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# 2024-12-09 - Fixing The PgDn and PgUp Keys In MS-Kermit |
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FreeDOS ships mskermit 3.16, which emulates a DEC vt320 terminal. I |
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configured my getty as a vt220 terminal in /etc/inittab. When i press |
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PgUp it will "roll back screen" and when i press PgDn it will |
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"roll screen forward", scrolling through kermit's screen history. I |
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would rather it send control codes like xterm and other terminal |
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emulators do. |
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At the Linux command prompt, i looked up the control codes from |
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terminfo. |
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$ infocmp -1 vt220 | grep 'k[np]p' |
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knp=\E[6~, |
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kpp=\E[5~, |
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That is <Esc>[6~ for PgDn and <Esc>[5~ for PgUp. |
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At the mskermit prompt, i looked up the keyboard scan codes according |
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to kermit. |
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[C:\FREEDOS\NET\MSKERMIT] MS-Kermit>SET KEY |
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Push key to be defined: <press PgDn> |
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Scan Code \4433 decimal is defined as |
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Verb: dnscn \Kdnscn |
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Enter new definition: ... |
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[C:\FREEDOS\NET\MSKERMIT] MS-Kermit>SET KEY |
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Push key to be defined: <press PgUp> |
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Scan Code \4425 decimal is defined as |
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Verb: upscn \Kupscn |
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Enter new definition: ... |
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That is \4433 for PgDn and \4425 for PgUp. |
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I added the following lines to my mskermit.ini |
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SET KEY \4433 \27[6~ |
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SET KEY \4425 \27[5~ |
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Now, when i connect with mskermit and press PgUp and PgDn, Linux |
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applications behave as i expect them to. |
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I can still use Ctrl+PgUp and Ctrl+PgDn to scroll through kermit's |
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screen history. |
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p.s. |
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I also remapped the End and Home keys to vt220 control codes. |
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This fixes the End and Home keys in the lynx browser. |
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SET KEY \4431 \27[4~ |
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SET KEY \4423 \27[1~ |
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tags: bencollver,retrocomputing,technical,unix |
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# Tags |
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bencollver |
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retrocomputing |
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technical |
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unix |
