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x68000: More fiddling with the dot clock (nw)

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AJR 2018-06-25 21:56:49 -04:00
parent 36d8aec535
commit 2e2072c7fc
1 changed files with 2 additions and 2 deletions
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4
src/mame/video/x68k.cpp
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@ -171,7 +171,7 @@ void x68k_state::x68k_crtc_refresh_mode()
// LOG("CRTC regs - %i %i %i %i - %i %i %i %i - %i - %i\n",m_crtc.reg[0],m_crtc.reg[1],m_crtc.reg[2],m_crtc.reg[3], // LOG("CRTC regs - %i %i %i %i - %i %i %i %i - %i - %i\n",m_crtc.reg[0],m_crtc.reg[1],m_crtc.reg[2],m_crtc.reg[3],
// m_crtc.reg[4],m_crtc.reg[5],m_crtc.reg[6],m_crtc.reg[7],m_crtc.reg[8],m_crtc.reg[9]); // m_crtc.reg[4],m_crtc.reg[5],m_crtc.reg[6],m_crtc.reg[7],m_crtc.reg[8],m_crtc.reg[9]);
unsigned div = BIT(m_crtc.reg[20], 1) ? 1 : BIT(m_crtc.reg[20], 0) ? 2 : 4; unsigned div = (m_crtc.reg[20] & 0x03) == 0 ? 4 : 2;
if ((m_crtc.reg[20] & 0x0c) == 0) if ((m_crtc.reg[20] & 0x0c) == 0)
div *= BIT(m_crtc.reg[20], 4) ? 3 : 2; div *= BIT(m_crtc.reg[20], 4) ? 3 : 2;
attotime refresh = attotime::from_ticks(scr.max_x * scr.max_y, (BIT(m_crtc.reg[20], 4) ? 69.55199_MHz_XTAL : 38.86363_MHz_XTAL) / div); attotime refresh = attotime::from_ticks(scr.max_x * scr.max_y, (BIT(m_crtc.reg[20], 4) ? 69.55199_MHz_XTAL : 38.86363_MHz_XTAL) / div);
@ -442,7 +442,7 @@ WRITE16_MEMBER(x68k_state::x68k_crtc_w )
if(data & 0x0400) if(data & 0x0400)
m_crtc.interlace = 1; m_crtc.interlace = 1;
}*/ }*/
LOG("CRTC: Register 20 = %04x\n", m_crtc.reg[20]); logerror("CRTC: Register 20 = %04x\n", m_crtc.reg[20]);
x68k_crtc_refresh_mode(); x68k_crtc_refresh_mode();
break; break;
case 576: // operation register case 576: // operation register