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GPIB fix for hp9k_3xx (#3580)

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* hp9k_3xx: fix GPIB address

fulivi figured out the the GPIB base address is actually
0x470000.

Signed-off-by: Sven Schnelle <svens@stackframe.org>

* hp9k_3xx: fix PTM6840

During GPIB debugging fulivi figured out that Clock 2 is
actually connected to the output of Timer 1, so that both
timers form a 16 bit timer.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
This commit is contained in:
Sven Schnelle 2018-05-17 22:17:13 +02:00 committed by R. Belmont
parent bf064046bd
commit a660b46f8d
1 changed files with 9 additions and 5 deletions
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14
src/mame/drivers/hp9k_3xx.cpp
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@ -45,7 +45,7 @@
RTC_DATA: 0x420001
RTC_CMD: 0x420003
HIL: 0x428000
HPIB: 0x478000
HPIB: 0x470000
KBDNMIST: 0x478005
DMA: 0x500000
FRAMEBUF: 0x560000
@ -201,12 +201,11 @@ void hp9k3xx_state::hp9k3xx_common(address_map &map)
map(0x00000000, 0x0001ffff).rom().region("maincpu", 0).w(this, FUNC(hp9k3xx_state::led_w)); // writes to 1fffc are the LED
map(0x00428000, 0x00428003).rw(m_iocpu, FUNC(upi41_cpu_device::upi41_master_r), FUNC(upi41_cpu_device::upi41_master_w)).umask32(0x00ff00ff);
map(0x00478000, 0x0047ffff).rw(this, FUNC(hp9k3xx_state::gpib_r), FUNC(hp9k3xx_state::gpib_w)).umask16(0x00ff);
map(0x00470000, 0x0047ffff).rw(this, FUNC(hp9k3xx_state::gpib_r), FUNC(hp9k3xx_state::gpib_w)).umask16(0x00ff);
map(0x005f8000, 0x005f800f).rw(PTM6840_TAG, FUNC(ptm6840_device::read), FUNC(ptm6840_device::write)).umask32(0x00ff00ff);
map(0x005f4000, 0x005f400f).ram(); // somehow coprocessor related - bootrom crashes if not present
map(0x00474000, 0x00474fff).ram(); // unknown
}
@ -216,7 +215,7 @@ void hp9k3xx_state::hp9k310_map(address_map &map)
map(0x000000, 0x01ffff).rom().region("maincpu", 0).nopw(); // writes to 1fffc are the LED
map(0x428000, 0x428003).rw(m_iocpu, FUNC(upi41_cpu_device::upi41_master_r), FUNC(upi41_cpu_device::upi41_master_w)).umask16(0x00ff);
map(0x478000, 0x47800f).rw(this, FUNC(hp9k3xx_state::gpib_r), FUNC(hp9k3xx_state::gpib_w)).umask16(0x00ff);
map(0x470000, 0x47800f).rw(this, FUNC(hp9k3xx_state::gpib_r), FUNC(hp9k3xx_state::gpib_w)).umask16(0x00ff);
map(0x510000, 0x510003).rw(this, FUNC(hp9k3xx_state::buserror16_r), FUNC(hp9k3xx_state::buserror16_w)); // no "Alpha display"
map(0x538000, 0x538003).rw(this, FUNC(hp9k3xx_state::buserror16_r), FUNC(hp9k3xx_state::buserror16_w)); // no "Graphics"
@ -319,6 +318,8 @@ WRITE_LINE_MEMBER(hp9k3xx_state::gpib_irq)
WRITE8_MEMBER(hp9k3xx_state::gpib_w)
{
offset &= 0xf;
if (offset >= 0x08) {
m_tms9914->reg8_w(space, offset & 0x07, data);
return;
@ -330,6 +331,8 @@ READ8_MEMBER(hp9k3xx_state::gpib_r)
{
uint8_t data = 0xff;
offset &= 0xf;
if (offset >= 0x8) {
data = m_tms9914->reg8_r(space, offset & 0x07);
return data;
@ -452,7 +455,8 @@ MACHINE_CONFIG_START(hp9k3xx_state::hp9k310)
MCFG_HP_HIL_SLOT_ADD(MLC_TAG, "hil1", hp_hil_devices, "hp_46021a")
MCFG_DEVICE_ADD(PTM6840_TAG, PTM6840, 250000) // from oscillator module next to the 6840
MCFG_PTM6840_EXTERNAL_CLOCKS(250000.0f, 250000.0f, 250000.0f)
MCFG_PTM6840_EXTERNAL_CLOCKS(250000.0f, 0.0f, 250000.0f)
MCFG_PTM6840_O3_CB(WRITELINE(PTM6840_TAG, ptm6840_device , set_c2))
SPEAKER(config, "mono").front_center();
MCFG_DEVICE_ADD(SN76494_TAG, SN76494, SN76494_CLOCK)