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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 plane_sh, int *hcache, int cellskip, int maxcells,\r |
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 |
d01fa204 |
290 | ldr r11, [r12, #OFS_Pico_video]\r |
cc68a136 |
291 | mov r8, #1\r |
292 | \r |
83c093a4 |
293 | ldrb r7, [r11, #16] @ ??vv??hh\r |
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294 | \r |
295 | mov r6, r1 @ hcache\r |
83c093a4 |
296 | orr r9, r3, r0, lsl #30\r |
297 | orr r9, r9, r2, lsl #8 @ r9=sh[31]|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 |
306 | bicgt r1, r1, #0xff00 @ r1=ymask=(height<<8)|0xff; ...; // Y Mask in pixels\r |
307 | \r |
308 | add r10, r10, #5\r |
309 | cmp r10, #7\r |
310 | subge r10, r10, #1 @ r10=shift[width] (5,6,6,7)\r |
311 | \r |
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312 | ldr r2, [r12, #OFS_DrawScanline]\r |
313 | ldr lr, [r12, #OFS_Pico_vram]\r |
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314 | \r |
315 | @ Find name table:\r |
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316 | ands r0, r0, #1\r |
cc68a136 |
317 | ldreqb r12, [r11, #2]\r |
318 | ldrneb r12, [r11, #4]\r |
319 | \r |
d01fa204 |
320 | @ calculate xmask:\r |
321 | mov r5, r8, lsl r10\r |
322 | sub r5, r5, #1 @ r5=xmask\r |
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323 | \r |
324 | moveq r12, r12, lsl #10\r |
325 | movne r12, r12, lsl #13\r |
326 | and r12, r12, #(7<<13) @ r12=(ts->nametab<<1) (halfword compliant)\r |
327 | \r |
328 | ldrh r8, [r11, #12]\r |
329 | ldrb r7, [r11, #11]\r |
cc68a136 |
330 | \r |
331 | mov r4, r8, lsr #8 @ pvid->reg[13]\r |
332 | mov r4, r4, lsl #10 @ htab=pvid->reg[13]<<9; (halfwords)\r |
333 | tst r7, #2\r |
b6d7ac70 |
334 | addne r4, r4, r2, lsl #2 @ htab+=DrawScanline<<1; // Offset by line\r |
cc68a136 |
335 | tst r7, #1\r |
336 | biceq r4, r4, #0x1f @ htab&=~0xf; // Offset by tile\r |
337 | add r4, r4, r0, lsl #1 @ htab+=plane\r |
338 | bic r4, r4, #0x00ff0000 @ just in case\r |
339 | ldrh r3, [lr, r4] @ r3=hscroll\r |
340 | \r |
341 | tst r7, #4\r |
342 | bne .DrawStrip_vsscroll\r |
343 | \r |
344 | @ Get vertical scroll value:\r |
345 | add r7, lr, #0x012000\r |
346 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
347 | ldr r7, [r7]\r |
348 | \r |
349 | tst r8, #2\r |
350 | tstne r8, #4\r |
351 | bne .DrawStrip_interlace\r |
352 | \r |
353 | tst r0, r0\r |
354 | movne r7, r7, lsr #16\r |
355 | \r |
356 | @ Find the line in the name table\r |
357 | add r2, r2, r7\r |
358 | and r2, r2, r1\r |
359 | mov r4, r2, lsr #3\r |
360 | add r10, r10, #1 @ shift[width]++\r |
361 | add r12, r12, r4, lsl r10 @ nametab+=(ts.line>>3)<<shift[width];\r |
362 | \r |
363 | @ ldmia r0, {r1,r2,r3,r5,r6,r9} @ r2=line, r3=ts->hscroll, r5=ts->xmask, r6=ts->hc, r9=ts->cells\r |
cc68a136 |
364 | \r |
365 | and r10,r2, #7\r |
366 | mov r10,r10, lsl #1 @ r10=ty=(ts->line&7)<<1;\r |
367 | orr r10,r10, r9, lsl #24\r |
368 | \r |
369 | rsb r8, r3, #0\r |
370 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
371 | \r |
372 | sub r1, r3, #1\r |
373 | and r1, r1, #7\r |
374 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
375 | \r |
376 | tst r9, #1<<31\r |
377 | mov r3, #0\r |
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378 | orrne r10,r10, #1<<23 @ r10=(cells<<24|sh<<23|hi_not_empty<<22|had_output<<21|ty)\r |
cc68a136 |
379 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
380 | \r |
cc68a136 |
381 | cmp r7, #8\r |
382 | addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll\r |
