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konmedal: better screen display, ROM banking, start VROM readback [R. Belmont]

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This commit is contained in:
arbee 2017-02-13 23:09:37 -05:00
parent 7e527b494e
commit ff1c7e85fa
1 changed files with 55 additions and 8 deletions
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63
src/mame/drivers/konmedal.cpp
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@ -40,9 +40,14 @@ public:
required_device<k056832_device> m_k056832;
required_device<palette_device> m_palette;
required_device<ymz280b_device> m_ymz;
READ8_MEMBER(vram_r);
WRITE8_MEMBER(vram_w);
READ8_MEMBER(magic_r);
WRITE8_MEMBER(bankswitch_w);
private:
WRITE8_MEMBER(bankswitch_w);
u8 m_control;
public:
virtual void machine_start() override;
@ -53,6 +58,43 @@ public:
K056832_CB_MEMBER(tile_callback);
};
READ8_MEMBER(konmedal_state::vram_r)
{
if (m_control == 0xf)
{
if (offset & 1)
{
return m_k056832->ram_attr_lo_r(space, offset>>1);
}
else
{
return m_k056832->ram_code_lo_r(space, offset>>1);
}
}
else if (m_control == 0) // ROM readback
{
//return m_k056832->konmedal_rom_r(space, offset);
}
return 0;
}
WRITE8_MEMBER(konmedal_state::vram_w)
{
if (offset & 1)
{
m_k056832->ram_attr_lo_w(space, offset>>1, data);
return;
}
m_k056832->ram_code_lo_w(space, offset>>1, data);
}
READ8_MEMBER(konmedal_state::magic_r)
{
return 0xc1; // checked at 60f before reading a page of the VROM
}
K056832_CB_MEMBER(konmedal_state::tile_callback)
{
// *color = m_layer_colorbase[layer] + ((*color & 0x3c) << 2);
@ -87,18 +129,23 @@ INTERRUPT_GEN_MEMBER(konmedal_state::konmedal_interrupt)
WRITE8_MEMBER(konmedal_state::bankswitch_w)
{
// membank("bank1")->set_entry(data);
//printf("ROM bank %x (full %02x)\n", data>>4, data);
membank("bank1")->set_entry(data>>4);
m_control = data & 0xf;
}
static ADDRESS_MAP_START( medal_main, AS_PROGRAM, 8, konmedal_state )
AM_RANGE(0x0000, 0x9fff) AM_ROM AM_REGION("maincpu", 0)
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_REGION("maincpu", 0)
AM_RANGE(0x8000, 0x9fff) AM_ROMBANK("bank1")
AM_RANGE(0xa000, 0xafff) AM_RAM // work RAM?
AM_RANGE(0xb800, 0xbfff) AM_RAM // stack goes here
AM_RANGE(0xc000, 0xc03f) AM_DEVWRITE("k056832", k056832_device, write)
AM_RANGE(0xc400, 0xc400) AM_WRITE(bankswitch_w)
AM_RANGE(0xc500, 0xc500) AM_NOP // read to reset watchdog
AM_RANGE(0xc800, 0xc80f) AM_DEVWRITE("k056832", k056832_device, b_w)
AM_RANGE(0xc80f, 0xc80f) AM_READ(magic_r)
AM_RANGE(0xd000, 0xd001) AM_DEVREADWRITE("ymz", ymz280b_device, read, write)
AM_RANGE(0xe000, 0xe7ff) AM_DEVREADWRITE("k056832", k056832_device, ram_code_lo_r, ram_code_lo_w)
AM_RANGE(0xe800, 0xefff) AM_DEVREADWRITE("k056832", k056832_device, ram_code_hi_r, ram_code_hi_w)
AM_RANGE(0xe000, 0xffff) AM_READWRITE(vram_r, vram_w)
ADDRESS_MAP_END
static INPUT_PORTS_START( konmedal )
@ -106,8 +153,8 @@ INPUT_PORTS_END
void konmedal_state::machine_start()
{
// membank("bank1")->configure_entries(0, 0x20, memregion("maincpu")->base(), 0x2000);
// membank("bank1")->set_entry(0);
membank("bank1")->configure_entries(0, 0x10, memregion("maincpu")->base(), 0x2000);
membank("bank1")->set_entry(4);
}
void konmedal_state::machine_reset()
@ -126,7 +173,7 @@ static MACHINE_CONFIG_START( konmedal, konmedal_state )
MCFG_SCREEN_REFRESH_RATE(59.62) /* verified on pcb */
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(216, 504-1, 16, 240-1)
MCFG_SCREEN_VISIBLE_AREA(96, 416-1, 16, 240-1)
MCFG_SCREEN_UPDATE_DRIVER(konmedal_state, screen_update_konmedal)
MCFG_SCREEN_PALETTE("palette")