From 6a4e6bbbb404022825d81bf15c03601da961b12b Mon Sep 17 00:00:00 2001 From: hap Date: Wed, 14 Jul 2021 12:26:12 +0200 Subject: fidel_sc6: add note --- src/devices/machine/tmc0999.cpp | 3 ++- src/mame/drivers/fidel_sc6.cpp | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/src/devices/machine/tmc0999.cpp b/src/devices/machine/tmc0999.cpp index 113f8d68c9c..d93127499f1 100644 --- a/src/devices/machine/tmc0999.cpp +++ b/src/devices/machine/tmc0999.cpp @@ -57,7 +57,8 @@ void tmc0999_device::di_w(u8 data) u8 tmc0999_device::do_r() { - return m_rd ? m_ram[m_ram_address] : 0; + u8 data = m_rd ? m_ram[m_ram_address] : 0; + return data & 0xf; } void tmc0999_device::wr_w(int state) diff --git a/src/mame/drivers/fidel_sc6.cpp b/src/mame/drivers/fidel_sc6.cpp index 25fd6682510..d1130677764 100644 --- a/src/mame/drivers/fidel_sc6.cpp +++ b/src/mame/drivers/fidel_sc6.cpp @@ -49,6 +49,9 @@ Gambit(v3) hardware notes: MCU ports I/O again identical to SC6. The same MCU+ROM was also used in Designer 1500(PCB label 510.1131A01). +And also in The Classic(PCB label 510-1095A01), 100-1020B02 MCU. + +100-1020B02 ROM contents is confirmed to be identical to 100-1020B01. Gambit Voice hardware notes: - TMP80C50AP-6-9311 MCU, 4KB internal ROM, 6MHz XTAL -- cgit v1.2.3