From 668471347062f964d36d4ee3e39fd016d9bbdde7 Mon Sep 17 00:00:00 2001 From: Guru Date: Thu, 17 Dec 2015 01:57:28 +0800 Subject: [PATCH] fanucspmg.cpp: added preliminary keyboard matrix diagram so it doesn't get lost provided by Lord Nightmare (+notes) based on a rough keyboard schematic that I drew up --- src/mame/drivers/fanucspmg.cpp | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/src/mame/drivers/fanucspmg.cpp b/src/mame/drivers/fanucspmg.cpp index 3ad667665d4..88eb5836d87 100644 --- a/src/mame/drivers/fanucspmg.cpp +++ b/src/mame/drivers/fanucspmg.cpp @@ -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"