summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/machine/orion.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mess/machine/orion.c')
-rw-r--r--src/mess/machine/orion.c594
1 files changed, 0 insertions, 594 deletions
diff --git a/src/mess/machine/orion.c b/src/mess/machine/orion.c
deleted file mode 100644
index 4556778597b..00000000000
--- a/src/mess/machine/orion.c
+++ /dev/null
@@ -1,594 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Miodrag Milanovic
-/***************************************************************************
-
- Orion machine driver by Miodrag Milanovic
-
- 22/04/2008 Orion Pro added
- 02/04/2008 Preliminary driver.
-
-****************************************************************************/
-
-
-#include "emu.h"
-#include "cpu/i8085/i8085.h"
-#include "imagedev/cassette.h"
-#include "sound/speaker.h"
-#include "includes/orion.h"
-
-#define SCREEN_WIDTH_384 48
-#define SCREEN_WIDTH_480 60
-#define SCREEN_WIDTH_512 64
-
-
-
-READ8_MEMBER(orion_state::orion_romdisk_porta_r)
-{
- UINT16 addr = (m_romdisk_msb << 8) | m_romdisk_lsb;
- if (m_cart->exists() && addr < m_cart->get_rom_size())
- return m_cart->read_rom(space, addr);
- else
- return 0xff;
-}
-
-WRITE8_MEMBER(orion_state::orion_romdisk_portb_w)
-{
- m_romdisk_lsb = data;
-}
-
-WRITE8_MEMBER(orion_state::orion_romdisk_portc_w)
-{
- m_romdisk_msb = data;
-}
-
-MACHINE_START_MEMBER(orion_state,orion128)
-{
- m_video_mode_mask = 7;
-}
-
-READ8_MEMBER(orion_state::orion128_system_r)
-{
- return m_ppi8255_2->read(space, offset & 3);
-}
-
-WRITE8_MEMBER(orion_state::orion128_system_w)
-{
- m_ppi8255_2->write(space, offset & 3, data);
-}
-
-READ8_MEMBER(orion_state::orion128_romdisk_r)
-{
- return m_ppi8255_1->read(space, offset & 3);
-}
-
-WRITE8_MEMBER(orion_state::orion128_romdisk_w)
-{
- m_ppi8255_1->write(space, offset & 3, data);
-}
-
-void orion_state::orion_set_video_mode(int width)
-{
- rectangle visarea(0, width-1, 0, 255);
- machine().first_screen()->configure(width, 256, visarea, machine().first_screen()->frame_period().attoseconds());
-}
-
-WRITE8_MEMBER(orion_state::orion128_video_mode_w)
-{
- if ((data & 0x80)!=(m_orion128_video_mode & 0x80))
- {
- if ((data & 0x80)==0x80)
- {
- if (m_video_mode_mask == 31)
- {
- m_orion128_video_width = SCREEN_WIDTH_512;
- orion_set_video_mode(512);
- }
- else
- {
- m_orion128_video_width = SCREEN_WIDTH_480;
- orion_set_video_mode(480);
- }
- }
- else
- {
- m_orion128_video_width = SCREEN_WIDTH_384;
- orion_set_video_mode(384);
- }
- }
-
- m_orion128_video_mode = data;
-}
-
-WRITE8_MEMBER(orion_state::orion128_video_page_w)
-{
- if (m_orion128_video_page != data)
- {
- if ((data & 0x80)!=(m_orion128_video_page & 0x80))
- {
- if ((data & 0x80)==0x80)
- {
- if (m_video_mode_mask == 31)
- {
- m_orion128_video_width = SCREEN_WIDTH_512;
- orion_set_video_mode(512);
- }
- else
- {
- m_orion128_video_width = SCREEN_WIDTH_480;
- orion_set_video_mode(480);
- }
- }
- else
- {
