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tekigw: don't crash when hard disk is missing

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This commit is contained in:
Patrick Mackinlay 2021-05-19 10:27:18 +07:00
parent db98a0b858
commit 2b642fe458
1 changed files with 4 additions and 2 deletions
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6
src/mame/drivers/tekigw.cpp
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@ -69,6 +69,7 @@ public:
, m_fdd(*this, "fdc:%u:525dd", 0U) , m_fdd(*this, "fdc:%u:525dd", 0U)
//, m_dma(*this, "dma") //, m_dma(*this, "dma")
, m_hdc(*this, "hdc") , m_hdc(*this, "hdc")
, m_hdd(*this, "hdc:0")
, m_lan(*this, "lan") , m_lan(*this, "lan")
, m_led(*this, "led") , m_led(*this, "led")
{ {
@ -123,6 +124,7 @@ protected:
optional_device_array<floppy_image_device, 2> m_fdd; optional_device_array<floppy_image_device, 2> m_fdd;
//required_device<am9516a_device> m_dma; //required_device<am9516a_device> m_dma;
required_device<wd1010_device> m_hdc; required_device<wd1010_device> m_hdc;
required_device<harddisk_image_device> m_hdd;
required_device<i82586_device> m_lan; required_device<i82586_device> m_lan;
output_finder<> m_led; output_finder<> m_led;
@ -395,7 +397,7 @@ enum hcr_mask : u8
void tek6100_state::hcr_w(u8 data) void tek6100_state::hcr_w(u8 data)
{ {
m_hdc->drdy_w(bool(data & HCR_DRSEL)); m_hdc->drdy_w(m_hdd->exists() && bool(data & HCR_DRSEL));
m_hdc->brdy_w(bool(data & HCR_BFRDY)); m_hdc->brdy_w(bool(data & HCR_BFRDY));
if (!(data & HCR_BCCLR)) if (!(data & HCR_BCCLR))
@ -530,7 +532,7 @@ void tek6100_state::tek6130(machine_config &config)
m_hdc->out_data_callback().set(FUNC(tek6100_state::buf_w<u8>)); m_hdc->out_data_callback().set(FUNC(tek6100_state::buf_w<u8>));
m_hdc->out_bcr_callback().set([this](int state) { if (state) m_hdc_ptr = 0; }); m_hdc->out_bcr_callback().set([this](int state) { if (state) m_hdc_ptr = 0; });
HARDDISK(config, "hdc:0", 0); HARDDISK(config, m_hdd, 0);
I82586(config, m_lan, 16_MHz_XTAL / 2); I82586(config, m_lan, 16_MHz_XTAL / 2);
m_lan->set_addrmap(0, &tek6100_state::lan_map); m_lan->set_addrmap(0, &tek6100_state::lan_map);