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1 | /*\r |
2 | * assembly optimized versions of most funtions from draw.c\r |
3 | * (C) notaz, 2006-2010\r |
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 | .extern Pico\r |
12 | .extern PicoOpt\r |
13 | .extern HighCol\r |
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14 | .extern DrawScanline\r |
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15 | .extern HighSprZ\r |
16 | .extern rendstatus\r |
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17 | .extern HighPreSpr\r |
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18 | .extern DrawLineDest\r |
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19 | .extern DrawStripInterlace\r |
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20 | .extern HighCacheS_ptr\r |
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21 | \r |
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22 | .equiv OVERRIDE_HIGHCOL, 1\r |
23 | \r |
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24 | .equ PDRAW_SPRITES_MOVED, (1<<0)\r |
25 | .equ PDRAW_WND_DIFF_PRIO, (1<<1)\r |
26 | .equ PDRAW_ACC_SPRITES, (1<<2)\r |
27 | .equ PDRAW_DIRTY_SPRITES, (1<<4)\r |
28 | .equ PDRAW_PLANE_HI_PRIO, (1<<6)\r |
29 | .equ PDRAW_SHHI_DONE, (1<<7)\r |
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30 | \r |
31 | @ helper\r |
32 | .macro TilePixel pat lsrr offs\r |
33 | .if !\lsrr\r |
34 | ands r4, \pat, r2\r |
35 | .else\r |
36 | ands r4, \pat, r2, lsr #\lsrr\r |
37 | .endif\r |
38 | orrne r4, r3, r4\r |
39 | strneb r4, [r1,#\offs]\r |
40 | .endm\r |
41 | \r |
42 | @ TileNorm (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
43 | .macro TileNorm pat\r |
44 | TilePixel \pat, 12, 0 @ #0x0000f000\r |
45 | TilePixel \pat, 8, 1 @ #0x00000f00\r |
46 | TilePixel \pat, 4, 2 @ #0x000000f0\r |
47 | TilePixel \pat, 0, 3 @ #0x0000000f\r |
48 | TilePixel \pat, 28, 4 @ #0xf0000000\r |
49 | TilePixel \pat, 24, 5 @ #0x0f000000\r |
50 | TilePixel \pat, 20, 6 @ #0x00f00000\r |
51 | TilePixel \pat, 16, 7 @ #0x000f0000\r |
52 | .endm\r |
53 | \r |
54 | @ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
55 | .macro TileFlip pat\r |
56 | TilePixel \pat, 16, 0 @ #0x000f0000\r |
57 | TilePixel \pat, 20, 1 @ #0x00f00000\r |
58 | TilePixel \pat, 24, 2 @ #0x0f000000\r |
59 | TilePixel \pat, 28, 3 @ #0xf0000000\r |
60 | TilePixel \pat, 0, 4 @ #0x0000000f\r |
61 | TilePixel \pat, 4, 5 @ #0x000000f0\r |
62 | TilePixel \pat, 8, 6 @ #0x00000f00\r |
63 | TilePixel \pat, 12, 7 @ #0x0000f000\r |
64 | .endm\r |
65 | \r |
66 | @ shadow/hilight mode\r |
67 | \r |
68 | @ this one is for hi priority layer\r |
69 | .macro TilePixelShHP lsrr offs\r |
70 | .if !\lsrr\r |
71 | ands r4, r12, r2\r |
72 | .else\r |
73 | ands r4, r12, r2, lsr #\lsrr\r |
74 | .endif\r |
75 | ldreqb r4, [r1,#\offs]\r |
76 | orrne r4, r3, r4\r |
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77 | andeq r4, r4, #0xbf\r |
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78 | strb r4, [r1,#\offs]\r |
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79 | .endm\r |
80 | \r |
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81 | @ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits\r |
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82 | .macro TileNormShHP\r |
83 | TilePixelShHP 12, 0 @ #0x0000f000\r |
84 | TilePixelShHP 8, 1 @ #0x00000f00\r |
85 | TilePixelShHP 4, 2 @ #0x000000f0\r |
86 | TilePixelShHP 0, 3 @ #0x0000000f\r |
87 | TilePixelShHP 28, 4 @ #0xf0000000\r |
88 | TilePixelShHP 24, 5 @ #0x0f000000\r |
89 | TilePixelShHP 20, 6 @ #0x00f00000\r |
90 | TilePixelShHP 16, 7 @ #0x000f0000\r |
91 | .endm\r |
92 | \r |
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93 | @ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
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94 | .macro TileFlipShHP\r |
95 | TilePixelShHP 16, 0 @ #0x000f0000\r |
96 | TilePixelShHP 20, 1 @ #0x00f00000\r |
97 | TilePixelShHP 24, 2 @ #0x0f000000\r |
98 | TilePixelShHP 28, 3 @ #0xf0000000\r |
99 | TilePixelShHP 0, 4 @ #0x0000000f\r |
100 | TilePixelShHP 4, 5 @ #0x000000f0\r |
101 | TilePixelShHP 8, 6 @ #0x00000f00\r |
102 | TilePixelShHP 12, 7 @ #0x0000f000\r |
103 | .endm\r |
104 | \r |
105 | \r |
106 | @ TileSingleSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx; r12: helper pattern 0xf\r |
107 | .macro TileSingleSh\r |
108 | tst r0, #1 @ not aligned?\r |
109 | mov r7, #0x00c000\r |
110 | orr r7, r7, #0xc0\r |
111 | ldrneb r4, [r1]\r |
112 | ldreqh r4, [r1]\r |
113 | orr r4, r4, r7\r |
114 | strneb r4, [r1], #1\r |
115 | streqh r4, [r1], #2\r |
116 | ldrh r4, [r1]\r |
117 | orr r4, r4, r7\r |
118 | strh r4, [r1], #2\r |
119 | ldrh r4, [r1]\r |
120 | orr r4, r4, r7\r |
121 | strh r4, [r1], #2\r |
122 | ldrh r4, [r1]\r |
123 | orr r4, r4, r7\r |
124 | strh r4, [r1], #2\r |
125 | ldrneb r4, [r1]\r |
126 | orr r4, r4, r7\r |
127 | strneb r4, [r1], #1\r |
128 | .endm\r |
129 | \r |
130 | @ TileSingleHi (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
131 | .macro TileSingleHi\r |
132 | tst r1, #1 @ not aligned?\r |
133 | mov r7, #0x008000\r |
134 | orr r7, r7, #0x80\r |
135 | ldrneb r4, [r1], #1\r |
136 | ldreqh r4, [r1], #2 @ 1ci\r |
137 | ldrh r12, [r1], #2\r |
138 | bic r4, r4, r7, lsr #1\r |
139 | orr r4, r4, r7\r |
140 | strneb r4, [r1, #-3]\r |
141 | streqh r4, [r1, #-4]\r |
142 | ldrh r4, [r1], #2\r |
143 | bic r12, r12, r7, lsr #1\r |
144 | orr r12, r12, r7\r |
145 | strh r12, [r1, #-4]\r |
146 | ldrh r12, [r1], #2\r |
147 | bic r4, r4, r7, lsr #1\r |
148 | orr r4, r4, r7\r |
149 | strh r4, [r1, #-4]\r |
150 | ldrneb r4, [r1]\r |
151 | bic r12, r12, r7, lsr #1\r |
152 | orr r12, r12, r7\r |
153 | strh r12, [r1, #-2]\r |
154 | bicne r4, r4, r7, lsr #1\r |
155 | orrne r4, r4, r7\r |
156 | strneb r4, [r1], #1\r |
157 | mov r12, #0xf\r |
158 | .endm\r |
159 | \r |
160 | .macro TileDoShGenPixel shift ofs\r |
161 | .if \shift\r |
162 | ands r4, r12, r2, lsr #\shift\r |
163 | .else\r |
164 | ands r4, r12, r2\r |
165 | .endif\r |
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166 | beq 0f\r |
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167 | cmp r4, #0xe\r |
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168 | ldrgeb r7, [r1,#\ofs]\r |
169 | orrlt r7, r3, r4 @ normal\r |
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170 | \r |
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171 | bicge r7, r7, #0xc0\r |
172 | orrge r7, r7, r4, lsl #6\r |
173 | strb r7, [r1,#\ofs]\r |
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174 | 0:\r |
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175 | .endm\r |
176 | \r |
177 | @ TileFlipSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
178 | .macro TileFlipSh\r |
179 | TileDoShGenPixel 16, 0 @ #0x000f0000\r |
180 | TileDoShGenPixel 20, 1 @ #0x00f00000\r |
181 | TileDoShGenPixel 24, 2 @ #0x0f000000\r |
182 | TileDoShGenPixel 28, 3 @ #0xf0000000\r |
183 | TileDoShGenPixel 0, 4 @ #0x0000000f\r |
184 | TileDoShGenPixel 4, 5 @ #0x000000f0\r |
185 | TileDoShGenPixel 8, 6 @ #0x00000f00\r |
