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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 DrawStripInterlace\r |
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14 | \r |
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15 | .equ PDRAW_SPRITES_MOVED, (1<<0)\r |
16 | .equ PDRAW_WND_DIFF_PRIO, (1<<1)\r |
17 | .equ PDRAW_ACC_SPRITES, (1<<2)\r |
18 | .equ PDRAW_DIRTY_SPRITES, (1<<4)\r |
19 | .equ PDRAW_PLANE_HI_PRIO, (1<<6)\r |
20 | .equ PDRAW_SHHI_DONE, (1<<7)\r |
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21 | \r |
22 | @ helper\r |
23 | .macro TilePixel pat lsrr offs\r |
24 | .if !\lsrr\r |
25 | ands r4, \pat, r2\r |
26 | .else\r |
27 | ands r4, \pat, r2, lsr #\lsrr\r |
28 | .endif\r |
29 | orrne r4, r3, r4\r |
30 | strneb r4, [r1,#\offs]\r |
31 | .endm\r |
32 | \r |
33 | @ TileNorm (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
34 | .macro TileNorm pat\r |
35 | TilePixel \pat, 12, 0 @ #0x0000f000\r |
36 | TilePixel \pat, 8, 1 @ #0x00000f00\r |
37 | TilePixel \pat, 4, 2 @ #0x000000f0\r |
38 | TilePixel \pat, 0, 3 @ #0x0000000f\r |
39 | TilePixel \pat, 28, 4 @ #0xf0000000\r |
40 | TilePixel \pat, 24, 5 @ #0x0f000000\r |
41 | TilePixel \pat, 20, 6 @ #0x00f00000\r |
42 | TilePixel \pat, 16, 7 @ #0x000f0000\r |
43 | .endm\r |
44 | \r |
45 | @ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
46 | .macro TileFlip pat\r |
47 | TilePixel \pat, 16, 0 @ #0x000f0000\r |
48 | TilePixel \pat, 20, 1 @ #0x00f00000\r |
49 | TilePixel \pat, 24, 2 @ #0x0f000000\r |
50 | TilePixel \pat, 28, 3 @ #0xf0000000\r |
51 | TilePixel \pat, 0, 4 @ #0x0000000f\r |
52 | TilePixel \pat, 4, 5 @ #0x000000f0\r |
53 | TilePixel \pat, 8, 6 @ #0x00000f00\r |
54 | TilePixel \pat, 12, 7 @ #0x0000f000\r |
55 | .endm\r |
56 | \r |
57 | @ shadow/hilight mode\r |
58 | \r |
59 | @ this one is for hi priority layer\r |
60 | .macro TilePixelShHP lsrr offs\r |
61 | .if !\lsrr\r |
62 | ands r4, r12, r2\r |
63 | .else\r |
64 | ands r4, r12, r2, lsr #\lsrr\r |
65 | .endif\r |
66 | ldreqb r4, [r1,#\offs]\r |
67 | orrne r4, r3, r4\r |
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68 | andeq r4, r4, #0xbf\r |
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69 | strb r4, [r1,#\offs]\r |
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70 | .endm\r |
71 | \r |
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72 | @ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits\r |
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73 | .macro TileNormShHP\r |
74 | TilePixelShHP 12, 0 @ #0x0000f000\r |
75 | TilePixelShHP 8, 1 @ #0x00000f00\r |
76 | TilePixelShHP 4, 2 @ #0x000000f0\r |
77 | TilePixelShHP 0, 3 @ #0x0000000f\r |
78 | TilePixelShHP 28, 4 @ #0xf0000000\r |
79 | TilePixelShHP 24, 5 @ #0x0f000000\r |
80 | TilePixelShHP 20, 6 @ #0x00f00000\r |
81 | TilePixelShHP 16, 7 @ #0x000f0000\r |
82 | .endm\r |
83 | \r |
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84 | @ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
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85 | .macro TileFlipShHP\r |
86 | TilePixelShHP 16, 0 @ #0x000f0000\r |
87 | TilePixelShHP 20, 1 @ #0x00f00000\r |
88 | TilePixelShHP 24, 2 @ #0x0f000000\r |
89 | TilePixelShHP 28, 3 @ #0xf0000000\r |
90 | TilePixelShHP 0, 4 @ #0x0000000f\r |
91 | TilePixelShHP 4, 5 @ #0x000000f0\r |
92 | TilePixelShHP 8, 6 @ #0x00000f00\r |
93 | TilePixelShHP 12, 7 @ #0x0000f000\r |
94 | .endm\r |
95 | \r |
96 | \r |
97 | @ TileSingleSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx; r12: helper pattern 0xf\r |
98 | .macro TileSingleSh\r |
99 | tst r0, #1 @ not aligned?\r |
100 | mov r7, #0x00c000\r |
101 | orr r7, r7, #0xc0\r |
102 | ldrneb r4, [r1]\r |
103 | ldreqh r4, [r1]\r |
104 | orr r4, r4, r7\r |
105 | strneb r4, [r1], #1\r |
106 | streqh r4, [r1], #2\r |
107 | ldrh r4, [r1]\r |
108 | orr r4, r4, r7\r |
109 | strh r4, [r1], #2\r |
110 | ldrh r4, [r1]\r |
111 | orr r4, r4, r7\r |
112 | strh r4, [r1], #2\r |
113 | ldrh r4, [r1]\r |
114 | orr r4, r4, r7\r |
115 | strh r4, [r1], #2\r |
116 | ldrneb r4, [r1]\r |
117 | orr r4, r4, r7\r |
118 | strneb r4, [r1], #1\r |
119 | .endm\r |
120 | \r |
121 | @ TileSingleHi (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
122 | .macro TileSingleHi\r |
123 | tst r1, #1 @ not aligned?\r |
124 | mov r7, #0x008000\r |
125 | orr r7, r7, #0x80\r |
126 | ldrneb r4, [r1], #1\r |
127 | ldreqh r4, [r1], #2 @ 1ci\r |
128 | ldrh r12, [r1], #2\r |
129 | bic r4, r4, r7, lsr #1\r |
130 | orr r4, r4, r7\r |
131 | strneb r4, [r1, #-3]\r |
132 | streqh r4, [r1, #-4]\r |
133 | ldrh r4, [r1], #2\r |
134 | bic r12, r12, r7, lsr #1\r |
135 | orr r12, r12, r7\r |
136 | strh r12, [r1, #-4]\r |
137 | ldrh r12, [r1], #2\r |
138 | bic r4, r4, r7, lsr #1\r |
139 | orr r4, r4, r7\r |
140 | strh r4, [r1, #-4]\r |
141 | ldrneb r4, [r1]\r |
142 | bic r12, r12, r7, lsr #1\r |
143 | orr r12, r12, r7\r |
144 | strh r12, [r1, #-2]\r |
145 | bicne r4, r4, r7, lsr #1\r |
146 | orrne r4, r4, r7\r |
147 | strneb r4, [r1], #1\r |
148 | mov r12, #0xf\r |
149 | .endm\r |
150 | \r |
151 | .macro TileDoShGenPixel shift ofs\r |
152 | .if \shift\r |
153 | ands r4, r12, r2, lsr #\shift\r |
154 | .else\r |
155 | ands r4, r12, r2\r |
156 | .endif\r |
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157 | beq 0f\r |
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158 | cmp r4, #0xe\r |
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159 | ldrgeb r7, [r1,#\ofs]\r |
160 | orrlt r7, r3, r4 @ normal\r |
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161 | \r |
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162 | bicge r7, r7, #0xc0\r |
163 | orrge r7, r7, r4, lsl #6\r |
164 | strb r7, [r1,#\ofs]\r |
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165 | 0:\r |
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166 | .endm\r |
167 | \r |
168 | @ TileFlipSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
169 | .macro TileFlipSh\r |
170 | TileDoShGenPixel 16, 0 @ #0x000f0000\r |
171 | TileDoShGenPixel 20, 1 @ #0x00f00000\r |
172 | TileDoShGenPixel 24, 2 @ #0x0f000000\r |
173 | TileDoShGenPixel 28, 3 @ #0xf0000000\r |
174 | TileDoShGenPixel 0, 4 @ #0x0000000f\r |
175 | TileDoShGenPixel 4, 5 @ #0x000000f0\r |
176 | TileDoShGenPixel 8, 6 @ #0x00000f00\r |
177 | TileDoShGenPixel 12, 7 @ #0x0000f000\r |
178 | .endm\r |
179 | \r |
180 | @ TileNormSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
181 | .macro TileNormSh\r |
182 | TileDoShGenPixel 12, 0 @ #0x0000f000\r |
183 | TileDoShGenPixel 8, 1 @ #0x00000f00\r |
184 | TileDoShGenPixel 4, 2 @ #0x000000f0\r |
185 | TileDoShGenPixel 0, 3 @ #0x0000000f\r |
186 | TileDoShGenPixel 28, 4 @ #0xf0000000\r |
187 | TileDoShGenPixel 24, 5 @ #0x0f000000\r |
188 | TileDoShGenPixel 20, 6 @ #0x00f00000\r |
189 | TileDoShGenPixel 16, 7 @ #0x000f0000\r |
190 | .endm\r |
191 | \r |
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192 | .macro TileDoShGenPixel_markop shift ofs\r |
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193 | .if \shift\r |
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194 | ands r4, r12, r2, lsr #\shift\r |
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195 | .else\r |
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196 | ands r4, r12, r2\r |
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197 | .endif\r |
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198 | beq 0f\r |
199 | cmp r4, #0xe\r |
200 | ldrgeb r4, [r1,#\ofs]\r |
201 | orrlt r4, r3, r4\r |
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202 | orrge r4, r4, #0x80\r |
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203 | strb r4, [r1,#\ofs]\r |
204 | 0:\r |
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205 | .endm\r |
206 | \r |
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207 | .macro TileFlipSh_markop\r |
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208 | TileDoShGenPixel_markop 16, 0 @ #0x000f0000\r |
209 | TileDoShGenPixel_markop 20, 1 @ #0x00f00000\r |
210 | TileDoShGenPixel_markop 24, 2 @ #0x0f000000\r |
211 | TileDoShGenPixel_markop 28, 3 @ #0xf0000000\r |
212 | TileDoShGenPixel_markop 0, 4 @ #0x0000000f\r |
213 | TileDoShGenPixel_markop 4, 5 @ #0x000000f0\r |
214 | TileDoShGenPixel_markop 8, 6 @ #0x00000f00\r |
215 | TileDoShGenPixel_markop 12, 7 @ #0x0000f000\r |
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216 | .endm\r |
217 | \r |
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218 | .macro TileNormSh_markop\r |