- m_orion128_video_width = SCREEN_WIDTH_384;
- orion_set_video_mode(384);
- }
- }
- }
- m_orion128_video_page = data;
-}
-
-
-WRITE8_MEMBER(orion_state::orion128_memory_page_w)
-{
- if (data!=m_orion128_memory_page )
- {
- m_bank1->set_base(m_ram->pointer() + (data & 3) * 0x10000);
- m_orion128_memory_page = (data & 3);
- }
-}
-
-MACHINE_RESET_MEMBER(orion_state,orion128)
-{
- m_orion128_video_page = 0;
- m_orion128_video_mode = 0;
- m_orion128_memory_page = -1;
- m_bank1->set_base(m_region_maincpu->base() + 0xf800);
- m_bank2->set_base(m_ram->pointer() + 0xf000);
- m_orion128_video_width = SCREEN_WIDTH_384;
- orion_set_video_mode(384);
- radio86_init_keyboard();
-}
-
-WRITE8_MEMBER(orion_state::orion_disk_control_w)
-{
- floppy_connector *names[] = { m_fd0, m_fd1, m_fd2, m_fd3};
- floppy_image_device *floppy = names[data & 3]->get_device();
-
- m_fdc->set_floppy(floppy);
- floppy->mon_w(0);
- floppy->ss_w(((data & 0x10) >> 4) ^ 1);
-}
-
-READ8_MEMBER(orion_state::orion128_floppy_r)
-{
- switch(offset)
- {
- case 0x0 :
- case 0x10 : return m_fdc->status_r(space, 0);
- case 0x1 :
- case 0x11 : return m_fdc->track_r(space, 0);
- case 0x2 :
- case 0x12 : return m_fdc->sector_r(space, 0);
- case 0x3 :
- case 0x13 : return m_fdc->data_r(space, 0);
- }
- return 0xff;
-}
-
-WRITE8_MEMBER(orion_state::orion128_floppy_w)
-{
- switch(offset)
- {
- case 0x0 :
- case 0x10 : m_fdc->cmd_w(space, 0,data); break;
- case 0x1 :
- case 0x11 : m_fdc->track_w(space, 0,data);break;
- case 0x2 :
- case 0x12 : m_fdc->sector_w(space, 0,data);break;
- case 0x3 :
- case 0x13 : m_fdc->data_w(space, 0,data);break;
- case 0x4 :
- case 0x14 :
- case 0x20 : orion_disk_control_w(space, offset, data);break;
- }
-}
-READ8_MEMBER(orion_state::orionz80_floppy_rtc_r)
-{
- if ((offset >= 0x60) && (offset <= 0x6f))
- {
- return m_rtc->read(space,offset-0x60);
- }
- else
- {
- return orion128_floppy_r(space,offset);
- }
-}
-
-WRITE8_MEMBER(orion_state::orionz80_floppy_rtc_w)
-{
- if ((offset >= 0x60) && (offset <= 0x6f))
- {
- m_rtc->write(space,offset-0x60,data);
- }
- else
- {
- orion128_floppy_w(space,offset,data);
- }
-}
-
-
-MACHINE_START_MEMBER(orion_state,orionz80)
-{
- m_video_mode_mask = 7;
-}
-
-WRITE8_MEMBER(orion_state::orionz80_sound_w)
-{
- if (m_speaker_data == 0)
- {
- m_speaker_data = data;
- }
- else
- {
- m_speaker_data = 0;
- }
- m_speaker->level_w(m_speaker_data);
-
-}
-
-WRITE8_MEMBER(orion_state::orionz80_sound_fe_w)
-{
- m_speaker->level_w(BIT(data, 4));
-}
-
-
-void orion_state::orionz80_switch_bank()
-{
- UINT8 bank_select;
- UINT8 segment_select;
- address_space &space = m_maincpu->space(AS_PROGRAM);
-
- bank_select = (m_orionz80_dispatcher & 0x0c) >> 2;
- segment_select = m_orionz80_dispatcher & 0x03;
-
- space.install_write_bank(0x0000, 0x3fff, "bank1");
- if ((m_orionz80_dispatcher & 0x80)==0)
- { // dispatcher on
- m_bank1->set_base(m_ram->pointer() + 0x10000 * bank_select + segment_select * 0x4000 );
- }
- else
