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-rw-r--r--src/mame/drivers/hp9825.cpp1183
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diff --git a/src/mame/drivers/hp9825.cpp b/src/mame/drivers/hp9825.cpp
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-// license:BSD-3-Clause
-// copyright-holders:F. Ulivi
-
-// **************************
-// Driver for HP 9825 systems
-// **************************
-//
-// **** Temporary header, will hopefully evolve into proper doc ****
-//
-// What's in:
-// - Emulation of 9825B and 9825T systems
-// - 12 kw (9825B) or 31kw (9825T) of RAM
-// - 12 kw of system ROM
-// - Keyboard (SHIFT LOCK & RESET not implemented)
-// - Display & run light
-// - DC100 tape drive
-// - Printer
-// - Beeper
-// - Internal expansion ROMs
-// - I/O expansion slots: 98032, 98034 & 98035 modules can be connected
-// - For 9825T: the so-called SKOAL mechanism that transparently overlays RAM & ROM
-// in the same address space
-// - External expansion ROMs
-// What's not yet in:
-// - Configurable RAM size
-//
-// Thanks to Dyke Shaffer for publishing (on https://groups.io/g/VintHPcom)
-// the source code of 98217 mass memory ROM. The 98217.bin image was reconstructed
-// by re-assembling the source code (this is the reason why it's marked as
-// a BAD_DUMP). And thanks to Ansgar Kueckes for adapting his assembler to
-// handle HP9825 source files.
-// For what regards the 9825T, I'd like to thank again Dyke Shaffer for
-// publishing a lot of internal HP docs about the SKOAL card. I recovered the
-// content of SKOAL ROM from its printed & scanned dump.
-// I'd also like to thank Paul Berger for providing the images of the optional
-// mass storage ROMs (see http://www.hpmuseum.net).
-//
-// 9825A can also be emulated. At the moment I haven't all the necessary
-// ROM dumps, though.
-
-#include "emu.h"
-#include "cpu/hphybrid/hphybrid.h"
-#include "machine/timer.h"
-#include "machine/hp9825_tape.h"
-#include "machine/hp98x5_io_sys.h"
-#include "machine/hp9825_optrom.h"
-#include "bus/hp9845_io/hp9845_io.h"
-#include "imagedev/bitbngr.h"
-#include "speaker.h"
-#include "sound/beep.h"
-#include "hp9825.lh"
-#include "softlist.h"
-
-// Debugging
-#define VERBOSE 0
-#include "logmacro.h"
-
-// CPU clock (generated by a trimmered RC oscillator)
-constexpr unsigned MAIN_CLOCK = 6000000;
-
-// KDP chip clock
-constexpr unsigned KDP_CLOCK = MAIN_CLOCK / 4;
-
-// Peripheral Addresses (PA)
-constexpr uint8_t KDP_PA = 0;
-constexpr uint8_t TAPE_PA = 1;
-constexpr uint8_t IO_SLOT_FIRST_PA = 2;
-constexpr uint8_t IO_SLOT_LAST_PA = 15;
-
-// KDP clocks to print 1 line of dots (~33 ms)
-// This value is semi-guessed.
-constexpr unsigned KDP_CLOCKS_PER_LINE = 50000;
-
-// Beeper constants
-// Values come from R/C values on schematics
-constexpr unsigned BEEPER_FREQ = 900;
-constexpr unsigned BEEPER_MS = 40;
-
-// Bit manipulation
-namespace {
- template<typename T> constexpr T BIT_MASK(unsigned n)
- {
- return (T)1U << n;
- }
-
- template<typename T> void BIT_CLR(T& w , unsigned n)
- {
- w &= ~BIT_MASK<T>(n);
- }
-
- template<typename T> void BIT_SET(T& w , unsigned n)
- {
- w |= BIT_MASK<T>(n);
- }
-}
-
-// +--------------+
-// | hp9825_state |
-// +--------------+
-class hp9825_state : public driver_device
-{
-public:
- hp9825_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_cpu(*this , "cpu")
- , m_rom_drawers(*this , "drawer%u" , 0U)
- , m_io_sys(*this , "io_sys")
- , m_cursor_timer(*this , "cursor_timer")
- , m_tape(*this , "tape")
- , m_io_key(*this , "KEY%u" , 0)
- , m_shift_key(*this , "KEY_SHIFT")
- , m_prt_alpha_out(*this , "prt_alpha")
- , m_prt_graph_out(*this , "prt_graph")
- , m_prt_timer(*this , "prt_timer")
- , m_beeper(*this , "beeper")
- , m_beep_timer(*this , "beep_timer")
- , m_io_slot(*this, "slot%u", 0U)
- , m_display(*this , "char_%u_%u" , 0U , 0U)
- , m_run_light(*this , "run_light")
- {
- }
-
- void hp9825_base(machine_config &config);
-
-protected:
- virtual void machine_start() override;
- virtual void device_reset() override;
- virtual void machine_reset() override;
-
- required_device<hp_09825_67907_cpu_device> m_cpu;
- required_device_array<hp9825_optrom_device , 4> m_rom_drawers;
-
-private:
- required_device<hp98x5_io_sys_device> m_io_sys;
- required_device<timer_device> m_cursor_timer;
- required_device<hp9825_tape_device> m_tape;
- required_ioport_array<4> m_io_key;
- required_ioport m_shift_key;
- required_device<bitbanger_device> m_prt_alpha_out;
- required_device<bitbanger_device> m_prt_graph_out;
- required_device<timer_device> m_prt_timer;
- required_device<beep_device> m_beeper;
- required_device<timer_device> m_beep_timer;
- required_device_array<hp9845_io_slot_device , 3> m_io_slot;
- output_finder<32 , 7> m_display;
- output_finder<> m_run_light;
-
- bool m_display_on;
- uint8_t m_display_mem[ 32 ];
- uint8_t m_display_idx;
- bool m_rpl_cursor;
- bool m_cursor_blink;
- bool m_any_cursor;
- uint8_t m_scancode;
- bool m_key_pressed;
- bool m_autorepeating;
- unsigned m_autorepeat_cnt;