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219 | TileDoShGenPixel_markop 12, 0 @ #0x0000f000\r |
220 | TileDoShGenPixel_markop 8, 1 @ #0x00000f00\r |
221 | TileDoShGenPixel_markop 4, 2 @ #0x000000f0\r |
222 | TileDoShGenPixel_markop 0, 3 @ #0x0000000f\r |
223 | TileDoShGenPixel_markop 28, 4 @ #0xf0000000\r |
224 | TileDoShGenPixel_markop 24, 5 @ #0x0f000000\r |
225 | TileDoShGenPixel_markop 20, 6 @ #0x00f00000\r |
226 | TileDoShGenPixel_markop 16, 7 @ #0x000f0000\r |
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227 | .endm\r |
228 | \r |
229 | .macro TileDoShGenPixel_onlyop_lp shift ofs\r |
230 | .if \shift\r |
231 | ands r7, r12, r2, lsr #\shift\r |
232 | .else\r |
233 | ands r7, r12, r2\r |
234 | .endif\r |
235 | ldrneb r4, [r1,#\ofs]\r |
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236 | cmp r7, #0xe\r |
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237 | blt 0f\r |
238 | \r |
239 | tst r4, #0xc0\r |
240 | bicne r4, r4, #0xc0\r |
241 | orrne r4, r4, r7, lsl #6\r |
242 | strneb r4, [r1,#\ofs]\r |
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243 | 0:\r |
244 | .endm\r |
245 | \r |
246 | .macro TileFlipSh_onlyop_lp\r |
247 | TileDoShGenPixel_onlyop_lp 16, 0 @ #0x000f0000\r |
248 | TileDoShGenPixel_onlyop_lp 20, 1 @ #0x00f00000\r |
249 | TileDoShGenPixel_onlyop_lp 24, 2 @ #0x0f000000\r |
250 | TileDoShGenPixel_onlyop_lp 28, 3 @ #0xf0000000\r |
251 | TileDoShGenPixel_onlyop_lp 0, 4 @ #0x0000000f\r |
252 | TileDoShGenPixel_onlyop_lp 4, 5 @ #0x000000f0\r |
253 | TileDoShGenPixel_onlyop_lp 8, 6 @ #0x00000f00\r |
254 | TileDoShGenPixel_onlyop_lp 12, 7 @ #0x0000f000\r |
255 | .endm\r |
256 | \r |
257 | .macro TileNormSh_onlyop_lp\r |
258 | TileDoShGenPixel_onlyop_lp 12, 0 @ #0x0000f000\r |
259 | TileDoShGenPixel_onlyop_lp 8, 1 @ #0x00000f00\r |
260 | TileDoShGenPixel_onlyop_lp 4, 2 @ #0x000000f0\r |
261 | TileDoShGenPixel_onlyop_lp 0, 3 @ #0x0000000f\r |
262 | TileDoShGenPixel_onlyop_lp 28, 4 @ #0xf0000000\r |
263 | TileDoShGenPixel_onlyop_lp 24, 5 @ #0x0f000000\r |
264 | TileDoShGenPixel_onlyop_lp 20, 6 @ #0x00f00000\r |
265 | TileDoShGenPixel_onlyop_lp 16, 7 @ #0x000f0000\r |
266 | .endm\r |
267 | \r |
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268 | \r |
269 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
270 | \r |
271 | @ struct TileStrip\r |
272 | @ {\r |
273 | @ int nametab; // 0x00\r |
274 | @ int line; // 0x04\r |
275 | @ int hscroll; // 0x08\r |
276 | @ int xmask; // 0x0C\r |
277 | @ int *hc; // 0x10 (pointer to cache buffer)\r |
278 | @ int cells; // 0x14\r |
279 | @ };\r |
280 | \r |
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281 | @ void DrawLayer(int lflags, int *hcache, int cellskip, int maxcells,\r |
ea38612f |
282 | @ struct PicoEState *est)\r |
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283 | \r |
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284 | .global DrawLayer\r |
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285 | \r |
286 | DrawLayer:\r |
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287 | ldr r12, [sp] @ est\r |
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288 | stmfd sp!, {r4-r11,lr}\r |
289 | \r |
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290 | ldr r11, [r12, #OFS_EST_Pico]\r |
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291 | mov r8, #1\r |
292 | \r |
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293 | ldrb r7, [r11, #OFS_Pico_video_reg+16] @ ??vv??hh\r |
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294 | \r |
295 | mov r6, r1 @ hcache\r |
e0bcb7a9 |
296 | orr r9, r3, r0, lsl #29 @ r9=force[31]|sh[30]|plane[29]\r |
297 | orr r9, r9, r2, lsl #8 @ |cellskip[15:8]|maxcells[7:0] (tmp)\r |
cc68a136 |
298 | \r |
299 | mov r1, r7, lsl #4\r |
300 | orr r1, r1, #0x00ff\r |
301 | \r |
302 | and r10, r7, #3\r |
303 | cmp r10, #1\r |
304 | biclt r1, r1, #0xfc00\r |
305 | biceq r1, r1, #0xfe00\r |
eced0190 |
306 | cmp r10, #2\r |
307 | moveq r1, #0x0007\r |
308 | movgt r1, #0x00ff @ r1=ymask=(height<<8)|0xff; ...; // Y Mask in pixels\r |
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309 | \r |
310 | add r10, r10, #5\r |
311 | cmp r10, #7\r |
312 | subge r10, r10, #1 @ r10=shift[width] (5,6,6,7)\r |
313 | \r |
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314 | ldr r2, [r12, #OFS_EST_DrawScanline]\r |
315 | ldr lr, [r12, #OFS_EST_PicoMem_vram]\r |
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316 | \r |
317 | @ Find name table:\r |
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318 | ands r0, r0, #1\r |
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319 | ldreqb r12, [r11, #OFS_Pico_video_reg+2]\r |
320 | ldrneb r12, [r11, #OFS_Pico_video_reg+4]\r |
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321 | \r |
ea38612f |
322 | @ calculate xmask:\r |
323 | mov r5, r8, lsl r10\r |
324 | sub r5, r5, #1 @ r5=xmask\r |
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325 | \r |
326 | moveq r12, r12, lsl #10\r |
327 | movne r12, r12, lsl #13\r |
328 | and r12, r12, #(7<<13) @ r12=(ts->nametab<<1) (halfword compliant)\r |
329 | \r |
88fd63ad |
330 | ldrh r8, [r11, #OFS_Pico_video_reg+12]\r |
331 | ldrb r7, [r11, #OFS_Pico_video_reg+11]\r |
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332 | \r |
333 | mov r4, r8, lsr #8 @ pvid->reg[13]\r |
334 | mov r4, r4, lsl #10 @ htab=pvid->reg[13]<<9; (halfwords)\r |
335 | tst r7, #2\r |
b6d7ac70 |
336 | addne r4, r4, r2, lsl #2 @ htab+=DrawScanline<<1; // Offset by line\r |
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337 | tst r7, #1\r |
338 | biceq r4, r4, #0x1f @ htab&=~0xf; // Offset by tile\r |
339 | add r4, r4, r0, lsl #1 @ htab+=plane\r |
340 | bic r4, r4, #0x00ff0000 @ just in case\r |
341 | ldrh r3, [lr, r4] @ r3=hscroll\r |
342 | \r |
343 | tst r7, #4\r |
344 | bne .DrawStrip_vsscroll\r |
345 | \r |
346 | @ Get vertical scroll value:\r |
347 | add r7, lr, #0x012000\r |
88fd63ad |
348 | add r7, r7, #0x000180 @ r7=PicoMem.vsram (PicoMem+0x22180)\r |
cc68a136 |
349 | ldr r7, [r7]\r |
350 | \r |
351 | tst r8, #2\r |
352 | tstne r8, #4\r |
353 | bne .DrawStrip_interlace\r |
354 | \r |
355 | tst r0, r0\r |
356 | movne r7, r7, lsr #16\r |
357 | \r |
358 | @ Find the line in the name table\r |
359 | add r2, r2, r7\r |
360 | and r2, r2, r1\r |
361 | mov r4, r2, lsr #3\r |
362 | add r10, r10, #1 @ shift[width]++\r |
363 | add r12, r12, r4, lsl r10 @ nametab+=(ts.line>>3)<<shift[width];\r |
364 | \r |
365 | @ ldmia r0, {r1,r2,r3,r5,r6,r9} @ r2=line, r3=ts->hscroll, r5=ts->xmask, r6=ts->hc, r9=ts->cells\r |
cc68a136 |
366 | \r |
367 | and r10,r2, #7\r |
368 | mov r10,r10, lsl #1 @ r10=ty=(ts->line&7)<<1;\r |
369 | orr r10,r10, r9, lsl #24\r |
370 | \r |
371 | rsb r8, r3, #0\r |
372 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
373 | \r |
374 | sub r1, r3, #1\r |
375 | and r1, r1, #7\r |
376 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
377 | \r |
e0bcb7a9 |
378 | movs r3, r9, lsl #1 @ (force[31]|sh[30]) << 1\r |
cc68a136 |
379 | mov r3, #0\r |
e0bcb7a9 |
380 | orrmi r10,r10, #1<<23 @ r10=cells[31:24]|sh[23]|hi_not_empty[22]\r |
381 | orrcs r10,r10, #1<<20 @ |had_output[21]|force[20]|ty[15:0]\r |
382 | movmi r3, #0x40 @ default to shadowed pal on sh mode\r |
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383 | \r |
cc68a136 |
384 | cmp r7, #8\r |
385 | addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll\r |
386 | \r |
83c093a4 |
387 | and r9, r9, #0xff00\r |
388 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
389 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
390 | sub r10,r10,r9, lsl #16 @ cells-=cellskip\r |
83c093a4 |
391 | \r |
cc68a136 |
392 | @ cache some stuff to avoid mem access\r |
99bdfd31 |
393 | ldr r11,[sp, #9*4] @ est\r |
cc68a136 |
394 | mov r0, #0xf\r |
88fd63ad |
395 | ldr r11,[r11, #OFS_EST_HighCol]\r |
ea8c405f |
396 | \r |
397 | mvn r9, #0 @ r9=prevcode=-1\r |
99bdfd31 |
398 | add r1, r11, r7 @ r1=pdest\r |
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399 | \r |
400 | \r |
401 | @ r4 & r7 are scratch in this loop\r |
402 | .dsloop_subr1:\r |
403 | sub r1, r1, #8\r |
404 | .dsloop: @ 40-41 times\r |
405 | subs r10,r10, #0x01000000\r |
406 | bmi .dsloop_exit\r |
407 | \r |
408 | .dsloop_enter:\r |
409 | and r7, r5, r8\r |
410 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
411 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
412 | \r |
413 | add r1, r1, #8\r |
414 | add r8, r8, #1\r |
