// license:BSD-3-Clause // copyright-holders:Nathan Woods,Frank Palazzolo #include "emu.h" #include "video/stic.h" #include "includes/intv.h" #include "cpu/cp1610/cp1610.h" WRITE16_MEMBER( intv_state::intvkbd_dualport16_w ) { unsigned char *RAM; COMBINE_DATA(&m_intvkbd_dualport_ram[offset]); /* copy the LSB over to the 6502 OP RAM, in case they are opcodes */ RAM = m_region_keyboard->base(); RAM[offset] = (UINT8) (data >> 0); } READ8_MEMBER( intv_state::intvkbd_dualport8_lsb_r ) { return (UINT8) (m_intvkbd_dualport_ram[offset] >> 0); } WRITE8_MEMBER( intv_state::intvkbd_dualport8_lsb_w ) { unsigned char *RAM; m_intvkbd_dualport_ram[offset] &= ~0x00FF; m_intvkbd_dualport_ram[offset] |= ((UINT16) data) << 0; /* copy over to the 6502 OP RAM, in case they are opcodes */ RAM = m_region_keyboard->base(); RAM[offset] = data; } READ8_MEMBER( intv_state::intvkbd_dualport8_msb_r ) { unsigned char rv; if (offset < 0x100) { switch (offset) { case 0x000: rv = m_io_test->read() & 0x80; logerror("TAPE: Read %02x from 0x40%02x - XOR Data?\n",rv,offset); break; case 0x001: rv = (m_io_test->read() & 0x40) << 1; logerror("TAPE: Read %02x from 0x40%02x - Sense 1?\n",rv,offset); break; case 0x002: rv = (m_io_test->read() & 0x20) << 2; logerror("TAPE: Read %02x from 0x40%02x - Sense 2?\n",rv,offset); break; case 0x003: rv = (m_io_test->read() & 0x10) << 3; logerror("TAPE: Read %02x from 0x40%02x - Tape Present\n",rv,offset); break; case 0x004: rv = (m_io_test->read() & 0x08) << 4; logerror("TAPE: Read %02x from 0x40%02x - Comp (339/1)\n",rv,offset); break; case 0x005: rv = (m_io_test->read() & 0x04) << 5; logerror("TAPE: Read %02x from 0x40%02x - Clocked Comp (339/13)\n",rv,offset); break; case 0x006: if (m_sr1_int_pending) rv = 0x00; else rv = 0x80; logerror("TAPE: Read %02x from 0x40%02x - SR1 Int Pending\n",rv,offset); break; case 0x007: if (m_tape_int_pending) rv = 0x00; else rv = 0x80; logerror("TAPE: Read %02x from 0x40%02x - Tape? Int Pending\n",rv,offset); break; case 0x060: /* Keyboard Read */ rv = 0xff; if (m_intvkbd_keyboard_col < 10) rv = m_intv_keyboard[m_intvkbd_keyboard_col]->read(); break; case 0x80: rv = 0x00; logerror("TAPE: Read %02x from 0x40%02x, clear tape int pending\n",rv,offset); m_tape_int_pending = 0; break; case 0xa0: rv = 0x00; logerror("TAPE: Read %02x from 0x40%02x, clear SR1 int pending\n",rv,offset); m_sr1_int_pending = 0; break; case 0xc0: case 0xc1: case 0xc2: case 0xc3: case 0xc4: case 0xc5: case 0xc6: case 0xc7: case 0xc8: case 0xc9: case 0xca: case 0xcb: case 0xcc: case 0xcd: case 0xce: case 0xcf: /* TMS9927 regs */ rv = intvkbd_tms9927_r(space, offset-0xc0); break; default: rv = (m_intvkbd_dualport_ram[offset]&0x0300)>>8; logerror("Unknown read %02x from 0x40%02x\n",rv,offset); break; } return rv; } else return (m_intvkbd_dualport_ram[offset]&0x0300)>>8; } static const char *const tape_motor_mode_desc[8] = { "IDLE", "IDLE", "IDLE", "IDLE", "EJECT", "PLAY/RECORD", "REWIND", "FF" }; WRITE8_MEMBER( intv_state::intvkbd_dualport8_msb_w ) { unsigned int mask; if (offset < 0x100) { switch (offset) { case 0x020: m_tape_motor_mode &= 3; if (data & 1) m_tape_motor_mode |= 4; logerror("TAPE: Motor Mode: %s\n",tape_motor_mode_desc[m_tape_motor_mode]); break; case 0x021: m_tape_motor_mode &= 5; if (data & 1) m_tape_motor_mode |= 2; logerror("TAPE: Motor Mode: %s\n",tape_motor_mode_desc[m_tape_motor_mode]); break; case 