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author Robbbert <Robbbert@users.noreply.github.com>2017-12-10 03:45:11 +1100
committer Robbbert <Robbbert@users.noreply.github.com>2017-12-10 03:45:11 +1100
commite4388838f44e0f7914fe1cac09e1769eb6282fd3 (patch)
tree307ca0c7967475cc965d701b8ae089bb50a7380b /src/mame/drivers/cortex.cpp
parentef2238d40d1114ad3ac220542bf1a68a3e2f9976 (diff)
(nw) cortex : keyboard working
Diffstat (limited to 'src/mame/drivers/cortex.cpp')
-rw-r--r--src/mame/drivers/cortex.cpp107
1 files changed, 83 insertions, 24 deletions
diff --git a/src/mame/drivers/cortex.cpp b/src/mame/drivers/cortex.cpp
index c4e87619bd7..cc5f5daea2b 100644
--- a/src/mame/drivers/cortex.cpp
+++ b/src/mame/drivers/cortex.cpp
@@ -2,23 +2,39 @@
// copyright-holders:Robbbert
/***************************************************************************
- Powertran Cortex
-
- 2012-04-20 Skeleton driver.
-
- ftp://ftp.whtech.com/Powertran Cortex/
- http://www.powertrancortex.com/index.html
-
- Uses Texas Instruments parts and similar to other TI computers.
- It was designed by TI engineers, so it may perhaps be a clone
- of another TI or the Geneve.
-
- Chips:
- TMS9995 - CPU
- TMS9929 - Video
- TMS9911 - DMA to floppy
- TMS9909 - Floppy Disk Controller
- AY-5-2376 - Keyboard controller
+Powertran Cortex
+
+2012-04-20 Skeleton driver.
+
+ftp://ftp.whtech.com/Powertran Cortex/
+http://www.powertrancortex.com/index.html
+
+Uses Texas Instruments parts and similar to other TI computers.
+It was designed by TI engineers, so it may perhaps be a clone
+of another TI or the Geneve.
+
+Chips:
+TMS9995 - CPU
+TMS9929 - Video
+TMS9911 - DMA to floppy (not emulated)
+TMS9909 - Floppy Disk Controller (not emulated)
+TMS9902 - UART (x2) (not usable with rs232.h)
+AY-5-2376 - Keyboard controller
+
+ToDo:
+- All input causes an error message
+- Screen corrupts when scrolling
+- Unemulated devices
+- Keyboard to use AY device
+- Banking
+- Memory manager device
+- Various CRU I/O
+
+Note that the MAME implementation of CRU addresses is not the same as real
+hardware. For writing, MAME uses the correct address (R12/2 + offset), with
+the bit (0 or 1), being in 'data'. However, for reading, 8 CRU bits are
+packed into a single address-byte (CRU 0 = bit 0, etc). So the address is
+(R12/2 + offset) >> 3.
****************************************************************************/
@@ -27,6 +43,8 @@
#include "cpu/tms9900/tms9995.h"
#include "machine/74259.h"
#include "video/tms9928a.h"
+//#include "machine/tms9902.h"
+#include "machine/keyboard.h"
class cortex_state : public driver_device
{
@@ -37,7 +55,14 @@ public:
, m_p_ram(*this, "ram")
{ }
+ void kbd_put(u8 data);
+ DECLARE_WRITE_LINE_MEMBER(keyboard_ack_w);
+ DECLARE_READ8_MEMBER(pio_r);
+ DECLARE_READ8_MEMBER(keyboard_r);
+
private:
+ bool m_cru0005;
+ uint8_t m_term_data;
virtual void machine_reset() override;
required_device<tms9995_device> m_maincpu;
required_shared_ptr<uint8_t> m_p_ram;
@@ -53,11 +78,13 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( io_map, AS_IO, 8, cortex_state )
ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0030) AM_DEVWRITE("control", ls259_device, write_a0)
- //AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0020) AM_READ(pio_r)
- //AM_RANGE(0x0010, 0x001f) AM_MIRROR(0x0020) AM_READ(keyboard_r)
- //AM_RANGE(0x0080, 0x00bf) AM_READWRITE(rs232_r,rs232_w)
- //AM_RANGE(0x0180, 0x01bf) AM_READWRITE(cass_r,cass_w)
+ AM_RANGE(0x0000, 0x0007) AM_MIRROR(0x18) AM_DEVWRITE("control", ls259_device, write_d0)
+ AM_RANGE(0x0000, 0x0000) AM_READ(pio_r)
+ AM_RANGE(0x0001, 0x0001) AM_READ(keyboard_r)
+ // read ranges are incorrect - should be 1/8th of current values.