- { // dispatcher off
- m_bank1->set_base(m_ram->pointer() + 0x10000 * m_orionz80_memory_page);
- }
-
- m_bank2->set_base(m_ram->pointer() + 0x4000 + 0x10000 * m_orionz80_memory_page);
-
- if ((m_orionz80_dispatcher & 0x20) == 0)
- {
- space.install_write_handler(0xf400, 0xf4ff, write8_delegate(FUNC(orion_state::orion128_system_w),this));
- space.install_write_handler(0xf500, 0xf5ff, write8_delegate(FUNC(orion_state::orion128_romdisk_w),this));
- space.install_write_handler(0xf700, 0xf7ff, write8_delegate(FUNC(orion_state::orionz80_floppy_rtc_w),this));
- space.install_read_handler(0xf400, 0xf4ff, read8_delegate(FUNC(orion_state::orion128_system_r),this));
- space.install_read_handler(0xf500, 0xf5ff, read8_delegate(FUNC(orion_state::orion128_romdisk_r),this));
- space.install_read_handler(0xf700, 0xf7ff, read8_delegate(FUNC(orion_state::orionz80_floppy_rtc_r),this));
-
- space.install_write_handler(0xf800, 0xf8ff, write8_delegate(FUNC(orion_state::orion128_video_mode_w),this));
- space.install_write_handler(0xf900, 0xf9ff, write8_delegate(FUNC(orion_state::orionz80_memory_page_w),this));
- space.install_write_handler(0xfa00, 0xfaff, write8_delegate(FUNC(orion_state::orion128_video_page_w),this));
- space.install_write_handler(0xfb00, 0xfbff, write8_delegate(FUNC(orion_state::orionz80_dispatcher_w),this));
- space.unmap_write(0xfc00, 0xfeff);
- space.install_write_handler(0xff00, 0xffff, write8_delegate(FUNC(orion_state::orionz80_sound_w),this));
-
- m_bank3->set_base(m_ram->pointer() + 0xf000);
- m_bank5->set_base(m_region_maincpu->base() + 0xf800);
-
- }
- else
- {
- /* if it is full memory access */
- m_bank3->set_base(m_ram->pointer() + 0xf000 + 0x10000 * m_orionz80_memory_page);
- m_bank4->set_base(m_ram->pointer() + 0xf400 + 0x10000 * m_orionz80_memory_page);
- m_bank5->set_base(m_ram->pointer() + 0xf800 + 0x10000 * m_orionz80_memory_page);
- }
-}
-
-WRITE8_MEMBER(orion_state::orionz80_memory_page_w)
-{
- m_orionz80_memory_page = data & 7;
- orionz80_switch_bank();
-}
-
-WRITE8_MEMBER(orion_state::orionz80_dispatcher_w)
-{
- m_orionz80_dispatcher = data;
- orionz80_switch_bank();
-}
-
-MACHINE_RESET_MEMBER(orion_state,orionz80)
-{
- address_space &space = m_maincpu->space(AS_PROGRAM);
-
- space.unmap_write(0x0000, 0x3fff);
- space.install_write_bank(0x4000, 0xefff, "bank2");
- space.install_write_bank(0xf000, 0xf3ff, "bank3");
-
- space.install_write_handler(0xf400, 0xf4ff, write8_delegate(FUNC(orion_state::orion128_system_w),this));
- space.install_write_handler(0xf500, 0xf5ff, write8_delegate(FUNC(orion_state::orion128_romdisk_w),this));
- space.install_write_handler(0xf700, 0xf7ff, write8_delegate(FUNC(orion_state::orionz80_floppy_rtc_w),this));
- space.install_read_handler(0xf400, 0xf4ff, read8_delegate(FUNC(orion_state::orion128_system_r),this));
- space.install_read_handler(0xf500, 0xf5ff, read8_delegate(FUNC(orion_state::orion128_romdisk_r),this));
