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Diffstat (limited to 'src/mame/drivers/hp80.cpp')
-rw-r--r-- | src/mame/drivers/hp80.cpp | 1412 |
1 files changed, 0 insertions, 1412 deletions
diff --git a/src/mame/drivers/hp80.cpp b/src/mame/drivers/hp80.cpp deleted file mode 100644 index ab2ae8aff56..00000000000 --- a/src/mame/drivers/hp80.cpp +++ /dev/null @@ -1,1412 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:F. Ulivi -// -// ******************************* -// Driver for HP series 80 systems -// ******************************* -// -// This is WIP: lot of things still missing - -#include "emu.h" -#include "emupal.h" -#include "screen.h" -#include "cpu/capricorn/capricorn.h" -#include "speaker.h" -#include "machine/timer.h" -#include "sound/beep.h" -#include "sound/dac.h" -#include "sound/volt_reg.h" -#include "machine/1ma6.h" -#include "machine/hp80_optrom.h" -#include "softlist.h" -#include "machine/bankdev.h" -#include "bus/hp80_io/hp80_io.h" -#include "imagedev/bitbngr.h" - -// Debugging -#define VERBOSE 1 -#include "logmacro.h" - -// 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); - } - - template<typename T> void COPY_BIT(bool bit , T& w , unsigned n) - { - if (bit) { - BIT_SET(w , n); - } else { - BIT_CLR(w , n); - } - } -} - -// **** Constants **** -static constexpr unsigned MASTER_CLOCK = 9808000; -// Video memory is actually made of 16384 4-bit nibbles -static constexpr unsigned VIDEO_MEM_SIZE= 8192; -static constexpr unsigned ALPHA_MEM_SIZE= 4096; -static constexpr unsigned GRAPH_MEM_SIZE= 16384; -static constexpr unsigned CRT_STS_READY_BIT = 0; -static constexpr unsigned CRT_STS_DISPLAY_BIT = 1; -static constexpr unsigned CRT_STS_BUSY_BIT = 7; -static constexpr unsigned CRT_CTL_RD_RQ_BIT = 0; -static constexpr unsigned CRT_CTL_WIPEOUT_BIT = 1; -static constexpr unsigned CRT_CTL_POWERDN_BIT = 2; -static constexpr unsigned CRT_CTL_GRAPHICS_BIT = 7; -// Time to read/write a byte in video memory (in master clock cycles) -static constexpr unsigned CRT_RW_TIME = 96; -// Time taken by hw timer updating (semi-made up) (in usec) -static constexpr unsigned TIMER_BUSY_USEC = 128; -static constexpr unsigned IRQ_KEYBOARD_BIT = 0; -static constexpr unsigned IRQ_TIMER0_BIT = 1; -static constexpr unsigned TIMER_COUNT = 4; -static constexpr unsigned IRQ_IOP0_BIT = IRQ_TIMER0_BIT + TIMER_COUNT; -// Maximum count of I/O processors (the same thing as count of I/O slots) -static constexpr unsigned IOP_COUNT = 4; -static constexpr unsigned IRQ_BIT_COUNT = IRQ_IOP0_BIT + IOP_COUNT; -static constexpr unsigned NO_IRQ = IRQ_BIT_COUNT; - -// Internal printer has a moving printhead with 8 vertically-arranged resistors that print dots -// by heating thermal paper. The horizontal span of the printhead covers 224 columns. -// In alpha mode, each sweep prints up to 32 characters. Each character has a 8x7 cell. -// 8 pixels of cell height are covered by the printhead height, whereas 7 pixels of width -// allow for 32 characters on a row (224 = 32 * 7). -// After an alpha line is printed the paper advances by 10 pixel lines, so that a space of -// 2 lines is left between alpha lines. -// In graphic mode, printing starts at column 16 and covers 192 columns. So on each side of -// the printed area there's a 16-column wide margin (224 = 192 + 2 * 16). -// Once a graphic line is printed, paper advances by 8 pixel lines so that no space is inserted -// between successive sweeps. -// A full image of the graphic screen (256 x 192) is printed rotated 90 degrees clockwise. -// The printer controller chip (1MA9) has an embedded character generator ROM that is used -// when printing alpha lines. This ROM is also read by the CPU when drawing text on the graphic -// screen (BASIC "LABEL" instruction). -constexpr unsigned PRT_BUFFER_SIZE = 192; -constexpr unsigned PRTSTS_PAPER_OK_BIT = 7; -constexpr unsigned PRTSTS_DATARDY_BIT = 6; -constexpr unsigned PRTSTS_PRTRDY_BIT = 0; -constexpr unsigned PRTCTL_GRAPHIC_BIT = 7; -//constexpr unsigned PRTCTL_POWERUP_BIT = 6; -constexpr unsigned PRTCTL_READGEN_BIT = 5; -// Time to print a line (nominal speed is 2 lines/s) -constexpr unsigned PRT_BUSY_MSEC = 500; -// Horizontal start position of graphic print (16 columns from left-hand side) -constexpr unsigned PRT_GRAPH_OFFSET = 16; -// Height of printhead -constexpr unsigned PRT_PH_HEIGHT = 8; -// Height of alpha rows -constexpr unsigned PRT_ALPHA_HEIGHT = 10; -// Width of character cells -constexpr unsigned PRT_CELL_WIDTH = 7; -// Height of graphic rows -//constexpr unsigned PRT_GRAPH_HEIGHT = 8; -// Width of graphic sweeps -constexpr unsigned PRT_GRAPH_WIDTH = 192; -// Width of printhead sweeps -constexpr unsigned PRT_WIDTH = 224; - -// ************ -// hp85_state -// ************ -class hp85_state : public driver_device -{ -public: - hp85_state(const machine_config &mconfig, device_type type, const char *tag); - - void hp85(machine_config &config); - -private: - virtual void machine_start() override; - virtual void machine_reset() override; - - uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - DECLARE_WRITE_LINE_MEMBER(vblank_w); - - IRQ_CALLBACK_MEMBER(irq_callback); - - DECLARE_WRITE8_MEMBER(ginten_w); - DECLARE_WRITE8_MEMBER(gintdis_w); - DECLARE_READ8_MEMBER(keysts_r); - DECLARE_WRITE8_MEMBER(keysts_w); - DECLARE_READ8_MEMBER(keycod_r); - DECLARE_WRITE8_MEMBER(keycod_w); - DECLARE_READ8_MEMBER(crtc_r); - DECLARE_WRITE8_MEMBER(crtc_w); - DECLARE_READ8_MEMBER(clksts_r); - DECLARE_WRITE8_MEMBER(clksts_w); - DECLARE_READ8_MEMBER(clkdat_r); - DECLARE_WRITE8_MEMBER(clkdat_w); - DECLARE_WRITE8_MEMBER(prtlen_w); - DECLARE_READ8_MEMBER(prchar_r); - DECLARE_WRITE8_MEMBER(prchar_w); - DECLARE_READ8_MEMBER(prtsts_r); - DECLARE_WRITE8_MEMBER(prtctl_w); - DECLARE_WRITE8_MEMBER(prtdat_w); - DECLARE_WRITE8_MEMBER(rselec_w); - DECLARE_READ8_MEMBER(intrsc_r); - DECLARE_WRITE8_MEMBER(intrsc_w); - - TIMER_DEVICE_CALLBACK_MEMBER(kb_scan); - TIMER_DEVICE_CALLBACK_MEMBER(vm_timer); - TIMER_DEVICE_CALLBACK_MEMBER(timer_update); - TIMER_DEVICE_CALLBACK_MEMBER(clk_busy_timer); - TIMER_DEVICE_CALLBACK_MEMBER(prt_busy_timer); - - DECLARE_WRITE8_MEMBER(irl_w); - DECLARE_WRITE8_MEMBER(halt_w); - - void