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pbo: Map a few more registers

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This commit is contained in:
AJR 2021-05-22 16:36:02 -04:00
parent b78991fc83
commit 6d818ea948
1 changed files with 20 additions and 5 deletions
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25
src/mame/drivers/philipsbo.cpp
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@ -12,6 +12,7 @@
#include "imagedev/floppy.h"
#include "machine/am79c90.h"
#include "machine/hd63450.h"
#include "machine/mc68681.h"
#include "machine/ncr5380n.h"
#include "machine/nscsi_bus.h"
#include "machine/wd_fdc.h"
@ -69,7 +70,9 @@ protected:
void fdc_irq_w(int state);
void scc_irq_w(int state);
void net_irq_w(int state);
void floppy_select_w(uint8_t data);
uint8_t fa0101_read();
uint8_t net_fe00e1_read();
};
void pbo_state::main_map(address_map &map)
@ -77,11 +80,9 @@ void pbo_state::main_map(address_map &map)
map(0x000000, 0x07ffff).ram().share(m_main_ram_share);
map(0x080000, 0xbfffff).rw(FUNC(pbo_state::berr_r), FUNC(pbo_state::berr_w));
map(0xf80000, 0xf8ffff).rom().region("maincpu", 0);
map(0xfa0000, 0xfa0001).rw(m_fdc, FUNC(mb8877_device::status_r), FUNC(mb8877_device::cmd_w)).umask16(0x00ff);
map(0xfa0030, 0xfa0031).rw(m_scc, FUNC(scc85c30_device::cb_r), FUNC(scc85c30_device::cb_w)).umask16(0x00ff);
map(0xfa0032, 0xfa0033).rw(m_scc, FUNC(scc85c30_device::db_r), FUNC(scc85c30_device::db_w)).umask16(0x00ff);
map(0xfa0034, 0xfa0035).rw(m_scc, FUNC(scc85c30_device::ca_r), FUNC(scc85c30_device::ca_w)).umask16(0x00ff);
map(0xfa0036, 0xfa0037).rw(m_scc, FUNC(scc85c30_device::da_r), FUNC(scc85c30_device::da_w)).umask16(0x00ff);
map(0xfa0000, 0xfa0007).rw(m_fdc, FUNC(mb8877_device::read), FUNC(mb8877_device::write)).umask16(0x00ff);
map(0xfa0011, 0xfa0011).w(FUNC(pbo_state::floppy_select_w));
map(0xfa0030, 0xfa0037).rw(m_scc, FUNC(scc85c30_device::ab_dc_r), FUNC(scc85c30_device::ab_dc_w)).umask16(0x00ff);
map(0xfa8400, 0xfa840f).rw(m_hdc, FUNC(ncr5380n_device::read), FUNC(ncr5380n_device::write)).umask16(0x00ff);
map(0xfa0100, 0xfa0101).r(FUNC(pbo_state::fa0101_read)).umask16(0x00ff);
}
@ -91,6 +92,8 @@ void pbo_state::net_map(address_map &map)
map(0x000000, 0x000fff).ram().share(m_net_ram_share); // Unknown RAM size
map(0xf00000, 0xf1ffff).ram();
map(0xf80000, 0xf83fff).rom().region("netcpu", 0);
map(0xfe00e1, 0xfe00e1).r(FUNC(pbo_state::net_fe00e1_read));
map(0xfe0100, 0xfe011f).rw("duart", FUNC(mc68681_device::read), FUNC(mc68681_device::write)).umask16(0x00ff);
}
uint16_t pbo_state::berr_r(offs_t offset)
@ -140,6 +143,11 @@ void pbo_state::net_irq_w(int state)
LOG("LANCE IRQ: %d\n", state);
}
void pbo_state::floppy_select_w(uint8_t data)
{
LOG("Floppy select: %02X\n", data);
}
// It's unclear what hardware this location corresponds to on the actual board.
// If it's unmapped, which returns 0 by default, the system hangs with very little
// meaningful external access.
@ -150,6 +158,11 @@ uint8_t pbo_state::fa0101_read()
return 0x80;
}
uint8_t pbo_state::net_fe00e1_read()
{
return 0;
}
static INPUT_PORTS_START( pbo )
INPUT_PORTS_END
@ -239,6 +252,8 @@ void pbo_state::pbo(machine_config &config)
AM7990(config, m_lance);
m_lance->intr_out().set(FUNC(pbo_state::net_irq_w));
MC68681(config, "duart", 3'686'400);
}
ROM_START( pbo )