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drw80pkr - more code cleanup, no additions to whatsnew here

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This commit is contained in:
Jim Stolis 2009-11-20 04:38:07 +00:00
parent 8b7f643612
commit 620a6cbe4b
1 changed files with 5 additions and 10 deletions
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15
src/mame/drivers/drw80pkr.c
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@ -78,9 +78,7 @@ static WRITE8_HANDLER( prog_w )
// Bankswitch Program Memory
if (prog == 0x01)
{
active_bank++;
if (active_bank == 2)
active_bank = 0;
active_bank = active_bank ^ 0x01;
memory_set_bank(space->machine, 1, active_bank);
}
@ -99,15 +97,12 @@ static WRITE8_HANDLER( drw80pkr_io_w )
{
n_offs = ((p1 & 0xc0) << 2 ) + offset;
color_ram[n_offs] = data & 0x0f;
if (p2 == 0x3f)
{
video_ram[n_offs] = data;
tilemap_mark_tile_dirty(bg_tilemap, n_offs);
video_ram[n_offs] = data; // low address
} else {
if ((data & 0xf0) != 0x00)
video_ram[n_offs] += ((data & 0xf0) << 4 );
color_ram[n_offs] = data & 0x0f; // color palette
video_ram[n_offs] += ((data & 0xf0) << 4 ); // high address
}
tilemap_mark_tile_dirty(bg_tilemap, n_offs);
@ -223,7 +218,7 @@ static READ8_HANDLER( drw80pkr_io_r )
// play slightly with very messed up hold buttons etc.
//
// Open/Close the door with 'O'
// Press '5' with door open to play credit
// Press '5' (twice) with door open to play credit
// Press '1' to draw/deal
//
case 0x0000: ret = 0x00; break;