Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

tekram_dc820.cpp: Map the SCSI chips; FIFO test now passes but BMIC test fails (nw)

Browse Source
This commit is contained in:
AJR 2019-04-17 23:16:57 -04:00
parent 06fc72cdcb
commit f3963ef41d
2 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/devices/bus/isa/tekram_dc820.cpp
View File

@ -64,17 +64,27 @@ void tekram_eisa_scsi_device::device_start()
void tekram_eisa_scsi_device::mpu_map(address_map &map)
{
map(0x00000, 0x0ffff).ram();
map(0x10040, 0x1005f).m("scsi:7:scsic", FUNC(ncr53cf94_device::map)).umask16(0xff00);
//map(0x10080, 0x10085).rw("bmic", FUNC(i82355_device::local_r), FUNC(i82355_device::local_w)).umask16(0x00ff);
map(0xf0000, 0xfffff).rom().region("firmware", 0);
}
void tekram_dc320b_device::mpu_map(address_map &map)
{
map(0x00000, 0x01fff).ram();
map(0x00000, 0x03fff).ram();
map(0x08000, 0x0801f).m("scsi:7:scsic", FUNC(ncr53cf94_device::map)).umask16(0x00ff);
//map(0x08080, 0x08085).rw("bmic", FUNC(i82355_device::local_r), FUNC(i82355_device::local_w)).umask16(0x00ff);
map(0xf0000, 0xfffff).rom().region("firmware", 0);
}
void tekram_dc820_device::mpu_map(address_map &map)
{
map(0x00000, 0x0ffff).ram();
map(0x10000, 0x1001f).m("scsi:7:scsic", FUNC(ncr53cf94_device::map)).umask16(0x00ff);
//map(0x10080, 0x10085).rw("bmic", FUNC(i82355_device::local_r), FUNC(i82355_device::local_w)).umask16(0x00ff);
map(0xf0000, 0xfffff).rom().region("firmware", 0);
}
static void tekram_scsi_devices(device_slot_interface &device)
{
device.option_add("harddisk", NSCSI_HARDDISK);
@ -114,7 +124,7 @@ void tekram_dc320b_device::device_add_mconfig(machine_config &config)
void tekram_dc320e_device::device_add_mconfig(machine_config &config)
{
I80186(config, m_mpu, 25'000'000); // verified for DC-320, but not DC-320E
I80186(config, m_mpu, 32'000'000); // clock guessed to be same as DC-820B due to identical firmware
m_mpu->set_addrmap(AS_PROGRAM, &tekram_dc320e_device::mpu_map);
//EEPROM_93C46_16BIT(config, m_eeprom);

3
src/devices/bus/isa/tekram_dc820.h
View File

@ -64,6 +64,9 @@ public:
protected:
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
void mpu_map(address_map &map);
};
class tekram_dc820b_device : public tekram_eisa_scsi_device