cpu_mem_map(address_map &map); - void rombank_mem_map(address_map &map); - - required_device<capricorn_cpu_device> m_cpu; - required_device<screen_device> m_screen; - required_device<palette_device> m_palette; - required_device<timer_device> m_vm_timer; - required_device<timer_device> m_clk_busy_timer; - required_device<timer_device> m_prt_busy_timer; - required_device<beep_device> m_beep; - required_device<dac_1bit_device> m_dac; - required_ioport m_io_key0; - required_ioport m_io_key1; - required_ioport m_io_key2; - required_ioport m_io_modkeys; - required_device_array<hp80_optrom_device , 6> m_rom_drawers; - required_device<address_map_bank_device> m_rombank; - required_device_array<hp80_io_slot_device , IOP_COUNT> m_io_slots; - required_device<bitbanger_device> m_prt_graph_out; - required_device<bitbanger_device> m_prt_alpha_out; - - // Character generators - required_region_ptr<uint8_t> m_chargen; - required_region_ptr<uint8_t> m_prt_chargen; - - bitmap_rgb32 m_bitmap; - std::vector<uint8_t> m_video_mem; - uint16_t m_crt_sad; - uint16_t m_crt_bad; - uint8_t m_crt_sts; - uint8_t m_crt_ctl; - uint8_t m_crt_read_byte; - uint8_t m_crt_write_byte; - bool m_global_int_en; - uint16_t m_int_serv; - unsigned m_top_pending; - uint16_t m_int_acked; - uint16_t m_int_en; - uint8_t m_halt_lines; - - // State of keyboard - ioport_value m_kb_state[ 3 ]; - bool m_kb_enable; - bool m_kb_pressed; - bool m_kb_flipped; - uint8_t m_kb_keycode; - - // Timers - typedef struct { - uint8_t m_timer_cnt[ 4 ]; - uint8_t m_timer_reg[ 4 ]; - bool m_timer_en; - bool m_timer_clr; - uint8_t m_digit_to_match; - } hw_timer_t; - hw_timer_t m_hw_timer[ TIMER_COUNT ]; - uint8_t m_timer_idx; - bool m_clk_busy; - - // Printer - uint8_t m_prtlen; - uint8_t m_prt_idx; - uint8_t m_prchar_r; - uint8_t m_prchar_w; - uint8_t m_prtsts; - uint8_t m_prtctl; - uint8_t m_prt_buffer[ PRT_BUFFER_SIZE ]; - - attotime time_to_video_mem_availability() const; - static void get_video_addr(uint16_t addr , uint16_t& byte_addr , bool& lsb_nibble); - uint8_t video_mem_r(uint16_t addr , uint16_t addr_mask) const; - void video_mem_w(uint16_t addr , uint16_t addr_mask , uint8_t data); - void video_mem_read(); - void video_mem_write(); - - bool kb_scan_ioport(ioport_value pressed , unsigned idx_base , uint8_t& keycode); - - void irq_w(unsigned n_irq , bool state); - void irq_en_w(unsigned n_irq , bool state); - void update_int_bits(); - void update_irl(); - - uint8_t get_prt_font(uint8_t ch , unsigned col) const; - void prt_format_alpha(unsigned row , uint8_t *pixel_row) const; - void prt_format_graphic(unsigned row , uint8_t *pixel_row) const; - void prt_output_row(const uint8_t *pixel_row); - void prt_do_printing(); -}; - -hp85_state::hp85_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig , type , tag), - m_cpu(*this , "cpu"), - m_screen(*this , "screen"), - m_palette(*this , "palette"), - m_vm_timer(*this , "vm_timer"), - m_clk_busy_timer(*this , "clk_busy_timer"), - m_prt_busy_timer(*this , "prt_busy_timer"), - m_beep(*this , "beeper"), - m_dac(*this , "dac"), - m_io_key0(*this , "KEY0"), - m_io_key1(*this , "KEY1"), - m_io_key2(*this , "KEY2"), - m_io_modkeys(*this, "MODKEYS"), - m_rom_drawers(*this , "drawer%u" , 1), - m_rombank(*this , "rombank"), - m_io_slots(*this , "slot%u" , 1), - m_prt_graph_out(*this , "prt_graphic"), - m_prt_alpha_out(*this , "prt_alpha"), - m_chargen(*this , "chargen"), - m_prt_chargen(*this , "prt_chargen") -{ -} - -void hp85_state::machine_start() -{ - m_screen->register_screen_bitmap(m_bitmap); - m_video_mem.resize(VIDEO_MEM_SIZE); -} - -void hp85_state::machine_reset() -{ - m_crt_sad = 0; - m_crt_bad = 0; - m_crt_sts = 0x7c; - m_crt_ctl = BIT_MASK<uint8_t>(CRT_CTL_POWERDN_BIT) | BIT_MASK<uint8_t>(CRT_CTL_WIPEOUT_BIT); - m_crt_read_byte = 0; - m_crt_write_byte = 0; - m_int_serv = 0; - m_top_pending = NO_IRQ; - m_int_acked = 0; - m_int_en = 0; - m_global_int_en = false; - m_kb_state[ 0 ] = 0; - m_kb_state[ 1 ] = 0; - m_kb_state[ 2 ] = 0; - m_kb_keycode = 0xff; - m_kb_enable = true; - m_kb_pressed = false; - m_kb_flipped = false; - for (auto& timer : m_hw_timer) { - for (unsigned i = 0; i < 4; i++) { - timer.m_timer_cnt[ i ] = 0; - timer.m_timer_reg[ i ] = 0; - } - timer.m_timer_en = false; - timer.m_timer_clr = false; - timer.m_digit_to_match = 0; - } - m_timer_idx = 0; - m_clk_busy = false; - update_irl(); - m_halt_lines = 0; - m_cpu->set_input_line(INPUT_LINE_HALT , CLEAR_LINE); - m_prtlen = 0; - m_prt_idx = PRT_BUFFER_SIZE; - m_prchar_r = 0; - m_prchar_w = 0; - m_prtsts = BIT_MASK<uint8_t>(PRTSTS_PAPER_OK_BIT) | BIT_MASK<uint8_t>(PRTSTS_PRTRDY_BIT); - m_prtctl = 0; - - // Load optional ROMs (if any) - // All entries in rombanks [01..FF] initially not present - m_rombank->space(AS_PROGRAM).unmap_read(HP80_OPTROM_SIZE * 1 , HP80_OPTROM_SIZE * 0x100 - 1); - for (auto& draw : m_rom_drawers) { - LOG("Loading opt ROM in drawer %s\n" , draw->tag()); - draw->install_read_handler(m_rombank->space(AS_PROGRAM)); - } - // Clear RSELEC - m_rombank->set_bank(0xff); - - // Mount I/O slots in address space - m_cpu->space(AS_PROGRAM).unmap_readwrite(0xff50 , 0xff5f); - for (auto& io : m_io_slots) { - io->install_read_write_handlers(m_cpu->space(AS_PROGRAM)); - } -} - -uint32_t hp85_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - copybitmap(bitmap, m_bitmap, 