參數(shù)資料
型號： RX78K4
英文描述： 78K/IV Series Real-Time OS Fundamental | User＇s Manual[01/1997]
中文描述： 78K/IV系列實(shí)時(shí)操作系統(tǒng)的基本|用戶手冊[01/1997]
文件頁數(shù)： 48/96頁
文件大小： 265K
代理商： RX78K4
CHAPTER 4 RX78K/IV SYSTEM CALL LIST
39
4.1.9
wup_tsk (Wakeup Task)
iwup_tsk (Wakeup Task for Interrupt)
[Function]
Wakes up a task and places it in the READY state from the WAIT state.
[Remarks]
Places a task that has been placed in the WAIT state by system call “slp_tsk” or “wai_tsk” in the READY state.
The target task is indicated by tskid. The task itself cannot be specified.
If the target task has not executed “slp_tsk” or “wai_tsk” and is not in the WAIT state, this “wup_tsk” request is
queued. In this case, this “wup_tsk” request becomes valid when the target task later executes “slp_tsk” or
“wai_tsk”.
If the number of wake-up requests in the queue is about to exceed the upper limit (0FFH), an error (E_QOVR)
is returned.
[System call ID number]
wup_tsk = 8
[Parameter]
tskid (Task Identifier)
Task ID (TCB top address)
- 24 bits (large model)
- 16 bits (small model)
[Return parameter]
E_OK
E_DMT
E_QOVR
Normal termination
Specified task is in DORMANT state
Queue overflow
[Assembler format]
On issuing wup_tsk
[Large model]
MOV
MOVW
MOV
CALLT
[Small model]
MOV
MOVW
CALLT
bnk0_b, #8
bnk0_up, #tskid
bnk0_d, #tskid
[40H]
:
bnk0_b, #8
bnk0_up, #tskid
[40H]
:
C register = return parameter
C register = return parameter
On issuing iwup_tsk
[Large model]
MOVG
CALLT
[Small model]
MOVW
CALLT
UUP, #tskid
[46H]
:
UP, #tskid
[46H]
:
C register = return parameter
C register = return parameter
[C format]
On issuing wup_tsk
ret = wup_tsk (tskid);
char
On issuing iwup_tsk
ret = iwup_tsk (tskid);
char
*tskid;
*tskid;
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