186 | TileDoShGenPixel 12, 7 @ #0x0000f000\r |
187 | .endm\r |
188 | \r |
189 | @ TileNormSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
190 | .macro TileNormSh\r |
191 | TileDoShGenPixel 12, 0 @ #0x0000f000\r |
192 | TileDoShGenPixel 8, 1 @ #0x00000f00\r |
193 | TileDoShGenPixel 4, 2 @ #0x000000f0\r |
194 | TileDoShGenPixel 0, 3 @ #0x0000000f\r |
195 | TileDoShGenPixel 28, 4 @ #0xf0000000\r |
196 | TileDoShGenPixel 24, 5 @ #0x0f000000\r |
197 | TileDoShGenPixel 20, 6 @ #0x00f00000\r |
198 | TileDoShGenPixel 16, 7 @ #0x000f0000\r |
199 | .endm\r |
200 | \r |
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201 | .macro TileDoShGenPixel_markop shift ofs\r |
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202 | .if \shift\r |
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203 | ands r4, r12, r2, lsr #\shift\r |
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204 | .else\r |
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205 | ands r4, r12, r2\r |
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206 | .endif\r |
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207 | beq 0f\r |
208 | cmp r4, #0xe\r |
209 | ldrgeb r4, [r1,#\ofs]\r |
210 | orrlt r4, r3, r4\r |
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211 | orrge r4, r4, #0x80\r |
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212 | strb r4, [r1,#\ofs]\r |
213 | 0:\r |
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214 | .endm\r |
215 | \r |
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216 | .macro TileFlipSh_markop\r |
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217 | TileDoShGenPixel_markop 16, 0 @ #0x000f0000\r |
218 | TileDoShGenPixel_markop 20, 1 @ #0x00f00000\r |
219 | TileDoShGenPixel_markop 24, 2 @ #0x0f000000\r |
220 | TileDoShGenPixel_markop 28, 3 @ #0xf0000000\r |
221 | TileDoShGenPixel_markop 0, 4 @ #0x0000000f\r |
222 | TileDoShGenPixel_markop 4, 5 @ #0x000000f0\r |
223 | TileDoShGenPixel_markop 8, 6 @ #0x00000f00\r |
224 | TileDoShGenPixel_markop 12, 7 @ #0x0000f000\r |
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225 | .endm\r |
226 | \r |
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227 | .macro TileNormSh_markop\r |
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228 | TileDoShGenPixel_markop 12, 0 @ #0x0000f000\r |
229 | TileDoShGenPixel_markop 8, 1 @ #0x00000f00\r |
230 | TileDoShGenPixel_markop 4, 2 @ #0x000000f0\r |
231 | TileDoShGenPixel_markop 0, 3 @ #0x0000000f\r |
232 | TileDoShGenPixel_markop 28, 4 @ #0xf0000000\r |
233 | TileDoShGenPixel_markop 24, 5 @ #0x0f000000\r |
234 | TileDoShGenPixel_markop 20, 6 @ #0x00f00000\r |
235 | TileDoShGenPixel_markop 16, 7 @ #0x000f0000\r |
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236 | .endm\r |
237 | \r |
238 | .macro TileDoShGenPixel_onlyop_lp shift ofs\r |
239 | .if \shift\r |
240 | ands r7, r12, r2, lsr #\shift\r |
241 | .else\r |
242 | ands r7, r12, r2\r |
243 | .endif\r |
244 | ldrneb r4, [r1,#\ofs]\r |
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245 | cmp r7, #0xe\r |
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246 | blt 0f\r |
247 | \r |
248 | tst r4, #0xc0\r |
249 | bicne r4, r4, #0xc0\r |
250 | orrne r4, r4, r7, lsl #6\r |
251 | strneb r4, [r1,#\ofs]\r |
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252 | 0:\r |
253 | .endm\r |
254 | \r |
255 | .macro TileFlipSh_onlyop_lp\r |
256 | TileDoShGenPixel_onlyop_lp 16, 0 @ #0x000f0000\r |
257 | TileDoShGenPixel_onlyop_lp 20, 1 @ #0x00f00000\r |
258 | TileDoShGenPixel_onlyop_lp 24, 2 @ #0x0f000000\r |
259 | TileDoShGenPixel_onlyop_lp 28, 3 @ #0xf0000000\r |
260 | TileDoShGenPixel_onlyop_lp 0, 4 @ #0x0000000f\r |
261 | TileDoShGenPixel_onlyop_lp 4, 5 @ #0x000000f0\r |
262 | TileDoShGenPixel_onlyop_lp 8, 6 @ #0x00000f00\r |
263 | TileDoShGenPixel_onlyop_lp 12, 7 @ #0x0000f000\r |
264 | .endm\r |
265 | \r |
266 | .macro TileNormSh_onlyop_lp\r |
267 | TileDoShGenPixel_onlyop_lp 12, 0 @ #0x0000f000\r |
268 | TileDoShGenPixel_onlyop_lp 8, 1 @ #0x00000f00\r |
269 | TileDoShGenPixel_onlyop_lp 4, 2 @ #0x000000f0\r |
270 | TileDoShGenPixel_onlyop_lp 0, 3 @ #0x0000000f\r |
271 | TileDoShGenPixel_onlyop_lp 28, 4 @ #0xf0000000\r |
272 | TileDoShGenPixel_onlyop_lp 24, 5 @ #0x0f000000\r |
273 | TileDoShGenPixel_onlyop_lp 20, 6 @ #0x00f00000\r |
274 | TileDoShGenPixel_onlyop_lp 16, 7 @ #0x000f0000\r |
275 | .endm\r |
276 | \r |
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277 | \r |
278 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
279 | \r |
280 | @ struct TileStrip\r |
281 | @ {\r |
282 | @ int nametab; // 0x00\r |
283 | @ int line; // 0x04\r |
284 | @ int hscroll; // 0x08\r |
285 | @ int xmask; // 0x0C\r |
286 | @ int *hc; // 0x10 (pointer to cache buffer)\r |
287 | @ int cells; // 0x14\r |
288 | @ };\r |
289 | \r |
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290 | @ void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r |
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291 | \r |
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292 | .global DrawLayer\r |
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293 | \r |
294 | DrawLayer:\r |
295 | stmfd sp!, {r4-r11,lr}\r |
296 | \r |
297 | ldr r11, =(Pico+0x22228) @ Pico.video\r |
298 | mov r8, #1\r |
299 | \r |
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300 | ldrb r7, [r11, #16] @ ??vv??hh\r |
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301 | \r |
302 | mov r6, r1 @ hcache\r |
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303 | orr r9, r3, r0, lsl #30\r |
304 | orr r9, r9, r2, lsl #8 @ r9=sh[31]|cellskip[15:8]|maxcells[7:0] (tmp)\r |
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305 | \r |
306 | mov r1, r7, lsl #4\r |
307 | orr r1, r1, #0x00ff\r |
308 | \r |
309 | and r10, r7, #3\r |
310 | cmp r10, #1\r |
311 | biclt r1, r1, #0xfc00\r |
312 | biceq r1, r1, #0xfe00\r |
313 | bicgt r1, r1, #0xff00 @ r1=ymask=(height<<8)|0xff; ...; // Y Mask in pixels\r |
314 | \r |
315 | add r10, r10, #5\r |
316 | cmp r10, #7\r |
317 | subge r10, r10, #1 @ r10=shift[width] (5,6,6,7)\r |
318 | \r |
319 | @ calculate xmask:\r |
320 | mov r5, r8, lsl r10\r |
321 | sub r5, r5, #1 @ r5=xmask\r |
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 | ldr r2, =DrawScanline @ trying to make good use of pipeline here\r |
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329 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
330 | \r |
331 | moveq r12, r12, lsl #10\r |
332 | movne r12, r12, lsl #13\r |
333 | and r12, r12, #(7<<13) @ r12=(ts->nametab<<1) (halfword compliant)\r |
334 | \r |
335 | ldrh r8, [r11, #12]\r |
336 | ldrb r7, [r11, #11]\r |
337 | ldr r2, [r2]\r |
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 |
507 | ldreq r1, =rendstatus\r |
cc68a136 |
508 | mov r0, #0\r |
740da8c6 |
509 | ldreq r2, [r1]\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 |
740da8c6 |
512 | streq r2, [r1]\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 |
b6d7ac70 |
525 | ldr r4, =DrawScanline\r |
6d7acf9e |
526 | orr r5, r1, r10, lsl #24\r |
527 | ldr r4, [r4]\r |
