mirror of
https://github.com/holub/mame
synced 2025-04-23 00:39:36 +03:00
mda: Added Ericsson Monochrome HR Graphics Board 1070 (might be splitted out later) and introduced logmacro.h
This commit is contained in:
Joakim Larsson Edstrom
parent
5f8e64d325
commit
a4b3c33dc3
@ -126,6 +126,7 @@ void pc_isa8_cards(device_slot_interface &device)
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device.option_add("chessmdr", ISA8_CHESSMDR);
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device.option_add("chessmsr", ISA8_CHESSMSR);
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device.option_add("finalchs", ISA8_FINALCHS);
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device.option_add("epc_mda", ISA8_EPC_MDA);
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}
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void pc_isa16_cards(device_slot_interface &device)
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@ -166,6 +167,7 @@ void pc_isa16_cards(device_slot_interface &device)
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device.option_add("chessmdr", ISA8_CHESSMDR);
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device.option_add("chessmsr", ISA8_CHESSMSR);
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device.option_add("finalchs", ISA8_FINALCHS);
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device.option_add("epc_mda", ISA8_EPC_MDA);
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// 16-bit
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device.option_add("ide", ISA16_IDE);
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device.option_add("ne2000", NE2000);
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@ -12,6 +12,31 @@
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#include "screen.h"
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#define LOG_READ (1U << 1)
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#define LOG_SETUP (1U << 2)
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#define LOG_ROW (1U << 3)
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#define LOG_MODE (1U << 4)
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#define LOG_CHRG (1U << 5)
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#define LOG_STAT (1U << 6)
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//#define VERBOSE (LOG_MODE|LOG_SETUP|LOG_ROW)
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//#define LOG_OUTPUT_STREAM std::cout
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#include "logmacro.h"
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#define LOGR(...) LOGMASKED(LOG_READ, __VA_ARGS__)
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#define LOGSETUP(...) LOGMASKED(LOG_SETUP, __VA_ARGS__)
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#define LOGROW(...) LOGMASKED(LOG_ROW, __VA_ARGS__)
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#define LOGMODE(...) LOGMASKED(LOG_MODE, __VA_ARGS__)
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#define LOGCHRG(...) LOGMASKED(LOG_CHRG, __VA_ARGS__)
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#define LOGSTAT(...) LOGMASKED(LOG_STAT, __VA_ARGS__)
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#ifdef _MSC_VER
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#define FUNCNAME __func__
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#else
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#define FUNCNAME __PRETTY_FUNCTION__
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#endif
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#define MDA_SCREEN_NAME "mda_screen"
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#define MC6845_NAME "mc6845"
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@ -19,20 +44,7 @@
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Hercules video card
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*/
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#define HERCULES_SCREEN_NAME "hercules_screen"
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#define VERBOSE_MDA 0 /* MDA (Monochrome Display Adapter) */
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#define MDA_CLOCK 16.257_MHz_XTAL
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#define MDA_LOG(N,M,A) \
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do { \
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if(VERBOSE_MDA>=N) \
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{ \
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if( M ) \
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logerror("%11.6f: %-24s",machine().time().as_double(),(char*)M ); \
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logerror A; \
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} \
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} while (0)
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#define MDA_CLOCK XTAL(16'257'000)
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static const unsigned char mda_palette[4][3] =
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{
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@ -211,7 +223,6 @@ void isa8_mda_device::device_reset()
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The character cell size is 9x15. Column 9 is column 8 repeated for
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character codes 176 to 223.
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***************************************************************************/
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MC6845_UPDATE_ROW( isa8_mda_device::mda_text_inten_update_row )
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{
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const rgb_t *palette = m_palette->palette()->entry_list_raw();
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@ -219,7 +230,7 @@ MC6845_UPDATE_ROW( isa8_mda_device::mda_text_inten_update_row )
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uint16_t chr_base = ( ra & 0x08 ) ? 0x800 | ( ra & 0x07 ) : ra;
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int i;
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if ( y == 0 ) MDA_LOG(1,"mda_text_inten_update_row",("\n"));
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if ( y == 0 ) LOGROW("%11.6f: %-24s\n", machine().time().as_double(), FUNCNAME);
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for ( i = 0; i < x_count; i++ )
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{
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uint16_t offset = ( ( ma + i ) << 1 ) & 0x0FFF;
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@ -292,7 +303,7 @@ MC6845_UPDATE_ROW( isa8_mda_device::mda_text_blink_update_row )
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uint16_t chr_base = ( ra & 0x08 ) ? 0x800 | ( ra & 0x07 ) : ra;
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int i;
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if ( y == 0 ) MDA_LOG(1,"mda_text_blink_update_row",("\n"));
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if ( y == 0 ) LOGROW("%11.6f: %-24s\n", machine().time().as_double(), FUNCNAME);
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for ( i = 0; i < x_count; i++ )
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{
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uint16_t offset = ( ( ma + i ) << 1 ) & 0x0FFF;
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@ -360,7 +371,6 @@ MC6845_UPDATE_ROW( isa8_mda_device::mda_text_blink_update_row )
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}
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}
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MC6845_UPDATE_ROW( isa8_mda_device::crtc_update_row )
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{
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if (m_update_row_type == -1)
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@ -462,17 +472,17 @@ WRITE8_MEMBER( isa8_mda_device::io_write)
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{
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switch( offset )
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{
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case 0: case 2: case 4: case 6:
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case 0x00: case 0x02: case 0x04: case 0x06:
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m_crtc->address_w(data);
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break;
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case 1: case 3: case 5: case 7:
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case 0x01: case 0x03: case 0x05: case 0x07:
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m_crtc->register_w(data);
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break;
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case 8:
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case 0x08:
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mode_control_w(space, offset, data);
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break;
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case 12: case 13: case 14:
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m_lpt->write(space, offset - 12, data);
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case 0x0c: case 0x0d: case 0x0e:
