Private Modes used by DEC

This page is just a rough extract from the DECronomicon. These modes are parameters to the Set Mode (SM) and Reset Mode (RM) sequences.

No. Mnemonic Description
1DECCKMCursor Keys Mode
2DECANMANSI/VT52 Mode
3DECCOLMColumn
4DECSCLMScrolling
5DECSCNMScreen Mode (light or dark screen)
6DECOMOrigin Mode
7DECAWMAuto Wrap Mode
8DECARMAuto Repeat Mode
9DECINLMInterlace Mode
10DECEDMEditing Mode
11DECLTMLine Transmit Mode
12DECKANAMKatakana Shift Mode
13DECSCFDMSpace Compression/Field Delimiter Mode
14DECTEMTransmit Execution Mode
15
16DECEKEMEdit Key Execution Mode
17
18DECPFFPrint Form Feed
19DECPEXPrinter Extent
20OV1Overstrike
21BA1Local BASIC
22BA2Host BASIC
23PK1Programmable Keypad
24Low/High Density Printing
24AH1Auto Hardcopy
25DECTCEMText Cursor Enable Mode
26
27DECPSPProportional Spacing
28
29DECPSMPitch Select Mode
30
31
32
33
34DECRLMCursor Right to Left Mode
35DECHEBMHebrew (Keyboard) Mode
36DECHEMHebrew Encoding Mode
37
38DECTEKTektronix 4010/4014 Mode
39
40DECCRNLMCarriage Return/New Line Mode
41DECUPMUnidirectional Print Mode
42DECNRCMNational Replacement Character Set Mode
43DECGEPMGraphics Expanded Print Mode
44DECGPCMGraphics Print Color Mode
45DECGPCSGraphics Print Color Syntax
46DECGPBMGraphics Print Background Mode
47DECGRPMGraphics Rotated Print Mode
48
49DECTHAIMThai Input Mode
50DECTHAICMThai Cursor Mode
51DECBWRMBlack/White Reversal Mode
52DECOPMOrigin Placement Mode
53DEC131TMVT131 Transmit Mode
54
55DECBPMBold Page Mode
56
57DECNAKBGreek/N-A Keyboard Mapping Mode
58DECIPEMEnter IBM Proprinter Emulation Mode
59DECKKDMKanji/Katakana Display Mode
60DECHCCMHorizontal Cursor Coupling
61DECVCCMVertical Cursor Coupling Mode
62
63
64DECPCCMPage Cursor Coupling Mode
65DECBCMMBusiness Color Matching Mode
66DECNKMNumeric Keypad Mode
67DECBKMBackarrow Key Mode
68DECKBUMKeyboard Usage Mode
69DECVSSMVertical Split Screen Mode
69DECLRMMLeft Right Margin Mode
70DECFPMForce Plot Mode
71
72
73DECXRLMTransmission Rate Limiting
74
75
76
77
78
79
80DECSDMSixel Display Mode
81DECKPMKey Position Mode
82
83
84
85
86
87
88
89
90DECTHAISCMThai Space Compensating Mode
91
92
93
94
95DECNCSMNo Clearing Screen on Column Change Mode
96DECRLCMRight to Left Copy Mode
97DECCRTSMCRT Save Mode
98DECARSMAuto Resize Mode
99DECMCMModem Control Mode
100DECAAMAuto Answerback Mode
101DECCANSMConceal Answerback Message Mode
102DECNULMIgnore Null Mode
103DECHDPXMHalf Duplex Mode
104DECESKMSecondary Keyboard Language Mode
105
106DECOSCNMOverscan Mode
107
108DECNUMLKNumLock Mode
109DECCAPSLKCaps Lock Mode
110DECKLHIMKeyboard LEDs Host Indicator Mode
111DECFWMFramed Windows Mode
112DECRPLReview Previous Lines Mode
113DECHWUMHost Wake-Up Mode
114DECATCUMAlternate Text Color Underline Mode
115DECATCBMAlternate Text Color Blink Mode
116DECBBSMBold and Blink Style Mode
117DECECMErase Color Mode