383 | \r |
83c093a4 |
384 | and r9, r9, #0xff00\r |
385 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
386 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
387 | sub r10,r10,r9, lsl #16 @ cells-=cellskip\r |
83c093a4 |
388 | \r |
cc68a136 |
389 | @ cache some stuff to avoid mem access\r |
4981de9c |
390 | ldr r11,[sp, #9*4] @ est\r |
cc68a136 |
391 | mov r0, #0xf\r |
4981de9c |
392 | ldr r11,[r11, #OFS_HighCol]\r |
ea8c405f |
393 | \r |
394 | mvn r9, #0 @ r9=prevcode=-1\r |
4981de9c |
395 | add r1, r11, r7 @ r1=pdest\r |
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396 | \r |
397 | \r |
398 | @ r4 & r7 are scratch in this loop\r |
399 | .dsloop_subr1:\r |
400 | sub r1, r1, #8\r |
401 | .dsloop: @ 40-41 times\r |
402 | subs r10,r10, #0x01000000\r |
403 | bmi .dsloop_exit\r |
404 | \r |
405 | .dsloop_enter:\r |
406 | and r7, r5, r8\r |
407 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
408 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
409 | \r |
410 | add r1, r1, #8\r |
411 | add r8, r8, #1\r |
412 | \r |
413 | tst r7, #0x8000\r |
414 | bne .DrawStrip_hiprio\r |
415 | \r |
416 | cmp r7, r9\r |
417 | beq .DrawStrip_samecode @ we know stuff about this tile already\r |
418 | \r |
419 | mov r9, r7 @ remember code\r |
740da8c6 |
420 | orr r10, r10, #1<<21 @ seen non hi-prio tile\r |
cc68a136 |
421 | \r |
422 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
423 | mov r2, r2, lsl #1\r |
424 | add r2, r2, r10, lsl #17\r |
425 | mov r2, r2, lsr #17\r |
426 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
427 | \r |
428 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
429 | \r |
430 | bic r7, r3, #0x3f\r |
431 | and r3, r9, #0x6000\r |
432 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
433 | \r |
434 | .DrawStrip_samecode:\r |
435 | tst r2, r2\r |
436 | beq .dsloop @ tileline blank\r |
437 | \r |
438 | cmp r2, r2, ror #4\r |
439 | beq .DrawStrip_SingleColor @ tileline singlecolor \r |
440 | \r |
441 | tst r9, #0x0800\r |
7a7c6476 |
442 | bne .DrawStrip_TileFlip\r |
cc68a136 |
443 | \r |
444 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
445 | .DrawStrip_TileNorm:\r |
446 | TileNorm r0\r |
447 | b .dsloop\r |
448 | \r |
7a7c6476 |
449 | .DrawStrip_TileFlip:\r |
450 | TileFlip r0\r |
451 | b .dsloop\r |
452 | \r |
cc68a136 |
453 | .DrawStrip_SingleColor:\r |
454 | and r4, r2, #0xf\r |
455 | orr r4, r3, r4\r |
456 | orr r4, r4, r4, lsl #8\r |
457 | tst r1, #1 @ not aligned?\r |
458 | strneb r4, [r1], #1\r |
459 | streqh r4, [r1], #2\r |
460 | strh r4, [r1], #2\r |
461 | strh r4, [r1], #2\r |
462 | strh r4, [r1], #2\r |
463 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
464 | b .dsloop_subr1\r |
465 | \r |
cc68a136 |
466 | .DrawStrip_hiprio_maybempt:\r |
467 | cmp r7, r9\r |
468 | beq .dsloop @ must've been empty, otherwise we wouldn't get here\r |
469 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
470 | mov r2, r2, lsl #1\r |
471 | add r2, r2, r10, lsl #17\r |
472 | mov r2, r2, lsr #17\r |
473 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
474 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
475 | mov r9, r7 @ remember code\r |
476 | tst r2, r2\r |
740da8c6 |
477 | beq .dsloop\r |
478 | orr r10, r10, #1<<22\r |
479 | \r |
480 | .DrawStrip_hiprio:\r |
481 | tst r10, #0x00c00000\r |
482 | beq .DrawStrip_hiprio_maybempt\r |
483 | sub r0, r1, r11\r |
484 | orr r7, r7, r0, lsl #16\r |
485 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
486 | tst r7, #0x1000\r |
