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1 | /*\r |
2 | * assembly optimized versions of most funtions from draw.c\r |
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3 | * (C) notaz, 2006-2010,2017\r |
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4 | *\r |
5 | * This work is licensed under the terms of MAME license.\r |
6 | * See COPYING file in the top-level directory.\r |
7 | *\r |
8 | * this is highly specialized, be careful if changing related C code!\r |
9 | */\r |
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10 | \r |
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11 | #include "pico_int_o32.h"\r |
12 | \r |
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13 | .extern PicoOpt\r |
14 | .extern HighCol\r |
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15 | .extern HighSprZ\r |
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16 | .extern HighPreSpr\r |
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17 | .extern DrawLineDest\r |
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18 | .extern DrawStripInterlace\r |
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19 | .extern HighCacheS_ptr\r |
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20 | \r |
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21 | .equiv OVERRIDE_HIGHCOL, 1\r |
22 | \r |
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23 | .equ PDRAW_SPRITES_MOVED, (1<<0)\r |
24 | .equ PDRAW_WND_DIFF_PRIO, (1<<1)\r |
25 | .equ PDRAW_ACC_SPRITES, (1<<2)\r |
26 | .equ PDRAW_DIRTY_SPRITES, (1<<4)\r |
27 | .equ PDRAW_PLANE_HI_PRIO, (1<<6)\r |
28 | .equ PDRAW_SHHI_DONE, (1<<7)\r |
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29 | \r |
30 | @ helper\r |
31 | .macro TilePixel pat lsrr offs\r |
32 | .if !\lsrr\r |
33 | ands r4, \pat, r2\r |
34 | .else\r |
35 | ands r4, \pat, r2, lsr #\lsrr\r |
36 | .endif\r |
37 | orrne r4, r3, r4\r |
38 | strneb r4, [r1,#\offs]\r |
39 | .endm\r |
40 | \r |
41 | @ TileNorm (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
42 | .macro TileNorm pat\r |
43 | TilePixel \pat, 12, 0 @ #0x0000f000\r |
44 | TilePixel \pat, 8, 1 @ #0x00000f00\r |
45 | TilePixel \pat, 4, 2 @ #0x000000f0\r |
46 | TilePixel \pat, 0, 3 @ #0x0000000f\r |
47 | TilePixel \pat, 28, 4 @ #0xf0000000\r |
48 | TilePixel \pat, 24, 5 @ #0x0f000000\r |
49 | TilePixel \pat, 20, 6 @ #0x00f00000\r |
50 | TilePixel \pat, 16, 7 @ #0x000f0000\r |
51 | .endm\r |
52 | \r |
53 | @ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
54 | .macro TileFlip pat\r |
55 | TilePixel \pat, 16, 0 @ #0x000f0000\r |
56 | TilePixel \pat, 20, 1 @ #0x00f00000\r |
57 | TilePixel \pat, 24, 2 @ #0x0f000000\r |
58 | TilePixel \pat, 28, 3 @ #0xf0000000\r |
59 | TilePixel \pat, 0, 4 @ #0x0000000f\r |
60 | TilePixel \pat, 4, 5 @ #0x000000f0\r |
61 | TilePixel \pat, 8, 6 @ #0x00000f00\r |
62 | TilePixel \pat, 12, 7 @ #0x0000f000\r |
63 | .endm\r |
64 | \r |
65 | @ shadow/hilight mode\r |
66 | \r |
67 | @ this one is for hi priority layer\r |
68 | .macro TilePixelShHP lsrr offs\r |
69 | .if !\lsrr\r |
70 | ands r4, r12, r2\r |
71 | .else\r |
72 | ands r4, r12, r2, lsr #\lsrr\r |
73 | .endif\r |
74 | ldreqb r4, [r1,#\offs]\r |
75 | orrne r4, r3, r4\r |
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76 | andeq r4, r4, #0xbf\r |
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77 | strb r4, [r1,#\offs]\r |
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78 | .endm\r |
79 | \r |
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80 | @ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits\r |
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81 | .macro TileNormShHP\r |
82 | TilePixelShHP 12, 0 @ #0x0000f000\r |
83 | TilePixelShHP 8, 1 @ #0x00000f00\r |
84 | TilePixelShHP 4, 2 @ #0x000000f0\r |
85 | TilePixelShHP 0, 3 @ #0x0000000f\r |
86 | TilePixelShHP 28, 4 @ #0xf0000000\r |
87 | TilePixelShHP 24, 5 @ #0x0f000000\r |
88 | TilePixelShHP 20, 6 @ #0x00f00000\r |
89 | TilePixelShHP 16, 7 @ #0x000f0000\r |
90 | .endm\r |
91 | \r |
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92 | @ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
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93 | .macro TileFlipShHP\r |
94 | TilePixelShHP 16, 0 @ #0x000f0000\r |
95 | TilePixelShHP 20, 1 @ #0x00f00000\r |
96 | TilePixelShHP 24, 2 @ #0x0f000000\r |
97 | TilePixelShHP 28, 3 @ #0xf0000000\r |
98 | TilePixelShHP 0, 4 @ #0x0000000f\r |
99 | TilePixelShHP 4, 5 @ #0x000000f0\r |
100 | TilePixelShHP 8, 6 @ #0x00000f00\r |
101 | TilePixelShHP 12, 7 @ #0x0000f000\r |
102 | .endm\r |
103 | \r |
104 | \r |
105 | @ TileSingleSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx; r12: helper pattern 0xf\r |
106 | .macro TileSingleSh\r |
107 | tst r0, #1 @ not aligned?\r |
108 | mov r7, #0x00c000\r |
109 | orr r7, r7, #0xc0\r |
110 | ldrneb r4, [r1]\r |
111 | ldreqh r4, [r1]\r |
112 | orr r4, r4, r7\r |
113 | strneb r4, [r1], #1\r |
114 | streqh r4, [r1], #2\r |
115 | ldrh r4, [r1]\r |
116 | orr r4, r4, r7\r |
117 | strh r4, [r1], #2\r |
118 | ldrh r4, [r1]\r |
119 | orr r4, r4, r7\r |
120 | strh r4, [r1], #2\r |
121 | ldrh r4, [r1]\r |
122 | orr r4, r4, r7\r |
123 | strh r4, [r1], #2\r |
124 | ldrneb r4, [r1]\r |
125 | orr r4, r4, r7\r |
126 | strneb r4, [r1], #1\r |
127 | .endm\r |
128 | \r |
129 | @ TileSingleHi (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
130 | .macro TileSingleHi\r |
131 | tst r1, #1 @ not aligned?\r |
132 | mov r7, #0x008000\r |
133 | orr r7, r7, #0x80\r |
134 | ldrneb r4, [r1], #1\r |
135 | ldreqh r4, [r1], #2 @ 1ci\r |
136 | ldrh r12, [r1], #2\r |
137 | bic r4, r4, r7, lsr #1\r |
138 | orr r4, r4, r7\r |
139 | strneb r4, [r1, #-3]\r |
140 | streqh r4, [r1, #-4]\r |
141 | ldrh r4, [r1], #2\r |
142 | bic r12, r12, r7, lsr #1\r |
143 | orr r12, r12, r7\r |
144 | strh r12, [r1, #-4]\r |
145 | ldrh r12, [r1], #2\r |
146 | bic r4, r4, r7, lsr #1\r |
147 | orr r4, r4, r7\r |
148 | strh r4, [r1, #-4]\r |
149 | ldrneb r4, [r1]\r |
150 | bic r12, r12, r7, lsr #1\r |
151 | orr r12, r12, r7\r |
152 | strh r12, [r1, #-2]\r |
153 | bicne r4, r4, r7, lsr #1\r |
154 | orrne r4, r4, r7\r |
155 | strneb r4, [r1], #1\r |
156 | mov r12, #0xf\r |
157 | .endm\r |
158 | \r |
159 | .macro TileDoShGenPixel shift ofs\r |
160 | .if \shift\r |
161 | ands r4, r12, r2, lsr #\shift\r |
162 | .else\r |
163 | ands r4, r12, r2\r |
164 | .endif\r |
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165 | beq 0f\r |
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166 | cmp r4, #0xe\r |
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167 | ldrgeb r7, [r1,#\ofs]\r |
168 | orrlt r7, r3, r4 @ normal\r |
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169 | \r |
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170 | bicge r7, r7, #0xc0\r |
171 | orrge r7, r7, r4, lsl #6\r |
172 | strb r7, [r1,#\ofs]\r |
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173 | 0:\r |
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174 | .endm\r |
175 | \r |
176 | @ TileFlipSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
177 | .macro TileFlipSh\r |
178 | TileDoShGenPixel 16, 0 @ #0x000f0000\r |
179 | TileDoShGenPixel 20, 1 @ #0x00f00000\r |
180 | TileDoShGenPixel 24, 2 @ #0x0f000000\r |
181 | TileDoShGenPixel 28, 3 @ #0xf0000000\r |
182 | TileDoShGenPixel 0, 4 @ #0x0000000f\r |
183 | TileDoShGenPixel 4, 5 @ #0x000000f0\r |
184 | TileDoShGenPixel 8, 6 @ #0x00000f00\r |
185 | TileDoShGenPixel 12, 7 @ #0x0000f000\r |
186 | .endm\r |
187 | \r |
188 | @ TileNormSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
189 | .macro TileNormSh\r |
190 | TileDoShGenPixel 12, 0 @ #0x0000f000\r |
191 | TileDoShGenPixel 8, 1 @ #0x00000f00\r |
192 | TileDoShGenPixel 4, 2 @ #0x000000f0\r |
193 | TileDoShGenPixel 0, 3 @ #0x0000000f\r |
194 | TileDoShGenPixel 28, 4 @ #0xf0000000\r |
195 | TileDoShGenPixel 24, 5 @ #0x0f000000\r |
196 | TileDoShGenPixel 20, 6 @ #0x00f00000\r |
197 | TileDoShGenPixel 16, 7 @ #0x000f0000\r |
198 | .endm\r |
199 | \r |
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200 | .macro TileDoShGenPixel_markop shift ofs\r |
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201 | .if \shift\r |
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202 | ands r4, r12, r2, lsr #\shift\r |
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203 | .else\r |
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204 | ands r4, r12, r2\r |
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205 | .endif\r |
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206 | beq 0f\r |
207 | cmp r4, #0xe\r |
208 | ldrgeb r4, [r1,#\ofs]\r |
209 | orrlt r4, r3, r4\r |
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210 | orrge r4, r4, #0x80\r |