415 | \r |
416 | tst r7, #0x8000\r |
e0bcb7a9 |
417 | tsteq r10, #1<<20 @ force?\r |
cc68a136 |
418 | bne .DrawStrip_hiprio\r |
419 | \r |
420 | cmp r7, r9\r |
421 | beq .DrawStrip_samecode @ we know stuff about this tile already\r |
422 | \r |
423 | mov r9, r7 @ remember code\r |
740da8c6 |
424 | orr r10, r10, #1<<21 @ seen non hi-prio tile\r |
cc68a136 |
425 | \r |
426 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
427 | mov r2, r2, lsl #1\r |
428 | add r2, r2, r10, lsl #17\r |
429 | mov r2, r2, lsr #17\r |
430 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
431 | \r |
432 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
433 | \r |
434 | bic r7, r3, #0x3f\r |
435 | and r3, r9, #0x6000\r |
436 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
437 | \r |
438 | .DrawStrip_samecode:\r |
439 | tst r2, r2\r |
440 | beq .dsloop @ tileline blank\r |
441 | \r |
442 | cmp r2, r2, ror #4\r |
443 | beq .DrawStrip_SingleColor @ tileline singlecolor \r |
444 | \r |
445 | tst r9, #0x0800\r |
7a7c6476 |
446 | bne .DrawStrip_TileFlip\r |
cc68a136 |
447 | \r |
448 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
449 | .DrawStrip_TileNorm:\r |
450 | TileNorm r0\r |
451 | b .dsloop\r |
452 | \r |
7a7c6476 |
453 | .DrawStrip_TileFlip:\r |
454 | TileFlip r0\r |
455 | b .dsloop\r |
456 | \r |
cc68a136 |
457 | .DrawStrip_SingleColor:\r |
458 | and r4, r2, #0xf\r |
459 | orr r4, r3, r4\r |
460 | orr r4, r4, r4, lsl #8\r |
461 | tst r1, #1 @ not aligned?\r |
462 | strneb r4, [r1], #1\r |
463 | streqh r4, [r1], #2\r |
464 | strh r4, [r1], #2\r |
465 | strh r4, [r1], #2\r |
466 | strh r4, [r1], #2\r |
467 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
468 | b .dsloop_subr1\r |
469 | \r |
cc68a136 |
470 | .DrawStrip_hiprio_maybempt:\r |
471 | cmp r7, r9\r |
472 | beq .dsloop @ must've been empty, otherwise we wouldn't get here\r |
473 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
474 | mov r2, r2, lsl #1\r |
475 | add r2, r2, r10, lsl #17\r |
476 | mov r2, r2, lsr #17\r |
477 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
478 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
479 | mov r9, r7 @ remember code\r |
480 | tst r2, r2\r |
740da8c6 |
481 | beq .dsloop\r |
482 | orr r10, r10, #1<<22\r |
483 | \r |
484 | .DrawStrip_hiprio:\r |
e0bcb7a9 |
485 | tst r10, #0x00d00000 @ sh[23]|hi_not_empty[22]|force[20]\r |
740da8c6 |
486 | beq .DrawStrip_hiprio_maybempt\r |
487 | sub r0, r1, r11\r |
488 | orr r7, r7, r0, lsl #16\r |
489 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
490 | tst r7, #0x1000\r |
491 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
492 | str r7, [r6], #4 @ cache hi priority tile\r |
493 | mov r0, #0xf\r |
cc68a136 |
494 | b .dsloop\r |
495 | \r |
496 | .dsloop_exit:\r |
740da8c6 |
497 | tst r10, #1<<21 @ seen non hi-prio tile\r |
ea38612f |
498 | ldr r1, [sp, #9*4] @ est\r |
cc68a136 |
499 | mov r0, #0\r |
88fd63ad |
500 | ldreq r2, [r1, #OFS_EST_rendstatus]\r |
cc68a136 |
501 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
502 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
88fd63ad |
503 | streq r2, [r1, #OFS_EST_rendstatus]\r |
cc68a136 |
504 | \r |
505 | ldmfd sp!, {r4-r11,lr}\r |
506 | bx lr\r |
507 | \r |
6d7acf9e |
508 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
509 | \r |
510 | .DrawStrip_vsscroll:\r |
6d7acf9e |
511 | rsb r8, r3, #0\r |
512 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
7b802576 |
513 | bic r8, r8, #0x3fc00000\r |
514 | orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r |
cc68a136 |
515 | \r |
ea38612f |
516 | ldr r11, [sp, #9*4] @ est\r |
6d7acf9e |
517 | orr r5, r1, r10, lsl #24\r |
88fd63ad |
518 | ldr r4, [r11, #OFS_EST_DrawScanline]\r |
6d7acf9e |
519 | sub r1, r3, #1\r |
520 | orr r5, r5, r4, lsl #16 @ r5=(shift_width[31:24]|scanline[23:16]|ymask[15:0])\r |
521 | and r1, r1, #7\r |
522 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
cc68a136 |
523 | \r |
6d7acf9e |
524 | mov r10,r9, lsl #16\r |
83c093a4 |
525 | tst r0, #1\r |
6d7acf9e |
526 | orrne r10,r10, #0x8000\r |
527 | tst r9, #1<<31\r |
528 | mov r3, #0\r |
529 | orr r10,r10, #0xff000000 @ will be adjusted on entering loop\r |
83c093a4 |
530 | 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 |
531 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
cc68a136 |
532 | \r |
83c093a4 |
533 | cmp r7, #8\r |
534 | subne r10,r10, #0x01000000 @ have hscroll, start with negative cell\r |
535 | \r |
536 | and r9, r9, #0xff00\r |
537 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
538 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
539 | add r10,r10,r9, lsl #16 @ cell+=cellskip\r |
cc68a136 |
540 | \r |
6d7acf9e |
541 | @ cache some stuff to avoid mem access\r |
99bdfd31 |
542 | ldr r11,[sp, #9*4] @ est\r |
ea8c405f |
543 | mov r0, #0xf\r |
88fd63ad |
544 | ldr r11,[r11, #OFS_EST_HighCol]\r |
6d7acf9e |
545 | \r |
ea8c405f |
546 | mvn r9, #0 @ r9=prevcode=-1\r |
547 | add r1, r11, r7 @ r1=pdest\r |
6d7acf9e |
548 | \r |
549 | @ r4 & r7 are scratch in this loop\r |
550 | .dsloop_vs_subr1:\r |
551 | sub r1, r1, #8\r |
552 | .dsloop_vs: @ 40-41 times\r |
553 | add r10,r10, #0x01000000\r |
554 | and r4, r10, #0x003f0000\r |
555 | cmp r4, r10, asr #8\r |
740da8c6 |
556 | ble .dsloop_vs_exit\r |
6d7acf9e |
557 | \r |
558 | @ calc offset and read tileline code to r7, also calc ty\r |
559 | add r7, lr, #0x012000\r |
88fd63ad |
560 | add r7, r7, #0x000180 @ r7=PicoMem.vsram (PicoMem+0x22180)\r |
6d7acf9e |
561 | add r7, r7, r10,asr #23 @ vsram + ((cell&~1)<<1)\r |
562 | bic r7, r7, #3\r |
563 | tst r10,#0x8000 @ plane1?\r |
564 | addne r7, r7, #2\r |
565 | ldrh r7, [r7] @ r7=vscroll\r |
566 | \r |
567 | bic r10,r10,#0xff @ clear old ty\r |
7b802576 |
568 | and r4, r5, #0xff0000 @ scanline\r |
569 | add r4, r4, r7, lsl #16 @ ... += vscroll\r |
570 | and r4, r4, r5, lsl #16 @ ... &= ymask\r |
6d7acf9e |
571 | and r7, r4, #0x70000\r |
572 | orr r10,r10,r7, lsr #15 @ new ty\r |
573 | \r |
574 | mov r4, r4, lsr #19\r |
575 | mov r7, r5, lsr #24\r |
576 | mov r4, r4, lsl r7 @ nametabadd\r |
577 | \r |
578 | and r7, r8, r8, lsr #25\r |
88fd63ad |
579 | add r7, lr, r7, lsl #1 @ PicoMem.vram+((tilex&ts->xmask) as halfwords)\r |
6d7acf9e |
580 | add r7, r7, r4, lsl #1\r |
581 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
582 | \r |
583 | add r1, r1, #8\r |
584 | add r8, r8, #1\r |
585 | \r |
586 | tst r7, #0x8000\r |
587 | bne .DrawStrip_vs_hiprio\r |
588 | \r |
589 | cmp r7, r9\r |
590 | beq .DrawStrip_vs_samecode @ we know stuff about this tile already\r |
591 | \r |
592 | mov r9, r7 @ remember code\r |
7b802576 |
593 | orr r8, r8, #(1<<24)@ seen non hi-prio tile\r |
6d7acf9e |
594 | \r |
595 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
596 | mov r2, r2, lsl #1\r |
597 | add r2, r2, r10, lsl #17\r |
598 | mov r2, r2, lsr #17\r |
599 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
600 | \r |
88fd63ad |
601 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(PicoMem.vram+addr); // Get 8 pixels\r |
6d7acf9e |
602 | \r |
603 | bic r7, r3, #0x3f\r |
604 | and r3, r9, #0x6000\r |
605 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
606 | \r |
607 | .DrawStrip_vs_samecode:\r |
608 | tst r2, r2\r |
609 | beq .dsloop_vs @ tileline blank\r |
610 | \r |
611 | cmp r2, r2, ror #4\r |
612 | beq .DrawStrip_vs_SingleColor @ tileline singlecolor \r |
613 | \r |
614 | tst r9, #0x0800\r |
7a7c6476 |
615 | bne .DrawStrip_vs_TileFlip\r |
6d7acf9e |
616 | \r |
617 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
6d7acf9e |
618 | .DrawStrip_vs_TileNorm:\r |
619 | TileNorm r0\r |
620 | b .dsloop_vs\r |
621 | \r |
7a7c6476 |
622 | .DrawStrip_vs_TileFlip:\r |
623 | TileFlip r0\r |
624 | b .dsloop_vs\r |
625 | \r |
6d7acf9e |
626 | .DrawStrip_vs_SingleColor:\r |
627 | and r4, r2, #0xf\r |
628 | orr r4, r3, r4\r |
629 | orr r4, r4, r4, lsl #8\r |
630 | tst r1, #1 @ not aligned?\r |
631 | strneb r4, [r1], #1\r |
632 | streqh r4, [r1], #2\r |
633 | strh r4, [r1], #2\r |
634 | strh r4, [r1], #2\r |
635 | strh r4, [r1], #2\r |
636 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
637 | b .dsloop_vs_subr1\r |
638 | \r |
639 | .DrawStrip_vs_hiprio:\r |
640 | tst r10, #0x00c00000\r |
641 | beq .DrawStrip_vs_hiprio_maybempt\r |
642 | sub r0, r1, r11\r |
643 | orr r7, r7, r0, lsl #16\r |
644 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
645 | tst r7, #0x1000\r |
646 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
