1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// license:BSD-3-Clause
// copyright-holders:R. Belmont, ElSemi
/* video/namcofl.cpp */
#include "emu.h"
#include "includes/namcofl.h"
/* nth_word32 is a general-purpose utility function, which allows us to
* read from 32-bit aligned memory as if it were an array of 16 bit words.
*/
#ifdef UNUSED_FUNCTION
static inline uint16_t
nth_word32( const uint32_t *source, int which )
{
source += which/2;
which ^= 1; /* i960 is little-endian */
if( which&1 )
{
return (*source)&0xffff;
}
else
{
return (*source)>>16;
}
}
#endif
/* nth_byte32 is a general-purpose utility function, which allows us to
* read from 32-bit aligned memory as if it were an array of bytes.
*/
#ifdef UNUSED_FUNCTION
static inline uint8_t
nth_byte32( const uint32_t *pSource, int which )
{
uint32_t data = pSource[which/4];
which ^= 3; /* i960 is little-endian */
switch( which&3 )
{
case 0: return data>>24;
case 1: return (data>>16)&0xff;
case 2: return (data>>8)&0xff;
default: return data&0xff;
}
} /* nth_byte32 */
#endif
void namcofl_state::TilemapCB(uint16_t code, int *tile, int *mask)
{
*tile = code;
*mask = code;
}
void namcofl_state::RozCB(uint16_t code, int *tile, int *mask, int which)
{
*tile = code;
*mask = code;
}
uint32_t namcofl_state::screen_update_namcofl(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int pri;
bitmap.fill(m_c116->black_pen(), cliprect );
for( pri=0; pri<16; pri++ )
{
m_c169roz->draw(screen, bitmap, cliprect, pri);
if ((pri & 1) == 0)
{
m_c123tmap->draw(screen, bitmap, cliprect, pri >> 1);
}
m_c355spr->draw(screen, bitmap, cliprect, pri );
}
return 0;
}
// NOTE : The two low bits toggle banks (code + 0x4000) for two
// groups of sprites. I am unsure how to differentiate those groups
// at this time however.
WRITE32_MEMBER(namcofl_state::namcofl_spritebank_w)
{
COMBINE_DATA(&m_sprbank);
}
int namcofl_state::FLobjcode2tile(int code)
{
if ((code & 0x2000) && (m_sprbank & 2)) { code += 0x4000; }
return code;
}
VIDEO_START_MEMBER(namcofl_state,namcofl)
{
}
|