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m_lpt->write(space, offset - 0x0c, data);
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break;
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}
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}
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@ -482,18 +492,18 @@ READ8_MEMBER( isa8_mda_device::io_read)
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int data = 0xff;
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switch( offset )
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{
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case 0: case 2: case 4: case 6:
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case 0x00: case 0x02: case 0x04: case 0x06:
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/* return last written mc6845 address value here? */
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break;
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case 1: case 3: case 5: case 7:
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case 0x01: case 0x03: case 0x05: case 0x07:
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data = m_crtc->register_r();
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break;
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case 10:
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case 0x0a:
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data = status_r(space, offset);
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break;
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/* 12, 13, 14 are the LPT ports */
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case 12: case 13: case 14:
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data = m_lpt->read(space, offset - 12);
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/* LPT ports */
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case 0x0c: case 0x0d: case 0x0e:
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data = m_lpt->read(space, offset - 0x0c);
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break;
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}
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return data;
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@ -624,7 +634,7 @@ MC6845_UPDATE_ROW( isa8_hercules_device::hercules_gfx_update_row )
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uint32_t *p = &bitmap.pix32(y);
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uint16_t gfx_base = ( ( m_mode_control & 0x80 ) ? 0x8000 : 0x0000 ) | ( ( ra & 0x03 ) << 13 );
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int i;
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if ( y == 0 ) MDA_LOG(1,"hercules_gfx_update_row",("\n"));
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if ( y == 0 ) LOGROW("%11.6f: %-24s\n", machine().time().as_double(), FUNCNAME);
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for ( i = 0; i < x_count; i++ )
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{
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uint8_t data = m_videoram[ gfx_base + ( ( ma + i ) << 1 ) ];
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@ -681,19 +691,19 @@ WRITE8_MEMBER( isa8_hercules_device::io_write )
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{
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switch( offset )
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{
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case 0: case 2: case 4: case 6:
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case 0x00: case 0x02: case 0x04: case 0x06:
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m_crtc->address_w(data);
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break;
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case 1: case 3: case 5: case 7:
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case 0x01: case 0x03: case 0x05: case 0x07:
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m_crtc->register_w(data);
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break;
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case 8:
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case 0x08:
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mode_control_w(space, offset, data);
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break;
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case 12: case 13: case 14:
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case 0x0c: case 0x0d: case 0x0e:
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m_lpt->write(space, offset - 12, data);
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break;
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case 15:
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case 0x0f:
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m_configuration_switch = data;
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break;
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}
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@ -725,18 +735,18 @@ READ8_MEMBER( isa8_hercules_device::io_read )
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int data = 0xff;
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switch( offset )
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{
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case 0: case 2: case 4: case 6:
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case 0x00: case 0x02: case 0x04: case 0x06:
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/* return last written mc6845 address value here? */
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break;
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case 1: case 3: case 5: case 7:
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case 0x01: case 0x03: case 0x05: case 0x07:
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data = m_crtc->register_r();
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break;
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case 10:
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case 0x0a:
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data = status_r(space, offset);
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break;
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/* 12, 13, 14 are the LPT ports */
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case 12: case 13: case 14:
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data = m_lpt->read(space, offset - 12);
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/* LPT ports */
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case 0xc: case 0xd: case 0xe:
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data = m_lpt->read(space, offset - 0x0c);
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break;
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}
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return data;
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@ -809,7 +819,7 @@ MC6845_UPDATE_ROW( isa8_ec1840_0002_device::mda_lowres_text_inten_update_row )
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uint16_t chr_base = ra;
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int i;
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if ( y == 0 ) MDA_LOG(1,"mda_lowres_text_inten_update_row",("\n"));
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if ( y == 0 ) LOGROW("%11.6f: %-24s\n", machine().time().as_double(), FUNCNAME);
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for ( i = 0; i < x_count; i++ )
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{
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uint16_t offset = ( ( ma + i ) << 1 ) & 0x0FFF;
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@ -873,7 +883,7 @@ MC6845_UPDATE_ROW( isa8_ec1840_0002_device::mda_lowres_text_blink_update_row )
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uint16_t chr_base = ra;
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int i;
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if ( y == 0 ) MDA_LOG(1,"mda_lowres_text_blink_update_row",("\n"));
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if ( y == 0 ) LOGROW("%11.6f: %-24s\n", machine().time().as_double(), FUNCNAME);
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for ( i = 0; i < x_count; i++ )
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{
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uint16_t offset = ( ( ma + i ) << 1 ) & 0x0FFF;
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@ -965,3 +975,514 @@ MC6845_UPDATE_ROW( isa8_ec1840_0002_device::crtc_update_row )
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break;
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}
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}
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/*****************************************************************************
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Ericsson PC Monochrome HR Graphics Board 1070
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******************************************************************************/
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/* PCB layouts and assembly years from online pictures and physical unit.