647 | str r7, [r6], #4 @ cache hi priority tile\r |
648 | mov r0, #0xf\r |
649 | b .dsloop_vs\r |
650 | \r |
651 | .DrawStrip_vs_hiprio_maybempt:\r |
652 | cmp r7, r9\r |
653 | beq .dsloop_vs @ must've been empty, otherwise we wouldn't get here\r |
654 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
655 | mov r2, r2, lsl #1\r |
656 | add r2, r2, r10, lsl #17\r |
657 | mov r2, r2, lsr #17\r |
658 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
88fd63ad |
659 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(PicoMem.vram+addr); // Get 8 pixels\r |
6d7acf9e |
660 | mov r9, r7 @ remember code\r |
661 | tst r2, r2\r |
662 | orrne r10, r10, #1<<22\r |
663 | bne .DrawStrip_vs_hiprio\r |
664 | b .dsloop_vs\r |
665 | \r |
740da8c6 |
666 | .dsloop_vs_exit:\r |
7b802576 |
667 | tst r8, #(1<<24) @ seen non hi-prio tile\r |
ea38612f |
668 | ldr r1, [sp, #9*4] @ est\r |
740da8c6 |
669 | mov r0, #0\r |
88fd63ad |
670 | ldreq r2, [r1, #OFS_EST_rendstatus]\r |
740da8c6 |
671 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
672 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
88fd63ad |
673 | streq r2, [r1, #OFS_EST_rendstatus]\r |
740da8c6 |
674 | \r |
675 | ldmfd sp!, {r4-r11,lr}\r |
676 | bx lr\r |
677 | \r |
6d7acf9e |
678 | \r |
679 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
680 | \r |
681 | @ interlace mode 2? Sonic 2?\r |
682 | .DrawStrip_interlace:\r |
683 | tst r0, r0\r |
684 | moveq r7, r7, lsl #21\r |
685 | movne r7, r7, lsl #5\r |
686 | \r |
687 | @ Find the line in the name table\r |
b6d7ac70 |
688 | add r2, r7, r2, lsl #22 @ r2=(vscroll+(DrawScanline<<1))<<21 (11 bits);\r |
cc68a136 |
689 | orr r1, r1, #0x80000000\r |
690 | and r2, r2, r1, ror #10 @ &((ymask<<1)|1)<<21;\r |
691 | mov r2, r2, lsr #21\r |
692 | mov r4, r2, lsr #4\r |
693 | mov r12, r12, lsr #1 @ halfwords\r |
694 | add r0, r12, r4, lsl r10 @ nametab+=(ts.line>>4)<<shift[width];\r |
695 | and r9, r9, #0xff\r |
696 | \r |
697 | sub sp, sp, #6*4\r |
698 | stmia sp, {r0,r2,r3,r5,r6,r9}\r |
699 | \r |
700 | mov r0, sp\r |
701 | bl DrawStripInterlace @ struct TileStrip *ts\r |
702 | \r |
703 | add sp, sp, #6*4\r |
704 | ldmfd sp!, {r4-r11,lr}\r |
705 | bx lr\r |
706 | \r |
707 | .pool\r |
708 | \r |
709 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
710 | \r |
99bdfd31 |
711 | @ void BackFill(int reg7, int sh, struct PicoEState *est)\r |
cc68a136 |
712 | \r |
99bdfd31 |
713 | .global BackFill\r |
cc68a136 |
714 | \r |
715 | BackFill:\r |
716 | stmfd sp!, {r4-r9,lr}\r |
717 | \r |
ea8c405f |
718 | mov r0, r0, lsl #26\r |
88fd63ad |
719 | ldr lr, [r2, #OFS_EST_HighCol]\r |
ea8c405f |
720 | mov r0, r0, lsr #26\r |
721 | add lr, lr, #8\r |
ea8c405f |
722 | \r |
cc68a136 |
723 | orr r0, r0, r1, lsl #6\r |
724 | orr r0, r0, r0, lsl #8\r |
725 | orr r0, r0, r0, lsl #16\r |
726 | \r |
727 | mov r1, r0\r |
728 | mov r2, r0\r |
729 | mov r3, r0\r |
730 | mov r4, r0\r |
731 | mov r5, r0\r |
732 | mov r6, r0\r |
733 | mov r7, r0\r |
734 | \r |
735 | @ go go go!\r |
736 | stmia lr!, {r0-r7} @ 10*8*4\r |
737 | stmia lr!, {r0-r7}\r |
738 | stmia lr!, {r0-r7}\r |
739 | stmia lr!, {r0-r7}\r |
740 | stmia lr!, {r0-r7}\r |
741 | stmia lr!, {r0-r7}\r |
742 | stmia lr!, {r0-r7}\r |
743 | stmia lr!, {r0-r7}\r |
744 | stmia lr!, {r0-r7}\r |
745 | stmia lr!, {r0-r7}\r |
746 | \r |
99bdfd31 |
747 | ldmfd sp!, {r4-r9,lr}\r |
748 | bx lr\r |
cc68a136 |
749 | \r |
750 | \r |
751 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
752 | \r |
ea38612f |
753 | @ void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)\r |
cc68a136 |
754 | \r |
ea38612f |
755 | .global DrawTilesFromCache\r |
cc68a136 |
756 | \r |
757 | DrawTilesFromCache:\r |
ea38612f |
758 | stmfd sp!, {r4-r9,r11,lr}\r |
cc68a136 |
759 | \r |
cc68a136 |
760 | @ cache some stuff to avoid mem access\r |
88fd63ad |
761 | ldr r11,[r3, #OFS_EST_HighCol]\r |
cc68a136 |
762 | mov r12,#0xf\r |
88fd63ad |
763 | ldr lr, [r3, #OFS_EST_PicoMem_vram]\r |
ea38612f |
764 | mov r9, r3 @ est\r |
cc68a136 |
765 | \r |
740da8c6 |
766 | mvn r5, #0 @ r5=prevcode=-1\r |
7a7c6476 |
767 | ands r8, r1, #1\r |
768 | orr r8, r8, r2, lsl #1\r |
740da8c6 |
769 | bne .dtfc_check_rendflags\r |
770 | \r |
cc68a136 |
771 | @ scratch: r4, r7\r |
772 | .dtfc_loop:\r |
773 | ldr r6, [r0], #4 @ read code\r |
774 | movs r1, r6, lsr #16 @ r1=dx;\r |
ea38612f |
775 | ldmeqfd sp!, {r4-r9,r11,pc} @ dx is never zero, this must be a terminator, return\r |
7a7c6476 |
776 | bic r4, r1, #0xfe00\r |
777 | add r1, r11, r4 @ r1=pdest\r |
cc68a136 |
778 | \r |
e0bcb7a9 |
779 | movs r7, r6, lsl #16\r |
780 | bpl .dtfc_loop @ !(code & 0x8000)\r |
cc68a136 |
781 | cmp r5, r7, lsr #16\r |
782 | beq .dtfc_samecode @ if (code==prevcode)\r |
783 | \r |
784 | mov r5, r7, lsr #16\r |
785 | \r |
786 | mov r2, r5, lsl #21\r |
787 | mov r2, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4;\r |
788 | add r2, r2, r6, lsr #25 @ addr+=ty\r |
789 | \r |
790 | and r3, r5, #0x6000\r |
791 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
792 | \r |
793 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
794 | \r |
795 | .dtfc_samecode:\r |
7a7c6476 |
796 | rsbs r4, r4, r8, lsr #1\r |
797 | bmi .dtfc_cut_tile\r |
798 | \r |
799 | tst r8, #1\r |
cc68a136 |
800 | bne .dtfc_shadow\r |
801 | \r |
802 | tst r2, r2\r |
803 | beq .dtfc_loop\r |
804 | \r |
805 | cmp r2, r2, ror #4\r |
806 | beq .dtfc_SingleColor @ tileline singlecolor \r |
807 | \r |
808 | tst r5, #0x0800\r |
7a7c6476 |
809 | bne .dtfc_TileFlip\r |
cc68a136 |
810 | \r |
811 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
812 | .dtfc_TileNorm:\r |
813 | TileNorm r12\r |
814 | b .dtfc_loop\r |
815 | \r |
7a7c6476 |
816 | .dtfc_TileFlip:\r |
817 | TileFlip r12\r |
818 | b .dtfc_loop\r |
819 | \r |
cc68a136 |
820 | .dtfc_SingleColor:\r |
821 | and r4, r2, #0xf\r |
822 | orr r4, r3, r4\r |
823 | orr r4, r4, r4, lsl #8\r |
824 | tst r1, #1 @ not aligned?\r |
825 | strneb r4, [r1], #1\r |
826 | streqh r4, [r1], #2\r |
827 | strh r4, [r1], #2\r |
828 | strh r4, [r1], #2\r |
829 | strh r4, [r1], #2\r |
830 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
831 | b .dtfc_loop\r |
832 | \r |
833 | .dtfc_shadow:\r |
834 | tst r2, r2\r |
835 | beq .dtfc_shadow_blank\r |
836 | \r |
837 | cmp r2, r2, ror #4\r |
838 | beq .dtfc_SingleColor @ tileline singlecolor \r |
839 | \r |
840 | tst r5, #0x0800\r |
7a7c6476 |
841 | bne .dtfc_TileFlipShHP\r |
cc68a136 |
842 | \r |
843 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
844 | .dtfc_TileNormShHP:\r |
845 | TileNormShHP\r |
846 | b .dtfc_loop\r |
847 | \r |
7a7c6476 |
848 | .dtfc_TileFlipShHP:\r |
849 | TileFlipShHP\r |
850 | b .dtfc_loop\r |
851 | \r |
cc68a136 |
852 | .dtfc_shadow_blank:\r |
07abbab1 |
853 | tst r1, #1\r |
854 | ldrneb r4, [r1]\r |
bfa12428 |
855 | mov r6, #0xbf\r |
856 | and r4, r4, #0xbf\r |
07abbab1 |
857 | strneb r4, [r1], #1\r |
858 | ldrh r4, [r1]\r |
859 | orr r6, r6, r6, lsl #8\r |
860 | and r4, r4, r6\r |
861 | strh r4, [r1], #2\r |
862 | ldrh r4, [r1]\r |
863 | and r4, r4, r6\r |
864 | strh r4, [r1], #2\r |
865 | ldrh r4, [r1]\r |
866 | and r4, r4, r6\r |
867 | strh r4, [r1], #2\r |
868 | ldrh r4, [r1]\r |
869 | and r4, r4, r6\r |
870 | streqh r4, [r1]\r |
871 | strneb r4, [r1]\r |
cc68a136 |
872 | b .dtfc_loop\r |
873 | \r |
7a7c6476 |
874 | .dtfc_cut_tile:\r |
875 | add r4, r4, #7 @ 0-6\r |
876 | mov r4, r4, lsl #2\r |
877 | mov r12,#0xf<<28\r |
878 | mov r12,r12,asr r4\r |
879 | mov r2, r2, ror #16\r |
880 | tst r5, #0x0800 @ flipped?\r |
881 | mvnne r12,r12\r |
882 | and r2, r2, r12\r |
883 | mov r2, r2, ror #16\r |
884 | mov r12,#0xf\r |
885 | tst r8, #1\r |
886 | bne .dtfc_shadow\r |
887 | tst r2, r2\r |
888 | beq .dtfc_loop\r |
889 | tst r5, #0x0800\r |
890 | beq .dtfc_TileNorm\r |
891 | b .dtfc_TileFlip\r |
892 | \r |
740da8c6 |
893 | @ check if we have detected layer covered with hi-prio tiles:\r |
894 | .dtfc_check_rendflags:\r |
88fd63ad |
895 | ldr r2, [r9, #OFS_EST_rendstatus]\r |
283fec1b |
896 | tst r2, #(PDRAW_PLANE_HI_PRIO|PDRAW_SHHI_DONE)\r |
740da8c6 |
897 | beq .dtfc_loop\r |
7a7c6476 |
898 | bic r8, r8, #1 @ sh/hi mode off\r |
283fec1b |
899 | tst r2, #PDRAW_SHHI_DONE\r |
740da8c6 |
900 | bne .dtfc_loop @ already processed\r |
283fec1b |
901 | orr r2, r2, #PDRAW_SHHI_DONE\r |
88fd63ad |
902 | str r2, [r9, #OFS_EST_rendstatus]\r |
740da8c6 |
903 | \r |
904 | add r1, r11,#8\r |
07abbab1 |
905 | mov r3, #320/4/4\r |
bfa12428 |
906 | mov r6, #0xbf\r |
740da8c6 |
