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-rw-r--r--src/mess/drivers/hp64k.c467
1 files changed, 467 insertions, 0 deletions
diff --git a/src/mess/drivers/hp64k.c b/src/mess/drivers/hp64k.c
new file mode 100644
index 00000000000..641a7e30c88
--- /dev/null
+++ b/src/mess/drivers/hp64k.c
@@ -0,0 +1,467 @@
+// license:BSD-3-Clause
+// copyright-holders:F. Ulivi
+//
+// ***************************************
+// Driver for HP 64000 development system
+// ***************************************
+//
+// Documentation used for this driver:
+// [1] HP, manual 64100-90910, dec 83 rev. - Model 64100A mainframe service manual
+//
+// TODO:
+// - Slot selection mechanism & low 32KW RAM
+// - Periodic interrupt
+// - Beeper
+// - Various DIP switches
+// - Floppy I/F
+// - RS232 I/F
+
+#include "emu.h"
+#include "cpu/hphybrid/hphybrid.h"
+#include "video/i8275.h"
+
+#define BIT_MASK(n) (1U << (n))
+
+// Macros to clear/set single bits
+#define BIT_CLR(w , n) ((w) &= ~BIT_MASK(n))
+#define BIT_SET(w , n) ((w) |= BIT_MASK(n))
+
+class hp64k_state : public driver_device
+{
+public:
+ hp64k_state(const machine_config &mconfig, device_type type, const char *tag);
+
+ //virtual void driver_start();
+ //virtual void machine_start();
+ virtual void video_start();
+ virtual void machine_reset();
+
+ UINT8 hp64k_crtc_filter(UINT8 data);
+ DECLARE_WRITE16_MEMBER(hp64k_crtc_w);
+ DECLARE_WRITE_LINE_MEMBER(hp64k_crtc_drq_w);
+ DECLARE_WRITE_LINE_MEMBER(hp64k_crtc_vrtc_w);
+
+ I8275_DRAW_CHARACTER_MEMBER(crtc_display_pixels);
+
+ DECLARE_READ16_MEMBER(hp64k_rear_sw_r);
+
+ IRQ_CALLBACK_MEMBER(hp64k_irq_callback);
+ void hp64k_update_irl(void);
+ DECLARE_WRITE16_MEMBER(hp64k_irl_mask_w);
+
+ TIMER_DEVICE_CALLBACK_MEMBER(hp64k_kb_scan);
+ DECLARE_READ16_MEMBER(hp64k_kb_r);
+
+private:
+ required_device<hp_5061_3011_cpu_device> m_cpu;
+ required_device<i8275_device> m_crtc;
+ required_device<palette_device> m_palette;
+ required_ioport m_io_key0;
+ required_ioport m_io_key1;
+ required_ioport m_io_key2;
+ required_ioport m_io_key3;
+
+ // Character generator
+ const UINT8 *m_chargen;
+
+ UINT32 m_crtc_ptr;
+ bool m_crtc_drq;
+ bool m_vrtc;
+
+ // Interrupt handling
+ UINT8 m_irl_mask;
+ UINT8 m_irl_pending;
+
+ // State of keyboard
+ ioport_value m_kb_state[ 4 ];
+ UINT8 m_kb_row_col;
+ bool m_kb_scan_on;
+ bool m_kb_pressed;
+};
+
+static ADDRESS_MAP_START(cpu_mem_map , AS_PROGRAM , 16 , hp64k_state)
+ AM_RANGE(0x0000 , 0x3fff) AM_ROM
+ AM_RANGE(0x8000 , 0x8001) AM_WRITE(hp64k_crtc_w)
+ AM_RANGE(0x8002 , 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(cpu_io_map , AS_IO , 16 , hp64k_state)
+ // PA = 0, IC = [0..3]
+ // Keyboard input
+ AM_RANGE(HP_MAKE_IOADDR(0 , 0) , HP_MAKE_IOADDR(0 , 3)) AM_READ(hp64k_kb_r)
+ // PA = 7, IC = 2
+ // Rear-panel switches
+ AM_RANGE(HP_MAKE_IOADDR(7 , 2) , HP_MAKE_IOADDR(7 , 2)) AM_READ(hp64k_rear_sw_r)
+ // PA = 12, IC = [0..3]
+ // Interrupt mask
+ AM_RANGE(HP_MAKE_IOADDR(12 , 0) , HP_MAKE_IOADDR(12 , 3)) AM_WRITE(hp64k_irl_mask_w)
+ADDRESS_MAP_END
+
+hp64k_state::hp64k_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig , type , tag),