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211 | strb r4, [r1,#\ofs]\r |
212 | 0:\r |
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213 | .endm\r |
214 | \r |
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215 | .macro TileFlipSh_markop\r |
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216 | TileDoShGenPixel_markop 16, 0 @ #0x000f0000\r |
217 | TileDoShGenPixel_markop 20, 1 @ #0x00f00000\r |
218 | TileDoShGenPixel_markop 24, 2 @ #0x0f000000\r |
219 | TileDoShGenPixel_markop 28, 3 @ #0xf0000000\r |
220 | TileDoShGenPixel_markop 0, 4 @ #0x0000000f\r |
221 | TileDoShGenPixel_markop 4, 5 @ #0x000000f0\r |
222 | TileDoShGenPixel_markop 8, 6 @ #0x00000f00\r |
223 | TileDoShGenPixel_markop 12, 7 @ #0x0000f000\r |
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224 | .endm\r |
225 | \r |
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226 | .macro TileNormSh_markop\r |
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227 | TileDoShGenPixel_markop 12, 0 @ #0x0000f000\r |
228 | TileDoShGenPixel_markop 8, 1 @ #0x00000f00\r |
229 | TileDoShGenPixel_markop 4, 2 @ #0x000000f0\r |
230 | TileDoShGenPixel_markop 0, 3 @ #0x0000000f\r |
231 | TileDoShGenPixel_markop 28, 4 @ #0xf0000000\r |
232 | TileDoShGenPixel_markop 24, 5 @ #0x0f000000\r |
233 | TileDoShGenPixel_markop 20, 6 @ #0x00f00000\r |
234 | TileDoShGenPixel_markop 16, 7 @ #0x000f0000\r |
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235 | .endm\r |
236 | \r |
237 | .macro TileDoShGenPixel_onlyop_lp shift ofs\r |
238 | .if \shift\r |
239 | ands r7, r12, r2, lsr #\shift\r |
240 | .else\r |
241 | ands r7, r12, r2\r |
242 | .endif\r |
243 | ldrneb r4, [r1,#\ofs]\r |
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244 | cmp r7, #0xe\r |
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245 | blt 0f\r |
246 | \r |
247 | tst r4, #0xc0\r |
248 | bicne r4, r4, #0xc0\r |
249 | orrne r4, r4, r7, lsl #6\r |
250 | strneb r4, [r1,#\ofs]\r |
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251 | 0:\r |
252 | .endm\r |
253 | \r |
254 | .macro TileFlipSh_onlyop_lp\r |
255 | TileDoShGenPixel_onlyop_lp 16, 0 @ #0x000f0000\r |
256 | TileDoShGenPixel_onlyop_lp 20, 1 @ #0x00f00000\r |
257 | TileDoShGenPixel_onlyop_lp 24, 2 @ #0x0f000000\r |
258 | TileDoShGenPixel_onlyop_lp 28, 3 @ #0xf0000000\r |
259 | TileDoShGenPixel_onlyop_lp 0, 4 @ #0x0000000f\r |
260 | TileDoShGenPixel_onlyop_lp 4, 5 @ #0x000000f0\r |
261 | TileDoShGenPixel_onlyop_lp 8, 6 @ #0x00000f00\r |
262 | TileDoShGenPixel_onlyop_lp 12, 7 @ #0x0000f000\r |
263 | .endm\r |
264 | \r |
265 | .macro TileNormSh_onlyop_lp\r |
266 | TileDoShGenPixel_onlyop_lp 12, 0 @ #0x0000f000\r |
267 | TileDoShGenPixel_onlyop_lp 8, 1 @ #0x00000f00\r |
268 | TileDoShGenPixel_onlyop_lp 4, 2 @ #0x000000f0\r |
269 | TileDoShGenPixel_onlyop_lp 0, 3 @ #0x0000000f\r |
270 | TileDoShGenPixel_onlyop_lp 28, 4 @ #0xf0000000\r |
271 | TileDoShGenPixel_onlyop_lp 24, 5 @ #0x0f000000\r |
272 | TileDoShGenPixel_onlyop_lp 20, 6 @ #0x00f00000\r |
273 | TileDoShGenPixel_onlyop_lp 16, 7 @ #0x000f0000\r |
274 | .endm\r |
275 | \r |
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276 | \r |
277 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
278 | \r |
279 | @ struct TileStrip\r |
280 | @ {\r |
281 | @ int nametab; // 0x00\r |
282 | @ int line; // 0x04\r |
283 | @ int hscroll; // 0x08\r |
284 | @ int xmask; // 0x0C\r |
285 | @ int *hc; // 0x10 (pointer to cache buffer)\r |
286 | @ int cells; // 0x14\r |
287 | @ };\r |
288 | \r |
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289 | @ void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,\r |
290 | @ struct PicoEState *est)\r |
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291 | \r |
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292 | .global DrawLayer\r |
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293 | \r |
294 | DrawLayer:\r |
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295 | ldr r12, [sp] @ est\r |
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296 | stmfd sp!, {r4-r11,lr}\r |
297 | \r |
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298 | ldr r11, [r12, #OFS_Pico_video]\r |
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299 | mov r8, #1\r |
300 | \r |
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301 | ldrb r7, [r11, #16] @ ??vv??hh\r |
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302 | \r |
303 | mov r6, r1 @ hcache\r |
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304 | orr r9, r3, r0, lsl #30\r |
305 | orr r9, r9, r2, lsl #8 @ r9=sh[31]|cellskip[15:8]|maxcells[7:0] (tmp)\r |
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306 | \r |
307 | mov r1, r7, lsl #4\r |
308 | orr r1, r1, #0x00ff\r |
309 | \r |
310 | and r10, r7, #3\r |
311 | cmp r10, #1\r |
312 | biclt r1, r1, #0xfc00\r |
313 | biceq r1, r1, #0xfe00\r |
314 | bicgt r1, r1, #0xff00 @ r1=ymask=(height<<8)|0xff; ...; // Y Mask in pixels\r |
315 | \r |
316 | add r10, r10, #5\r |
317 | cmp r10, #7\r |
318 | subge r10, r10, #1 @ r10=shift[width] (5,6,6,7)\r |
319 | \r |
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320 | ldr r2, [r12, #OFS_DrawScanline]\r |
321 | ldr lr, [r12, #OFS_Pico_vram]\r |
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322 | \r |
323 | @ Find name table:\r |
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324 | ands r0, r0, #1\r |
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325 | ldreqb r12, [r11, #2]\r |
326 | ldrneb r12, [r11, #4]\r |
327 | \r |
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328 | @ calculate xmask:\r |
329 | mov r5, r8, lsl r10\r |
330 | sub r5, r5, #1 @ r5=xmask\r |
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331 | \r |
332 | moveq r12, r12, lsl #10\r |
333 | movne r12, r12, lsl #13\r |
334 | and r12, r12, #(7<<13) @ r12=(ts->nametab<<1) (halfword compliant)\r |
335 | \r |
336 | ldrh r8, [r11, #12]\r |
337 | ldrb r7, [r11, #11]\r |
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338 | \r |
339 | mov r4, r8, lsr #8 @ pvid->reg[13]\r |
340 | mov r4, r4, lsl #10 @ htab=pvid->reg[13]<<9; (halfwords)\r |
341 | tst r7, #2\r |
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342 | addne r4, r4, r2, lsl #2 @ htab+=DrawScanline<<1; // Offset by line\r |
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343 | tst r7, #1\r |
344 | biceq r4, r4, #0x1f @ htab&=~0xf; // Offset by tile\r |
345 | add r4, r4, r0, lsl #1 @ htab+=plane\r |
346 | bic r4, r4, #0x00ff0000 @ just in case\r |
347 | ldrh r3, [lr, r4] @ r3=hscroll\r |
348 | \r |
349 | tst r7, #4\r |
350 | bne .DrawStrip_vsscroll\r |
351 | \r |
352 | @ Get vertical scroll value:\r |
353 | add r7, lr, #0x012000\r |
354 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
355 | ldr r7, [r7]\r |
356 | \r |
357 | tst r8, #2\r |
358 | tstne r8, #4\r |
359 | bne .DrawStrip_interlace\r |
360 | \r |
361 | tst r0, r0\r |
362 | movne r7, r7, lsr #16\r |
363 | \r |
364 | @ Find the line in the name table\r |
365 | add r2, r2, r7\r |
366 | and r2, r2, r1\r |
367 | mov r4, r2, lsr #3\r |
368 | add r10, r10, #1 @ shift[width]++\r |
369 | add r12, r12, r4, lsl r10 @ nametab+=(ts.line>>3)<<shift[width];\r |
370 | \r |
371 | @ ldmia r0, {r1,r2,r3,r5,r6,r9} @ r2=line, r3=ts->hscroll, r5=ts->xmask, r6=ts->hc, r9=ts->cells\r |
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372 | \r |
373 | and r10,r2, #7\r |
374 | mov r10,r10, lsl #1 @ r10=ty=(ts->line&7)<<1;\r |
375 | orr r10,r10, r9, lsl #24\r |
376 | \r |
377 | rsb r8, r3, #0\r |
378 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
379 | \r |
380 | sub r1, r3, #1\r |
381 | and r1, r1, #7\r |
382 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
383 | \r |
384 | tst r9, #1<<31\r |
385 | mov r3, #0\r |
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386 | orrne r10,r10, #1<<23 @ r10=(cells<<24|sh<<23|hi_not_empty<<22|had_output<<21|ty)\r |
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387 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
388 | \r |
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389 | cmp r7, #8\r |
390 | addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll\r |
391 | \r |
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392 | and r9, r9, #0xff00\r |
393 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
394 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
395 | sub r10,r10,r9, lsl #16 @ cells-=cellskip\r |
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396 | \r |
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397 | @ cache some stuff to avoid mem access\r |
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398 | .if OVERRIDE_HIGHCOL\r |
399 | ldr r11,=HighCol\r |