- // Printer
- uint8_t m_printer_mem[ 16 ];
- uint8_t m_printer_idx;
- unsigned m_printer_line; // 0: printer idle, 1..10: line being printed
- // SC of slots
- int m_slot_sc[ 3 ];
-
- void cpu_io_map(address_map &map);
-
- uint16_t kb_scancode_r();
- void disp_w(uint16_t data);
- uint16_t kdp_status_r();
- void kdp_control_w(uint16_t data);
- void printer_w(uint16_t data);
-
- void update_display();
- TIMER_DEVICE_CALLBACK_MEMBER(cursor_blink);
- void kb_scan_ioport(ioport_value pressed , ioport_port &port , unsigned idx_base , int& max_seq_len , unsigned& max_seq_idx);
- TIMER_DEVICE_CALLBACK_MEMBER(kb_scan);
-
- TIMER_DEVICE_CALLBACK_MEMBER(prt_timer);
-
- TIMER_DEVICE_CALLBACK_MEMBER(beep_timer);
-
- // Slot handling
- void set_irq_slot(unsigned slot , int state);
- void set_sts_slot(unsigned slot , int state);
- void set_flg_slot(unsigned slot , int state);
- void set_dmar_slot(unsigned slot , int state);
-};
-
-void hp9825_state::machine_start()
-{
- m_display.resolve();
- m_run_light.resolve();
-
- save_item(NAME(m_display_on));
- save_item(NAME(m_display_mem));
- save_item(NAME(m_display_idx));
- save_item(NAME(m_scancode));
-}
-
-void hp9825_state::device_reset()
-{
- // First, unmap every r/w handler in 1..12 select codes
- for (unsigned sc = IO_SLOT_FIRST_PA; sc < (IO_SLOT_LAST_PA + 1); sc++) {
- m_cpu->space(AS_IO).unmap_readwrite(sc * 4 , sc * 4 + 3);
- }
-
- // Then, set r/w handlers of all installed I/O cards
- int sc;
- read16m_delegate rhandler(*this);
- write16m_delegate whandler(*this);
- for (unsigned i = 0; i < 3; i++) {
- if ((sc = m_io_slot[ i ]->get_rw_handlers(rhandler , whandler)) >= 0) {
- logerror("Install R/W handlers for slot %u @ SC = %d\n", i, sc);
- m_cpu->space(AS_IO).install_readwrite_handler(sc * 4 , sc * 4 + 3 , rhandler , whandler);
- }
- m_slot_sc[ i ] = sc;
- }
-}
-
-void hp9825_state::machine_reset()
-{
- m_display_on = false;
- m_display_idx = 0;
- m_rpl_cursor = false;
- m_cursor_timer->reset();
- m_cursor_blink = true;
- update_display();
- m_scancode = 0;
- m_key_pressed = false;
- m_autorepeating = false;
- m_autorepeat_cnt = 0;
- m_printer_idx = 0;
- m_printer_line = 0;
- m_prt_timer->reset();
- m_beeper->set_state(0);
- m_beep_timer->reset();
-}
-
-void hp9825_state::cpu_io_map(address_map &map)
-{
- map.unmap_value_low();
- map(HP_MAKE_IOADDR(KDP_PA , 0) , HP_MAKE_IOADDR(KDP_PA , 0)).rw(FUNC(hp9825_state::kb_scancode_r) , FUNC(hp9825_state::disp_w));
- map(HP_MAKE_IOADDR(KDP_PA , 1) , HP_MAKE_IOADDR(KDP_PA , 1)).rw(FUNC(hp9825_state::kdp_status_r) , FUNC(hp9825_state::kdp_control_w));
- map(HP_MAKE_IOADDR(KDP_PA , 2) , HP_MAKE_IOADDR(KDP_PA , 2)).w(FUNC(hp9825_state::printer_w));
- map(HP_MAKE_IOADDR(TAPE_PA , 0) , HP_MAKE_IOADDR(TAPE_PA , 3)).rw(m_tape , FUNC(hp9825_tape_device::tape_r) , FUNC(hp9825_tape_device::tape_w));
- // TODO:
-}
-
-uint16_t hp9825_state::kb_scancode_r()
-{
- uint8_t res = m_scancode;
- if (m_shift_key->read()) {
- BIT_SET(res , 7);
- }
- m_io_sys->set_irq(KDP_PA , false);
- return res;
-}
-
-void hp9825_state::disp_w(uint16_t data)
-{
- if (m_display_on) {
- m_display_on = false;
- m_cursor_timer->reset();
- m_cursor_blink = true;
- m_display_idx = 0;
- update_display();
- }
- m_display_mem[ m_display_idx++ ] = uint8_t(data);
-}
-
-uint16_t hp9825_state::kdp_status_r()
-{
- uint16_t res = 8;
- if (m_io_sys->is_irq_pending(KDP_PA)) {
- BIT_SET(res , 4);
- }
- if (m_printer_line) {
- BIT_SET(res , 2);
- }
-
- return res;
-}
-
-void hp9825_state::kdp_control_w(uint16_t data)
-{
- bool regen_display = false;
- if (BIT(data , 1) && !m_display_on) {
- m_display_on = true;
- // Cursor should blink at 2^-19 the KDP clock
- attotime cursor_half_period{ attotime::from_ticks(262144 , KDP_CLOCK) };
- m_cursor_timer->adjust(cursor_half_period , 0 , cursor_half_period);
- regen_display = true;
- }
- if (BIT(data , 6) && !m_rpl_cursor) {
- m_rpl_cursor = true;
- regen_display = true;
- }
- if (BIT(data , 5) && m_rpl_cursor) {
- m_rpl_cursor = false;
- regen_display = true;
- }
- if (BIT(data , 4)) {
- if (BIT(data , 3)) {
- m_run_light = !m_run_light;
- } else {
- m_run_light = false;
- }
- } else if (BIT(data , 3)) {
- m_run_light = true;
- }
- if (BIT(data , 0) && m_printer_line == 0) {
- // Start printing
- // Dump text line to alpha bitbanger
- for (auto c : m_printer_mem) {
- m_prt_alpha_out->output(c);
- }
- m_prt_alpha_out->output('\n');
- m_printer_idx = 0;
- m_printer_line++;
- m_prt_timer->adjust(attotime::from_ticks(KDP_CLOCKS_PER_LINE , KDP_CLOCK));
- }
- if (BIT(data , 2)) {
- // Start beeper
- m_beeper->set_state(1);
- m_beep_timer->adjust(attotime::from_msec(BEEPER_MS));
- }
- if (regen_display) {
- update_display();
- }
-}
-
-void hp9825_state::printer_w(uint16_t data)
-{
- m_printer_mem[ m_printer_idx ] = uint8_t(data);
- m_printer_idx = (m_printer_idx + 1) & 0xf;
-}
-
-// The character generator was reverse engineered from images of printer & display test patterns.
-// It is not guaranteed to be pixel-accurate though it looks quite close to the original.