+ m_cpu(*this , "cpu"),
+ m_crtc(*this , "crtc"),
+ m_palette(*this , "palette"),
+ m_io_key0(*this , "KEY0"),
+ m_io_key1(*this , "KEY1"),
+ m_io_key2(*this , "KEY2"),
+ m_io_key3(*this , "KEY3")
+{
+}
+
+void hp64k_state::video_start()
+{
+ m_chargen = memregion("chargen")->base();
+}
+
+void hp64k_state::machine_reset()
+{
+ m_crtc_drq = false;
+ m_vrtc = false;
+ m_crtc_ptr = 0;
+ m_irl_mask = 0;
+ m_irl_pending = 0;
+ memset(&m_kb_state[ 0 ] , 0 , sizeof(m_kb_state));
+ m_kb_row_col = 0;
+ m_kb_scan_on = true;
+}
+
+UINT8 hp64k_state::hp64k_crtc_filter(UINT8 data)
+{
+ bool inv = (data & 0xe0) == 0xe0;
+
+ return inv ? (data & 0xf2) : data;
+}
+
+WRITE16_MEMBER(hp64k_state::hp64k_crtc_w)
+{
+ m_crtc->write(space , offset == 0 , hp64k_crtc_filter((UINT8)data));
+}
+
+WRITE_LINE_MEMBER(hp64k_state::hp64k_crtc_drq_w)
+{
+ bool crtc_drq = state != 0;
+ bool prev_crtc = m_crtc_drq;
+ m_crtc_drq = crtc_drq;
+
+ if (!prev_crtc && crtc_drq) {
+ address_space& prog_space = m_cpu->space(AS_PROGRAM);
+
+ UINT8 data = prog_space.read_byte(m_crtc_ptr);
+ m_crtc_ptr++;
+
+ m_crtc->dack_w(prog_space , 0 , hp64k_crtc_filter(data));
+ }
+}
+
+WRITE_LINE_MEMBER(hp64k_state::hp64k_crtc_vrtc_w)
+{
+ bool vrtc = state != 0;
+
+ if (!m_vrtc && vrtc) {
+ m_crtc_ptr = 0xf9f0 << 1;
+ }
+ m_vrtc = vrtc;
+}
+
+I8275_DRAW_CHARACTER_MEMBER(hp64k_state::crtc_display_pixels)
+{
+ const rgb_t *palette = m_palette->palette()->entry_list_raw();
+ UINT8 chargen_byte = m_chargen[ linecount | ((unsigned)charcode << 4) ];
+ bool lvid , livid;
+ UINT16 pixels_lvid , pixels_livid;
+ unsigned i;
+
+ if (vsp) {
+ pixels_lvid = pixels_livid = ~0;
+ } else if (lten) {
+ pixels_livid = ~0;
+ if (rvv) {
+ pixels_lvid = ~0;
+ } else {
+ pixels_lvid = 0;
+ }
+ } else if (rvv) {
+ pixels_lvid = ~0;
+ pixels_livid = (UINT16)chargen_byte << 1;
+ } else {
+ pixels_lvid = ~((UINT16)chargen_byte << 1);
+ pixels_livid = ~0;
+ }
+
+ for (i = 0; i < 9; i++) {
+ lvid = (pixels_lvid & (1U << (8 - i))) != 0;
+ livid = (pixels_livid & (1U << (8 - i))) != 0;
+
+ if (!lvid) {
+ // Normal brightness
+ bitmap.pix32(y , x + i) = palette[ 2 ];
+ } else if (livid) {
+ // Black
+ bitmap.pix32(y , x + i) = palette[ 0 ];
+ } else {
+ // Half brightness
+ bitmap.pix32(y , x + i) = palette[ 1 ];
+ }
+ }
+
+}
+
+READ16_MEMBER(hp64k_state::hp64k_rear_sw_r)
+{
+ // TEST
+ return ~0;
+}
+
+IRQ_CALLBACK_MEMBER(hp64k_state::hp64k_irq_callback)
+{
+ if (irqline == HPHYBRID_IRL) {
+ return 0xff00 | (m_irl_mask & m_irl_pending);
+ } else {
+ return ~0;
+ }
+}
+
+void hp64k_state::hp64k_update_irl(void)
+{
+ m_cpu->set_input_line(HPHYBRID_IRL , (m_irl_mask & m_irl_pending) != 0);
+}
+
+WRITE16_MEMBER(hp64k_state::hp64k_irl_mask_w)
+{
+ m_irl_mask = (UINT8)data;
+ hp64k_update_irl();
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(hp64k_state::hp64k_kb_scan)
+{
+ if (m_kb_scan_on) {
+ unsigned i;
+
+ ioport_value input[ 4 ];
+ input[ 0 ] = m_io_key0->read();
+ input[ 1 ] = m_io_key1->read();
+ input[ 2 ] = m_io_key2->read();
+ input[ 3 ] = m_io_key3->read();
+
+ for (i = 0; i < 128; i++) {
+ if (++m_kb_row_col >= 128) {
+ m_kb_row_col = 0;