0, 0, 0, 0, cliprect); - return 0; -} - -WRITE_LINE_MEMBER(hp85_state::vblank_w) -{ - COPY_BIT(!state , m_crt_sts , CRT_STS_DISPLAY_BIT); - if (state) { - if (BIT(m_crt_ctl , CRT_CTL_WIPEOUT_BIT) || BIT(m_crt_ctl , CRT_CTL_POWERDN_BIT)) { - // Blank video - m_bitmap.fill(rgb_t::black()); - } else if (BIT(m_crt_ctl , CRT_CTL_GRAPHICS_BIT)) { - // Render graphic video - uint16_t video_start = m_crt_sad; - for (unsigned y = 0; y < 192; y++) { - for (unsigned x = 0; x < 256; x += 8) { - uint8_t pixels = video_mem_r(video_start , GRAPH_MEM_SIZE / 2 - 1); - video_start += 2; - for (unsigned sub_x = 0; sub_x < 8; sub_x++) { - m_bitmap.pix32(y , x + sub_x) = m_palette->pen(BIT(pixels , 7)); - pixels <<= 1; - } - } - } - } else { - // Render alpha video - uint16_t video_start = m_crt_sad; - for (unsigned row = 0; row < 192; row += 12) { - for (unsigned col = 0; col < 256; col += 8) { - uint8_t ch = video_mem_r(video_start , ALPHA_MEM_SIZE / 2 - 1); - video_start += 2; - for (unsigned sub_row = 0; sub_row < 12; sub_row++) { - uint8_t pixels; - if (sub_row < 8) { - pixels = m_chargen[ (ch & 0x7f) * 8 + sub_row ]; - } else if (BIT(ch , 7) && (sub_row == 9 || sub_row == 10)) { - // Underline - pixels = 0xfe; - } else { - pixels = 0; - } - for (unsigned sub_x = 0; sub_x < 8; sub_x++) { - m_bitmap.pix32(row + sub_row , col + sub_x) = m_palette->pen(BIT(pixels , 7)); - pixels <<= 1; - } - } - } - } - } - } -} - -// Vector table (indexed by bit no. in m_int_serv) -static const uint8_t vector_table[] = { - 0x04, // Keyboard - 0x08, // Timer 0 - 0x0a, // Timer 1 - 0x0c, // Timer 2 - 0x0e, // Timer 3 - 0x10, // Slot 1 - 0x10, // Slot 2 - 0x10, // Slot 3 - 0x10, // Slot 4 - 0x00 // No IRQ -}; - -IRQ_CALLBACK_MEMBER(hp85_state::irq_callback) -{ - logerror("IRQ ACK %u\n" , m_top_pending); - BIT_SET(m_int_acked , m_top_pending); - if (m_top_pending > IRQ_IOP0_BIT && m_top_pending < IRQ_BIT_COUNT) { - // Interrupts are disabled in all I/O translators of higher priority than - // the one being serviced - for (unsigned i = m_top_pending - 1; i >= IRQ_IOP0_BIT; i--) { - irq_en_w(i , false); - } - } - update_irl(); - return vector_table[ m_top_pending ]; -} - -WRITE8_MEMBER(hp85_state::ginten_w) -{ - m_global_int_en = true; - update_irl(); -} - -WRITE8_MEMBER(hp85_state::gintdis_w) -{ - m_global_int_en = false; - update_irl(); -} - -READ8_MEMBER(hp85_state::keysts_r) -{ - uint8_t res = 0; - if (BIT(m_int_en , IRQ_KEYBOARD_BIT)) { - BIT_SET(res , 0); - } - if (m_kb_pressed) { - BIT_SET(res , 1); - } - if (BIT(m_io_modkeys->read() , 0)) { - BIT_SET(res , 3); - } - if (m_global_int_en) { - BIT_SET(res , 7); - } - return res; -} - -WRITE8_MEMBER(hp85_state::keysts_w) -{ - if (BIT(data , 0)) { - irq_en_w(IRQ_KEYBOARD_BIT , true); - } else if (BIT(data , 1)) { - irq_en_w(IRQ_KEYBOARD_BIT , false); - } - m_dac->write(BIT(data , 5)); - m_beep->set_state(BIT(data , 6)); - if (BIT(data , 7)) { - m_kb_flipped = !m_kb_flipped; - } -} - -READ8_MEMBER(hp85_state::keycod_r) -{ - return m_kb_keycode; -} - -WRITE8_MEMBER(hp85_state::keycod_w) -{ - if (data == 1) { - irq_w(IRQ_KEYBOARD_BIT , false); - m_kb_enable = true; - } -} - -READ8_MEMBER(hp85_state::crtc_r) -{ - uint8_t res = 0xff; - - // Read from CRT controller (1MA5) - switch (offset) { - case 0: - // CRTSAD: write-only - break; - - case 1: - // CRTBAD: write-only - break; - - case 2: - // CRTSTS - res = m_crt_sts; - break; - - case 3: - // CRTDAT - res = m_crt_read_byte; - break; - } - return res; -} - -WRITE8_MEMBER(hp85_state::crtc_w) -{ - // Write to CRT controller (1MA5) - uint8_t burst_idx = m_cpu->flatten_burst(); - switch (offset) { - case 0: - // CRTSAD - if (burst_idx == 1) { - m_crt_sad = ((uint16_t)data << 8) | (m_crt_sad & 0xff); - } else if (burst_idx == 0) { - m_crt_sad = (m_crt_sad & 0xff00) | data; - } - break; - - case 1: - // CRTBAD - if (burst_idx == 1) { - m_crt_bad = ((uint16_t)data << 8) | (m_crt_bad & 0xff); - } else if (burst_idx == 0) { - m_crt_bad = (m_crt_bad & 0xff00) | data; - } - break; - - case 2: - // CRTCTL - m_crt_ctl = data; - if (BIT(m_crt_ctl , CRT_CTL_RD_RQ_BIT)) { - BIT_CLR(m_crt_sts , CRT_STS_READY_BIT); - BIT_SET(m_crt_sts , CRT_STS_BUSY_BIT); - attotime vm_av = time_to_video_mem_availability(); - m_vm_timer->adjust(vm_av + attotime::from_ticks(CRT_RW_TIME , MASTER_CLOCK)); - } - break; - - case 3: - // CRTDAT - { - m_crt_write_byte = data; - BIT_CLR(m_crt_sts , CRT_STS_READY_BIT); - BIT_SET(m_crt_sts , CRT_STS_BUSY_BIT); - attotime vm_av = time_to_video_mem_availability(); - m_vm_timer->adjust(vm_av + attotime::from_ticks(CRT_RW_TIME , MASTER_CLOCK)); - } - break; - } -} - -READ8_MEMBER(hp85_state::clksts_r) -{ - uint8_t res = 0; - for (unsigned i = 0; i < TIMER_COUNT; i++) { - if (BIT(m_int_en , IRQ_TIMER0_BIT + i)) { - BIT_SET(res , i); - } - } - if (!m_clk_busy) { - BIT_SET(res , 7); - } - //logerror("CLKSTS R=%02x\n" , res); - return res; -} - -WRITE8_MEMBER(hp85_state::clksts_w) -{ - // logerror("CLKSTS W=%02x\n" , data); - if (data == 0x0c) { - // Set test mode (see timer_update) - auto& timer = m_hw_timer[ m_timer_idx ]; - timer.m_digit_to_match = 1; - timer.m_timer_cnt[ 0 ] = timer.m_timer_reg[ 0 ]; - timer.m_timer_cnt[ 1 ] = timer.m_timer_reg[ 1 ]; - timer.m_timer_cnt[ 2 ] = timer.m_timer_reg[ 2 ]; - timer.m_timer_cnt[ 3 ] = timer.m_timer_reg[ 3 ]; - logerror("Test mode enabled for timer %u\n" , m_timer_idx); - } else { - m_timer_idx = (data >> 6) & 3; - auto& timer = m_hw_timer[ m_timer_idx ]; - if (BIT(data , 0)) { - // Disable timer irq - irq_en_w(IRQ_TIMER0_BIT + m_timer_idx , false); - } else if (BIT(data , 1)) { - // Enable timer irq - irq_en_w(IRQ_TIMER0_BIT + m_timer_idx , true); - } - if (BIT(data , 2)) { - // Stop