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 |
740da8c6 |
682 | ldreq r1, =rendstatus\r |
683 | mov r0, #0\r |
684 | ldreq r2, [r1]\r |
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 |
740da8c6 |
687 | streq r2, [r1]\r |
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 |
773 | \r |
7a7c6476 |
774 | .global DrawTilesFromCache @ int *hc, int sh, int rlim\r |
cc68a136 |
775 | \r |
776 | DrawTilesFromCache:\r |
777 | stmfd sp!, {r4-r8,r11,lr}\r |
778 | \r |
cc68a136 |
779 | @ cache some stuff to avoid mem access\r |
ea8c405f |
780 | .if OVERRIDE_HIGHCOL\r |
cc68a136 |
781 | ldr r11,=HighCol\r |
cc68a136 |
782 | mov r12,#0xf\r |
ea8c405f |
783 | ldr r11,[r11]\r |
784 | .else\r |
785 | ldr r11,=HighCol\r |
786 | mov r12,#0xf\r |
787 | .endif\r |
788 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
cc68a136 |
789 | \r |
740da8c6 |
790 | mvn r5, #0 @ r5=prevcode=-1\r |
7a7c6476 |
791 | ands r8, r1, #1\r |
792 | orr r8, r8, r2, lsl #1\r |
740da8c6 |
793 | bne .dtfc_check_rendflags\r |
794 | \r |
cc68a136 |
795 | @ scratch: r4, r7\r |
796 | .dtfc_loop:\r |
797 | ldr r6, [r0], #4 @ read code\r |
798 | movs r1, r6, lsr #16 @ r1=dx;\r |
799 | ldmeqfd sp!, {r4-r8,r11,pc} @ dx is never zero, this must be a terminator, return\r |
7a7c6476 |
800 | bic r4, r1, #0xfe00\r |
801 | add r1, r11, r4 @ r1=pdest\r |
cc68a136 |
802 | \r |
803 | mov r7, r6, lsl #16\r |
804 | cmp r5, r7, lsr #16\r |
805 | beq .dtfc_samecode @ if (code==prevcode)\r |
806 | \r |
807 | mov r5, r7, lsr #16\r |
808 | \r |
809 | mov r2, r5, lsl #21\r |
810 | mov r2, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4;\r |
811 | add r2, r2, r6, lsr #25 @ addr+=ty\r |
812 | \r |
813 | and r3, r5, #0x6000\r |
814 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
815 | \r |
816 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
817 | \r |
818 | .dtfc_samecode:\r |
7a7c6476 |
819 | rsbs r4, r4, r8, lsr #1\r |
820 | bmi .dtfc_cut_tile\r |
821 | \r |
822 | tst r8, #1\r |
cc68a136 |
823 | bne .dtfc_shadow\r |
824 | \r |
825 | tst r2, r2\r |
826 | beq .dtfc_loop\r |
827 | \r |
828 | cmp r2, r2, ror #4\r |
829 | beq .dtfc_SingleColor @ tileline singlecolor \r |
830 | \r |
831 | tst r5, #0x0800\r |
7a7c6476 |
832 | bne .dtfc_TileFlip\r |
cc68a136 |
833 | \r |
834 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
835 | .dtfc_TileNorm:\r |
836 | TileNorm r12\r |
837 | b .dtfc_loop\r |
838 | \r |
7a7c6476 |
839 | .dtfc_TileFlip:\r |
840 | TileFlip r12\r |
841 | b .dtfc_loop\r |
842 | \r |
cc68a136 |
843 | .dtfc_SingleColor:\r |
844 | and r4, r2, #0xf\r |
845 | orr r4, r3, r4\r |
846 | orr r4, r4, r4, lsl #8\r |
847 | tst r1, #1 @ not aligned?\r |
848 | strneb r4, [r1], #1\r |
849 | streqh r4, [r1], #2\r |
850 | strh r4, [r1], #2\r |
851 | strh r4, [r1], #2\r |
852 | strh r4, [r1], #2\r |
853 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
854 | b .dtfc_loop\r |
855 | \r |
856 | .dtfc_shadow:\r |
857 | tst r2, r2\r |
858 | beq .dtfc_shadow_blank\r |
859 | \r |
860 | cmp r2, r2, ror #4\r |
861 | beq .dtfc_SingleColor @ tileline singlecolor \r |
862 | \r |
863 | tst r5, #0x0800\r |
7a7c6476 |
864 | bne .dtfc_TileFlipShHP\r |
cc68a136 |
865 | \r |
866 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
867 | .dtfc_TileNormShHP:\r |
868 | TileNormShHP\r |
869 | b .dtfc_loop\r |
870 | \r |
7a7c6476 |
871 | .dtfc_TileFlipShHP:\r |
872 | TileFlipShHP\r |
873 | b .dtfc_loop\r |
874 | \r |
cc68a136 |
875 | .dtfc_shadow_blank:\r |
07abbab1 |
876 | tst r1, #1\r |
877 | ldrneb r4, [r1]\r |
bfa12428 |
878 | mov r6, #0xbf\r |
879 | and r4, r4, #0xbf\r |
07abbab1 |
880 | strneb r4, [r1], #1\r |
881 | ldrh r4, [r1]\r |
882 | orr r6, r6, r6, lsl #8\r |
883 | and r4, r4, r6\r |
884 | strh r4, [r1], #2\r |
885 | ldrh r4, [r1]\r |
886 | and r4, r4, r6\r |
887 | strh r4, [r1], #2\r |
888 | ldrh r4, [r1]\r |
889 | and r4, r4, r6\r |
890 | strh r4, [r1], #2\r |
891 | ldrh r4, [r1]\r |
892 | and r4, r4, r6\r |
893 | streqh r4, [r1]\r |
894 | strneb r4, [r1]\r |
cc68a136 |
895 | b .dtfc_loop\r |
896 | \r |
7a7c6476 |
897 | .dtfc_cut_tile:\r |
898 | add r4, r4, #7 @ 0-6\r |
899 | mov r4, r4, lsl #2\r |
900 | mov r12,#0xf<<28\r |
901 | mov r12,r12,asr r4\r |
902 | mov r2, r2, ror #16\r |
903 | tst r5, #0x0800 @ flipped?\r |
904 | mvnne r12,r12\r |
905 | and r2, r2, r12\r |
906 | mov r2, r2, ror #16\r |
907 | mov r12,#0xf\r |
908 | tst r8, #1\r |
909 | bne .dtfc_shadow\r |
910 | tst r2, r2\r |
911 | beq .dtfc_loop\r |
912 | tst r5, #0x0800\r |
913 | beq .dtfc_TileNorm\r |
914 | b .dtfc_TileFlip\r |
915 | \r |
740da8c6 |
916 | @ check if we have detected layer covered with hi-prio tiles:\r |
917 | .dtfc_check_rendflags:\r |
918 | ldr r1, =rendstatus\r |
919 | ldr r2, [r1]\r |
283fec1b |
920 | tst r2, #(PDRAW_PLANE_HI_PRIO|PDRAW_SHHI_DONE)\r |
740da8c6 |
921 | beq .dtfc_loop\r |
7a7c6476 |
922 | bic r8, r8, #1 @ sh/hi mode off\r |
283fec1b |
923 | tst r2, #PDRAW_SHHI_DONE\r |
740da8c6 |
924 | bne .dtfc_loop @ already processed\r |
283fec1b |
925 | orr r2, r2, #PDRAW_SHHI_DONE\r |
740da8c6 |
926 | str r2, [r1]\r |
927 | \r |
928 | add r1, r11,#8\r |
07abbab1 |
929 | mov r3, #320/4/4\r |
bfa12428 |
930 | mov r6, #0xbf\r |
740da8c6 |
931 | orr r6, r6, r6, lsl #8\r |
932 | orr r6, r6, r6, lsl #16\r |
933 | .dtfc_loop_shprep:\r |
07abbab1 |
934 | ldmia r1, {r2,r4,r5,r7}\r |
740da8c6 |
935 | subs r3, r3, #1\r |
07abbab1 |
936 | and r2, r2, r6\r |
937 | and r4, r4, r6\r |
938 | and r5, r5, r6\r |
939 | and r7, r7, r6\r |
940 | stmia r1!,{r2,r4,r5,r7}\r |
941 | bne .dtfc_loop_shprep\r |
942 | \r |
943 | mvn r5, #0 @ r5=prevcode=-1\r |
944 | b .dtfc_loop\r |
740da8c6 |
945 | \r |
cc68a136 |
946 | .pool\r |
947 | \r |
948 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
949 | \r |
950 | \r |
fbc65db7 |
951 | .global DrawSpritesSHi @ unsigned char *sprited\r |
e352c3af |
952 | \r |
953 | DrawSpritesSHi:\r |
fbc65db7 |
954 | ldr r3, [r0]\r |
955 | mov r12,#0xff\r |
e352c3af |
956 | ands r3, r3, #0x7f\r |
957 | bxeq lr\r |
cc68a136 |
958 | \r |
cc68a136 |
959 | stmfd sp!, {r4-r11,lr}\r |
fbc65db7 |
960 | strb r12,[r0,#2] @ set end marker\r |
961 | add r10,r0, #3 @ r10=HighLnSpr end\r |
e352c3af |
962 | add r10,r10,r3 @ r10=HighLnSpr end\r |
963 | \r |
ea8c405f |
964 | .if OVERRIDE_HIGHCOL\r |
cc68a136 |
965 | ldr r11,=HighCol\r |
ea8c405f |
966 | mov r12,#0xf\r |
967 | ldr r11,[r11]\r |
968 | .else\r |
969 | ldr r11,=HighCol\r |
970 | mov r12,#0xf\r |
971 | .endif\r |
cc68a136 |
972 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
cc68a136 |
973 | \r |
cc68a136 |
974 | \r |
e352c3af |
975 | DrawSpriteSHi:\r |
976 | @ draw next sprite\r |
977 | ldrb r0, [r10,#-1]!\r |
978 | ldr r1, =HighPreSpr\r |
fbc65db7 |
979 | @ ldr r8, [sp, #-4]\r |
e352c3af |
980 | cmp r0, #0xff\r |
981 | ldmeqfd sp!, {r4-r11,pc} @ end of list\r |
982 | and r0, r0, #0x7f\r |
983 | add r0, r1, r0, lsl #3\r |
984 | \r |
985 | ldr r9, [r0, #4] @ sprite[1]\r |
986 | mov r2, r9, asr #16 @ r2=sx\r |
cc68a136 |
987 | \r |
e352c3af |
988 | mov r9, r9, lsl #16\r |
989 | mov r3, r9, lsr #31 @ priority\r |
990 | mov r9, r9, lsr #16\r |