+ }
+
+ ioport_value mask = BIT_MASK(m_kb_row_col & 0x1f);
+ unsigned idx = m_kb_row_col >> 5;
+
+ if ((input[ idx ] ^ m_kb_state[ idx ]) & mask) {
+ // key changed state
+ m_kb_state[ idx ] ^= mask;
+ m_kb_pressed = (m_kb_state[ idx ] & mask) != 0;
+ m_kb_scan_on = false;
+ BIT_SET(m_irl_pending , 0);
+ hp64k_update_irl();
+ break;
+ }
+ }
+ }
+}
+
+READ16_MEMBER(hp64k_state::hp64k_kb_r)
+{
+ UINT16 ret = 0xff00 | m_kb_row_col;
+
+ if (m_kb_pressed) {
+ BIT_SET(ret , 7);
+ }
+
+ m_kb_scan_on = true;
+ BIT_CLR(m_irl_pending , 0);
+ hp64k_update_irl();
+
+ return ret;
+}
+
+static INPUT_PORTS_START(hp64k)
+ // Keyboard is arranged in a 8 x 16 matrix. Of the 128 possible positions, only 77 are used.
+ // For key arrangement on the matrix, see [1] pg 334
+ // Keys are mapped on bit b of KEYn
+ // where b = (row & 1) << 4 + column, n = row >> 1
+ // column = [0..15]
+ // row = [0..7]
+ PORT_START("KEY0")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2)
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'')
+ PORT_BIT(BIT_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(')
+ PORT_BIT(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')')
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('=')
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^') PORT_CHAR('~')
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\\') PORT_CHAR('|')
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED)
+
+ PORT_START("KEY1")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"')
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&')
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) PORT_NAME("RECALL")
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F10) PORT_NAME("CLRLINE")
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F11) PORT_NAME("CAPS")
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F12) PORT_NAME("RESET")
+ PORT_BIT(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_NAME("SK1")
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_NAME("SK2")
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_NAME("SK3")
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_NAME("SK4")
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_NAME("SK5")
+ PORT_BIT(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_NAME("SK6")
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_NAME("SK7")
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_NAME("SK8")
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED)
+
+ PORT_START("KEY2")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("INSCHAR")
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("DELCHAR")
+ PORT_BIT(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
+ PORT_BIT(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@') PORT_CHAR('`')
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[') PORT_CHAR('{')
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH2) PORT_CHAR('_') PORT_CHAR(UCHAR_MAMEKEY(DEL))
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_NAME("ROLLUP")
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
