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roul: better palette implementation and a general clean up

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This commit is contained in:
Roberto Zandona 2009-04-18 15:10:14 +00:00
parent 7775cc587f
commit d18df87b60
1 changed files with 42 additions and 30 deletions
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72
src/mame/drivers/roul.c
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@ -58,38 +58,42 @@ static UINT8 lamp_old = 0;
static PALETTE_INIT( roul )
{
int bit0, bit1, bit2 , r, g, b;
int brightness;
int bit6, bit7, bit0, bit1, r, g, b;
int i;
for (i = 0; i < 0x20; ++i)
{
brightness = (color_prom[0] >> 7) & 0x01;
bit0 = brightness;
bit1 = ((color_prom[0] >> 0) & 0x01) * brightness;
bit2 = ((color_prom[0] >> 1) & 0x01) * brightness;
b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
bit0 = brightness;
bit1 = ((color_prom[0] >> 2) & 0x01) * brightness;
bit2 = ((color_prom[0] >> 3) & 0x01) * brightness;
g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
bit0 = brightness;
bit1 = ((color_prom[0] >> 4) & 0x01) * brightness;
bit2 = ((color_prom[0] >> 5) & 0x01) * brightness;
r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
bit7 = (color_prom[0] >> 7) & 0x01;
bit6 = (color_prom[0] >> 6) & 0x01;
bit0 = (color_prom[0] >> 0) & 0x01;
bit1 = (color_prom[0] >> 1) & 0x01;
b = 0x0e * bit6 + 0x1f * bit0 + 0x43 * bit7 + 0x8f * bit1;
bit0 = (color_prom[0] >> 2) & 0x01;
bit1 = (color_prom[0] >> 3) & 0x01;
g = 0x0e * bit6 + 0x1f * bit0 + 0x43 * bit7 + 0x8f * bit1;
bit0 = (color_prom[0] >> 4) & 0x01;
bit1 = (color_prom[0] >> 5) & 0x01;
r = 0x0e * bit6 + 0x1f * bit0 + 0x43 * bit7 + 0x8f * bit1;
palette_set_color(machine, i, MAKE_RGB(r, g, b));
color_prom++;
}
}
static READ8_HANDLER( testf5_r )
static READ8_HANDLER( blitter_status_r )
{
logerror("Read unknown port $f5 at %04x\n",cpu_get_pc(space->cpu));
return mame_rand(space->machine) & 0x00ff;
/*
code check bit 6 and bit 7
bit 7 -> blitter ready
bit 6 -> ??? (after unknown blitter command : [80][80][08][02])
*/
return 0xc0; // blitter ready
// logerror("Read unknown port $f5 at %04x\n",cpu_get_pc(space->cpu));
// return mame_rand(space->machine) & 0x00ff;
}
static WRITE8_HANDLER( testfx_w )
static WRITE8_HANDLER( blitter_cmd_w )
{
reg[offset] = data;
if (offset==2)
@ -104,16 +108,24 @@ static WRITE8_HANDLER( testfx_w )
if (reg[3] & 0x10) ydirection = -1;
if (reg[3] & 0x20) xdirection = -1;
if (reg[3] & 0x40)
for (i = 0; i < width; i++ )
videobuf[(y + i * ydirection) * 256 + x] = color;
else if (reg[3] & 0x80)
for (i = 0; i < width; i++ )
videobuf[y * 256 + x + i * xdirection] = color;
else
logerror("Write [%02x] -> %02x\n",offset,data);
switch(reg[3] & 0xc0)
{
case 0x00: // reg[4] used
logerror("Blitter command 0 : [%02x][%02x][%02x][%02x]\n",reg[0],reg[1],reg[2],reg[3],reg[4]);
break;
case 0x40: // reg[4] not used
for (i = 0; i < width; i++ )
videobuf[(y + i * ydirection) * 256 + x] = color;
break;
case 0x80: // reg[4] not used
for (i = 0; i < width; i++ )
videobuf[y * 256 + x + i * xdirection] = color;
break;
case 0xc0:
logerror("Blitter command c : [%02x][%02x][%02x][%02x]\n",reg[0],reg[1],reg[2],reg[3],reg[4]);
}
}
if (offset > 3) logerror("Write [%02x] -> %02x\n",offset,data);
}
static WRITE8_HANDLER( sound_latch_w )
@ -138,8 +150,8 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( roul_cpu_io_map, ADDRESS_SPACE_IO, 8 )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0xf0, 0xf4) AM_WRITE(testfx_w)
AM_RANGE(0xf5, 0xf5) AM_READ(testf5_r)
AM_RANGE(0xf0, 0xf4) AM_WRITE(blitter_cmd_w)
AM_RANGE(0xf5, 0xf5) AM_READ(blitter_status_r)
AM_RANGE(0xf8, 0xf8) AM_READ_PORT("DSW")
AM_RANGE(0xf9, 0xf9) AM_WRITE(ball_w)
AM_RANGE(0xfa, 0xfa) AM_READ_PORT("IN0")