUnMapTbl::
.byte 0,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 5,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 6,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 5,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 7,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 5,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 6,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 5,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 4,0
.byte 1,0
.byte 2,0
.byte 1,0
.byte 3,0
.byte 1,0
.byte 2,0
.byte 1,0
.dbsym e OSUnMapTbl _OSUnMapTbl A[256:256]kc
.area text(rom, con, rel)
.dbfile G:\IccPro\ucos_m8_icc\source\OS_CORE.C
.dbfunc e OSInit _OSInit fV
; i -> R10,R11
.even
_OSInit::
rcall push_gset3x
sbiw R28,3
.dbline -1
.dbline 77
;
; #ifndef OS_MASTER_FILE
; #define OS_GLOBALS
; #include "includes.h"
; #endif
;
; /*
; *********************************************************************************************************
; * LOCAL GLOBAL VARIABLES
; *********************************************************************************************************
; */
;
; static INT8U OSIntExitY; /* Variable used by 'OSIntExit' to prevent using locals */
; static OS_STK OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE]; /* Idle task stack */
;
; #if OS_TASK_STAT_EN
; static OS_STK OSTaskStatStk[OS_TASK_STAT_STK_SIZE]; /* Statistics task stack */
; #endif
;
; static OS_TCB OSTCBTbl[OS_MAX_TASKS + OS_N_SYS_TASKS]; /* Table of TCBs */
;
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * MAPPING TABLE TO MAP BIT POSITION TO BIT MASK
; *
; * Note: Index into table is desired bit position, 0..7
; * Indexed value corresponds to bit mask
; *********************************************************************************************************
; */
;
; INT8U const OSMapTbl[] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80};
;
; /*
; *********************************************************************************************************
; * PRIORITY RESOLUTION TABLE
; *
; * Note: Index into table is bit pattern to resolve highest priority
; * Indexed value corresponds to highest priority bit position (i.e. 0..7)
; *********************************************************************************************************
; */
;
; INT8U const OSUnMapTbl[] = {
; 0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
; };
;
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * INITIALIZATION
; *
; * Description: This function is used to initialize the internals of uC/OS-II and MUST be called prior to
; * creating any uC/OS-II object and, prior to calling OSStart().
; *
; * Arguments : none
; *
; * Returns : none
; *********************************************************************************************************
; */
;
; void OSInit (void)
; {
.dbline 81
; INT16U i;
;
;
; OSTime = 0L; /* Clear the 32-bit system clock */
ldi R24,0
ldi R25,0
ldi R26,0
ldi R27,0
sts _OSTime+1,R25
sts _OSTime,R24
sts _OSTime+2+1,R27
sts _OSTime+2,R26
.dbline 82
; OSIntNesting = 0; /* Clear the interrupt nesting counter */
clr R2
sts _OSIntNesting,R2
.dbline 83
; OSLockNesting = 0; /* Clear the scheduling lock counter */
sts _OSLockNesting,R2
.dbline 85
; #if OS_TASK_CREATE_EN || OS_TASK_CREATE_EXT_EN || OS_TASK_DEL_EN
; OSTaskCtr = 0; /* Clear the number of tasks */
sts _OSTaskCtr,R2
.dbline 87
; #endif
; OSRunning = FALSE; /* Indicate that multitasking not started */
sts _OSRunning,R2
.dbline 88
; OSIdleCtr = 0L; /* Clear the 32-bit idle counter */
ldi R24,0
ldi R25,0
ldi R26,0
ldi R27,0
sts _OSIdleCtr+1,R25
sts _OSIdleCtr,R24
sts _OSIdleCtr+2+1,R27
sts _OSIdleCtr+2,R26
.dbline 90
;
; OSCtxSwCtr = 0; /* Clear the context switch counter */
ldi R24,0
ldi R25,0
ldi R26,0
ldi R27,0
sts _OSCtxSwCtr+1,R25
sts _OSCtxSwCtr,R24
