?? os_core.src
字號(hào):
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 004H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 007H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 004H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 005H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 004H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 006H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 004H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 005H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 004H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
DB 003H
DB 000H
DB 001H
DB 000H
DB 002H
DB 000H
DB 001H
DB 000H
; /*
; *********************************************************************************************************
; * uC/OS-II
; * The Real-Time Kernel
; * CORE FUNCTIONS
; *
; * (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
; * All Rights Reserved
; *
; * File : OS_CORE.C
; * By : Jean J. Labrosse
; *********************************************************************************************************
; */
;
; #ifndef OS_MASTER_FILE
; #define OS_GLOBALS
; #include "includes.h"
; #endif
;
; /*
; *********************************************************************************************************
; * 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[8] = {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[256] = {
; 0, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x00 to 0x0F */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x10 to 0x1F */
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x20 to 0x2F */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x30 to 0x3F */
; 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x40 to 0x4F */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x50 to 0x5F */
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x60 to 0x6F */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x70 to 0x7F */
; 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x80 to 0x8F */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0x90 to 0x9F */
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xA0 to 0xAF */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xB0 to 0xBF */
; 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xC0 to 0xCF */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xD0 to 0xDF */
; 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, /* 0xE0 to 0xEF */
; 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0 /* 0xF0 to 0xFF */
; };
;
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * FUNCTION PROTOTYPES
; *********************************************************************************************************
; */
; static void OS_InitEventList(void);
; static void OS_InitMisc(void);
; static void OS_InitRdyList(void);
; static void OS_InitTaskIdle(void);
; #if OS_TASK_STAT_EN > 0
; static void OS_InitTaskStat(void);
; #endif
; static void OS_InitTCBList(void);
;
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * GET THE NAME OF A SEMAPHORE, MUTEX, MAILBOX or QUEUE
; *
; * Description: This function is used to obtain the name assigned to a semaphore, mutex, mailbox or queue.
; *
; * Arguments : pevent is a pointer to the event group. 'pevent' can point either to a semaphore,
; * a mutex, a mailbox or a queue. Where this function is concerned, the actual
; * type is irrelevant.
; *
; * pname is a pointer to an ASCII string that will receive the name of the semaphore,
; * mutex, mailbox or queue. The string must be able to hold at least
; * OS_EVENT_NAME_SIZE characters.
; *
; * err is a pointer to an error code that can contain one of the following values:
; *
; * OS_NO_ERR if the name was copied to 'pname'
; * OS_ERR_EVENT_TYPE if 'pevent' is not pointing to the proper event
; * control block type.
; * OS_ERR_PNAME_NULL You passed a NULL pointer for 'pname'
; * OS_ERR_PEVENT_NULL if you passed a NULL pointer for 'pevent'
; *
; * Returns : The length of the string or 0 if the 'pevent' is a NULL pointer.
; *********************************************************************************************************
; */
;
; #if OS_EVENT_NAME_SIZE > 0
; INT8U OSEventNameGet (OS_EVENT *pevent, char *pname, INT8U *err)
; {
; #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
; OS_CPU_SR cpu_sr;
; #endif
; INT8U len;
;
;
; OS_ENTER_CRITICAL();
; #if OS_ARG_CHK_EN > 0
; if (pevent == (OS_EVENT *)0) { /* Is 'pevent' a NULL pointer? */
; OS_EXIT_CRITICAL(); /* Yes */
; *err = OS_ERR_PEVENT_NULL;
; return (0);
; }
; if (pname == (char *)0) { /* Is 'pname' a NULL pointer? */
; OS_EXIT_CRITICAL(); /* Yes */
; *err = OS_ERR_PNAME_NULL;
; return (0);
; }
; #endif
; switch (pevent->OSEventType) {
; case OS_EVENT_TYPE_SEM:
; case OS_EVENT_TYPE_MUTEX:
; case OS_EVENT_TYPE_MBOX:
; case OS_EVENT_TYPE_Q:
; break;
;
; default:
; OS_EXIT_CRITICAL();
; *err = OS_ERR_EVENT_TYPE;
; return (0);
; }
; (void)strcpy(pname, pevent->OSEventName); /* Yes, copy name from OS_EVENT */
; len = strlen(pname);
; OS_EXIT_CRITICAL();
; *err = OS_NO_ERR;
; return (len);
; }
; #endif
;
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * ASSIGN A NAME TO A SEMAPHORE, MUTEX, MAILBOX or QUEUE
; *
; * Description: This function assigns a name to a semaphore, mutex, mailbox or queue.
; *
; * Arguments : pevent is a pointer to the event group. 'pevent' can point either to a semaphore,
; * a mutex, a mailbox or a queue. Where this function is concerned, it doesn't
; * matter the actual type.
; *
; * pname is a pointer to an ASCII string that will be used as the name of the semaphore,
; * mutex, mailbox or queue. The string must be able to hold at least
; * OS_EVENT_NAME_SIZE characters.
; *
; * err is a pointer to an error code that can contain one of the following values:
; *
; * OS_NO_ERR if the requested task is resumed
; * OS_ERR_EVENT_TYPE if 'pevent' is not pointing to the proper event
; * control block type.