400 | mov r0, #0xf\r |
401 | ldr r11,[r11]\r |
402 | .else\r |
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403 | ldr r11,=HighCol\r |
404 | mov r0, #0xf\r |
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405 | .endif\r |
406 | \r |
407 | mvn r9, #0 @ r9=prevcode=-1\r |
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408 | add r1, r11, r7 @ r1=pdest\r |
409 | \r |
410 | \r |
411 | @ r4 & r7 are scratch in this loop\r |
412 | .dsloop_subr1:\r |
413 | sub r1, r1, #8\r |
414 | .dsloop: @ 40-41 times\r |
415 | subs r10,r10, #0x01000000\r |
416 | bmi .dsloop_exit\r |
417 | \r |
418 | .dsloop_enter:\r |
419 | and r7, r5, r8\r |
420 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
421 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
422 | \r |
423 | add r1, r1, #8\r |
424 | add r8, r8, #1\r |
425 | \r |
426 | tst r7, #0x8000\r |
427 | bne .DrawStrip_hiprio\r |
428 | \r |
429 | cmp r7, r9\r |
430 | beq .DrawStrip_samecode @ we know stuff about this tile already\r |
431 | \r |
432 | mov r9, r7 @ remember code\r |
740da8c6 |
433 | orr r10, r10, #1<<21 @ seen non hi-prio tile\r |
cc68a136 |
434 | \r |
435 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
436 | mov r2, r2, lsl #1\r |
437 | add r2, r2, r10, lsl #17\r |
438 | mov r2, r2, lsr #17\r |
439 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
440 | \r |
441 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
442 | \r |
443 | bic r7, r3, #0x3f\r |
444 | and r3, r9, #0x6000\r |
445 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
446 | \r |
447 | .DrawStrip_samecode:\r |
448 | tst r2, r2\r |
449 | beq .dsloop @ tileline blank\r |
450 | \r |
451 | cmp r2, r2, ror #4\r |
452 | beq .DrawStrip_SingleColor @ tileline singlecolor \r |
453 | \r |
454 | tst r9, #0x0800\r |
7a7c6476 |
455 | bne .DrawStrip_TileFlip\r |
cc68a136 |
456 | \r |
457 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
458 | .DrawStrip_TileNorm:\r |
459 | TileNorm r0\r |
460 | b .dsloop\r |
461 | \r |
7a7c6476 |
462 | .DrawStrip_TileFlip:\r |
463 | TileFlip r0\r |
464 | b .dsloop\r |
465 | \r |
cc68a136 |
466 | .DrawStrip_SingleColor:\r |
467 | and r4, r2, #0xf\r |
468 | orr r4, r3, r4\r |
469 | orr r4, r4, r4, lsl #8\r |
470 | tst r1, #1 @ not aligned?\r |
471 | strneb r4, [r1], #1\r |
472 | streqh r4, [r1], #2\r |
473 | strh r4, [r1], #2\r |
474 | strh r4, [r1], #2\r |
475 | strh r4, [r1], #2\r |
476 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
477 | b .dsloop_subr1\r |
478 | \r |
cc68a136 |
479 | .DrawStrip_hiprio_maybempt:\r |
480 | cmp r7, r9\r |
481 | beq .dsloop @ must've been empty, otherwise we wouldn't get here\r |
482 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
483 | mov r2, r2, lsl #1\r |
484 | add r2, r2, r10, lsl #17\r |
485 | mov r2, r2, lsr #17\r |
486 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
487 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
488 | mov r9, r7 @ remember code\r |
489 | tst r2, r2\r |
740da8c6 |
490 | beq .dsloop\r |
491 | orr r10, r10, #1<<22\r |
492 | \r |
493 | .DrawStrip_hiprio:\r |
494 | tst r10, #0x00c00000\r |
495 | beq .DrawStrip_hiprio_maybempt\r |
496 | sub r0, r1, r11\r |
497 | orr r7, r7, r0, lsl #16\r |
498 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
499 | tst r7, #0x1000\r |
500 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
501 | str r7, [r6], #4 @ cache hi priority tile\r |
502 | mov r0, #0xf\r |
cc68a136 |
503 | b .dsloop\r |
504 | \r |
505 | .dsloop_exit:\r |
740da8c6 |
506 | tst r10, #1<<21 @ seen non hi-prio tile\r |
d01fa204 |
507 | ldr r1, [sp, #9*4] @ est\r |
cc68a136 |
508 | mov r0, #0\r |
d01fa204 |
509 | ldreq r2, [r1, #OFS_rendstatus]\r |
cc68a136 |
510 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
511 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
d01fa204 |
512 | streq r2, [r1, #OFS_rendstatus]\r |
cc68a136 |
513 | \r |
514 | ldmfd sp!, {r4-r11,lr}\r |
515 | bx lr\r |
516 | \r |
6d7acf9e |
517 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
518 | \r |
519 | .DrawStrip_vsscroll:\r |
6d7acf9e |
520 | rsb r8, r3, #0\r |
521 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
7b802576 |
522 | bic r8, r8, #0x3fc00000\r |
523 | orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r |
cc68a136 |
524 | \r |
d01fa204 |
525 | ldr r11, [sp, #9*4] @ est\r |
6d7acf9e |
526 | orr r5, r1, r10, lsl #24\r |
d01fa204 |
527 | ldr r4, [r11, #OFS_DrawScanline]\r |
6d7acf9e |
528 | sub r1, r3, #1\r |
529 | orr r5, r5, r4, lsl #16 @ r5=(shift_width[31:24]|scanline[23:16]|ymask[15:0])\r |
530 | and r1, r1, #7\r |
531 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
cc68a136 |
532 | \r |
6d7acf9e |
533 | mov r10,r9, lsl #16\r |
83c093a4 |
534 | tst r0, #1\r |
6d7acf9e |
535 | orrne r10,r10, #0x8000\r |
536 | tst r9, #1<<31\r |
537 | mov r3, #0\r |
538 | orr r10,r10, #0xff000000 @ will be adjusted on entering loop\r |
83c093a4 |
539 | orrne r10,r10, #1<<23 @ r10=(cell[31:24]|sh[23]|hi_not_empty[22]|cells_max[21:16]|plane[15]|ty[14:0])\r |
6d7acf9e |
540 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
cc68a136 |
541 | \r |
83c093a4 |
542 | cmp r7, #8\r |
543 | subne r10,r10, #0x01000000 @ have hscroll, start with negative cell\r |
544 | \r |
545 | and r9, r9, #0xff00\r |
546 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
547 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
548 | add r10,r10,r9, lsl #16 @ cell+=cellskip\r |
cc68a136 |
549 | \r |
6d7acf9e |
550 | @ cache some stuff to avoid mem access\r |
ea8c405f |
551 | .if OVERRIDE_HIGHCOL\r |
6d7acf9e |
552 | ldr r11,=HighCol\r |
553 | mov r0, #0xf\r |
ea8c405f |
554 | ldr r11,[r11]\r |
555 | .else\r |
556 | ldr r11,=HighCol\r |
557 | mov r0, #0xf\r |
558 | .endif\r |
6d7acf9e |
559 | \r |
ea8c405f |
560 | mvn r9, #0 @ r9=prevcode=-1\r |
561 | add r1, r11, r7 @ r1=pdest\r |
6d7acf9e |
562 | \r |
563 | @ r4 & r7 are scratch in this loop\r |
564 | .dsloop_vs_subr1:\r |
565 | sub r1, r1, #8\r |
566 | .dsloop_vs: @ 40-41 times\r |
567 | add r10,r10, #0x01000000\r |
568 | and r4, r10, #0x003f0000\r |
569 | cmp r4, r10, asr #8\r |
740da8c6 |
570 | ble .dsloop_vs_exit\r |
6d7acf9e |
571 | \r |
572 | @ calc offset and read tileline code to r7, also calc ty\r |
573 | add r7, lr, #0x012000\r |
574 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
575 | add r7, r7, r10,asr #23 @ vsram + ((cell&~1)<<1)\r |
576 | bic r7, r7, #3\r |
577 | tst r10,#0x8000 @ plane1?\r |
578 | addne r7, r7, #2\r |
579 | ldrh r7, [r7] @ r7=vscroll\r |
580 | \r |
581 | bic r10,r10,#0xff @ clear old ty\r |
7b802576 |
582 | and r4, r5, #0xff0000 @ scanline\r |
583 | add r4, r4, r7, lsl #16 @ ... += vscroll\r |
584 | and r4, r4, r5, lsl #16 @ ... &= ymask\r |
6d7acf9e |
585 | and r7, r4, #0x70000\r |
586 | orr r10,r10,r7, lsr #15 @ new ty\r |
587 | \r |
588 | mov r4, r4, lsr #19\r |
589 | mov r7, r5, lsr #24\r |
590 | mov r4, r4, lsl r7 @ nametabadd\r |
591 | \r |
592 | and r7, r8, r8, lsr #25\r |
593 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
594 | add r7, r7, r4, lsl #1\r |
595 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
596 | \r |
597 | add r1, r1, #8\r |
598 | add r8, r8, #1\r |
599 | \r |
600 | tst r7, #0x8000\r |
601 | bne .DrawStrip_vs_hiprio\r |
602 | \r |
603 | cmp r7, r9\r |
604 | beq .DrawStrip_vs_samecode @ we know stuff about this tile already\r |
605 | \r |
606 | mov r9, r7 @ remember code\r |
7b802576 |
607 | orr r8, r8, #(1<<24)@ seen non hi-prio tile\r |
6d7acf9e |
608 | \r |
609 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
610 | mov r2, r2, lsl #1\r |
611 | add r2, r2, r10, lsl #17\r |
612 | mov r2, r2, lsr #17\r |
613 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
614 | \r |
615 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
616 | \r |
617 | bic r7, r3, #0x3f\r |
618 | and r3, r9, #0x6000\r |
619 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
620 | \r |
621 | .DrawStrip_vs_samecode:\r |
622 | tst r2, r2\r |
623 | beq .dsloop_vs @ tileline blank\r |
624 | \r |
625 | cmp r2, r2, ror #4\r |
626 | beq .DrawStrip_vs_SingleColor @ tileline singlecolor \r |
627 | \r |
628 | tst r9, #0x0800\r |
7a7c6476 |
629 | bne .DrawStrip_vs_TileFlip\r |
6d7acf9e |
630 | \r |
631 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
6d7acf9e |
632 | .DrawStrip_vs_TileNorm:\r |
633 | TileNorm r0\r |
634 | b .dsloop_vs\r |
635 | \r |
7a7c6476 |
636 | .DrawStrip_vs_TileFlip:\r |
637 | TileFlip r0\r |
638 | b .dsloop_vs\r |
639 | \r |
6d7acf9e |
640 | .DrawStrip_vs_SingleColor:\r |
641 | and r4, r2, #0xf\r |
642 | orr r4, r3, r4\r |
643 | orr r4, r4, r4, lsl #8\r |
644 | tst r1, #1 @ not aligned?\r |
645 | strneb r4, [r1], #1\r |
646 | streqh r4, [r1], #2\r |
647 | strh r4, [r1], #2\r |
648 | strh r4, [r1], #2\r |