timer - timer.m_timer_en = false; - } else if (BIT(data , 3)) { - // Start timer - timer.m_timer_en = true; - } - if (BIT(data , 4) || (BIT(data , 3) && timer.m_digit_to_match)) { - // Clear timer - timer.m_timer_clr = true; - // Disable test mode - timer.m_digit_to_match = 0; - } - if (BIT(data , 5)) { - // Clear timer irq - irq_w(IRQ_TIMER0_BIT + m_timer_idx , false); - } - update_int_bits(); - } -} - -READ8_MEMBER(hp85_state::clkdat_r) -{ - uint8_t res; - unsigned burst_idx = m_cpu->flatten_burst(); - if (burst_idx < 4) { - res = m_hw_timer[ m_timer_idx ].m_timer_cnt[ burst_idx ]; - } else { - // What happens when loading more than 4 bytes from timers? - logerror("Reading more than 4 bytes from timer %u\n" , m_timer_idx); - res = 0; - } - //logerror("CLKDAT R %u=%02x\n" , burst_idx , res); - return res; -} - -WRITE8_MEMBER(hp85_state::clkdat_w) -{ - unsigned burst_idx = m_cpu->flatten_burst(); - //logerror("CLKDAT W %u=%02x\n" , burst_idx , data); - if (burst_idx < 4) { - m_hw_timer[ m_timer_idx ].m_timer_reg[ burst_idx ] = data; - } else { - // What happens when storing more than 4 bytes into timers? - logerror("Writing more than 4 bytes into timer %u\n" , m_timer_idx); - } -} - -WRITE8_MEMBER(hp85_state::prtlen_w) -{ - //LOG("PRTLEN=%u\n" , data); - if (data == 0) { - // Advance paper - memset(m_prt_buffer , 0 , sizeof(m_prt_buffer)); - m_prt_idx = 0; - prt_do_printing(); - } else { - m_prtlen = data; - if (!BIT(m_prtctl , PRTCTL_GRAPHIC_BIT)) { - m_prt_idx = 0; - } - } -} - -READ8_MEMBER(hp85_state::prchar_r) -{ - return m_prchar_r; -} - -WRITE8_MEMBER(hp85_state::prchar_w) -{ - m_prchar_w = data; -} - -READ8_MEMBER(hp85_state::prtsts_r) -{ - return m_prtsts; -} - -WRITE8_MEMBER(hp85_state::prtctl_w) -{ - //LOG("PRTCTL=%02x\n" , data); - m_prtctl = data; - BIT_SET(m_prtsts , PRTSTS_PRTRDY_BIT); - if (BIT(m_prtctl , PRTCTL_READGEN_BIT)) { - // Reading printer char. gen. - m_prchar_r = get_prt_font(m_prchar_w , m_prtctl & 7); - BIT_SET(m_prtsts , PRTSTS_DATARDY_BIT); - } else { - BIT_CLR(m_prtsts , PRTSTS_DATARDY_BIT); - } - if (BIT(m_prtctl , PRTCTL_GRAPHIC_BIT)) { - m_prt_idx = 0; - } -} - -WRITE8_MEMBER(hp85_state::prtdat_w) -{ - m_cpu->flatten_burst(); - //LOG("PRTDAT=%02x\n" , data); - if (m_prt_idx < PRT_BUFFER_SIZE) { - m_prt_buffer[ m_prt_idx++ ] = data; - if (m_prt_idx == PRT_BUFFER_SIZE || (!BIT(m_prtctl , PRTCTL_GRAPHIC_BIT) && m_prt_idx >= m_prtlen)) { - //LOG("Print\n"); - prt_do_printing(); - m_prt_idx = PRT_BUFFER_SIZE; - } - } -} - -TIMER_DEVICE_CALLBACK_MEMBER(hp85_state::prt_busy_timer) -{ - BIT_SET(m_prtsts , PRTSTS_PRTRDY_BIT); -} - -WRITE8_MEMBER(hp85_state::rselec_w) -{ - m_rombank->set_bank(data); -} - -READ8_MEMBER(hp85_state::intrsc_r) -{ - if (m_top_pending >= IRQ_IOP0_BIT && m_top_pending < IRQ_BIT_COUNT && BIT(m_int_acked , m_top_pending)) { - return (uint8_t)m_io_slots[ m_top_pending - IRQ_IOP0_BIT ]->get_base_addr(); - } else { - // Probably.. - return 0xff; - } -} - -WRITE8_MEMBER(hp85_state::intrsc_w) -{ - if (m_top_pending >= IRQ_IOP0_BIT && m_top_pending < IRQ_BIT_COUNT && BIT(m_int_acked , m_top_pending)) { - // Clear interrupt request in the slot being serviced - m_io_slots[ m_top_pending - IRQ_IOP0_BIT ]->clear_service(); - } - for (auto& iop: m_io_slots) { - iop->inten(); - } - for (unsigned i = IRQ_IOP0_BIT; i < (IRQ_IOP0_BIT + IOP_COUNT); i++) { - irq_en_w(i , true); - } -} - -// Outer index: key position [0..79] = r * 8 + c -// Inner index: SHIFT state (0 = no SHIFT, 1 = SHIFT) -static const uint8_t keyboard_table[ 80 ][ 2 ] = { - // -- SHIFT - { 0xa2 , 0xac }, // 0,0: Down / Auto - { 0xa1 , 0xa5 }, // 0,1: Up / Home - { 0x83 , 0x87 }, // 0,2: k4 / k8 - { 0x82 , 0x86 }, // 0,3: k3 / k7 - { 0x81 , 0x85 }, // 0,4: k2 / k6 - { 0x80 , 0x84 }, // 0,5: k1 / k5 - { 0x96 , 0x60 }, // 0,6: LABEL KEY - { 0xff , 0xff }, // 0,7: N/U - { 0x38 , 0x2a }, // 1,0: 8 - { 0x37 , 0x26 }, // 1,1: 7 - { 0x36 , 0x5e }, // 1,2: 6 - { 0x35 , 0x25 }, // 1,3: 5 - { 0x34 , 0x24 }, // 1,4: 4 - { 0x33 , 0x23 }, // 1,5: 3 - { 0x32 , 0x40 }, // 1,6: 2 - { 0x31 , 0x21 }, // 1,7: 1 - { 0x49 , 0x69 }, // 2,0: I - { 0x55 , 0x75 }, // 2,1: U - { 0x59 , 0x79 }, // 2,2: Y - { 0x54 , 0x74 }, // 2,3: T - { 0x52 , 0x72 }, // 2,4: R - { 0x45 , 0x65 }, // 2,5: E - { 0x57 , 0x77 }, // 2,6: W - { 0x51 , 0x71 }, // 2,7: Q - { 0x4b , 0x6b }, // 3,0: K - { 0x4a , 0x6a }, // 3,1: J - { 0x48 , 0x68 }, // 3,2: H - { 0x47 , 0x67 }, // 3,3: G - { 0x46 , 0x66 }, // 3,4: F - { 0x44 , 0x64 }, // 3,5: D - { 0x53 , 0x73 }, // 3,6: S - { 0x41 , 0x61 }, // 3,7: A - { 0x4d , 0x6d }, // 4,0: M - { 0x4e , 0x6e }, // 4,1: N - { 0x42 , 0x62 }, // 4,2: B - { 0x56 , 0x76 }, // 4,3: V - { 0x43 , 0x63 }, // 4,4: C - { 0x58 , 0x78 }, // 4,5: X - { 0x5a , 0x7a }, // 4,6: Z - { 0x20 , 0x20 }, // 4,7: Space - { 0x2c , 0x3c }, // 5,0: , - { 0x2e , 0x3e }, // 5,1: . - { 0x2f , 0x3f }, // 5,2: / ? - { 0x8e , 0x90 }, // 5,3: PAUSE / STEP - { 0x8d , 0x8d }, // 5,4: RUN - { 0x2b , 0x7f }, // 5,5: KP + - { 0x2d , 0x7d }, // 5,6: KP - - { 0x2a , 0x7e }, // 5,7: KP * - { 0x4c , 0x6c }, // 6,0: L - { 0x3b , 0x3a }, // 6,1: ; - { 0x27 , 0x22 }, // 6,2: ' " - { 0x9a , 0x9a }, // 6,3: END LINE - { 0x94 , 0x95 }, // 6,4: LIST / P LST - { 0xff , 0xff }, // 6,5: N/U - { 0xff , 0xff }, // 6,6: N/U - { 0x2f , 0x7b }, // 6,7: KP / - { 0x4f , 0x6f }, // 7,0: O - { 0x50 , 0x70 }, // 7,1: P - { 0x28 , 0x5b }, // 7,2: ( [ - { 0x29 , 0x5d }, // 7,3: ) ] - { 0x8f , 0xad }, // 7,4: CONT / SCRATCH - { 0xa0 , 0x92 }, // 7,5: -LINE / CLEAR - { 0x29 , 0x8c }, // 7,6: ) INIT - { 0xff , 0xff }, // 7,7: N/U - { 0x39 , 0x28 }, // 8,0: 9 - { 0x30 , 0x29 }, // 8,1: 0 - { 0x2d , 0x5f }, // 8,2: - _ - { 0x3d , 0x2b }, // 8,3: = + - { 0x5c , 0x7c }, // 8,4: \ | - { 0x99 , 0x9b }, // 8,5: BS - { 0x28 , 0x8b }, // 8,6: ( RESET - { 0x5e , 0xa6 }, // 8,7: ^ / RESLT - { 0x9c , 0x93 }, // 9,0: LEFT / GRAPH - { 0x9d , 0x89 }, // 9,1: RIGHT / COPY - { 0xa3 , 0xa3 }, // 9,2: RPL / INS - { 0xa4 , 0xa8 }, // 9,3: -CHAR / DEL - { 0x9f , 0x9e }, // 9,4: ROLL - { 0xaa , 0x88 }, // 9,5: LOAD / REW - { 0xa9 , 0x91 }, // 9,6: STORE / TEST - { 0x8a , 0x8a } // 9,7: PAPER ADVANCE -}; - -bool hp85_state::kb_scan_ioport(ioport_value pressed , unsigned idx_base , uint8_t& keycode) -{ - while (pressed) { - unsigned bit_no = 31 - count_leading_zeros(pressed); - uint8_t unshifted = keyboard_table[ idx_base + bit_no ][ 0 ]; - bool isalpha = unshifted >= 'A' && unshifted <= 'Z'; - ioport_value modifiers = m_io_modkeys->read(); - bool shift = BIT(modifiers , 0); - bool caps_lock = BIT(modifiers , 1); - bool control = BIT(modifiers , 2); - if (isalpha) { - shift = shift ^ caps_lock ^ m_kb_flipped; - } - keycode = keyboard_table[ idx_base + bit_no ][ shift ]; - uint8_t tmp = isalpha ? unshifted : keycode; - if (control && (tmp & 0xe0) == 0x40) { - keycode &= ~0xe0; - } - if (keycode != 0xff) { - return true; - } - ioport_value mask = BIT_MASK<ioport_value>(bit_no); - pressed &= ~mask; - } - return false; -} - -TIMER_DEVICE_CALLBACK_MEMBER(hp85_state::kb_scan) -{ - ioport_value input[ 3 ]; - input[ 0 ] = m_io_key0->read(); - input[ 1 ] = m_io_key1->read(); - input[ 2 ] = m_io_key2->read(); - - if (m_kb_enable) { - uint8_t keycode; - - bool got_key = kb_scan_ioport(input[ 0 ] & ~m_kb_state[ 0 ] , 0 , keycode) || - kb_scan_ioport(input[ 1 ] & ~m_kb_state[ 1 ] , 32 , keycode) || - kb_scan_ioport(input[ 2 ] & ~m_kb_state[ 2 ] , 64 , keycode); - - if (got_key) { - m_kb_keycode = keycode; - irq_w(IRQ_KEYBOARD_BIT , true); - m_kb_enable = false; - } - } - m_kb_pressed = input[ 0 ] != 0 || - input[ 1 ] != 0 || - input[ 2 ] != 0; - - m_kb_state[ 0 ] = input[ 0 ]; - m_kb_state[ 1 ] = input[ 1 ]; - m_kb_state[ 2 ] = input[ 2 ]; -} - -TIMER_DEVICE_CALLBACK_MEMBER(hp85_state::vm_timer) -{ - if (BIT(m_crt_ctl , CRT_CTL_RD_RQ_BIT)) { - video_mem_read(); - } else { - video_mem_write(); - } - BIT_CLR(m_crt_sts , CRT_STS_BUSY_BIT); -} - -TIMER_DEVICE_CALLBACK_MEMBER(hp85_state::timer_update) -{ - for (unsigned i = 0; i < TIMER_COUNT; i++) { - auto& timer = m_hw_timer[ i ]; - if (timer.m_timer_clr) { - timer.m_timer_clr = false; - timer.m_timer_cnt[ 0 ] = 0; - timer.m_timer_cnt[ 1 ] = 0; - timer.m_timer_cnt[ 2 ] = 0; - timer.m_timer_cnt[ 3 ] = 0; - } else if (timer.m_timer_en) { - if (timer.m_digit_to_match) { - // Timers have an undocumented mode (used by test "J" of service ROM) - // where the counter has to match in sequence all digits of register - // in order to raise an interrupt. In other words interrupt is generated - // after a number of updates that's equal to the sum of all digits in - // register + 1. My opinion is that people at HP designed this mode to - // allow all digits in a timer to be tested quickly. Without this special - // mode it takes more than 27 hours to check that all digits increment - // correctly and that there are no stuck bits. - // From an operative point of view, we copy register into counter when - // this special mode is activated (see clksts_w). Then, at each update, - // we decrement the digit of counter pointed to by m_digit_to_match (1 = - // least significant digit). Each time a digit "borrows" (i.e. it decrements - // from 0 to 9), we move on to digit at left. When m_digit_to_match reaches - // 9, interrupt is raised and the timer stops. - // At this point counter is always "99999999". - if (timer.m_digit_to_match < 9) { - while (true) { - bool borrow = false; - uint8_t b = timer.m_timer_cnt[ (timer.m_digit_to_match - 1) / 2 ]; - if (BIT(timer.m_digit_to_match , 0)) { - // Least significant digit in b - if (b & 0x0f) { - b--; - } else { - b = (b & 0xf0) | 9; - borrow = true; - } - } else { - // Most significant digit in b - if (b & 0xf0) { - b -= 0x10; - } else { - b = 0x99; - borrow = true; - } - } - timer.m_timer_cnt[ (timer.m_digit_to_match - 1) / 2 ] = b; - if (borrow) { - timer.m_digit_to_match++; - if (timer.m_digit_to_match == 9) { - irq_w(IRQ_TIMER0_BIT + i , true); - break; - } - } else { - break; - } - } - } - } else { - // Standard timer mode - // Increment all active timers by 1 - bool carry = true; - for (unsigned idx = 0; idx < 4 && carry; idx++) { - carry = false; - uint8_t b = timer.m_timer_cnt[ idx ]; - b++; - if ((b & 0xf) > 9) { - b += 6; - if (b >= 0xa0) { - b += 0x60; - carry = true; - } - } - timer.m_timer_cnt[ idx ] = b; - } - if (timer.m_timer_cnt[ 0 ] == timer.m_timer_reg[ 0 ] && - timer.m_timer_cnt[ 1 ] == timer.m_timer_reg[ 1 ] && - timer.m_timer_cnt[ 2 ] == timer.m_timer_reg[ 2 ] && - timer.m_timer_cnt[ 3 ] == timer.m_timer_reg[ 3 ]) { - timer.m_timer_cnt[ 0 ] = 0; - timer.m_timer_cnt[ 1 ] = 0; - timer.m_timer_cnt[ 2 ] = 0; - timer.m_timer_cnt[ 3 ] = 0; - irq_w(IRQ_TIMER0_BIT + i , true); - } - } - } - } - m_clk_busy = true; - m_clk_busy_timer->adjust(attotime::from_usec(TIMER_BUSY_USEC)); -} - -TIMER_DEVICE_CALLBACK_MEMBER(hp85_state::clk_busy_timer) -{ - m_clk_busy = false; -} - -WRITE8_MEMBER(hp85_state::irl_w) -{ - //LOG("irl_w %u=%u\n" , offset , data); - irq_w(offset + IRQ_IOP0_BIT , data != 0); -} - -WRITE8_MEMBER(hp85_state::halt_w) -{ - //LOG("halt_w %u=%u\n" , offset , data); - bool prev_halt = m_halt_lines != 0; - COPY_BIT(data != 0 , m_halt_lines , offset); - bool new_halt = m_halt_lines != 0; - if (prev_halt != new_halt) { - LOG("halt=%d hl=%x\n" , new_halt , m_halt_lines); - m_cpu->set_input_line(INPUT_LINE_HALT , new_halt); - } -} - -attotime hp85_state::time_to_video_mem_availability() const -{ - if (BIT(m_crt_ctl , CRT_CTL_WIPEOUT_BIT) || BIT(m_crt_ctl , CRT_CTL_POWERDN_BIT)) { - // Blank