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Diffstat (limited to 'src/mame/drivers/sapi1.c')
-rw-r--r-- | src/mame/drivers/sapi1.c | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/src/mame/drivers/sapi1.c b/src/mame/drivers/sapi1.c new file mode 100644 index 00000000000..732baca6c3e --- /dev/null +++ b/src/mame/drivers/sapi1.c @@ -0,0 +1,671 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic, Robbbert +/*************************************************************************** + + SAPI-1 driver by Miodrag Milanovic + + 2008-09-09 Preliminary driver. + + 2010-12-07 Added some code to allow sapizps3 to read its rom. + With no available docs, the i/o ports are a guess. The ram + allocation is based on the actions of the various bios roms. + Port 25 is used as a jump vector. in a,(25); ld l,a; jp(hl). + + 2012-04-19 Connected sapizps3 to a terminal. It is trying to + load a 128-byte boot sector from a floppy disk. + Modernised driver. + Connected sapizps2 to ascii keyboard. System is now usable. + According to wikipedia, sapi1 & 2 have cassette facility, + while sapi3 uses 8 inch floppy disk. + +ToDo: +- Add cassette to sapi1 and 2 +-- UART on port 12, save and load bytes +-- port 11 bit 7 for load, chr available +-- port 11 bit 6 for save, tx buffer empty +- sapi3 is trying to read a disk, so there is no response after showing the logo + +Unable to proceed due to no info available (& in English). + +****************************************************************************/ + + +#include "emu.h" +#include "cpu/i8085/i8085.h" +#include "cpu/z80/z80.h" +#include "video/mc6845.h" +#include "machine/ram.h" +#include "machine/keyboard.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" +#define KEYBOARD_TAG "keyboard" + +class sapi1_state : public driver_device +{ +public: + sapi1_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_p_videoram(*this, "videoram"), + m_bank1(*this, "bank1"), + m_line0(*this, "LINE0"), + m_line1(*this, "LINE1"), + m_line2(*this, "LINE2"), + m_line3(*this, "LINE3"), + m_line4(*this, "LINE4"), + m_maincpu(*this, "maincpu"), + m_palette(*this, "palette") + { + } + + optional_shared_ptr<UINT8> m_p_videoram; + DECLARE_READ8_MEMBER(sapi1_keyboard_r); + DECLARE_WRITE8_MEMBER(sapi1_keyboard_w); + DECLARE_READ8_MEMBER(sapi2_keyboard_status_r); + DECLARE_READ8_MEMBER(sapi2_keyboard_data_r); + DECLARE_READ8_MEMBER(sapi3_0c_r); + DECLARE_WRITE8_MEMBER(sapi3_00_w); + DECLARE_READ8_MEMBER(sapi3_25_r); + DECLARE_WRITE8_MEMBER(sapi3_25_w); + DECLARE_WRITE8_MEMBER(kbd_put); + DECLARE_DRIVER_INIT(sapizps3); + DECLARE_DRIVER_INIT(sapizps3a); + DECLARE_DRIVER_INIT(sapizps3b); + DECLARE_MACHINE_RESET(sapi1); + DECLARE_MACHINE_RESET(sapizps3); + MC6845_UPDATE_ROW(crtc_update_row); + UINT32 screen_update_sapi1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + UINT32 screen_update_sapi3(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); +private: + UINT8 m_term_data; + UINT8 m_keyboard_mask; + UINT8 m_refresh_counter; + UINT8 m_zps3_25; + optional_memory_bank m_bank1; // Only for sapi3 + required_ioport m_line0; + required_ioport m_line1; + required_ioport m_line2; + required_ioport m_line3; + required_ioport m_line4; + required_device<cpu_device> m_maincpu; +public: + optional_device<palette_device> m_palette; +}; + +static const UINT8 MHB2501[] = { + 0x0c,0x11,0x13,0x15,0x17,0x10,0x0e,0x00, // @ + 0x04,0x0a,0x11,0x11,0x1f,0x11,0x11,0x00, // A + 0x1e,0x11,0x11,0x1e,0x11,0x11,0x1e,0x00, // B + 0x0e,0x11,0x10,0x10,0x10,0x11,0x0e,0x00, // C + 0x1e,0x09,0x09,0x09,0x09,0x09,0x1e,0x00, // D + 0x1f,0x10,0x10,0x1e,0x10,0x10,0x1f,0x00, // E + 0x1f,0x10,0x10,0x1e,0x10,0x10,0x10,0x00, // F + 0x0e,0x11,0x10,0x10,0x13,0x11,0x0f,0x00, // G + + 0x11,0x11,0x11,0x1f,0x11,0x11,0x11,0x00, // H + 0x0e,0x04,0x04,0x04,0x04,0x04,0x0e,0x00, // I + 0x01,0x01,0x01,0x01,0x11,0x11,0x0e,0x00, // J + 0x11,0x12,0x14,0x18,0x14,0x12,0x11,0x00, // K + 0x10,0x10,0x10,0x10,0x10,0x10,0x1f,0x00, // L + 0x11,0x1b,0x15,0x15,0x11,0x11,0x11,0x00, // M + 0x11,0x11,0x19,0x15,0x13,0x11,0x11,0x00, // N + 0x0e,0x11,0x11,0x11,0x11,0x11,0x0e,0x00, // O + + 0x1e,0x11,0x11,0x1e,0x10,0x10,0x10,0x00, // P + 0x0e,0x11,0x11,0x11,0x15,0x12,0x0d,0x00, // Q + 0x1e,0x11,0x11,0x1e,0x14,0x12,0x11,0x00, // R + 0x0e,0x11,0x10,0x0e,0x01,0x11,0x0e,0x00, // S + 0x1f,0x04,0x04,0x04,0x04,0x04,0x04,0x00, // T + 0x11,0x11,0x11,0x11,0x11,0x11,0x0e,0x00, // U + 0x11,0x11,0x11,0x0a,0x0a,0x04,0x04,0x00, // V + 0x11,0x11,0x11,0x15,0x15,0x15,0x0a,0x00, // W + + 0x11,0x11,0x0a,0x04,0x0a,0x11,0x11,0x00, // X + 0x11,0x11,0x0a,0x04,0x04,0x04,0x04,0x00, // Y + 0x1f,0x01,0x02,0x04,0x08,0x10,0x1f,0x00, // Z + 0x1c,0x10,0x10,0x10,0x10,0x10,0x1c,0x00, // [ + 0x00,0x10,0x08,0x04,0x02,0x01,0x00,0x00, // backslash + 0x07,0x01,0x01,0x01,0x01,0x01,0x07,0x00, // ] + 0x0e,0x11,0x00,0x00,0x00,0x00,0x00,0x00, // ^ + 0x00,0x00,0x00,0x00,0x00,0x00,0x1f,0x00, // _ + + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // + 0x04,0x04,0x04,0x04,0x04,0x00,0x04,0x00, // ! + 0x0a,0x0a,0x0a,0x00,0x00,0x00,0x00,0x00, // " + 0x0a,0x0a,0x1f,0x0a,0x1f,0x0a,0x0a,0x00, // # + 0x00,0x11,0x0e,0x0a,0x0e,0x11,0x00,0x00, // + 0x18,0x19,0x02,0x04,0x08,0x13,0x03,0x00, // % + 0x04,0x0a,0x0a,0x0c,0x15,0x12,0x0d,0x00, // & + 0x04,0x04,0x08,0x00,0x00,0x00,0x00,0x00, // ' + + 0x02,0x04,0x08,0x08,0x08,0x04,0x02,0x00, // ( + 0x08,0x04,0x02,0x02,0x02,0x04,0x08,0x00, // ) + 0x00,0x04,0x15,0x0e,0x15,0x04,0x00,0x00, // * + 0x00,0x04,0x04,0x1f,0x04,0x04,0x00,0x00, // + + 0x00,0x00,0x00,0x00,0x08,0x08,0x10,0x00, // , + 0x00,0x00,0x00,0x1f,0x00,0x00,0x00,0x00, // - + 0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00, // . + 0x00,0x01,0x02,0x04,0x08,0x10,0x00,0x00, // / + + 0x0e,0x11,0x13,0x15,0x19,0x11,0x0e,0x00, // 0 + 0x04,0x0c,0x04,0x04,0x04,0x04,0x0e,0x00, // 1 + 0x0e,0x11,0x01,0x06,0x08,0x10,0x1f,0x00, // 2 + 0x1f,0x01,0x02,0x06,0x01,0x11,0x0e,0x00, // 3 + 0x02,0x06,0x0a,0x12,0x1f,0x02,0x02,0x00, // 4 + 0x1f,0x10,0x1e,0x01,0x01,0x11,0x0e,0x00, // 5 + 0x07,0x08,0x10,0x1e,0x11,0x11,0x0e,0x00, // 6 + 0x1f,0x01,0x02,0x04,0x08,0x08,0x08,0x00, // 7 + + 0x0e,0x11,0x11,0x0e,0x11,0x11,0x0e,0x00, // 8 + 0x0e,0x11,0x11,0x0f,0x01,0x02,0x1c,0x00, // 9 + 0x00,0x00,0x00,0x00,0x08,0x00,0x08,0x00, // : + 0x00,0x00,0x04,0x00,0x04,0x04,0x08,0x00, // ; + 0x02,0x04,0x08,0x10,0x08,0x04,0x02,0x00, // < + 0x00,0x00,0x1f,0x00,0x1f,0x00,0x00,0x00, // = + 0x08,0x04,0x02,0x01,0x02,0x04,0x08,0x00, // > + 0x0e,0x11,0x01,0x02,0x04,0x00,0x04,0x00 // ? +}; + + +/* Address maps */ +static ADDRESS_MAP_START(sapi1_mem, AS_PROGRAM, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x0fff) AM_ROM + AM_RANGE(0x1000, 0x1fff) AM_ROM // Extension ROM + AM_RANGE(0x2000, 0x23ff) AM_RAM + AM_RANGE(0x2400, 0x27ff) AM_READWRITE(sapi1_keyboard_r, sapi1_keyboard_w) // PORT 0 - keyboard + //AM_RANGE(0x2800, 0x2bff) AM_NOP // PORT 1 + //AM_RANGE(0x2c00, 0x2fff) AM_NOP // PORT 2 + //AM_RANGE(0x3000, 0x33ff) AM_NOP // 3214 + AM_RANGE(0x3800, 0x3fff) AM_RAM AM_SHARE("videoram") // AND-1 (video RAM) + AM_RANGE(0x4000, 0x7fff) AM_RAM // REM-1 +ADDRESS_MAP_END + +static ADDRESS_MAP_START(sapi2_mem, AS_PROGRAM, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x0fff) AM_ROM + AM_RANGE(0x1000, 0x1fff) AM_ROM // Extension ROM + AM_RANGE(0x2000, 0x23ff) AM_RAM + AM_RANGE(0x2400, 0x27ff) AM_READ(sapi2_keyboard_status_r) + AM_RANGE(0x2800, 0x28ff) AM_READ(sapi2_keyboard_data_r) + AM_RANGE(0x3800, 0x3fff) AM_RAM AM_SHARE("videoram") // AND-1 (video RAM) + AM_RANGE(0x4000, 0x7fff) AM_RAM // REM-1 +ADDRESS_MAP_END + +static ADDRESS_MAP_START(sapi3_mem, AS_PROGRAM, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_RAM AM_RAMBANK("bank1") + AM_RANGE(0x0800, 0xf7ff) AM_RAM + AM_RANGE(0xf800, 0xffff) AM_RAM AM_SHARE("videoram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START(sapi3a_mem, AS_PROGRAM, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_RAM AM_RAMBANK("bank1") + AM_RANGE(0x0800, 0xf7ff) AM_RAM + AM_RANGE(0xf800, 0xfdff) AM_ROM + AM_RANGE(0xfe00, 0xffff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START(sapi3b_mem, AS_PROGRAM, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_RAM AM_RAMBANK("bank1") + AM_RANGE(0x0800, 0xafff) AM_RAM + AM_RANGE(0xb000, 0xb7ff) AM_RAM AM_SHARE("videoram") + AM_RANGE(0xb800, 0xffff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( sapi3_io, AS_IO, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00, 0x00) AM_WRITE(sapi3_00_w) + AM_RANGE(0x25, 0x25) AM_READWRITE(sapi3_25_r,sapi3_25_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( sapi3a_io, AS_IO, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00, 0x00) AM_WRITE(sapi3_00_w) + AM_RANGE(0x12, 0x12) AM_READ(sapi2_keyboard_data_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0x25, 