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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
#ifndef __ROPS_H__
#define __ROPS_H__
#include <boolean.h>
/*
Raster Operations macros
*/
// -------------
// RGB_565
// a.red = a.red - b.red
// a.blue = a.blue - b.blue
// a.green = a.green - b.green
/*
#define ROP_SUB(a, b) \
" bics " #b ", " #b ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #0b10000000000000000 \n"\
" sub " #a ", " #a ", " #b " \n"\
" tst " #a ", #0b00000000000100000 \n"\
" biceq " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" biceq " #a ", " #a ", #0b00000011111100000 \n"\
" tst " #a ", #0b10000000000000000 \n"\
" biceq " #a ", " #a ", #0b01111100000000000 \n"
*/
#define ROP_SUB(a, b) \
" bics " #b ", " #b ", #0b00000100000100000 \n"\
" beq 999f \n"\
" orr " #a ", " #a ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #(1 << 31) \n"\
" subs " #a ", " #a ", " #b " \n"\
" bicpl " #a ", " #a ", #0b01111100000000000 \n"\
" tst " #a ", #0b00000000000100000 \n"\
" biceq " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" biceq " #a ", " #a ", #0b00000011111100000 \n"\
"999:\n"
// -------------
// RGB_565
// if ZF set do ROP_SUB, else:
// a.red = (a.red - b.red) / 2
// a.blue = (a.blue - b.blue) / 2
// a.green = (a.green - b.green) / 2
/*
#define ROP_SUB1_2(a, b) \
" movne " #a ", " #a ", lsr #1 \n"\
" bicne " #a ", " #a ", #0b00000010000010000 \n"\
" movne " #b ", " #b ", lsr #1 \n"\
" bicne " #b ", " #b ", #0b00000010000010000 \n"\
\
" bic " #b ", " #b ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #0b10000000000000000 \n"\
" sub " #a ", " #a ", " #b " \n"\
" tst " #a ", #0b00000000000100000 \n"\
" biceq " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" biceq " #a ", " #a ", #0b00000011111100000 \n"\
" tst " #a ", #0b10000000000000000 \n"\
" biceq " #a ", " #a ", #0b01111100000000000 \n"
*/
#define ROP_SUB1_2(a, b) \
" movne " #a ", " #a ", lsr #1 \n"\
" bicne " #a ", " #a ", #0b00000010000010000 \n"\
" movne " #b ", " #b ", lsr #1 \n"\
" bicne " #b ", " #b ", #0b00000010000010000 \n"\
\
" bics " #b ", " #b ", #0b00000100000100000 \n"\
" beq 999f \n"\
" orr " #a ", " #a ", #0b00000100000100000 \n"\
" orr " #a ", " #a ", #(1 << 31) \n"\
" subs " #a ", " #a ", " #b " \n"\
" bicpl " #a ", " #a ", #0b01111100000000000 \n"\
" tst " #a ", #0b00000000000100000 \n"\
" biceq " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" biceq " #a ", " #a ", #0b00000011111100000 \n"\
"999:\n"
// -------------
// RGB_565
// a.red = a.red + b.red
// a.blue = a.blue + b.blue
// a.green = a.green + b.green
#define ROP_ADD(a, b) \
" bics " #b ", " #b ", #0b00000100000100000 \n"\
" beq 999f \n"\
" bic " #a ", " #a ", #0b00000100000100000 \n"\
" add " #a ", " #a ", " #b " \n"\
" tst " #a ", #0b00000000000100000 \n"\
" orrne " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" orrne " #a ", " #a ", #0b00000011111100000 \n"\
" tst " #a ", #0b10000000000000000 \n"\
" orrne " #a ", " #a ", #0b01111100000000000 \n"\
"999:\n"
// -------------
// RGB_565
// if ZF set do ROP_ADD, else:
// a.red = (a.red + b.red) / 2
// a.blue = (a.blue + b.blue) / 2
// a.green = (a.green + b.green) / 2
#define ROP_ADD1_2(a, b) \
" bic " #a ", " #a ", #0b00000100000100000 \n"\
" bicne " #a ", " #a ", #0b00001000001000000 \n"\
" bic " #b ", " #b ", #0b00000100000100000 \n"\
" bicne " #b ", " #b ", #0b00001000001000000 \n"\
" add " #a ", " #a ", " #b " \n"\
" movne " #a ", " #a ", lsr #1 \n"\
" tst " #a ", #0b00000000000100000 \n"\
" orrne " #a ", " #a ", #0b00000000000011111 \n"\
" tst " #a ", #0b00000100000000000 \n"\
" orrne " #a ", " #a ", #0b00000011111100000 \n"\
" tst " #a ", #0b10000000000000000 \n"\
" orrne " #a ", " #a ", #0b01111100000000000 \n"
typedef struct
{
unsigned char line;
unsigned char rop;
unsigned int value;
} ROPSTRUCT;
#define MAX_ROPS 0x10000
extern ROPSTRUCT rops[MAX_ROPS];
extern unsigned int ROpCount;
#define ROP_NOP 0
#define ROP_FIXEDCOLOUR 1
#define ROP_PALETTE 2
#define ROP_SCREEN_MODE 3
#define ROP_BRIGHTNESS 4
#define ROP_FORCE_BLANKING 5
#define ROP_TILE_ADDRESS 6
#define ROP_MOSAIC 7
#define ROP_BG_SCSIZE_SCBASE 8
#define ROP_BG_NAMEBASE 9
#define ROP_MODE7_ROTATION 10
#define ROP_BG_WINDOW_ENABLE 11
#define ROP_WINDOW1_LEFT 12
#define ROP_WINDOW1_RIGHT 13
#define ROP_WINDOW2_LEFT 14
#define ROP_WINDOW2_RIGHT 15
#define ROP_BG_WINDOW_LOGIC 16
#define ROP_OBJS_WINDOW_LOGIC 17
#define ROP_MAIN_SCREEN_DESIG 18
#define ROP_SUB_SCREEN_DESIG 19
#define ROP_MAIN_SCREEN_WMASK 20
#define ROP_SUB_SCREEN_WMASK 21
#define ROP_FIXEDCOL_OR_SCREEN 22
#define ROP_ADD_OR_SUB_COLOR 23
#define ADD_ROP(drop, dval) {rops[ROpCount].line = IPPU.CurrentLine; rops[ROpCount].rop = drop; rops[ROpCount].value = dval; ROpCount++;}
#define RESET_ROPS(from) \
{ \
unsigned int c;\
for (c = from; c < ROpCount; c++) doRaster(&rops[c]);\
ROpCount = 0;\
}
void doRaster(ROPSTRUCT* rop);
bool wouldRasterAlterStatus(ROPSTRUCT* rop);
#endif
|
