AAh TM$MNAM get month name
Input B register - Month 0 - 11 (0 is Jan).
Output X register - Points to the month name string.
Description

Returns X as the address of the 3 letter month name for the month contained in the B register. Month is in current language selected.

If the B register is not in the range 0 - 11, garbage will be returned.

Note that the month name will be capitalized.

This call is not available on CM/XP machines.

Example Displays the 3 letter name for December:
        LDAB    #11             ;December
        OS      TM$MNAM
        LDAB    #3              ;name is always 3 bytes long
        OS      DP$PRNT         ;print the month name on the screen
        RTS
Errors - none -