- space.install_read_handler(0xf700, 0xf7ff, read8_delegate(FUNC(orion_state::orionz80_floppy_rtc_r),this));
-
- space.install_write_handler(0xf800, 0xf8ff, write8_delegate(FUNC(orion_state::orion128_video_mode_w),this));
- space.install_write_handler(0xf900, 0xf9ff, write8_delegate(FUNC(orion_state::orionz80_memory_page_w),this));
- space.install_write_handler(0xfa00, 0xfaff, write8_delegate(FUNC(orion_state::orion128_video_page_w),this));
- space.install_write_handler(0xfb00, 0xfbff, write8_delegate(FUNC(orion_state::orionz80_dispatcher_w),this));
- space.unmap_write(0xfc00, 0xfeff);
- space.install_write_handler(0xff00, 0xffff, write8_delegate(FUNC(orion_state::orionz80_sound_w),this));
-
-
- m_bank1->set_base(m_region_maincpu->base() + 0xf800);
- m_bank2->set_base(m_ram->pointer() + 0x4000);
- m_bank3->set_base(m_ram->pointer() + 0xf000);
- m_bank5->set_base(m_region_maincpu->base() + 0xf800);
-
-
- m_orion128_video_page = 0;
- m_orion128_video_mode = 0;
- m_orionz80_memory_page = 0;
- m_orionz80_dispatcher = 0;
- m_speaker_data = 0;
- m_orion128_video_width = SCREEN_WIDTH_384;
- orion_set_video_mode(384);
- radio86_init_keyboard();
-}
-
-INTERRUPT_GEN_MEMBER(orion_state::orionz80_interrupt)
-{
- if ((m_orionz80_dispatcher & 0x40)==0x40)
- {
- device.execute().set_input_line(0, HOLD_LINE);
- }
-}
-
-READ8_MEMBER(orion_state::orionz80_io_r)
-{
- if (offset == 0xFFFD)
- {
- return m_ay8912->data_r(space, 0);
- }
- return 0xff;
-}
-
-WRITE8_MEMBER(orion_state::orionz80_io_w)
-{
- switch (offset & 0xff)
- {
- case 0xf8 : orion128_video_mode_w(space,0,data);break;
- case 0xf9 : orionz80_memory_page_w(space,0,data);break;
- case 0xfa : orion128_video_page_w(space,0,data);break;
- case 0xfb : orionz80_dispatcher_w(space,0,data);break;
- case 0xfe : orionz80_sound_fe_w(space,0,data);break;
- case 0xff : orionz80_sound_w(space,0,data);break;
- }
- switch(offset)
- {
- case 0xfffd : m_ay8912->address_w(space, 0, data);
- break;
- case 0xbffd :
- case 0xbefd : m_ay8912->data_w(space, 0, data);
- break;
- }
-}
-
-
-
-
-
-
-
-void orion_state::orionpro_bank_switch()
-{
- address_space &space = m_maincpu->space(AS_PROGRAM);
- int page = m_orionpro_page & 7; // we have only 8 pages
- int is128 = (m_orionpro_dispatcher & 0x80) ? 1 : 0;
- UINT8 *ram = m_ram->pointer();
-
- if (is128==1)
- {
- page = m_orionpro_128_page & 7;
- }
- space.install_write_bank(0x0000, 0x1fff, "bank1");
- space.install_write_bank(0x2000, 0x3fff, "bank2");
- space.install_write_bank(0x4000, 0x7fff, "bank3");
- space.install_write_bank(0x8000, 0xbfff, "bank4");
- space.install_write_bank(0xc000, 0xefff, "bank5");
- space.install_write_bank(0xf000, 0xf3ff, "bank6");
- space.install_write_bank(0xf400, 0xf7ff, "bank7");
- space.install_write_bank(0xf800, 0xffff, "bank8");
-
-
- if ((m_orionpro_dispatcher & 0x01)==0x00)
- { // RAM0 segment disabled
- m_bank1->set_base(ram + 0x10000 * page);
- m_bank2->set_base(ram + 0x10000 * page + 0x2000);
- }
- else
- {
- m_bank1->set_base(ram + (m_orionpro_ram0_segment & 31) * 0x4000);