907 | orr r6, r6, r6, lsl #8\r |
908 | orr r6, r6, r6, lsl #16\r |
909 | .dtfc_loop_shprep:\r |
07abbab1 |
910 | ldmia r1, {r2,r4,r5,r7}\r |
740da8c6 |
911 | subs r3, r3, #1\r |
07abbab1 |
912 | and r2, r2, r6\r |
913 | and r4, r4, r6\r |
914 | and r5, r5, r6\r |
915 | and r7, r7, r6\r |
916 | stmia r1!,{r2,r4,r5,r7}\r |
917 | bne .dtfc_loop_shprep\r |
918 | \r |
919 | mvn r5, #0 @ r5=prevcode=-1\r |
920 | b .dtfc_loop\r |
740da8c6 |
921 | \r |
cc68a136 |
922 | .pool\r |
923 | \r |
924 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
925 | \r |
926 | \r |
ea38612f |
927 | @ void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est)\r |
928 | \r |
929 | .global DrawSpritesSHi\r |
e352c3af |
930 | \r |
931 | DrawSpritesSHi:\r |
fbc65db7 |
932 | ldr r3, [r0]\r |
933 | mov r12,#0xff\r |
e352c3af |
934 | ands r3, r3, #0x7f\r |
935 | bxeq lr\r |
cc68a136 |
936 | \r |
ea38612f |
937 | stmfd sp!, {r1,r4-r11,lr} @ +est\r |
fbc65db7 |
938 | strb r12,[r0,#2] @ set end marker\r |
939 | add r10,r0, #3 @ r10=HighLnSpr end\r |
e352c3af |
940 | add r10,r10,r3 @ r10=HighLnSpr end\r |
941 | \r |
88fd63ad |
942 | ldr r11,[r1, #OFS_EST_HighCol]\r |
ea8c405f |
943 | mov r12,#0xf\r |
88fd63ad |
944 | ldr lr, [r1, #OFS_EST_PicoMem_vram]\r |
cc68a136 |
945 | \r |
cc68a136 |
946 | \r |
e352c3af |
947 | DrawSpriteSHi:\r |
948 | @ draw next sprite\r |
949 | ldrb r0, [r10,#-1]!\r |
ea38612f |
950 | ldr r7, [sp] @ est\r |
88fd63ad |
951 | ldr r1, [r7, #OFS_EST_HighPreSpr]\r |
e352c3af |
952 | cmp r0, #0xff\r |
ea38612f |
953 | ldmeqfd sp!, {r1,r4-r11,pc} @ end of list\r |
e352c3af |
954 | and r0, r0, #0x7f\r |
955 | add r0, r1, r0, lsl #3\r |
956 | \r |
957 | ldr r9, [r0, #4] @ sprite[1]\r |
958 | mov r2, r9, asr #16 @ r2=sx\r |
cc68a136 |
959 | \r |
e352c3af |
960 | mov r9, r9, lsl #16\r |
961 | mov r3, r9, lsr #31 @ priority\r |
962 | mov r9, r9, lsr #16\r |
fbc65db7 |
963 | @ orr r9, r9, r8, lsl #31 @ r9=code|sh[31] @@ sh is always on here now\r |
e352c3af |
964 | and r4, r9, #0x6000\r |
965 | orr r9, r9, r4, lsl #16\r |
fbc65db7 |
966 | orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
e352c3af |
967 | cmp r12,r9, lsr #28 @ sh/hi with pal3?\r |
e54507e8 |
968 | cmpne r3, #1 @ if not, is it hi prio?\r |
e352c3af |
969 | bne DrawSpriteSHi @ non-operator low sprite, already drawn\r |
cc68a136 |
970 | \r |
e352c3af |
971 | ldr r3, [r0] @ sprite[0]\r |
e352c3af |
972 | mov r6, r3, lsr #28\r |
973 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
974 | mov r5, r3, lsr #24\r |
975 | and r5, r5, #7 @ r5=height\r |
cc68a136 |
976 | \r |
88fd63ad |
977 | ldr r7, [r7, #OFS_EST_DrawScanline]\r |
e352c3af |
978 | mov r0, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
cc68a136 |
979 | \r |
e352c3af |
980 | sub r7, r7, r0, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
981 | \r |
e352c3af |
982 | tst r9, #0x1000\r |
983 | movne r0, r5, lsl #3\r |
984 | subne r0, r0, #1\r |
985 | subne r7, r0, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
cc68a136 |
986 | \r |
e352c3af |
987 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
988 | tst r9, #0x0800\r |
989 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
990 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
cc68a136 |
991 | \r |
e352c3af |
992 | mov r8, r8, lsl #21\r |
993 | mov r8, r8, lsr #17\r |
994 | and r7, r7, #7\r |
995 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
996 | \r |
997 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
e352c3af |
998 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
999 | \r |
1000 | add r6, r6, #1 @ inc now\r |
1001 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1002 | b .dsprShi_loop_enter\r |
1003 | \r |
1004 | .dsprShi_loop:\r |
1005 | subs r6, r6, #1 @ width--\r |
1006 | beq DrawSpriteSHi\r |
1007 | adds r0, r0, #8 @ sx+=8\r |
1008 | add r8, r8, r5 @ tile+=delta\r |
1009 | \r |
1010 | .dsprShi_loop_enter:\r |
1011 | ble .dsprShi_loop @ sx <= 0\r |
cc68a136 |
1012 | cmp r0, #328\r |
e352c3af |
1013 | bge DrawSpriteSHi\r |
cc68a136 |
1014 | \r |
1015 | mov r8, r8, lsl #17\r |
e352c3af |
1016 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
cc68a136 |
1017 | \r |
88fd63ad |
1018 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(PicoMem.vram+addr); // Get 8 pixels\r |
e352c3af |
1019 | add r1, r11, r0 @ r1=pdest\r |
cc68a136 |
1020 | tst r2, r2\r |
e352c3af |
1021 | beq .dsprShi_loop\r |
cc68a136 |
1022 | \r |
e352c3af |
1023 | cmp r12, r9, lsr #28\r |
1024 | beq .dsprShi_shadow\r |
cc68a136 |
1025 | \r |
1026 | cmp r2, r2, ror #4\r |
e352c3af |
1027 | beq .dsprShi_SingleColor @ tileline singlecolor \r |
cc68a136 |
1028 | \r |
e352c3af |
1029 | tst r9, #0x0800\r |
1030 | bne .dsprShi_TileFlip\r |
cc68a136 |
1031 | \r |
e352c3af |
1032 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
1033 | @ scratch: r4, r7\r |
1034 | .dsprShi_TileNorm:\r |
cc68a136 |
1035 | TileNorm r12\r |
e352c3af |
1036 | b .dsprShi_loop\r |
cc68a136 |
1037 | \r |
e352c3af |
1038 | .dsprShi_TileFlip:\r |
7a7c6476 |
1039 | TileFlip r12\r |
e352c3af |
1040 | b .dsprShi_loop\r |
7a7c6476 |
1041 | \r |
e352c3af |
1042 | .dsprShi_SingleColor:\r |
cc68a136 |
1043 | and r4, r2, #0xf\r |
1044 | orr r4, r3, r4\r |
1045 | orr r4, r4, r4, lsl #8\r |
e352c3af |
1046 | tst r0, #1 @ not aligned?\r |
cc68a136 |
1047 | strneb r4, [r1], #1\r |
1048 | streqh r4, [r1], #2\r |
1049 | strh r4, [r1], #2\r |
1050 | strh r4, [r1], #2\r |
1051 | strh r4, [r1], #2\r |
1052 | strneb r4, [r1], #1\r |
e352c3af |
1053 | b .dsprShi_loop\r |
cc68a136 |
1054 | \r |
e352c3af |
1055 | .dsprShi_shadow:\r |
1056 | tst r9, #0x8000\r |
1057 | beq .dsprShi_shadow_lowpri\r |
07abbab1 |
1058 | \r |
cc68a136 |
1059 | cmp r2, r2, ror #4\r |
e352c3af |
1060 | beq .dsprShi_singlec_sh\r |
cc68a136 |
1061 | \r |
e352c3af |
1062 | tst r9, #0x0800\r |
1063 | bne .dsprShi_TileFlip_sh\r |
cc68a136 |
1064 | \r |
e54507e8 |
1065 | @ (r1=pdest, r2=pixels8, r3=pal) r4, r7: scratch, r12: helper pattern\r |
e352c3af |
1066 | .dsprShi_TileNorm_sh:\r |
cc68a136 |
1067 | TileNormSh\r |
e352c3af |
1068 | b .dsprShi_loop\r |
cc68a136 |
1069 | \r |
e352c3af |
1070 | .dsprShi_TileFlip_sh:\r |
7a7c6476 |
1071 | TileFlipSh\r |
e352c3af |
1072 | b .dsprShi_loop\r |
7a7c6476 |
1073 | \r |
e352c3af |
1074 | .dsprShi_singlec_sh:\r |
cc68a136 |
1075 | cmp r2, #0xe0000000\r |
e352c3af |
1076 | bcc .dsprShi_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
cc68a136 |
1077 | tst r2, #0x10000000\r |
e352c3af |
1078 | bne .dsprShi_sh_sh\r |
cc68a136 |
1079 | TileSingleHi\r |
e352c3af |
1080 | b .dsprShi_loop\r |
cc68a136 |
1081 | \r |
e352c3af |
1082 | .dsprShi_sh_sh:\r |
cc68a136 |
1083 | TileSingleSh\r |
e352c3af |
1084 | b .dsprShi_loop\r |
cc68a136 |
1085 | \r |
e352c3af |
1086 | .dsprShi_shadow_lowpri:\r |
1087 | tst r9, #0x800\r |
1088 | bne .dsprShi_TileFlip_sh_lp\r |
07abbab1 |
1089 | \r |
e352c3af |
1090 | .dsprShi_TileNorm_sh_lp:\r |
07abbab1 |
1091 | TileNormSh_onlyop_lp\r |
e352c3af |
1092 | b .dsprShi_loop\r |
07abbab1 |
1093 | \r |
e352c3af |
1094 | .dsprShi_TileFlip_sh_lp:\r |
07abbab1 |
1095 | TileFlipSh_onlyop_lp\r |
e352c3af |
1096 | b .dsprShi_loop\r |
07abbab1 |
1097 | \r |
cc68a136 |
1098 | .pool\r |
1099 | \r |
1100 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1101 | \r |
ea38612f |
1102 | @ void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
1103 | @ struct PicoEState *est)\r |
1104 | \r |
1105 | .global DrawAllSprites\r |
283fec1b |
1106 | \r |
1107 | DrawAllSprites:\r |
fbc65db7 |
1108 | orr r1, r2, r1, lsl #1\r |
ea38612f |
1109 | ldr r2, [r0]\r |
1110 | ands r2, r2, #0x7f\r |
283fec1b |
1111 | bxeq lr\r |
1112 | \r |
1113 | @ time to do some real work\r |
ea38612f |
1114 | stmfd sp!, {r1,r3-r11,lr} @ +sh|prio<<1 +est\r |
283fec1b |
1115 | mov r12,#0xff\r |
fbc65db7 |
1116 | strb r12,[r0,#2] @ set end marker\r |
1117 | add r10,r0, #3\r |
ea38612f |
1118 | add r10,r10,r2 @ r10=HighLnSpr end\r |
283fec1b |
1119 | \r |
88fd63ad |
1120 | ldr r11,[r3, #OFS_EST_HighCol]\r |
283fec1b |
1121 | mov r12,#0xf\r |
88fd63ad |
1122 | ldr lr, [r3, #OFS_EST_PicoMem_vram]\r |
283fec1b |
1123 | \r |
1124 | @ + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size\r |
cc68a136 |
1125 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1126 | \r |
ea38612f |
1127 | DrawSprite:\r |
283fec1b |
1128 | @ draw next sprite\r |
1129 | ldrb r0, [r10,#-1]!\r |
ea38612f |
1130 | ldr r8, [sp] @ sh|prio<<1\r |
1131 | ldr r7, [sp, #4] @ est\r |
e352c3af |
1132 | mov r2, r0, lsr #7\r |