video, immediate access - return attotime::zero; - } else if (m_screen->vblank()) { - // Vertical blanking, immediate access - return attotime::zero; - } else { - // In the active part, wait until vertical blanking - return m_screen->time_until_vblank_start(); - } -} - -void hp85_state::get_video_addr(uint16_t addr , uint16_t& byte_addr , bool& lsb_nibble) -{ - byte_addr = (addr / 2) & (VIDEO_MEM_SIZE - 1); - lsb_nibble = BIT(addr , 0); -} - -uint8_t hp85_state::video_mem_r(uint16_t addr , uint16_t addr_mask) const -{ - uint16_t byte_addr; - bool lsb_nibble; - - get_video_addr(addr , byte_addr , lsb_nibble); - - byte_addr &= addr_mask; - - uint8_t res; - - if (lsb_nibble) { - res = (m_video_mem[ byte_addr ] & 0x0f) << 4; - byte_addr = (byte_addr + 1) & addr_mask; - res |= (m_video_mem[ byte_addr ] & 0xf0) >> 4; - } else { - res = m_video_mem[ byte_addr ]; - } - - return res; -} - -void hp85_state::video_mem_w(uint16_t addr , uint16_t addr_mask , uint8_t data) -{ - uint16_t byte_addr; - bool lsb_nibble; - - get_video_addr(addr , byte_addr , lsb_nibble); - - byte_addr &= addr_mask; - - if (lsb_nibble) { - m_video_mem[ byte_addr ] = (m_video_mem[ byte_addr ] & 0xf0) | (data >> 4); - byte_addr = (byte_addr + 1) & addr_mask; - m_video_mem[ byte_addr ] = (m_video_mem[ byte_addr ] & 0x0f) | (data << 4); - } else { - m_video_mem[ byte_addr ] = data; - } -} - -void hp85_state::video_mem_read() -{ - uint16_t mask; - - if (BIT(m_crt_ctl , CRT_CTL_GRAPHICS_BIT)) { - mask = GRAPH_MEM_SIZE / 2 - 1; - } else { - mask = ALPHA_MEM_SIZE / 2 - 1; - } - m_crt_read_byte = video_mem_r(m_crt_bad , mask); - m_crt_bad += 2; - BIT_CLR(m_crt_ctl , CRT_CTL_RD_RQ_BIT); - BIT_SET(m_crt_sts , CRT_STS_READY_BIT); -} - -void hp85_state::video_mem_write() -{ - uint16_t mask; - - if (BIT(m_crt_ctl , CRT_CTL_GRAPHICS_BIT)) { - mask = GRAPH_MEM_SIZE / 2 - 1; - } else { - mask = ALPHA_MEM_SIZE / 2 - 1; - } - video_mem_w(m_crt_bad , mask , m_crt_write_byte); - m_crt_bad += 2; -} - -void hp85_state::irq_w(unsigned n_irq , bool state) -{ - //LOG("irq_w %u=%d GIE=%d SRV=%03x ACK=%03x IE=%03x\n" , n_irq , state , m_global_int_en , m_int_serv , m_int_acked , m_int_en); - if (state && !BIT(m_int_serv , n_irq)) { - // Set service request - BIT_SET(m_int_serv , n_irq); - BIT_CLR(m_int_acked , n_irq); - } else if (!state && BIT(m_int_serv , n_irq)) { - // Clear service request - BIT_CLR(m_int_serv , n_irq); - BIT_CLR(m_int_acked , n_irq); - } - update_int_bits(); -} - -void hp85_state::irq_en_w(unsigned n_irq , bool state) -{ - COPY_BIT(state , m_int_en , n_irq); - update_int_bits(); -} - -void hp85_state::update_int_bits() -{ - uint16_t irqs = m_int_en & m_int_serv; - for (m_top_pending = 0; m_top_pending < IRQ_BIT_COUNT && !BIT(irqs , m_top_pending); m_top_pending++) { - } - update_irl(); -} - -void hp85_state::update_irl() -{ - //LOG("irl GIE=%d top=%u ACK=%03x\n" , m_global_int_en , m_top_pending , m_int_acked); - m_cpu->set_input_line(0 , m_global_int_en && m_top_pending < IRQ_BIT_COUNT && !BIT(m_int_acked , m_top_pending)); -} - -uint8_t hp85_state::get_prt_font(uint8_t ch , unsigned col) const -{ - // Bit 7: pixel @ top - // Bit 0: pixel @ bottom - uint8_t column = m_prt_chargen[ (((unsigned)ch & 0x7f) << 3) | col ]; - if (BIT(ch , 7)) { - // Underline - BIT_SET(column , 0); - } - return column; -} - -void hp85_state::prt_format_alpha(unsigned row , uint8_t *pixel_row) const -{ - memset(pixel_row , 0 , PRT_WIDTH); - for (unsigned i = 0; i < m_prt_idx; i++) { - for (unsigned j = 0; j < PRT_CELL_WIDTH; j++) { - uint8_t pixel_col = get_prt_font(m_prt_buffer[ i ] , j); - *pixel_row++ = BIT(pixel_col , 7 - row); - } - } -} - -void hp85_state::prt_format_graphic(unsigned row , uint8_t *pixel_row) const -{ - memset(pixel_row , 0 , PRT_WIDTH); - pixel_row += PRT_GRAPH_OFFSET; - for (unsigned i = 0; i < PRT_GRAPH_WIDTH; i++) { - *pixel_row++ = BIT(m_prt_buffer[ i ] , 7 - row); - } -} - -void hp85_state::prt_output_row(const uint8_t *pixel_row) -{ - for (unsigned i = 0; i < PRT_WIDTH; i++) { - m_prt_graph_out->output(*pixel_row++ != 0 ? '*' : ' '); - } - m_prt_graph_out->output('\n'); -} - -void hp85_state::prt_do_printing() -{ - uint8_t pixel_row[ PRT_WIDTH ]; - for (unsigned row = 0; row < PRT_PH_HEIGHT; row++) { - if (BIT(m_prtctl , PRTCTL_GRAPHIC_BIT)) { - prt_format_graphic(row , pixel_row); - } else { - prt_format_alpha(row , pixel_row); - } - prt_output_row(pixel_row); - } - if (!BIT(m_prtctl , PRTCTL_GRAPHIC_BIT)) { - // Dump the text line to alpha bitbanger - for (unsigned i = 0; i < m_prt_idx; i++) { - m_prt_alpha_out->output(m_prt_buffer[ i ]); - } - m_prt_alpha_out->output('\n'); - // Add 2 empty lines - memset(pixel_row , 0 , PRT_WIDTH); - for (unsigned i = 0; i < (PRT_ALPHA_HEIGHT - PRT_PH_HEIGHT); i++) { - prt_output_row(pixel_row); - } - } - // Start busy timer - BIT_CLR(m_prtsts , PRTSTS_PRTRDY_BIT); - m_prt_busy_timer->adjust(attotime::from_msec(PRT_BUSY_MSEC)); -} - -#define IOP_MASK(x) BIT_MASK<ioport_value>((x)) - -static INPUT_PORTS_START(hp85) - // Keyboard is arranged in a matrix of 10 rows and 8 columns. In addition there are 3 keys with - // dedicated input lines: SHIFT, SHIFT LOCK & CONTROL. - // A key on row "r"=[0..9] and column "c"=[0..7] is mapped to bit "b" of KEY"n" input, where - // n = r / 4 - // b = (r % 4) * 8 + c - PORT_START("KEY0") - PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_NAME("Down AUTO") // 0,0: Down / Auto - PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_NAME("Up Home") // 0,1: Up / Home - PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_NAME("k4 k8") // 0,2: k4 / k8 - PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_NAME("k3 k7") // 0,3: k3 / k7 - PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_NAME("k2 