Beispiel #1
0
static WRITE32_HANDLER( vega_vram_w )
{
	vegaeo_state *state = space->machine().driver_data<vegaeo_state>();
	switch(mem_mask)
	{
		case 0xffffffff:
			vega_vram_w(space,offset,data,0xff000000);
			vega_vram_w(space,offset,data,0x00ff0000);
			vega_vram_w(space,offset,data,0x0000ff00);
			vega_vram_w(space,offset,data,0x000000ff);
			return;

		case 0xffff0000:
			vega_vram_w(space,offset,data,0xff000000);
			vega_vram_w(space,offset,data,0x00ff0000);
			return;

		case 0x0000ffff:
			vega_vram_w(space,offset,data,0x0000ff00);
			vega_vram_w(space,offset,data,0x000000ff);
			return;

		default:
			// don't write transparent pen
			if((data & mem_mask) == mem_mask)
				return;
	}

	COMBINE_DATA(&state->m_vega_vram[offset + state->m_vega_vbuffer * (0x14000/4)]);
}
Beispiel #2
0
static WRITE32_HANDLER( vega_vram_w )
{
	switch(mem_mask)
	{
		case 0xffffffff:
			vega_vram_w(space,offset,data,0xff000000);
			vega_vram_w(space,offset,data,0x00ff0000);
			vega_vram_w(space,offset,data,0x0000ff00);
			vega_vram_w(space,offset,data,0x000000ff);
			return;

		case 0xffff0000:
			vega_vram_w(space,offset,data,0xff000000);
			vega_vram_w(space,offset,data,0x00ff0000);
			return;

		case 0x0000ffff:
			vega_vram_w(space,offset,data,0x0000ff00);
			vega_vram_w(space,offset,data,0x000000ff);
			return;

		default:
			// don't write transparent pen
			if((data & mem_mask) == mem_mask)
				return;
	}

	COMBINE_DATA(&vega_vram[offset + vega_vbuffer * (0x14000/4)]);
}