649 | strh r4, [r1], #2\r |
650 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
651 | b .dsloop_vs_subr1\r |
652 | \r |
653 | .DrawStrip_vs_hiprio:\r |
654 | tst r10, #0x00c00000\r |
655 | beq .DrawStrip_vs_hiprio_maybempt\r |
656 | sub r0, r1, r11\r |
657 | orr r7, r7, r0, lsl #16\r |
658 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
659 | tst r7, #0x1000\r |
660 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
661 | str r7, [r6], #4 @ cache hi priority tile\r |
662 | mov r0, #0xf\r |
663 | b .dsloop_vs\r |
664 | \r |
665 | .DrawStrip_vs_hiprio_maybempt:\r |
666 | cmp r7, r9\r |
667 | beq .dsloop_vs @ must've been empty, otherwise we wouldn't get here\r |
668 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
669 | mov r2, r2, lsl #1\r |
670 | add r2, r2, r10, lsl #17\r |
671 | mov r2, r2, lsr #17\r |
672 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
673 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
674 | mov r9, r7 @ remember code\r |
675 | tst r2, r2\r |
676 | orrne r10, r10, #1<<22\r |
677 | bne .DrawStrip_vs_hiprio\r |
678 | b .dsloop_vs\r |
679 | \r |
740da8c6 |
680 | .dsloop_vs_exit:\r |
7b802576 |
681 | tst r8, #(1<<24) @ seen non hi-prio tile\r |
d01fa204 |
682 | ldr r1, [sp, #9*4] @ est\r |
740da8c6 |
683 | mov r0, #0\r |
d01fa204 |
684 | ldreq r2, [r1, #OFS_rendstatus]\r |
740da8c6 |
685 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
686 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
d01fa204 |
687 | streq r2, [r1, #OFS_rendstatus]\r |
740da8c6 |
688 | \r |
689 | ldmfd sp!, {r4-r11,lr}\r |
690 | bx lr\r |
691 | \r |
6d7acf9e |
692 | \r |
693 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
694 | \r |
695 | @ interlace mode 2? Sonic 2?\r |
696 | .DrawStrip_interlace:\r |
697 | tst r0, r0\r |
698 | moveq r7, r7, lsl #21\r |
699 | movne r7, r7, lsl #5\r |
700 | \r |
701 | @ Find the line in the name table\r |
b6d7ac70 |
702 | add r2, r7, r2, lsl #22 @ r2=(vscroll+(DrawScanline<<1))<<21 (11 bits);\r |
cc68a136 |
703 | orr r1, r1, #0x80000000\r |
704 | and r2, r2, r1, ror #10 @ &((ymask<<1)|1)<<21;\r |
705 | mov r2, r2, lsr #21\r |
706 | mov r4, r2, lsr #4\r |
707 | mov r12, r12, lsr #1 @ halfwords\r |
708 | add r0, r12, r4, lsl r10 @ nametab+=(ts.line>>4)<<shift[width];\r |
709 | and r9, r9, #0xff\r |
710 | \r |
711 | sub sp, sp, #6*4\r |
712 | stmia sp, {r0,r2,r3,r5,r6,r9}\r |
713 | \r |
714 | mov r0, sp\r |
715 | bl DrawStripInterlace @ struct TileStrip *ts\r |
716 | \r |
717 | add sp, sp, #6*4\r |
718 | ldmfd sp!, {r4-r11,lr}\r |
719 | bx lr\r |
720 | \r |
721 | .pool\r |
722 | \r |
723 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
724 | \r |
725 | \r |
726 | .global BackFill @ int reg7, int sh\r |
727 | \r |
728 | BackFill:\r |
729 | stmfd sp!, {r4-r9,lr}\r |
730 | \r |
ea8c405f |
731 | .if OVERRIDE_HIGHCOL\r |
732 | ldr lr, =HighCol\r |
733 | mov r0, r0, lsl #26\r |
734 | ldr lr, [lr]\r |
735 | mov r0, r0, lsr #26\r |
736 | add lr, lr, #8\r |
737 | .else\r |
cc68a136 |
738 | ldr lr, =(HighCol+8)\r |
cc68a136 |
739 | mov r0, r0, lsl #26\r |
740 | mov r0, r0, lsr #26\r |
ea8c405f |
741 | .endif\r |
742 | \r |
cc68a136 |
743 | orr r0, r0, r1, lsl #6\r |
744 | orr r0, r0, r0, lsl #8\r |
745 | orr r0, r0, r0, lsl #16\r |
746 | \r |
747 | mov r1, r0\r |
748 | mov r2, r0\r |
749 | mov r3, r0\r |
750 | mov r4, r0\r |
751 | mov r5, r0\r |
752 | mov r6, r0\r |
753 | mov r7, r0\r |
754 | \r |
755 | @ go go go!\r |
756 | stmia lr!, {r0-r7} @ 10*8*4\r |
757 | stmia lr!, {r0-r7}\r |
758 | stmia lr!, {r0-r7}\r |
759 | stmia lr!, {r0-r7}\r |
760 | stmia lr!, {r0-r7}\r |
761 | stmia lr!, {r0-r7}\r |
762 | stmia lr!, {r0-r7}\r |
763 | stmia lr!, {r0-r7}\r |
764 | stmia lr!, {r0-r7}\r |
765 | stmia lr!, {r0-r7}\r |
766 | \r |
767 | ldmfd sp!, {r4-r9,r12}\r |
768 | bx r12\r |
769 | \r |
770 | \r |
771 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
772 | \r |
d01fa204 |
773 | @ void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)\r |
cc68a136 |
774 | \r |
d01fa204 |
775 | .global DrawTilesFromCache\r |
cc68a136 |
776 | \r |
777 | DrawTilesFromCache:\r |
d01fa204 |
778 | stmfd sp!, {r4-r9,r11,lr}\r |
cc68a136 |
779 | \r |
cc68a136 |
780 | @ cache some stuff to avoid mem access\r |
ea8c405f |
781 | .if OVERRIDE_HIGHCOL\r |
cc68a136 |
782 | ldr r11,=HighCol\r |
cc68a136 |
783 | mov r12,#0xf\r |
ea8c405f |
784 | ldr r11,[r11]\r |
785 | .else\r |
786 | ldr r11,=HighCol\r |
787 | mov r12,#0xf\r |
788 | .endif\r |
d01fa204 |
789 | ldr lr, [r3, #OFS_Pico_vram]\r |
790 | mov r9, r3 @ est\r |
cc68a136 |
791 | \r |
740da8c6 |
792 | mvn r5, #0 @ r5=prevcode=-1\r |
7a7c6476 |
793 | ands r8, r1, #1\r |
794 | orr r8, r8, r2, lsl #1\r |
740da8c6 |
795 | bne .dtfc_check_rendflags\r |
796 | \r |
cc68a136 |
797 | @ scratch: r4, r7\r |
798 | .dtfc_loop:\r |
799 | ldr r6, [r0], #4 @ read code\r |
800 | movs r1, r6, lsr #16 @ r1=dx;\r |
d01fa204 |
801 | ldmeqfd sp!, {r4-r9,r11,pc} @ dx is never zero, this must be a terminator, return\r |
7a7c6476 |
802 | bic r4, r1, #0xfe00\r |
803 | add r1, r11, r4 @ r1=pdest\r |
cc68a136 |
804 | \r |
805 | mov r7, r6, lsl #16\r |
806 | cmp r5, r7, lsr #16\r |
807 | beq .dtfc_samecode @ if (code==prevcode)\r |
808 | \r |
809 | mov r5, r7, lsr #16\r |
810 | \r |
811 | mov r2, r5, lsl #21\r |
812 | mov r2, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4;\r |
813 | add r2, r2, r6, lsr #25 @ addr+=ty\r |
814 | \r |
815 | and r3, r5, #0x6000\r |
816 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
817 | \r |
818 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
819 | \r |
820 | .dtfc_samecode:\r |
7a7c6476 |
821 | rsbs r4, r4, r8, lsr #1\r |
822 | bmi .dtfc_cut_tile\r |
823 | \r |
824 | tst r8, #1\r |
cc68a136 |
825 | bne .dtfc_shadow\r |
826 | \r |
827 | tst r2, r2\r |
828 | beq .dtfc_loop\r |
829 | \r |
830 | cmp r2, r2, ror #4\r |
831 | beq .dtfc_SingleColor @ tileline singlecolor \r |
832 | \r |
833 | tst r5, #0x0800\r |
7a7c6476 |
834 | bne .dtfc_TileFlip\r |
cc68a136 |
835 | \r |
836 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
837 | .dtfc_TileNorm:\r |
838 | TileNorm r12\r |
839 | b .dtfc_loop\r |
840 | \r |
7a7c6476 |
841 | .dtfc_TileFlip:\r |
842 | TileFlip r12\r |
843 | b .dtfc_loop\r |
844 | \r |
cc68a136 |
845 | .dtfc_SingleColor:\r |
846 | and r4, r2, #0xf\r |
847 | orr r4, r3, r4\r |
848 | orr r4, r4, r4, lsl #8\r |
849 | tst r1, #1 @ not aligned?\r |
850 | strneb r4, [r1], #1\r |
851 | streqh r4, [r1], #2\r |
852 | strh r4, [r1], #2\r |
853 | strh r4, [r1], #2\r |
854 | strh r4, [r1], #2\r |
855 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
856 | b .dtfc_loop\r |
857 | \r |
858 | .dtfc_shadow:\r |
859 | tst r2, r2\r |
860 | beq .dtfc_shadow_blank\r |
861 | \r |
862 | cmp r2, r2, ror #4\r |
863 | beq .dtfc_SingleColor @ tileline singlecolor \r |
864 | \r |
865 | tst r5, #0x0800\r |
7a7c6476 |
866 | bne .dtfc_TileFlipShHP\r |
cc68a136 |
867 | \r |
868 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
869 | .dtfc_TileNormShHP:\r |
870 | TileNormShHP\r |
871 | b .dtfc_loop\r |
872 | \r |
7a7c6476 |
873 | .dtfc_TileFlipShHP:\r |
874 | TileFlipShHP\r |
875 | b .dtfc_loop\r |
876 | \r |
cc68a136 |
877 | .dtfc_shadow_blank:\r |
07abbab1 |
878 | tst r1, #1\r |
879 | ldrneb r4, [r1]\r |
bfa12428 |
880 | mov r6, #0xbf\r |
881 | and r4, r4, #0xbf\r |
07abbab1 |
882 | strneb r4, [r1], #1\r |
883 | ldrh r4, [r1]\r |
884 | orr r6, r6, r6, lsl #8\r |
885 | and r4, r4, r6\r |
886 | strh r4, [r1], #2\r |
887 | ldrh r4, [r1]\r |
888 | and r4, r4, r6\r |
889 | strh r4, [r1], #2\r |
890 | ldrh r4, [r1]\r |
891 | and r4, r4, r6\r |
892 | strh r4, [r1], #2\r |
893 | ldrh r4, [r1]\r |
894 | and r4, r4, r6\r |
895 | streqh r4, [r1]\r |
896 | strneb r4, [r1]\r |
cc68a136 |
897 | b .dtfc_loop\r |
898 | \r |
7a7c6476 |
899 | .dtfc_cut_tile:\r |
900 | add r4, r4, #7 @ 0-6\r |
901 | mov r4, r4, lsl #2\r |
902 | mov r12,#0xf<<28\r |
903 | mov r12,r12,asr r4\r |
904 | mov r2, r2, ror #16\r |
905 | tst r5, #0x0800 @ flipped?\r |
906 | mvnne r12,r12\r |
907 | and r2, r2, r12\r |
908 | mov r2, r2, ror #16\r |
909 | mov r12,#0xf\r |
910 | tst r8, #1\r |
911 | bne .dtfc_shadow\r |
912 | tst r2, r2\r |
913 | beq .dtfc_loop\r |
914 | tst r5, #0x0800\r |
915 | beq .dtfc_TileNorm\r |
916 | b .dtfc_TileFlip\r |
917 | \r |
740da8c6 |
918 | @ check if we have detected layer covered with hi-prio tiles:\r |
919 | .dtfc_check_rendflags:\r |
d01fa204 |
920 | ldr r2, [r9, #OFS_rendstatus]\r |
283fec1b |
921 | tst r2, #(PDRAW_PLANE_HI_PRIO|PDRAW_SHHI_DONE)\r |
740da8c6 |
922 | beq .dtfc_loop\r |
7a7c6476 |
923 | bic r8, r8, #1 @ sh/hi mode off\r |
283fec1b |
924 | tst r2, #PDRAW_SHHI_DONE\r |
740da8c6 |
925 | bne .dtfc_loop @ already processed\r |
283fec1b |
