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mpu4plasma.cpp: Add SCC

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This commit is contained in:
AJR 2023-06-07 08:24:04 -04:00
parent c81ad7c73b
commit db65785771
1 changed files with 4 additions and 12 deletions
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16
src/mame/barcrest/mpu4plasma.cpp
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@ -10,6 +10,7 @@
#include "mpu4.h"
#include "cpu/m68000/m68000.h"
#include "machine/z80scc.h"
#include "emupal.h"
#include "screen.h"
@ -37,14 +38,6 @@ private:
required_shared_ptr<uint16_t> m_plasmaram;
required_device<palette_device> m_palette;
uint16_t mpu4plasma_unk_r()
{
return machine().rand();
}
void mpu4plasma_unk_w(uint16_t data)
{
}
uint32_t screen_update_mpu4plasma(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void mpu4plasma_map(address_map &map);
};
@ -58,8 +51,7 @@ void mpu4plasma_state::mpu4plasma_map(address_map &map)
// why does it test this much ram, just sloppy code expecting mirroring?
map(0x400000, 0x4fffff).ram().share("plasmaram");
// comms?
map(0xffff00, 0xffff01).r(FUNC(mpu4plasma_state::mpu4plasma_unk_r));
map(0xffff04, 0xffff05).w(FUNC(mpu4plasma_state::mpu4plasma_unk_w));
map(0xffff00, 0xffff07).rw("scc", FUNC(z80scc_device::ab_dc_r), FUNC(z80scc_device::ab_dc_w)).umask16(0x00ff);
}
uint32_t mpu4plasma_state::screen_update_mpu4plasma(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
@ -94,7 +86,8 @@ void mpu4plasma_state::mpu4plasma_f(machine_config &config)
mod2_f(config);
m68000_device &plasmacpu(M68000(config, "plasmacpu", 10000000));
plasmacpu.set_addrmap(AS_PROGRAM, &mpu4plasma_state::mpu4plasma_map);
plasmacpu.set_vblank_int("screen", FUNC(mpu4plasma_state::irq4_line_hold));
SCC8530N(config, "scc", 4915200).out_int_callback().set_inputline("plasmacpu", 4);
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
@ -110,7 +103,6 @@ void mpu4plasma_state::mpu4plasma_f(machine_config &config)
m_characteriser->set_cpu_tag("maincpu");
m_characteriser->set_allow_6809_cheat(true);
m_characteriser->set_lamp_table(nullptr);
}
// plasma v0.1