// 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 constexpr T BIT_MASK(unsigned n) { return (T)1U << n; } template void BIT_CLR(T& w , unsigned n) { w &= ~BIT_MASK(n); } template void BIT_SET(T& w , unsigned n) { w |= BIT_MASK(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 m_cpu; required_device_array m_rom_drawers; private: required_device m_io_sys; required_device m_cursor_timer; required_device m_tape; required_ioport_array<4> m_io_key; required_ioport m_shift_key; required_device m_prt_alpha_out; required_device m_prt_graph_out; required_device m_prt_timer; required_device m_beeper; required_device m_beep_timer; required_device_array 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); DECLARE_READ16_MEMBER(kb_scancode_r); DECLARE_WRITE16_MEMBER(disp_w); DECLARE_READ16_MEMBER(kdp_status_r); DECLARE_WRITE16_MEMBER(kdp_control_w); DECLARE_WRITE16_MEMBER(printer_w); 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; read16_delegate rhandler(*this); write16_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: } READ16_MEMBER(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; } WRITE16_MEMBER(hp9825_state::disp_w) { 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); } READ16_MEMBER(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; } WRITE16_MEMBER(hp9825_state::kdp_control_w) { 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(); } } WRITE16_MEMBER(hp9825_state::printer_w) { 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(pressed); ioport_value mask = BIT_MASK(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->set_irq_acknowledge_callback("io_sys" , FUNC(hp98x5_io_sys_device::irq_callback)); 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((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); DECLARE_READ16_MEMBER(cpu_mem_r); DECLARE_WRITE16_MEMBER(cpu_mem_w); 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); } READ16_MEMBER(hp9825t_state::cpu_mem_r) { 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); } WRITE16_MEMBER(hp9825t_state::cpu_mem_w) { 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)