926 | orr r2, r2, #PDRAW_SHHI_DONE\r |
d01fa204 |
927 | str r2, [r9, #OFS_rendstatus]\r |
740da8c6 |
928 | \r |
929 | add r1, r11,#8\r |
07abbab1 |
930 | mov r3, #320/4/4\r |
bfa12428 |
931 | mov r6, #0xbf\r |
740da8c6 |
932 | orr r6, r6, r6, lsl #8\r |
933 | orr r6, r6, r6, lsl #16\r |
934 | .dtfc_loop_shprep:\r |
07abbab1 |
935 | ldmia r1, {r2,r4,r5,r7}\r |
740da8c6 |
936 | subs r3, r3, #1\r |
07abbab1 |
937 | and r2, r2, r6\r |
938 | and r4, r4, r6\r |
939 | and r5, r5, r6\r |
940 | and r7, r7, r6\r |
941 | stmia r1!,{r2,r4,r5,r7}\r |
942 | bne .dtfc_loop_shprep\r |
943 | \r |
944 | mvn r5, #0 @ r5=prevcode=-1\r |
945 | b .dtfc_loop\r |
740da8c6 |
946 | \r |
cc68a136 |
947 | .pool\r |
948 | \r |
949 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
950 | \r |
951 | \r |
d01fa204 |
952 | @ void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est)\r |
953 | \r |
954 | .global DrawSpritesSHi\r |
e352c3af |
955 | \r |
956 | DrawSpritesSHi:\r |
fbc65db7 |
957 | ldr r3, [r0]\r |
958 | mov r12,#0xff\r |
e352c3af |
959 | ands r3, r3, #0x7f\r |
960 | bxeq lr\r |
cc68a136 |
961 | \r |
d01fa204 |
962 | stmfd sp!, {r1,r4-r11,lr} @ +est\r |
fbc65db7 |
963 | strb r12,[r0,#2] @ set end marker\r |
964 | add r10,r0, #3 @ r10=HighLnSpr end\r |
e352c3af |
965 | add r10,r10,r3 @ r10=HighLnSpr end\r |
966 | \r |
ea8c405f |
967 | .if OVERRIDE_HIGHCOL\r |
cc68a136 |
968 | ldr r11,=HighCol\r |
ea8c405f |
969 | mov r12,#0xf\r |
970 | ldr r11,[r11]\r |
971 | .else\r |
972 | ldr r11,=HighCol\r |
973 | mov r12,#0xf\r |
974 | .endif\r |
d01fa204 |
975 | ldr lr, [r1, #OFS_Pico_vram]\r |
cc68a136 |
976 | \r |
cc68a136 |
977 | \r |
e352c3af |
978 | DrawSpriteSHi:\r |
979 | @ draw next sprite\r |
980 | ldrb r0, [r10,#-1]!\r |
d01fa204 |
981 | ldr r7, [sp] @ est\r |
e352c3af |
982 | ldr r1, =HighPreSpr\r |
e352c3af |
983 | cmp r0, #0xff\r |
d01fa204 |
984 | ldmeqfd sp!, {r1,r4-r11,pc} @ end of list\r |
e352c3af |
985 | and r0, r0, #0x7f\r |
986 | add r0, r1, r0, lsl #3\r |
987 | \r |
988 | ldr r9, [r0, #4] @ sprite[1]\r |
989 | mov r2, r9, asr #16 @ r2=sx\r |
cc68a136 |
990 | \r |
e352c3af |
991 | mov r9, r9, lsl #16\r |
992 | mov r3, r9, lsr #31 @ priority\r |
993 | mov r9, r9, lsr #16\r |
fbc65db7 |
994 | @ orr r9, r9, r8, lsl #31 @ r9=code|sh[31] @@ sh is always on here now\r |
e352c3af |
995 | and r4, r9, #0x6000\r |
996 | orr r9, r9, r4, lsl #16\r |
fbc65db7 |
997 | orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
e352c3af |
998 | cmp r12,r9, lsr #28 @ sh/hi with pal3?\r |
e54507e8 |
999 | cmpne r3, #1 @ if not, is it hi prio?\r |
e352c3af |
1000 | bne DrawSpriteSHi @ non-operator low sprite, already drawn\r |
cc68a136 |
1001 | \r |
e352c3af |
1002 | ldr r3, [r0] @ sprite[0]\r |
e352c3af |
1003 | mov r6, r3, lsr #28\r |
1004 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
1005 | mov r5, r3, lsr #24\r |
1006 | and r5, r5, #7 @ r5=height\r |
cc68a136 |
1007 | \r |
d01fa204 |
1008 | ldr r7, [r7, #OFS_DrawScanline]\r |
e352c3af |
1009 | mov r0, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
cc68a136 |
1010 | \r |
e352c3af |
1011 | sub r7, r7, r0, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1012 | \r |
e352c3af |
1013 | tst r9, #0x1000\r |
1014 | movne r0, r5, lsl #3\r |
1015 | subne r0, r0, #1\r |
1016 | subne r7, r0, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
cc68a136 |
1017 | \r |
e352c3af |
1018 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
1019 | tst r9, #0x0800\r |
1020 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1021 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
cc68a136 |
1022 | \r |
e352c3af |
1023 | mov r8, r8, lsl #21\r |
1024 | mov r8, r8, lsr #17\r |
1025 | and r7, r7, #7\r |
1026 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1027 | \r |
1028 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
e352c3af |
1029 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
1030 | \r |
1031 | add r6, r6, #1 @ inc now\r |
1032 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1033 | b .dsprShi_loop_enter\r |
1034 | \r |
1035 | .dsprShi_loop:\r |
1036 | subs r6, r6, #1 @ width--\r |
1037 | beq DrawSpriteSHi\r |
1038 | adds r0, r0, #8 @ sx+=8\r |
1039 | add r8, r8, r5 @ tile+=delta\r |
1040 | \r |
1041 | .dsprShi_loop_enter:\r |
1042 | ble .dsprShi_loop @ sx <= 0\r |
cc68a136 |
1043 | cmp r0, #328\r |
e352c3af |
1044 | bge DrawSpriteSHi\r |
cc68a136 |
1045 | \r |
1046 | mov r8, r8, lsl #17\r |
e352c3af |
1047 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
cc68a136 |
1048 | \r |
e352c3af |
1049 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1050 | add r1, r11, r0 @ r1=pdest\r |
cc68a136 |
1051 | tst r2, r2\r |
e352c3af |
1052 | beq .dsprShi_loop\r |
cc68a136 |
1053 | \r |
e352c3af |
1054 | cmp r12, r9, lsr #28\r |
1055 | beq .dsprShi_shadow\r |
cc68a136 |
1056 | \r |
1057 | cmp r2, r2, ror #4\r |
e352c3af |
1058 | beq .dsprShi_SingleColor @ tileline singlecolor \r |
cc68a136 |
1059 | \r |
e352c3af |
1060 | tst r9, #0x0800\r |
1061 | bne .dsprShi_TileFlip\r |
cc68a136 |
1062 | \r |
e352c3af |
1063 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
1064 | @ scratch: r4, r7\r |
1065 | .dsprShi_TileNorm:\r |
cc68a136 |
1066 | TileNorm r12\r |
e352c3af |
1067 | b .dsprShi_loop\r |
cc68a136 |
1068 | \r |
e352c3af |
1069 | .dsprShi_TileFlip:\r |
7a7c6476 |
1070 | TileFlip r12\r |
e352c3af |
1071 | b .dsprShi_loop\r |
7a7c6476 |
1072 | \r |
e352c3af |
1073 | .dsprShi_SingleColor:\r |
cc68a136 |
1074 | and r4, r2, #0xf\r |
1075 | orr r4, r3, r4\r |
1076 | orr r4, r4, r4, lsl #8\r |
e352c3af |
1077 | tst r0, #1 @ not aligned?\r |
cc68a136 |
1078 | strneb r4, [r1], #1\r |
1079 | streqh r4, [r1], #2\r |
1080 | strh r4, [r1], #2\r |
1081 | strh r4, [r1], #2\r |
1082 | strh r4, [r1], #2\r |
1083 | strneb r4, [r1], #1\r |
e352c3af |
1084 | b .dsprShi_loop\r |
cc68a136 |
1085 | \r |
e352c3af |
1086 | .dsprShi_shadow:\r |
1087 | tst r9, #0x8000\r |
1088 | beq .dsprShi_shadow_lowpri\r |
07abbab1 |
1089 | \r |
cc68a136 |
1090 | cmp r2, r2, ror #4\r |
e352c3af |
1091 | beq .dsprShi_singlec_sh\r |
cc68a136 |
1092 | \r |
e352c3af |
1093 | tst r9, #0x0800\r |
1094 | bne .dsprShi_TileFlip_sh\r |
cc68a136 |
1095 | \r |
e54507e8 |
1096 | @ (r1=pdest, r2=pixels8, r3=pal) r4, r7: scratch, r12: helper pattern\r |
e352c3af |
1097 | .dsprShi_TileNorm_sh:\r |
cc68a136 |
1098 | TileNormSh\r |
e352c3af |
1099 | b .dsprShi_loop\r |
cc68a136 |
1100 | \r |
e352c3af |
1101 | .dsprShi_TileFlip_sh:\r |
7a7c6476 |
1102 | TileFlipSh\r |
e352c3af |
1103 | b .dsprShi_loop\r |
7a7c6476 |
1104 | \r |
e352c3af |
1105 | .dsprShi_singlec_sh:\r |
cc68a136 |
1106 | cmp r2, #0xe0000000\r |
e352c3af |
1107 | bcc .dsprShi_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
cc68a136 |
1108 | tst r2, #0x10000000\r |
e352c3af |
1109 | bne .dsprShi_sh_sh\r |
cc68a136 |
1110 | TileSingleHi\r |
e352c3af |
1111 | b .dsprShi_loop\r |
cc68a136 |
1112 | \r |
e352c3af |
1113 | .dsprShi_sh_sh:\r |
cc68a136 |
1114 | TileSingleSh\r |
e352c3af |
1115 | b .dsprShi_loop\r |
cc68a136 |
1116 | \r |
e352c3af |
1117 | .dsprShi_shadow_lowpri:\r |
1118 | tst r9, #0x800\r |
1119 | bne .dsprShi_TileFlip_sh_lp\r |
07abbab1 |
1120 | \r |
e352c3af |
1121 | .dsprShi_TileNorm_sh_lp:\r |
07abbab1 |
1122 | TileNormSh_onlyop_lp\r |
e352c3af |
1123 | b .dsprShi_loop\r |
07abbab1 |
1124 | \r |
e352c3af |
1125 | .dsprShi_TileFlip_sh_lp:\r |
07abbab1 |
1126 | TileFlipSh_onlyop_lp\r |
e352c3af |
1127 | b .dsprShi_loop\r |
07abbab1 |
1128 | \r |
cc68a136 |
1129 | .pool\r |
1130 | \r |
1131 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1132 | \r |
d01fa204 |
1133 | @ void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
1134 | @ struct PicoEState *est)\r |
1135 | \r |
1136 | .global DrawAllSprites\r |
283fec1b |
1137 | \r |
1138 | DrawAllSprites:\r |
fbc65db7 |
1139 | orr r1, r2, r1, lsl #1\r |
d01fa204 |
1140 | ldr r12,[r3, #OFS_rendstatus]\r |
0fc0e241 |
1141 | tst r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
283fec1b |
1142 | beq das_no_prep\r |
d01fa204 |
1143 | stmfd sp!, {r0,r1,r3,lr}\r |
283fec1b |
1144 | and r0, r12,#PDRAW_DIRTY_SPRITES\r |
0fc0e241 |
1145 | bic r12,r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
d01fa204 |
1146 | str r12,[r3, #OFS_rendstatus]\r |
283fec1b |
1147 | bl PrepareSprites\r |
d01fa204 |
1148 | ldmfd sp!, {r0,r1,r3,lr}\r |
283fec1b |
1149 | \r |
1150 | das_no_prep:\r |
d01fa204 |
1151 | ldr r2, [r0]\r |
1152 | ands r2, r2, #0x7f\r |
283fec1b |
1153 | bxeq lr\r |
1154 | \r |
1155 | @ time to do some real work\r |
d01fa204 |
1156 | stmfd sp!, {r1,r3-r11,lr} @ +sh|prio<<1 +est\r |
283fec1b |
1157 | mov r12,#0xff\r |
fbc65db7 |
1158 | strb r12,[r0,#2] @ set end marker\r |
1159 | add r10,r0, #3\r |
d01fa204 |
