diff options
Diffstat (limited to 'src/devices/bus/rs232/mboardd.cpp')
-rw-r--r-- | src/devices/bus/rs232/mboardd.cpp | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/devices/bus/rs232/mboardd.cpp b/src/devices/bus/rs232/mboardd.cpp index cdbe002c8d1..2af648bd831 100644 --- a/src/devices/bus/rs232/mboardd.cpp +++ b/src/devices/bus/rs232/mboardd.cpp @@ -2,16 +2,16 @@ // copyright-holders:R. Belmont /* - mboardd.cpp - Mockingboard D emulation - by R. Belmont + mboardd.cpp - Mockingboard D emulation + by R. Belmont - The Apple IIc didn't have slots, so Sweet Micro Systems came up with this, a Mockingboard - in a little box that attached to the IIc's modem port. There's nothing special about the - IIc though - with a proper cable, anything that speaks 9600 8N1 RS-232 could drive this - device. + The Apple IIc didn't have slots, so Sweet Micro Systems came up with this, a Mockingboard + in a little box that attached to the IIc's modem port. There's nothing special about the + IIc though - with a proper cable, anything that speaks 9600 8N1 RS-232 could drive this + device. - A decent disassembly of the 6803 firmware is available from the Apple II Documentation Project: - https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Audio/Sweet%20Microsystems%20Mockingboard/Source%20Code/ + A decent disassembly of the 6803 firmware is available from the Apple II Documentation Project: + https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Audio/Sweet%20Microsystems%20Mockingboard/Source%20Code/ */ @@ -35,7 +35,7 @@ mockingboard_d_device::mockingboard_d_device(const machine_config &mconfig, cons void mockingboard_d_device::device_add_mconfig(machine_config &config) { - M6803(config, m_cpu, 4.9152_MHz_XTAL); // value reverse-engineered from 9600 baud SCI rate needed + M6803(config, m_cpu, 4.9152_MHz_XTAL); // value reverse-engineered from 9600 baud SCI rate needed m_cpu->set_addrmap(AS_PROGRAM, &mockingboard_d_device::m6803_mem); m_cpu->in_p2_cb().set(FUNC(mockingboard_d_device::p2_r)); m_cpu->out_p1_cb().set(FUNC(mockingboard_d_device::p1_w)); |