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-rw-r--r--src/mame/drivers/hp80.cpp790
1 files changed, 790 insertions, 0 deletions
diff --git a/src/mame/drivers/hp80.cpp b/src/mame/drivers/hp80.cpp
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index 00000000000..7f26e69180f
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+++ b/src/mame/drivers/hp80.cpp
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+// 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 "screen.h"
+#include "cpu/capricorn/capricorn.h"
+
+// Debugging
+#define VERBOSE 1
+#include "logmacro.h"
+
+// Bit manipulation
+namespace {
+ static constexpr unsigned BIT_MASK(unsigned n)
+ {
+ return 1U << n;
+ }
+
+ template<typename T> void BIT_CLR(T& w , unsigned n)
+ {
+ w &= ~(T)BIT_MASK(n);
+ }
+
+ template<typename T> void BIT_SET(T& w , unsigned n)
+ {
+ w |= (T)BIT_MASK(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;
+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;
+static constexpr unsigned IOP_COUNT = 0;
+static constexpr unsigned IRQ_BIT_COUNT = IRQ_IOP0_BIT + IOP_COUNT;
+static constexpr unsigned NO_IRQ = IRQ_BIT_COUNT;
+
+// ************
+// hp85_state
+// ************
+class hp85_state : public driver_device
+{
+public:
+ hp85_state(const machine_config &mconfig, device_type type, const char *tag);
+
+ 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_WRITE8_MEMBER(rselec_w);
+
+ TIMER_DEVICE_CALLBACK_MEMBER(kb_scan);
+protected:
+ required_device<capricorn_cpu_device> m_cpu;
+ required_device<screen_device> m_screen;
+ required_device<palette_device> m_palette;
+ required_region_ptr<uint8_t> m_rom00;
+ required_memory_bank m_rombank;
+ required_ioport m_io_key0;
+ required_ioport m_io_key1;
+ required_ioport m_io_key2;
+ required_ioport m_io_modkeys;
+
+ // Character generator
+ required_region_ptr<uint8_t> m_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_empty_bank[ 0x2000 ];
+ bool m_global_int_en;
+ uint16_t m_int_req;
+ uint16_t m_int_serv;
+ unsigned m_top_pending;
+ uint16_t m_int_acked;
+ uint16_t m_int_en;
+
+ // 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;
+
+ 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(uint8_t data);
+
+ 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();
+};
+
+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_rom00(*this , "rom00"),
+ m_rombank(*this , "rombank"),
+ m_io_key0(*this , "KEY0"),
+ m_io_key1(*this , "KEY1"),
+ m_io_key2(*this , "KEY2"),
+ m_io_modkeys(*this, "MODKEYS"),
+ m_chargen(*this , "chargen")
+{
+}
+
+void hp85_state::machine_start()
+{
+ machine().first_screen()->register_screen_bitmap(m_bitmap);
+ m_video_mem.resize(VIDEO_MEM_SIZE);
+
+ // ROM in bank 0 is always present (it's part of system ROMs)
+ m_rombank->configure_entry(0 , m_rom00);
+
+ memset(&m_empty_bank[ 0 ] , 0xff , sizeof(m_empty_bank));
+
+ // All other entries in rombank (01-FF) not present for now
+ m_rombank->configure_entries(1 , 255 , m_empty_bank , 0);
+}
+
+void hp85_state::machine_reset()
+{
+ m_crt_sad = 0;
+ m_crt_bad = 0;
+ m_crt_sts = 0x7c;
+ m_crt_ctl = BIT_MASK(CRT_CTL_POWERDN_BIT) | BIT_MASK(CRT_CTL_WIPEOUT_BIT);
+ m_crt_read_byte = 0;
+ // Clear RSELEC
+ m_rombank->set_entry(0xff);
+
+ m_int_req = 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;
+ update_irl();
+}
+
+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
+};
+
+IRQ_CALLBACK_MEMBER(hp85_state::irq_callback)
+{
+ BIT_SET(m_int_acked , m_top_pending);
+ 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)
+{
+ logerror("KEYSTS W=%02x\n" , data);
+ if (BIT(data , 0)) {
+ irq_en_w(IRQ_KEYBOARD_BIT , true);
+ } else if (BIT(data , 1)) {
+ irq_en_w(IRQ_KEYBOARD_BIT , false);
+ }
+ // TODO: beeper
+ 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)
+{
+ logerror("KEYCOD W=%02x\n" , data);
+ 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;
+ }
+ logerror("RD @%u = %02x\n" , offset , res);
+ return res;
+}
+
+WRITE8_MEMBER(hp85_state::crtc_w)
+{
+ // Write to CRT controller (1MA5)
+ logerror("WR @%u = %02x\n" , offset , data);
+ 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;