1133 | cmp r0, #0xff\r |
ea38612f |
1134 | ldmeqfd sp!, {r1,r3-r11,pc} @ end of list\r |
97a7f774 |
1135 | cmp r2, r8, lsr #1\r |
e352c3af |
1136 | bne DrawSprite @ wrong priority\r |
88fd63ad |
1137 | ldr r1, [r7, #OFS_EST_HighPreSpr]\r |
283fec1b |
1138 | and r0, r0, #0x7f\r |
1139 | add r0, r1, r0, lsl #3\r |
cc68a136 |
1140 | \r |
cc68a136 |
1141 | ldr r3, [r0] @ sprite[0]\r |
88fd63ad |
1142 | ldr r7, [r7, #OFS_EST_DrawScanline]\r |
cc68a136 |
1143 | mov r6, r3, lsr #28\r |
1144 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
1145 | mov r5, r3, lsr #24\r |
1146 | and r5, r5, #7 @ r5=height\r |
1147 | \r |
1148 | mov r4, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
1149 | \r |
cc68a136 |
1150 | ldr r9, [r0, #4]\r |
b6d7ac70 |
1151 | sub r7, r7, r4, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1152 | \r |
cc68a136 |
1153 | mov r2, r9, asr #16 @ r2=sx\r |
e5fa9817 |
1154 | mov r9, r9, lsl #16\r |
1155 | mov r9, r9, lsr #16\r |
97a7f774 |
1156 | orr r9, r9, r8, lsl #31 @ r9=code|sh[31]\r |
cc68a136 |
1157 | \r |
1158 | tst r9, #0x1000\r |
1159 | movne r4, r5, lsl #3\r |
1160 | subne r4, r4, #1\r |
1161 | subne r7, r4, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
1162 | \r |
07abbab1 |
1163 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
cc68a136 |
1164 | tst r9, #0x0800\r |
1165 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1166 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
1167 | \r |
07abbab1 |
1168 | mov r8, r8, lsl #21\r |
1169 | mov r8, r8, lsr #17\r |
cc68a136 |
1170 | and r7, r7, #7\r |
1171 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1172 | \r |
e5fa9817 |
1173 | .dspr_continue:\r |
cc68a136 |
1174 | @ cache some stuff to avoid mem access\r |
cc68a136 |
1175 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
1176 | and r4, r9, #0x6000\r |
1177 | orr r9, r9, r4, lsl #16\r |
97a7f774 |
1178 | orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
cc68a136 |
1179 | \r |
cc68a136 |
1180 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
97a7f774 |
1181 | orrmi r3, r3, #0x40 @ for sh/hi\r |
cc68a136 |
1182 | \r |
1183 | add r6, r6, #1 @ inc now\r |
1184 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1185 | b .dspr_loop_enter\r |
1186 | \r |
1187 | .dspr_loop:\r |
1188 | subs r6, r6, #1 @ width--\r |
283fec1b |
1189 | beq DrawSprite\r |
cc68a136 |
1190 | adds r0, r0, #8 @ sx+=8\r |
1191 | add r8, r8, r5 @ tile+=delta\r |
1192 | \r |
1193 | .dspr_loop_enter:\r |
1194 | ble .dspr_loop @ sx <= 0\r |
1195 | cmp r0, #328\r |
283fec1b |
1196 | bge DrawSprite\r |
cc68a136 |
1197 | \r |
1198 | mov r8, r8, lsl #17\r |
1199 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
1200 | \r |
88fd63ad |
1201 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(PicoMem.vram+addr); // Get 8 pixels\r |
cc68a136 |
1202 | add r1, r11, r0 @ r1=pdest\r |
1203 | tst r2, r2\r |
1204 | beq .dspr_loop\r |
1205 | \r |
1206 | cmp r12, r9, lsr #28\r |
1207 | beq .dspr_shadow\r |
1208 | \r |
1209 | cmp r2, r2, ror #4\r |
1210 | beq .dspr_SingleColor @ tileline singlecolor \r |
1211 | \r |
1212 | tst r9, #0x0800\r |
7a7c6476 |
1213 | bne .dspr_TileFlip\r |
cc68a136 |
1214 | \r |
1215 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1216 | @ scratch: r4, r7\r |
1217 | .dspr_TileNorm:\r |
1218 | TileNorm r12\r |
1219 | b .dspr_loop\r |
1220 | \r |
7a7c6476 |
1221 | .dspr_TileFlip:\r |
1222 | TileFlip r12\r |
1223 | b .dspr_loop\r |
1224 | \r |
07abbab1 |
1225 | .dspr_singlec_sh:\r |
1226 | cmp r2, #0xe0000000\r |
e54507e8 |
1227 | bcs .dspr_TileNorm_sh @ op. tileline, markop. XXX: maybe add a spec. handler?\r |
07abbab1 |
1228 | \r |
cc68a136 |
1229 | .dspr_SingleColor:\r |
1230 | and r4, r2, #0xf\r |
1231 | orr r4, r3, r4\r |
1232 | orr r4, r4, r4, lsl #8\r |
1233 | tst r0, #1 @ not aligned?\r |
1234 | strneb r4, [r1], #1\r |
1235 | streqh r4, [r1], #2\r |
1236 | strh r4, [r1], #2\r |
1237 | strh r4, [r1], #2\r |
1238 | strh r4, [r1], #2\r |
1239 | strneb r4, [r1], #1\r |
1240 | b .dspr_loop\r |
1241 | \r |
1242 | .dspr_shadow:\r |
1243 | cmp r2, r2, ror #4\r |
1244 | beq .dspr_singlec_sh\r |
1245 | \r |
1246 | tst r9, #0x0800\r |
7a7c6476 |
1247 | bne .dspr_TileFlip_sh\r |
cc68a136 |
1248 | \r |
1249 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1250 | .dspr_TileNorm_sh:\r |
e54507e8 |
1251 | TileNormSh_markop\r |
cc68a136 |
1252 | b .dspr_loop\r |
1253 | \r |
7a7c6476 |
1254 | .dspr_TileFlip_sh:\r |
e54507e8 |
1255 | TileFlipSh_markop\r |
cc68a136 |
1256 | b .dspr_loop\r |
1257 | \r |
1258 | \r |
cc68a136 |
1259 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1260 | \r |
ea38612f |
1261 | @ void DrawWindow(int tstart, int tend, int prio, int sh\r |
1262 | @ struct PicoEState *est)\r |
1263 | \r |
1264 | .global DrawWindow\r |
cc68a136 |
1265 | \r |
1266 | DrawWindow:\r |
ea38612f |
1267 | ldr r12, [sp] @ est\r |
cc68a136 |
1268 | stmfd sp!, {r4-r11,lr}\r |
1269 | \r |
88fd63ad |
1270 | ldr r6, [r12, #OFS_EST_Pico]\r |
1271 | ldr r10, [r12, #OFS_EST_DrawScanline]\r |
ea38612f |
1272 | mov r11, r12 @ est\r |
88fd63ad |
1273 | ldrb r12, [r6, #OFS_Pico_video_reg+3] @ pvid->reg[3]\r |
cc68a136 |
1274 | \r |
88fd63ad |
1275 | ldr r4, [r6, #OFS_Pico_video_reg+12]\r |
cc68a136 |
1276 | mov r5, r10, lsr #3\r |
1277 | and r10, r10, #7\r |
1278 | mov r10, r10, lsl #1 @ r10=ty\r |
1279 | \r |
1280 | mov r12, r12, lsl #10\r |
1281 | \r |
1282 | tst r4, #1 @ 40 cell mode?\r |
1283 | andne r12, r12, #0xf000 @ 0x3c<<10\r |
1284 | andeq r12, r12, #0xf800\r |
1285 | addne r12, r12, r5, lsl #7\r |
1286 | addeq r12, r12, r5, lsl #6 @ nametab\r |
1287 | add r12, r12, r0, lsl #2 @ +starttile\r |
1288 | \r |
88fd63ad |
1289 | ldr lr, [r11, #OFS_EST_PicoMem_vram]\r |
1290 | ldr r6, [r11, #OFS_EST_rendstatus]\r |
cc68a136 |
1291 | \r |
1292 | @ fetch the first code now\r |
1293 | ldrh r7, [lr, r12]\r |
1294 | \r |
283fec1b |
1295 | ands r6, r6, #PDRAW_WND_DIFF_PRIO\r |
cc68a136 |
1296 | orr r6, r6, r2\r |
cc68a136 |
1297 | \r |
7292c709 |
1298 | eoreq r8, r2, r7, lsr #15 @ do prio bits differ?\r |
1299 | cmpeq r8, #1\r |
1300 | ldmeqfd sp!, {r4-r11,pc} @ yes, assume that whole window uses same priority\r |
cc68a136 |
1301 | \r |
cc68a136 |
1302 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
1303 | \r |
1304 | sub r8, r1, r0\r |
cc68a136 |
1305 | \r |
1306 | @ cache some stuff to avoid mem access\r |
88fd63ad |
1307 | ldr r11, [r11, #OFS_EST_HighCol]\r |
ea8c405f |
1308 | mov r8, r8, lsl #1 @ cells\r |
ea8c405f |
1309 | add r11,r11,#8\r |
ea8c405f |
1310 | mvn r9, #0 @ r9=prevcode=-1\r |
07abbab1 |
1311 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
cc68a136 |
1312 | mov r0, #0xf\r |
1313 | b .dwloop_enter\r |
1314 | \r |
07abbab1 |
1315 | @ r4,r5 are scratch in this loop\r |
cc68a136 |
1316 | .dwloop:\r |
1317 | add r1, r1, #8\r |
1318 | .dwloop_nor1:\r |
1319 | add r12, r12, #2 @ halfwords\r |
1320 | ldrh r7, [lr, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
1321 | subs r8, r8, #1\r |
1322 | beq .dwloop_end @ done\r |
1323 | \r |
1324 | eor r5, r6, r7, lsr #15\r |
1325 | tst r5, #1\r |
1326 | orrne r6, r6, #2 @ wrong pri\r |
1327 | bne .dwloop\r |
1328 | \r |
1329 | cmp r7, r9\r |
1330 | beq .dw_samecode @ we know stuff about this tile already\r |
1331 | \r |
1332 | .dwloop_enter:\r |
1333 | mov r9, r7 @ remember code\r |
1334 | \r |
1335 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
1336 | mov r2, r2, lsl #1\r |
1337 | add r2, r10, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4; addr+=ty\r |
1338 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
1339 | \r |
1340 | and r3, r9, #0x6000\r |
1341 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
1342 | \r |
1343 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1344 | \r |
1345 | .dw_samecode:\r |
1346 | tst r6, #0x100\r |
1347 | bne .dw_shadow\r |
1348 | .dw_shadow_done:\r |
1349 | tst r2, r2\r |
1350 | beq .dwloop @ tileline blank\r |
1351 | \r |
1352 | cmp r2, r2, ror #4\r |
1353 | beq .dw_SingleColor @ tileline singlecolor \r |
1354 | \r |
1355 | tst r9, #0x0800\r |
7a7c6476 |
1356 | bne .dw_TileFlip\r |
cc68a136 |
1357 | \r |
1358 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
1359 | .dw_TileNorm:\r |
1360 | TileNorm r0\r |
1361 | b .dwloop\r |
1362 | \r |
7a7c6476 |
1363 | .dw_TileFlip:\r |
1364 | TileFlip r0\r |
1365 | b .dwloop\r |
1366 | \r |
cc68a136 |
1367 | .dw_SingleColor:\r |
1368 | and r4, r0, r2 @ #0x0000000f\r |
1369 | orr r4, r3, r4\r |
