Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-20 12:48:53 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mame/includes/paradise.h
View File

@ -21,6 +21,7 @@ public:
bitmap_t *m_tmpbitmap;
UINT8 m_palbank;
UINT8 m_priority;
UINT8 m_pixbank;
int m_sprite_inc;
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);
}
/* 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 */
WRITE8_HANDLER( paradise_palette_w )
@ -47,6 +57,8 @@ WRITE8_HANDLER( paradise_palette_w )
offset %= 0x800;
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]);
update_pix_palbank(space->machine());
}
/***************************************************************************
@ -72,13 +84,12 @@ WRITE8_HANDLER( paradise_vram_0_w )
WRITE8_HANDLER( paradise_palbank_w )
{
paradise_state *state = space->machine().driver_data<paradise_state>();
int i;
int bank1 = (data & 0x0e) | 1;
int bank2 = (data & 0xf0);
for (i = 0; i < 15; i++)
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]);
state->m_pixbank = bank2;
update_pix_palbank(space->machine());
if (state->m_palbank != bank1)
{