487 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
488 | str r7, [r6], #4 @ cache hi priority tile\r |
489 | mov r0, #0xf\r |
cc68a136 |
490 | b .dsloop\r |
491 | \r |
492 | .dsloop_exit:\r |
740da8c6 |
493 | tst r10, #1<<21 @ seen non hi-prio tile\r |
d01fa204 |
494 | ldr r1, [sp, #9*4] @ est\r |
cc68a136 |
495 | mov r0, #0\r |
d01fa204 |
496 | ldreq r2, [r1, #OFS_rendstatus]\r |
cc68a136 |
497 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
498 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
d01fa204 |
499 | streq r2, [r1, #OFS_rendstatus]\r |
cc68a136 |
500 | \r |
501 | ldmfd sp!, {r4-r11,lr}\r |
502 | bx lr\r |
503 | \r |
6d7acf9e |
504 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
505 | \r |
506 | .DrawStrip_vsscroll:\r |
6d7acf9e |
507 | rsb r8, r3, #0\r |
508 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
7b802576 |
509 | bic r8, r8, #0x3fc00000\r |
510 | orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r |
cc68a136 |
511 | \r |
d01fa204 |
512 | ldr r11, [sp, #9*4] @ est\r |
6d7acf9e |
513 | orr r5, r1, r10, lsl #24\r |
d01fa204 |
514 | ldr r4, [r11, #OFS_DrawScanline]\r |
6d7acf9e |
515 | sub r1, r3, #1\r |
516 | orr r5, r5, r4, lsl #16 @ r5=(shift_width[31:24]|scanline[23:16]|ymask[15:0])\r |
517 | and r1, r1, #7\r |
518 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
cc68a136 |
519 | \r |
6d7acf9e |
520 | mov r10,r9, lsl #16\r |
83c093a4 |
521 | tst r0, #1\r |
6d7acf9e |
522 | orrne r10,r10, #0x8000\r |
523 | tst r9, #1<<31\r |
524 | mov r3, #0\r |
525 | orr r10,r10, #0xff000000 @ will be adjusted on entering loop\r |
83c093a4 |
526 | 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 |
527 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
cc68a136 |
528 | \r |
83c093a4 |
529 | cmp r7, #8\r |
530 | subne r10,r10, #0x01000000 @ have hscroll, start with negative cell\r |
531 | \r |
532 | and r9, r9, #0xff00\r |
533 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
534 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
535 | add r10,r10,r9, lsl #16 @ cell+=cellskip\r |
cc68a136 |
536 | \r |
6d7acf9e |
537 | @ cache some stuff to avoid mem access\r |
4981de9c |
538 | ldr r11,[sp, #9*4] @ est\r |
ea8c405f |
539 | mov r0, #0xf\r |
4981de9c |
540 | ldr r11,[r11, #OFS_HighCol]\r |
6d7acf9e |
541 | \r |
ea8c405f |
542 | mvn r9, #0 @ r9=prevcode=-1\r |
543 | add r1, r11, r7 @ r1=pdest\r |
6d7acf9e |
544 | \r |
545 | @ r4 & r7 are scratch in this loop\r |
546 | .dsloop_vs_subr1:\r |
547 | sub r1, r1, #8\r |
548 | .dsloop_vs: @ 40-41 times\r |
549 | add r10,r10, #0x01000000\r |
550 | and r4, r10, #0x003f0000\r |
551 | cmp r4, r10, asr #8\r |
740da8c6 |
552 | ble .dsloop_vs_exit\r |
6d7acf9e |
553 | \r |
554 | @ calc offset and read tileline code to r7, also calc ty\r |
555 | add r7, lr, #0x012000\r |
556 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
557 | add r7, r7, r10,asr #23 @ vsram + ((cell&~1)<<1)\r |
558 | bic r7, r7, #3\r |
559 | tst r10,#0x8000 @ plane1?\r |
560 | addne r7, r7, #2\r |
561 | ldrh r7, [r7] @ r7=vscroll\r |
562 | \r |
563 | bic r10,r10,#0xff @ clear old ty\r |
7b802576 |
564 | and r4, r5, #0xff0000 @ scanline\r |
565 | add r4, r4, r7, lsl #16 @ ... += vscroll\r |
566 | and r4, r4, r5, lsl #16 @ ... &= ymask\r |
6d7acf9e |
567 | and r7, r4, #0x70000\r |
568 | orr r10,r10,r7, lsr #15 @ new ty\r |
569 | \r |
570 | mov r4, r4, lsr #19\r |
571 | mov r7, r5, lsr #24\r |
572 | mov r4, r4, lsl r7 @ nametabadd\r |
573 | \r |
574 | and r7, r8, r8, lsr #25\r |
575 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
