TZUTC: -0800   
   MSGID: 51694.syncprog@1:103/705 2c0a346b   
   PID: Synchronet 3.20c-Linux master/a8d818585 Jan 28 2025 GCC 12.2.0   
   TID: SBBSecho 3.23-Linux master/36f4eb6af Feb 05 2025 GCC 12.2.0   
   BBSID: VERT   
   CHRS: UTF-8 4   
   https://gitlab.synchro.net/main/sbbs/-/commit/ac68809c9d1f14f12b8fd6e1   
   Modified Files:   
   	src/conio/cterm.c   
   Log Message:   
   Split Prestel from Beeb emulation parsing, add VDU 7, 23, and 31   
      
   Prestel and Beeb emulations are different enough that using a shared   
   switch statement doesn't really make sense.   
      
   This adds Mode 7 support for VDU commands 7 (beep), 23 (cursor only),   
   and 31 (move to X/Y, 0-based).   
      
   The rest of the unsupported commands don't seem overly useful in a   
   BBS context (disable/enable output) or I don't want to deal with   
   documenting and implementing ("Page mode").   
   --- SBBSecho 3.23-Linux   
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