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Merge pull request #14 from shattered/master

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mc1502: restore fdc support for newer hw revisions with bios 5.3x
This commit is contained in:
Miodrag Milanović 2014-10-26 19:28:47 +01:00
commit b1c7c0dc22
2 changed files with 23 additions and 31 deletions
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52
src/emu/bus/isa/mc1502_fdc.c
View File

@ -162,7 +162,21 @@ READ8_MEMBER( mc1502_fdc_device::mc1502_fdc_r )
{
case 0: data = mc1502_wd17xx_aux_r(); break;
case 8: data = mc1502_wd17xx_drq_r(); break;
case 10: data = mc1502_wd17xx_motor_r(); break;
case 10: data = mc1502_wd17xx_motor_r(); break;
}
return data;
}
READ8_MEMBER( mc1502_fdc_device::mc1502_fdcv2_r )
{
UINT8 data = 0xff;
switch( offset )
{
case 0: data = mc1502_wd17xx_aux_r(); break;
case 1: data = mc1502_wd17xx_motor_r(); break;
case 2: data = mc1502_wd17xx_drq_r(); break;
}
return data;
@ -187,18 +201,6 @@ mc1502_fdc_device::mc1502_fdc_device(const machine_config &mconfig, const char *
{
}
#if 0
AM_RANGE(0x004c, 0x004c) AM_READWRITE(mc1502_wd17xx_aux_r, mc1502_wd17xx_aux_w)
AM_RANGE(0x004d, 0x004d) AM_READ(mc1502_wd17xx_motor_r)
AM_RANGE(0x004e, 0x004e) AM_READ(mc1502_wd17xx_drq_r) // blocking read!
AM_RANGE(0x0048, 0x004b) AM_DEVREADWRITE("vg93", fd1793_t, read, write)
AM_RANGE(0x0100, 0x0100) AM_READWRITE(mc1502_wd17xx_aux_r, mc1502_wd17xx_aux_w)
AM_RANGE(0x0108, 0x0108) AM_READ(mc1502_wd17xx_drq_r) // blocking read!
AM_RANGE(0x010a, 0x010a) AM_READ(mc1502_wd17xx_motor_r)
AM_RANGE(0x010c, 0x010f) AM_DEVREADWRITE("vg93", fd1793_t, read, write)
#endif
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
@ -207,28 +209,18 @@ void mc1502_fdc_device::device_start()
{
set_isa_device();
// BIOS 5.0, 5.2
// BIOS 5.0-5.2x
m_isa->install_device(0x010c, 0x010f, 0, 0,
READ8_DEVICE_DELEGATE(m_fdc, fd1793_t, read),
WRITE8_DEVICE_DELEGATE(m_fdc, fd1793_t, write) );
m_isa->install_device(0x0100, 0x010b, 0, 0, read8_delegate( FUNC(mc1502_fdc_device::mc1502_fdc_r), this ), write8_delegate( FUNC(mc1502_fdc_device::mc1502_fdc_w), this ) );
// BIOS 5.31, 5.33
/*
m_isa->install_device(0x010c, 0x010f, 0, 0,
READ8_DEVICE_DELEGATE(m_fdc, fd1793_t, read),
WRITE8_DEVICE_DELEGATE(m_fdc, fd1793_t, write) );
m_isa->install_device(0x0100, 0x010b, 0, 0, read8_delegate( FUNC(mc1502_fdc_device::mc1502_fdc_r), this ), write8_delegate( FUNC(mc1502_fdc_device::mc1502_fdc_w), this ) );
*/
// BIOS 5.3x
m_isa->install_device(0x0048, 0x004b, 0, 0,
READ8_DEVICE_DELEGATE(m_fdc, fd1793_t, read),
WRITE8_DEVICE_DELEGATE(m_fdc, fd1793_t, write) );
m_isa->install_device(0x004c, 0x004f, 0, 0, read8_delegate( FUNC(mc1502_fdc_device::mc1502_fdcv2_r), this ), write8_delegate( FUNC(mc1502_fdc_device::mc1502_fdc_w), this ) );
motor_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(mc1502_fdc_device::motor_callback),this));
motor_on = 0;
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void mc1502_fdc_device::device_reset()
{
}

2
src/emu/bus/isa/mc1502_fdc.h
View File

@ -39,13 +39,13 @@ public:
TIMER_CALLBACK_MEMBER( motor_callback );
DECLARE_READ8_MEMBER(mc1502_fdc_r);
DECLARE_READ8_MEMBER(mc1502_fdcv2_r);
DECLARE_WRITE8_MEMBER(mc1502_fdc_w);
DECLARE_WRITE_LINE_MEMBER( mc1502_fdc_irq_drq );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
private:
required_device<fd1793_t> m_fdc;