576 | add r7, r7, r4, lsl #1\r |
577 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
578 | \r |
579 | add r1, r1, #8\r |
580 | add r8, r8, #1\r |
581 | \r |
582 | tst r7, #0x8000\r |
583 | bne .DrawStrip_vs_hiprio\r |
584 | \r |
585 | cmp r7, r9\r |
586 | beq .DrawStrip_vs_samecode @ we know stuff about this tile already\r |
587 | \r |
588 | mov r9, r7 @ remember code\r |
7b802576 |
589 | orr r8, r8, #(1<<24)@ seen non hi-prio tile\r |
6d7acf9e |
590 | \r |
591 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
592 | mov r2, r2, lsl #1\r |
593 | add r2, r2, r10, lsl #17\r |
594 | mov r2, r2, lsr #17\r |
595 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
596 | \r |
597 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
598 | \r |
599 | bic r7, r3, #0x3f\r |
600 | and r3, r9, #0x6000\r |
601 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
602 | \r |
603 | .DrawStrip_vs_samecode:\r |
604 | tst r2, r2\r |
605 | beq .dsloop_vs @ tileline blank\r |
606 | \r |
607 | cmp r2, r2, ror #4\r |
608 | beq .DrawStrip_vs_SingleColor @ tileline singlecolor \r |
609 | \r |
610 | tst r9, #0x0800\r |
7a7c6476 |
611 | bne .DrawStrip_vs_TileFlip\r |
6d7acf9e |
612 | \r |
613 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
6d7acf9e |
614 | .DrawStrip_vs_TileNorm:\r |
615 | TileNorm r0\r |
616 | b .dsloop_vs\r |
617 | \r |
7a7c6476 |
618 | .DrawStrip_vs_TileFlip:\r |
619 | TileFlip r0\r |
620 | b .dsloop_vs\r |
621 | \r |
6d7acf9e |
622 | .DrawStrip_vs_SingleColor:\r |
623 | and r4, r2, #0xf\r |
624 | orr r4, r3, r4\r |
625 | orr r4, r4, r4, lsl #8\r |
626 | tst r1, #1 @ not aligned?\r |
627 | strneb r4, [r1], #1\r |
628 | streqh r4, [r1], #2\r |
629 | strh r4, [r1], #2\r |
630 | strh r4, [r1], #2\r |
631 | strh r4, [r1], #2\r |
632 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
633 | b .dsloop_vs_subr1\r |
634 | \r |
635 | .DrawStrip_vs_hiprio:\r |
636 | tst r10, #0x00c00000\r |
637 | beq .DrawStrip_vs_hiprio_maybempt\r |
638 | sub r0, r1, r11\r |
639 | orr r7, r7, r0, lsl #16\r |
640 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
641 | tst r7, #0x1000\r |
642 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
643 | str r7, [r6], #4 @ cache hi priority tile\r |
644 | mov r0, #0xf\r |
645 | b .dsloop_vs\r |
646 | \r |
647 | .DrawStrip_vs_hiprio_maybempt:\r |
648 | cmp r7, r9\r |
649 | beq .dsloop_vs @ must've been empty, otherwise we wouldn't get here\r |
650 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
651 | mov r2, r2, lsl #1\r |
652 | add r2, r2, r10, lsl #17\r |
653 | mov r2, r2, lsr #17\r |
654 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
655 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
656 | mov r9, r7 @ remember code\r |
657 | tst r2, r2\r |
658 | orrne r10, r10, #1<<22\r |
659 | bne .DrawStrip_vs_hiprio\r |
660 | b .dsloop_vs\r |
661 | \r |
740da8c6 |
662 | .dsloop_vs_exit:\r |
7b802576 |
663 | tst r8, #(1<<24) @ seen non hi-prio tile\r |
d01fa204 |
664 | ldr r1, [sp, #9*4] @ est\r |
740da8c6 |
665 | mov r0, #0\r |
d01fa204 |
666 | ldreq r2, [r1, #OFS_rendstatus]\r |
740da8c6 |
667 | str r0, [r6] @ terminate the cache list\r |
283fec1b |
668 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
d01fa204 |
669 | streq r2, [r1, #OFS_rendstatus]\r |
740da8c6 |
670 | \r |
671 | ldmfd sp!, {r4-r11,lr}\r |
672 | bx lr\r |
673 | \r |
6d7acf9e |
674 | \r |
675 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
cc68a136 |
676 | \r |
677 | @ interlace mode 2? Sonic 2?\r |
678 | .DrawStrip_interlace:\r |