-static const uint8_t chargen[ 128 ][ 5 ] = {
- { 0x08,0x1c,0x3e,0x7f,0x00 }, // 00
- { 0x30,0x48,0x45,0x40,0x30 }, // 01
- { 0x45,0x29,0x11,0x29,0x45 }, // 02
- { 0x7d,0x09,0x11,0x21,0x7d }, // 03
- { 0x38,0x44,0x44,0x38,0x44 }, // 04
- { 0x7c,0x2a,0x4a,0x4a,0x34 }, // 05
- { 0x7f,0x01,0x01,0x01,0x03 }, // 06
- { 0x7d,0x09,0x05,0x05,0x79 }, // 07
- { 0x60,0x58,0x46,0x58,0x60 }, // 08
- { 0x38,0x44,0x44,0x3c,0x04 }, // 09
- { 0x10,0x20,0x7f,0x20,0x10 }, // 0a
- { 0x62,0x14,0x08,0x10,0x60 }, // 0b
- { 0x40,0x3c,0x20,0x20,0x1c }, // 0c
- { 0x08,0x1c,0x2a,0x08,0x08 }, // 0d
- { 0x10,0x08,0x78,0x08,0x04 }, // 0e
- { 0x08,0x55,0x7f,0x55,0x08 }, // 0f
- { 0x3e,0x49,0x49,0x49,0x3e }, // 10
- { 0x5e,0x61,0x01,0x61,0x5e }, // 11
- { 0x30,0x4a,0x4d,0x49,0x30 }, // 12
- { 0x78,0x14,0x15,0x14,0x78 }, // 13
- { 0x38,0x44,0x45,0x3c,0x40 }, // 14
- { 0x78,0x15,0x14,0x15,0x78 }, // 15
- { 0x38,0x45,0x44,0x3d,0x40 }, // 16
- { 0x3c,0x43,0x42,0x43,0x3c }, // 17
- { 0x38,0x45,0x44,0x45,0x38 }, // 18
- { 0x3e,0x41,0x40,0x41,0x3e }, // 19
- { 0x3c,0x41,0x40,0x41,0x3c }, // 1a
- { 0x7e,0x09,0x7f,0x49,0x49 }, // 1b
- { 0x38,0x44,0x38,0x54,0x58 }, // 1c
- { 0x12,0x19,0x15,0x12,0x00 }, // 1d
- { 0x48,0x7e,0x49,0x41,0x42 }, // 1e
- { 0x55,0x2a,0x55,0x2a,0x55 }, // 1f
- { 0x00,0x00,0x00,0x00,0x00 }, // 20
- { 0x00,0x5f,0x00,0x00,0x00 }, // 21
- { 0x00,0x03,0x00,0x03,0x00 }, // 22
- { 0x14,0x7f,0x14,0x7f,0x14 }, // 23
- { 0x24,0x2a,0x7f,0x2a,0x12 }, // 24
- { 0x23,0x13,0x08,0x64,0x62 }, // 25
- { 0x36,0x49,0x56,0x20,0x50 }, // 26
- { 0x00,0x0b,0x07,0x00,0x00 }, // 27
- { 0x00,0x00,0x3e,0x41,0x00 }, // 28
- { 0x00,0x41,0x3e,0x00,0x00 }, // 29
- { 0x08,0x2a,0x1c,0x2a,0x08 }, // 2a
- { 0x08,0x08,0x3e,0x08,0x08 }, // 2b
- { 0x00,0x58,0x38,0x00,0x00 }, // 2c
- { 0x08,0x08,0x08,0x08,0x08 }, // 2d
- { 0x00,0x60,0x60,0x00,0x00 }, // 2e
- { 0x20,0x10,0x08,0x04,0x02 }, // 2f
- { 0x3e,0x51,0x49,0x45,0x3e }, // 30
- { 0x00,0x42,0x7f,0x40,0x00 }, // 31
- { 0x62,0x51,0x49,0x49,0x46 }, // 32
- { 0x22,0x41,0x49,0x49,0x36 }, // 33
- { 0x18,0x14,0x12,0x7f,0x10 }, // 34
- { 0x27,0x45,0x45,0x45,0x39 }, // 35
- { 0x3c,0x4a,0x49,0x49,0x30 }, // 36
- { 0x01,0x71,0x09,0x05,0x03 }, // 37
- { 0x36,0x49,0x49,0x49,0x36 }, // 38
- { 0x06,0x49,0x49,0x29,0x1e }, // 39
- { 0x00,0x36,0x36,0x00,0x00 }, // 3a
- { 0x00,0x5b,0x3b,0x00,0x00 }, // 3b
- { 0x00,0x08,0x14,0x22,0x41 }, // 3c
- { 0x14,0x14,0x14,0x14,0x14 }, // 3d
- { 0x41,0x22,0x14,0x08,0x00 }, // 3e
- { 0x06,0x01,0x51,0x09,0x06 }, // 3f
- { 0x3e,0x41,0x5d,0x55,0x1e }, // 40
- { 0x7e,0x09,0x09,0x09,0x7e }, // 41
- { 0x7f,0x49,0x49,0x49,0x36 }, // 42
- { 0x3e,0x41,0x41,0x41,0x22 }, // 43
- { 0x7f,0x41,0x41,0x41,0x3e }, // 44
- { 0x7f,0x49,0x49,0x49,0x41 }, // 45
- { 0x7f,0x09,0x09,0x09,0x01 }, // 46
- { 0x3e,0x41,0x41,0x51,0x72 }, // 47
- { 0x7f,0x08,0x08,0x08,0x7f }, // 48
- { 0x00,0x41,0x7f,0x41,0x00 }, // 49
- { 0x20,0x40,0x40,0x40,0x3f }, // 4a
- { 0x7f,0x08,0x14,0x22,0x41 }, // 4b
- { 0x7f,0x40,0x40,0x40,0x40 }, // 4c
- { 0x7f,0x02,0x0c,0x02,0x7f }, // 4d
- { 0x7f,0x04,0x08,0x10,0x7f }, // 4e
- { 0x3e,0x41,0x41,0x41,0x3e }, // 4f
- { 0x7f,0x09,0x09,0x09,0x06 }, // 50
- { 0x3e,0x41,0x51,0x21,0x5e }, // 51
- { 0x7f,0x09,0x19,0x29,0x46 }, // 52
- { 0x26,0x49,0x49,0x49,0x32 }, // 53
- { 0x01,0x01,0x7f,0x01,0x01 }, // 54
- { 0x3f,0x40,0x40,0x40,0x3f }, // 55
