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HFDC: Added dip switch "wait for HD" (later models)

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This commit is contained in:
Michael Zapf 2015-08-25 16:02:16 +02:00
parent 4809f28558
commit d8d1b5297f
2 changed files with 14 additions and 3 deletions
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14
src/emu/bus/ti99_peb/hfdc.c
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@ -350,10 +350,11 @@ WRITE8_MEMBER( myarc_hfdc_device::write )
7 6 5 4 3 2 1 0
+-----+-----+-----+-----+-----+-----+-----+-----+
| 0 | 0 | 0 | 0 | 0 | MON | DIP | IRQ |
| 0 | 0 | 0 | 0 | WAIT| MON*| DIP | IRQ |
+-----+-----+-----+-----+-----+-----+-----+-----+
MON = Motor on
WAIT = Wait for WDS1 to become ready
MON* = Motor on
DIP = DMA in progress
IRQ = Interrupt request
---
@ -375,7 +376,8 @@ READ8Z_MEMBER(myarc_hfdc_device::crureadz)
reply = 0;
if (m_irq == ASSERT_LINE) reply |= 0x01;
if (m_dip == ASSERT_LINE) reply |= 0x02;
if (m_motor_running) reply |= 0x04;
if (!m_motor_running) reply |= 0x04;
if (m_wait_for_hd1) reply |= 0x08;
}
*value = reply;
}
@ -888,6 +890,7 @@ void myarc_hfdc_device::device_reset()
}
m_cru_base = ioport("CRUHFDC")->read();
m_wait_for_hd1 = ioport("WAITHD1")->read();
// Resetting values
m_rom_page = 0;
@ -956,6 +959,11 @@ void myarc_hfdc_device::device_config_complete()
the drives 1 to 4 are renamed to DSK5-DSK8 (see [1] p. 7).
*/
INPUT_PORTS_START( ti99_hfdc )
PORT_START( "WAITHD1" )
PORT_DIPNAME( 0x01, 0x00, "HFDC Wait for HD1" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
PORT_START( "CRUHFDC" )
PORT_DIPNAME( 0x1f00, 0x1100, "HFDC CRU base" )
PORT_DIPSETTING( 0x1000, "1000" )

3
src/emu/bus/ti99_peb/hfdc.h
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@ -142,6 +142,9 @@ private:
// DMA in progress
bool m_dma_in_progress;
// Wait for HD. This was an addition in later cards.
bool m_wait_for_hd1;
// Device Service Routine ROM (firmware)
UINT8* m_dsrrom;