679 | tst r0, r0\r |
680 | moveq r7, r7, lsl #21\r |
681 | movne r7, r7, lsl #5\r |
682 | \r |
683 | @ Find the line in the name table\r |
b6d7ac70 |
684 | add r2, r7, r2, lsl #22 @ r2=(vscroll+(DrawScanline<<1))<<21 (11 bits);\r |
cc68a136 |
685 | orr r1, r1, #0x80000000\r |
686 | and r2, r2, r1, ror #10 @ &((ymask<<1)|1)<<21;\r |
687 | mov r2, r2, lsr #21\r |
688 | mov r4, r2, lsr #4\r |
689 | mov r12, r12, lsr #1 @ halfwords\r |
690 | add r0, r12, r4, lsl r10 @ nametab+=(ts.line>>4)<<shift[width];\r |
691 | and r9, r9, #0xff\r |
692 | \r |
693 | sub sp, sp, #6*4\r |
694 | stmia sp, {r0,r2,r3,r5,r6,r9}\r |
695 | \r |
696 | mov r0, sp\r |
697 | bl DrawStripInterlace @ struct TileStrip *ts\r |
698 | \r |
699 | add sp, sp, #6*4\r |
700 | ldmfd sp!, {r4-r11,lr}\r |
701 | bx lr\r |
702 | \r |
703 | .pool\r |
704 | \r |
705 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
706 | \r |
4981de9c |
707 | @ void BackFill(int reg7, int sh, struct PicoEState *est)\r |
cc68a136 |
708 | \r |
4981de9c |
709 | .global BackFill\r |
cc68a136 |
710 | \r |
711 | BackFill:\r |
712 | stmfd sp!, {r4-r9,lr}\r |
713 | \r |
ea8c405f |
714 | mov r0, r0, lsl #26\r |
4981de9c |
715 | ldr lr, [r2, #OFS_HighCol]\r |
ea8c405f |
716 | mov r0, r0, lsr #26\r |
717 | add lr, lr, #8\r |
ea8c405f |
718 | \r |
cc68a136 |
719 | orr r0, r0, r1, lsl #6\r |
720 | orr r0, r0, r0, lsl #8\r |
721 | orr r0, r0, r0, lsl #16\r |
722 | \r |
723 | mov r1, r0\r |
724 | mov r2, r0\r |
725 | mov r3, r0\r |
726 | mov r4, r0\r |
727 | mov r5, r0\r |
728 | mov r6, r0\r |
729 | mov r7, r0\r |
730 | \r |
731 | @ go go go!\r |
732 | stmia lr!, {r0-r7} @ 10*8*4\r |
733 | stmia lr!, {r0-r7}\r |
734 | stmia lr!, {r0-r7}\r |
735 | stmia lr!, {r0-r7}\r |
736 | stmia lr!, {r0-r7}\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 | \r |
4981de9c |
743 | ldmfd sp!, {r4-r9,lr}\r |
744 | bx lr\r |
cc68a136 |
745 | \r |
746 | \r |
747 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
748 | \r |
d01fa204 |
749 | @ void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)\r |
cc68a136 |
750 | \r |
d01fa204 |
751 | .global DrawTilesFromCache\r |
cc68a136 |
752 | \r |
753 | DrawTilesFromCache:\r |
d01fa204 |
754 | stmfd sp!, {r4-r9,r11,lr}\r |
cc68a136 |
755 | \r |
cc68a136 |
756 | @ cache some stuff to avoid mem access\r |
4981de9c |
757 | ldr r11,[r3, #OFS_HighCol]\r |
cc68a136 |
758 | mov r12,#0xf\r |
d01fa204 |
759 | ldr lr, [r3, #OFS_Pico_vram]\r |
760 | mov r9, r3 @ est\r |
cc68a136 |
761 | \r |
740da8c6 |
762 | mvn r5, #0 @ r5=prevcode=-1\r |
7a7c6476 |
763 | ands r8, r1, #1\r |
764 | orr r8, r8, r2, lsl #1\r |
740da8c6 |
765 | bne .dtfc_check_rendflags\r |
766 | \r |
cc68a136 |
767 | @ scratch: r4, r7\r |
768 | .dtfc_loop:\r |
769 | ldr r6, [r0], #4 @ read code\r |
770 | movs r1, r6, lsr #16 @ r1=dx;\r |
d01fa204 |
771 | ldmeqfd sp!, {r4-r9,r11,pc} @ dx is never zero, this must be a terminator, return\r |
7a7c6476 |
772 | bic r4, r1, #0xfe00\r |
773 | add r1, r11, r4 @ r1=pdest\r |
cc68a136 |
774 | \r |
775 | mov r7, r6, lsl #16\r |
776 | cmp r5, r7, lsr #16\r |
777 | beq .dtfc_samecode @ if (code==prevcode)\r |
778 | \r |
779 | mov r5, r7, lsr #16\r |
780 | \r |
781 | mov r2, r5, lsl #21\r |
782 | mov r2, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4;\r |
783 | add r2, r2, r6, lsr #25 @ addr+=ty\r |
784 | \r |
785 | and r3, r5, #0x6000\r |
786 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
787 | \r |
788 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
789 | \r |
790 | .dtfc_samecode:\r |
7a7c6476 |