- { 0x07,0x18,0x60,0x18,0x07 }, // 56
- { 0x7f,0x20,0x10,0x20,0x7f }, // 57
- { 0x63,0x14,0x08,0x14,0x63 }, // 58
- { 0x03,0x04,0x78,0x04,0x03 }, // 59
- { 0x61,0x51,0x49,0x45,0x43 }, // 5a
- { 0x00,0x00,0x7f,0x41,0x41 }, // 5b
- { 0x20,0x7f,0x01,0x01,0x01 }, // 5c
- { 0x41,0x41,0x7f,0x00,0x00 }, // 5d
- { 0x04,0x02,0x7f,0x02,0x04 }, // 5e
- { 0x40,0x40,0x40,0x40,0x40 }, // 5f
- { 0x00,0x07,0x0b,0x00,0x00 }, // 60
- { 0x38,0x44,0x44,0x3c,0x40 }, // 61
- { 0x7f,0x48,0x44,0x44,0x38 }, // 62
- { 0x38,0x44,0x44,0x44,0x20 }, // 63
- { 0x38,0x44,0x44,0x48,0x7f }, // 64
- { 0x38,0x54,0x54,0x54,0x08 }, // 65
- { 0x08,0x7e,0x09,0x02,0x00 }, // 66
- { 0x08,0x14,0x54,0x54,0x3c }, // 67
- { 0x7f,0x08,0x04,0x04,0x78 }, // 68
- { 0x00,0x44,0x7d,0x40,0x00 }, // 69
- { 0x20,0x40,0x44,0x3d,0x00 }, // 6a
- { 0x7f,0x10,0x28,0x44,0x00 }, // 6b
- { 0x00,0x41,0x7f,0x40,0x00 }, // 6c
- { 0x78,0x04,0x18,0x04,0x78 }, // 6d
- { 0x7c,0x08,0x04,0x04,0x78 }, // 6e
- { 0x38,0x44,0x44,0x44,0x38 }, // 6f
- { 0x7c,0x14,0x24,0x24,0x18 }, // 70
- { 0x18,0x24,0x14,0x7c,0x40 }, // 71
- { 0x7c,0x08,0x04,0x04,0x00 }, // 72
- { 0x48,0x54,0x54,0x54,0x20 }, // 73
- { 0x04,0x3e,0x44,0x20,0x00 }, // 74
- { 0x3c,0x40,0x40,0x20,0x7c }, // 75
- { 0x1c,0x20,0x40,0x20,0x1c }, // 76
- { 0x3c,0x40,0x30,0x40,0x3c }, // 77
- { 0x44,0x28,0x10,0x28,0x44 }, // 78
- { 0x04,0x48,0x30,0x08,0x04 }, // 79
- { 0x44,0x64,0x54,0x4c,0x44 }, // 7a
- { 0x08,0x7c,0x04,0x7c,0x02 }, // 7b
- { 0x00,0x00,0x7f,0x00,0x00 }, // 7c
- { 0x08,0x08,0x2a,0x1c,0x08 }, // 7d
- { 0x41,0x63,0x55,0x49,0x63 }, // 7e
- { 0x7f,0x08,0x08,0x08,0x08 } // 7f
-};
-
-void hp9825_state::update_display()
-{
- m_any_cursor = false;
- for (unsigned i = 0; i < 32; ++i) {
- bool cursor_here = BIT(m_display_mem[ i ] , 7);
- if (cursor_here) {
- m_any_cursor = true;
- }
- bool show_cursor = m_cursor_blink && cursor_here;
- uint8_t char_code = m_display_mem[ i ] & 0x7f;
- for (unsigned j = 0; j < 7; ++j) {
- uint8_t five_dots = 0;
- if (m_display_on) {
- for (unsigned col = 0; col < 5; col++) {
- uint8_t char_col;
- if (show_cursor) {
- if (m_rpl_cursor) {
- // Replace cursor: all pixels lit
- char_col = ~0;
- } else {
- // Insert cursor: character code 0
- char_col = chargen[ 0 ][ col ];
- }
- } else {
- char_col = chargen[ char_code ][ col ];
- }
- if (BIT(char_col , j)) {
- BIT_SET(five_dots , col);
- }
- }
- }
- m_display[ i ][ j ] = five_dots;
- }
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::cursor_blink)
-{
- m_cursor_blink = !m_cursor_blink;
- if (m_any_cursor) {
- update_display();
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::kb_scan)
-{
- ioport_value input[ 4 ]
- { m_io_key[ 0 ]->read(),
- m_io_key[ 1 ]->read(),
- m_io_key[ 2 ]->read(),
- m_io_key[ 3 ]->read()
- };
-
- if (m_key_pressed) {
- // Still pressed ?
- m_key_pressed = BIT(input[ m_scancode / 32 ] , m_scancode % 32);
- } else {
- int max_seq_len = 0;
- unsigned max_seq_idx = 0;
- for (unsigned i = 0; i < 4; i++) {
- kb_scan_ioport(input[ i ] , *m_io_key[ i ] , i << 5 , max_seq_len , max_seq_idx);
- }
- if (max_seq_len) {
- m_scancode = max_seq_idx;
- m_key_pressed = true;
- m_io_sys->set_irq(KDP_PA , true);
- }
- }
-
- if (m_key_pressed) {
- auto prev_cnt = m_autorepeat_cnt;
- m_autorepeat_cnt++;
- // Auto-repeat initial delay & frequency are entirely guessed..