k6") // 0,4: k2 / k6 - PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_NAME("k1 k5") // 0,5: k1 / k5 - PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LABEL KEY") // 0,6: LABEL KEY - PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,7: N/U - PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') // 1,0: 8 - PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') // 1,1: 7 - PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') // 1,2: 6 - PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 1,3: 5 - PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 1,4: 4 - PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 1,5: 3 - PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') // 1,6: 2 - PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 1,7: 1 - PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 2,0: I - PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 2,1: U - PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 2,2: Y - PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 2,3: T - PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 2,4: R - PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 2,5: E - PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 2,6: W - PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 2,7: Q - PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 3,0: K - PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') // 3,1: J - PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 3,2: H - PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 3,3: G - PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 3,4: F - PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') // 3,5: D - PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 3,6: S - PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 3,7: A - - PORT_START("KEY1") - PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 4,0: M - PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 4,1: N - PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 4,2: B - PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 4,3: V - PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') // 4,4: C - PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') // 4,5: X - PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 4,6: Z - PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 4,7: Space - PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') // 5,0: , - PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') // 5,1: . - PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') // 5,2: / ? - PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("PAUSE STEP") // 5,3: PAUSE / STEP - PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("RUN") // 5,4: RUN - PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(PLUS_PAD)) PORT_NAME("KP +") // 5,5: KP + - PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) PORT_NAME("KP -") // 5,6: KP - - PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ASTERISK) PORT_CHAR(UCHAR_MAMEKEY(ASTERISK)) PORT_NAME("KP *") // 5,7: KP * (not sure) - PORT_BIT(IOP_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 6,0: L - PORT_BIT(IOP_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') // 6,1: ; - PORT_BIT(IOP_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') // 6,2: ' " - PORT_BIT(IOP_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_NAME("END LINE") // 6,3: END LINE - PORT_BIT(IOP_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LIST P LST") // 6,4: LIST / P LST - PORT_BIT(IOP_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED) // 6,5: N/U - PORT_BIT(IOP_MASK(22) , IP_ACTIVE_HIGH , IPT_UNUSED) // 6,6: N/U - PORT_BIT(IOP_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH_PAD) PORT_CHAR(UCHAR_MAMEKEY(SLASH_PAD)) PORT_NAME("KP /") // 6,7: KP / - PORT_BIT(IOP_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 7,0: O - PORT_BIT(IOP_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') // 7,1: P - PORT_BIT(IOP_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('(') PORT_CHAR('[') // 7,2: ( [ - PORT_BIT(IOP_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(')') PORT_CHAR(']') // 7,3: ) ] - PORT_BIT(IOP_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("CONT SCRATCH") // 7,4: CONT / SCRATCH - PORT_BIT(IOP_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("-LINE CLEAR") // 7,5: -LINE / CLEAR - PORT_BIT(IOP_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME(") INIT") // 7,6: ) INIT - PORT_BIT(IOP_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,7: N/U - - PORT_START("KEY2") - PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') // 8,0: 9 - PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') // 8,1: 0 - PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 8,2: - _ - PORT_BIT(IOP_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') // 8,3: = + - PORT_BIT(IOP_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\\') PORT_CHAR('|') // 8,4: \ | - PORT_BIT(IOP_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) // 8,5: BS - PORT_BIT(IOP_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("( RESET") // 8,6: ( RESET - PORT_BIT(IOP_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("^ RESLT") // 8,7: ^ / RESLT - PORT_BIT(IOP_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_NAME("Left GRAPH") // 9,0: LEFT / GRAPH - PORT_BIT(IOP_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_NAME("Right COPY") // 9,1: RIGHT / COPY - PORT_BIT(IOP_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("RPL INS") // 9,2: RPL / INS - PORT_BIT(IOP_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("-CHAR DEL") // 9,3: -CHAR / DEL - PORT_BIT(IOP_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PGDN) PORT_NAME("ROLL") // 9,4: ROLL - PORT_BIT(IOP_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LOAD REW") // 9,5: LOAD / REW - PORT_BIT(IOP_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("STORE TEST") // 9,6: STORE / TEST - PORT_BIT(IOP_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("PAPER ADVANCE") // 9,7: PAPER ADVANCE - - PORT_START("MODKEYS") - PORT_BIT(IOP_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // Shift - PORT_BIT(IOP_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_NAME("Shift lock") // Shift lock - PORT_BIT(IOP_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) // Control - -INPUT_PORTS_END - -void hp85_state::cpu_mem_map(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x5fff).rom(); - map(0x6000, 0x7fff).m(m_rombank, FUNC(address_map_bank_device::amap8)); - map(0x8000, 0xbfff).ram(); - map(0xff00, 0xff00).w(FUNC(hp85_state::ginten_w)); - map(0xff01, 0xff01).w(FUNC(hp85_state::gintdis_w)); - map(0xff02, 0xff02).rw(FUNC(hp85_state::keysts_r), FUNC(hp85_state::keysts_w)); - map(0xff03, 0xff03).rw(FUNC(hp85_state::keycod_r), FUNC(hp85_state::keycod_w)); - map(0xff04, 0xff07).rw(FUNC(hp85_state::crtc_r), FUNC(hp85_state::crtc_w)); - map(0xff08, 0xff09).rw("tape", FUNC(hp_1ma6_device::reg_r), FUNC(hp_1ma6_device::reg_w)); - map(0xff0a, 0xff0a).rw(FUNC(hp85_state::clksts_r), FUNC(hp85_state::clksts_w)); - map(0xff0b, 0xff0b).rw(FUNC(hp85_state::clkdat_r), FUNC(hp85_state::clkdat_w)); - map(0xff0c, 0xff0c).w(FUNC(hp85_state::prtlen_w)); - map(0xff0d, 0xff0d).rw(FUNC(hp85_state::prchar_r), FUNC(hp85_state::prchar_w)); - map(0xff0e, 0xff0e).rw(FUNC(hp85_state::prtsts_r), FUNC(hp85_state::prtctl_w)); - map(0xff0f, 0xff0f).w(FUNC(hp85_state::prtdat_w)); - map(0xff18, 0xff18).w(FUNC(hp85_state::rselec_w)); - map(0xff40, 0xff40).rw(FUNC(hp85_state::intrsc_r), FUNC(hp85_state::intrsc_w)); -} - -void hp85_state::rombank_mem_map(address_map &map) -{ - map.unmap_value_high(); - // ROM in bank 0 is always present (it's part of system ROMs) - map(0x0000, 0x1fff).rom(); -} - -void hp85_state::hp85(machine_config &config) -{ - HP_CAPRICORN(config, m_cpu, MASTER_CLOCK / 16); - m_cpu->set_addrmap(AS_PROGRAM, &hp85_state::cpu_mem_map); - m_cpu->set_irq_acknowledge_callback(FUNC(hp85_state::irq_callback)); - - ADDRESS_MAP_BANK(config, "rombank").set_map(&hp85_state::rombank_mem_map).set_options(ENDIANNESS_LITTLE, 8, 21, HP80_OPTROM_SIZE); - - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_raw(MASTER_CLOCK / 2 , 312 , 0 , 256 , 256 , 0 , 192); - m_screen->set_screen_update(FUNC(hp85_state::screen_update)); - m_screen->screen_vblank().set(FUNC(hp85_state::vblank_w)); - PALETTE(config, m_palette, palette_device::MONOCHROME); - TIMER(config, m_vm_timer).configure_generic(FUNC(hp85_state::vm_timer)); - - // No idea at all about the actual keyboard scan frequency - TIMER(config, "kb_timer").configure_periodic(FUNC(hp85_state::kb_scan), attotime::from_hz(100)); - - // Hw timers are updated at 1 kHz rate - TIMER(config, "hw_timer").configure_periodic(FUNC(hp85_state::timer_update), attotime::from_hz(1000)); - TIMER(config, m_clk_busy_timer).configure_generic(FUNC(hp85_state::clk_busy_timer)); - TIMER(config, m_prt_busy_timer).configure_generic(FUNC(hp85_state::prt_busy_timer)); - - // Beeper - SPEAKER(config, "mono").front_center(); - DAC_1BIT(config, m_dac , 0).add_route(ALL_OUTPUTS, "mono", 0.5, AUTO_ALLOC_INPUT, 0); - voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref")); - vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); - BEEP(config, m_beep, MASTER_CLOCK / 8192).add_route(ALL_OUTPUTS, "mono", 0.5, AUTO_ALLOC_INPUT, 0); - - // Tape drive - HP_1MA6(config, "tape", 0); - - // Optional ROMs - HP80_OPTROM(config, m_rom_drawers[0]); - HP80_OPTROM(config, m_rom_drawers[1]); - HP80_OPTROM(config, m_rom_drawers[2]); - HP80_OPTROM(config, m_rom_drawers[3]); - HP80_OPTROM(config, m_rom_drawers[4]); - HP80_OPTROM(config, m_rom_drawers[5]); - - // I/O slots - HP80_IO_SLOT(config, m_io_slots[0]).set_slot_no(0); - m_io_slots[0]->irl_cb().set(FUNC(hp85_state::irl_w)); - m_io_slots[0]->halt_cb().set(FUNC(hp85_state::halt_w)); - HP80_IO_SLOT(config, m_io_slots[1]).set_slot_no(1); - m_io_slots[1]->irl_cb().set(FUNC(hp85_state::irl_w)); - m_io_slots[1]->halt_cb().set(FUNC(hp85_state::halt_w)); - HP80_IO_SLOT(config, m_io_slots[2]).set_slot_no(2); - m_io_slots[2]->irl_cb().set(FUNC(hp85_state::irl_w)); - m_io_slots[2]->halt_cb().set(FUNC(hp85_state::halt_w)); - HP80_IO_SLOT(config, m_io_slots[3]).set_slot_no(3); - m_io_slots[3]->irl_cb().set(FUNC(hp85_state::irl_w)); - m_io_slots[3]->halt_cb().set(FUNC(hp85_state::halt_w)); - - // Printer output - BITBANGER(config, m_prt_graph_out, 0); - BITBANGER(config, m_prt_alpha_out, 0); - - SOFTWARE_LIST(config, "optrom_list").set_original("hp85_rom"); -} - -ROM_START(hp85) - ROM_REGION(0x6000 , "cpu" , 0) - ROM_LOAD("romsys1.bin" , 0x0000 , 0x2000 , CRC(7724b1e9) SHA1(7836195389de2ac0eab7199835f5dc8f7dc41729)) - ROM_LOAD("romsys2.bin" , 0x2000 , 0x2000 , CRC(50a85263) SHA1(3cf1d08749103ee245d572550ba1b053ffc7ef57)) - ROM_LOAD("romsys3.bin" , 0x4000 , 0x2000 , CRC(0df385f0) SHA1(4c5ce5afd28f6d776f16cabbbbcc09769ff306b7)) - - ROM_REGION(0x2000 , "rombank" , 0) - ROM_LOAD("rom000.bin" , 0 , 0x2000 , CRC(e13b8ae3) SHA1(2374618d25d1a000ddb534ae4f55ebd98ce0fff3)) - - ROM_REGION(0x400 , "chargen" , 0) - ROM_LOAD("chrgen.bin" , 0 , 0x400 , CRC(9c402544) SHA1(32634fc73c1544aeeefda62ebb10349c5b40729f)) - - ROM_REGION(0x400 , "prt_chargen" , 0) - ROM_LOAD("prt_chrgen.bin" , 0 , 0x400 , CRC(abeaba27) SHA1(fbf6bdd5d96df6aa5963f8cdfdeb180402b1cc85)) -ROM_END - -COMP( 1980, hp85, 0, 0, hp85, hp85, hp85_state, empty_init, "HP", "HP 85", 0) |