Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

capcom/alien.cpp: enable DRC

Browse Source
This commit is contained in:
angelosa 2023-08-26 23:19:36 +02:00
parent 6ab4888dfc
commit 2982b9bccb
1 changed files with 20 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/mame/capcom/alien.cpp
View File

@ -96,6 +96,7 @@ public:
alien_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_workram(*this, "workram")
, m_screen(*this, "screen")
, m_gpu(*this, "gpu")
// , m_vram(*this, "vram%d", 0U)
@ -119,6 +120,7 @@ private:
// devices
required_device<sh4_device> m_maincpu;
required_shared_ptr<u64> m_workram;
required_device<screen_device> m_screen;
required_device<mb86292_device> m_gpu;
required_device<ram_device> m_vram;
@ -155,14 +157,14 @@ void alien_state::alien_map(address_map &map)
map(0x04800000, 0x04800000).r(FUNC(alien_state::fpga_r));
map(0x04a00000, 0x04a00007).nopw(); // FPGA config
map(0x08000000, 0x08000007).portr("DSW");
map(0x0c000000, 0x0cffffff).ram(); // main RAM
map(0x0c000000, 0x0cffffff).ram().share("workram"); // main RAM
map(0x10000000, 0x107fffff).rw(m_vram, FUNC(ram_device::read), FUNC(ram_device::write)); // GPU 1 VRAM
map(0x11fc0000, 0x11ffffff).m(m_gpu, FUNC(mb86292_device::vregs_map)); // GPU 1 regs
// map(0x12000000, 0x127fffff).ram().share(m_vram[1]); // GPU 2 VRAM
// map(0x13fc0000, 0x13ffffff).ram().share("vregs2"); // GPU 2 regs
// pingu accesses the mirror
map(0x14000000, 0x1400000f).mirror(0x100000).lr32(
map(0x14000000, 0x1400000f).mirror(0x100000).lrw32(
NAME([this] (offs_t offset, u32 mem_mask) {
switch(offset)
{
@ -173,9 +175,11 @@ void alien_state::alien_map(address_map &map)
return (u32)0;
}
return 0xffffffff;
}),
NAME([this] (offs_t offset, u32 data, u32 mem_mask) {
// writing to 0x14000000: outputs
})
);
// writing to 0x14000000: outputs
//map(0x18000000, 0x1800000f).r(FUNC(alien_state::test_r)).nopw(); // Alien CF ATA, other games have it other way
// pingu ATA i/f, similar to konami/konamigs.cpp
@ -260,20 +264,8 @@ static INPUT_PORTS_START( alien )
PORT_DIPUNKNOWN_DIPLOC( 0x20000000, 0x20000000, "SW2:6" )
PORT_DIPUNKNOWN_DIPLOC( 0x40000000, 0x40000000, "SW2:7" )
PORT_DIPUNKNOWN_DIPLOC( 0x80000000, 0x80000000, "SW2:8" )
INPUT_PORTS_END
void alien_state::machine_start()
{
}
void alien_state::machine_reset()
{
//m_maincpu->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
m_sio_irq_state = false;
}
template <unsigned N> void alien_state::gpu_irq_w(int state)
{
// TODO: configured by FPGA
@ -293,13 +285,25 @@ void medalusion_devices(device_slot_interface &device)
device.option_add("cfcard", ATA_CF);
}
void alien_state::machine_start()
{
m_maincpu->sh2drc_set_options(SH2DRC_FASTEST_OPTIONS);
m_maincpu->sh2drc_add_fastram(0x0c000000, 0x0cffffff, 0, &m_workram[0]);
}
void alien_state::machine_reset()
{
//m_maincpu->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
m_sio_irq_state = false;
}
void alien_state::alien(machine_config &config)
{
/* basic machine hardware */
SH4LE(config, m_maincpu, MASTER_CLOCK); /* 200MHz */
m_maincpu->set_addrmap(AS_PROGRAM, &alien_state::alien_map);
m_maincpu->set_periodic_int(FUNC(alien_state::sio_irq_w), attotime::from_hz(60));
m_maincpu->set_force_no_drc(true);
// m_maincpu->set_force_no_drc(true);
// Configured as FCRAM 16MBit with 8MB / 64-bit data bus thru MMR register
RAM(config, m_vram);