/***************************************************************************

	mc10.c

	TRS-80 Radio Shack MicroColor Computer

	Nate Woods

***************************************************************************/

#include "driver.h"
#include "cpu/m6800/m6800.h"
#include "vidhrdw/m6847.h"
#include "includes/mc10.h"
#include "devices/cassette.h"
#include "formats/coco_cas.h"
#include "inputx.h"


static ADDRESS_MAP_START( mc10_mem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0100, 0x3fff) AM_NOP		/* unused */
	AM_RANGE(0x4000, 0x4fff) AM_READWRITE(MRA8_RAM, mc10_ram_w)
//	AM_RANGE(0x5000, 0xbffe) AM_RAM		/* expansion RAM */
	AM_RANGE(0xbfff, 0xbfff) AM_READWRITE(mc10_bfff_r, mc10_bfff_w)
//	AM_RANGE(0xc000, 0xdfff) AM_ROM		/* expansion ROM */
	AM_RANGE(0xe000, 0xffff) AM_ROM		/* ROM */
ADDRESS_MAP_END

static ADDRESS_MAP_START( mc10_io, ADDRESS_SPACE_IO, 8 )
	AM_RANGE(M6803_PORT1, M6803_PORT1) AM_READWRITE(mc10_port1_r, mc10_port1_w)
	AM_RANGE(M6803_PORT2, M6803_PORT2) AM_READWRITE(mc10_port2_r, mc10_port2_w)
ADDRESS_MAP_END

/* MC-10 keyboard

	   PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7
  PA6: Ctl N/c Brk N/c N/c N/c N/c Shift
  PA5: 8   9   :   ;   ,   -   .   /
  PA4: 0   1   2   3   4   5   6   7
  PA3: X   Y   Z   N/c N/c N/c Ent Space
  PA2: P   Q   R   S   T   U   V   W
  PA1: H   I   J   K   L   M   N   O
  PA0: @   A   B   C   D   E   F   G
 */
INPUT_PORTS_START( mc10 )
	PORT_START /* KEY ROW 0 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR('@')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')

	PORT_START /* KEY ROW 1 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')

	PORT_START /* KEY ROW 2 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')

	PORT_START /* KEY ROW 3 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
	PORT_BIT(0x38, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(10)

	PORT_START /* KEY ROW 4 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1  !") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2  \"") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3  #") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4  $") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5  %") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6  &") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7  '") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')

	PORT_START /* KEY ROW 5 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8  (") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9  )") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(":  *") PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR('*')
	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(";  +") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(';') PORT_CHAR('+')
	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(",  <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
	PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-  =") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
	PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(".  >") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("/  ?") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')

	PORT_START /* KEY ROW 6 */
	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CONTROL") PORT_CODE(KEYCODE_LCONTROL)
	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BREAK") PORT_CODE(KEYCODE_END) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
	PORT_BIT(0x78, IP_ACTIVE_LOW, IPT_UNUSED)
	PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)

	PORT_START /* 7 */
	PORT_DIPNAME( 0x80, 0x00, "16K RAM module" )
	PORT_DIPSETTING(	0x00, DEF_STR( No ))
	PORT_DIPSETTING(	0x80, DEF_STR( Yes ))
	PORT_DIPNAME( 0x40, 0x00, "DOS extension" )
	PORT_DIPSETTING(	0x00, DEF_STR( No ))
	PORT_DIPSETTING(	0x40, DEF_STR( Yes ))
	PORT_BIT(	  0x3c, 0x3c, IPT_UNUSED )
	PORT_DIPNAME( 0x03, 0x01, "Artifacting" )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x01, "Red" )
	PORT_DIPSETTING(    0x02, "Blue" )

INPUT_PORTS_END



static MACHINE_DRIVER_START( mc10 )
	/* basic machine hardware */
	MDRV_CPU_ADD_TAG("main", M6803, 894886)        /* 0,894886 Mhz */
	MDRV_CPU_PROGRAM_MAP(mc10_mem, 0)
	MDRV_CPU_IO_MAP(mc10_io, 0)
	MDRV_CPU_VBLANK_INT(m6847_vh_interrupt, M6847_INTERRUPTS_PER_FRAME)
	MDRV_FRAMES_PER_SECOND(60)
	MDRV_VBLANK_DURATION(0)

	/* video hardware */
	MDRV_M6847_NTSC( mc10 )

	/* sound hardware */
	MDRV_SPEAKER_STANDARD_MONO("mono")

	MDRV_SOUND_ADD(DAC, 0)
	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MACHINE_DRIVER_END

ROM_START(mc10)
	ROM_REGION(0x10000,REGION_CPU1,0)
	ROM_LOAD("mc10.rom", 0xE000, 0x2000, CRC(11fda97e) SHA1(4afff2b4c120334481aab7b02c3552bf76f1bc43))
ROM_END

static void mc10_cassette_getinfo(struct IODevice *dev)
{
	/* cassette */
	cassette_device_getinfo(dev, coco_cassette_formats, NULL,
		CASSETTE_PLAY);
	dev->count = 1;
}

SYSTEM_CONFIG_START(mc10)
	CONFIG_DEVICE( mc10_cassette_getinfo )
SYSTEM_CONFIG_END

/*	  YEAR	NAME	  PARENT	COMPAT	MACHINE   INPUT 	INIT	  CONFIG   COMPANY               FULLNAME */
COMP( 1983, mc10,     0,		0,		mc10,     mc10,     0,        mc10,    "Tandy Radio Shack",  "MC-10" )