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Ericsson - marked SPVT02 8301 60 53-10, assembled in 1985 indicated by chip dates
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+--------------------------------------------------------------------------------------+ ___
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| IC1 IC2 IC3 IC4 IC5 +-IC15--EPROM-+ IC6 IC7 IC8 S1 ||
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| |8363 65 14-80| ||
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| IC9 IC10 IC11 IC12 IC13 IC14|CG 50821 A64 |+------------------++-IC24 EPROM--+ ||
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| +-------------+| CRTC HD46505SP-1 ||10-40VP | ||
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| IC16 IC17 IC18 IC19 IC20 IC21 IC22 | IC23 HD68A45SP ||402 28 A19 | J4|| not
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| +------------------++-------------+ || mounted
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| IC25 IC26 IC27 IC28 IC29 IC30 IC31 IC32 IC33 IC34 ||
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| O-|__
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| IC35 IC36 IC37 IC38 IC39 IC40 IC41 IC42 IC43 IC44 || |
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| ||DB15
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| IC45 IC46 IC47 IC48 IC49 IC50 IC51 IC52 IC53 IC54 || |
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| ||__|
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| IC55 IC56 IC57 IC58 IC59 IC60 IC61 IC62 IC63 IC64 O-|
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| J1A ||
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| IC65 IC66 IC67 IC68 IC69 IC70 IC71 IC72 +--------------------------------------------+|
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+-----------------------------------------+ ||||||||| ||||||||||||||||||||||||| |
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I85565 A85571 (labels) |
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IC's (from photos)
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------------------------------------------------------------------------------
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IC1 74F109 IC26 74F86 IC51 TMS4416-15NL 4 x 16Kbits DRAM
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IC2 74LS393 IC27 74LS08 IC52 74ALS574
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IC3 74F64 IC28 74F153 IC53 74LS138
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IC4 74ALS299 IC29 74LS174 IC54 74F86
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IC5 74LS375 IC30 74LS374 IC55 74F109
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IC6 74LS151 IC31 74LS374 IC56 74F32
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IC7 74LS153 IC32 74ALS574 IC57 74F109
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IC8 74LS389? IC33 74LS08 IC58 74F00?
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IC9 74F02 IC34 74LS245 IC59 74LS244
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IC10 74ALS109 IC35 74F10? IC60 TMS4416-15NL 4 x 16Kbits DRAM
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IC11 Crystal 17.040MHz IC36 74LS02 IC61 TMS4416-15NL 4 x 16Kbits DRAM
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IC12 74F64 IC37 74LS00 IC62 74ALS574
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IC13 74ALS299 IC38 74F374 IC63 74LS138
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IC14 PAL? 10-70ART40101 IC39 74LS125 IC64 74LS245
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IC15 EPROM 8363 65 14-80 CG 50821 A64 IC40 74LS244 IC65 74LS00
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IC16 Crystal 19.170MHz IC41 74LS244 IC66 74LS02
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IC17 74LS10 IC42 74LS574 IC67 74LS51
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IC18 74F08 IC43 74LS32 IC68 74LS04
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IC19 74ALS574 IC44 MC10124 - TTL to MECL converter IC69 74LS153
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IC20 74LS299 IC45 74LS109 IC70 74LS109
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IC21 74LS273 IC46 74LS00 IC71 74LS138
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IC22 74ALS574 IC47 74F194 IC72 74LS139
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IC23 CRTC HD46505SP,HD68A45SP IC48 74F04
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IC24 EPROM 2764, 10-40 VP 402 28 A19 IC49 74LS174
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IC25 74ALS109 IC50 TMS4416-15NL 4 x 16Kbits DRAM
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General description
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-------------------
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The PCB has a 2 bit DIP switch S1 and a DB15 non standard video connector. There is also an unsoldered J4 connector
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above the DB15 but no hole prepared for a connector in the plate. Above the J4 connector there is a two pin PCB connector
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that probably receives the power for the monitor for the DB15 from the PSU.
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Just below IC65 and IC66 there are two labels saying "I 85565" and "A E85571" respectively
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Video cable, card DB15 <---> monitor DB25
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---------------------------------------------------
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Ericsson 2 +VS 4 Ericsson
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Monochrome 3 VS return 2 Monochrome HR
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HR Graphics 10 +VS 17 Monitors 3111 (Amber) or
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Board 1070 11 VS return 15 3712/3715 (Black & White)
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4 VSYNC 6
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12 VSYNC 19
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5 HSYNC 7
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13 HSYNC 20
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6 High intensity 8
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14 High intensity 21
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7 Video 9
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15 Video 22
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8 GND 11
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This board is normaly used with an Ericsson monitor due to the non standard connector.