1160 | add r10,r10,r2 @ r10=HighLnSpr end\r |
283fec1b |
1161 | \r |
1162 | .if OVERRIDE_HIGHCOL\r |
1163 | ldr r11,=HighCol\r |
1164 | mov r12,#0xf\r |
1165 | ldr r11,[r11]\r |
1166 | .else\r |
1167 | ldr r11,=HighCol\r |
1168 | mov r12,#0xf\r |
1169 | .endif\r |
d01fa204 |
1170 | ldr lr, [r3, #OFS_Pico_vram]\r |
283fec1b |
1171 | \r |
1172 | @ + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size\r |
cc68a136 |
1173 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1174 | \r |
d01fa204 |
1175 | DrawSprite:\r |
283fec1b |
1176 | @ draw next sprite\r |
1177 | ldrb r0, [r10,#-1]!\r |
d01fa204 |
1178 | ldr r8, [sp] @ sh|prio<<1\r |
1179 | ldr r7, [sp, #4] @ est\r |
e352c3af |
1180 | mov r2, r0, lsr #7\r |
1181 | cmp r0, #0xff\r |
d01fa204 |
1182 | ldmeqfd sp!, {r1,r3-r11,pc} @ end of list\r |
97a7f774 |
1183 | cmp r2, r8, lsr #1\r |
e352c3af |
1184 | bne DrawSprite @ wrong priority\r |
d01fa204 |
1185 | ldr r1, =HighPreSpr\r |
283fec1b |
1186 | and r0, r0, #0x7f\r |
1187 | add r0, r1, r0, lsl #3\r |
cc68a136 |
1188 | \r |
cc68a136 |
1189 | ldr r3, [r0] @ sprite[0]\r |
d01fa204 |
1190 | ldr r7, [r7, #OFS_DrawScanline]\r |
cc68a136 |
1191 | mov r6, r3, lsr #28\r |
1192 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
1193 | mov r5, r3, lsr #24\r |
1194 | and r5, r5, #7 @ r5=height\r |
1195 | \r |
1196 | mov r4, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
1197 | \r |
cc68a136 |
1198 | ldr r9, [r0, #4]\r |
b6d7ac70 |
1199 | sub r7, r7, r4, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1200 | \r |
cc68a136 |
1201 | mov r2, r9, asr #16 @ r2=sx\r |
e5fa9817 |
1202 | mov r9, r9, lsl #16\r |
1203 | mov r9, r9, lsr #16\r |
97a7f774 |
1204 | orr r9, r9, r8, lsl #31 @ r9=code|sh[31]\r |
cc68a136 |
1205 | \r |
1206 | tst r9, #0x1000\r |
1207 | movne r4, r5, lsl #3\r |
1208 | subne r4, r4, #1\r |
1209 | subne r7, r4, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
1210 | \r |
07abbab1 |
1211 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
cc68a136 |
1212 | tst r9, #0x0800\r |
1213 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1214 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
1215 | \r |
07abbab1 |
1216 | mov r8, r8, lsl #21\r |
1217 | mov r8, r8, lsr #17\r |
cc68a136 |
1218 | and r7, r7, #7\r |
1219 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1220 | \r |
e5fa9817 |
1221 | .dspr_continue:\r |
cc68a136 |
1222 | @ cache some stuff to avoid mem access\r |
cc68a136 |
1223 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
1224 | and r4, r9, #0x6000\r |
1225 | orr r9, r9, r4, lsl #16\r |
97a7f774 |
1226 | orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
cc68a136 |
1227 | \r |
cc68a136 |
1228 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
97a7f774 |
1229 | orrmi r3, r3, #0x40 @ for sh/hi\r |
cc68a136 |
1230 | \r |
1231 | add r6, r6, #1 @ inc now\r |
1232 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1233 | b .dspr_loop_enter\r |
1234 | \r |
1235 | .dspr_loop:\r |
1236 | subs r6, r6, #1 @ width--\r |
283fec1b |
1237 | beq DrawSprite\r |
cc68a136 |
1238 | adds r0, r0, #8 @ sx+=8\r |
1239 | add r8, r8, r5 @ tile+=delta\r |
1240 | \r |
1241 | .dspr_loop_enter:\r |
1242 | ble .dspr_loop @ sx <= 0\r |
1243 | cmp r0, #328\r |
283fec1b |
1244 | bge DrawSprite\r |
cc68a136 |
1245 | \r |
1246 | mov r8, r8, lsl #17\r |
1247 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
1248 | \r |
1249 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1250 | add r1, r11, r0 @ r1=pdest\r |
1251 | tst r2, r2\r |
1252 | beq .dspr_loop\r |
1253 | \r |
1254 | cmp r12, r9, lsr #28\r |
1255 | beq .dspr_shadow\r |
1256 | \r |
1257 | cmp r2, r2, ror #4\r |
1258 | beq .dspr_SingleColor @ tileline singlecolor \r |
1259 | \r |
1260 | tst r9, #0x0800\r |
7a7c6476 |
1261 | bne .dspr_TileFlip\r |
cc68a136 |
1262 | \r |
1263 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1264 | @ scratch: r4, r7\r |
1265 | .dspr_TileNorm:\r |
1266 | TileNorm r12\r |
1267 | b .dspr_loop\r |
1268 | \r |
7a7c6476 |
1269 | .dspr_TileFlip:\r |
1270 | TileFlip r12\r |
1271 | b .dspr_loop\r |
1272 | \r |
07abbab1 |
1273 | .dspr_singlec_sh:\r |
1274 | cmp r2, #0xe0000000\r |
e54507e8 |
1275 | bcs .dspr_TileNorm_sh @ op. tileline, markop. XXX: maybe add a spec. handler?\r |
07abbab1 |
1276 | \r |
cc68a136 |
1277 | .dspr_SingleColor:\r |
1278 | and r4, r2, #0xf\r |
1279 | orr r4, r3, r4\r |
1280 | orr r4, r4, r4, lsl #8\r |
1281 | tst r0, #1 @ not aligned?\r |
1282 | strneb r4, [r1], #1\r |
1283 | streqh r4, [r1], #2\r |
1284 | strh r4, [r1], #2\r |
1285 | strh r4, [r1], #2\r |
1286 | strh r4, [r1], #2\r |
1287 | strneb r4, [r1], #1\r |
1288 | b .dspr_loop\r |
1289 | \r |
1290 | .dspr_shadow:\r |
1291 | cmp r2, r2, ror #4\r |
1292 | beq .dspr_singlec_sh\r |
1293 | \r |
1294 | tst r9, #0x0800\r |
7a7c6476 |
1295 | bne .dspr_TileFlip_sh\r |
cc68a136 |
1296 | \r |
1297 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1298 | .dspr_TileNorm_sh:\r |
e54507e8 |
1299 | TileNormSh_markop\r |
cc68a136 |
1300 | b .dspr_loop\r |
1301 | \r |
7a7c6476 |
1302 | .dspr_TileFlip_sh:\r |
e54507e8 |
1303 | TileFlipSh_markop\r |
cc68a136 |
1304 | b .dspr_loop\r |
1305 | \r |
1306 | \r |
cc68a136 |
1307 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1308 | \r |
d01fa204 |
1309 | @ void DrawWindow(int tstart, int tend, int prio, int sh\r |
1310 | @ struct PicoEState *est)\r |
1311 | \r |
1312 | .global DrawWindow\r |
cc68a136 |
1313 | \r |
1314 | DrawWindow:\r |
d01fa204 |
1315 | ldr r12, [sp] @ est\r |
cc68a136 |
1316 | stmfd sp!, {r4-r11,lr}\r |
1317 | \r |
d01fa204 |
1318 | ldr r6, [r12, #OFS_Pico_video]\r |
1319 | ldr r10, [r12, #OFS_DrawScanline]\r |
1320 | mov r11, r12 @ est\r |
1321 | ldrb r12, [r6, #3] @ pvid->reg[3]\r |
cc68a136 |
1322 | \r |
d01fa204 |
1323 | ldr r4, [r6, #12]\r |
cc68a136 |
1324 | mov r5, r10, lsr #3\r |
1325 | and r10, r10, #7\r |
1326 | mov r10, r10, lsl #1 @ r10=ty\r |
1327 | \r |
1328 | mov r12, r12, lsl #10\r |
1329 | \r |
1330 | tst r4, #1 @ 40 cell mode?\r |
1331 | andne r12, r12, #0xf000 @ 0x3c<<10\r |
1332 | andeq r12, r12, #0xf800\r |
1333 | addne r12, r12, r5, lsl #7\r |
1334 | addeq r12, r12, r5, lsl #6 @ nametab\r |
1335 | add r12, r12, r0, lsl #2 @ +starttile\r |
1336 | \r |
d01fa204 |
1337 | ldr lr, [r11, #OFS_Pico_vram]\r |
1338 | ldr r6, [r11, #OFS_rendstatus]\r |
cc68a136 |
1339 | \r |
1340 | @ fetch the first code now\r |
1341 | ldrh r7, [lr, r12]\r |
1342 | \r |
283fec1b |
1343 | ands r6, r6, #PDRAW_WND_DIFF_PRIO\r |
cc68a136 |
1344 | orr r6, r6, r2\r |
cc68a136 |
1345 | \r |
7292c709 |
1346 | eoreq r8, r2, r7, lsr #15 @ do prio bits differ?\r |
1347 | cmpeq r8, #1\r |
1348 | ldmeqfd sp!, {r4-r11,pc} @ yes, assume that whole window uses same priority\r |
cc68a136 |
1349 | \r |
cc68a136 |
1350 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
1351 | \r |
1352 | sub r8, r1, r0\r |
cc68a136 |
1353 | \r |
1354 | @ cache some stuff to avoid mem access\r |
ea8c405f |
1355 | .if OVERRIDE_HIGHCOL\r |
1356 | ldr r11,=HighCol\r |
1357 | mov r8, r8, lsl #1 @ cells\r |
1358 | ldr r11,[r11]\r |
1359 | mvn r9, #0 @ r9=prevcode=-1\r |
1360 | add r11,r11,#8\r |
1361 | .else\r |
cc68a136 |
1362 | ldr r11,=(HighCol+8)\r |
ea8c405f |
1363 | mov r8, r8, lsl #1 @ cells\r |
1364 | mvn r9, #0 @ r9=prevcode=-1\r |
1365 | .endif\r |
07abbab1 |
1366 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
cc68a136 |
1367 | mov r0, #0xf\r |
1368 | b .dwloop_enter\r |
1369 | \r |
07abbab1 |
1370 | @ r4,r5 are scratch in this loop\r |
cc68a136 |
1371 | .dwloop:\r |
1372 | add r1, r1, #8\r |
1373 | .dwloop_nor1:\r |
1374 | add r12, r12, #2 @ halfwords\r |
1375 | ldrh r7, [lr, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
1376 | subs r8, r8, #1\r |
1377 | beq .dwloop_end @ done\r |
1378 | \r |
1379 | eor r5, r6, r7, lsr #15\r |
1380 | tst r5, #1\r |
1381 | orrne r6, r6, #2 @ wrong pri\r |
1382 | bne .dwloop\r |
1383 | \r |
1384 | cmp r7, r9\r |
1385 | beq .dw_samecode @ we know stuff about this tile already\r |
1386 | \r |
1387 | .dwloop_enter:\r |
1388 | mov r9, r7 @ remember code\r |
1389 | \r |
1390 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
1391 | mov r2, r2, lsl #1\r |
1392 | add r2, r10, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4; addr+=ty\r |
1393 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
1394 | \r |
1395 | and r3, r9, #0x6000\r |
1396 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
1397 | \r |
1398 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1399 | \r |
1400 | .dw_samecode:\r |
1401 | tst r6, #0x100\r |
1402 | bne .dw_shadow\r |
1403 | .dw_shadow_done:\r |
1404 | tst r2, r2\r |
1405 | beq .dwloop @ tileline blank\r |
1406 | \r |
1407 | cmp r2, r2, ror #4\r |