sts _OSCtxSwCtr+2+1,R27
sts _OSCtxSwCtr+2,R26
.dbline 91
; OSRdyGrp = 0; /* Clear the ready list */
sts _OSRdyGrp,R2
.dbline 92
clr R10
clr R11
rjmp L6
L3:
.dbline 92
.dbline 93
ldi R24,<_OSRdyTbl
ldi R25,>_OSRdyTbl
movw R30,R10
add R30,R24
adc R31,R25
clr R2
std z+0,R2
.dbline 94
L4:
.dbline 92
movw R24,R10
adiw R24,1
movw R10,R24
L6:
.dbline 92
; for (i = 0; i < OS_RDY_TBL_SIZE; i++) {
movw R24,R10
cpi R24,2
ldi R30,0
cpc R25,R30
brlo L3
.dbline 96
; OSRdyTbl[i] = 0;
; }
;
; OSPrioCur = 0;
clr R2
sts _OSPrioCur,R2
.dbline 97
; OSPrioHighRdy = 0;
sts _OSPrioHighRdy,R2
.dbline 98
; OSTCBHighRdy = (OS_TCB *)0; /* TCB Initialization */
clr R3
sts _OSTCBHighRdy+1,R3
sts _OSTCBHighRdy,R2
.dbline 99
; OSTCBCur = (OS_TCB *)0;
sts _OSTCBCur+1,R3
sts _OSTCBCur,R2
.dbline 100
; OSTCBList = (OS_TCB *)0;
sts _OSTCBList+1,R3
sts _OSTCBList,R2
.dbline 101
clr R10
clr R11
rjmp L10
L7:
.dbline 101
.dbline 102
ldi R16,2
ldi R17,0
movw R18,R10
rcall empy16s
movw R30,R16
ldi R24,<_OSTCBPrioTbl
ldi R25,>_OSTCBPrioTbl
add R30,R24
adc R31,R25
clr R2
clr R3
std z+1,R3
std z+0,R2
.dbline 103
L8:
.dbline 101
movw R24,R10
adiw R24,1
movw R10,R24
L10:
.dbline 101
; for (i = 0; i < (OS_LOWEST_PRIO + 1); i++) { /* Clear the priority table */
movw R24,R10
cpi R24,16
ldi R30,0
cpc R25,R30
brlo L7
.dbline 104
clr R10
clr R11
rjmp L14
L11:
.dbline 104
.dbline 105
movw R18,R10
subi R18,255 ; offset = 1
sbci R19,255
ldi R16,14
ldi R17,0
rcall empy16s
movw R2,R16
ldi R24,<_OSTCBTbl
ldi R25,>_OSTCBTbl
add R2,R24
adc R3,R25
ldi R16,14
ldi R17,0
movw R18,R10
rcall empy16s
movw R30,R16
ldi R24,<_OSTCBTbl+2
ldi R25,>_OSTCBTbl+2
add R30,R24
adc R31,R25
std z+1,R3
std z+0,R2
.dbline 106
L12:
.dbline 104
movw R24,R10
adiw R24,1
movw R10,R24
L14:
.dbline 104
; OSTCBPrioTbl[i] = (OS_TCB *)0;
; }
; for (i = 0; i < (OS_MAX_TASKS + OS_N_SYS_TASKS - 1); i++) { /* Init. list of free TCBs */
movw R24,R10
cpi R24,5
ldi R30,0
cpc R25,R30
brlo L11
.dbline 107
; OSTCBTbl[i].OSTCBNext = &OSTCBTbl[i + 1];
; }
; OSTCBTbl[OS_MAX_TASKS + OS_N_SYS_TASKS - 1].OSTCBNext = (OS_TCB *)0; /* Last OS_TCB */
clr R2
clr R3
sts _OSTCBTbl+70+2+1,R3
sts _OSTCBTbl+70+2,R2
.dbline 108
; OSTCBFreeList = &OSTCBTbl[0];
ldi R24,<_OSTCBTbl
ldi R25,>_OSTCBTbl
sts _OSTCBFreeList+1,R25
sts _OSTCBFreeList,R24
.dbline 111
clr R10
clr R11
rjmp L21
L18:
.dbline 111
.dbline 112
movw R18,R10
subi R18,255 ; offset = 1
sbci R19,255
ldi R16,8
ldi R17,0
rcall empy16s
movw R2,R16
ldi R24,<_OSEventTbl
ldi R25,>_OSEventTbl
add R2,R24
adc R3,R25
ldi R16,8
ldi R17,0
movw R18,R10
rcall empy16s
movw R30,R16
ldi R24,<_OSEventTbl
ldi R25,>_OSEventTbl
add R30,R24
adc R31,R25
std z+1,R3
std z+0,R2
.dbline 113
L19:
.dbline 111
movw R24,R10
adiw R24,1
movw R10,R24
L21:
.dbline 111
;
; #if OS_MAX_EVENTS >= 2
; for (i = 0; i < (OS_MAX_EVENTS - 1); i++) { /* Init. list of free EVENT control blocks */
movw R24,R10
cpi R24,1
ldi R30,0
cpc R25,R30
brlo L18
.dbline 114
; OSEventTbl[i].OSEventPtr = (OS_EVENT *)&OSEventTbl[i + 1];
; }
; OSEventTbl[OS_MAX_EVENTS - 1].OSEventPtr = (OS_EVENT *)0;
clr R2
clr R3
sts _OSEventTbl+8+1,R3
sts _OSEventTbl+8,R2
.dbline 115
; OSEventFreeList = &OSEventTbl[0];
ldi R24,<_OSEventTbl
ldi R25,>_OSEventTbl
sts _OSEventFreeList+1,R25
sts _OSEventFreeList,R24
.dbline 119
; #endif
;
; #if OS_STK_GROWTH == 1
; OSTaskCreate(OSTaskIdle, (void *)0, &OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE - 1], OS_IDLE_PRIO);
ldi R24,15
std y+2,R24
ldi R24,<_OSTaskIdleStk+99
ldi R25,>_OSTaskIdleStk+99
std y+1,R25
std y+0,R24
clr R18
clr R19
ldi R16,<PL_OSTaskIdle
ldi R17,>PL_OSTaskIdle
rcall _OSTaskCreate
.dbline -2
L2:
adiw R28,3
rcall pop_gset3x
.dbline 0 ; func end
ret
.dbsym r i 10 i
.dbend
.dbfunc e OSIntExit _OSIntExit fV
.even
_OSIntExit::
.dbline -1
.dbline 146
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