u014b user exit

The u014b user exit writes an absolute disk sector.

Syntax

result = oconv(write.command, ’u014b’)

Parameter(s)

result A status code indicating:
00 Successful.
xx Failed, where xx is any nonzero code.
write.command write.command<1>  =  drive.num , <vm>,  block.num
drive.num

1 = Drive A:

2 = Drive B:

3 = Drive C:

4 = Drive D:

<vm> Value mark.
block.num Logical disk block number to write.
write.command<2> = mode
Can be:
1 Convert hexadecimal to ASCII.
write.command<3> u014b
write.command<4> A sector’s worth of data to write, in 1024 2-digit hexadecimal characters, which corresponds to a 512-byte sector.