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65 lines
1.5 KiB
Plaintext
65 lines
1.5 KiB
Plaintext
import VTMode from "@/components/VTMode";
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# Origin (DECOM)
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<VTMode value={6} />
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Changes the origin of grid coordinates to be relative to the current scroll
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region.
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When set or unset, this invokes [Cursor Position (CUP)](/vt/cup) with row 1 and
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column 1. If origin mode is set, this will position the cursor to the
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top-left location of the current scroll region. If origin mode is not set,
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this will position the cursor to the top-left location of the screen. The
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cursor position will be set even if the origin mode is _unchanged_.
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The following commands are affected by origin mode. Please see their
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respective documentation for details on how origin mode impacts their
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behavior.
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- [Carriage Return (CR)](/vt/cr)
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- [Cursor Position Set (CUP)](/vt/cup)
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- [Cursor Position Report (CPR)](/vt/cpr)
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- [Save Cursor (DECSC)](/vt/decsc)
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- [Restore Cursor (DECRC)](/vt/decrc)
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- [Horizontal Position Absolute (HPA)](/vt/hpa)
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- [Vertical Position Absolute (VPA)](/vt/vpa)
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- [Horizontal Position Relative (HPR)](/vt/hpr)
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- [Vertical Position Relative (VPR)](/vt/vpr)
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- [Cursor Backward Tabulation (CBT)](/vt/cbt)
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- [Screen Alignment Test (DECALN)](/vt/decaln)
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- [Full Reset (RIS)](/vt/ris)
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- [Soft Reset (DECSTR)](/vt/decstr)
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## Validation
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### DECOM V-1: Unset No Margins
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```bash
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printf "\033[H"
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printf "\033[2J"
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printf "ABC\n"
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printf "\033[?6l"
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printf "X"
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```
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```
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|XBC_____|
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|________|
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```
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### DECOM V-1: Set No Margins
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```bash
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printf "\033[H"
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printf "\033[2J"
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printf "ABC\n"
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printf "\033[?6h"
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printf "X"
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```
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```
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|XBC_____|
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|________|
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```
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