DFHM32A$, DFHM321$ executable module

Entry points

DFHM32NA

Called by

DFHMCP, DFHPBP

Description

For a BMS output request, the 3270 mapping program generates the appropriate data stream for a 3270 device, and returns control to DFHPBP which invokes the DFHTPP module to send the data to the appropriate destination, which is either to the direct terminal, or to temporary storage, or back to the caller. For a BMS input request, the data stream from a 3270 device is examined and mapped into a user application TIOA format.

The main subsections of DFHM32 are:

BMFMHTST - Create beginning of 3270 data stream
           (FMH cursor positioning)
BMMID    - Input mapping
BMMMS    - Merge maps (output mapping)
M32PF    - Process field.