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Trivia: https://www.pinterest.se/pin/203084264425177097/
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*/
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#define EPC_MDA_SCREEN "epc_mda_screen"
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#if 0
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static GFXDECODE_START( pcepc )
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GFXDECODE_ENTRY( "gfx1", 0x0000, pc_16_charlayout, 1, 1 )
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GFXDECODE_END
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#endif
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ROM_START( epc )
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ROM_REGION(0x2000,"chargen", 0)
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ROM_LOAD("8363_65_14_80_cg_50821_a64.bin", 0x00000, 0x2000, CRC(be709786) SHA1(38ab26224bbe66bbe2bb2ccac29b41cbf78bdbf8))
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//ROM_LOAD("10_40_vp_402_28_ic_24_a19.bin", 0x00000, 0x2000, CRC(2aa53b92) SHA1(87051a037249eb631d7d2191bc0e925125c60f39))
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ROM_END
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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DEFINE_DEVICE_TYPE(ISA8_EPC_MDA, isa8_epc_mda_device, "isa_epc_mda", "Ericsson PC Monochrome HR Graphics Board 1070")
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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/* There are two crystals on the board: 19.170Mhz and 17.040MHz TODO: verify use */
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/* Text modes uses 720x400 base resolution and the Graphics modes 320/640x200/400 */
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/* This matches the difference between the crystals so we assume this for now */
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void isa8_epc_mda_device::device_add_mconfig(machine_config &config)
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{
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screen_device &screen(SCREEN(config, EPC_MDA_SCREEN, SCREEN_TYPE_RASTER));
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screen.set_raw(XTAL(19'170'000) / 4, 720, 0, 720, 400, 0, 400);
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//screen.set_screen_update(MC6845_NAME, FUNC(h46505_device::screen_update));
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screen.set_screen_update(MC6845_NAME, FUNC(mc6845_device::screen_update));
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PALETTE(config, m_palette).set_entries(4);
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HD6845S(config, m_crtc, XTAL(19'170'000) / 16); // clock and divider are guesswork
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m_crtc->set_screen(EPC_MDA_SCREEN);
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m_crtc->set_show_border_area(false);
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m_crtc->set_char_width(8);
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m_crtc->set_update_row_callback(FUNC(isa8_epc_mda_device::crtc_update_row), this);
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m_crtc->out_hsync_callback().set(FUNC(isa8_epc_mda_device::hsync_changed));
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m_crtc->out_vsync_callback().set(FUNC(isa8_epc_mda_device::vsync_changed));
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//MCFG_GFXDECODE_ADD("gfxdecode", "palette", pcepc)
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}
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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const tiny_rom_entry *isa8_epc_mda_device::device_rom_region() const
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{
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return ROM_NAME( epc );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// isa8_epc_mda_device - constructor
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//-------------------------------------------------