0x022: m_tape_motor_mode &= 6; if (data & 1) m_tape_motor_mode |= 1; logerror("TAPE: Motor Mode: %s\n",tape_motor_mode_desc[m_tape_motor_mode]); break; case 0x023: case 0x024: case 0x025: case 0x026: case 0x027: m_tape_unknown_write[offset - 0x23] = (data & 1); break; case 0x040: m_tape_unknown_write[5] = (data & 1); break; case 0x041: if (data & 1) logerror("TAPE: Tape Interrupts Enabled\n"); else logerror("TAPE: Tape Interrupts Disabled\n"); m_tape_interrupts_enabled = (data & 1); break; case 0x042: if (data & 1) logerror("TAPE: Cart Bus Interrupts Disabled\n"); else logerror("TAPE: Cart Bus Interrupts Enabled\n"); break; case 0x043: if (data & 0x01) m_intvkbd_text_blanked = 0; else m_intvkbd_text_blanked = 1; break; case 0x044: m_intvkbd_keyboard_col &= 0x0e; m_intvkbd_keyboard_col |= (data&0x01); break; case 0x045: m_intvkbd_keyboard_col &= 0x0d; m_intvkbd_keyboard_col |= ((data&0x01)<<1); break; case 0x046: m_intvkbd_keyboard_col &= 0x0b; m_intvkbd_keyboard_col |= ((data&0x01)<<2); break; case 0x047: m_intvkbd_keyboard_col &= 0x07; m_intvkbd_keyboard_col |= ((data&0x01)<<3); break; case 0x80: logerror("TAPE: Write to 0x40%02x, clear tape int pending\n",offset); m_tape_int_pending = 0; break; case 0xa0: logerror("TAPE: Write to 0x40%02x, clear SR1 int pending\n",offset); m_sr1_int_pending = 0; break; case 0xc0: case 0xc1: case 0xc2: case 0xc3: case 0xc4: case 0xc5: case 0xc6: case 0xc7: case 0xc8: case 0xc9: case 0xca: case 0xcb: case 0xcc: case 0xcd: case 0xce: case 0xcf: /* TMS9927 regs */ intvkbd_tms9927_w(space, offset-0xc0, data); break; default: logerror("%04X: Unknown write %02x to 0x40%02x\n",space.device().safe_pc(),data,offset); break; } } else { mask = m_intvkbd_dualport_ram[offset] & 0x00ff; m_intvkbd_dualport_ram[offset] = mask | ((data<<8)&0x0300); } } READ16_MEMBER( intv_state::intv_stic_r ) { if (m_bus_copy_mode || !m_stic->read_stic_handshake()) return m_stic->read(space, offset, mem_mask); else return offset; } WRITE16_MEMBER( intv_state::intv_stic_w ) { if (m_bus_copy_mode || !m_stic->read_stic_handshake()) m_stic->write(space, offset, data, mem_mask); } READ16_MEMBER( intv_state::intv_gram_r ) { //logerror("read: %d = GRAM(%d)\n",state->m_gram[offset],offset); if (m_bus_copy_mode || !m_stic->read_stic_handshake()) return m_stic->gram_read(space, offset, mem_mask); else return offset; } WRITE16_MEMBER( intv_state::intv_gram_w ) { if (m_bus_copy_mode || !m_stic->read_stic_handshake()) m_stic->gram_write(space, offset, data, mem_mask); } READ16_MEMBER( intv_state::intv_ram8_r ) { //logerror("%x = ram8_r(%x)\n",state->m_ram8[offset],offset); return (int)m_ram8[offset]; } WRITE16_MEMBER( intv_state::intv_ram8_w ) { //logerror("ram8_w(%x) = %x\n",offset,data); m_ram8[offset] = data&0xff; } READ16_MEMBER( intv_state::intv_ram16_r ) { //logerror("%x = ram16_r(%x)\n",state->m_ram16[offset],offset); return (int)m_ram16[offset]; } WRITE16_MEMBER( intv_state::intv_ram16_w ) { //logerror("%g: WRITING TO GRAM offset = %d\n",machine.time(),offset); //logerror("ram16_w(%x) = %x\n",offset,data); m_ram16[offset] = data & 0xffff; } READ8_MEMBER( intv_state::intvkb_iocart_r ) { if (m_iocart1->exists()) return m_iocart1->read_rom(space, offset, mem_mask); else if (m_iocart2->exists()) return m_iocart2->read_rom(space, offset, mem_mask); else return m_region_keyboard->u8(offset + 0xe000); } /* Set