1370 | orr r4, r4, r4, lsl #8\r |
1371 | orr r4, r4, r4, lsl #16\r |
1372 | mov r5, r4\r |
1373 | stmia r1!, {r4,r5}\r |
1374 | b .dwloop_nor1 @ we incremeted r1 ourselves\r |
1375 | \r |
1376 | .dw_shadow:\r |
1377 | tst r6, #1 @ hi pri?\r |
1378 | orreq r3, r3, #0x40\r |
1379 | beq .dw_shadow_done\r |
1380 | ldr r4, [r1]\r |
07abbab1 |
1381 | mov r5, #0x3f\r |
1382 | orr r5, r5, r5, lsl #8\r |
1383 | orr r5, r5, r5, lsl #16\r |
1384 | and r4, r4, r5\r |
cc68a136 |
1385 | str r4, [r1]\r |
1386 | ldr r4, [r1,#4]\r |
07abbab1 |
1387 | and r4, r4, r5\r |
cc68a136 |
1388 | str r4, [r1,#4]\r |
1389 | b .dw_shadow_done\r |
1390 | \r |
1391 | .dwloop_end:\r |
ea38612f |
1392 | and r2, r6, #PDRAW_WND_DIFF_PRIO\r |
1393 | ldmfd sp!, {r4-r11,lr}\r |
1394 | ldr r0, [sp]\r |
88fd63ad |
1395 | ldr r1, [r0, #OFS_EST_rendstatus]\r |
ea38612f |
1396 | orr r1, r1, r2\r |
88fd63ad |
1397 | str r1, [r0, #OFS_EST_rendstatus]\r |
cc68a136 |
1398 | \r |
ea38612f |
1399 | bx lr\r |
cc68a136 |
1400 | \r |
1401 | \r |
1402 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1403 | \r |
1404 | \r |
1405 | @ hilights 2 pixels in RGB444/BGR444 format\r |
1406 | .macro TileDoShHi2Pixels444 reg\r |
1407 | mov \reg, \reg, ror #12\r |
1408 | adds \reg, \reg, #0x40000000\r |
1409 | orrcs \reg, \reg, #0xf0000000\r |
1410 | mov \reg, \reg, ror #28\r |
1411 | adds \reg, \reg, #0x40000000\r |
1412 | orrcs \reg, \reg, #0xf0000000\r |
1413 | mov \reg, \reg, ror #28\r |
1414 | adds \reg, \reg, #0x40000000\r |
1415 | orrcs \reg, \reg, #0xf0000000\r |
1416 | mov \reg, \reg, ror #24\r |
1417 | adds \reg, \reg, #0x40000000\r |
1418 | orrcs \reg, \reg, #0xf0000000\r |
1419 | mov \reg, \reg, ror #28\r |
1420 | adds \reg, \reg, #0x40000000\r |
1421 | orrcs \reg, \reg, #0xf0000000\r |
1422 | mov \reg, \reg, ror #28\r |
1423 | adds \reg, \reg, #0x40000000\r |
1424 | orrcs \reg, \reg, #0xf0000000\r |
1425 | mov \reg, \reg, ror #12\r |
1426 | .endm\r |
1427 | \r |
1428 | \r |
cc68a136 |
1429 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1430 | \r |
1431 | \r |
cc68a136 |
1432 | @ Convert 0000bbb0 ggg0rrr0\r |
1433 | @ to rrrrrggg gggbbbbb\r |
1434 | \r |
a39d8ba5 |
1435 | @ r2,r3 - scratch, lr = 0x001c001c, r8 = 0x08610861\r |
cc68a136 |
1436 | .macro convRGB565 reg\r |
a39d8ba5 |
1437 | and r2, lr, \reg,lsr #7 @ b\r |
1438 | and r3, lr, \reg,lsr #3 @ g\r |
1439 | and \reg, lr, \reg,lsl #1 @ r\r |
1440 | orr r2, r2, r3, lsl #6\r |
1441 | orr \reg, r2, \reg,lsl #11\r |
1442 | \r |
1443 | and r2, r8, \reg,lsr #4\r |
1444 | orr \reg, \reg, r2\r |
cc68a136 |
1445 | .endm\r |
1446 | \r |
a39d8ba5 |
1447 | @ trashes: r2-r8,r12,lr; r8 = 0x08610861; r0,r1 are advanced\r |
b2305d08 |
1448 | .macro vidConvCpyRGB565_local\r |
2ec14aec |
1449 | mov r12, r2, lsr #3 @ repeats\r |
cc68a136 |
1450 | mov lr, #0x001c0000\r |
1451 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
cc68a136 |
1452 | \r |
b2305d08 |
1453 | 0:\r |
cc68a136 |
1454 | ldmia r1!, {r4-r7}\r |
1455 | subs r12, r12, #1\r |
1456 | convRGB565 r4\r |
1457 | str r4, [r0], #4\r |
1458 | convRGB565 r5\r |
1459 | str r5, [r0], #4\r |
1460 | convRGB565 r6\r |
1461 | str r6, [r0], #4\r |
1462 | convRGB565 r7\r |
1463 | str r7, [r0], #4\r |
1464 | \r |
b2305d08 |
1465 | bgt 0b\r |
1466 | .endm\r |
1467 | \r |
1468 | \r |
1469 | .global vidConvCpyRGB565\r |
cc68a136 |
1470 | \r |
b2305d08 |
1471 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
1472 | stmfd sp!, {r4-r9,lr}\r |
a39d8ba5 |
1473 | mov r8, #0x0061\r |
1474 | orr r8, r8, #0x0800\r |
f4750ee0 |
1475 | orr r8, r8, r8, lsl #16\r |
b2305d08 |
1476 | vidConvCpyRGB565_local\r |
cc68a136 |
1477 | ldmfd sp!, {r4-r9,lr}\r |
1478 | bx lr\r |
1479 | \r |
1480 | \r |
ea38612f |
1481 | @ void PicoDoHighPal555(int sh, int line, struct PicoEState *est)\r |
1482 | \r |
1483 | .global PicoDoHighPal555\r |
cc68a136 |
1484 | \r |
b2305d08 |
1485 | PicoDoHighPal555:\r |
ea38612f |
1486 | stmfd sp!, {r4-r10,lr}\r |
1487 | mov r10,r2 @ est\r |
b2305d08 |
1488 | mov r1, #0\r |
88fd63ad |
1489 | ldr r8, [r10, #OFS_EST_Pico]\r |
cc68a136 |
1490 | \r |
b2305d08 |
1491 | PicoDoHighPal555_nopush:\r |
a39d8ba5 |
1492 | orr r9, r1, r0, lsl #31 @ 0:called from FinalizeLine555, 31: s/h\r |
b2305d08 |
1493 | \r |
88fd63ad |
1494 | add r0, r10, #OFS_EST_HighPal\r |
b2305d08 |
1495 | \r |
cc68a136 |
1496 | mov r1, #0\r |
88fd63ad |
1497 | strb r1, [r8, #OFS_Pico_m_dirtyPal]\r |
b2305d08 |
1498 | \r |
88fd63ad |
1499 | ldr r1, [r10, #OFS_EST_PicoMem_cram]\r |
cc68a136 |
1500 | mov r2, #0x40\r |
a39d8ba5 |
1501 | mov r8, #0x0061\r |
1502 | orr r8, r8, #0x0800\r |
f4750ee0 |
1503 | orr r8, r8, r8, lsl #16\r |
a39d8ba5 |
1504 | \r |
b2305d08 |
1505 | vidConvCpyRGB565_local\r |
cc68a136 |
1506 | \r |
a39d8ba5 |
1507 | tst r9, #(1<<31)\r |
b2305d08 |
1508 | beq PicoDoHighPal555_end\r |
1509 | \r |
88fd63ad |
1510 | add r3, r10, #OFS_EST_HighPal\r |
cc68a136 |
1511 | \r |
1512 | @ shadowed pixels:\r |
1513 | mov r12, #0x008e\r |
cc68a136 |
1514 | add r4, r3, #0x40*2\r |
b2305d08 |
1515 | orr r12,r12,#0x7300\r |
cc68a136 |
1516 | add r5, r3, #0xc0*2\r |
b2305d08 |
1517 | orr r12,r12,r12,lsl #16\r |
cc68a136 |
1518 | mov lr, #0x40/4\r |
1519 | .fl_loopcpRGB555_sh:\r |
1520 | ldmia r3!, {r1,r6}\r |
1521 | subs lr, lr, #1\r |
1522 | and r1, r12, r1, lsr #1\r |
1523 | and r6, r12, r6, lsr #1\r |
1524 | stmia r4!, {r1,r6}\r |
1525 | stmia r5!, {r1,r6}\r |
1526 | bne .fl_loopcpRGB555_sh\r |
1527 | \r |
1528 | @ hilighted pixels:\r |
a39d8ba5 |
1529 | @ t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e;\r |
1530 | @ t |= (t >> 4) & 0x08610861;\r |
1531 | @ r8=0x08610861\r |
cc68a136 |
1532 | sub r3, r3, #0x40*2\r |
a39d8ba5 |
1533 | mov lr, #0x40/4\r |
cc68a136 |
1534 | .fl_loopcpRGB555_hi:\r |
a39d8ba5 |
1535 | ldmia r3!, {r1,r6}\r |
1536 | and r1, r12, r1, lsr #1\r |
1537 | and r6, r12, r6, lsr #1\r |
1538 | add r1, r12, r1\r |
1539 | add r6, r12, r6\r |
1540 | and r5, r8, r1, lsr #4\r |
1541 | and r7, r8, r6, lsr #4\r |
1542 | orr r1, r1, r5\r |
1543 | orr r6, r6, r7\r |
1544 | stmia r4!, {r1,r6}\r |
cc68a136 |
1545 | subs lr, lr, #1\r |
1546 | bne .fl_loopcpRGB555_hi\r |
b2305d08 |
1547 | mov r0, #1\r |
cc68a136 |
1548 | \r |
b2305d08 |
1549 | PicoDoHighPal555_end:\r |
a39d8ba5 |
1550 | tst r9, #1\r |
ea38612f |
1551 | ldmeqfd sp!, {r4-r10,pc}\r |
b2305d08 |
1552 | \r |
88fd63ad |
1553 | ldr r8, [r10, #OFS_EST_Pico]\r |
b2305d08 |
1554 | b FinalizeLineRGB555_pal_done\r |
1555 | \r |
1556 | \r |
ea38612f |
1557 | @ void FinalizeLine555(int sh, int line, struct PicoEState *est)\r |
1558 | \r |
1559 | .global FinalizeLine555\r |
b2305d08 |
1560 | \r |
5a681086 |
1561 | FinalizeLine555:\r |
ea38612f |
1562 | stmfd sp!, {r4-r10,lr}\r |
1563 | mov r10,r2 @ est\r |
88fd63ad |
1564 | ldr r8, [r10, #OFS_EST_Pico]\r |
b2305d08 |
1565 | \r |
88fd63ad |
1566 | ldrb r2, [r8, #OFS_Pico_m_dirtyPal]\r |
b2305d08 |
1567 | mov r1, #1\r |
1568 | tst r2, r2\r |
1569 | bne PicoDoHighPal555_nopush\r |
1570 | \r |
1571 | FinalizeLineRGB555_pal_done:\r |
88fd63ad |
1572 | add r3, r10, #OFS_EST_HighPal\r |
cc68a136 |
1573 | \r |
88fd63ad |
1574 | ldr r12, [r10, #OFS_EST_rendstatus]\r |
b2305d08 |
1575 | eors r0, r0, #1 @ sh is 0\r |
e5fa9817 |
1576 | mov lr, #0xff\r |
283fec1b |
1577 | tstne r12,#PDRAW_ACC_SPRITES\r |
e5fa9817 |
1578 | movne lr, #0x3f\r |
1579 | \r |
88fd63ad |
1580 | ldr r1, [r10, #OFS_EST_HighCol]\r |
1581 | ldr r0, [r10, #OFS_EST_DrawLineDest]\r |
ea8c405f |
1582 | add r1, r1, #8\r |
3d48f143 |
1583 | \r |
88fd63ad |
1584 | ldrb r12, [r8, #OFS_Pico_video_reg+12]\r |
cc68a136 |
1585 | mov lr, lr, lsl #1\r |
1586 | \r |
3d48f143 |
1587 | tst r12, #1\r |
1588 | movne r2, #320/8 @ len\r |
1589 | bne .fl_no32colRGB555\r |
88fd63ad |
1590 | ldr r4, [r10, #OFS_EST_PicoOpt]\r |
3d48f143 |
1591 | mov r2, #256/8\r |
1592 | ldr r4, [r4]\r |
1593 | tst r4, #0x4000\r |
1594 | bne .fl_32scale_RGB555\r |
1595 | tst r4, #0x0100\r |
1596 | addeq r0, r0, #32*2\r |
1597 | \r |
1598 | .fl_no32colRGB555:\r |
cc68a136 |
1599 | \r |
f62850ba |
1600 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1601 | @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r |
1602 | tst r0, #2\r |
1603 | bne .fl_RGB555u\r |
f62850ba |
1604 | #endif\r |
499a0be3 |
1605 | \r |
1606 | .fl_loopRGB555:\r |
cc68a136 |
1607 | ldr r12, [r1], #4\r |
1608 | ldr r7, [r1], #4\r |
1609 | \r |
1610 | and r4, lr, r12, lsl #1\r |
1611 | ldrh r4, [r3, r4]\r |
1612 | and r5, lr, r12, lsr #7\r |
1613 | ldrh r5, [r3, r5]\r |
