isa_hdc: don't install ROM on ec1841 (its BIOS supports HDC natively) (nw)

2016-08-13 00:11:30 +03:00 · 2016-08-13 00:11:30 +03:00 · 75cbb7673e
commit 75cbb7673e
parent d7099a7d46
2 changed files with 2 additions and 1 deletions
--- a/src/devices/bus/isa/hdc.cpp
+++ b/src/devices/bus/isa/hdc.cpp
@ -957,7 +957,7 @@ void isa8_hdc_device::device_reset()
 {
 	dip = ioport("HDD")->read();

-	if (ioport("ROM")->read() == 1)
+	if (ioport("ROM")->read() == 1 && m_hdc->install_rom())
 		m_isa->install_rom(this, 0xc8000, 0xc9fff, "hdc", "hdc");
 }

--- a/src/devices/bus/isa/hdc.h
+++ b/src/devices/bus/isa/hdc.h
@ -50,6 +50,7 @@ public:
 	UINT8 status_r();
 	void set_ready();
 	UINT8 get_command() { return buffer[0]; }
+	bool install_rom() { return (m_type != EC1841); }

 protected:
 	// device-level overrides