0x25) AM_READWRITE(sapi3_25_r,sapi3_25_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( sapi3b_io, AS_IO, 8, sapi1_state ) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00, 0x00) AM_WRITE(sapi3_00_w) + AM_RANGE(0x0c, 0x0c) AM_READ(sapi3_0c_r) + AM_RANGE(0x25, 0x25) AM_READWRITE(sapi3_25_r,sapi3_25_w) + AM_RANGE(0xe0, 0xe0) AM_DEVREADWRITE("crtc", mc6845_device, status_r, address_w) + AM_RANGE(0xe1, 0xe1) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( sapi1 ) + PORT_START("LINE0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('~') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR(';') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('+') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('/') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('\'') + + PORT_START("LINE1") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('\xA4') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR(',') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('-') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR(':') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('<') + + PORT_START("LINE2") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('"') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('.') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('*') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('@') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('>') + + PORT_START("LINE3") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('?') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('=') + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('#') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') + + PORT_START("LINE4") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') +INPUT_PORTS_END + + + +/************************************** + + Video + +**************************************/ + +UINT32 sapi1_state::screen_update_sapi1(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + bool val; + UINT16 addr,xpos; + UINT8 chr,attr,ra,x,y,b; + + for(y = 0; y < 24; y++ ) + { + addr = y*64; + xpos = 0; + for(x = 0; x < 40; x++ ) + { + chr = m_p_videoram[addr + x]; + attr = (chr >> 6) & 3; + chr &= 0x3f; + for(ra = 0; ra < 9; ra++ ) + { + for(b = 0; b < 6; b++ ) + { + val = 0; + + if (ra==8) + { + if (attr==2) + val = BIT(m_refresh_counter, 5); + } + else + { + val = BIT(MHB2501[(chr<<3) | ra], 5-b); + if (attr==1) + val = BIT(m_refresh_counter, 5) ? val : 0; + } + + if(attr==3) + { + bitmap.pix16(y*9+ra, xpos+2*b ) = val; + bitmap.pix16(y*9+ra, xpos+2*b+1 ) = val; + } + else + { + bitmap.pix16(y*9+ra, xpos+b ) = val; + } + } + } + xpos+= (attr==3) ? 