+ }
+ logerror("SAD=%04x m=%u\n" , m_crt_sad , burst_idx);
+ 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;
+ }
+ logerror("BAD=%04x m=%u\n" , m_crt_bad , burst_idx);
+ break;
+
+ case 2:
+ // CRTCTL
+ m_crt_ctl = data;
+ if (BIT(m_crt_ctl , CRT_CTL_RD_RQ_BIT)) {
+ video_mem_read();
+ }
+ break;
+
+ case 3:
+ // CRTDAT
+ video_mem_write(data);
+ break;
+ }
+}
+
+WRITE8_MEMBER(hp85_state::rselec_w)
+{
+ m_rombank->set_entry(data);
+}
+
+// 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(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) {
+ logerror("key %02x\n" , keycode);
+ 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 ];
+}
+
+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_SET(m_crt_sts , CRT_STS_READY_BIT);
+}
+
+void hp85_state::video_mem_write(uint8_t data)
+{
+ uint16_t mask;
+
+ logerror("VM @%04x=%02x\n" , m_crt_bad , data);
+ 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 , data);
+ m_crt_bad += 2;
+}
+
+void hp85_state::irq_w(unsigned n_irq , bool state)
+{
+ 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()
+{
+ m_cpu->set_input_line(0 , m_global_int_en && m_top_pending < IRQ_BIT_COUNT && !BIT(m_int_acked , m_top_pending));
+}
+
+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(BIT_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(BIT_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(BIT_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(BIT_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(BIT_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(BIT_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(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LABEL KEY") // 0,6: LABEL KEY
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_UNUSED) // 0,7: N/U
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') // 1,0: 8
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') // 1,1: 7
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') // 1,2: 6
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 1,3: 5
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 1,4: 4
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 1,5: 3
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') // 1,6: 2
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 1,7: 1
+ PORT_BIT(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 2,0: I
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 2,1: U
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 2,2: Y
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 2,3: T
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 2,4: R
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 2,5: E
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 2,6: W
+ PORT_BIT(BIT_MASK(23) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 2,7: Q
+ PORT_BIT(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 3,0: K
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J') // 3,1: J
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 3,2: H
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 3,3: G
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 3,4: F
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D') // 3,5: D
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 3,6: S
+ PORT_BIT(BIT_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(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 4,0: M
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 4,1: N
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 4,2: B
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 4,3: V
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C') // 4,4: C
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X') // 4,5: X
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 4,6: Z
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 4,7: Space
+ PORT_BIT(BIT_MASK(8) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') // 5,0: ,
+ PORT_BIT(BIT_MASK(9) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') // 5,1: .
+ PORT_BIT(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') // 5,2: / ?