- if (BIT(m_autorepeat_cnt , 5)) {
- // Initial delay passed
- m_autorepeating = true;
- }
- if (m_autorepeating && BIT(~prev_cnt & m_autorepeat_cnt , 3)) {
- // Repeat key every time bit 3 of autorepeat counter goes 0->1
- m_io_sys->set_irq(KDP_PA , true);
- }
- } else {
- m_autorepeating = false;
- m_autorepeat_cnt = 0;
- }
-}
-
-void hp9825_state::kb_scan_ioport(ioport_value pressed , ioport_port &port , unsigned idx_base , int& max_seq_len , unsigned& max_seq_idx)
-{
- while (pressed) {
- unsigned bit_no = 31 - count_leading_zeros_32(pressed);
- ioport_value mask = BIT_MASK<ioport_value>(bit_no);
- int seq_len = port.field(mask)->seq().length();
- if (seq_len > max_seq_len) {
- max_seq_len = seq_len;
- max_seq_idx = bit_no + idx_base;
- }
- pressed &= ~mask;
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::prt_timer)
-{
- if (m_printer_line == 1 || m_printer_line == 9 || m_printer_line == 10) {
- // Empty lines
- for (unsigned i = 0; i < 110; i++) {
- m_prt_graph_out->output(' ');
- }
- } else {
- for (unsigned i = 0; i < 16; i++) {
- for (unsigned col = 0; col < 5; col++) {
- uint8_t pixels = chargen[ m_printer_mem[ i ] & 0x7f ][ col ];
- m_prt_graph_out->output(BIT(pixels , m_printer_line - 2) ? '*' : ' ');
- }
- m_prt_graph_out->output(' ');
- m_prt_graph_out->output(' ');
- }
- }
- m_prt_graph_out->output('\n');
- m_printer_line++;
- if (m_printer_line <= 10) {
- m_prt_timer->adjust(attotime::from_ticks(KDP_CLOCKS_PER_LINE , KDP_CLOCK));
- } else {
- m_printer_line = 0;
- }
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(hp9825_state::beep_timer)
-{
- m_beeper->set_state(0);
-}
-
-void hp9825_state::set_irq_slot(unsigned slot , int state)
-{
- int sc = m_slot_sc[ slot ];
- assert(sc >= 0);
- m_io_sys->set_irq(uint8_t(sc) , state);
-}
-
-void hp9825_state::set_sts_slot(unsigned slot , int state)
-{
- int sc = m_slot_sc[ slot ];
- assert(sc >= 0);
- m_io_sys->set_sts(uint8_t(sc) , state);
-}
-
-void hp9825_state::set_flg_slot(unsigned slot , int state)
-{
- int sc = m_slot_sc[ slot ];
- assert(sc >= 0);
- m_io_sys->set_flg(uint8_t(sc) , state);
-}
-
-void hp9825_state::set_dmar_slot(unsigned slot , int state)
-{
- int sc = m_slot_sc[ slot ];
- assert(sc >= 0);
- m_io_sys->set_dmar(uint8_t(sc) , state);
-}
-
-void hp9825_state::hp9825_base(machine_config &config)
-{
- HP_09825_67907(config , m_cpu , MAIN_CLOCK);
- // Just guessing... settings borrowed from hp9845
- m_cpu->set_rw_cycles(6 , 6);
- m_cpu->set_relative_mode(false);
- m_cpu->set_addrmap(AS_IO , &hp9825_state::cpu_io_map);
- m_cpu->int_cb().set(m_io_sys , FUNC(hp98x5_io_sys_device::int_r));
- m_cpu->pa_changed_cb().set(m_io_sys , FUNC(hp98x5_io_sys_device::pa_w));
-
- // Needed when 98035 RTC module is connected or time advances at about 1/4 the correct speed (NP misses a lot of 1kHz interrupts)
- config.set_maximum_quantum(attotime::from_hz(5000));
-
- HP98X5_IO_SYS(config , m_io_sys , 0);
- m_io_sys->irl().set_inputline(m_cpu, HPHYBRID_IRL);
- m_io_sys->irh().set_inputline(m_cpu, HPHYBRID_IRH);
- m_io_sys->sts().set(m_cpu , FUNC(hp_09825_67907_cpu_device::status_w));
- m_io_sys->flg().set(m_cpu , FUNC(hp_09825_67907_cpu_device::flag_w));
- m_io_sys->dmar().set(m_cpu , FUNC(hp_09825_67907_cpu_device::dmar_w));
-
- TIMER(config , m_cursor_timer , 0).configure_generic(FUNC(hp9825_state::cursor_blink));
-
- // Keyboard scan timer. A scan of the whole keyboard should take 2^14 KDP clocks.
- TIMER(config , "kb_timer" , 0).configure_periodic(FUNC(hp9825_state::kb_scan), attotime::from_ticks(16384 , KDP_CLOCK));
-
- // Tape drive
- HP9825_TAPE(config , m_tape , 0);
- m_tape->flg().set([this](int state) { m_io_sys->set_flg(TAPE_PA , state); });
- m_tape->sts().set([this](int state) { m_io_sys->set_sts(TAPE_PA , state); });
- m_tape->dmar().set([this](int state) { m_io_sys->set_dmar(TAPE_PA , state); });
-
- // Printer
- BITBANGER(config , m_prt_alpha_out , 0);
- BITBANGER(config , m_prt_graph_out , 0);
- TIMER(config , m_prt_timer , 0).configure_generic(FUNC(hp9825_state::prt_timer));
-
- // Beeper
- SPEAKER(config, "mono").front_center();
- BEEP(config, m_beeper, BEEPER_FREQ).add_route(ALL_OUTPUTS, "mono", 1.00);
- TIMER(config , m_beep_timer , 0).configure_generic(FUNC(hp9825_state::beep_timer));
-
- // I/O slots
- for (unsigned slot = 0; slot < 3; slot++) {
- auto& finder = m_io_slot[ slot ];
- hp9845_io_slot_device& tmp( HP9845_IO_SLOT(config , finder , 0) );
- tmp.irq().set([this , slot](int state) { set_irq_slot(slot , state); });
- tmp.sts().set([this , slot](int state) { set_sts_slot(slot , state); });
- tmp.flg().set([this , slot](int state) { set_flg_slot(slot , state); });
- tmp.dmar().set([this , slot](int state) { set_dmar_slot(slot , state); });
- }
-
- // Optional ROM slots
- for (auto& finder : m_rom_drawers) {
- HP9825_OPTROM(config , finder);
- }
-
- config.set_default_layout(layout_hp9825);
-}
-
-#define IOP_MASK(x) BIT_MASK<ioport_value>((x))
-
-static INPUT_PORTS_START(hp9825)
- // Keyboard is arranged in a 8 x 16 matrix. Of the 128 possible positions, 102 are used.
- // Keys are mapped on bit b of KEYn
- // where b = (row & 1) << 4 + column, n = row >> 1
- // column = [0..15]
- // row = [0..7]
- // 4 more keys are not in the matrix: 2 SHIFTs, 1 SHIFT LOCK and RESET key.
- // Fun fact: alphanumeric keys are arranged in the matrix so that their scancode (row/column number)
- // equals the lower case ASCII code. The person in charge of routing the keyboard PCB
- // must have loved this arrangement...
- PORT_START("KEY0")
- PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,0: N/U
- PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_NAME("Stop") // 0,1: Stop
- PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Rewind") // 0,2: Rewind
- PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,3: N/U
- PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,4: N/U
- PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,5: N/U
- PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,6: N/U
- PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Result") // 0,7: Result
- PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line insert") // 0,8: Line insert
- PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line delete") // 0,9: Line delete
- PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_NAME("Execute") // 0,10: Execute
- PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line recall") // 0,11: Line recall
- PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Run") // 0,12: Run
- PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Store") // 0,13: Store
- PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Display left") // 0,14: Display left
- PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Display right") // 0,15: Display right
- PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_NAME("Display down") // 1,0: Display down
- PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_NAME("Display up") // 1,1: Display up
- PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_NAME("Clear") // 1,2: Clear
- PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Print all") // 1,3: Print all
- PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Char back") // 1,4: Char back
- PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Char forward") // 1,5: Char forward
- PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("Char ins/rpl") // 1,6: Char ins/rpl
- PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("Char delete") // 1,7: Char delete
- PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Step") // 1,8: Step
- PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Continue") PORT_CHAR(13) // 1,9: Continue
- PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 1,10: N/U
- PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("List") // 1,11: List
- PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Line fetch") // 1,12: Line fetch
- PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Erase") // 1,13: Erase
- PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Record") // 1,14: Record
- PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Load") // 1,15: Load
-
- PORT_START("KEY1")
- PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 2,0: Space
- PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,1: N/U
- PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,2: N/U
- PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,3: N/U
- PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,4: N/U
- PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,5: N/U
- PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,6: N/U
- PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED) // 2,7: N/U
- PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('(') PORT_NAME("Keypad (") // 2,8: KP (
- PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(')') PORT_NAME("Keypad )") // 2,9: KP )
- PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) // 2,10: KP *
- PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) // 2,11: KP +
- PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') // 2,12: ,
- PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) // 2,13: KP -
- PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') // 2,14: .
- PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) // 2,15: KP /
- PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('\'') // 3,0: 0
- PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 3,1: 1
- PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') // 3,2: 2
- PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 3,3: 3
- PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 3,4: 4
- PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 3,5: 5
- PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') // 3,6: 6
- PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('@') // 3,7: 7
- PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('[') // 3,8: 8
- PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(']') // 3,9: 9
- PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,10: N/U
- PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') // 3,11: ;
- PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,12: N/U
- PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS_PAD) PORT_CHAR(UCHAR_MAMEKEY(EQUALS_PAD)) // 3,13: =
- PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED) // 3,14: N/U
- PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('?') PORT_CHAR(':') // 3,15: ?
-
- PORT_START("KEY2")
- PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_UNUSED) // 4,0: N/U
- PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("f0") // 4,1: f0
- PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_NAME("f1") // 4,2: f1
- PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_NAME("f2") // 4,3: f2
- PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_NAME("f3") // 4,4: f3
- PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_NAME("f4") // 4,5: f4
- PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_NAME("f5") // 4,6: f5
- PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_NAME("f6") // 4,7: f6
- PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_NAME("f7") // 4,8: f7
- PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_NAME("f8") // 4,9: f8
- PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_NAME("f9") // 4,10: f9
- PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) PORT_NAME("f10") // 4,11: f10
- PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_NAME("f11") // 4,12: f11
- PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_UNUSED) // 4,13: N/U
- PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) // 4,14: KP 0
- PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) // 4,15: KP 1
- PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) // 5,0: KP 2
- PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) // 5,1: KP 3
- PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) // 5,2: KP 4
- PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) // 5,3: KP 5
- PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) // 5,4: KP 6
- PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) // 5,5: KP 7
- PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) // 5,6: KP 8
- PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) // 5,7: KP 9
- PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) // 5,8: KP .
- PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA_PAD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) // 5,9: KP ,
- PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,10: N/U
- PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,11: N/U
- PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,12: N/U
- PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,13: N/U
- PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_NAME(u8"\u2191 \u221A") // 5,14: ^ (↑ √)
- PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 5,15: N/U
-
- PORT_START("KEY3")
- PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("Enter exp _") // 6,0: Enter exp
- PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 6,1: A
- PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 6,2: B
- PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') // 6,3: C
- PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') // 6,4: D
- PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 6,5: E
- PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 6,6: F
- PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 6,7: G
- PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 6,8: H
- PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 6,9: I
- PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') // 6,10: J
- PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 6,11: K
- PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 6,12: L
- PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 6,13: M
- PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 6,14: N
- PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 6,15: O
- PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') // 7,0: P
- PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 7,1: Q
- PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 7,2: R
- PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 7,3: S
- PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 7,4: T
- PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 7,5: U
- PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 7,6: V
- PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 7,7: W
- PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') // 7,8: X
- PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 7,9: Y
- PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 7,10: Z
- PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME(u8"π |") // 7,11: Pi
- PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,12: N/U
- PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_NAME(u8"\u2192") // 7,13: Gazinta (→)
- PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,14: N/U
- PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,15: N/U
-
- PORT_START("KEY_SHIFT")
- PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // Shift
-INPUT_PORTS_END
-
-// +---------------+
-// | hp9825b_state |
-// +---------------+
-class hp9825b_state : public hp9825_state
-{
-public:
- hp9825b_state(const machine_config &mconfig, device_type type, const char *tag)
- : hp9825_state(mconfig , type , tag)
- {
- }
-
- void hp9825b(machine_config &config);
-
-protected:
- virtual void device_reset() override;
-
-private:
- void cpu_mem_map(address_map &map);
-};
-
-void hp9825b_state::hp9825b(machine_config &config)
-{
- hp9825_base(config);
- m_cpu->set_addrmap(AS_PROGRAM , &hp9825b_state::cpu_mem_map);
-
- for (auto& finder : m_rom_drawers) {
