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Dumb game writes to the pixel pal bank before writing to the paletteram ...

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This commit is contained in:
Angelo Salese 2011-08-22 13:17:03 +00:00
parent 95b3fea858
commit 80ccc62d18
2 changed files with 16 additions and 4 deletions
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1
src/mame/includes/paradise.h
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@ -21,6 +21,7 @@ public:
bitmap_t *m_tmpbitmap; bitmap_t *m_tmpbitmap;
UINT8 m_palbank; UINT8 m_palbank;
UINT8 m_priority; UINT8 m_priority;
UINT8 m_pixbank;
int m_sprite_inc; int m_sprite_inc;
int irq_count; int irq_count;

19
src/mame/video/paradise.c
View File

@ -38,6 +38,16 @@ WRITE8_HANDLER( tgtball_flipscreen_w )
flip_screen_set(space->machine(), data ? 1 : 0); flip_screen_set(space->machine(), data ? 1 : 0);
} }
/* Note: Penky updates pixel palette bank register BEFORE actually writing to the paletteram. */
static void update_pix_palbank(running_machine &machine)
{
paradise_state *state = machine.driver_data<paradise_state>();
int i;
for (i = 0; i < 15; i++)
palette_set_color_rgb(machine, 0x800 + i, state->m_paletteram[0x200 + state->m_pixbank + i + 0x800 * 0], state->m_paletteram[0x200 + state->m_pixbank + i + 0x800 * 1],
state->m_paletteram[0x200 + state->m_pixbank + i + 0x800 * 2]);
}
/* 800 bytes for red, followed by 800 bytes for green & 800 bytes for blue */ /* 800 bytes for red, followed by 800 bytes for green & 800 bytes for blue */
WRITE8_HANDLER( paradise_palette_w ) WRITE8_HANDLER( paradise_palette_w )
@ -47,6 +57,8 @@ WRITE8_HANDLER( paradise_palette_w )
offset %= 0x800; offset %= 0x800;
palette_set_color_rgb(space->machine(), offset, state->m_paletteram[offset + 0x800 * 0], state->m_paletteram[offset + 0x800 * 1], palette_set_color_rgb(space->machine(), offset, state->m_paletteram[offset + 0x800 * 0], state->m_paletteram[offset + 0x800 * 1],
state->m_paletteram[offset + 0x800 * 2]); state->m_paletteram[offset + 0x800 * 2]);
update_pix_palbank(space->machine());
} }
/*************************************************************************** /***************************************************************************
@ -72,13 +84,12 @@ WRITE8_HANDLER( paradise_vram_0_w )
WRITE8_HANDLER( paradise_palbank_w ) WRITE8_HANDLER( paradise_palbank_w )
{ {
paradise_state *state = space->machine().driver_data<paradise_state>(); paradise_state *state = space->machine().driver_data<paradise_state>();
int i;
int bank1 = (data & 0x0e) | 1; int bank1 = (data & 0x0e) | 1;
int bank2 = (data & 0xf0); int bank2 = (data & 0xf0);
for (i = 0; i < 15; i++) state->m_pixbank = bank2;
palette_set_color_rgb(space->machine(), 0x800 + i, state->m_paletteram[0x200 + bank2 + i + 0x800 * 0], state->m_paletteram[0x200 + bank2 + i + 0x800 * 1],
state->m_paletteram[0x200 + bank2 + i + 0x800 * 2]); update_pix_palbank(space->machine());
if (state->m_palbank != bank1) if (state->m_palbank != bank1)
{ {