Difference between revisions of "Keyboard"

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(Created page with "{{Port |Number=$**FE |ShortDesc=Series of specific ports that read keyboard key presses. |Readable=Yes |Writable=No |Subsystem=Input }} Reads keys on the keyboard depending on...")
 
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Reads keys on the keyboard depending on the upper byte of the port number.
 
Reads keys on the keyboard depending on the upper byte of the port number.
  
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! Port upper byte !! Keys affected
 
! Port upper byte !! Keys affected
 
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| $FE || V, C, X, Z, Caps Shift
 
| $FE || V, C, X, Z, Caps Shift
 
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[[File:Speckeys.png]]

Revision as of 23:04, 18 August 2017

Number $**FE
Decimal
Short desc. Series of specific ports that read keyboard key presses.
Bit Mask
Readable Yes
Writable No
Subsystem Input

Reads keys on the keyboard depending on the upper byte of the port number.

Port upper byte Keys affected
$7F B, N, M, Symbol Shift, Space
$BF H, K, J, L, Enter
$DF Y, U, I, O P
$EF 6, 7, 8, 9, 0
$F7 5, 4, 3, 2, 1
$FB T, R, E, W, Q
$FD G, F, D, S, A
$FE V, C, X, Z, Caps Shift

File:Speckeys.png