- m_bank2->set_base(ram + (m_orionpro_ram0_segment & 31) * 0x4000 + 0x2000);
- }
- if ((m_orionpro_dispatcher & 0x10)==0x10)
- { // ROM1 enabled
- space.unmap_write(0x0000, 0x1fff);
- m_bank1->set_base(m_region_maincpu->base() + 0x20000);
- }
- if ((m_orionpro_dispatcher & 0x08)==0x08)
- { // ROM2 enabled
- space.unmap_write(0x2000, 0x3fff);
- m_bank2->set_base(m_region_maincpu->base() + 0x22000 + (m_orionpro_rom2_segment & 7) * 0x2000);
- }
-
- if ((m_orionpro_dispatcher & 0x02)==0x00)
- { // RAM1 segment disabled
- m_bank3->set_base(ram + 0x10000 * page + 0x4000);
- }
- else
- {
- m_bank3->set_base(ram + (m_orionpro_ram1_segment & 31) * 0x4000);
- }
-
- if ((m_orionpro_dispatcher & 0x04)==0x00)
- { // RAM2 segment disabled
- m_bank4->set_base(ram + 0x10000 * page + 0x8000);
- }
- else
- {
- m_bank4->set_base(ram + (m_orionpro_ram2_segment & 31) * 0x4000);
- }
-
- m_bank5->set_base(ram + 0x10000 * page + 0xc000);
-
- if (is128)
- {
- m_bank6->set_base(ram + 0x10000 * 0 + 0xf000);
-
- space.install_write_handler(0xf400, 0xf4ff, write8_delegate(FUNC(orion_state::orion128_system_w),this));
- space.install_write_handler(0xf500, 0xf5ff, write8_delegate(FUNC(orion_state::orion128_romdisk_w),this));
- space.unmap_write(0xf600, 0xf6ff);
- space.install_write_handler(0xf700, 0xf7ff, write8_delegate(FUNC(orion_state::orion128_floppy_w),this));
- space.install_read_handler(0xf400, 0xf4ff, read8_delegate(FUNC(orion_state::orion128_system_r),this));
- space.install_read_handler(0xf500, 0xf5ff, read8_delegate(FUNC(orion_state::orion128_romdisk_r),this));
- space.unmap_read(0xf600, 0xf6ff);
- space.install_read_handler(0xf700, 0xf7ff, read8_delegate(FUNC(orion_state::orion128_floppy_r),this));
-
- space.install_write_handler(0xf800, 0xf8ff, write8_delegate(FUNC(orion_state::orion128_video_mode_w),this));
- space.install_write_handler(0xf900, 0xf9ff, write8_delegate(FUNC(orion_state::orionpro_memory_page_w),this));
- space.install_write_handler(0xfa00, 0xfaff, write8_delegate(FUNC(orion_state::orion128_video_page_w),this));
- space.unmap_write(0xfb00, 0xfeff);
- space.install_write_handler(0xff00, 0xffff, write8_delegate(FUNC(orion_state::orionz80_sound_w),this));
-
-
- m_bank8->set_base(ram + 0x10000 * 0 + 0xf800);
- }
- else
- {
- if ((m_orionpro_dispatcher & 0x40)==0x40)
- { // FIX F000 enabled
- m_bank6->set_base(ram + 0x10000 * 0 + 0xf000);
- m_bank7->set_base(ram + 0x10000 * 0 + 0xf400);
- m_bank8->set_base(ram + 0x10000 * 0 + 0xf800);
- }
- else
- {
- m_bank6->set_base(ram + 0x10000 * page + 0xf000);
- m_bank7->set_base(ram + 0x10000 * page + 0xf400);
- m_bank8->set_base(ram + 0x10000 * page + 0xf800);
- }
- }
-}
-
-WRITE8_MEMBER(orion_state::orionpro_memory_page_w)
-{
- m_orionpro_128_page = data;
- orionpro_bank_switch();
-}
-
-MACHINE_RESET_MEMBER(orion_state,orionpro)
-{
- radio86_init_keyboard();
-
- m_orion128_video_page = 0;
- m_orion128_video_mode = 0;
- m_orionpro_ram0_segment = 0;