+ //AM_RANGE(0x0080, 0x00bf) AM_DEVREADWRITE("uart1", tms9902_device, cruread, cruwrite) // RS232
+ //AM_RANGE(0x0180, 0x01bf) AM_DEVREADWRITE("uart2", tms9902_device, cruread, cruwrite) // Cassette
+ //AM_RANGE(0x01c0, 0x01ff) // DMA controller - TMS9911
//AM_RANGE(0x0800, 0x080f) AM_WRITE(cent_data_w)
//AM_RANGE(0x0810, 0x0811) AM_WRITE(cent_strobe_w)
//AM_RANGE(0x0812, 0x0813) AM_READ(cent_stat_r)
@@ -69,9 +96,35 @@ ADDRESS_MAP_END
static INPUT_PORTS_START( cortex )
INPUT_PORTS_END
+READ8_MEMBER( cortex_state::pio_r )
+{
+ return (m_cru0005 ? 0x20 : 0) | 0xdf;
+}
+
+READ8_MEMBER( cortex_state::keyboard_r )
+{
+ return m_term_data;
+}
+
+WRITE_LINE_MEMBER( cortex_state::keyboard_ack_w )
+{
+ if (!state)
+ {
+ m_maincpu->set_input_line(INT_9995_INT4, CLEAR_LINE);
+ m_cru0005 = 1;
+ }
+}
+
+void cortex_state::kbd_put(u8 data)
+{
+ m_term_data = data;
+ m_cru0005 = 0;
+ m_maincpu->set_input_line(INT_9995_INT4, ASSERT_LINE);
+}
void cortex_state::machine_reset()
{
+ m_cru0005 = 1;
uint8_t* ROM = memregion("maincpu")->base();
memcpy(m_p_ram, ROM, 0x6000);
m_maincpu->ready_line(ASSERT_LINE);
@@ -82,11 +135,11 @@ static MACHINE_CONFIG_START( cortex )
/* TMS9995 CPU @ 12.0 MHz */
// Standard variant, no overflow int
// No lines connected yet
- MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, mem_map, io_map)
+ MCFG_TMS99xx_ADD("maincpu", TMS9995, XTAL_12MHz, mem_map, io_map)
MCFG_DEVICE_ADD("control", LS259, 0) // IC64
//MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(WRITELINE(cortex_state, basic_led_w))
- //MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w))
+ MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w))
//MCFG_ADDRESSABLE_LATCH_Q2_OUT_CB(WRITELINE(cortex_state, ebus_int_ack_w))
//MCFG_ADDRESSABLE_LATCH_Q3_OUT_CB(WRITELINE(cortex_state, ebus_to_en_w))
//MCFG_ADDRESSABLE_LATCH_Q4_OUT_CB(WRITELINE(cortex_state, disk_size_w))
@@ -98,6 +151,12 @@ static MACHINE_CONFIG_START( cortex )
MCFG_TMS9928A_VRAM_SIZE(0x4000)
MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" )
MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update )
+
+ MCFG_DEVICE_ADD("keyboard", GENERIC_KEYBOARD, 0)
+ MCFG_GENERIC_KEYBOARD_CB(PUT(cortex_state, kbd_put))
+
+ //MCFG_DEVICE_ADD("uart1", TMS9902, XTAL_12MHz / 4)
+ //MCFG_DEVICE_ADD("uart2", TMS9902, XTAL_12MHz / 4)
MACHINE_CONFIG_END
/* ROM definition */