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fanucspmg.cpp: added preliminary keyboard matrix diagram so it doesn't get lost <nw>

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provided by Lord Nightmare (+notes) based on a rough keyboard schematic that I drew up
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Guru 2015-12-17 01:57:28 +08:00
parent af6867ea07
commit 6684713470
1 changed files with 31 additions and 0 deletions
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src/mame/drivers/fanucspmg.cpp
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@ -494,6 +494,37 @@ The arrows denote direction of data flow.
8085 sets f8008 to keyboard row 0 AND 0xf3
" " f8009 to keyboard row 1
Keyboard Matrix (preliminary)
---------------
Row select
| Columns Key by bit
| D0 D1 D2 D3 D4 D5 D6 D7
V V V V V V V V V
0x?? F0 F1 F2 F3 F4 F5 F6 F7
0x?? F8 F9 F10 F11 F12 F13 F14 F15
0x30 0 1 2 3 4 5 6 7
0x38 8 9 : ; < - > ?
0x40 @ A B C D E F G
0x48 H I J K L M N O
0x50 P Q R S T U V W
0x58 X Y Z [ Yen ] ^ _
0x?? KP0 KP1 KP2 KP3 KP4 KP5 KP6 KP7
0x?? KP8 KP9 KP. KP, N/A N/A N/A SPACE
0x?? K+ K- K* K/ N/A N/A N/A DEL
0x?? BS (K)NL CAN N/A N/A N/A N/A N/A
0x?? K0 K1 K2 K3 N/A N/A N/A N/A
The following keys I have no idea where they map as they don't show a consistent column bit in the diagram:
LOAD UC LC R0 R1 R2 R3
Also any keys which are N/A may actually have something else mapped there.
In short: this keyboard seems to follow some sort of ASCII-derived row/column pattern
If this is a true ascii keyboard, then UC, LC probably do not connect to the matrix at all,
but instead make it so rows 0x40, 0x48 0x50 and 0x58 produce characters from ascii rows 0x60, 0x68, 0x70 and 0x78 (uppercase becomes lowercase)
likewise 0x30 and 0x38 will produce chars from 0x20 and 0x28 (numbers become symbols)
the keypad symbols seem to use a different matrix pattern from the rest?
****************************************************************************/
#include "emu.h"