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Little Board/PC [Don Maslin Vintage Computer Archive]
This commit is contained in:
AJR 2019-11-12 13:29:10 -05:00
parent f51a7ea3ee
commit 5d74edba7d
4 changed files with 104 additions and 1 deletions
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3
scripts/target/mame/mess.lua
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@ -1590,7 +1590,9 @@ files {
createMESSProjects(_target, _subtarget, "ampro")
files {
MAME_DIR .. "src/mame/drivers/ampro.cpp",
MAME_DIR .. "src/mame/drivers/lb186.cpp",
MAME_DIR .. "src/mame/drivers/lbpc.cpp",
}
createMESSProjects(_target, _subtarget, "amstrad")
@ -3971,7 +3973,6 @@ files {
MAME_DIR .. "src/mame/drivers/am1000.cpp",
MAME_DIR .. "src/mame/drivers/ampex.cpp",
MAME_DIR .. "src/mame/drivers/ampex210.cpp",
MAME_DIR .. "src/mame/drivers/ampro.cpp",
MAME_DIR .. "src/mame/drivers/ampscarp.cpp",
MAME_DIR .. "src/mame/drivers/amust.cpp",
MAME_DIR .. "src/mame/drivers/anzterm.cpp",

98
src/mame/drivers/lbpc.cpp Normal file
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@ -0,0 +1,98 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/****************************************************************************
Skeleton driver for Ampro Little Board/PC.
This is unusual among PC/XT-compatible machines in that many standard
peripheral functions, including the interrupt and refresh controllers,
are integrated into the V40 CPU itself, with some software assistance
to compensate for DMAC incompatibilities. Two Vadem SDIP64 ASICs and a
standard FDC and UART provide most other PC-like hardware features. The
BIOS also supports the onboard SCSI controller.
****************************************************************************/
#include "emu.h"
//#include "bus/isa/isa.h"
#include "bus/nscsi/devices.h"
#include "cpu/nec/v5x.h"
#include "machine/ins8250.h"
#include "machine/ncr5380n.h"
#include "machine/upd765.h"
class lbpc_state : public driver_device
{
public:
lbpc_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
{
}
void lbpc(machine_config &config);
private:
void mem_map(address_map &map);
void io_map(address_map &map);
required_device<v40_device> m_maincpu;
};
void lbpc_state::mem_map(address_map &map)
{
map(0x00000, 0x9ffff).ram(); // 256K, 512K or 768K DRAM
// 0xE0000–0xEFFFF: empty socket
// 0xF0000-0xF7FFF: empty socket
map(0xf8000, 0xfffff).rom().region("bios", 0);
}
void lbpc_state::io_map(address_map &map)
{
map(0x0330, 0x0337).rw("scsi:7:ncr", FUNC(ncr53c80_device::read), FUNC(ncr53c80_device::write));
map(0x0370, 0x0377).m("fdc", FUNC(wd37c65c_device::map));
map(0x03f8, 0x03ff).rw("com", FUNC(ins8250_device::ins8250_r), FUNC(ins8250_device::ins8250_w));
}
static INPUT_PORTS_START(lbpc)
INPUT_PORTS_END
void lbpc_state::lbpc(machine_config &config)
{
V40(config, m_maincpu, 14.318181_MHz_XTAL / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &lbpc_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &lbpc_state::io_map);
m_maincpu->set_clk<0>(14.318181_MHz_XTAL / 12); // TCLK input generated by ASIC1
m_maincpu->set_clk<1>(14.318181_MHz_XTAL / 12);
m_maincpu->set_clk<2>(14.318181_MHz_XTAL / 12);
m_maincpu->in_ior_cb<3>().set("scsi:7:ncr", FUNC(ncr53c80_device::dma_r));
m_maincpu->out_iow_cb<3>().set("scsi:7:ncr", FUNC(ncr53c80_device::dma_w));
INS8250(config, "com", 1.8432_MHz_XTAL); // INS8250AV
WD37C65C(config, "fdc", 16_MHz_XTAL, 9.6_MHz_XTAL); // WD37C65BJM
NSCSI_BUS(config, "scsi");
NSCSI_CONNECTOR(config, "scsi:0", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:1", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:2", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:3", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:4", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:5", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:6", default_scsi_devices, nullptr);
NSCSI_CONNECTOR(config, "scsi:7").option_set("ncr", NCR53C80).machine_config([this] (device_t *device) {
downcast<ncr5380n_device &>(*device).drq_handler().set(m_maincpu, FUNC(v40_device::dreq_w<3>));
});
}
ROM_START(lbpc)
ROM_REGION(0x8000, "bios", 0)
ROM_LOAD("lbpc-bio.rom", 0x0000, 0x8000, CRC(47bddf8b) SHA1(8a04fe34502f9f3bfe1e233762bbd5bbdd1c455d)) // "03/08/89"
ROM_END
COMP(1989, lbpc, 0, 0, lbpc, lbpc, lbpc_state, empty_init, "Ampro Computers", "Little Board/PC", MACHINE_IS_SKELETON)

3
src/mame/mame.lst
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@ -18675,6 +18675,9 @@ lb186 // Ampro Little Board/186
@source:lbeach.cpp
lbeach // (c) 1979 Olympia / Seletron
@source:lbpc.cpp
lbpc // Ampro Little Board/PC
@source:lc80.cpp
lc80 //
lc80_2 //

1
src/mame/mess.flt
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@ -426,6 +426,7 @@ ktm3.cpp
kyocera.cpp
laser3k.cpp
lb186.cpp
lbpc.cpp
lc80.cpp
lcmate2.cpp
leapfrog_leappad.cpp