fbc65db7 |
991 | @ orr r9, r9, r8, lsl #31 @ r9=code|sh[31] @@ sh is always on here now\r |
e352c3af |
992 | and r4, r9, #0x6000\r |
993 | orr r9, r9, r4, lsl #16\r |
fbc65db7 |
994 | orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
e352c3af |
995 | cmp r12,r9, lsr #28 @ sh/hi with pal3?\r |
e54507e8 |
996 | cmpne r3, #1 @ if not, is it hi prio?\r |
e352c3af |
997 | bne DrawSpriteSHi @ non-operator low sprite, already drawn\r |
cc68a136 |
998 | \r |
e352c3af |
999 | ldr r3, [r0] @ sprite[0]\r |
1000 | ldr r7, =DrawScanline\r |
1001 | mov r6, r3, lsr #28\r |
1002 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
1003 | mov r5, r3, lsr #24\r |
1004 | and r5, r5, #7 @ r5=height\r |
cc68a136 |
1005 | \r |
e352c3af |
1006 | mov r0, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
cc68a136 |
1007 | \r |
e352c3af |
1008 | ldr r7, [r7]\r |
1009 | sub r7, r7, r0, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1010 | \r |
e352c3af |
1011 | tst r9, #0x1000\r |
1012 | movne r0, r5, lsl #3\r |
1013 | subne r0, r0, #1\r |
1014 | subne r7, r0, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
cc68a136 |
1015 | \r |
e352c3af |
1016 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
1017 | tst r9, #0x0800\r |
1018 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1019 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
cc68a136 |
1020 | \r |
e352c3af |
1021 | mov r8, r8, lsl #21\r |
1022 | mov r8, r8, lsr #17\r |
1023 | and r7, r7, #7\r |
1024 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1025 | \r |
1026 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
e352c3af |
1027 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
1028 | \r |
1029 | add r6, r6, #1 @ inc now\r |
1030 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1031 | b .dsprShi_loop_enter\r |
1032 | \r |
1033 | .dsprShi_loop:\r |
1034 | subs r6, r6, #1 @ width--\r |
1035 | beq DrawSpriteSHi\r |
1036 | adds r0, r0, #8 @ sx+=8\r |
1037 | add r8, r8, r5 @ tile+=delta\r |
1038 | \r |
1039 | .dsprShi_loop_enter:\r |
1040 | ble .dsprShi_loop @ sx <= 0\r |
cc68a136 |
1041 | cmp r0, #328\r |
e352c3af |
1042 | bge DrawSpriteSHi\r |
cc68a136 |
1043 | \r |
1044 | mov r8, r8, lsl #17\r |
e352c3af |
1045 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
cc68a136 |
1046 | \r |
e352c3af |
1047 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1048 | add r1, r11, r0 @ r1=pdest\r |
cc68a136 |
1049 | tst r2, r2\r |
e352c3af |
1050 | beq .dsprShi_loop\r |
cc68a136 |
1051 | \r |
e352c3af |
1052 | cmp r12, r9, lsr #28\r |
1053 | beq .dsprShi_shadow\r |
cc68a136 |
1054 | \r |
1055 | cmp r2, r2, ror #4\r |
e352c3af |
1056 | beq .dsprShi_SingleColor @ tileline singlecolor \r |
cc68a136 |
1057 | \r |
e352c3af |
1058 | tst r9, #0x0800\r |
1059 | bne .dsprShi_TileFlip\r |
cc68a136 |
1060 | \r |
e352c3af |
1061 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
1062 | @ scratch: r4, r7\r |
1063 | .dsprShi_TileNorm:\r |
cc68a136 |
1064 | TileNorm r12\r |
e352c3af |
1065 | b .dsprShi_loop\r |
cc68a136 |
1066 | \r |
e352c3af |
1067 | .dsprShi_TileFlip:\r |
7a7c6476 |
1068 | TileFlip r12\r |
e352c3af |
1069 | b .dsprShi_loop\r |
7a7c6476 |
1070 | \r |
e352c3af |
1071 | .dsprShi_SingleColor:\r |
cc68a136 |
1072 | and r4, r2, #0xf\r |
1073 | orr r4, r3, r4\r |
1074 | orr r4, r4, r4, lsl #8\r |
e352c3af |
1075 | tst r0, #1 @ not aligned?\r |
cc68a136 |
1076 | strneb r4, [r1], #1\r |
1077 | streqh r4, [r1], #2\r |
1078 | strh r4, [r1], #2\r |
1079 | strh r4, [r1], #2\r |
1080 | strh r4, [r1], #2\r |
1081 | strneb r4, [r1], #1\r |
e352c3af |
1082 | b .dsprShi_loop\r |
cc68a136 |
1083 | \r |
e352c3af |
1084 | .dsprShi_shadow:\r |
1085 | tst r9, #0x8000\r |
1086 | beq .dsprShi_shadow_lowpri\r |
07abbab1 |
1087 | \r |
cc68a136 |
1088 | cmp r2, r2, ror #4\r |
e352c3af |
1089 | beq .dsprShi_singlec_sh\r |
cc68a136 |
1090 | \r |
e352c3af |
1091 | tst r9, #0x0800\r |
1092 | bne .dsprShi_TileFlip_sh\r |
cc68a136 |
1093 | \r |
e54507e8 |
1094 | @ (r1=pdest, r2=pixels8, r3=pal) r4, r7: scratch, r12: helper pattern\r |
e352c3af |
1095 | .dsprShi_TileNorm_sh:\r |
cc68a136 |
1096 | TileNormSh\r |
e352c3af |
1097 | b .dsprShi_loop\r |
cc68a136 |
1098 | \r |
e352c3af |
1099 | .dsprShi_TileFlip_sh:\r |
7a7c6476 |
1100 | TileFlipSh\r |
e352c3af |
1101 | b .dsprShi_loop\r |
7a7c6476 |
1102 | \r |
e352c3af |
1103 | .dsprShi_singlec_sh:\r |
cc68a136 |
1104 | cmp r2, #0xe0000000\r |
e352c3af |
1105 | bcc .dsprShi_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
cc68a136 |
1106 | tst r2, #0x10000000\r |
e352c3af |
1107 | bne .dsprShi_sh_sh\r |
cc68a136 |
1108 | TileSingleHi\r |
e352c3af |
1109 | b .dsprShi_loop\r |
cc68a136 |
1110 | \r |
e352c3af |
1111 | .dsprShi_sh_sh:\r |
cc68a136 |
1112 | TileSingleSh\r |
e352c3af |
1113 | b .dsprShi_loop\r |
cc68a136 |
1114 | \r |
e352c3af |
1115 | .dsprShi_shadow_lowpri:\r |
1116 | tst r9, #0x800\r |
1117 | bne .dsprShi_TileFlip_sh_lp\r |
07abbab1 |
1118 | \r |
e352c3af |
1119 | .dsprShi_TileNorm_sh_lp:\r |
07abbab1 |
1120 | TileNormSh_onlyop_lp\r |
e352c3af |
1121 | b .dsprShi_loop\r |
07abbab1 |
1122 | \r |
e352c3af |
1123 | .dsprShi_TileFlip_sh_lp:\r |
07abbab1 |
1124 | TileFlipSh_onlyop_lp\r |
e352c3af |
1125 | b .dsprShi_loop\r |
07abbab1 |
1126 | \r |
cc68a136 |
1127 | .pool\r |
1128 | \r |
1129 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1130 | \r |
fbc65db7 |
1131 | .global DrawAllSprites @ unsigned char *sprited, int prio, int sh\r |
283fec1b |
1132 | \r |
1133 | DrawAllSprites:\r |
1134 | ldr r3, =rendstatus\r |
fbc65db7 |
1135 | orr r1, r2, r1, lsl #1\r |
283fec1b |
1136 | ldr r12,[r3]\r |
0fc0e241 |
1137 | tst r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
283fec1b |
1138 | beq das_no_prep\r |
fbc65db7 |
1139 | stmfd sp!, {r0,r1,lr}\r |
283fec1b |
1140 | and r0, r12,#PDRAW_DIRTY_SPRITES\r |
0fc0e241 |
1141 | bic r12,r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
283fec1b |
1142 | str r12,[r3]\r |
1143 | bl PrepareSprites\r |
fbc65db7 |
1144 | ldmfd sp!, {r0,r1,lr}\r |
283fec1b |
1145 | \r |
1146 | das_no_prep:\r |
fbc65db7 |
1147 | ldr r3, [r0]\r |
283fec1b |
1148 | ands r3, r3, #0x7f\r |
283fec1b |
1149 | bxeq lr\r |
1150 | \r |
1151 | @ time to do some real work\r |
1152 | stmfd sp!, {r4-r11,lr}\r |
283fec1b |
1153 | mov r12,#0xff\r |
fbc65db7 |
1154 | strb r12,[r0,#2] @ set end marker\r |
1155 | add r10,r0, #3\r |
283fec1b |
1156 | add r10,r10,r3 @ r10=HighLnSpr end\r |
1157 | \r |
97a7f774 |
1158 | str r1, [sp, #-4] @ no calls after this point\r |
283fec1b |
1159 | \r |
1160 | .if OVERRIDE_HIGHCOL\r |
1161 | ldr r11,=HighCol\r |
1162 | mov r12,#0xf\r |
1163 | ldr r11,[r11]\r |
1164 | .else\r |
1165 | ldr r11,=HighCol\r |
1166 | mov r12,#0xf\r |
1167 | .endif\r |
1168 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
1169 | \r |
1170 | @ + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size\r |
cc68a136 |
1171 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1172 | \r |
283fec1b |
1173 | DrawSprite: @ was: unsigned int *sprite, int sh, int acc_sprites\r |
1174 | @ draw next sprite\r |
