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clgd542x: fix BitBLTs being short by one scanline, and correct colours used when using both patterns and colour expansion together.

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This commit is contained in:
mahlemiut 2015-05-01 14:45:07 +12:00
parent 530a5a9390
commit 81232204cf
1 changed files with 3 additions and 3 deletions
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6
src/emu/video/clgd542x.c
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@ -287,7 +287,7 @@ void cirrus_gd5428_device::start_bitblt()
m_blt_source_current = m_blt_source + (8*(y % 8)); // patterns are linear data
else
m_blt_source_current = m_blt_source + (m_blt_source_pitch*y);
m_blt_dest_current = m_blt_dest + (m_blt_dest_pitch*y);
m_blt_dest_current = m_blt_dest + (m_blt_dest_pitch*(y+1));
}
m_blt_status &= ~0x02;
}
@ -308,7 +308,7 @@ void cirrus_gd5428_device::blit_dword()
{
// TODO: add support for reverse direction
UINT8 x,pixel;
if(m_blt_mode & 0x80) // patterns, colour expand
if(m_blt_mode & 0x80) // colour expand
{
for(x=0;x<32;x++)
{
@ -348,7 +348,7 @@ void cirrus_gd5428_device::copy_pixel(UINT8 src, UINT8 dst)
if(m_blt_mode & 0x40) // enable 8x8 pattern
{
if(m_blt_mode & 0x80) // colour expand
src = (vga.memory[m_blt_source % vga.svga_intf.vram_size] >> (abs((int)(m_blt_source_current - m_blt_source)) % 8)) & 0x01 ? 0xff : 0x00;
src = (vga.memory[m_blt_source % vga.svga_intf.vram_size] >> (abs((int)(m_blt_source_current - m_blt_source)) % 8)) & 0x01 ? vga.gc.enable_set_reset : vga.gc.set_reset;
}
switch(m_blt_rop)