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Bavarese 2016-12-12 09:15:47 +01:00 committed by GitHub
parent e94ce2eec9
commit 3f82e5bc14
1 changed files with 13 additions and 14 deletions
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27
src/mame/drivers/rainbow.cpp
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@ -2,7 +2,7 @@
// ENABLE BY UNCOMMENTING. ADDITIONALLY, SET SMOOTH SCROLL IN EMULATION (DISABLE BY SETTING JUMP SCROLL. To enter SETUP hit ScrollLock)-
//#define BOOST_DEBUG_PERFORMANCE
/* GDC COLOR EMULATION
//-------------------- Differences to VT240: ---------------------------------------------------
// - Registers of graphics option not directly mapped (indirect access via mode register)
@ -758,19 +758,19 @@ UPD7220_DISPLAY_PIXELS_MEMBER( rainbow_state::hgdc_display_pixels )
// _READ_ BIT MAP from 2 or 4 planes (plane 0 is least, plane 3 most significant). See page 42 / 43
if(m_GDC_MODE_REGISTER & GDC_MODE_HIGHRES)
{
address = ( m_GDC_SCROLL_BUFFER[ ((address & 0x7FC0) >> 7) & 0xff ] << 7) | (address & 0x7F);
plane0 = m_video_ram[((address & 0x7fff) + 0x00000) >> 1];
plane1 = m_video_ram[((address & 0x7fff) + 0x10000) >> 1];
plane2 = plane3 = 0;
address = ( m_GDC_SCROLL_BUFFER[ ((address & 0x7FC0) >> 7) & 0xff ] << 7) | (address & 0x7F);
plane0 = m_video_ram[((address & 0x7fff) + 0x00000) >> 1];
plane1 = m_video_ram[((address & 0x7fff) + 0x10000) >> 1];
plane2 = plane3 = 0;
}
else
{
address = ( m_GDC_SCROLL_BUFFER[ ((address & 0x3FC0) >> 7) & 0xff ] << 7) | (address & 0x7F);
// MED.RESOLUTION (4 planes, 4 color bits, 16 color map entries / 16 (4) MONOCHROME SHADES)
plane0 = m_video_ram[((address & 0x3fff) + 0x00000) >> 1];
plane1 = m_video_ram[((address & 0x3fff) + 0x10000) >> 1];
plane2 = m_video_ram[((address & 0x3fff) + 0x20000) >> 1];
plane3 = m_video_ram[((address & 0x3fff) + 0x30000) >> 1];
address = ( m_GDC_SCROLL_BUFFER[ ((address & 0x3FC0) >> 7) & 0xff ] << 7) | (address & 0x7F);
// MED.RESOLUTION (4 planes, 4 color bits, 16 color map entries / 16 -or 4- MONOCHROME SHADES)
plane0 = m_video_ram[((address & 0x3fff) + 0x00000) >> 1];
plane1 = m_video_ram[((address & 0x3fff) + 0x10000) >> 1];
plane2 = m_video_ram[((address & 0x3fff) + 0x20000) >> 1];
plane3 = m_video_ram[((address & 0x3fff) + 0x30000) >> 1];
}
bool mono = (m_inp13->read() == MONO_MONITOR) ? true : false; // 1 = MONO, 2 = COLOR, 3 = DUAL MONITOR
@ -828,7 +828,7 @@ void rainbow_state::machine_start()
if (rom[0xf4000 + 0x3ffc] == 0x31) // 100-B (5.01) 0x35 would test for V5.05
{
rom[0xf4000 + 0x0303] = 0x00; // disable CRC check
rom[0xf4000 + 0x135e] = 0x00; // FLOPPY / RX-50 WORKAROUND: in case of Z80 RESPONSE FAILURE ($80 bit set in AL), do not block floppy access.
rom[0xf4000 + 0x135e] = 0x00; // Floppy / RX-50 workaround: in case of Z80 RESPONSE FAILURE ($80 bit set in AL), do not block floppy access.
rom[0xf4000 + 0x198F] = 0xeb; // cond.JMP to uncond.JMP (disables error message 60...)
}
@ -843,7 +843,7 @@ AM_RANGE(0x10000, END_OF_RAM) AM_RAM
// There is a 2212 (256 x 4 bit) NVRAM from 0xed000 to 0xed0ff (*)
// shadowed at $ec000 - $ecfff and from $ed100 - $edfff.
// (*) ED000 - ED0FF is the area the DEC-100-B BIOS accesses and checks
// (*) ED000 - ED0FF is the area the DEC-100-B Bios accesses and checks
// - Specs say that the CPU has direct access to volatile RAM only.
// So NVRAM is hidden and loads & saves are triggered within the
@ -2863,7 +2863,6 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w)
OPTION_RESET_PATTERNS
}
//m_PORT50 = data;
break;
case 1: // 51h - DATA loaded into register previously written to 53h.