1175 | ldrb r0, [r10,#-1]!\r |
1176 | ldr r1, =HighPreSpr\r |
283fec1b |
1177 | ldr r8, [sp, #-4]\r |
e352c3af |
1178 | mov r2, r0, lsr #7\r |
1179 | cmp r0, #0xff\r |
1180 | ldmeqfd sp!, {r4-r11,pc} @ end of list\r |
97a7f774 |
1181 | cmp r2, r8, lsr #1\r |
e352c3af |
1182 | bne DrawSprite @ wrong priority\r |
283fec1b |
1183 | and r0, r0, #0x7f\r |
1184 | add r0, r1, r0, lsl #3\r |
cc68a136 |
1185 | \r |
283fec1b |
1186 | @ stmfd sp!, {r4-r9,r11,lr}\r |
1187 | @ orr r8, r2, r1, lsl #4\r |
cc68a136 |
1188 | \r |
1189 | ldr r3, [r0] @ sprite[0]\r |
b6d7ac70 |
1190 | ldr r7, =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 |
1198 | ldr r7, [r7]\r |
1199 | ldr r9, [r0, #4]\r |
b6d7ac70 |
1200 | sub r7, r7, r4, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1201 | \r |
cc68a136 |
1202 | mov r2, r9, asr #16 @ r2=sx\r |
e5fa9817 |
1203 | mov r9, r9, lsl #16\r |
1204 | mov r9, r9, lsr #16\r |
97a7f774 |
1205 | orr r9, r9, r8, lsl #31 @ r9=code|sh[31]\r |
cc68a136 |
1206 | \r |
1207 | tst r9, #0x1000\r |
1208 | movne r4, r5, lsl #3\r |
1209 | subne r4, r4, #1\r |
1210 | subne r7, r4, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
1211 | \r |
07abbab1 |
1212 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
cc68a136 |
1213 | tst r9, #0x0800\r |
1214 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1215 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
1216 | \r |
07abbab1 |
1217 | mov r8, r8, lsl #21\r |
1218 | mov r8, r8, lsr #17\r |
cc68a136 |
1219 | and r7, r7, #7\r |
1220 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1221 | \r |
e5fa9817 |
1222 | .dspr_continue:\r |
cc68a136 |
1223 | @ cache some stuff to avoid mem access\r |
cc68a136 |
1224 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
1225 | and r4, r9, #0x6000\r |
1226 | orr r9, r9, r4, lsl #16\r |
97a7f774 |
1227 | orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
cc68a136 |
1228 | \r |
cc68a136 |
1229 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
97a7f774 |
1230 | orrmi r3, r3, #0x40 @ for sh/hi\r |
cc68a136 |
1231 | \r |
1232 | add r6, r6, #1 @ inc now\r |
1233 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1234 | b .dspr_loop_enter\r |
1235 | \r |
1236 | .dspr_loop:\r |
1237 | subs r6, r6, #1 @ width--\r |
283fec1b |
1238 | beq DrawSprite\r |
cc68a136 |
1239 | adds r0, r0, #8 @ sx+=8\r |
1240 | add r8, r8, r5 @ tile+=delta\r |
1241 | \r |
1242 | .dspr_loop_enter:\r |
1243 | ble .dspr_loop @ sx <= 0\r |
1244 | cmp r0, #328\r |
283fec1b |
1245 | bge DrawSprite\r |
cc68a136 |
1246 | \r |
1247 | mov r8, r8, lsl #17\r |
1248 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
1249 | \r |
1250 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1251 | add r1, r11, r0 @ r1=pdest\r |
1252 | tst r2, r2\r |
1253 | beq .dspr_loop\r |
1254 | \r |
1255 | cmp r12, r9, lsr #28\r |
1256 | beq .dspr_shadow\r |
1257 | \r |
1258 | cmp r2, r2, ror #4\r |
1259 | beq .dspr_SingleColor @ tileline singlecolor \r |
1260 | \r |
1261 | tst r9, #0x0800\r |
7a7c6476 |
1262 | bne .dspr_TileFlip\r |
cc68a136 |
1263 | \r |
1264 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1265 | @ scratch: r4, r7\r |
1266 | .dspr_TileNorm:\r |
1267 | TileNorm r12\r |
1268 | b .dspr_loop\r |
1269 | \r |
7a7c6476 |
1270 | .dspr_TileFlip:\r |
1271 | TileFlip r12\r |
1272 | b .dspr_loop\r |
1273 | \r |
07abbab1 |
1274 | .dspr_singlec_sh:\r |
1275 | cmp r2, #0xe0000000\r |
e54507e8 |
1276 | bcs .dspr_TileNorm_sh @ op. tileline, markop. XXX: maybe add a spec. handler?\r |
07abbab1 |
1277 | \r |
cc68a136 |
1278 | .dspr_SingleColor:\r |
1279 | and r4, r2, #0xf\r |
1280 | orr r4, r3, r4\r |
1281 | orr r4, r4, r4, lsl #8\r |
1282 | tst r0, #1 @ not aligned?\r |
1283 | strneb r4, [r1], #1\r |
1284 | streqh r4, [r1], #2\r |
1285 | strh r4, [r1], #2\r |
1286 | strh r4, [r1], #2\r |
1287 | strh r4, [r1], #2\r |
1288 | strneb r4, [r1], #1\r |
1289 | b .dspr_loop\r |
1290 | \r |
1291 | .dspr_shadow:\r |
1292 | cmp r2, r2, ror #4\r |
1293 | beq .dspr_singlec_sh\r |
1294 | \r |
1295 | tst r9, #0x0800\r |
7a7c6476 |
1296 | bne .dspr_TileFlip_sh\r |
cc68a136 |
1297 | \r |
1298 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1299 | .dspr_TileNorm_sh:\r |
e54507e8 |
1300 | TileNormSh_markop\r |
cc68a136 |
1301 | b .dspr_loop\r |
1302 | \r |
7a7c6476 |
1303 | .dspr_TileFlip_sh:\r |
e54507e8 |
1304 | TileFlipSh_markop\r |
cc68a136 |
1305 | b .dspr_loop\r |
1306 | \r |
1307 | \r |
cc68a136 |
1308 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1309 | \r |
1310 | .global DrawWindow @ int tstart, int tend, int prio, int sh // int *hcache\r |
1311 | \r |
1312 | DrawWindow:\r |
1313 | stmfd sp!, {r4-r11,lr}\r |
1314 | \r |
1315 | ldr r11, =(Pico+0x22228) @ Pico.video\r |
b6d7ac70 |
1316 | ldr r10, =DrawScanline\r |
cc68a136 |
1317 | ldrb r12, [r11, #3] @ pvid->reg[3]\r |
1318 | \r |
1319 | ldr r10, [r10]\r |
1320 | ldr r4, [r11, #12]\r |
1321 | mov r5, r10, lsr #3\r |
1322 | and r10, r10, #7\r |
1323 | mov r10, r10, lsl #1 @ r10=ty\r |
1324 | \r |
1325 | mov r12, r12, lsl #10\r |
1326 | \r |
1327 | tst r4, #1 @ 40 cell mode?\r |
1328 | andne r12, r12, #0xf000 @ 0x3c<<10\r |
1329 | andeq r12, r12, #0xf800\r |
1330 | addne r12, r12, r5, lsl #7\r |
1331 | addeq r12, r12, r5, lsl #6 @ nametab\r |
1332 | add r12, r12, r0, lsl #2 @ +starttile\r |
1333 | \r |
1334 | ldr r6, =rendstatus\r |
0fc0e241 |
1335 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
07abbab1 |
1336 | ldr r6, [r6]\r |
cc68a136 |
1337 | \r |
1338 | @ fetch the first code now\r |
1339 | ldrh r7, [lr, r12]\r |
1340 | \r |
283fec1b |
1341 | ands r6, r6, #PDRAW_WND_DIFF_PRIO\r |
cc68a136 |
1342 | orr r6, r6, r2\r |
cc68a136 |
1343 | \r |
7292c709 |
1344 | eoreq r8, r2, r7, lsr #15 @ do prio bits differ?\r |
1345 | cmpeq r8, #1\r |
1346 | ldmeqfd sp!, {r4-r11,pc} @ yes, assume that whole window uses same priority\r |
cc68a136 |
1347 | \r |
cc68a136 |
1348 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
1349 | \r |
1350 | sub r8, r1, r0\r |
cc68a136 |
1351 | \r |
1352 | @ cache some stuff to avoid mem access\r |
ea8c405f |
1353 | .if OVERRIDE_HIGHCOL\r |
1354 | ldr r11,=HighCol\r |
1355 | mov r8, r8, lsl #1 @ cells\r |
1356 | ldr r11,[r11]\r |
1357 | mvn r9, #0 @ r9=prevcode=-1\r |
1358 | add r11,r11,#8\r |
1359 | .else\r |
cc68a136 |
1360 | ldr r11,=(HighCol+8)\r |
ea8c405f |
1361 | mov r8, r8, lsl #1 @ cells\r |
1362 | mvn r9, #0 @ r9=prevcode=-1\r |
1363 | .endif\r |
07abbab1 |
1364 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
cc68a136 |
1365 | mov r0, #0xf\r |
1366 | b .dwloop_enter\r |
1367 | \r |
07abbab1 |
1368 | @ r4,r5 are scratch in this loop\r |
cc68a136 |
1369 | .dwloop:\r |
1370 | add r1, r1, #8\r |
1371 | .dwloop_nor1:\r |
1372 | add r12, r12, #2 @ halfwords\r |
1373 | ldrh r7, [lr, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
1374 | subs r8, r8, #1\r |
1375 | beq .dwloop_end @ done\r |
1376 | \r |
1377 | eor r5, r6, r7, lsr #15\r |
1378 | tst r5, #1\r |
1379 | orrne r6, r6, #2 @ wrong pri\r |
1380 | bne .dwloop\r |
1381 | \r |
1382 | cmp r7, r9\r |
1383 | beq .dw_samecode @ we know stuff about this tile already\r |