- m_orionpro_ram1_segment = 0;
- m_orionpro_ram2_segment = 0;
-
- m_orionpro_page = 0;
- m_orionpro_128_page = 0;
- m_orionpro_rom2_segment = 0;
-
- m_orionpro_dispatcher = 0x50;
- orionpro_bank_switch();
-
- m_speaker_data = 0;
- m_orion128_video_width = SCREEN_WIDTH_384;
- orion_set_video_mode(384);
-
- m_video_mode_mask = 31;
- m_orionpro_pseudo_color = 0;
-}
-
-READ8_MEMBER(orion_state::orionpro_io_r)
-{
- switch (offset & 0xff)
- {
- case 0x00 : return 0x56;
- case 0x04 : return m_orionpro_ram0_segment;
- case 0x05 : return m_orionpro_ram1_segment;
- case 0x06 : return m_orionpro_ram2_segment;
- case 0x08 : return m_orionpro_page;
- case 0x09 : return m_orionpro_rom2_segment;
- case 0x0a : return m_orionpro_dispatcher;
- case 0x10 : return m_fdc->status_r(space, 0);
- case 0x11 : return m_fdc->track_r(space, 0);
- case 0x12 : return m_fdc->sector_r(space, 0);
- case 0x13 : return m_fdc->data_r(space, 0);
- case 0x18 :
- case 0x19 :
- case 0x1a :
- case 0x1b :
- return orion128_system_r(space,(offset & 0xff)-0x18);
- case 0x28 : return orion128_romdisk_r(space,0);
- case 0x29 : return orion128_romdisk_r(space,1);
- case 0x2a : return orion128_romdisk_r(space,2);
- case 0x2b : return orion128_romdisk_r(space,3);
- }
- if (offset == 0xFFFD)
- {
- return m_ay8912->data_r(space, 0);
- }
- return 0xff;
-}
-
-WRITE8_MEMBER(orion_state::orionpro_io_w)
-{
- switch (offset & 0xff)
- {
- case 0x04 : m_orionpro_ram0_segment = data; orionpro_bank_switch(); break;
- case 0x05 : m_orionpro_ram1_segment = data; orionpro_bank_switch(); break;
- case 0x06 : m_orionpro_ram2_segment = data; orionpro_bank_switch(); break;
- case 0x08 : m_orionpro_page = data; orionpro_bank_switch(); break;
- case 0x09 : m_orionpro_rom2_segment = data; orionpro_bank_switch(); break;
- case 0x0a : m_orionpro_dispatcher = data; orionpro_bank_switch(); break;
- case 0x10 : m_fdc->cmd_w(space, 0,data); break;
- case 0x11 : m_fdc->track_w(space, 0,data);break;
- case 0x12 : m_fdc->sector_w(space, 0,data);break;
- case 0x13 : m_fdc->data_w(space, 0,data);break;
- case 0x14 : orion_disk_control_w(space, 9, data);break;
- case 0x18 :
- case 0x19 :
- case 0x1a :
- case 0x1b :
- orion128_system_w(space,(offset & 0xff)-0x18,data); break;
- case 0x28 : orion128_romdisk_w(space,0,data); break;
- case 0x29 : orion128_romdisk_w(space,1,data); break;
- case 0x2a : orion128_romdisk_w(space,2,data); break;
- case 0x2b : orion128_romdisk_w(space,3,data); break;
- case 0xf8 : orion128_video_mode_w(space,0,data);break;
- case 0xf9 : m_orionpro_128_page = data; orionpro_bank_switch(); break;
- case 0xfa : orion128_video_page_w(space,0,data);break;
- case 0xfc : m_orionpro_pseudo_color = data;break;
- case 0xfe : orionz80_sound_fe_w(space,0,data);break;
- case 0xff : orionz80_sound_w(space,0,data);break;
- }
- switch(offset)
- {
- case 0xfffd : m_ay8912->address_w(space, 0, data);
- break;
- case 0xbffd :
- case 0xbefd : m_ay8912->data_w(space, 0, data);
- break;
- }
-}