1408 | beq .dw_SingleColor @ tileline singlecolor \r |
1409 | \r |
1410 | tst r9, #0x0800\r |
7a7c6476 |
1411 | bne .dw_TileFlip\r |
cc68a136 |
1412 | \r |
1413 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
1414 | .dw_TileNorm:\r |
1415 | TileNorm r0\r |
1416 | b .dwloop\r |
1417 | \r |
7a7c6476 |
1418 | .dw_TileFlip:\r |
1419 | TileFlip r0\r |
1420 | b .dwloop\r |
1421 | \r |
cc68a136 |
1422 | .dw_SingleColor:\r |
1423 | and r4, r0, r2 @ #0x0000000f\r |
1424 | orr r4, r3, r4\r |
1425 | orr r4, r4, r4, lsl #8\r |
1426 | orr r4, r4, r4, lsl #16\r |
1427 | mov r5, r4\r |
1428 | stmia r1!, {r4,r5}\r |
1429 | b .dwloop_nor1 @ we incremeted r1 ourselves\r |
1430 | \r |
1431 | .dw_shadow:\r |
1432 | tst r6, #1 @ hi pri?\r |
1433 | orreq r3, r3, #0x40\r |
1434 | beq .dw_shadow_done\r |
1435 | ldr r4, [r1]\r |
07abbab1 |
1436 | mov r5, #0x3f\r |
1437 | orr r5, r5, r5, lsl #8\r |
1438 | orr r5, r5, r5, lsl #16\r |
1439 | and r4, r4, r5\r |
cc68a136 |
1440 | str r4, [r1]\r |
1441 | ldr r4, [r1,#4]\r |
07abbab1 |
1442 | and r4, r4, r5\r |
cc68a136 |
1443 | str r4, [r1,#4]\r |
1444 | b .dw_shadow_done\r |
1445 | \r |
1446 | .dwloop_end:\r |
d01fa204 |
1447 | and r2, r6, #PDRAW_WND_DIFF_PRIO\r |
1448 | ldmfd sp!, {r4-r11,lr}\r |
1449 | ldr r0, [sp]\r |
1450 | ldr r1, [r0, #OFS_rendstatus]\r |
1451 | orr r1, r1, r2\r |
1452 | str r1, [r0, #OFS_rendstatus]\r |
cc68a136 |
1453 | \r |
d01fa204 |
1454 | bx lr\r |
cc68a136 |
1455 | \r |
1456 | \r |
1457 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1458 | \r |
1459 | \r |
1460 | @ hilights 2 pixels in RGB444/BGR444 format\r |
1461 | .macro TileDoShHi2Pixels444 reg\r |
1462 | mov \reg, \reg, ror #12\r |
1463 | adds \reg, \reg, #0x40000000\r |
1464 | orrcs \reg, \reg, #0xf0000000\r |
1465 | mov \reg, \reg, ror #28\r |
1466 | adds \reg, \reg, #0x40000000\r |
1467 | orrcs \reg, \reg, #0xf0000000\r |
1468 | mov \reg, \reg, ror #28\r |
1469 | adds \reg, \reg, #0x40000000\r |
1470 | orrcs \reg, \reg, #0xf0000000\r |
1471 | mov \reg, \reg, ror #24\r |
1472 | adds \reg, \reg, #0x40000000\r |
1473 | orrcs \reg, \reg, #0xf0000000\r |
1474 | mov \reg, \reg, ror #28\r |
1475 | adds \reg, \reg, #0x40000000\r |
1476 | orrcs \reg, \reg, #0xf0000000\r |
1477 | mov \reg, \reg, ror #28\r |
1478 | adds \reg, \reg, #0x40000000\r |
1479 | orrcs \reg, \reg, #0xf0000000\r |
1480 | mov \reg, \reg, ror #12\r |
1481 | .endm\r |
1482 | \r |
1483 | \r |
cc68a136 |
1484 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1485 | \r |
1486 | \r |
cc68a136 |
1487 | @ Convert 0000bbb0 ggg0rrr0\r |
1488 | @ to rrrrrggg gggbbbbb\r |
1489 | \r |
a39d8ba5 |
1490 | @ r2,r3 - scratch, lr = 0x001c001c, r8 = 0x08610861\r |
cc68a136 |
1491 | .macro convRGB565 reg\r |
a39d8ba5 |
1492 | and r2, lr, \reg,lsr #7 @ b\r |
1493 | and r3, lr, \reg,lsr #3 @ g\r |
1494 | and \reg, lr, \reg,lsl #1 @ r\r |
1495 | orr r2, r2, r3, lsl #6\r |
1496 | orr \reg, r2, \reg,lsl #11\r |
1497 | \r |
1498 | and r2, r8, \reg,lsr #4\r |
1499 | orr \reg, \reg, r2\r |
cc68a136 |
1500 | .endm\r |
1501 | \r |
a39d8ba5 |
1502 | @ trashes: r2-r8,r12,lr; r8 = 0x08610861; r0,r1 are advanced\r |
b2305d08 |
1503 | .macro vidConvCpyRGB565_local\r |
2ec14aec |
1504 | mov r12, r2, lsr #3 @ repeats\r |
cc68a136 |
1505 | mov lr, #0x001c0000\r |
1506 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
cc68a136 |
1507 | \r |
b2305d08 |
1508 | 0:\r |
cc68a136 |
1509 | ldmia r1!, {r4-r7}\r |
1510 | subs r12, r12, #1\r |
1511 | convRGB565 r4\r |
1512 | str r4, [r0], #4\r |
1513 | convRGB565 r5\r |
1514 | str r5, [r0], #4\r |
1515 | convRGB565 r6\r |
1516 | str r6, [r0], #4\r |
1517 | convRGB565 r7\r |
1518 | str r7, [r0], #4\r |
1519 | \r |
b2305d08 |
1520 | bgt 0b\r |
1521 | .endm\r |
1522 | \r |
1523 | \r |
1524 | .global vidConvCpyRGB565\r |
cc68a136 |
1525 | \r |
b2305d08 |
1526 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
1527 | stmfd sp!, {r4-r9,lr}\r |
a39d8ba5 |
1528 | mov r8, #0x0061\r |
1529 | orr r8, r8, #0x0800\r |
f4750ee0 |
1530 | orr r8, r8, r8, lsl #16\r |
b2305d08 |
1531 | vidConvCpyRGB565_local\r |
cc68a136 |
1532 | ldmfd sp!, {r4-r9,lr}\r |
1533 | bx lr\r |
1534 | \r |
1535 | \r |
d01fa204 |
1536 | @ void PicoDoHighPal555(int sh, int line, struct PicoEState *est)\r |
1537 | \r |
1538 | .global PicoDoHighPal555\r |
cc68a136 |
1539 | \r |
b2305d08 |
1540 | PicoDoHighPal555:\r |
d01fa204 |
1541 | stmfd sp!, {r4-r10,lr}\r |
1542 | mov r10,r2 @ est\r |
b2305d08 |
1543 | mov r1, #0\r |
d01fa204 |
1544 | ldr r8, [r10, #OFS_Pico_video]\r |
cc68a136 |
1545 | \r |
b2305d08 |
1546 | PicoDoHighPal555_nopush:\r |
a39d8ba5 |
1547 | orr r9, r1, r0, lsl #31 @ 0:called from FinalizeLine555, 31: s/h\r |
b2305d08 |
1548 | \r |
b2305d08 |
1549 | ldr r0, =HighPal\r |
1550 | \r |
cc68a136 |
1551 | mov r1, #0\r |
b2305d08 |
1552 | strb r1, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1553 | \r |
3d48f143 |
1554 | sub r1, r8, #0x128 @ r1=Pico.cram\r |
cc68a136 |
1555 | mov r2, #0x40\r |
a39d8ba5 |
1556 | mov r8, #0x0061\r |
1557 | orr r8, r8, #0x0800\r |
f4750ee0 |
1558 | orr r8, r8, r8, lsl #16\r |
a39d8ba5 |
1559 | \r |
b2305d08 |
1560 | vidConvCpyRGB565_local\r |
cc68a136 |
1561 | \r |
a39d8ba5 |
1562 | tst r9, #(1<<31)\r |
b2305d08 |
1563 | beq PicoDoHighPal555_end\r |
1564 | \r |
1565 | ldr r3, =HighPal\r |
cc68a136 |
1566 | \r |
1567 | @ shadowed pixels:\r |
1568 | mov r12, #0x008e\r |
cc68a136 |
1569 | add r4, r3, #0x40*2\r |
b2305d08 |
1570 | orr r12,r12,#0x7300\r |
cc68a136 |
1571 | add r5, r3, #0xc0*2\r |
b2305d08 |
1572 | orr r12,r12,r12,lsl #16\r |
cc68a136 |
1573 | mov lr, #0x40/4\r |
1574 | .fl_loopcpRGB555_sh:\r |
1575 | ldmia r3!, {r1,r6}\r |
1576 | subs lr, lr, #1\r |
1577 | and r1, r12, r1, lsr #1\r |
1578 | and r6, r12, r6, lsr #1\r |
1579 | stmia r4!, {r1,r6}\r |
1580 | stmia r5!, {r1,r6}\r |
1581 | bne .fl_loopcpRGB555_sh\r |
1582 | \r |
1583 | @ hilighted pixels:\r |
a39d8ba5 |
1584 | @ t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e;\r |
1585 | @ t |= (t >> 4) & 0x08610861;\r |
1586 | @ r8=0x08610861\r |
cc68a136 |
1587 | sub r3, r3, #0x40*2\r |
a39d8ba5 |
1588 | mov lr, #0x40/4\r |
cc68a136 |
1589 | .fl_loopcpRGB555_hi:\r |
a39d8ba5 |
1590 | ldmia r3!, {r1,r6}\r |
1591 | and r1, r12, r1, lsr #1\r |
1592 | and r6, r12, r6, lsr #1\r |
1593 | add r1, r12, r1\r |
1594 | add r6, r12, r6\r |
1595 | and r5, r8, r1, lsr #4\r |
1596 | and r7, r8, r6, lsr #4\r |
1597 | orr r1, r1, r5\r |
1598 | orr r6, r6, r7\r |
1599 | stmia r4!, {r1,r6}\r |
cc68a136 |
1600 | subs lr, lr, #1\r |
1601 | bne .fl_loopcpRGB555_hi\r |
b2305d08 |
1602 | mov r0, #1\r |
cc68a136 |
1603 | \r |
b2305d08 |
1604 | PicoDoHighPal555_end:\r |
a39d8ba5 |
1605 | tst r9, #1\r |
d01fa204 |
1606 | ldmeqfd sp!, {r4-r10,pc}\r |
b2305d08 |
1607 | \r |
d01fa204 |
1608 | ldr r8, [r10, #OFS_Pico_video]\r |
b2305d08 |
1609 | b FinalizeLineRGB555_pal_done\r |
1610 | \r |
1611 | \r |
d01fa204 |
1612 | @ void FinalizeLine555(int sh, int line, struct PicoEState *est)\r |
1613 | \r |
1614 | .global FinalizeLine555\r |
b2305d08 |
1615 | \r |
5a681086 |
1616 | FinalizeLine555:\r |
d01fa204 |
1617 | stmfd sp!, {r4-r10,lr}\r |
1618 | mov r10,r2 @ est\r |
1619 | ldr r8, [r10, #OFS_Pico_video]\r |
b2305d08 |
1620 | \r |
1621 | ldrb r2, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1622 | mov r1, #1\r |
1623 | tst r2, r2\r |
1624 | bne PicoDoHighPal555_nopush\r |
1625 | \r |
1626 | FinalizeLineRGB555_pal_done:\r |
1627 | ldr r3, =HighPal\r |
cc68a136 |
1628 | \r |
d01fa204 |
1629 | ldr r12, [r10, #OFS_rendstatus]\r |
b2305d08 |
1630 | eors r0, r0, #1 @ sh is 0\r |
e5fa9817 |
1631 | mov lr, #0xff\r |
283fec1b |
1632 | tstne r12,#PDRAW_ACC_SPRITES\r |
e5fa9817 |
1633 | movne lr, #0x3f\r |
1634 | \r |
ea8c405f |
1635 | .if OVERRIDE_HIGHCOL\r |
1636 | ldr r1, =HighCol\r |
1637 | ldr r0, =DrawLineDest\r |
1638 | ldr r1, [r1]\r |
1639 | ldr r0, [r0]\r |
1640 | add r1, r1, #8\r |
1641 | .else\r |
3d48f143 |
1642 | ldr r0, =DrawLineDest\r |
cc68a136 |
1643 | ldr r1, =(HighCol+8)\r |
3d48f143 |
1644 | ldr r0, [r0]\r |
ea8c405f |
1645 | .endif\r |
3d48f143 |
1646 | \r |
1647 | ldrb r12, [r8, #12]\r |
cc68a136 |
1648 | mov lr, lr, lsl #1\r |
1649 | \r |
3d48f143 |
1650 | tst r12, #1\r |
1651 | movne r2, #320/8 @ len\r |
1652 | bne .fl_no32colRGB555\r |
1653 | ldr r4, =PicoOpt\r |
1654 | mov r2, #256/8\r |
1655 | ldr r4, [r4]\r |
1656 | tst r4, #0x4000\r |
1657 | bne .fl_32scale_RGB555\r |
1658 | tst r4, #0x0100\r |
1659 | addeq r0, r0, #32*2\r |
1660 | \r |
1661 | .fl_no32colRGB555:\r |
cc68a136 |
1662 | \r |
f62850ba |
1663 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1664 | @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r |
1665 | tst r0, #2\r |
1666 | bne .fl_RGB555u\r |
f62850ba |
1667 | #endif\r |
499a0be3 |