1384 | \r |
1385 | .dwloop_enter:\r |
1386 | mov r9, r7 @ remember code\r |
1387 | \r |
1388 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
1389 | mov r2, r2, lsl #1\r |
1390 | add r2, r10, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4; addr+=ty\r |
1391 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
1392 | \r |
1393 | and r3, r9, #0x6000\r |
1394 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
1395 | \r |
1396 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1397 | \r |
1398 | .dw_samecode:\r |
1399 | tst r6, #0x100\r |
1400 | bne .dw_shadow\r |
1401 | .dw_shadow_done:\r |
1402 | tst r2, r2\r |
1403 | beq .dwloop @ tileline blank\r |
1404 | \r |
1405 | cmp r2, r2, ror #4\r |
1406 | beq .dw_SingleColor @ tileline singlecolor \r |
1407 | \r |
1408 | tst r9, #0x0800\r |
7a7c6476 |
1409 | bne .dw_TileFlip\r |
cc68a136 |
1410 | \r |
1411 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
1412 | .dw_TileNorm:\r |
1413 | TileNorm r0\r |
1414 | b .dwloop\r |
1415 | \r |
7a7c6476 |
1416 | .dw_TileFlip:\r |
1417 | TileFlip r0\r |
1418 | b .dwloop\r |
1419 | \r |
cc68a136 |
1420 | .dw_SingleColor:\r |
1421 | and r4, r0, r2 @ #0x0000000f\r |
1422 | orr r4, r3, r4\r |
1423 | orr r4, r4, r4, lsl #8\r |
1424 | orr r4, r4, r4, lsl #16\r |
1425 | mov r5, r4\r |
1426 | stmia r1!, {r4,r5}\r |
1427 | b .dwloop_nor1 @ we incremeted r1 ourselves\r |
1428 | \r |
1429 | .dw_shadow:\r |
1430 | tst r6, #1 @ hi pri?\r |
1431 | orreq r3, r3, #0x40\r |
1432 | beq .dw_shadow_done\r |
1433 | ldr r4, [r1]\r |
07abbab1 |
1434 | mov r5, #0x3f\r |
1435 | orr r5, r5, r5, lsl #8\r |
1436 | orr r5, r5, r5, lsl #16\r |
1437 | and r4, r4, r5\r |
cc68a136 |
1438 | str r4, [r1]\r |
1439 | ldr r4, [r1,#4]\r |
07abbab1 |
1440 | and r4, r4, r5\r |
cc68a136 |
1441 | str r4, [r1,#4]\r |
1442 | b .dw_shadow_done\r |
1443 | \r |
1444 | .dwloop_end:\r |
1445 | ldr r0, =rendstatus\r |
1446 | ldr r1, [r0]\r |
0fc0e241 |
1447 | and r6, r6, #PDRAW_WND_DIFF_PRIO\r |
cc68a136 |
1448 | orr r1, r1, r6\r |
1449 | str r1, [r0]\r |
1450 | \r |
1451 | ldmfd sp!, {r4-r11,r12}\r |
1452 | bx r12\r |
1453 | \r |
1454 | \r |
1455 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1456 | \r |
1457 | \r |
1458 | @ hilights 2 pixels in RGB444/BGR444 format\r |
1459 | .macro TileDoShHi2Pixels444 reg\r |
1460 | mov \reg, \reg, ror #12\r |
1461 | adds \reg, \reg, #0x40000000\r |
1462 | orrcs \reg, \reg, #0xf0000000\r |
1463 | mov \reg, \reg, ror #28\r |
1464 | adds \reg, \reg, #0x40000000\r |
1465 | orrcs \reg, \reg, #0xf0000000\r |
1466 | mov \reg, \reg, ror #28\r |
1467 | adds \reg, \reg, #0x40000000\r |
1468 | orrcs \reg, \reg, #0xf0000000\r |
1469 | mov \reg, \reg, ror #24\r |
1470 | adds \reg, \reg, #0x40000000\r |
1471 | orrcs \reg, \reg, #0xf0000000\r |
1472 | mov \reg, \reg, ror #28\r |
1473 | adds \reg, \reg, #0x40000000\r |
1474 | orrcs \reg, \reg, #0xf0000000\r |
1475 | mov \reg, \reg, ror #28\r |
1476 | adds \reg, \reg, #0x40000000\r |
1477 | orrcs \reg, \reg, #0xf0000000\r |
1478 | mov \reg, \reg, ror #12\r |
1479 | .endm\r |
1480 | \r |
1481 | \r |
1482 | .global FinalizeLineBGR444 @ int sh\r |
1483 | \r |
1484 | FinalizeLineBGR444:\r |
1485 | stmfd sp!, {r4-r6,lr}\r |
1486 | mov r6, r0\r |
1487 | ldr lr, =(Pico+0x22228) @ Pico.video\r |
1488 | ldr r0, =DrawLineDest\r |
1489 | ldrb r12, [lr, #12]\r |
1490 | ldr r0, [r0]\r |
1491 | sub r3, lr, #0x128 @ r3=Pico.cram\r |
1492 | \r |
1493 | tst r12, #1\r |
1494 | movne r2, #320/4 @ len\r |
1495 | bne .fl_no32colBGR444\r |
1496 | ldr r4, =PicoOpt\r |
1497 | mov r2, #256/4\r |
1498 | ldr r4, [r4]\r |
1499 | tst r4, #0x100\r |
1500 | addeq r0, r0, #32*2\r |
1501 | \r |
1502 | .fl_no32colBGR444:\r |
1503 | tst r6, r6\r |
1504 | beq .fl_noshBGR444\r |
1505 | \r |
1506 | ldr r4, =HighPal\r |
1507 | \r |
1508 | ldrb r12, [lr, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1509 | tst r12, r12\r |
1510 | moveq r3, r4\r |
1511 | beq .fl_noshBGR444\r |
1512 | mov r12, #0\r |
1513 | strb r12, [lr, #-0x1a]\r |
1514 | \r |
1515 | mov lr, #0x40/8\r |
1516 | @ copy pal:\r |
1517 | .fl_loopcpBGR444:\r |
1518 | ldmia r3!, {r1,r5,r6,r12}\r |
1519 | subs lr, lr, #1\r |
1520 | stmia r4!, {r1,r5,r6,r12}\r |
1521 | bne .fl_loopcpBGR444\r |
1522 | \r |
1523 | @ shadowed pixels:\r |
1524 | mov r12, #0x0077\r |
1525 | orr r12,r12,#0x0700\r |
1526 | orr r12,r12,r12,lsl #16\r |
1527 | sub r3, r3, #0x40*2\r |
1528 | add r5, r4, #0x80*2\r |
1529 | mov lr, #0x40/4\r |
1530 | .fl_loopcpBGR444_sh:\r |
1531 | ldmia r3!, {r1,r6}\r |
1532 | subs lr, lr, #1\r |
1533 | and r1, r12, r1, lsr #1\r |
1534 | and r6, r12, r6, lsr #1\r |
1535 | stmia r4!, {r1,r6}\r |
1536 | stmia r5!, {r1,r6}\r |
1537 | bne .fl_loopcpBGR444_sh\r |
1538 | \r |
1539 | @ hilighted pixels:\r |
1540 | sub r3, r3, #0x40*2\r |
1541 | mov lr, #0x40/2\r |
1542 | .fl_loopcpBGR444_hi:\r |
1543 | ldr r1, [r3], #4\r |
1544 | TileDoShHi2Pixels444 r1\r |
1545 | str r1, [r4], #4\r |
1546 | subs lr, lr, #1\r |
1547 | bne .fl_loopcpBGR444_hi\r |
1548 | \r |
1549 | sub r3, r4, #0x40*3*2\r |
e5fa9817 |
1550 | mov r6, #1\r |
cc68a136 |
1551 | \r |
1552 | \r |
1553 | .fl_noshBGR444:\r |
e5fa9817 |
1554 | ldr r12,=rendstatus\r |
1555 | eors r6, r6, #1 @ sh is 0\r |
1556 | ldr r12,[r12]\r |
1557 | mov lr, #0xff\r |
283fec1b |
1558 | tstne r12,#PDRAW_ACC_SPRITES\r |
e5fa9817 |
1559 | \r |
ea8c405f |
1560 | .if OVERRIDE_HIGHCOL\r |
1561 | ldr r1, =HighCol\r |
e5fa9817 |
1562 | movne lr, #0x3f\r |
ea8c405f |
1563 | ldr r1, [r1]\r |
1564 | mov lr, lr, lsl #1\r |
1565 | add r1, r1, #8\r |
1566 | .else\r |
cc68a136 |
1567 | ldr r1, =(HighCol+8)\r |
e5fa9817 |
1568 | movne lr, #0x3f\r |
cc68a136 |
1569 | mov lr, lr, lsl #1\r |
ea8c405f |
1570 | .endif\r |
cc68a136 |
1571 | \r |
1572 | .fl_loopBGR444:\r |
cc68a136 |
1573 | ldr r12, [r1], #4\r |
1574 | subs r2, r2, #1\r |
1575 | \r |
1576 | and r4, lr, r12, lsl #1\r |
1577 | ldrh r4, [r3, r4]\r |
1578 | and r5, lr, r12, lsr #7\r |
1579 | ldrh r5, [r3, r5]\r |
1580 | and r6, lr, r12, lsr #15\r |
1581 | ldrh r6, [r3, r6]\r |
e5fa9817 |
1582 | and r12,lr, r12, lsr #23\r |
1583 | ldrh r12,[r3, r12] @ 1c.i.\r |
cc68a136 |
1584 | orr r4, r4, r5, lsl #16\r |
e5fa9817 |
1585 | orr r5, r6, r12,lsl #16\r |
cc68a136 |
1586 | \r |
1587 | stmia r0!, {r4,r5}\r |
1588 | bne .fl_loopBGR444\r |
1589 | \r |
1590 | \r |
1591 | ldmfd sp!, {r4-r6,lr}\r |
1592 | bx lr\r |
1593 | \r |
1594 | \r |
1595 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1596 | \r |
1597 | \r |
cc68a136 |
1598 | @ Convert 0000bbb0 ggg0rrr0\r |
1599 | @ to rrrrrggg gggbbbbb\r |
1600 | \r |
a39d8ba5 |
1601 | @ r2,r3 - scratch, lr = 0x001c001c, r8 = 0x08610861\r |
cc68a136 |
1602 | .macro convRGB565 reg\r |
a39d8ba5 |
1603 | and r2, lr, \reg,lsr #7 @ b\r |
1604 | and r3, lr, \reg,lsr #3 @ g\r |
1605 | and \reg, lr, \reg,lsl #1 @ r\r |
1606 | orr r2, r2, r3, lsl #6\r |
1607 | orr \reg, r2, \reg,lsl #11\r |
1608 | \r |
1609 | and r2, r8, \reg,lsr #4\r |
1610 | orr \reg, \reg, r2\r |
cc68a136 |
1611 | .endm\r |
1612 | \r |
a39d8ba5 |