- finder->set_rom_limit(0x5000);
- }
-
- SOFTWARE_LIST(config, "optrom_list").set_original("hp9825b_rom");
-}
-
-void hp9825b_state::device_reset()
-{
- hp9825_state::device_reset();
-
- auto space = &m_cpu->space(AS_PROGRAM);
-
- for (auto& finder : m_rom_drawers) {
- finder->install_rw_handlers(space , nullptr);
- }
-}
-
-void hp9825b_state::cpu_mem_map(address_map &map)
-{
- map.unmap_value_low();
- map(0x0000 , 0x2fff).rom();
- map(0x3400 , 0x3bff).rom();
- map(0x4000 , 0x4fff).rom();
- map(0x5000 , 0x7fff).ram();
-}
-
-// +---------------+
-// | hp9825t_state |
-// +---------------+
-class hp9825t_state : public hp9825_state,
- public device_memory_interface
-{
-public:
- hp9825t_state(const machine_config &mconfig, device_type type, const char *tag)
- : hp9825_state(mconfig , type , tag)
- , device_memory_interface(mconfig , *this)
- , m_skoalrom(*this , "skoalrom")
- , m_ram_space_config("ram" , ENDIANNESS_BIG , 16 , 15 , -1)
- , m_rom_space_config("rom" , ENDIANNESS_BIG , 16 , 15 , -1)
- {
- }
-
- void hp9825t(machine_config &config);
-
-protected:
- virtual void machine_start() override;
- virtual void device_reset() override;
-
- // device_memory_interface overrides
- virtual space_config_vector memory_space_config() const override;
-
-private:
- required_memory_region m_skoalrom;
- address_space_config m_ram_space_config;
- address_space *m_ram_space;
- address_space_config m_rom_space_config;
- address_space *m_rom_space;
-
- uint8_t m_cycle_type;
-
- // SKOAL state
- bool m_skoalbit; // U53
- bool m_second_access; // U57-3
- bool m_mref; // U57-4
- bool m_ifetch_4400; // U57-5
- uint8_t m_special_opt; // U42
- uint16_t m_fetch_addr;
-
- void cpu_mem_map(address_map &map);
- void ram_mem_map(address_map &map);
- void rom_mem_map(address_map &map);
- uint16_t cpu_mem_r(offs_t offset, uint16_t mem_mask = ~0);
- void cpu_mem_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
- void stm(uint8_t cycle_type);
- void on_cycle_end();
- void opcode_fetch(uint16_t opcode);
- uint8_t get_skoalrom(uint16_t addr);
- bool is_rom(uint16_t addr , uint8_t cycle_type) const;
-};
-
-void hp9825t_state::hp9825t(machine_config &config)
-{
- hp9825_base(config);
- m_cpu->set_addrmap(AS_PROGRAM , &hp9825t_state::cpu_mem_map);
- m_cpu->stm_cb().set(FUNC(hp9825t_state::stm));
- m_cpu->opcode_cb().set(FUNC(hp9825t_state::opcode_fetch));
- set_addrmap(0 , &hp9825t_state::ram_mem_map);
- set_addrmap(1 , &hp9825t_state::rom_mem_map);
-
- for (auto& finder : m_rom_drawers) {
- finder->set_rom_limit(0x6000);
- }
-
- SOFTWARE_LIST(config, "optrom_list").set_original("hp9825b_rom");
-}
-
-void hp9825t_state::machine_start()
-{
- hp9825_state::machine_start();
-
- m_ram_space = &space(0);
- m_rom_space = &space(1);
-}
-
-void hp9825t_state::device_reset()
-{
- hp9825_state::device_reset();
-
- for (auto& finder : m_rom_drawers) {
- finder->install_rw_handlers(m_rom_space , m_ram_space);
- }
-
- // This has to be done before CPU reset or first instruction won't be fetched correctly
- m_cycle_type = 0;
- m_special_opt = 0xf;
-}
-
-device_memory_interface::space_config_vector hp9825t_state::memory_space_config() const
-{
- return space_config_vector {
- std::make_pair(0 , &m_ram_space_config),
- std::make_pair(1 , &m_rom_space_config)
- };
-}
-
-void hp9825t_state::cpu_mem_map(address_map &map)
-{
- map.unmap_value_low();
- map(0x0000 , 0x7fff).rw(FUNC(hp9825t_state::cpu_mem_r) , FUNC(hp9825t_state::cpu_mem_w));
-}
-
-void hp9825t_state::ram_mem_map(address_map &map)
-{
- // 32 kw of RAM covering the whole address space (1st kw not accessible)
- map(0x0000 , 0x7fff).ram();
-}
-
-void hp9825t_state::rom_mem_map(address_map &map)
-{
- map.unmap_value_low();
- map(0x0000 , 0x2fff).rom().region(":rom" , 0);
- map(0x3400 , 0x3bff).rom().region(":rom" , 0x6800);
- map(0x4000 , 0x53ff).rom().region(":rom" , 0x8000);
-}
-
-uint16_t hp9825t_state::cpu_mem_r(offs_t offset, uint16_t mem_mask)
-{
- bool from_rom;
-
- if (m_cycle_type & hp_hybrid_cpu_device::CYCLE_RD_MASK) {
- if (m_cycle_type & hp_hybrid_cpu_device::CYCLE_IFETCH_MASK) {
- m_fetch_addr = offset;
- }
- from_rom = is_rom(offset , m_cycle_type);
- LOG("rd @%04x CYC=%x %d%d%d%d ROM=%d\n" , offset , m_cycle_type , m_skoalbit , m_second_access , m_mref , m_ifetch_4400 , from_rom);
- if (!(m_cycle_type & (hp_hybrid_cpu_device::CYCLE_IFETCH_MASK | hp_hybrid_cpu_device::CYCLE_DMA_MASK))) {
- on_cycle_end();
- }
- m_cycle_type = 0;
- // TODO: diagnostic read
- } else {
- // Read coming from debugger and not from CPU: fake an ifetch
- from_rom = is_rom(offset , hp_hybrid_cpu_device::CYCLE_IFETCH_MASK);
- }
-
- return from_rom ? m_rom_space->read_word(offset , mem_mask) : m_ram_space->read_word(offset , mem_mask);
-}
-
-void hp9825t_state::cpu_mem_w(offs_t offset, uint16_t data, uint16_t mem_mask)
-{
- if (m_cycle_type & hp_hybrid_cpu_device::CYCLE_WR_MASK) {
- if (!(m_cycle_type & hp_hybrid_cpu_device::CYCLE_DMA_MASK)) {
- on_cycle_end();
- }
- m_cycle_type = 0;
- }
- // All write cycles go to RAM
- m_ram_space->write_word(offset , data , mem_mask);
-}
-
-void hp9825t_state::stm(uint8_t cycle_type)
-{
- LOG("stm %x\n" , cycle_type);
- m_cycle_type = cycle_type;
- if (m_cycle_type & hp_hybrid_cpu_device::CYCLE_IFETCH_MASK) {
- m_second_access = false;
- m_mref = false;
- m_ifetch_4400 = false;
- // In case of ifetch from register area this is kept at 0 (because cpu_mem_r is not called)
- // In case of ifetch from RAM/ROM this is set by cpu_mem_r to the fetch address
- m_fetch_addr = 0;
- } else if (m_cycle_type & hp_hybrid_cpu_device::CYCLE_RAL_MASK) {
- if (!(m_cycle_type & hp_hybrid_cpu_device::CYCLE_DMA_MASK)) {
- on_cycle_end();
- }
- m_cycle_type = 0;
- }
-}
-
-void hp9825t_state::on_cycle_end()
-{
- m_second_access = false;
-}
-
-void hp9825t_state::opcode_fetch(uint16_t opcode)
-{
- LOG("oc %04x\n" , opcode);
- m_cycle_type = 0;
- // memory referencing instructions
- m_mref = (opcode & 0x7000) != 0x7000;
- m_second_access = true;
- m_ifetch_4400 = (m_fetch_addr & 0x7f00) == 0x0900;
- if (BIT(m_special_opt , 3) && BIT(m_special_opt , 2)) {
- // Set SKOAL bit
- if (m_fetch_addr < 0x20) {
- // Fetch from registers -> SKOAL bit = 0
- m_skoalbit = false;
- } else if ((m_fetch_addr & 0x6000) == 0x6000) {
- // Fetch in [6000..7fff] range -> SKOAL bit = 0
- m_skoalbit = false;
- } else {
- uint8_t tmp = get_skoalrom(m_fetch_addr);
- m_skoalbit = (tmp >> ((~m_fetch_addr >> 12) & 7)) & 1;
- }
- }
- // Decode SKOAL instructions. They are ignored by the hybrid processor
- // as they are not recognized.
