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hp9845: cosmetic fixes to 9895-related source files

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This commit is contained in:
fulivi 2017-01-05 12:07:25 +01:00
parent 5a82972fe5
commit d83f35b382
2 changed files with 17 additions and 5 deletions
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6
src/devices/bus/ieee488/hp9895.cpp
View File

@ -6,6 +6,9 @@
HP9895 floppy disk drive
Reference manual:
HP 09895-90030, feb 81, 9895A Flexible Disc Memory Service Manual
*********************************************************************/
#include "hp9895.h"
@ -28,6 +31,7 @@ hp9895_device::hp9895_device(const machine_config &mconfig, const char *tag, dev
#if 0
ioport_constructor hp9895_device::device_input_ports() const
{
// TODO: inputs=HPIB address, "S" & "W" switches, "loop" pin
}
#endif
void hp9895_device::device_start()
@ -170,8 +174,8 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START(z80_io_map , AS_IO , 8 , hp9895_device)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
// TODO: TEMP!
AM_RANGE(0x10 , 0x17) AM_DEVWRITE("phi" , phi_device , reg8_w) AM_READ(phi_reg_r)
// TODO: 60-67 range
ADDRESS_MAP_END
static MACHINE_CONFIG_FRAGMENT(hp9895)

16
src/devices/machine/phi.cpp
View File

@ -19,6 +19,12 @@
* C1,C2,C3,C4,C5
* HP non-standard IDENTIFY sequence
Fun fact: PHI has no clock input, its FSMs are driven only by
changes in input signals and by a few internal monostables
Main reference for this ASIC:
HP 12009-90001, sep 82, HP12009A HP-IB Interface Reference Manual
*********************************************************************/
#include "emu.h"
@ -514,10 +520,12 @@ uint8_t phi_device::get_dio(void)
void phi_device::set_dio(uint8_t data)
{
LOG(("DIO=%02x\n" , data));
m_dio = data;
if (!m_loopback) {
m_dio_write_func(~data);
if (data != m_dio) {
LOG(("DIO=%02x\n" , data));
m_dio = data;
if (!m_loopback) {
m_dio_write_func(~data);
}
}
}