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minor cleanup. nw.

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This commit is contained in:
Fabio Priuli 2013-03-25 16:09:57 +00:00
parent 4981a77485
commit c5987b9f4b
2 changed files with 9 additions and 15 deletions
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2
src/mame/includes/megadriv.h
View File

@ -62,6 +62,7 @@ public:
: driver_device(mconfig, type, tag),
m_maincpu(*this,"maincpu"),
m_z80snd(*this,"genesis_snd_z80"),
m_ymsnd(*this,"ymsnd"),
m_vdp(*this,"gen_vdp"),
m_32x(*this,"sega32x"),
m_segacd(*this,"segacd"),
@ -70,6 +71,7 @@ public:
{ }
required_device<cpu_device> m_maincpu;
optional_device<cpu_device> m_z80snd;
optional_device<device_t> m_ymsnd;
required_device<sega_genesis_vdp_device> m_vdp;
optional_device<sega_32x_device> m_32x;
optional_device<sega_segacd_device> m_segacd;

22
src/mame/machine/megadriv.c
View File

@ -63,11 +63,10 @@ WRITE8_MEMBER(md_base_state::megadriv_z80_z80_bank_w)
READ8_MEMBER(md_base_state::megadriv_68k_YM2612_read)
{
device_t *device = machine().device("ymsnd");
//mame_printf_debug("megadriv_68k_YM2612_read %02x %04x\n",offset,mem_mask);
if ((m_genz80.z80_has_bus == 0) && (m_genz80.z80_is_reset == 0))
{
return ym2612_r(device, space, offset);
return ym2612_r(m_ymsnd, space, offset);
}
else
{
@ -81,11 +80,10 @@ READ8_MEMBER(md_base_state::megadriv_68k_YM2612_read)
WRITE8_MEMBER(md_base_state::megadriv_68k_YM2612_write)
{
device_t *device = machine().device("ymsnd");
//mame_printf_debug("megadriv_68k_YM2612_write %02x %04x %04x\n",offset,data,mem_mask);
if ((m_genz80.z80_has_bus == 0) && (m_genz80.z80_is_reset == 0))
{
ym2612_w(device, space, offset, data);
ym2612_w(m_ymsnd, space, offset, data);
}
else
{
@ -429,7 +427,7 @@ WRITE16_MEMBER(md_base_state::megadrive_io_write_data_port_6button)
if (((m_megadrive_io_data_regs[portnum]&0x40)==0x00) && ((data&0x40) == 0x40))
{
m_io_stage[portnum]++;
m_io_timeout[portnum]->adjust(machine().device<cpu_device>("maincpu")->cycles_to_attotime(8192));
m_io_timeout[portnum]->adjust(m_maincpu->cycles_to_attotime(8192));
}
}
@ -630,7 +628,7 @@ TIMER_CALLBACK_MEMBER(md_base_state::megadriv_z80_run_state)
{
m_z80snd->reset();
m_z80snd->suspend(SUSPEND_REASON_HALT, 1);
machine().device("ymsnd")->reset();
m_ymsnd->reset();
}
else
{
@ -838,22 +836,16 @@ MACHINE_CONFIG_END
UINT32 md_base_state::screen_update_megadriv(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
sega_genesis_vdp_device *vdp = machine().device<sega_genesis_vdp_device>("gen_vdp"); // yuck
/* Copy our screen buffer here */
for (int y = cliprect.min_y; y <= cliprect.max_y; y++)
{
UINT32* desty = &bitmap.pix32(y, 0);
UINT16* srcy;
if (!vdp->m_use_alt_timing)
{
srcy = &vdp->m_render_bitmap->pix(y, 0);
}
if (!m_vdp->m_use_alt_timing)
srcy = &m_vdp->m_render_bitmap->pix(y, 0);
else
{
srcy = vdp->m_render_line;
}
srcy = m_vdp->m_render_line;
for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
{