On Tue, Jan 4, 2022 at 3:38 PM Will Senn <will.senn@gmail.com> wrote:

> 1. Is mesg or an equivalent available in v7?
>
its not part of the C stdio library and by te

> 2. If not, what was the v7 way of putting strings out?
>
_puts   declared as an external

> 3. Why aren't the system call names defined?
>
Ah .. you want the DEC assembler ;-)    By the time of V5/V6 assembler is
starting to have less importance and by V7, little if anything is left.

> 4. What was the v7 way of naming system calls?
>
_XXX  where XXX is the system call declared as a global.