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author hap <happppp@users.noreply.github.com>2019-05-07 19:09:34 +0200
committer hap <happppp@users.noreply.github.com>2019-05-07 19:09:49 +0200
commit17c8850d0b472cb568dea4c84aecc80462b10010 (patch)
tree669de520da400fbcde59d9f552fe6913a3017294
parentb58b31e47ccc7d850ed10a15f94713c06fe19aa5 (diff)
mattelchess: update note (nw)
-rw-r--r--src/emu/xtal.cpp1
-rw-r--r--src/mame/drivers/mattelchess.cpp2
2 files changed, 2 insertions, 1 deletions
diff --git a/src/emu/xtal.cpp b/src/emu/xtal.cpp
index 63467731c09..de7697f7bc0 100644
--- a/src/emu/xtal.cpp
+++ b/src/emu/xtal.cpp
@@ -226,6 +226,7 @@ const double XTAL::known_xtals[] = {
16'000'000, /* 16_MHz_XTAL Extremely common, used on 100's of PCBs */
16'097'280, /* 16.09728_MHz_XTAL DEC VT240 (1024 * 262 * 60) */
16'128'000, /* 16.128_MHz_XTAL Fujitsu FM-7 */
+ 16'200'000, /* 16.2_MHz_XTAL Debut */
16'257'000, /* 16.257_MHz_XTAL IBM PC MDA & EGA */
16'364'000, /* 16.364_MHz_XTAL Corvus Concept */
16'384'000, /* 16.384_MHz_XTAL - */
diff --git a/src/mame/drivers/mattelchess.cpp b/src/mame/drivers/mattelchess.cpp
index 5a8ec04460e..96b00890237 100644
--- a/src/mame/drivers/mattelchess.cpp
+++ b/src/mame/drivers/mattelchess.cpp
@@ -83,7 +83,7 @@ void mchess_state::machine_reset()
void mchess_state::update_reset(ioport_value state)
{
- // assume that SAVE switch powers off the CPU
+ // battery is disconnected from CPU VCC pin when power switch is in SAVE mode
// (at reboot, the game will read the chessboard positions from LCD RAM)
m_maincpu->set_input_line(INPUT_LINE_RESET, state ? ASSERT_LINE : CLEAR_LINE);
}