12 : 6; + if (xpos>=6*40) break; + } + } + m_refresh_counter++; + return 0; +} + +// The attributes seem to be different on this one, they need to be understood, so disabled for now +UINT32 sapi1_state::screen_update_sapi3(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + bool val; + UINT16 addr,xpos; + UINT8 chr,attr,ra,x,y,b; + + for(y = 0; y < 20; y++ ) + { + addr = y*64; + xpos = 0; + for(x = 0; x < 40; x++ ) + { + chr = m_p_videoram[addr + x]; + attr = 0;//(chr >> 6) & 3; + if (chr > 0x3f) + chr &= 0x1f; + + for(ra = 0; ra < 9; ra++ ) + { + for(b = 0; b < 6; b++ ) + { + val = 0; + + if (ra==8) + { + if (attr==2) + val = BIT(m_refresh_counter, 5); + } + else + { + val = BIT(MHB2501[(chr<<3) | ra], 5-b); + if (attr==1) + val = BIT(m_refresh_counter, 5) ? val : 0; + } + + if(attr==3) + { + bitmap.pix16(y*9+ra, xpos+2*b ) = val; + bitmap.pix16(y*9+ra, xpos+2*b+1 ) = val; + } + else + { + bitmap.pix16(y*9+ra, xpos+b ) = val; + } + } + } + xpos+= (attr==3) ? 12 : 6; + if (xpos>=6*40) break; + } + } + m_refresh_counter++; + return 0; +} + +MC6845_UPDATE_ROW( sapi1_state::crtc_update_row ) +{ + const rgb_t *palette = m_palette->palette()->entry_list_raw(); + UINT8 chr,gfx,inv; + UINT16 mem,x; + UINT32 *p = &bitmap.pix32(y); + + for (x = 0; x < x_count; x++) + { + inv = gfx = 0; + if (x == cursor_x) inv ^= 0xff; + mem = (2*(ma + x)) & 0xfff; + chr = m_p_videoram[mem] & 0x3f; + + if (ra < 8) + gfx = MHB2501[(chr<<3) | ra] ^ inv; + + /* Display a scanline of a character */ + *p++ = palette[BIT(gfx, 5)]; + *p++ = palette[BIT(gfx, 4)]; + *p++ = palette[BIT(gfx, 3)]; + *p++ = palette[BIT(gfx, 2)]; + *p++ = palette[BIT(gfx, 1)]; + *p++ = palette[BIT(gfx, 0)]; + } +} + +/************************************** + + Keyboard + +**************************************/ + +READ8_MEMBER( sapi1_state::sapi1_keyboard_r ) +{ + UINT8 key = 0xff; + if (BIT(m_keyboard_mask, 0)) { key &= m_line0->read(); } + if (BIT(m_keyboard_mask, 1)) { key &= m_line1->read(); } + if (BIT(m_keyboard_mask, 2)) { key &= m_line2->read(); } + if (BIT(m_keyboard_mask, 3)) { key &= m_line3->read(); } + if (BIT(m_keyboard_mask, 4)) { key &= m_line4->read(); } + return key; +} + +WRITE8_MEMBER( sapi1_state::sapi1_keyboard_w ) +{ + m_keyboard_mask = (data ^ 0xff ) & 0x1f; +} + +READ8_MEMBER( sapi1_state::sapi2_keyboard_status_r) +{ + return (m_term_data) ? 0 : 1; +} + +READ8_MEMBER( sapi1_state::sapi2_keyboard_data_r) +{ + UINT8 ret = ~m_term_data; + m_term_data = 0; + return ret; +} + +WRITE8_MEMBER( sapi1_state::kbd_put ) +{ + m_term_data = data; +} + +/************************************** + + Machine + +**************************************/ + +READ8_MEMBER( sapi1_state::sapi3_0c_r ) +{ + return 0xc0; +} + +/* switch out the rom shadow */ +WRITE8_MEMBER( sapi1_state::sapi3_00_w ) +{ + m_bank1->set_entry(0); +} + +/* to stop execution in random ram */ +READ8_MEMBER( sapi1_state::sapi3_25_r ) +{ + return m_zps3_25; +} + +WRITE8_MEMBER( sapi1_state::sapi3_25_w ) +{ + m_zps3_25 = data & 0xfc; //?? +} + +MACHINE_RESET_MEMBER( sapi1_state, sapi1 ) +{ + m_keyboard_mask = 0; + m_refresh_counter = 0x20; +} + +MACHINE_RESET_MEMBER( sapi1_state, sapizps3 ) +{ + m_keyboard_mask = 