1614 | and r6, lr, r12, lsr #15\r |
1615 | ldrh r6, [r3, r6]\r |
1616 | orr r4, r4, r5, lsl #16\r |
1617 | \r |
1618 | and r5, lr, r12, lsr #23\r |
1619 | ldrh r5, [r3, r5]\r |
1620 | and r8, lr, r7, lsl #1\r |
1621 | ldrh r8, [r3, r8]\r |
1622 | orr r5, r6, r5, lsl #16\r |
1623 | \r |
1624 | and r6, lr, r7, lsr #7\r |
1625 | ldrh r6, [r3, r6]\r |
1626 | and r12,lr, r7, lsr #15\r |
1627 | ldrh r12,[r3, r12]\r |
499a0be3 |
1628 | and r7, lr, r7, lsr #23\r |
1629 | ldrh r7, [r3, r7]\r |
cc68a136 |
1630 | orr r8, r8, r6, lsl #16\r |
1631 | \r |
cc68a136 |
1632 | subs r2, r2, #1\r |
499a0be3 |
1633 | orr r12,r12, r7, lsl #16\r |
cc68a136 |
1634 | \r |
1635 | stmia r0!, {r4,r5,r8,r12}\r |
1636 | bne .fl_loopRGB555\r |
1637 | \r |
ea38612f |
1638 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1639 | bx lr\r |
1640 | \r |
1641 | \r |
1642 | .fl_32scale_RGB555:\r |
3d48f143 |
1643 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1644 | orr r9, r9, #0x00e7\r |
1645 | \r |
f62850ba |
1646 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1647 | tst r0, #2\r |
1648 | bne .fl_32scale_RGB555u\r |
f62850ba |
1649 | #endif\r |
499a0be3 |
1650 | \r |
3d48f143 |
1651 | .fl_loop32scale_RGB555:\r |
1652 | ldr r12, [r1], #4\r |
1653 | ldr r7, [r1], #4\r |
cc68a136 |
1654 | \r |
3d48f143 |
1655 | and r4, lr, r12,lsl #1\r |
1656 | ldrh r4, [r3, r4]\r |
1657 | and r5, lr, r12,lsr #7\r |
1658 | ldrh r5, [r3, r5]\r |
1659 | and r4, r4, r9, lsl #2\r |
1660 | orr r4, r4, r4, lsl #14 @ r4[31:16] = 1/4 pix_s 0\r |
1661 | and r5, r5, r9, lsl #2\r |
1662 | sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r |
1663 | add r4, r4, r6, lsl #16 @ pix_d 0, 1\r |
1664 | and r6, lr, r12,lsr #15\r |
1665 | ldrh r6, [r3, r6]\r |
1666 | and r12,lr, r12,lsr #23\r |
1667 | ldrh r12,[r3, r12]\r |
1668 | and r6, r6, r9, lsl #2\r |
1669 | add r5, r5, r6\r |
1670 | mov r5, r5, lsr #1\r |
1671 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1672 | orr r5, r5, r6, lsl #16\r |
1673 | \r |
1674 | and r6, lr, r7, lsl #1\r |
1675 | ldrh r6, [r3, r6]\r |
1676 | and r12,r12,r9, lsl #2\r |
1677 | add r5, r5, r12,lsl #14 @ pix_d 2, 3\r |
1678 | and r6, r6, r9, lsl #2\r |
1679 | orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r |
1680 | \r |
1681 | and r12,lr, r7, lsr #7\r |
1682 | ldrh r12,[r3, r12]\r |
1683 | and r10,lr, r7, lsr #15\r |
1684 | ldrh r10,[r3, r10]\r |
1685 | and r12,r12,r9, lsl #2\r |
1686 | sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r |
1687 | add r8, r8, r6, lsr #18\r |
1688 | and r7, lr, r7, lsr #23\r |
1689 | ldrh r7, [r3, r7]\r |
1690 | and r10,r10,r9, lsl #2\r |
1691 | orr r8, r8, r10,lsl #15\r |
1692 | add r8, r8, r12,lsl #15 @ pix_d 6, 7\r |
1693 | sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r |
1694 | and r7, r7, r9, lsl #2\r |
1695 | add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r |
1696 | orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r |
1697 | \r |
1698 | subs r2, r2, #1\r |
1699 | \r |
1700 | stmia r0!, {r4,r5,r6,r8,r10}\r |
1701 | bne .fl_loop32scale_RGB555\r |
1702 | \r |
ea38612f |
1703 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1704 | bx lr\r |
1705 | \r |
f62850ba |
1706 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1707 | @ unaligned versions of loops\r |
9839d126 |
1708 | @ warning: starts drawing 2bytes before dst\r |
499a0be3 |
1709 | \r |
1710 | .fl_RGB555u:\r |
9839d126 |
1711 | sub r0, r0, #2 @ initial adjustment\r |
1712 | mov r8, #0\r |
499a0be3 |
1713 | \r |
1714 | .fl_loopRGB555u:\r |
1715 | ldr r12, [r1], #4\r |
1716 | ldr r7, [r1], #4\r |
1717 | \r |
9839d126 |
1718 | and r6, lr, r12,lsl #1\r |
1719 | ldrh r6, [r3, r6]\r |
1720 | and r5, lr, r12,lsr #7\r |
499a0be3 |
1721 | ldrh r5, [r3, r5]\r |
9839d126 |
1722 | orr r4, r8, r6, lsl #16\r |
499a0be3 |
1723 | \r |
9839d126 |
1724 | and r6, lr, r12,lsr #15\r |
499a0be3 |
1725 | ldrh r6, [r3, r6]\r |
9839d126 |
1726 | and r8, lr, r12,lsr #23\r |
499a0be3 |
1727 | ldrh r8, [r3, r8]\r |
9839d126 |
1728 | orr r5, r5, r6, lsl #16\r |
499a0be3 |
1729 | \r |
9839d126 |
1730 | and r6, lr, r7, lsl #1\r |
499a0be3 |
1731 | ldrh r6, [r3, r6]\r |
9839d126 |
1732 | and r12,lr, r7, lsr #7\r |
499a0be3 |
1733 | ldrh r12,[r3, r12]\r |
9839d126 |
1734 | orr r6, r8, r6, lsl #16\r |
1735 | \r |
1736 | and r8, lr, r7, lsr #15\r |
499a0be3 |
1737 | ldrh r8, [r3, r8]\r |
9839d126 |
1738 | and r7, lr, r7, lsr #23\r |
499a0be3 |
1739 | \r |
1740 | subs r2, r2, #1\r |
9839d126 |
1741 | orr r12,r12,r8, lsl #16\r |
1742 | ldrh r8, [r3, r7]\r |
1743 | \r |
1744 | stmia r0!, {r4,r5,r6,r12}\r |
499a0be3 |
1745 | bne .fl_loopRGB555u\r |
1746 | \r |
1747 | strh r8, [r0], #2\r |
1748 | \r |
ea38612f |
1749 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1750 | bx lr\r |
1751 | \r |
1752 | \r |
1753 | .fl_32scale_RGB555u:\r |
9839d126 |
1754 | sub r0, r0, #2 @ initial adjustment\r |
1755 | mov r4, #0\r |
499a0be3 |
1756 | \r |
1757 | @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1758 | .fl_loop32scale_RGB555u:\r |
1759 | ldr r12, [r1], #4\r |
1760 | ldr r7, [r1], #4\r |
1761 | \r |
9839d126 |
1762 | and r6, lr, r12,lsl #1\r |
1763 | ldrh r6, [r3, r6]\r |
499a0be3 |
1764 | and r5, lr, r12,lsr #7\r |
1765 | ldrh r5, [r3, r5]\r |
9839d126 |
1766 | and r6, r6, r9, lsl #2\r |
1767 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
499a0be3 |
1768 | \r |
1769 | and r5, r5, r9, lsl #2\r |
9839d126 |
1770 | sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1\r |
1771 | add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)\r |
1772 | orr r5, r6, r5, lsl #15\r |
499a0be3 |
1773 | \r |
1774 | and r6, lr, r12,lsr #15\r |
1775 | ldrh r6, [r3, r6]\r |
1776 | and r12,lr, r12,lsr #23\r |
1777 | ldrh r12,[r3, r12]\r |
1778 | and r6, r6, r9, lsl #2\r |
9839d126 |
1779 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
499a0be3 |
1780 | \r |
9839d126 |
1781 | and r8, lr, r7, lsl #1\r |
1782 | ldrh r8, [r3, r8]\r |
1783 | and r10,lr, r7, lsr #7\r |
1784 | ldrh r10,[r3, r10]\r |
499a0be3 |
1785 | and r12,r12,r9, lsl #2\r |
9839d126 |
1786 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1787 | add r6, r6, r12,lsr #2\r |
1788 | orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4\r |
499a0be3 |
1789 | \r |
9839d126 |
1790 | and r8, r8, r9, lsl #2\r |
1791 | and r10,r10,r9, lsl #2\r |
1792 | sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5\r |
1793 | orr r8, r8, r8, lsl #14\r |
1794 | add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6\r |
1795 | and r12,lr, r7, lsr #15\r |
499a0be3 |
1796 | ldrh r12,[r3, r12]\r |
499a0be3 |
1797 | and r7, lr, r7, lsr #23\r |
1798 | ldrh r7, [r3, r7]\r |
9839d126 |
1799 | and r12,r12,r9, lsl #2\r |
1800 | add r10,r10,r12\r |
1801 | mov r10,r10, lsr #1\r |
1802 | sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6\r |
1803 | orr r10,r10,r12,lsl #16\r |
499a0be3 |
1804 | and r7, r7, r9, lsl #2\r |
9839d126 |
1805 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
499a0be3 |
1806 | \r |
1807 | subs r2, r2, #1\r |
1808 | \r |
1809 | stmia r0!, {r4,r5,r6,r8,r10}\r |
9839d126 |
1810 | mov r4, r7\r |
499a0be3 |
1811 | bne .fl_loop32scale_RGB555u\r |
1812 | \r |
9839d126 |
1813 | strh r4, [r0], #2\r |
1814 | \r |
ea38612f |
1815 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1816 | bx lr\r |
1817 | \r |
f62850ba |
1818 | #endif /* UNALIGNED_DRAWLINEDEST */\r |
499a0be3 |
1819 | \r |
cc68a136 |
1820 | \r |
1821 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1822 | \r |
1823 | @ utility\r |
1824 | .global blockcpy @ void *dst, void *src, size_t n\r |
1825 | \r |
1826 | blockcpy:\r |
1827 | stmfd sp!, {r4,r5}\r |
1828 | mov r2, r2, lsr #4\r |
1829 | blockcpy_loop:\r |
1830 | ldmia r1!, {r3-r5,r12}\r |
1831 | subs r2, r2, #1\r |
1832 | stmia r0!, {r3-r5,r12}\r |
1833 | bne blockcpy_loop\r |
1834 | ldmfd sp!, {r4,r5}\r |
1835 | bx lr\r |
1836 | \r |
1837 | \r |
1838 | .global blockcpy_or @ void *dst, void *src, size_t n, int pat\r |
1839 | \r |
1840 | blockcpy_or:\r |
1841 | stmfd sp!, {r4-r6}\r |
1842 | orr r3, r3, r3, lsl #8\r |
1843 | orr r3, r3, r3, lsl #16\r |
1844 | mov r2, r2, lsr #4\r |
1845 | blockcpy_loop_or:\r |
1846 | ldmia r1!, {r4-r6,r12}\r |
1847 | subs r2, r2, #1\r |
1848 | orr r4, r4, r3\r |
1849 | orr r5, r5, r3\r |
1850 | orr r6, r6, r3\r |
1851 | orr r12,r12,r3\r |
1852 | stmia r0!, {r4-r6,r12}\r |
1853 | bne blockcpy_loop_or\r |
1854 | ldmfd sp!, {r4-r6}\r |
1855 | bx lr\r |
1856 | \r |
cff531af |
1857 | @ vim:filetype=armasm\r |