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("PAUSE STEP") // 5,3: PAUSE / STEP
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("RUN") // 5,4: RUN
+ PORT_BIT(BIT_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(BIT_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(BIT_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(BIT_MASK(16) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 6,0: L
+ PORT_BIT(BIT_MASK(17) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') // 6,1: ;
+ PORT_BIT(BIT_MASK(18) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') // 6,2: ' "
+ PORT_BIT(BIT_MASK(19) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_NAME("END LINE") // 6,3: END LINE
+ PORT_BIT(BIT_MASK(20) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LIST P LST") // 6,4: LIST / P LST
+ PORT_BIT(BIT_MASK(21) , IP_ACTIVE_HIGH , IPT_UNUSED) // 6,5: N/U
+ PORT_BIT(BIT_MASK(22) , IP_ACTIVE_HIGH , IPT_UNUSED) // 6,6: N/U
+ PORT_BIT(BIT_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(BIT_MASK(24) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 7,0: O
+ PORT_BIT(BIT_MASK(25) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P') // 7,1: P
+ PORT_BIT(BIT_MASK(26) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('(') PORT_CHAR('[') // 7,2: ( [
+ PORT_BIT(BIT_MASK(27) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(')') PORT_CHAR(']') // 7,3: ) ]
+ PORT_BIT(BIT_MASK(28) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("CONT SCRATCH") // 7,4: CONT / SCRATCH
+ PORT_BIT(BIT_MASK(29) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("-LINE CLEAR") // 7,5: -LINE / CLEAR
+ PORT_BIT(BIT_MASK(30) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME(") INIT") // 7,6: ) INIT
+ PORT_BIT(BIT_MASK(31) , IP_ACTIVE_HIGH , IPT_UNUSED) // 7,7: N/U
+
+ PORT_START("KEY2")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') // 8,0: 9
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') // 8,1: 0
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 8,2: - _
+ PORT_BIT(BIT_MASK(3) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') // 8,3: = +
+ PORT_BIT(BIT_MASK(4) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\\') PORT_CHAR('|') // 8,4: \ |
+ PORT_BIT(BIT_MASK(5) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) // 8,5: BS
+ PORT_BIT(BIT_MASK(6) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("( RESET") // 8,6: ( RESET
+ PORT_BIT(BIT_MASK(7) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("^ RESLT") // 8,7: ^ / RESLT
+ PORT_BIT(BIT_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(BIT_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(BIT_MASK(10) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("RPL INS") // 9,2: RPL / INS
+ PORT_BIT(BIT_MASK(11) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("-CHAR DEL") // 9,3: -CHAR / DEL
+ PORT_BIT(BIT_MASK(12) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_PGDN) PORT_NAME("ROLL") // 9,4: ROLL
+ PORT_BIT(BIT_MASK(13) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("LOAD REW") // 9,5: LOAD / REW
+ PORT_BIT(BIT_MASK(14) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("STORE TEST") // 9,6: STORE / TEST
+ PORT_BIT(BIT_MASK(15) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_NAME("PAPER ADVANCE") // 9,7: PAPER ADVANCE
+
+ PORT_START("MODKEYS")
+ PORT_BIT(BIT_MASK(0) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // Shift
+ PORT_BIT(BIT_MASK(1) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_NAME("Shift lock") // Shift lock
+ PORT_BIT(BIT_MASK(2) , IP_ACTIVE_HIGH , IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) // Control
+
+INPUT_PORTS_END
+
+static ADDRESS_MAP_START(cpu_mem_map , AS_PROGRAM , 8 , hp85_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000 , 0x5fff) AM_ROM
+ AM_RANGE(0x6000 , 0x7fff) AM_ROMBANK("rombank")
+ AM_RANGE(0x8000 , 0xbfff) AM_RAM
+ AM_RANGE(0xff00 , 0xff00) AM_WRITE(ginten_w)
+ AM_RANGE(0xff01 , 0xff01) AM_WRITE(gintdis_w)
+ AM_RANGE(0xff02 , 0xff02) AM_READWRITE(keysts_r , keysts_w)
+ AM_RANGE(0xff03 , 0xff03) AM_READWRITE(keycod_r , keycod_w)
+ AM_RANGE(0xff04 , 0xff07) AM_READWRITE(crtc_r , crtc_w)
+ AM_RANGE(0xff18 , 0xff18) AM_WRITE(rselec_w)
+ADDRESS_MAP_END
+
+static MACHINE_CONFIG_START(hp85)
+ MCFG_CPU_ADD("cpu" , HP_CAPRICORN , MASTER_CLOCK / 16)
+ MCFG_CPU_PROGRAM_MAP(cpu_mem_map)
+ MCFG_CPU_IRQ_ACKNOWLEDGE_DRIVER(hp85_state , irq_callback)
+
+ MCFG_SCREEN_ADD("screen" , RASTER)
+ MCFG_SCREEN_RAW_PARAMS(MASTER_CLOCK / 2 , 312 , 0 , 256 , 256 , 0 , 192)
+ MCFG_SCREEN_UPDATE_DRIVER(hp85_state , screen_update)
+ MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(hp85_state, vblank_w))
+ MCFG_PALETTE_ADD_MONOCHROME("palette")
+
+ // No idea at all about the actual keyboard scan frequency
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("kb_timer" , hp85_state , kb_scan , attotime::from_hz(100))
+MACHINE_CONFIG_END
+
+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 , "rom00" , 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_END
+
+COMP(1980 , hp85 , 0 , 0 , hp85 , hp85 , hp85_state , 0 , "HP" , "HP 85" , MACHINE_NO_SOUND)