GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-151
4
SVCREQ #10: Read Folder Name Use SVCREQ function #10 to read the name of the currently-executing folder.
Note
Of the CPUs discussed in this manual, Service Request 10 is supported only
by 90-30 CPUs, beginning with Release 8.0.
The output parameter block has a length of four words. It returns eight ASCII characters; the last is
a null character (00h). If the program name has fewer than seven characters, null characters are
appended to the end.
Low Byte High Byte
character 1 character 2 address
character 3 character 4 address + 1
character 5 character 6 address + 2
character 7 00 address + 3
Example:
In the following example, when enabling input %I0301 transitions off, register location %R0099 is
loaded with the value 10, which is the function code for the Read Folder Name function. The
Program Block READ_ID is then called to actually retrieve the folder name. The parameter block
is located at address %R0100. READ_ID is also used in the next example.
| %I0001 %I0301
|——| |——————————————————————————————————————————————————————————————(↑)—
|
| _____ __________
| %I0301 | | | |
|——| |———|MOVE_|——————————| READ_ID |
| | WORD| |__________|
| | |
| CONST —|IN Q|— %R0099
| 0010 | LEN |
| | 0001|
| |_____|
|
.
.
.
Program Block READ_ID
|
|%I0102 | |
|——| |———| SVC_|—
| | REQ |
| | |
| %R0099—|FNC |
| | |
| | |
| %R0100—|PARM |
| |_____|
|