791 | rsbs r4, r4, r8, lsr #1\r |
792 | bmi .dtfc_cut_tile\r |
793 | \r |
794 | tst r8, #1\r |
cc68a136 |
795 | bne .dtfc_shadow\r |
796 | \r |
797 | tst r2, r2\r |
798 | beq .dtfc_loop\r |
799 | \r |
800 | cmp r2, r2, ror #4\r |
801 | beq .dtfc_SingleColor @ tileline singlecolor \r |
802 | \r |
803 | tst r5, #0x0800\r |
7a7c6476 |
804 | bne .dtfc_TileFlip\r |
cc68a136 |
805 | \r |
806 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
807 | .dtfc_TileNorm:\r |
808 | TileNorm r12\r |
809 | b .dtfc_loop\r |
810 | \r |
7a7c6476 |
811 | .dtfc_TileFlip:\r |
812 | TileFlip r12\r |
813 | b .dtfc_loop\r |
814 | \r |
cc68a136 |
815 | .dtfc_SingleColor:\r |
816 | and r4, r2, #0xf\r |
817 | orr r4, r3, r4\r |
818 | orr r4, r4, r4, lsl #8\r |
819 | tst r1, #1 @ not aligned?\r |
820 | strneb r4, [r1], #1\r |
821 | streqh r4, [r1], #2\r |
822 | strh r4, [r1], #2\r |
823 | strh r4, [r1], #2\r |
824 | strh r4, [r1], #2\r |
825 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
826 | b .dtfc_loop\r |
827 | \r |
828 | .dtfc_shadow:\r |
829 | tst r2, r2\r |
830 | beq .dtfc_shadow_blank\r |
831 | \r |
832 | cmp r2, r2, ror #4\r |
833 | beq .dtfc_SingleColor @ tileline singlecolor \r |
834 | \r |
835 | tst r5, #0x0800\r |
7a7c6476 |
836 | bne .dtfc_TileFlipShHP\r |
cc68a136 |
837 | \r |
838 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
839 | .dtfc_TileNormShHP:\r |
840 | TileNormShHP\r |
841 | b .dtfc_loop\r |
842 | \r |
7a7c6476 |
843 | .dtfc_TileFlipShHP:\r |
844 | TileFlipShHP\r |
845 | b .dtfc_loop\r |
846 | \r |
cc68a136 |
847 | .dtfc_shadow_blank:\r |
07abbab1 |
848 | tst r1, #1\r |
849 | ldrneb r4, [r1]\r |
bfa12428 |
850 | mov r6, #0xbf\r |
851 | and r4, r4, #0xbf\r |
07abbab1 |
852 | strneb r4, [r1], #1\r |
853 | ldrh r4, [r1]\r |
854 | orr r6, r6, r6, lsl #8\r |
855 | and r4, r4, r6\r |
856 | strh r4, [r1], #2\r |
857 | ldrh r4, [r1]\r |
858 | and r4, r4, r6\r |
859 | strh r4, [r1], #2\r |
860 | ldrh r4, [r1]\r |
861 | and r4, r4, r6\r |
862 | strh r4, [r1], #2\r |
863 | ldrh r4, [r1]\r |
864 | and r4, r4, r6\r |
865 | streqh r4, [r1]\r |
866 | strneb r4, [r1]\r |
cc68a136 |
867 | b .dtfc_loop\r |
868 | \r |
7a7c6476 |
869 | .dtfc_cut_tile:\r |
870 | add r4, r4, #7 @ 0-6\r |
871 | mov r4, r4, lsl #2\r |
872 | mov r12,#0xf<<28\r |
873 | mov r12,r12,asr r4\r |
874 | mov r2, r2, ror #16\r |
875 | tst r5, #0x0800 @ flipped?\r |
876 | mvnne r12,r12\r |
877 | and r2, r2, r12\r |
878 | mov r2, r2, ror #16\r |
879 | mov r12,#0xf\r |
880 | tst r8, #1\r |
881 | bne .dtfc_shadow\r |
882 | tst r2, r2\r |
883 | beq .dtfc_loop\r |
884 | tst r5, #0x0800\r |
885 | beq .dtfc_TileNorm\r |
886 | b .dtfc_TileFlip\r |
887 | \r |
740da8c6 |
888 | @ check if we have detected layer covered with hi-prio tiles:\r |
889 | .dtfc_check_rendflags:\r |
d01fa204 |
890 | ldr r2, [r9, #OFS_rendstatus]\r |
283fec1b |
891 | tst r2, #(PDRAW_PLANE_HI_PRIO|PDRAW_SHHI_DONE)\r |
740da8c6 |
892 | beq .dtfc_loop\r |
7a7c6476 |
893 | bic r8, r8, #1 @ sh/hi mode off\r |
283fec1b |
894 | tst r2, #PDRAW_SHHI_DONE\r |
740da8c6 |
895 | bne .dtfc_loop @ already processed\r |
283fec1b |
896 | orr r2, r2, #PDRAW_SHHI_DONE\r |
d01fa204 |
897 | str r2, [r9, #OFS_rendstatus]\r |
740da8c6 |
898 | \r |
899 | add r1, r11,#8\r |
07abbab1 |
900 | mov r3, #320/4/4\r |
bfa12428 |
901 | mov r6, #0xbf\r |
740da8c6 |
902 | orr r6, r6, r6, lsl #8\r |
903 | orr r6, r6, r6, lsl #16\r |
904 | .dtfc_loop_shprep:\r |
07abbab1 |
905 | ldmia r1, {r2,r4,r5,r7}\r |
740da8c6 |
906 | subs r3, r3, #1\r |
07abbab1 |
907 | and r2, r2, r6\r |
908 | and r4, r4, r6\r |
