The u0039 user exit reads an absolute disk sector. This user exit provides more information than u14a.
Syntax
result = oconv(read.command, ’u39’) |
Description
read.command is a dynamic array that contains:
read.command<1> = drive.num, <vm>, cylinder.num, <vm>, head.num, <vm>, sector.num |
where drive.num can be:
1 |
Drive A: |
2 |
Drive B: |
3 |
Drive C: |
4 |
Drive D: |
read.command<2> = mode, <vm>, table1, <vm>, table2, <vm>, #bytes |
where
mode |
Possible values. |
|
1 |
Convert ASCII to hexadecimal. |
|
2 |
Transform and prefix character. |
|
3 |
Translate and delete character. |
|
4 |
Transform, prefix and drop Most Significant Bit. |
|
5 |
Transform, delete and drop Most Significant Bit. |
|
<vm> |
Value mark. |
|
table1 |
Contains one or more hexadecimal characters to scan for on input. If there is more than one entry, then they are separated by subvalue marks. |
|
<vm> |
Value mark. |
|
table2 |
Contains one or more hexadecimal characters to replace the corresponding characters from table1. If there is more than one entry, then they are separated by subvalue marks. |
|
#bytes |
Number of bytes per sector. |
|
See Also