Reset and INTR/INTRM Vector */ void intv_state::machine_reset() { m_maincpu->set_input_line_vector(CP1610_RESET, 0x1000); /* These are actually the same vector, and INTR is unused */ m_maincpu->set_input_line_vector(CP1610_INT_INTRM, 0x1004); m_maincpu->set_input_line_vector(CP1610_INT_INTR, 0x1004); /* Set initial PC */ m_maincpu->set_state_int(CP1610_R7, 0x1000); } void intv_state::machine_start() { // TODO: split these for intvkbd & intvecs?? for (int i = 0; i < 4; i++) { char str[8]; sprintf(str, "KEYPAD%i", i + 1); m_keypad[i] = ioport(str); } for (int i = 0; i < 4; i++) { char str[6]; sprintf(str, "DISC%i", i + 1); m_disc[i] = ioport(str); } for (int i = 0; i < 4; i++) { char str[7]; sprintf(str, "DISCX%i", i + 1); m_discx[i] = ioport(str); sprintf(str, "DISCY%i", i + 1); m_discy[i] = ioport(str); } save_item(NAME(m_bus_copy_mode)); save_item(NAME(m_backtab_row)); save_item(NAME(m_ram16)); save_item(NAME(m_sr1_int_pending)); save_item(NAME(m_ram8)); // intvkbd if (m_is_keybd) { for (int i = 0; i < 10; i++) { char str[5]; sprintf(str, "ROW%i", i); m_intv_keyboard[i] = ioport(str); } save_item(NAME(m_intvkbd_text_blanked)); save_item(NAME(m_intvkbd_keyboard_col)); save_item(NAME(m_tape_int_pending)); save_item(NAME(m_tape_interrupts_enabled)); save_item(NAME(m_tape_unknown_write)); save_item(NAME(m_tape_motor_mode)); save_item(NAME(m_tms9927_num_rows)); save_item(NAME(m_tms9927_cursor_col)); save_item(NAME(m_tms9927_cursor_row)); save_item(NAME(m_tms9927_last_row)); } if (m_cart && m_cart->exists()) { // RAM switch (m_cart->get_type()) { case INTV_RAM: m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xd000, 0xd7ff, read16_delegate(FUNC(intv_cart_slot_device::read_ram),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_ram),(intv_cart_slot_device*)m_cart)); break; case INTV_GFACT: m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x8800, 0x8fff, read16_delegate(FUNC(intv_cart_slot_device::read_ram),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_ram),(intv_cart_slot_device*)m_cart)); break; case INTV_VOICE: m_cart->late_subslot_setup(); m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x0080, 0x0081, read16_delegate(FUNC(intv_cart_slot_device::read_speech),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_speech),(intv_cart_slot_device*)m_cart)); // passthru for RAM-equipped carts m_maincpu->space(AS_PROGRAM).install_write_handler(0x8800, 0x8fff, write16_delegate(FUNC(intv_cart_slot_device::write_88),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0xd000, 0xd7ff, write16_delegate(FUNC(intv_cart_slot_device::write_d0),(intv_cart_slot_device*)m_cart)); break; case INTV_ECS: m_cart->late_subslot_setup(); m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x00f0, 0x00ff, read16_delegate(FUNC(intv_cart_slot_device::read_ay),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_ay),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x4000, 0x47ff, read16_delegate(FUNC(intv_cart_slot_device::read_ram),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_ram),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0x2000, 0x2fff, write16_delegate(FUNC(intv_cart_slot_device::write_rom20),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0x7000, 0x7fff, write16_delegate(FUNC(intv_cart_slot_device::write_rom70),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0xe000, 