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isa8_epc_mda_device::isa8_epc_mda_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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isa8_mda_device(mconfig, ISA8_EPC_MDA, tag, owner, clock)
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, m_soft_chr_gen(nullptr)
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, m_s1(*this, "S1")
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, m_color_mode(0)
|
||||
, m_mode_control2(0)
|
||||
, m_screen(*this, EPC_MDA_SCREEN)
|
||||
, m_io_monitor(*this, "MONITOR")
|
||||
, m_chargen(*this, "chargen")
|
||||
, m_installed(false)
|
||||
{
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_start - device-specific startup
|
||||
//-------------------------------------------------
|
||||
|
||||
void isa8_epc_mda_device::device_start()
|
||||
{
|
||||
if (m_palette != nullptr && !m_palette->started())
|
||||
throw device_missing_dependencies();
|
||||
|
||||
/* Palette for use with the Ericsson Amber Monochrome HR CRT monitor 3111, P3 phospor 602nm 255,183, 0 */
|
||||
m_3111_pal[0] = rgb_t( 0, 0, 0); // black
|
||||
m_3111_pal[1] = rgb_t( 143, 103, 0); // dim
|
||||
m_3111_pal[2] = rgb_t( 191, 137, 0); // normal
|
||||
m_3111_pal[3] = rgb_t( 255, 183, 0); // bright
|
||||
|
||||
/* Palette for use with the Ericsson B&W Monochrome HR CRT monitor 3712/3715 */
|
||||
m_371x_pal[0] = rgb_t( 0, 0, 0); // black
|
||||
m_371x_pal[1] = rgb_t( 143, 143, 143); // dim
|
||||
m_371x_pal[2] = rgb_t( 191, 191, 191); // normal
|
||||
m_371x_pal[3] = rgb_t( 255, 255, 255); // bright
|
||||
|
||||
/* Init a default palette */
|
||||
m_pal = &m_3111_pal; // In case screen starts rendering before device_reset where we read the settings
|
||||
|
||||
m_videoram.resize(0x8000);
|
||||
set_isa_device();
|
||||
m_installed = false;
|
||||
}
|
||||
|
||||
void isa8_epc_mda_device::device_reset()
|
||||
{
|
||||
m_framecnt = 0;
|
||||
m_mode_control = 0;
|
||||
m_vsync = 0;
|
||||
m_hsync = 0;
|
||||
|
||||
m_color_mode = m_s1->read();
|
||||
LOGSETUP("%s: m_color_mode:%02x\n", FUNCNAME, m_color_mode);
|
||||
m_pal = (m_io_monitor-> read() & 1) == 1 ? &m_371x_pal : &m_3111_pal;
|
||||
m_vmode = 0;
|
||||
|
||||
if (m_installed == false)
|
||||
{
|
||||
m_isa->install_device(0x3b0, 0x3bf, read8_delegate( FUNC(isa8_epc_mda_device::io_read), this ), write8_delegate( FUNC(isa8_epc_mda_device::io_write), this ) );
|
||||
m_isa->install_bank(0xb0000, 0xb7fff, "bank_epc", &m_videoram[0]); // Monochrome emulation mode VRAM address
|
||||
|
||||
// This check allows a color monitor adapter to be installed at this address range if color emulation is disabled
|
||||
if (m_color_mode & 1)
|
||||
{
|
||||
m_isa->install_device(0x3d0, 0x3df, read8_delegate( FUNC(isa8_epc_mda_device::io_read), this ), write8_delegate( FUNC(isa8_epc_mda_device::io_write), this ) );
|
||||
m_isa->install_bank(0xb8000, 0xbffff, "bank_epc", &m_videoram[0]); // Color emulation mode VRAM address, but same 32KB areas as there are only this amount on the board
|
||||
}
|
||||
m_installed = true;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Register Address table from the manual
|
||||
* Ericsson name MDA mode CGA mode Standard name
|
||||
*-------------------------------------------------------------------------------
|
||||
* 6845 Address Registers 0x3b4 0x3d4 wo CRT Index reg
|
||||
* 6845 Data Registers 0x3b5 0x3d5 wo CRT Data reg
|
||||
* Mode Register 1 0x3b8 0x3d8 rw MDA/CGA mode reg (bit 0,1 & 4 incompatible)
|
||||
* Mode Register 2 0x3bf 0x3df rw CRT/CPU page reg (incompatible w PCjr only)
|
||||
* Status Register 0x3ba 0x3da r CGA/MDA status reg (incompatible)
|
||||
* w EGA/VGA feature ccontrol reg (not used by this board)
|
||||
*/
|
||||
WRITE8_MEMBER( isa8_epc_mda_device::io_write)
|
||||
{
|
||||
LOG("%s: %04x <- %02x\n", FUNCNAME, offset, data);
|
||||
hd6845s_device *hd6845s = subdevice<hd6845s_device>(MC6845_NAME);
|
||||
switch( offset )
|
||||
{
|
||||
case 0x04:
|
||||
//LOGSETUP(" - HD6845S address write\n");
|
||||
hd6845s->address_w( data );
|
||||
break;
|
||||
case 0x05:
|
||||
//LOGSETUP(" - HD6845S register write\n");
|
||||
hd6845s->register_w( data );
|
||||
break;
|
||||
case 0x08: // Mode 1 reg
|
||||
LOGMODE(" - Mode register 1 write: %02x\n", data);
|
||||
LOGMODE(" MSB attribute: %s\n", (data & 0x20) == 0 ? "intensity" : "blink");