909 | and r5, r5, r6\r |
910 | and r7, r7, r6\r |
911 | stmia r1!,{r2,r4,r5,r7}\r |
912 | bne .dtfc_loop_shprep\r |
913 | \r |
914 | mvn r5, #0 @ r5=prevcode=-1\r |
915 | b .dtfc_loop\r |
740da8c6 |
916 | \r |
cc68a136 |
917 | .pool\r |
918 | \r |
919 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
920 | \r |
921 | \r |
d01fa204 |
922 | @ void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est)\r |
923 | \r |
924 | .global DrawSpritesSHi\r |
e352c3af |
925 | \r |
926 | DrawSpritesSHi:\r |
fbc65db7 |
927 | ldr r3, [r0]\r |
928 | mov r12,#0xff\r |
e352c3af |
929 | ands r3, r3, #0x7f\r |
930 | bxeq lr\r |
cc68a136 |
931 | \r |
d01fa204 |
932 | stmfd sp!, {r1,r4-r11,lr} @ +est\r |
fbc65db7 |
933 | strb r12,[r0,#2] @ set end marker\r |
934 | add r10,r0, #3 @ r10=HighLnSpr end\r |
e352c3af |
935 | add r10,r10,r3 @ r10=HighLnSpr end\r |
936 | \r |
4981de9c |
937 | ldr r11,[r1, #OFS_HighCol]\r |
ea8c405f |
938 | mov r12,#0xf\r |
d01fa204 |
939 | ldr lr, [r1, #OFS_Pico_vram]\r |
cc68a136 |
940 | \r |
cc68a136 |
941 | \r |
e352c3af |
942 | DrawSpriteSHi:\r |
943 | @ draw next sprite\r |
944 | ldrb r0, [r10,#-1]!\r |
d01fa204 |
945 | ldr r7, [sp] @ est\r |
4981de9c |
946 | ldr r1, [r7, #OFS_HighPreSpr]\r |
e352c3af |
947 | cmp r0, #0xff\r |
d01fa204 |
948 | ldmeqfd sp!, {r1,r4-r11,pc} @ end of list\r |
e352c3af |
949 | and r0, r0, #0x7f\r |
950 | add r0, r1, r0, lsl #3\r |
951 | \r |
952 | ldr r9, [r0, #4] @ sprite[1]\r |
953 | mov r2, r9, asr #16 @ r2=sx\r |
cc68a136 |
954 | \r |
e352c3af |
955 | mov r9, r9, lsl #16\r |
956 | mov r3, r9, lsr #31 @ priority\r |
957 | mov r9, r9, lsr #16\r |
fbc65db7 |
958 | @ orr r9, r9, r8, lsl #31 @ r9=code|sh[31] @@ sh is always on here now\r |
e352c3af |
959 | and r4, r9, #0x6000\r |
960 | orr r9, r9, r4, lsl #16\r |
fbc65db7 |
961 | orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
e352c3af |
962 | cmp r12,r9, lsr #28 @ sh/hi with pal3?\r |
e54507e8 |
963 | cmpne r3, #1 @ if not, is it hi prio?\r |
e352c3af |
964 | bne DrawSpriteSHi @ non-operator low sprite, already drawn\r |
cc68a136 |
965 | \r |
e352c3af |
966 | ldr r3, [r0] @ sprite[0]\r |
e352c3af |
967 | mov r6, r3, lsr #28\r |
968 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
969 | mov r5, r3, lsr #24\r |
970 | and r5, r5, #7 @ r5=height\r |
cc68a136 |
971 | \r |
d01fa204 |
972 | ldr r7, [r7, #OFS_DrawScanline]\r |
e352c3af |
973 | mov r0, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
cc68a136 |
974 | \r |
e352c3af |
975 | sub r7, r7, r0, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
976 | \r |
e352c3af |
977 | tst r9, #0x1000\r |
978 | movne r0, r5, lsl #3\r |
979 | subne r0, r0, #1\r |
980 | subne r7, r0, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
cc68a136 |
981 | \r |
e352c3af |
982 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
983 | tst r9, #0x0800\r |
984 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
985 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
cc68a136 |
986 | \r |
e352c3af |
987 | mov r8, r8, lsl #21\r |
988 | mov r8, r8, lsr #17\r |
989 | and r7, r7, #7\r |
990 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
991 | \r |
992 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
e352c3af |
993 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
994 | \r |
995 | add r6, r6, #1 @ inc now\r |
996 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
997 | b .dsprShi_loop_enter\r |
998 | \r |
999 | .dsprShi_loop:\r |
1000 | subs r6, r6, #1 @ width--\r |
1001 | beq DrawSpriteSHi\r |
