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fix cybrcycc dspram error

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(the video/namcos22.c change is just code relocating)
This commit is contained in:
Michaël Banaan Ananas 2013-08-11 13:10:52 +00:00
parent 66a8328a1f
commit 57bc88f02c
2 changed files with 86 additions and 86 deletions
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2
src/mame/drivers/namcos22.c
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@ -1558,7 +1558,7 @@ WRITE32_MEMBER(namcos22_state::namcos22s_nvmem_w)
READ32_MEMBER(namcos22_state::namcos22_dspram_r) READ32_MEMBER(namcos22_state::namcos22_dspram_r)
{ {
return signed24(m_polygonram[offset]); // only d0-23 are connected return m_polygonram[offset] | 0xff000000; // only d0-23 are connected
} }
WRITE32_MEMBER(namcos22_state::namcos22_dspram_w) WRITE32_MEMBER(namcos22_state::namcos22_dspram_w)

170
src/mame/video/namcos22.c
View File

@ -1436,91 +1436,6 @@ void namcos22_state::draw_polygons(bitmap_rgb32 &bitmap)
/*********************************************************************************************/
WRITE32_MEMBER(namcos22_state::namcos22s_czram_w)
{
int bank = nthword(m_czattr, 0xa/2) & 3;
UINT32 prev = (m_banked_czram[bank][offset * 2] << 16) | m_banked_czram[bank][offset * 2 + 1];
UINT32 temp = prev;
COMBINE_DATA(&temp);
data = temp;
m_banked_czram[bank][offset * 2] = data >> 16;
m_banked_czram[bank][offset * 2 + 1] = data & 0xffff;
m_cz_was_written[bank] |= (prev ^ data);
}
READ32_MEMBER(namcos22_state::namcos22s_czram_r)
{
int bank = nthword(m_czattr, 0xa/2) & 3;
return (m_banked_czram[bank][offset * 2] << 16) | m_banked_czram[bank][offset * 2 + 1];
}
void namcos22_state::recalc_czram()
{
for (int table = 0; table < 4; table++)
{
// as documented above, ss22 czram is 'just' a big compare table
// this is very slow when emulating, so let's recalculate it to a simpler lookup table
if (m_cz_was_written[table])
{
int small_val = 0x2000;
int small_offset = 0;
int large_val = 0;
int large_offset = 0;
int prev = 0x2000;
for (int i = 0; i < 0x100; i++)
{
int val = m_banked_czram[table][i];
// discard if larger than 1fff
if (val > 0x1fff) val = prev;
if (prev > 0x1fff)
{
prev = val;
continue;
}
int start = prev;
int end = val;
if (start > end)
{
start = val;
end = prev;
}
prev = val;
// fill range
for (int j = start; j < end; j++)
m_recalc_czram[table][j] = i;
// remember largest/smallest for later
if (val < small_val)
{
small_val = val;
small_offset = i;
}
if (val > large_val)
{
large_val = val;
large_offset = i;
}
}
// fill possible leftover ranges
for (int j = 0; j < small_val; j++)
m_recalc_czram[table][j] = small_offset;
for (int j = large_val; j < 0x2000; j++)
m_recalc_czram[table][j] = large_offset;
m_cz_was_written[table] = 0;
}
}
}
/*********************************************************************************************/ /*********************************************************************************************/
void namcos22_state::draw_sprite_group(bitmap_rgb32 &bitmap, const rectangle &cliprect, const UINT32 *src, const UINT32 *attr, int num_sprites, int deltax, int deltay, int y_lowres) void namcos22_state::draw_sprite_group(bitmap_rgb32 &bitmap, const rectangle &cliprect, const UINT32 *src, const UINT32 *attr, int num_sprites, int deltax, int deltay, int y_lowres)
@ -2137,6 +2052,88 @@ void namcos22_state::update_palette()
} }
WRITE32_MEMBER(namcos22_state::namcos22s_czram_w)
{
int bank = nthword(m_czattr, 0xa/2) & 3;
UINT32 prev = (m_banked_czram[bank][offset * 2] << 16) | m_banked_czram[bank][offset * 2 + 1];
UINT32 temp = prev;
COMBINE_DATA(&temp);
data = temp;
m_banked_czram[bank][offset * 2] = data >> 16;
m_banked_czram[bank][offset * 2 + 1] = data & 0xffff;
m_cz_was_written[bank] |= (prev ^ data);
}
READ32_MEMBER(namcos22_state::namcos22s_czram_r)
{
int bank = nthword(m_czattr, 0xa/2) & 3;
return (m_banked_czram[bank][offset * 2] << 16) | m_banked_czram[bank][offset * 2 + 1];
}
void namcos22_state::recalc_czram()
{
for (int table = 0; table < 4; table++)
{
// as documented above, ss22 czram is 'just' a big compare table
// this is very slow when emulating, so let's recalculate it to a simpler lookup table
if (m_cz_was_written[table])
{
int small_val = 0x2000;
int small_offset = 0;
int large_val = 0;
int large_offset = 0;
int prev = 0x2000;
for (int i = 0; i < 0x100; i++)
{
int val = m_banked_czram[table][i];
// discard if larger than 1fff
if (val > 0x1fff) val = prev;
if (prev > 0x1fff)
{
prev = val;
continue;
}
int start = prev;
int end = val;
if (start > end)
{
start = val;
end = prev;
}
prev = val;
// fill range
for (int j = start; j < end; j++)
m_recalc_czram[table][j] = i;
// remember largest/smallest for later
if (val < small_val)
{
small_val = val;
small_offset = i;
}
if (val > large_val)
{
large_val = val;
large_offset = i;
}
}
// fill possible leftover ranges
for (int j = 0; j < small_val; j++)
m_recalc_czram[table][j] = small_offset;
for (int j = large_val; j < 0x2000; j++)
m_recalc_czram[table][j] = large_offset;
m_cz_was_written[table] = 0;
}
}
}
void namcos22_state::update_mixer() void namcos22_state::update_mixer()
{ {
int i; int i;
@ -2268,6 +2265,9 @@ void namcos22_state::update_mixer()
} }
/*********************************************************************************************/
UINT32 namcos22_state::screen_update_namcos22s(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) UINT32 namcos22_state::screen_update_namcos22s(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{ {
update_mixer(); update_mixer();