From the preface:

"This manual describes the OS/VS - DOS/VSE - VM/370 assembler language.

The OS/VS - VM/370 assembler language offers the following improvements over the OS/360 assembler language as processed by the F assembler:
1. New instructions and functions

2. Relaxation of language restrictions on character string lengths, attribute usage, SET symbol dimensions, and on the number of entries allowed in the External Symbol Dictionary

3. New system variable symbols

4. New options: for example, for the printing of statements in the program listings or for the alignment of constants and areas.

The figure on the following pages lists in detail these assembler language improvements and indicates the sections in the manual where the instructions and functions incorporating these improvements are described. If you are already familiar with the 6s/360 assembler language as processed by the F assembler, you need only read those
sections. Also included in the figure on the following pages are the improvements of the DOS/VS assembler language over the DOS/360 assembler language as processed by the D assembler."

Reference Number : GC33-4010-5

Date Published : March 1979

Manufacturer : IBM

Format : PDF