0; + m_bank1->set_entry(1); +} + +DRIVER_INIT_MEMBER( sapi1_state, sapizps3 ) +{ + UINT8 *RAM = memregion("maincpu")->base(); + m_bank1->configure_entries(0, 2, &RAM[0x0000], 0x10000); +} + +DRIVER_INIT_MEMBER( sapi1_state, sapizps3a ) +{ + UINT8 *RAM = memregion("maincpu")->base(); + m_bank1->configure_entries(0, 2, &RAM[0x0000], 0xf800); +} + +DRIVER_INIT_MEMBER( sapi1_state, sapizps3b ) +{ + UINT8 *RAM = memregion("maincpu")->base(); + m_bank1->configure_entries(0, 2, &RAM[0x0000], 0x10000); +} + + +/* Machine driver */ +static MACHINE_CONFIG_START( sapi1, sapi1_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", I8080, 2000000) + MCFG_CPU_PROGRAM_MAP(sapi1_mem) + MCFG_MACHINE_RESET_OVERRIDE(sapi1_state, sapi1) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(40*6, 24*9) + MCFG_SCREEN_VISIBLE_AREA(0, 40*6-1, 0, 24*9-1) + MCFG_SCREEN_UPDATE_DRIVER(sapi1_state, screen_update_sapi1) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") + + /* internal ram */ + MCFG_RAM_ADD(RAM_TAG) + MCFG_RAM_DEFAULT_SIZE("64K") +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( sapi2, sapi1 ) + /* basic machine hardware */ + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(sapi2_mem) + MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) + MCFG_GENERIC_KEYBOARD_CB(WRITE8(sapi1_state, kbd_put)) +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( sapi3, sapi2 ) + /* basic machine hardware */ + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(sapi3_mem) + MCFG_CPU_IO_MAP(sapi3_io) + MCFG_MACHINE_RESET_OVERRIDE(sapi1_state, sapizps3 ) + MCFG_SCREEN_MODIFY("screen") + MCFG_SCREEN_SIZE(40*6, 20*9) + MCFG_SCREEN_VISIBLE_AREA(0, 40*6-1, 0, 20*9-1) + MCFG_SCREEN_UPDATE_DRIVER(sapi1_state, screen_update_sapi3) +MACHINE_CONFIG_END + +static MACHINE_CONFIG_DERIVED( sapi3b, sapi3 ) + /* basic machine hardware */ + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_PROGRAM_MAP(sapi3b_mem) + MCFG_CPU_IO_MAP(sapi3b_io) + + MCFG_MC6845_ADD("crtc", MC6845, "screen", 1008000) // guess + MCFG_MC6845_SHOW_BORDER_AREA(false) + MCFG_MC6845_CHAR_WIDTH(6) + MCFG_MC6845_UPDATE_ROW_CB(sapi1_state, crtc_update_row) + + MCFG_SCREEN_MODIFY("screen") + MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update) + MCFG_SCREEN_NO_PALETTE +MACHINE_CONFIG_END + +static MACHINE_CONFIG_START( sapi3a, sapi1_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", Z80, 2000000) + MCFG_CPU_PROGRAM_MAP(sapi3a_mem) + MCFG_CPU_IO_MAP(sapi3a_io) + MCFG_MACHINE_RESET_OVERRIDE(sapi1_state, sapizps3 ) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(sapi1_state, kbd_put)) + + /* internal ram */ + MCFG_RAM_ADD(RAM_TAG) + MCFG_RAM_DEFAULT_SIZE("64K") +MACHINE_CONFIG_END + + + + +/************************************** + + Roms + +**************************************/ + +ROM_START( sapi1 ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_SYSTEM_BIOS( 0, "mb1", "MB1" ) + ROMX_LOAD( "sapi1.rom", 0x0000, 