1613 | @ trashes: r2-r8,r12,lr; r8 = 0x08610861; r0,r1 are advanced\r |
b2305d08 |
1614 | .macro vidConvCpyRGB565_local\r |
2ec14aec |
1615 | mov r12, r2, lsr #3 @ repeats\r |
cc68a136 |
1616 | mov lr, #0x001c0000\r |
1617 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
cc68a136 |
1618 | \r |
b2305d08 |
1619 | 0:\r |
cc68a136 |
1620 | ldmia r1!, {r4-r7}\r |
1621 | subs r12, r12, #1\r |
1622 | convRGB565 r4\r |
1623 | str r4, [r0], #4\r |
1624 | convRGB565 r5\r |
1625 | str r5, [r0], #4\r |
1626 | convRGB565 r6\r |
1627 | str r6, [r0], #4\r |
1628 | convRGB565 r7\r |
1629 | str r7, [r0], #4\r |
1630 | \r |
b2305d08 |
1631 | bgt 0b\r |
1632 | .endm\r |
1633 | \r |
1634 | \r |
1635 | .global vidConvCpyRGB565\r |
cc68a136 |
1636 | \r |
b2305d08 |
1637 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
1638 | stmfd sp!, {r4-r9,lr}\r |
a39d8ba5 |
1639 | mov r8, #0x0061\r |
1640 | orr r8, r8, #0x0800\r |
f4750ee0 |
1641 | orr r8, r8, r8, lsl #16\r |
b2305d08 |
1642 | vidConvCpyRGB565_local\r |
cc68a136 |
1643 | ldmfd sp!, {r4-r9,lr}\r |
1644 | bx lr\r |
1645 | \r |
1646 | \r |
b2305d08 |
1647 | .global PicoDoHighPal555 @ int sh\r |
cc68a136 |
1648 | \r |
b2305d08 |
1649 | PicoDoHighPal555:\r |
1650 | stmfd sp!, {r4-r9,lr}\r |
1651 | mov r1, #0\r |
3d48f143 |
1652 | ldr r8, =(Pico+0x22228) @ Pico.video\r |
cc68a136 |
1653 | \r |
b2305d08 |
1654 | PicoDoHighPal555_nopush:\r |
a39d8ba5 |
1655 | orr r9, r1, r0, lsl #31 @ 0:called from FinalizeLine555, 31: s/h\r |
b2305d08 |
1656 | \r |
b2305d08 |
1657 | ldr r0, =HighPal\r |
1658 | \r |
cc68a136 |
1659 | mov r1, #0\r |
b2305d08 |
1660 | strb r1, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1661 | \r |
3d48f143 |
1662 | sub r1, r8, #0x128 @ r1=Pico.cram\r |
cc68a136 |
1663 | mov r2, #0x40\r |
a39d8ba5 |
1664 | mov r8, #0x0061\r |
1665 | orr r8, r8, #0x0800\r |
f4750ee0 |
1666 | orr r8, r8, r8, lsl #16\r |
a39d8ba5 |
1667 | \r |
b2305d08 |
1668 | vidConvCpyRGB565_local\r |
cc68a136 |
1669 | \r |
a39d8ba5 |
1670 | tst r9, #(1<<31)\r |
b2305d08 |
1671 | beq PicoDoHighPal555_end\r |
1672 | \r |
1673 | ldr r3, =HighPal\r |
cc68a136 |
1674 | \r |
1675 | @ shadowed pixels:\r |
1676 | mov r12, #0x008e\r |
cc68a136 |
1677 | add r4, r3, #0x40*2\r |
b2305d08 |
1678 | orr r12,r12,#0x7300\r |
cc68a136 |
1679 | add r5, r3, #0xc0*2\r |
b2305d08 |
1680 | orr r12,r12,r12,lsl #16\r |
cc68a136 |
1681 | mov lr, #0x40/4\r |
1682 | .fl_loopcpRGB555_sh:\r |
1683 | ldmia r3!, {r1,r6}\r |
1684 | subs lr, lr, #1\r |
1685 | and r1, r12, r1, lsr #1\r |
1686 | and r6, r12, r6, lsr #1\r |
1687 | stmia r4!, {r1,r6}\r |
1688 | stmia r5!, {r1,r6}\r |
1689 | bne .fl_loopcpRGB555_sh\r |
1690 | \r |
1691 | @ hilighted pixels:\r |
a39d8ba5 |
1692 | @ t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e;\r |
1693 | @ t |= (t >> 4) & 0x08610861;\r |
1694 | @ r8=0x08610861\r |
cc68a136 |
1695 | sub r3, r3, #0x40*2\r |
a39d8ba5 |
1696 | mov lr, #0x40/4\r |
cc68a136 |
1697 | .fl_loopcpRGB555_hi:\r |
a39d8ba5 |
1698 | ldmia r3!, {r1,r6}\r |
1699 | and r1, r12, r1, lsr #1\r |
1700 | and r6, r12, r6, lsr #1\r |
1701 | add r1, r12, r1\r |
1702 | add r6, r12, r6\r |
1703 | and r5, r8, r1, lsr #4\r |
1704 | and r7, r8, r6, lsr #4\r |
1705 | orr r1, r1, r5\r |
1706 | orr r6, r6, r7\r |
1707 | stmia r4!, {r1,r6}\r |
cc68a136 |
1708 | subs lr, lr, #1\r |
1709 | bne .fl_loopcpRGB555_hi\r |
b2305d08 |
1710 | mov r0, #1\r |
cc68a136 |
1711 | \r |
b2305d08 |
1712 | PicoDoHighPal555_end:\r |
a39d8ba5 |
1713 | tst r9, #1\r |
b2305d08 |
1714 | ldmeqfd sp!, {r4-r9,pc}\r |
1715 | \r |
1716 | ldr r8, =(Pico+0x22228) @ Pico.video\r |
1717 | b FinalizeLineRGB555_pal_done\r |
1718 | \r |
1719 | \r |
5a681086 |
1720 | .global FinalizeLine555 @ int sh\r |
b2305d08 |
1721 | \r |
5a681086 |
1722 | FinalizeLine555:\r |
b2305d08 |
1723 | stmfd sp!, {r4-r9,lr}\r |
1724 | ldr r8, =(Pico+0x22228) @ Pico.video\r |
1725 | \r |
1726 | ldrb r2, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1727 | mov r1, #1\r |
1728 | tst r2, r2\r |
1729 | bne PicoDoHighPal555_nopush\r |
1730 | \r |
1731 | FinalizeLineRGB555_pal_done:\r |
1732 | ldr r3, =HighPal\r |
cc68a136 |
1733 | \r |
e5fa9817 |
1734 | ldr r12,=rendstatus\r |
b2305d08 |
1735 | eors r0, r0, #1 @ sh is 0\r |
e5fa9817 |
1736 | ldr r12,[r12]\r |
1737 | mov lr, #0xff\r |
283fec1b |
1738 | tstne r12,#PDRAW_ACC_SPRITES\r |
e5fa9817 |
1739 | movne lr, #0x3f\r |
1740 | \r |
ea8c405f |
1741 | .if OVERRIDE_HIGHCOL\r |
1742 | ldr r1, =HighCol\r |
1743 | ldr r0, =DrawLineDest\r |
1744 | ldr r1, [r1]\r |
1745 | ldr r0, [r0]\r |
1746 | add r1, r1, #8\r |
1747 | .else\r |
3d48f143 |
1748 | ldr r0, =DrawLineDest\r |
cc68a136 |
1749 | ldr r1, =(HighCol+8)\r |
3d48f143 |
1750 | ldr r0, [r0]\r |
ea8c405f |
1751 | .endif\r |
3d48f143 |
1752 | \r |
1753 | ldrb r12, [r8, #12]\r |
cc68a136 |
1754 | mov lr, lr, lsl #1\r |
1755 | \r |
3d48f143 |
1756 | tst r12, #1\r |
1757 | movne r2, #320/8 @ len\r |
1758 | bne .fl_no32colRGB555\r |
1759 | ldr r4, =PicoOpt\r |
1760 | mov r2, #256/8\r |
1761 | ldr r4, [r4]\r |
1762 | tst r4, #0x4000\r |
1763 | bne .fl_32scale_RGB555\r |
1764 | tst r4, #0x0100\r |
1765 | addeq r0, r0, #32*2\r |
1766 | \r |
1767 | .fl_no32colRGB555:\r |
cc68a136 |
1768 | \r |
f62850ba |
1769 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1770 | @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r |
1771 | tst r0, #2\r |
1772 | bne .fl_RGB555u\r |
f62850ba |
1773 | #endif\r |
499a0be3 |
1774 | \r |
1775 | .fl_loopRGB555:\r |
cc68a136 |
1776 | ldr r12, [r1], #4\r |
1777 | ldr r7, [r1], #4\r |
1778 | \r |
1779 | and r4, lr, r12, lsl #1\r |
1780 | ldrh r4, [r3, r4]\r |
1781 | and r5, lr, r12, lsr #7\r |
1782 | ldrh r5, [r3, r5]\r |
1783 | and r6, lr, r12, lsr #15\r |
1784 | ldrh r6, [r3, r6]\r |
1785 | orr r4, r4, r5, lsl #16\r |
1786 | \r |
1787 | and r5, lr, r12, lsr #23\r |
1788 | ldrh r5, [r3, r5]\r |
1789 | and r8, lr, r7, lsl #1\r |
1790 | ldrh r8, [r3, r8]\r |
1791 | orr r5, r6, r5, lsl #16\r |
1792 | \r |
1793 | and r6, lr, r7, lsr #7\r |
1794 | ldrh r6, [r3, r6]\r |
1795 | and r12,lr, r7, lsr #15\r |
1796 | ldrh r12,[r3, r12]\r |
499a0be3 |
1797 | and r7, lr, r7, lsr #23\r |
1798 | ldrh r7, [r3, r7]\r |
cc68a136 |
1799 | orr r8, r8, r6, lsl #16\r |
1800 | \r |
cc68a136 |
1801 | subs r2, r2, #1\r |
499a0be3 |
1802 | orr r12,r12, r7, lsl #16\r |
cc68a136 |
1803 | \r |
1804 | stmia r0!, {r4,r5,r8,r12}\r |
1805 | bne .fl_loopRGB555\r |
1806 | \r |
b2305d08 |
1807 | ldmfd sp!, {r4-r9,lr}\r |
3d48f143 |
1808 | bx lr\r |
1809 | \r |
1810 | \r |
1811 | .fl_32scale_RGB555:\r |
b2305d08 |
1812 | stmfd sp!, {r10}\r |
3d48f143 |
1813 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1814 | orr r9, r9, #0x00e7\r |
1815 | \r |
f62850ba |
1816 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1817 | tst r0, #2\r |
1818 | bne .fl_32scale_RGB555u\r |
f62850ba |
1819 | #endif\r |
499a0be3 |
1820 | \r |
3d48f143 |
1821 | .fl_loop32scale_RGB555:\r |
1822 | ldr r12, [r1], #4\r |
1823 | ldr r7, [r1], #4\r |
cc68a136 |
1824 | \r |
3d48f143 |
1825 | and r4, lr, r12,lsl #1\r |
1826 | ldrh r4, [r3, r4]\r |
1827 | and r5, lr, r12,lsr #7\r |
