Fire up the machine with the development pac.  Go into the monitor by entering "E E003", load the WAV from the monitor in the normal way. A slash screen will then appear and you will be returned to the development pac environment.


I don't have the manual but here is some info. from other sources:

This information from infoworld, 9th June 1980 page 18...

DPX (Development Pac Extension), a co-resident machine language system), has been released by Quality Software.  According to the company, the program loads on top of the Exidy Z-80 Development PAC and extends the ROM-based assembler with an additional 18 commands.  Additional file commands enable to user to extract blocks of Z-80 source text onto dual cassette Named files, at least 1200 buad, and to merge Named routines from cassette files into selected places in existing text.  DPX runs on all Sorcerer configurations from 8K to 48K, and does not interfer with normal ROM-based commands.

..and this piece from Sorcerer Apprentice, Jan 1982...

From MONITOR enter: LOG DPX48 [cr] (There are 
different versions for 8K. 16K, & 32K SORCERERS, plus 
they supply you with a load module version, so you can 
relocate it to any location you desire!) After it loads and 
displays a sign-on message, you will be in DDT mode. The 
DEVELOPMENT PAC will now function normally as before, 
but you will have approximately 22 additional commands at 
your disposal. You will now get spoiled very .quickly! The 
most time consuming aspects of using the PAC is when using 
the EDITOR to key and edit your source code file. With 
DPX, you enter the EDITOR by typing: #ED [cr]. This is 
the only command you need to enter the EDITOR, (unless 
you wish to reinitialize the edit buffer, in which case you 
would use the old E :ED). Gone FOREVER will be the 
accidental destruction of your source file by forgetting to 
use the editor restart command! The. excellent docu¬ 
mentation accompanying DPX also explains how to recover 
from an intentional destruction of your source file.