|
||||
LOGMODE(" Horizontal px: %s\n", (data & 0x10) == 0 ? "320/LR" : "640/HR");
|
||||
LOGMODE(" Video : %s\n", (data & 0x08) == 0 ? "Disabled" : "Enabled");
|
||||
LOGMODE(" Mode : %s\n", (data & 0x02) == 0 ? "Text" : "Graphics");
|
||||
LOGMODE(" Text columns : %d\n", (data & 0x01) == 0 ? 40 : 80);
|
||||
m_mode_control = data;
|
||||
m_vmode &= ~(VM_GRAPH | VM_COLS80 | VM_HOR640);
|
||||
m_vmode |= ((m_mode_control & 0x01) ? VM_COLS80 : 0);
|
||||
m_vmode |= ((m_mode_control & 0x02) ? VM_GRAPH : 0);
|
||||
m_vmode |= ((m_mode_control & 0x10) ? VM_HOR640 : 0);
|
||||
m_update_row_type = ((data & 0x20) == 0 ? MDA_LOWRES_TEXT_INTEN : MDA_LOWRES_TEXT_BLINK);
|
||||
{
|
||||
rectangle rect(0, get_xres() - 1, 0, get_yres() -1);
|
||||
m_screen->configure(get_xres(), get_yres(), rect, HZ_TO_ATTOSECONDS(50));
|
||||
}
|
||||
LOGMODE("Video Mode:%02x\n\n", m_vmode);
|
||||
break;
|
||||
case 0x0f: // Mode 2 reg
|
||||
LOGMODE(" - Mode register 2 write: %02x\n", data);
|
||||
LOGMODE(" Vertical px : %s\n", (data & MR2_VER400) == 0 ? "200" : "400");
|
||||
LOGMODE(" Character set: %s\n", (data & MR2_CHRSET) == 0 ? "0" : "1");
|
||||
LOGMODE(" Emulated : %s\n", (data & MR2_COLEMU) == 0 ? "Color" : "Monochrome");
|
||||
m_mode_control2 = data;
|
||||
m_vmode &= ~(VM_MONO | VM_VER400);
|
||||
m_vmode |= ((m_mode_control2 & 0x04) ? VM_MONO : 0);
|
||||
m_vmode |= ((m_mode_control2 & 0x80) ? VM_VER400 : 0);
|
||||
{
|
||||
rectangle rect(0, get_xres() - 1, 0, get_yres() -1);
|
||||
m_screen->configure(get_xres(), get_yres(), rect, HZ_TO_ATTOSECONDS(50));
|
||||
}
|
||||
LOGMODE("Video Mode:%02x\n\n", m_vmode);
|
||||
break;
|
||||
default:
|
||||
LOG("EPC MDA: io_write at wrong offset:%02x\n", offset);
|
||||
logerror("EPC MDA: io_write at wrong offset:%02x\n", offset);
|
||||
}
|
||||
}
|
||||
|
||||
READ8_MEMBER( isa8_epc_mda_device::io_read)
|
||||
{
|
||||
LOG("%s: %04x <- ???\n", FUNCNAME, offset);
|
||||
int data = 0xff;
|
||||
hd6845s_device *hd6845s = subdevice<hd6845s_device>(MC6845_NAME);
|
||||
switch( offset )
|
||||
{
|
||||
case 0x04:
|
||||
LOGR(" - hd6845s address read\n");
|
||||
break;
|
||||
case 0x05:
|
||||
LOGR(" - hd6845s register read\n");
|
||||
data = hd6845s->register_r();
|
||||
break;
|
||||
case 0x08: // Mode 1 reg
|
||||
data = m_mode_control;
|
||||
LOGMODE(" - Mode register 1 read: %02x\n", data);
|
||||
break;
|
||||
case 0x0a: // Status reg: b7-6=00 board ID; b3 vert retrace; b0 horiz retrace; b5,4,2,1 unused
|
||||
data = (m_vsync != 0 ? 0x08 : 0x00) | (m_hsync != 0 ? 0x01 : 0x00);
|
||||
LOGSTAT(" - Status register read: %02x\n", data);
|
||||
break;
|
||||
case 0x0f: // Mode 2 reg
|
||||
data = m_mode_control2;
|
||||
LOGMODE(" - Mode register 2 read: %02x\n", data);
|
||||
break;
|
||||
default:
|
||||
LOG("EPC MDA: io_read at wrong offset:%02x\n", offset);
|
||||
logerror("EPC MDA: io_read at wrong offset:%02x\n", offset);
|
||||
}
|
||||
LOG(" !!!: %04x <- %02x\n", offset, data);
|
||||
return data;
|
||||
}
|
||||
|
||||
inline int isa8_epc_mda_device::get_xres()
|
||||
{
|
||||
return (m_vmode & VM_GRAPH) ? ( (m_vmode & VM_HOR640) ? 640 : 320 ) : 720;
|
||||
}
|
||||
|
||||
inline int isa8_epc_mda_device::get_yres()
|
||||
{
|
||||
return (m_vmode & VM_GRAPH) ? ( (m_vmode & VM_VER400) ? 400 : 200 ) : 400;
|
||||
}
|
||||
|
||||
MC6845_UPDATE_ROW( isa8_epc_mda_device::crtc_update_row )
|
||||
{
|
||||
uint32_t *p = &bitmap.pix32(y);
|
||||
uint16_t chr_base = ra;
|
||||
int i;
|
||||
|
||||
// Get som debug data from a couple of rows now and then
|
||||
if ( y < (16 * 0 + 0x20) && (m_framecnt & 0xff) == 0 )
|
||||
{
|
||||
LOGROW("%11.6f %s\n - y:%d chr_base:%d ra:%d ma:%d x_count:%d\n", machine().time().as_double(), FUNCNAME,
|
||||
y, y % 16, ra, ma, x_count);
|
||||
}
|
||||
|
||||
// Video Off handling
|
||||
if ((m_mode_control & MR1_VIDEO) == 0)
|
||||
{
|
||||
for (int i = 0; i < get_xres(); i++)
|
||||
{
|
||||
bitmap.pix32(y, i) = rgb_t::black();
|
||||
}
|
||||
}
|
||||
|
||||
// Graphic modes using only pixeldata, soft fonts are 8x8 or 8x16 but this is transparant to the code
|
||||
else if ((m_vmode & VM_GRAPH) != 0)
|
||||
{
|
||||
logerror("EPC MDA: graphic modes not supported yet\n");
|
