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(nw) cortex : keyboard working
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Robbbert
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commit
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@ -2,23 +2,39 @@
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// copyright-holders:Robbbert
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/***************************************************************************
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Powertran Cortex
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Powertran Cortex
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2012-04-20 Skeleton driver.
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2012-04-20 Skeleton driver.
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ftp://ftp.whtech.com/Powertran Cortex/
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http://www.powertrancortex.com/index.html
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ftp://ftp.whtech.com/Powertran Cortex/
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http://www.powertrancortex.com/index.html
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Uses Texas Instruments parts and similar to other TI computers.
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It was designed by TI engineers, so it may perhaps be a clone
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of another TI or the Geneve.
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Uses Texas Instruments parts and similar to other TI computers.
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It was designed by TI engineers, so it may perhaps be a clone
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of another TI or the Geneve.
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Chips:
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TMS9995 - CPU
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TMS9929 - Video
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TMS9911 - DMA to floppy
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TMS9909 - Floppy Disk Controller
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AY-5-2376 - Keyboard controller
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Chips:
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TMS9995 - CPU
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TMS9929 - Video
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TMS9911 - DMA to floppy (not emulated)
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TMS9909 - Floppy Disk Controller (not emulated)
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TMS9902 - UART (x2) (not usable with rs232.h)
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AY-5-2376 - Keyboard controller
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ToDo:
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- All input causes an error message
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- Screen corrupts when scrolling
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- Unemulated devices
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- Keyboard to use AY device
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- Banking
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- Memory manager device
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- Various CRU I/O
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Note that the MAME implementation of CRU addresses is not the same as real
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hardware. For writing, MAME uses the correct address (R12/2 + offset), with
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the bit (0 or 1), being in 'data'. However, for reading, 8 CRU bits are
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packed into a single address-byte (CRU 0 = bit 0, etc). So the address is
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(R12/2 + offset) >> 3.
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****************************************************************************/
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@ -27,6 +43,8 @@
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#include "cpu/tms9900/tms9995.h"
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#include "machine/74259.h"
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#include "video/tms9928a.h"
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//#include "machine/tms9902.h"
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#include "machine/keyboard.h"
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class cortex_state : public driver_device
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{
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@ -37,7 +55,14 @@ public:
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, m_p_ram(*this, "ram")
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{ }
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void kbd_put(u8 data);
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DECLARE_WRITE_LINE_MEMBER(keyboard_ack_w);
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DECLARE_READ8_MEMBER(pio_r);
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DECLARE_READ8_MEMBER(keyboard_r);
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private:
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bool m_cru0005;
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uint8_t m_term_data;
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virtual void machine_reset() override;
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required_device<tms9995_device> m_maincpu;
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required_shared_ptr<uint8_t> m_p_ram;
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@ -53,11 +78,13 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( io_map, AS_IO, 8, cortex_state )
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0030) AM_DEVWRITE("control", ls259_device, write_a0)
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//AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0020) AM_READ(pio_r)
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//AM_RANGE(0x0010, 0x001f) AM_MIRROR(0x0020) AM_READ(keyboard_r)
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//AM_RANGE(0x0080, 0x00bf) AM_READWRITE(rs232_r,rs232_w)
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//AM_RANGE(0x0180, 0x01bf) AM_READWRITE(cass_r,cass_w)
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AM_RANGE(0x0000, 0x0007) AM_MIRROR(0x18) AM_DEVWRITE("control", ls259_device, write_d0)
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AM_RANGE(0x0000, 0x0000) AM_READ(pio_r)
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AM_RANGE(0x0001, 0x0001) AM_READ(keyboard_r)
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// read ranges are incorrect - should be 1/8th of current values.
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//AM_RANGE(0x0080, 0x00bf) AM_DEVREADWRITE("uart1", tms9902_device, cruread, cruwrite) // RS232
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//AM_RANGE(0x0180, 0x01bf) AM_DEVREADWRITE("uart2", tms9902_device, cruread, cruwrite) // Cassette
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//AM_RANGE(0x01c0, 0x01ff) // DMA controller - TMS9911
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//AM_RANGE(0x0800, 0x080f) AM_WRITE(cent_data_w)
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//AM_RANGE(0x0810, 0x0811) AM_WRITE(cent_strobe_w)
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//AM_RANGE(0x0812, 0x0813) AM_READ(cent_stat_r)
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@ -69,9 +96,35 @@ ADDRESS_MAP_END
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static INPUT_PORTS_START( cortex )
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INPUT_PORTS_END
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READ8_MEMBER( cortex_state::pio_r )
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{
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return (m_cru0005 ? 0x20 : 0) | 0xdf;
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}
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READ8_MEMBER( cortex_state::keyboard_r )
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{
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return m_term_data;
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}
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WRITE_LINE_MEMBER( cortex_state::keyboard_ack_w )
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{
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if (!state)
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{
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m_maincpu->set_input_line(INT_9995_INT4, CLEAR_LINE);
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m_cru0005 = 1;
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}
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}
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void cortex_state::kbd_put(u8 data)
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{
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m_term_data = data;
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m_cru0005 = 0;
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m_maincpu->set_input_line(INT_9995_INT4, ASSERT_LINE);
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}
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void cortex_state::machine_reset()
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{
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m_cru0005 = 1;
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uint8_t* ROM = memregion("maincpu")->base();
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memcpy(m_p_ram, ROM, 0x6000);
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m_maincpu->ready_line(ASSERT_LINE);
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@ -82,11 +135,11 @@ static MACHINE_CONFIG_START( cortex )
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/* TMS9995 CPU @ 12.0 MHz */
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// Standard variant, no overflow int
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// No lines connected yet
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MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, mem_map, io_map)
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MCFG_TMS99xx_ADD("maincpu", TMS9995, XTAL_12MHz, mem_map, io_map)
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MCFG_DEVICE_ADD("control", LS259, 0) // IC64
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//MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(WRITELINE(cortex_state, basic_led_w))
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//MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w))
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MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w))
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//MCFG_ADDRESSABLE_LATCH_Q2_OUT_CB(WRITELINE(cortex_state, ebus_int_ack_w))
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//MCFG_ADDRESSABLE_LATCH_Q3_OUT_CB(WRITELINE(cortex_state, ebus_to_en_w))
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//MCFG_ADDRESSABLE_LATCH_Q4_OUT_CB(WRITELINE(cortex_state, disk_size_w))
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@ -98,6 +151,12 @@ static MACHINE_CONFIG_START( cortex )
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MCFG_TMS9928A_VRAM_SIZE(0x4000)
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MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" )
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MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update )
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MCFG_DEVICE_ADD("keyboard", GENERIC_KEYBOARD, 0)
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MCFG_GENERIC_KEYBOARD_CB(PUT(cortex_state, kbd_put))
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//MCFG_DEVICE_ADD("uart1", TMS9902, XTAL_12MHz / 4)
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//MCFG_DEVICE_ADD("uart2", TMS9902, XTAL_12MHz / 4)
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MACHINE_CONFIG_END
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/* ROM definition */
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