1668 | \r |
1669 | .fl_loopRGB555:\r |
cc68a136 |
1670 | ldr r12, [r1], #4\r |
1671 | ldr r7, [r1], #4\r |
1672 | \r |
1673 | and r4, lr, r12, lsl #1\r |
1674 | ldrh r4, [r3, r4]\r |
1675 | and r5, lr, r12, lsr #7\r |
1676 | ldrh r5, [r3, r5]\r |
1677 | and r6, lr, r12, lsr #15\r |
1678 | ldrh r6, [r3, r6]\r |
1679 | orr r4, r4, r5, lsl #16\r |
1680 | \r |
1681 | and r5, lr, r12, lsr #23\r |
1682 | ldrh r5, [r3, r5]\r |
1683 | and r8, lr, r7, lsl #1\r |
1684 | ldrh r8, [r3, r8]\r |
1685 | orr r5, r6, r5, lsl #16\r |
1686 | \r |
1687 | and r6, lr, r7, lsr #7\r |
1688 | ldrh r6, [r3, r6]\r |
1689 | and r12,lr, r7, lsr #15\r |
1690 | ldrh r12,[r3, r12]\r |
499a0be3 |
1691 | and r7, lr, r7, lsr #23\r |
1692 | ldrh r7, [r3, r7]\r |
cc68a136 |
1693 | orr r8, r8, r6, lsl #16\r |
1694 | \r |
cc68a136 |
1695 | subs r2, r2, #1\r |
499a0be3 |
1696 | orr r12,r12, r7, lsl #16\r |
cc68a136 |
1697 | \r |
1698 | stmia r0!, {r4,r5,r8,r12}\r |
1699 | bne .fl_loopRGB555\r |
1700 | \r |
d01fa204 |
1701 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1702 | bx lr\r |
1703 | \r |
1704 | \r |
1705 | .fl_32scale_RGB555:\r |
3d48f143 |
1706 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1707 | orr r9, r9, #0x00e7\r |
1708 | \r |
f62850ba |
1709 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1710 | tst r0, #2\r |
1711 | bne .fl_32scale_RGB555u\r |
f62850ba |
1712 | #endif\r |
499a0be3 |
1713 | \r |
3d48f143 |
1714 | .fl_loop32scale_RGB555:\r |
1715 | ldr r12, [r1], #4\r |
1716 | ldr r7, [r1], #4\r |
cc68a136 |
1717 | \r |
3d48f143 |
1718 | and r4, lr, r12,lsl #1\r |
1719 | ldrh r4, [r3, r4]\r |
1720 | and r5, lr, r12,lsr #7\r |
1721 | ldrh r5, [r3, r5]\r |
1722 | and r4, r4, r9, lsl #2\r |
1723 | orr r4, r4, r4, lsl #14 @ r4[31:16] = 1/4 pix_s 0\r |
1724 | and r5, r5, r9, lsl #2\r |
1725 | sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r |
1726 | add r4, r4, r6, lsl #16 @ pix_d 0, 1\r |
1727 | and r6, lr, r12,lsr #15\r |
1728 | ldrh r6, [r3, r6]\r |
1729 | and r12,lr, r12,lsr #23\r |
1730 | ldrh r12,[r3, r12]\r |
1731 | and r6, r6, r9, lsl #2\r |
1732 | add r5, r5, r6\r |
1733 | mov r5, r5, lsr #1\r |
1734 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1735 | orr r5, r5, r6, lsl #16\r |
1736 | \r |
1737 | and r6, lr, r7, lsl #1\r |
1738 | ldrh r6, [r3, r6]\r |
1739 | and r12,r12,r9, lsl #2\r |
1740 | add r5, r5, r12,lsl #14 @ pix_d 2, 3\r |
1741 | and r6, r6, r9, lsl #2\r |
1742 | orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r |
1743 | \r |
1744 | and r12,lr, r7, lsr #7\r |
1745 | ldrh r12,[r3, r12]\r |
1746 | and r10,lr, r7, lsr #15\r |
1747 | ldrh r10,[r3, r10]\r |
1748 | and r12,r12,r9, lsl #2\r |
1749 | sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r |
1750 | add r8, r8, r6, lsr #18\r |
1751 | and r7, lr, r7, lsr #23\r |
1752 | ldrh r7, [r3, r7]\r |
1753 | and r10,r10,r9, lsl #2\r |
1754 | orr r8, r8, r10,lsl #15\r |
1755 | add r8, r8, r12,lsl #15 @ pix_d 6, 7\r |
1756 | sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r |
1757 | and r7, r7, r9, lsl #2\r |
1758 | add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r |
1759 | orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r |
1760 | \r |
1761 | subs r2, r2, #1\r |
1762 | \r |
1763 | stmia r0!, {r4,r5,r6,r8,r10}\r |
1764 | bne .fl_loop32scale_RGB555\r |
1765 | \r |
d01fa204 |
1766 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1767 | bx lr\r |
1768 | \r |
f62850ba |
1769 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1770 | @ unaligned versions of loops\r |
9839d126 |
1771 | @ warning: starts drawing 2bytes before dst\r |
499a0be3 |
1772 | \r |
1773 | .fl_RGB555u:\r |
9839d126 |
1774 | sub r0, r0, #2 @ initial adjustment\r |
1775 | mov r8, #0\r |
499a0be3 |
1776 | \r |
1777 | .fl_loopRGB555u:\r |
1778 | ldr r12, [r1], #4\r |
1779 | ldr r7, [r1], #4\r |
1780 | \r |
9839d126 |
1781 | and r6, lr, r12,lsl #1\r |
1782 | ldrh r6, [r3, r6]\r |
1783 | and r5, lr, r12,lsr #7\r |
499a0be3 |
1784 | ldrh r5, [r3, r5]\r |
9839d126 |
1785 | orr r4, r8, r6, lsl #16\r |
499a0be3 |
1786 | \r |
9839d126 |
1787 | and r6, lr, r12,lsr #15\r |
499a0be3 |
1788 | ldrh r6, [r3, r6]\r |
9839d126 |
1789 | and r8, lr, r12,lsr #23\r |
499a0be3 |
1790 | ldrh r8, [r3, r8]\r |
9839d126 |
1791 | orr r5, r5, r6, lsl #16\r |
499a0be3 |
1792 | \r |
9839d126 |
1793 | and r6, lr, r7, lsl #1\r |
499a0be3 |
1794 | ldrh r6, [r3, r6]\r |
9839d126 |
1795 | and r12,lr, r7, lsr #7\r |
499a0be3 |
1796 | ldrh r12,[r3, r12]\r |
9839d126 |
1797 | orr r6, r8, r6, lsl #16\r |
1798 | \r |
1799 | and r8, lr, r7, lsr #15\r |
499a0be3 |
1800 | ldrh r8, [r3, r8]\r |
9839d126 |
1801 | and r7, lr, r7, lsr #23\r |
499a0be3 |
1802 | \r |
1803 | subs r2, r2, #1\r |
9839d126 |
1804 | orr r12,r12,r8, lsl #16\r |
1805 | ldrh r8, [r3, r7]\r |
1806 | \r |
1807 | stmia r0!, {r4,r5,r6,r12}\r |
499a0be3 |
1808 | bne .fl_loopRGB555u\r |
1809 | \r |
1810 | strh r8, [r0], #2\r |
1811 | \r |
d01fa204 |
1812 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1813 | bx lr\r |
1814 | \r |
1815 | \r |
1816 | .fl_32scale_RGB555u:\r |
9839d126 |
1817 | sub r0, r0, #2 @ initial adjustment\r |
1818 | mov r4, #0\r |
499a0be3 |
1819 | \r |
1820 | @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1821 | .fl_loop32scale_RGB555u:\r |
1822 | ldr r12, [r1], #4\r |
1823 | ldr r7, [r1], #4\r |
1824 | \r |
9839d126 |
1825 | and r6, lr, r12,lsl #1\r |
1826 | ldrh r6, [r3, r6]\r |
499a0be3 |
1827 | and r5, lr, r12,lsr #7\r |
1828 | ldrh r5, [r3, r5]\r |
9839d126 |
1829 | and r6, r6, r9, lsl #2\r |
1830 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
499a0be3 |
1831 | \r |
1832 | and r5, r5, r9, lsl #2\r |
9839d126 |
1833 | sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1\r |
1834 | add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)\r |
1835 | orr r5, r6, r5, lsl #15\r |
499a0be3 |
1836 | \r |
1837 | and r6, lr, r12,lsr #15\r |
1838 | ldrh r6, [r3, r6]\r |
1839 | and r12,lr, r12,lsr #23\r |
1840 | ldrh r12,[r3, r12]\r |
1841 | and r6, r6, r9, lsl #2\r |
9839d126 |
1842 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
499a0be3 |
1843 | \r |
9839d126 |
1844 | and r8, lr, r7, lsl #1\r |
1845 | ldrh r8, [r3, r8]\r |
1846 | and r10,lr, r7, lsr #7\r |
1847 | ldrh r10,[r3, r10]\r |
499a0be3 |
1848 | and r12,r12,r9, lsl #2\r |
9839d126 |
1849 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1850 | add r6, r6, r12,lsr #2\r |
1851 | orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4\r |
499a0be3 |
1852 | \r |
9839d126 |
1853 | and r8, r8, r9, lsl #2\r |
1854 | and r10,r10,r9, lsl #2\r |
1855 | sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5\r |
1856 | orr r8, r8, r8, lsl #14\r |
1857 | add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6\r |
1858 | and r12,lr, r7, lsr #15\r |
499a0be3 |
1859 | ldrh r12,[r3, r12]\r |
499a0be3 |
1860 | and r7, lr, r7, lsr #23\r |
1861 | ldrh r7, [r3, r7]\r |
9839d126 |
1862 | and r12,r12,r9, lsl #2\r |
1863 | add r10,r10,r12\r |
1864 | mov r10,r10, lsr #1\r |
1865 | sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6\r |
1866 | orr r10,r10,r12,lsl #16\r |
499a0be3 |
1867 | and r7, r7, r9, lsl #2\r |
9839d126 |
1868 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
499a0be3 |
1869 | \r |
1870 | subs r2, r2, #1\r |
1871 | \r |
1872 | stmia r0!, {r4,r5,r6,r8,r10}\r |
9839d126 |
1873 | mov r4, r7\r |
499a0be3 |
1874 | bne .fl_loop32scale_RGB555u\r |
1875 | \r |
9839d126 |
1876 | strh r4, [r0], #2\r |
1877 | \r |
d01fa204 |
1878 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1879 | bx lr\r |
1880 | \r |
f62850ba |
1881 | #endif /* UNALIGNED_DRAWLINEDEST */\r |
499a0be3 |
1882 | \r |
cc68a136 |
1883 | \r |
1884 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1885 | \r |
1886 | @ utility\r |
1887 | .global blockcpy @ void *dst, void *src, size_t n\r |
1888 | \r |
1889 | blockcpy:\r |
1890 | stmfd sp!, {r4,r5}\r |
1891 | mov r2, r2, lsr #4\r |
1892 | blockcpy_loop:\r |
1893 | ldmia r1!, {r3-r5,r12}\r |
1894 | subs r2, r2, #1\r |
1895 | stmia r0!, {r3-r5,r12}\r |
1896 | bne blockcpy_loop\r |
1897 | ldmfd sp!, {r4,r5}\r |
1898 | bx lr\r |
1899 | \r |
1900 | \r |
1901 | .global blockcpy_or @ void *dst, void *src, size_t n, int pat\r |
1902 | \r |
1903 | blockcpy_or:\r |
1904 | stmfd sp!, {r4-r6}\r |
1905 | orr r3, r3, r3, lsl #8\r |
1906 | orr r3, r3, r3, lsl #16\r |
1907 | mov r2, r2, lsr #4\r |
1908 | blockcpy_loop_or:\r |
1909 | ldmia r1!, {r4-r6,r12}\r |
1910 | subs r2, r2, #1\r |
1911 | orr r4, r4, r3\r |
1912 | orr r5, r5, r3\r |
1913 | orr r6, r6, r3\r |
1914 | orr r12,r12,r3\r |
1915 | stmia r0!, {r4-r6,r12}\r |
1916 | bne blockcpy_loop_or\r |
1917 | ldmfd sp!, {r4-r6}\r |
1918 | bx lr\r |
1919 | \r |
cff531af |
1920 | @ vim:filetype=armasm\r |