1828 | ldrh r5, [r3, r5]\r |
1829 | and r4, r4, r9, lsl #2\r |
1830 | orr r4, r4, r4, lsl #14 @ r4[31:16] = 1/4 pix_s 0\r |
1831 | and r5, r5, r9, lsl #2\r |
1832 | sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r |
1833 | add r4, r4, r6, lsl #16 @ pix_d 0, 1\r |
1834 | and r6, lr, r12,lsr #15\r |
1835 | ldrh r6, [r3, r6]\r |
1836 | and r12,lr, r12,lsr #23\r |
1837 | ldrh r12,[r3, r12]\r |
1838 | and r6, r6, r9, lsl #2\r |
1839 | add r5, r5, r6\r |
1840 | mov r5, r5, lsr #1\r |
1841 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1842 | orr r5, r5, r6, lsl #16\r |
1843 | \r |
1844 | and r6, lr, r7, lsl #1\r |
1845 | ldrh r6, [r3, r6]\r |
1846 | and r12,r12,r9, lsl #2\r |
1847 | add r5, r5, r12,lsl #14 @ pix_d 2, 3\r |
1848 | and r6, r6, r9, lsl #2\r |
1849 | orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r |
1850 | \r |
1851 | and r12,lr, r7, lsr #7\r |
1852 | ldrh r12,[r3, r12]\r |
1853 | and r10,lr, r7, lsr #15\r |
1854 | ldrh r10,[r3, r10]\r |
1855 | and r12,r12,r9, lsl #2\r |
1856 | sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r |
1857 | add r8, r8, r6, lsr #18\r |
1858 | and r7, lr, r7, lsr #23\r |
1859 | ldrh r7, [r3, r7]\r |
1860 | and r10,r10,r9, lsl #2\r |
1861 | orr r8, r8, r10,lsl #15\r |
1862 | add r8, r8, r12,lsl #15 @ pix_d 6, 7\r |
1863 | sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r |
1864 | and r7, r7, r9, lsl #2\r |
1865 | add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r |
1866 | orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r |
1867 | \r |
1868 | subs r2, r2, #1\r |
1869 | \r |
1870 | stmia r0!, {r4,r5,r6,r8,r10}\r |
1871 | bne .fl_loop32scale_RGB555\r |
1872 | \r |
b2305d08 |
1873 | ldmfd sp!, {r10}\r |
1874 | ldmfd sp!, {r4-r9,lr}\r |
3d48f143 |
1875 | bx lr\r |
1876 | \r |
f62850ba |
1877 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1878 | @ unaligned versions of loops\r |
9839d126 |
1879 | @ warning: starts drawing 2bytes before dst\r |
499a0be3 |
1880 | \r |
1881 | .fl_RGB555u:\r |
9839d126 |
1882 | sub r0, r0, #2 @ initial adjustment\r |
1883 | mov r8, #0\r |
499a0be3 |
1884 | \r |
1885 | .fl_loopRGB555u:\r |
1886 | ldr r12, [r1], #4\r |
1887 | ldr r7, [r1], #4\r |
1888 | \r |
9839d126 |
1889 | and r6, lr, r12,lsl #1\r |
1890 | ldrh r6, [r3, r6]\r |
1891 | and r5, lr, r12,lsr #7\r |
499a0be3 |
1892 | ldrh r5, [r3, r5]\r |
9839d126 |
1893 | orr r4, r8, r6, lsl #16\r |
499a0be3 |
1894 | \r |
9839d126 |
1895 | and r6, lr, r12,lsr #15\r |
499a0be3 |
1896 | ldrh r6, [r3, r6]\r |
9839d126 |
1897 | and r8, lr, r12,lsr #23\r |
499a0be3 |
1898 | ldrh r8, [r3, r8]\r |
9839d126 |
1899 | orr r5, r5, r6, lsl #16\r |
499a0be3 |
1900 | \r |
9839d126 |
1901 | and r6, lr, r7, lsl #1\r |
499a0be3 |
1902 | ldrh r6, [r3, r6]\r |
9839d126 |
1903 | and r12,lr, r7, lsr #7\r |
499a0be3 |
1904 | ldrh r12,[r3, r12]\r |
9839d126 |
1905 | orr r6, r8, r6, lsl #16\r |
1906 | \r |
1907 | and r8, lr, r7, lsr #15\r |
499a0be3 |
1908 | ldrh r8, [r3, r8]\r |
9839d126 |
1909 | and r7, lr, r7, lsr #23\r |
499a0be3 |
1910 | \r |
1911 | subs r2, r2, #1\r |
9839d126 |
1912 | orr r12,r12,r8, lsl #16\r |
1913 | ldrh r8, [r3, r7]\r |
1914 | \r |
1915 | stmia r0!, {r4,r5,r6,r12}\r |
499a0be3 |
1916 | bne .fl_loopRGB555u\r |
1917 | \r |
1918 | strh r8, [r0], #2\r |
1919 | \r |
b2305d08 |
1920 | ldmfd sp!, {r4-r9,lr}\r |
499a0be3 |
1921 | bx lr\r |
1922 | \r |
1923 | \r |
1924 | .fl_32scale_RGB555u:\r |
9839d126 |
1925 | sub r0, r0, #2 @ initial adjustment\r |
1926 | mov r4, #0\r |
499a0be3 |
1927 | \r |
1928 | @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1929 | .fl_loop32scale_RGB555u:\r |
1930 | ldr r12, [r1], #4\r |
1931 | ldr r7, [r1], #4\r |
1932 | \r |
9839d126 |
1933 | and r6, lr, r12,lsl #1\r |
1934 | ldrh r6, [r3, r6]\r |
499a0be3 |
1935 | and r5, lr, r12,lsr #7\r |
1936 | ldrh r5, [r3, r5]\r |
9839d126 |
1937 | and r6, r6, r9, lsl #2\r |
1938 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
499a0be3 |
1939 | \r |
1940 | and r5, r5, r9, lsl #2\r |
9839d126 |
1941 | sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1\r |
1942 | add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)\r |
1943 | orr r5, r6, r5, lsl #15\r |
499a0be3 |
1944 | \r |
1945 | and r6, lr, r12,lsr #15\r |
1946 | ldrh r6, [r3, r6]\r |
1947 | and r12,lr, r12,lsr #23\r |
1948 | ldrh r12,[r3, r12]\r |
1949 | and r6, r6, r9, lsl #2\r |
9839d126 |
1950 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
499a0be3 |
1951 | \r |
9839d126 |
1952 | and r8, lr, r7, lsl #1\r |
1953 | ldrh r8, [r3, r8]\r |
1954 | and r10,lr, r7, lsr #7\r |
1955 | ldrh r10,[r3, r10]\r |
499a0be3 |
1956 | and r12,r12,r9, lsl #2\r |
9839d126 |
1957 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1958 | add r6, r6, r12,lsr #2\r |
1959 | orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4\r |
499a0be3 |
1960 | \r |
9839d126 |
1961 | and r8, r8, r9, lsl #2\r |
1962 | and r10,r10,r9, lsl #2\r |
1963 | sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5\r |
1964 | orr r8, r8, r8, lsl #14\r |
1965 | add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6\r |
1966 | and r12,lr, r7, lsr #15\r |
499a0be3 |
1967 | ldrh r12,[r3, r12]\r |
499a0be3 |
1968 | and r7, lr, r7, lsr #23\r |
1969 | ldrh r7, [r3, r7]\r |
9839d126 |
1970 | and r12,r12,r9, lsl #2\r |
1971 | add r10,r10,r12\r |
1972 | mov r10,r10, lsr #1\r |
1973 | sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6\r |
1974 | orr r10,r10,r12,lsl #16\r |
499a0be3 |
1975 | and r7, r7, r9, lsl #2\r |
9839d126 |
1976 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
499a0be3 |
1977 | \r |
1978 | subs r2, r2, #1\r |
1979 | \r |
1980 | stmia r0!, {r4,r5,r6,r8,r10}\r |
9839d126 |
1981 | mov r4, r7\r |
499a0be3 |
1982 | bne .fl_loop32scale_RGB555u\r |
1983 | \r |
9839d126 |
1984 | strh r4, [r0], #2\r |
1985 | \r |
b2305d08 |
1986 | ldmfd sp!, {r10}\r |
1987 | ldmfd sp!, {r4-r9,lr}\r |
499a0be3 |
1988 | bx lr\r |
1989 | \r |
f62850ba |
1990 | #endif /* UNALIGNED_DRAWLINEDEST */\r |
499a0be3 |
1991 | \r |
cc68a136 |
1992 | \r |
1993 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1994 | \r |
1995 | @ utility\r |
1996 | .global blockcpy @ void *dst, void *src, size_t n\r |
1997 | \r |
1998 | blockcpy:\r |
1999 | stmfd sp!, {r4,r5}\r |
2000 | mov r2, r2, lsr #4\r |
2001 | blockcpy_loop:\r |
2002 | ldmia r1!, {r3-r5,r12}\r |
2003 | subs r2, r2, #1\r |
2004 | stmia r0!, {r3-r5,r12}\r |
2005 | bne blockcpy_loop\r |
2006 | ldmfd sp!, {r4,r5}\r |
2007 | bx lr\r |
2008 | \r |
2009 | \r |
2010 | .global blockcpy_or @ void *dst, void *src, size_t n, int pat\r |
2011 | \r |
2012 | blockcpy_or:\r |
2013 | stmfd sp!, {r4-r6}\r |
2014 | orr r3, r3, r3, lsl #8\r |
2015 | orr r3, r3, r3, lsl #16\r |
2016 | mov r2, r2, lsr #4\r |
2017 | blockcpy_loop_or:\r |
2018 | ldmia r1!, {r4-r6,r12}\r |
2019 | subs r2, r2, #1\r |
2020 | orr r4, r4, r3\r |
2021 | orr r5, r5, r3\r |
2022 | orr r6, r6, r3\r |
2023 | orr r12,r12,r3\r |
2024 | stmia r0!, {r4-r6,r12}\r |
2025 | bne blockcpy_loop_or\r |
2026 | ldmfd sp!, {r4-r6}\r |
2027 | bx lr\r |
2028 | \r |
cff531af |
2029 | @ vim:filetype=armasm\r |