- if ((opcode & 0xffc0) == 0x7040) {
- m_special_opt = opcode & 0xf;
- if (!BIT(m_special_opt , 3)) {
- // RAM/ == 0
- m_skoalbit = false;
- } else if (!BIT(m_special_opt , 2)) {
- // ROM/ == 0
- m_skoalbit = true;
- }
- }
-}
-
-uint8_t hp9825t_state::get_skoalrom(uint16_t addr)
-{
- return m_skoalrom->as_u8(~addr & 0x0fff);
-}
-
-bool hp9825t_state::is_rom(uint16_t addr , uint8_t cycle_type) const
-{
- if ((addr & 0x6000) == 0x6000) {
- // [6000..7fff] -> always RAM
- return false;
- } else if ((cycle_type & hp_hybrid_cpu_device::CYCLE_DMA_MASK) != 0 ||
- !BIT(m_special_opt , 1)) {
- // DMA cycle or BIT/ == 0 -> RAM
- return false;
- } else if (addr >= 0x400 && !BIT(m_special_opt , 0)) {
- // [0400..5fff] and BIN/ == 0 -> RAM
- return false;
- } else {
- bool addr_0800_7fff = (addr & 0x7800) != 0;
- bool addr_0400_07ff = !addr_0800_7fff && BIT(addr , 10);
- bool addr_0000_03ff = !addr_0800_7fff && !BIT(addr , 10);
-
- // U58-6
- bool force_rom;
-
- // ROM when one or more of these is true:
- // - addr in [0000..03ff]
- // - Ifetch cycle and addr in [0800..5fff]
- // - 2nd access of a memory-referencing instruction not in [0400..07ff] range
- // - skoalbit = 1 and instruction fetched in [0900..09ff] range
- force_rom =
- addr_0000_03ff ||
- ((cycle_type & hp_hybrid_cpu_device::CYCLE_IFETCH_MASK) != 0 && addr_0800_7fff) ||
- (m_second_access && m_mref && (!BIT(m_special_opt , 2) || !addr_0400_07ff)) ||
- (m_skoalbit && m_ifetch_4400);
-
- if (force_rom) {
- return true;
- } else if (addr_0400_07ff && BIT(m_special_opt , 2)) {
- return false;
- } else {
- return m_skoalbit;
- }
- }
-}
-
-ROM_START(hp9825b)
- ROM_REGION(0xa000 , "cpu" , ROMREGION_16BIT | ROMREGION_BE)
- ROM_LOAD("sysrom1.bin" , 0x0000 , 0x2000 , CRC(fe429268) SHA1(f2fe7c5abca92bd13f81b4385fc4fce0cafb0da0))
- ROM_LOAD("sysrom2.bin" , 0x2000 , 0x2000 , CRC(96093b5d) SHA1(c6ec4cafd019887df0fa849b3c7070bb74faee54))
- ROM_LOAD("sysrom3.bin" , 0x4000 , 0x2000 , CRC(f9470f67) SHA1(b80cb4a366d93bd7acc3508ce987bb11c5986b2a))
- ROM_LOAD("genio_t.bin" , 0x6800 , 0x0800 , CRC(ade1d1ed) SHA1(9af74a65b29ef1885f74164238ecf8d16ac995d6))
- ROM_LOAD("plot72.bin" , 0x7000 , 0x0800 , CRC(0a9cb8db) SHA1(d0d126fca108f2715e1e408cb31b09ba69385ac4))
- ROM_LOAD("advpgm_t.bin", 0x8000 , 0x0800 , CRC(965b5e5a) SHA1(ff44dd15f8fa4ca03dfd970ed8b200e8a071ec13))
- ROM_LOAD("extio_t.bin" , 0x8800 , 0x1000 , CRC(a708b978) SHA1(baf53c8a2b24d059f95252baf1452188eaf6e4be))
- ROM_LOAD("strings_t.bin",0x9800 , 0x0800 , CRC(b5ca5da5) SHA1(af13abb3c15836c566863c656e1659f7e6f96d04))
-ROM_END
-
-ROM_START(hp9825t)
- ROM_REGION(0xa800 , ":rom" , ROMREGION_16BIT | ROMREGION_BE | ROMREGION_ERASE | ROMREGION_ERASE00)
- ROM_LOAD("sysrom1.bin" , 0x0000 , 0x2000 , CRC(fe429268) SHA1(f2fe7c5abca92bd13f81b4385fc4fce0cafb0da0))
- ROM_LOAD("sysrom2.bin" , 0x2000 , 0x2000 , CRC(96093b5d) SHA1(c6ec4cafd019887df0fa849b3c7070bb74faee54))
- ROM_LOAD("sysrom3.bin" , 0x4000 , 0x2000 , CRC(f9470f67) SHA1(b80cb4a366d93bd7acc3508ce987bb11c5986b2a))
- ROM_LOAD("genio_t.bin" , 0x6800 , 0x0800 , CRC(ade1d1ed) SHA1(9af74a65b29ef1885f74164238ecf8d16ac995d6))
- ROM_LOAD("plot72.bin" , 0x7000 , 0x0800 , CRC(0a9cb8db) SHA1(d0d126fca108f2715e1e408cb31b09ba69385ac4))
- ROM_LOAD("advpgm_t.bin", 0x8000 , 0x0800 , CRC(965b5e5a) SHA1(ff44dd15f8fa4ca03dfd970ed8b200e8a071ec13))
- ROM_LOAD("extio_t.bin" , 0x8800 , 0x1000 , CRC(a708b978) SHA1(baf53c8a2b24d059f95252baf1452188eaf6e4be))
- ROM_LOAD("strings_t.bin",0x9800 , 0x0800 , CRC(b5ca5da5) SHA1(af13abb3c15836c566863c656e1659f7e6f96d04))
- ROM_LOAD("syspgm.bin" , 0xa000 , 0x0800 , CRC(8915588f) SHA1(037f497b5ecc3216fb6b8356767cc361fb0b2945))
-
- ROM_REGION(0x1000 , "skoalrom" , 0)
- ROM_LOAD("skoalrom.bin" , 0 , 0x1000 , CRC(5e8124d5) SHA1(dedf7f8a10c62b444f04213956083089e97bf219))
-ROM_END
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP(1980, hp9825b, 0, 0, hp9825b, hp9825, hp9825b_state,empty_init, "Hewlett-Packard", "HP 9825B", 0)
-COMP(1980, hp9825t, 0, 0, hp9825t, hp9825, hp9825t_state,empty_init, "Hewlett-Packard", "HP 9825T", 0)