+ PORT_BIT(BIT_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PGDN) PORT_NAME("NEXTPG")
+
+ PORT_START("KEY3")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':') PORT_CHAR('*')
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']') PORT_CHAR('}')
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT))
+ PORT_BIT(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED)
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
+ PORT_BIT(BIT_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
+ PORT_BIT(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_NAME("ROLLDN")
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN))
+ PORT_BIT(BIT_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PGUP) PORT_NAME("PREVPG")
+
+INPUT_PORTS_END
+
+static MACHINE_CONFIG_START(hp64k , hp64k_state)
+ MCFG_CPU_ADD("cpu" , HP_5061_3011 , 6250000)
+ MCFG_CPU_PROGRAM_MAP(cpu_mem_map)
+ MCFG_CPU_IO_MAP(cpu_io_map)
+ MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(hp64k_state , hp64k_irq_callback)
+ MCFG_QUANTUM_TIME(attotime::from_hz(100))
+
+ // Actual keyboard refresh rate should be between 1 and 2 kHz
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("kb_timer" , hp64k_state , hp64k_kb_scan , attotime::from_hz(100))
+
+ // Clock = 25 MHz / 9 * (112/114)
+ MCFG_DEVICE_ADD("crtc" , I8275 , 2729045)
+ MCFG_I8275_CHARACTER_WIDTH(9)
+ MCFG_I8275_DRAW_CHARACTER_CALLBACK_OWNER(hp64k_state , crtc_display_pixels)
+ MCFG_I8275_DRQ_CALLBACK(WRITELINE(hp64k_state , hp64k_crtc_drq_w))
+ MCFG_I8275_VRTC_CALLBACK(WRITELINE(hp64k_state , hp64k_crtc_vrtc_w))
+
+ MCFG_SCREEN_ADD("screen" , RASTER)
+ MCFG_SCREEN_UPDATE_DEVICE("crtc" , i8275_device , screen_update)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_PALETTE_ADD_MONOCHROME_GREEN_HIGHLIGHT("palette")
+MACHINE_CONFIG_END
+
+ROM_START(hp64k)
+ ROM_REGION(0x8000 , "cpu" , ROMREGION_16BIT | ROMREGION_BE | ROMREGION_INVERT)
+ ROM_LOAD16_BYTE("64100_80022.bin" , 0x0000 , 0x1000 , CRC(38b2aae5) SHA1(bfd0f126bfaf3724dc501979ad2d46afc41913aa))
+ ROM_LOAD16_BYTE("64100_80020.bin" , 0x0001 , 0x1000 , CRC(ac01b436) SHA1(be1e827ea1393a95abb02a52ab5cc35dc2cd96e4))
+ ROM_LOAD16_BYTE("64100_80023.bin" , 0x2000 , 0x1000 , CRC(6b4bc2ce) SHA1(00e6c58ccae9640dc81cb3e92db90a8c69b02a93))
+ ROM_LOAD16_BYTE("64100_80021.bin" , 0x2001 , 0x1000 , CRC(74f9d33c) SHA1(543a845a992b0ceac3e0491acdfb178df0adeb1f))
+ ROM_LOAD16_BYTE("64100_80026.bin" , 0x4000 , 0x1000 , CRC(a74e834b) SHA1(a2ff9765628985d9bab4cb44ba23257a9b8d0965))
+ ROM_LOAD16_BYTE("64100_80024.bin" , 0x4001 , 0x1000 , CRC(2e15a1d2) SHA1(ce4330f8f8015a26c02f0965b95baf7dfd615512))
+ ROM_LOAD16_BYTE("64100_80027.bin" , 0x6000 , 0x1000 , CRC(b93c0e7a) SHA1(b239446d3d6e9d3dba6c0278b2771abe1623e1ad))
+ ROM_LOAD16_BYTE("64100_80025.bin" , 0x6001 , 0x1000 , CRC(e6353085) SHA1(48d78835c798f2caf6ee539057676d4f3c8a4df9))
+
+ ROM_REGION(0x800 , "chargen" , 0)
+ ROM_LOAD("1816_1496_82S191.bin" , 0 , 0x800 , CRC(32a52664) SHA1(8b2a49a32510103ff424e8481d5ed9887f609f2f))
+ROM_END
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */
+COMP( 1979, hp64k, 0, 0, hp64k, hp64k, driver_device, 0, "HP", "HP 64000" , GAME_NO_SOUND)