||||
}
|
||||
|
||||
// Text modes using one of two 9x16 fonts in character rom
|
||||
else
|
||||
{
|
||||
// Adjust row pointer if in monochrome text mode as we insert two scanlines per row of characters (see below)
|
||||
if (m_vmode & VM_MONO)
|
||||
{
|
||||
p = &bitmap.pix32((y / 14) * 16 + y % 14);
|
||||
}
|
||||
|
||||
// Loop over each character in a row
|
||||
for ( i = 0; i < x_count; i++ )
|
||||
{
|
||||
uint16_t offset = ( ( ma + i ) << 1 ) & 0x0FFF;
|
||||
uint8_t chr = m_videoram[ offset ];
|
||||
uint8_t attr = m_videoram[ offset + 1 ];
|
||||
uint8_t data = m_chargen[ ((m_mode_control2 & MR2_CHRSET) ? 0x1000 : 0) + chr_base + chr * 16];
|
||||
|
||||
// Default to light text on dark background
|
||||
uint8_t fg = 2;
|
||||
uint8_t bg = 0;
|
||||
|
||||
if (y == 0 && i == 0) LOGCHRG(" - Offset: %04x Chr: '%c'[%02x] Attr: %02x Chr_base: %04x\n", offset, chr, chr, attr, chr_base);
|
||||
|
||||
// Prepare some special monochrome emulation cases
|
||||
if ( m_vmode & VM_MONO)
|
||||
{
|
||||
// Handle invisible characters
|
||||
if ( (attr & (ATTR_FOREG | ATTR_BACKG)) == 0 )
|
||||
{
|
||||
data = 0x00;
|
||||
}
|
||||
// Handle reversed characters
|
||||
else if ( (attr & (ATTR_BACKG)) == ATTR_BACKG )
|
||||
{
|
||||
fg = 0;
|
||||
bg = 2;
|
||||
}
|
||||
}
|
||||
else // prepare some special color emulation cases
|
||||
{
|
||||
// Handle invisible characters
|
||||
if ( (attr & (ATTR_FOREG)) == ((attr & ATTR_BACKG) >> 4))
|
||||
{
|
||||
data = 0x00;
|
||||
}
|
||||
// Handle reversed characters
|
||||
else if ( (attr & ATTR_BACKG) == ATTR_BACKG ||
|
||||
(attr & ATTR_FOREG) == 0 )
|
||||
{
|
||||
fg = 0;
|
||||
bg = 2;
|
||||
}
|
||||
}
|
||||
|
||||
// Handle intense foreground
|
||||
if ((attr & ATTR_INTEN) != 0 && fg == 2)
|
||||
{
|
||||
fg = 3;
|
||||
}
|
||||
|
||||
// Handle intense background if blinking is disabled
|
||||
if ((m_mode_control & MR1_BLINK) == 0 &&
|
||||
(attr & ATTR_BLINK) != 0 && bg == 2)
|
||||
{
|
||||
bg = 3;
|
||||
}
|
||||
|
||||
// Handle cursor and blinks
|
||||
if ( i == (cursor_x))
|
||||
{
|
||||
if ( m_framecnt & 0x08 )
|
||||
{
|
||||
data = 0xFF;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if ( (m_mode_control & MR1_BLINK) &&
|
||||
( attr & ATTR_BLINK ) && ( m_framecnt & 0x10 ) )
|
||||
{
|
||||
data = 0x00;
|
||||
}
|
||||
}
|
||||
|
||||
*p = (*m_pal)[( data & 0x80 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x40 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x20 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x10 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x08 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x04 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x02 ) ? fg : bg]; p++;
|
||||
*p = (*m_pal)[( data & 0x01 ) ? fg : bg]; p++;
|
||||
if (chr >= 0xc0 && chr <= 0xdf)
|
||||
*p = (*m_pal)[( data & 0x01 ) ? fg : bg]; // 9th pixel col is a copy of col 8
|
||||
else
|
||||
*p = (*m_pal)[bg]; // 9th pixel col is just background
|
||||
p++;
|
||||
|
||||
// Insert two extra scanlines in monochrome text mode to get 400 lines and support underline, needs verification on actual hardware.
|
||||
// The technical manual says that the character box is 9x16 pixels in 80x25 character mode which equals 720x400 resolution but the
|
||||
// CRTC calls back for only 350 lines. Assumption is that there is hardware adding these lines and that handles underlining. In color
|
||||
// emulation text mode all 400 lines are called for in 80x25 and this mode does not support underlining according to the technical manual
|
||||
if ( ra == 13 && (m_vmode & VM_MONO) )
|
||||
{
|
||||
uint16_t row = ra + (y / 14) * 16; // Calculate correct row number including the extra 2 lines per each row of characters
|
||||
for ( int j = 0; j < 9; j++)
|
||||
{
|
||||
if (chr >= 0xb3 && chr <= 0xdf) // Handle the meta graphics characters
|
||||
{
|
||||
bitmap.pix32(row + 1, j + i * 9) = (*m_pal)[( data & (0x80 >> j) ) || (j == 8 && (data & 0x01)) ? fg : bg];
|
||||
bitmap.pix32(row + 2, j + i * 9) = (*m_pal)[( data & (0x80 >> j) ) || (j == 8 && (data & 0x01)) ? fg : bg];
|
||||
}
|
||||
else
|
||||
{
|
||||
// Handle underline
|
||||
bitmap.pix32(row + 1, j + i * 9) =(*m_pal)[( attr & ATTR_FOREG ) == ATTR_ULINE ? fg : bg];
