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mac: fix regressions (nw)

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This commit is contained in:
arbee 2015-12-06 11:01:46 -05:00
parent 693204a29c
commit 3afd02d896
2 changed files with 47 additions and 1 deletions
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1
src/mame/includes/mac.h
View File

@ -257,6 +257,7 @@ public:
emu_timer *m_overlay_timeout;
TIMER_CALLBACK_MEMBER(overlay_timeout_func);
DECLARE_READ32_MEMBER(rom_switch_r);
#ifndef MAC_USE_EMULATED_KBD
/* used to store the reply to most keyboard commands */

47
src/mame/machine/mac.cpp
View File

@ -347,6 +347,9 @@ void mac_state::v8_resize()
if (is_rom)
{
mac_install_memory(0x00000000, memory_size-1, memory_size, memory_data, is_rom, "bank1");
// install catcher in place of ROM that will detect the first access to ROM in its real location
m_maincpu->space(AS_PROGRAM).install_read_handler(0xa00000, 0xafffff, read32_delegate(FUNC(mac_state::rom_switch_r), this), 0xffffffff);
}
else
{
@ -354,6 +357,11 @@ void mac_state::v8_resize()
UINT32 onboard_amt, simm_amt, simm_size;
static const UINT32 simm_sizes[4] = { 0, 2*1024*1024, 4*1024*1024, 8*1024*1024 };
// re-install ROM in its normal place
size_t rom_mask = memregion("bootrom")->bytes() - 1;
m_maincpu->space(AS_PROGRAM).install_read_bank(0xa00000, 0xafffff, rom_mask, 0, "bankR");
membank("bankR")->set_base((void *)memregion("bootrom")->base());
// force unmap of entire RAM region
space.unmap_write(0, 0x9fffff, 0x9fffff, 0);
@ -458,6 +466,17 @@ void mac_state::set_memory_overlay(int overlay)
else if ((m_model == MODEL_MAC_LC_III) || (m_model == MODEL_MAC_LC_III_PLUS) || (m_model >= MODEL_MAC_LC_475 && m_model <= MODEL_MAC_LC_580)) // up to 36 MB
{
mac_install_memory(0x00000000, memory_size-1, memory_size, memory_data, is_rom, "bank1");
if (is_rom)
{
m_maincpu->space(AS_PROGRAM).install_read_handler(0x40000000, 0x4fffffff, read32_delegate(FUNC(mac_state::rom_switch_r), this), 0xffffffff);
}
else
{
size_t rom_mask = memregion("bootrom")->bytes() - 1;
m_maincpu->space(AS_PROGRAM).install_read_bank(0x40000000, 0x4fffffff, rom_mask, 0, "bankR");
membank("bankR")->set_base((void *)memregion("bootrom")->base());
}
}
else if (m_model == MODEL_MAC_QUADRA_700)
{
@ -475,6 +494,21 @@ void mac_state::set_memory_overlay(int overlay)
}
}
READ32_MEMBER(mac_state::rom_switch_r)
{
offs_t ROM_size = memregion("bootrom")->bytes();
UINT32 *ROM_data = (UINT32 *)memregion("bootrom")->base();
// disable the overlay
if (m_overlay)
{
set_memory_overlay(0);
}
// printf("rom_switch_r: offset %08x ROM_size -1 = %08x, masked = %08x\n", offset, ROM_size-1, offset & ((ROM_size - 1)>>2));
return ROM_data[offset & ((ROM_size - 1)>>2)];
}
/*
@ -1912,7 +1946,18 @@ void mac_state::machine_reset()
if (m_overlay_timeout != (emu_timer *)nullptr)
{
m_overlay_timeout->adjust(m_maincpu->cycles_to_attotime(8));
if ((m_model == MODEL_MAC_LC_III) || (m_model == MODEL_MAC_LC_III_PLUS) || (m_model >= MODEL_MAC_LC_475 && m_model <= MODEL_MAC_LC_580)) // up to 36 MB
{
m_overlay_timeout->adjust(attotime::never);
}
else if (((m_model >= MODEL_MAC_LC) && (m_model <= MODEL_MAC_COLOR_CLASSIC) && ((m_model != MODEL_MAC_LC_III) && (m_model != MODEL_MAC_LC_III_PLUS))) || (m_model == MODEL_MAC_CLASSIC_II))
{
m_overlay_timeout->adjust(attotime::never);
}
else
{
m_overlay_timeout->adjust(m_maincpu->cycles_to_attotime(8));
}
}
/* setup videoram */