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More clean-ups

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This commit is contained in:
Angelo Salese 2013-01-14 19:19:01 +00:00
parent dc48d36904
commit a9c1da60de
1 changed files with 23 additions and 21 deletions
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44
src/mess/drivers/smc777.c
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@ -32,9 +32,15 @@ class smc777_state : public driver_device
public:
smc777_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_crtc(*this, "crtc"),
m_fdc(*this, "fdc"),
m_sn(*this, "sn1")
{ }
required_device<cpu_device> m_maincpu;
required_device<mc6845_device> m_crtc;
required_device<mb8876_device> m_fdc;
optional_device<sn76489a_device> m_sn;
UINT8 *m_ipl_rom;
@ -243,7 +249,7 @@ WRITE8_MEMBER(smc777_state::smc777_6845_w)
if(offset == 0)
{
m_addr_latch = data;
//mc6845_address_w(machine().device("crtc"), 0,data);
//mc6845_address_w(m_crtc, 0,data);
}
else
{
@ -254,7 +260,7 @@ WRITE8_MEMBER(smc777_state::smc777_6845_w)
else if(m_addr_latch == 0x0f)
m_cursor_addr = (m_cursor_addr & 0x3f00) | (data & 0xff);
//mc6845_register_w(machine().device("crtc"), 0,data);
//mc6845_register_w(m_crtc, 0,data);
}
}
@ -358,20 +364,18 @@ static void check_floppy_inserted(running_machine &machine)
READ8_MEMBER(smc777_state::smc777_fdc1_r)
{
device_t* dev = machine().device("fdc");
check_floppy_inserted(machine());
switch(offset)
{
case 0x00:
return wd17xx_status_r(dev,space, offset) ^ 0xff;
return wd17xx_status_r(m_fdc,space, offset) ^ 0xff;
case 0x01:
return wd17xx_track_r(dev,space, offset) ^ 0xff;
return wd17xx_track_r(m_fdc,space, offset) ^ 0xff;
case 0x02:
return wd17xx_sector_r(dev,space, offset) ^ 0xff;
return wd17xx_sector_r(m_fdc,space, offset) ^ 0xff;
case 0x03:
return wd17xx_data_r(dev,space, offset) ^ 0xff;
return wd17xx_data_r(m_fdc,space, offset) ^ 0xff;
case 0x04: //irq / drq status
//popmessage("%02x %02x\n",m_fdc_irq_flag,m_fdc_drq_flag);
@ -383,28 +387,26 @@ READ8_MEMBER(smc777_state::smc777_fdc1_r)
WRITE8_MEMBER(smc777_state::smc777_fdc1_w)
{
device_t* dev = machine().device("fdc");
check_floppy_inserted(machine());
switch(offset)
{
case 0x00:
wd17xx_command_w(dev,space, offset,data ^ 0xff);
wd17xx_command_w(m_fdc,space, offset,data ^ 0xff);
break;
case 0x01:
wd17xx_track_w(dev,space, offset,data ^ 0xff);
wd17xx_track_w(m_fdc,space, offset,data ^ 0xff);
break;
case 0x02:
wd17xx_sector_w(dev,space, offset,data ^ 0xff);
wd17xx_sector_w(m_fdc,space, offset,data ^ 0xff);
break;
case 0x03:
wd17xx_data_w(dev,space, offset,data ^ 0xff);
wd17xx_data_w(m_fdc,space, offset,data ^ 0xff);
break;
case 0x04:
// ---- xxxx select floppy drive (yes, 15 of them, A to P)
wd17xx_set_drive(dev,data & 0x01);
// wd17xx_set_side(dev,(data & 0x10)>>4);
wd17xx_set_drive(m_fdc,data & 0x01);
// wd17xx_set_side(m_fdc,(data & 0x10)>>4);
if(data & 0xf0)
printf("floppy access %02x\n",data);
break;
@ -955,11 +957,11 @@ static const gfx_layout smc777_charlayout =
void smc777_state::machine_start()
{
m_ipl_rom = memregion("ipl")->base();
m_work_ram = auto_alloc_array(machine(), UINT8, 0x10000);
m_vram = auto_alloc_array(machine(), UINT8, 0x800);
m_attr = auto_alloc_array(machine(), UINT8, 0x800);
m_gvram = auto_alloc_array(machine(), UINT8, 0x8000);
m_pcg = auto_alloc_array(machine(), UINT8, 0x800);
m_work_ram = auto_alloc_array_clear(machine(), UINT8, 0x10000);
m_vram = auto_alloc_array_clear(machine(), UINT8, 0x800);
m_attr = auto_alloc_array_clear(machine(), UINT8, 0x800);
m_gvram = auto_alloc_array_clear(machine(), UINT8, 0x8000);
m_pcg = auto_alloc_array_clear(machine(), UINT8, 0x800);
state_save_register_global_pointer(machine(), m_work_ram, 0x10000);
state_save_register_global_pointer(machine(), m_vram, 0x800);