USBB17RX78K4-XXX NEC Electronics, USBB17RX78K4-XXX Datasheet - Page 51

• Manufacturer Part Number: USBB17RX78K4-XXX
• Description: 78K/4 series realtime OS
• Manufacturer: NEC Electronics

4.2.1 set_flg (Set Eventflag)
42
[Function]
[Remarks]
[System call ID number]
[Parameter]
[Return parameter]
[Assembler format]
[C format]
•
•
•
iset_flg (Set Eventflag for Interrupt)
Sets an event flag.
The event flag indicated by flgid is set to 1. If a task exists that has been made to wait for the event flag by
“wai_flg, cwai_flg”, the task is released from the WAIT state and placed in the READY state.
Two or more tasks can wait for the same event flag. In this case, the tasks can be released from the WAIT
state when “set_flg” is issued once.
set_flg = 10
flgid (Eventflag Identifier)
E_OK
On issuing set_flg
[Large model]
MOV
MOVW
MOV
CALLT
C register = return parameter
On issuing iset_flg
[Large model]
MOVG
CALLT
C register = return parameter
On issuing set_flg
ret = set_flg (flgid);
char
bnk0_b, #10
bnk0_d, #flgid
[40H]
:
[48H]
:
*flgid;
bnk0_up, #flgid
UUP, #flgid
CHAPTER 4
•
Event flag ID (Eventflag top address)
Normal termination
[Small model]
MOV
MOVW
CALLT
C register = return parameter
[Small model]
MOVW
CALLT
C register = return parameter
On issuing iset_flg
ret = iset_flg (flgid);
char
RX78K/IV SYSTEM CALL LIST
bnk0_b, #10
bnk0_up, #flgid
[40H]
[48H]
:
*flgid;
:
UP, #flgid
- 24 bits (large model)
- 16 bits (small model)