; * OS_ERR_PNAME_NULL You passed a NULL pointer for 'pname'
; * OS_ERR_PEVENT_NULL if you passed a NULL pointer for 'pevent'
; *
; * Returns : None
; *********************************************************************************************************
; */
;
; #if OS_EVENT_NAME_SIZE > 0
; void OSEventNameSet (OS_EVENT *pevent, char *pname, INT8U *err)
; {
; #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
; OS_CPU_SR cpu_sr;
; #endif
; INT8U len;
;
;
; OS_ENTER_CRITICAL();
; #if OS_ARG_CHK_EN > 0
; if (pevent == (OS_EVENT *)0) { /* Is 'pevent' a NULL pointer? */
; OS_EXIT_CRITICAL(); /* Yes */
; *err = OS_ERR_PEVENT_NULL;
; return;
; }
; if (pname == (char *)0) { /* Is 'pname' a NULL pointer? */
; OS_EXIT_CRITICAL(); /* Yes */
; *err = OS_ERR_PNAME_NULL;
; return;
; }
; #endif
; switch (pevent->OSEventType) {
; case OS_EVENT_TYPE_SEM:
; case OS_EVENT_TYPE_MUTEX:
; case OS_EVENT_TYPE_MBOX:
; case OS_EVENT_TYPE_Q:
; break;
;
; default:
; OS_EXIT_CRITICAL();
; *err = OS_ERR_EVENT_TYPE;
; return;
; }
; len = strlen(pname); /* Can we fit the string in the storage area? */
; if (len > (OS_EVENT_NAME_SIZE - 1)) { /* No */
; OS_EXIT_CRITICAL();
; *err = OS_ERR_EVENT_NAME_TOO_LONG;
; return;
; }
; (void)strcpy(pevent->OSEventName, pname); /* Yes, copy name to the event control block */
; OS_EXIT_CRITICAL();
; *err = OS_NO_ERR;
; }
; #endif
;
; /*$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) KCREENTRANT
RSEG ?PR?_?OSInit?OS_CORE
_?OSInit:
USING 0
; SOURCE LINE # 230
; {
; #if OS_VERSION >= 204
; OSInitHookBegin(); /* Call port specific initialization code */
; SOURCE LINE # 233
LCALL _?OSInitHookBegin
; #endif
;
; OS_InitMisc(); /* Initialize miscellaneous variables */
; SOURCE LINE # 236
LCALL OS_InitMisc
;
; OS_InitRdyList(); /* Initialize the Ready List */
; SOURCE LINE # 238
LCALL OS_InitRdyList
;
; OS_InitTCBList(); /* Initialize the free list of OS_TCBs */
; SOURCE LINE # 240
LCALL OS_InitTCBList
;
; OS_InitEventList(); /* Initialize the free list of OS_EVENTs */
; SOURCE LINE # 242
LCALL OS_InitEventList
;
; #if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
; OS_FlagInit(); /* Initialize the event flag structures */
; #endif
;
; #if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART > 0)
; OS_MemInit(); /* Initialize the memory manager */
; #endif
;
; #if (OS_Q_EN > 0) && (OS_MAX_QS > 0)
; OS_QInit(); /* Initialize the message queue structures */
; #endif
;
; OS_InitTaskIdle(); /* Create the Idle Task */
; SOURCE LINE # 256
LCALL OS_InitTaskIdle
; #if OS_TASK_STAT_EN > 0
; OS_InitTaskStat(); /* Create the Statistic Task */
; #endif
;
; #if OS_VERSION >= 204
; OSInitHookEnd(); /* Call port specific init. code */
; SOURCE LINE # 262
LJMP _?OSInitHookEnd
; END OF _?OSInit
; #endif
; }
; /*$PAGE*/
; /*
; *********************************************************************************************************
; * ENTER ISR
; *
; * Description: This function is used to notify uC/OS-II that you are about to service an interrupt
; * service routine (ISR). This allows uC/OS-II to keep track of interrupt nesting and thus
; * only perform rescheduling at the last nested ISR.
; *
; * Arguments : none
; *
; * Returns : none
; *
; * Notes : 1) This function should be called ith interrupts already disabled
; * 2) Your ISR can directly increment OSIntNesting without calling this function because
; * OSIntNesting has been declared 'global'.
; * 3) You MUST still call OSIntExit() even though you increment OSIntNesting directly.
; * 4) You MUST invoke OSIntEnter() and OSIntExit() in pair. In other words, for every call
; * to OSIntEnter() at the beginning of the ISR you MUST have a call to OSIntExit() at the
; * end of the ISR.
; * 5) You are allowed to nest interrupts up to 255 levels deep.
; * 6) I removed the OS_ENTER_CRITICAL() and OS_EXIT_CRITICAL() around the increment because
; * OSIntEnter() is always called with interrupts disabled.
; *********************************************************************************************************
; */
;
; void OSIntEnter (void) KCREENTRANT
RSEG ?PR?_?OSIntEnter?OS_CORE
_?OSIntEnter:
USING 0
; SOURCE LINE # 291
; {
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -