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x68k: ELSE if (nw)

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pic8259: spurious irq 7 (nw)
pc9801: windows 3.1 checks port 61h? (nw)
This commit is contained in:
cracyc 2016-02-12 21:37:08 -06:00
parent ae6a55f075
commit bd7aee2421
3 changed files with 12 additions and 2 deletions
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5
src/devices/machine/pic8259.cpp
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@ -133,7 +133,10 @@ UINT32 pic8259_device::acknowledge()
}
}
}
return 0;
logerror("Spurious IRQ\n");
if(m_is_x86)
return m_base + 7;
return 0xcd0000 + (m_vector_addr_high << 8) + m_vector_addr_low + (7 << (3-m_vector_size));
}

7
src/mame/drivers/pc9801.cpp
View File

@ -734,6 +734,7 @@ public:
UINT8 freq_index;
}m_mouse;
TIMER_DEVICE_CALLBACK_MEMBER( mouse_irq_cb );
DECLARE_READ8_MEMBER(unk_r);
DECLARE_DRIVER_INIT(pc9801_kanji);
inline void set_dma_channel(int channel, int state);
@ -2485,6 +2486,7 @@ static ADDRESS_MAP_START( pc9821_io, AS_IO, 32, pc9801_state )
AM_RANGE(0x0050, 0x0053) AM_WRITE8(pc9801rs_nmi_w, 0xffffffff)
AM_RANGE(0x005c, 0x005f) AM_READ16(pc9821_timestamp_r,0xffffffff) AM_WRITENOP // artic
AM_RANGE(0x0060, 0x0063) AM_DEVREADWRITE8("upd7220_chr", upd7220_device, read, write, 0x00ff00ff) //upd7220 character ports / <undefined>
AM_RANGE(0x0060, 0x0063) AM_READ8(unk_r, 0xff00ff00) // mouse related (unmapped checking for AT keyb controller\PS/2 mouse?)
AM_RANGE(0x0064, 0x0067) AM_WRITE8(vrtc_clear_w, 0x000000ff)
AM_RANGE(0x0068, 0x006b) AM_WRITE8(pc9821_video_ff_w, 0x00ff00ff) //mode FF / <undefined>
AM_RANGE(0x0070, 0x007f) AM_DEVREADWRITE8("pit8253", pit8253_device, read, write, 0xff00ff00)
@ -2969,6 +2971,11 @@ WRITE8_MEMBER(pc9801_state::ppi_mouse_portc_w)
m_mouse.control = data;
}
READ8_MEMBER(pc9801_state::unk_r)
{
return 0xff;
}
/****************************************
*
* UPD765 interface

2
src/mame/video/x68k.cpp
View File

@ -867,7 +867,7 @@ bool x68k_state::x68k_draw_gfx_scanline( bitmap_ind16 &bitmap, rectangle cliprec
else
bitmap.pix16(scanline, pixel) = (pal[colour] & 0xfffe) + blend;
}
if(((m_video.reg[2] & 0x1800) == 0x1000) && (colour & 1))
else if(((m_video.reg[2] & 0x1800) == 0x1000) && (colour & 1))
m_special.pix16(scanline, pixel) = colour;
else
bitmap.pix16(scanline, pixel) = colour;