STIMER macro
and STIMERM macro
(SET option) is type 2, gets local and dispatcher locks.
For STIMER macro, GTF data is:
- R15
- No applicable data (old format only). Exit routine address (new
format only).
- R0
- Contents:
- Bytes
- Contents
- 0
- STIMER option byte, as follows:
| |
|
|
|---|
| 0... |
.... |
Indicates old format parameters. |
| 1... |
.... |
Indicates new format parameters. |
| .000 |
.... |
TUINTVL option. |
| .001 |
.... |
BINTVL option. |
| .010 |
.... |
MICVL option. |
| .011 |
.... |
DINTVL option. |
| .110 |
.... |
GMT option. |
| .111 |
.... |
TOD option. |
| .... |
1... |
ERRET option. Control is returned because of errors. Register
15 is set to 8. |
| .... |
.0.. |
STIMER macro present. |
| .... |
..00 |
Task request. Decrease the interval only when the task is
active. |
| .... |
..01 |
Wait request. Decrease the interval continuously and put the
task in a wait state until the interval expires. |
| .... |
..11 |
Real request. Decrease the interval continuously. |
- 1-3
- Exit address (old format only). No applicable data (new format
only).
- R1
- Address of the time value.
Time Value - 4 or 8 bytes depending
on option in force:
- a.
- DINTVL,TOD,MICVL, and GMT - 8 bytes; represents the time value.
- b.
- BINTVL and TUINTVL - 4 bytes; represents the time value.
- R4
- Points to requester's TCB.
- R5
- Points to the SVRB.
- R7
- Points to the ASCB.
- R14
- Contains the return address.
For STIMERM SET, GTF data is:
- R0
- Flag bytes formatted as follows:
- Bytes
- Contents
- 0
- Flag bits as follows:
| |
|
|
|---|
| 0000 |
0... |
Reserved; must be zero. |
| .... |
.1.. |
STIMERM macro present. |
| .... |
..00 |
Reserved; must be zero. |
- 1-3
- Reserved; must be zero.
- R1
- Points to a 24-byte parameter list, which is formatted as follows:
- Bytes
- Contents
- 0
- Flag bits, as follows:
| |
|
|
|---|
| 0... |
.... |
Reserved; must be zero. |
| .000 |
.... |
TUINTVL option. |
| .001 |
.... |
BINTVL option. |
| .010 |
.... |
MICVL option. |
| .011 |
.... |
DINTVL option. |
| .110 |
.... |
GMT option. |
| .111 |
.... |
TOD option. |
| .... |
1... |
ERRET option. |
| .... |
.0.. |
Reserved; must be zero. |
| .... |
..01 |
WAIT=YES option. |
| .... |
..11 |
WAIT=NO option. |
- 1-2
- Reserved; must be zero.
- 3
- Level number of parameter list. Must be X'01'.
- 4-7
- Address of requester's field in which the TQE id will be returned.
- 8-11
- Address of time interval.
- 12-15
- Address of user specified exit routine or zero.
- 16-19
- Parameter value to be passed to exit routine or zero.
- 20-23
- Reserved; must be zero.
- R4
- Points to requester's TCB.
- R5
- Points to the SVRB.
- R7
- Points to the ASCB.
- R14
- Contains the return address.