From 33c6487b886eacad916a12637a575ad563fa9e61 Mon Sep 17 00:00:00 2001 From: AJR Date: Fri, 13 Jan 2023 20:09:57 -0500 Subject: bus/thomson/cd90_015.cpp, tecmo/tehkanwc.cpp: Misc. notes --- src/devices/bus/thomson/cd90_015.cpp | 5 +++-- src/mame/tecmo/tehkanwc.cpp | 1 + 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/src/devices/bus/thomson/cd90_015.cpp b/src/devices/bus/thomson/cd90_015.cpp index 7205ff3c74b..dce64d306bc 100644 --- a/src/devices/bus/thomson/cd90_015.cpp +++ b/src/devices/bus/thomson/cd90_015.cpp @@ -1,9 +1,10 @@ // license:BSD-3-Clause // copyright-holders:Olivier Galibert -// CD 90-015 - Floppy drive controller built from a MC6843 +// CD 90-015 - Floppy disk interface built from a MC6843 single-density controller // -// Handles up to four 5.25 single-sided drives (UD 90-070) +// Handles up to four 5.25 single-sided drives (UD 90-070). Formatted capacity is 80 KB. +// The lack of a track zero sensor is confirmed from schematics. #include "emu.h" #include "cd90_015.h" diff --git a/src/mame/tecmo/tehkanwc.cpp b/src/mame/tecmo/tehkanwc.cpp index 3c9b7ed9f19..c335cd5ee1a 100644 --- a/src/mame/tecmo/tehkanwc.cpp +++ b/src/mame/tecmo/tehkanwc.cpp @@ -18,6 +18,7 @@ TODO: - Figure out the controls in 'tehkanwc' (they are told to be better in MAME 0.34) - Figure out the controls in 'teedoff' - Confirm "Difficulty" Dip Switch in 'teedoff' +- What does the Z80 I register do here? (HW can latch it during refresh cycles.) Additional notes (Steph 2002.01.14) -- cgit v1.2.3