0x1000, CRC(c6e85b01) SHA1(2a26668249c6161aef7215a1e2b92bfdf6fe3671), ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "mb2", "MB2 (ANK-1)" ) + ROMX_LOAD( "mb2_4.bin", 0x0000, 0x1000, CRC(a040b3e0) SHA1(586990a07a96323741679a11ff54ad0023da87bc), ROM_BIOS(2)) +ROM_END + +ROM_START( sapizps2 ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_SYSTEM_BIOS( 0, "v4", "MIKOS 4" ) + ROMX_LOAD( "36.bin", 0x0000, 0x0800, CRC(a27f340a) SHA1(d07d208fcbe428897336c17197d3e8fb52181f38), ROM_BIOS(1)) + ROMX_LOAD( "37.bin", 0x0800, 0x0800, CRC(30daa708) SHA1(66e990c40788ee25cf6cabd4842a78daf4fcdddd), ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "v5", "MIKOS 5" ) + ROMX_LOAD( "mikos5_1.bin", 0x0000, 0x0800, CRC(c2a83ca3) SHA1(a3678253d7690c89945e791ea0f8e15b081c9126), ROM_BIOS(2)) + ROMX_LOAD( "mikos5_2.bin", 0x0800, 0x0800, CRC(c4458a04) SHA1(0cc909323f0e6507d95e57ea39e1deb8bd57bf89), ROM_BIOS(2)) + ROMX_LOAD( "mikos5_3.bin", 0x1000, 0x0800, CRC(efb499f3) SHA1(78f0ca3ff10d7af4ae94ab820723296beb035f8f), ROM_BIOS(2)) + ROMX_LOAD( "mikos5_4.bin", 0x1800, 0x0800, CRC(4d90e9be) SHA1(8ec554198697550a49432e8210d43700ef1d6a32), ROM_BIOS(2)) + ROM_SYSTEM_BIOS( 2, "mb3", "MB3 (Consul)" ) + ROMX_LOAD( "mb3_1.bin", 0x0000, 0x1000, CRC(be895f88) SHA1(7fc2a92f41d978a9f0ccd0e235ea3c6146adfb6f), ROM_BIOS(3)) +ROM_END + +ROM_START( sapizps3 ) + ROM_REGION( 0x10800, "maincpu", 0 ) + // These 2 bioses use videoram at F800 + ROM_SYSTEM_BIOS( 0, "per", "Perina" ) + ROMX_LOAD( "perina_1988.bin",0x10000, 0x0800, CRC(d71e8d3a) SHA1(9b3a26ea7c2f2c8a1fb10b51c1c880acc9fd806d), ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "1zmod", "JPR-1Zmod" ) + ROMX_LOAD( "jpr1zmod.bin", 0x10000, 0x0800, CRC(69a29b07) SHA1(1cd31032954fcd7d10b1586be62db6f7597eb4f2), ROM_BIOS(2)) +ROM_END + +ROM_START( sapizps3a ) + ROM_REGION( 0x10000, "maincpu", 0 ) + // This bios uses a terminal + ROM_LOAD( "jpr1a.bin", 0xf800, 0x0800, CRC(3ed89786) SHA1(dcc8657b4884bfe58d114c539b733b73d038ee30)) +ROM_END + +ROM_START( sapizps3b ) + ROM_REGION( 0x10800, "maincpu", 0 ) + // This bios uses a 6845 + ROM_LOAD( "pkt1.bin", 0x10000, 0x0800, CRC(ed5a2725) SHA1(3383c15f87f976400b8d0f31829e2a95236c4b6c)) +ROM_END + + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP( 1985, sapi1, 0, 0, sapi1, sapi1, driver_device, 0, "Tesla", "SAPI-1 ZPS 1", MACHINE_NO_SOUND_HW) +COMP( 1985, sapizps2, sapi1, 0, sapi2, sapi1, driver_device, 0, "Tesla", "SAPI-1 ZPS 2", MACHINE_NO_SOUND_HW) +COMP( 1985, sapizps3, sapi1, 0, sapi3, sapi1, sapi1_state, sapizps3, "Tesla", "SAPI-1 ZPS 3", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW) +COMP( 1985, sapizps3a,sapi1, 0, sapi3a, sapi1, sapi1_state, sapizps3a, "Tesla", "SAPI-1 ZPS 3 (terminal)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW) +COMP( 1985, sapizps3b,sapi1, 0, sapi3b, sapi1, sapi1_state, sapizps3b, "Tesla", "SAPI-1 ZPS 3 (6845)", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW) |