|
||||
bitmap.pix32(row + 2, j + i * 9) = (*m_pal)[bg];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------
|
||||
// Port definitions
|
||||
//--------------------------------------------------------------------
|
||||
static INPUT_PORTS_START( epc_mda )
|
||||
PORT_START("S1")
|
||||
PORT_DIPNAME( 0x01, 0x00, "Color emulation") PORT_DIPLOCATION("S1:1")
|
||||
PORT_DIPSETTING( 0x00, "Disabled" )
|
||||
PORT_DIPSETTING( 0x01, "Enabled" )
|
||||
PORT_DIPUNUSED_DIPLOC(0x02, 0x02, "S1:2")
|
||||
|
||||
PORT_START("MONITOR")
|
||||
PORT_CONFNAME( 0x01, 0x00, "Ericsson Monochrome HR Monitors") PORT_CHANGED_MEMBER(DEVICE_SELF, isa8_epc_mda_device, monitor_changed, 0)
|
||||
PORT_CONFSETTING( 0x00, "Amber 3111")
|
||||
PORT_CONFSETTING( 0x01, "B&W 3712/3715")
|
||||
INPUT_PORTS_END
|
||||
|
||||
INPUT_CHANGED_MEMBER(isa8_epc_mda_device::monitor_changed)
|
||||
{
|
||||
if ((m_io_monitor->read() & 1) == 1)
|
||||
{
|
||||
m_pal = &m_371x_pal;
|
||||
}
|
||||
else
|
||||
{
|
||||
m_pal = &m_3111_pal;
|
||||
}
|
||||
}
|
||||
|
||||
ioport_constructor isa8_epc_mda_device::device_input_ports() const
|
||||
{
|
||||
return INPUT_PORTS_NAME( epc_mda );
|
||||
}
|
||||
|
||||
@ -137,4 +137,85 @@ private:
|
||||
// device type definition
|
||||
DECLARE_DEVICE_TYPE(ISA8_EC1840_0002, isa8_ec1840_0002_device)
|
||||
|
||||
// ======================> isa8_epc_mda_device
|
||||
|
||||
class isa8_epc_mda_device :
|
||||
public isa8_mda_device
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
isa8_epc_mda_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
||||
|
||||
virtual DECLARE_READ8_MEMBER(io_read) override;
|
||||
virtual DECLARE_WRITE8_MEMBER(io_write) override;
|
||||
|
||||
/* Monitor */
|
||||
DECLARE_INPUT_CHANGED_MEMBER(monitor_changed);
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start() override;
|
||||
virtual void device_reset() override;
|
||||
|
||||
// optional information overrides
|
||||
virtual void device_add_mconfig(machine_config &config) override;
|
||||
virtual const tiny_rom_entry *device_rom_region() const override;
|
||||
virtual ioport_constructor device_input_ports() const override;
|
||||
|
||||
private:
|
||||
inline int get_xres();
|
||||
inline int get_yres();
|
||||
//virtual DECLARE_WRITE8_MEMBER(mode_control_w) override;
|
||||
|
||||
enum {
|
||||
VM_COLS80 = 0x01,
|
||||
VM_GRAPH = 0x02,
|
||||
VM_HOR640 = 0x04,
|
||||
VM_MONO = 0x08,
|
||||
VM_VER400 = 0x10
|
||||
};
|
||||
|
||||
enum {
|
||||
MR1_COLS80 = 0x01,
|
||||
MR1_GRAPH = 0x02,
|
||||
MR1_VIDEO = 0x08,
|
||||
MR1_HOR640 = 0x10,
|
||||
MR1_BLINK = 0x20
|
||||
};
|
||||
|
||||
enum {
|
||||
MR2_COLEMU = 0x04,
|
||||
MR2_CHRSET = 0x40,
|
||||
MR2_VER400 = 0x80
|
||||
};
|
||||
|
||||
enum {
|
||||
ATTR_BLINK = 0x80,
|
||||
ATTR_BACKG = 0x70,
|
||||
ATTR_INTEN = 0x08,
|
||||
ATTR_FOREG = 0x07,
|
||||
ATTR_ULINE = 0x01,
|
||||
};
|
||||
virtual MC6845_UPDATE_ROW( crtc_update_row ) override;
|
||||
//MC6845_UPDATE_ROW( mda_lowres_text_inten_update_row );
|
||||
//MC6845_UPDATE_ROW( mda_lowres_text_blink_update_row );
|
||||
|
||||
std::unique_ptr<uint8_t[]> m_soft_chr_gen;
|
||||
required_ioport m_s1;
|
||||
uint8_t m_color_mode;
|
||||
uint8_t m_mode_control2;
|
||||
required_device<screen_device> m_screen;
|
||||
required_ioport m_io_monitor;
|
||||
required_region_ptr<uint8_t> m_chargen;
|
||||
|
||||
uint8_t m_vmode;
|
||||
rgb_t (*m_pal)[4];
|
||||
rgb_t m_3111_pal[4];
|
||||
rgb_t m_371x_pal[4];
|
||||
bool m_installed;
|
||||
};
|
||||
|
||||
// device type definition
|
||||
DECLARE_DEVICE_TYPE(ISA8_EPC_MDA, isa8_epc_mda_device)
|
||||
|
||||
#endif // MAME_BUS_ISA_MDA_H
|
||||
|
||||
@ -259,6 +259,7 @@ const double XTAL::known_xtals[] = {
|
||||
18'720'000, /* 18.72_MHz_XTAL Nokia MikroMikko 1 */
|
||||
18'867'000, /* 18.867_MHz_XTAL Decision Data IS-482 */
|
||||
18'869'600, /* 18.8696_MHz_XTAL Memorex 2178 */
|
||||
19'170'000, /* Ericsson ISA8 Monochrome HR Graphics Board */
|
||||
19'339'600, /* 19.3396_MHz_XTAL TeleVideo TVI-955 80-column display clock */
|
||||
19'584'000, /* 19.584_MHz_XTAL ADM-42 */
|
||||
19'600'000, /* 19.6_MHz_XTAL Universal Mr. Do - Model 8021 PCB */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user