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(mess) hdc: xenix 8086 hates this so isolate it (nw)

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This commit is contained in:
cracyc 2014-10-27 09:37:57 -05:00
parent 88d9135bac
commit 1e49bea0a5
3 changed files with 30 additions and 2 deletions
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16
src/emu/bus/isa/hdc.c
View File

@ -149,6 +149,7 @@ INPUT_PORTS_END
//**************************************************************************
const device_type ISA8_HDC = &device_creator<isa8_hdc_device>;
const device_type ISA8_HDC_EC1841 = &device_creator<isa8_hdc_ec1841_device>;
//-------------------------------------------------
// machine_config_additions - device-specific
@ -190,6 +191,19 @@ isa8_hdc_device::isa8_hdc_device(const machine_config &mconfig, const char *tag,
device_t(mconfig, ISA8_HDC, "Fixed Disk Controller Card", tag, owner, clock, "hdc", __FILE__),
device_isa8_card_interface(mconfig, *this)
{
m_type = STANDARD;
}
isa8_hdc_device::isa8_hdc_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
device_t(mconfig, type, name, tag, owner, clock, shortname, source),
device_isa8_card_interface(mconfig, *this)
{
}
isa8_hdc_ec1841_device::isa8_hdc_ec1841_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
isa8_hdc_device( mconfig, ISA8_HDC_EC1841, "EC1841 HDC", tag, owner, clock, "hdc_ec1841", __FILE__)
{
m_type = EC1841;
}
//-------------------------------------------------
@ -750,7 +764,7 @@ void isa8_hdc_device::pc_hdc_data_w(int data)
*buffer_ptr++ = data;
// XXX ec1841 wants this
if (buffer[0] == CMD_SETPARAM && data_cnt == 9) {
if (buffer[0] == CMD_SETPARAM && data_cnt == 9 && (m_type == EC1841)) {
status &= ~STA_READY;
} else {
status |= STA_READY;

14
src/emu/bus/isa/hdc.h
View File

@ -25,6 +25,7 @@ class isa8_hdc_device :
public:
// construction/destruction
isa8_hdc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
isa8_hdc_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
@ -89,6 +90,12 @@ protected:
void get_drive();
void get_chsn();
int test_ready();
enum {
STANDARD,
EC1841
};
int m_type;
public:
void hdc_command();
void pc_hdc_data_w(int data);
@ -101,7 +108,14 @@ public:
};
class isa8_hdc_ec1841_device : public isa8_hdc_device
{
public:
isa8_hdc_ec1841_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};
// device type definition
extern const device_type ISA8_HDC;
extern const device_type ISA8_HDC_EC1841;
#endif /* ISA_HDC_H */

2
src/emu/bus/isa/xsu_cards.c
View File

@ -48,7 +48,7 @@ SLOT_INTERFACE_START( ec184x_isa8_cards )
SLOT_INTERFACE("ec1841.0004", ISA8_EC1841_0004) // BSC-like serial ports + parallel port
*/
SLOT_INTERFACE("mda", ISA8_MDA)
SLOT_INTERFACE("hdc", ISA8_HDC)
SLOT_INTERFACE("hdc", ISA8_HDC_EC1841)
SLOT_INTERFACE("pccom", ISA8_COM)
SLOT_INTERFACE("pclpt", ISA8_LPT)
SLOT_INTERFACE("xtide", ISA8_XTIDE)