0xefff, write16_delegate(FUNC(intv_cart_slot_device::write_rome0),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0xf000, 0xffff, write16_delegate(FUNC(intv_cart_slot_device::write_romf0),(intv_cart_slot_device*)m_cart)); // passthru for Intellivoice expansion m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x0080, 0x0081, read16_delegate(FUNC(intv_cart_slot_device::read_speech),(intv_cart_slot_device*)m_cart), write16_delegate(FUNC(intv_cart_slot_device::write_speech),(intv_cart_slot_device*)m_cart)); // passthru for RAM-equipped carts m_maincpu->space(AS_PROGRAM).install_write_handler(0x8800, 0x8fff, write16_delegate(FUNC(intv_cart_slot_device::write_88),(intv_cart_slot_device*)m_cart)); m_maincpu->space(AS_PROGRAM).install_write_handler(0xd000, 0xd7ff, write16_delegate(FUNC(intv_cart_slot_device::write_d0),(intv_cart_slot_device*)m_cart)); break; } m_cart->save_ram(); } } TIMER_CALLBACK_MEMBER(intv_state::intv_interrupt_complete) { m_maincpu->set_input_line(CP1610_INT_INTRM, CLEAR_LINE); m_bus_copy_mode = 0; } TIMER_CALLBACK_MEMBER(intv_state::intv_btb_fill) { UINT8 row = m_backtab_row; //m_maincpu->adjust_icount(-STIC_ROW_FETCH); for (int column = 0; column < STIC_BACKTAB_WIDTH; column++) m_stic->write_to_btb(row, column, m_ram16[column + row * STIC_BACKTAB_WIDTH]); m_backtab_row += 1; } INTERRUPT_GEN_MEMBER(intv_state::intv_interrupt) { int delay = m_stic->read_row_delay(); m_maincpu->set_input_line(CP1610_INT_INTRM, ASSERT_LINE); m_sr1_int_pending = 1; m_bus_copy_mode = 1; m_backtab_row = 0; m_maincpu->adjust_icount(-(12*STIC_ROW_BUSRQ+STIC_FRAME_BUSRQ)); // Account for stic cycle stealing timer_set(m_maincpu->cycles_to_attotime(STIC_VBLANK_END), TIMER_INTV_INTERRUPT_COMPLETE); for (int row = 0; row < STIC_BACKTAB_HEIGHT; row++) { timer_set(m_maincpu->cycles_to_attotime(STIC_FIRST_FETCH-STIC_FRAME_BUSRQ+STIC_CYCLES_PER_SCANLINE*STIC_Y_SCALE*delay + (STIC_CYCLES_PER_SCANLINE*STIC_Y_SCALE*STIC_CARD_HEIGHT - STIC_ROW_BUSRQ)*row), TIMER_INTV_BTB_FILL); } if (delay == 0) { m_maincpu->adjust_icount(-STIC_ROW_BUSRQ); // extra row fetch occurs if vertical delay == 0 } m_stic->screenrefresh(); } /* hand 0 == left, 1 == right, 2 == ECS hand controller 1, 3 == ECS hand controller 2 */ UINT8 intv_state::intv_control_r(int hand) { static const UINT8 keypad_table[] = { 0xFF, 0x3F, 0x9F, 0x5F, 0xD7, 0xB7, 0x77, 0xDB, 0xBB, 0x7B, 0xDD, 0xBD, 0x7D, 0xDE, 0xBE, 0x7E }; static const UINT8 disc_table[] = { 0xF3, 0xE3, 0xE7, 0xF7, 0xF6, 0xE6, 0xEE, 0xFE, 0xFC, 0xEC, 0xED, 0xFD, 0xF9, 0xE9, 0xEB, 0xFB }; static const UINT8 discyx_table[5][5] = { { 0xE3, 0xF3, 0xFB, 0xEB, 0xE9 }, { 0xE7, 0xE3, 0xFB, 0xE9, 0xF9 }, { 0xF7, 0xF7, 0xFF, 0xFD, 0xFD }, { 0xF6, 0xE6, 0xFE, 0xEC, 0xED }, { 0xE6, 0xEE, 0xFE, 0xFC, 0xEC } }; int x, y; UINT8 rv = 0xFF; /* keypad */ x = m_keypad[hand]->read(); for (y = 0; y < 16; y++) { if (x & (1 << y)) { rv &= keypad_table[y]; } } switch ((m_io_options->read() >> hand) & 1) { case 0: /* disc == digital */ default: x = m_disc[hand]->read(); for (y = 0; y < 16; y++) { if (x & (1 << y)) { rv &= disc_table[y]; } } break; case 1: /* disc == _fake_ analog */ x = m_discx[hand]->read(); y = m_discy[hand]->read(); rv &= discyx_table[y / 32][x / 32]; } return rv; } READ8_MEMBER( intv_state::intv_left_control_r ) { return intv_control_r(0); } READ8_MEMBER( intv_state::intv_right_control_r ) { return intv_control_r(1); }