1002 | adds r0, r0, #8 @ sx+=8\r |
1003 | add r8, r8, r5 @ tile+=delta\r |
1004 | \r |
1005 | .dsprShi_loop_enter:\r |
1006 | ble .dsprShi_loop @ sx <= 0\r |
cc68a136 |
1007 | cmp r0, #328\r |
e352c3af |
1008 | bge DrawSpriteSHi\r |
cc68a136 |
1009 | \r |
1010 | mov r8, r8, lsl #17\r |
e352c3af |
1011 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
cc68a136 |
1012 | \r |
e352c3af |
1013 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1014 | add r1, r11, r0 @ r1=pdest\r |
cc68a136 |
1015 | tst r2, r2\r |
e352c3af |
1016 | beq .dsprShi_loop\r |
cc68a136 |
1017 | \r |
e352c3af |
1018 | cmp r12, r9, lsr #28\r |
1019 | beq .dsprShi_shadow\r |
cc68a136 |
1020 | \r |
1021 | cmp r2, r2, ror #4\r |
e352c3af |
1022 | beq .dsprShi_SingleColor @ tileline singlecolor \r |
cc68a136 |
1023 | \r |
e352c3af |
1024 | tst r9, #0x0800\r |
1025 | bne .dsprShi_TileFlip\r |
cc68a136 |
1026 | \r |
e352c3af |
1027 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
1028 | @ scratch: r4, r7\r |
1029 | .dsprShi_TileNorm:\r |
cc68a136 |
1030 | TileNorm r12\r |
e352c3af |
1031 | b .dsprShi_loop\r |
cc68a136 |
1032 | \r |
e352c3af |
1033 | .dsprShi_TileFlip:\r |
7a7c6476 |
1034 | TileFlip r12\r |
e352c3af |
1035 | b .dsprShi_loop\r |
7a7c6476 |
1036 | \r |
e352c3af |
1037 | .dsprShi_SingleColor:\r |
cc68a136 |
1038 | and r4, r2, #0xf\r |
1039 | orr r4, r3, r4\r |
1040 | orr r4, r4, r4, lsl #8\r |
e352c3af |
1041 | tst r0, #1 @ not aligned?\r |
cc68a136 |
1042 | strneb r4, [r1], #1\r |
1043 | streqh r4, [r1], #2\r |
1044 | strh r4, [r1], #2\r |
1045 | strh r4, [r1], #2\r |
1046 | strh r4, [r1], #2\r |
1047 | strneb r4, [r1], #1\r |
e352c3af |
1048 | b .dsprShi_loop\r |
cc68a136 |
1049 | \r |
e352c3af |
1050 | .dsprShi_shadow:\r |
1051 | tst r9, #0x8000\r |
1052 | beq .dsprShi_shadow_lowpri\r |
07abbab1 |
1053 | \r |
cc68a136 |
1054 | cmp r2, r2, ror #4\r |
e352c3af |
1055 | beq .dsprShi_singlec_sh\r |
cc68a136 |
1056 | \r |
e352c3af |
1057 | tst r9, #0x0800\r |
1058 | bne .dsprShi_TileFlip_sh\r |
cc68a136 |
1059 | \r |
e54507e8 |
1060 | @ (r1=pdest, r2=pixels8, r3=pal) r4, r7: scratch, r12: helper pattern\r |
e352c3af |
1061 | .dsprShi_TileNorm_sh:\r |
cc68a136 |
1062 | TileNormSh\r |
e352c3af |
1063 | b .dsprShi_loop\r |
cc68a136 |
1064 | \r |
e352c3af |
1065 | .dsprShi_TileFlip_sh:\r |
7a7c6476 |
1066 | TileFlipSh\r |
e352c3af |
1067 | b .dsprShi_loop\r |
7a7c6476 |
1068 | \r |
e352c3af |
1069 | .dsprShi_singlec_sh:\r |
cc68a136 |
1070 | cmp r2, #0xe0000000\r |
e352c3af |
1071 | bcc .dsprShi_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
cc68a136 |
1072 | tst r2, #0x10000000\r |
e352c3af |
1073 | bne .dsprShi_sh_sh\r |
cc68a136 |
1074 | TileSingleHi\r |
e352c3af |
1075 | b .dsprShi_loop\r |
cc68a136 |
1076 | \r |
e352c3af |
1077 | .dsprShi_sh_sh:\r |
cc68a136 |
1078 | TileSingleSh\r |
e352c3af |
1079 | b .dsprShi_loop\r |
cc68a136 |
1080 | \r |
e352c3af |
1081 | .dsprShi_shadow_lowpri:\r |
1082 | tst r9, #0x800\r |
1083 | bne .dsprShi_TileFlip_sh_lp\r |
07abbab1 |
1084 | \r |
e352c3af |
1085 | .dsprShi_TileNorm_sh_lp:\r |
07abbab1 |
1086 | TileNormSh_onlyop_lp\r |
e352c3af |
1087 | b .dsprShi_loop\r |
07abbab1 |
1088 | \r |
e352c3af |
1089 | .dsprShi_TileFlip_sh_lp:\r |
07abbab1 |
1090 | TileFlipSh_onlyop_lp\r |
e352c3af |
1091 | b .dsprShi_loop\r |
07abbab1 |
1092 | \r |
cc68a136 |
1093 | .pool\r |
1094 | \r |
1095 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1096 | \r |
d01fa204 |
1097 | @ void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
1098 | @ struct PicoEState *est)\r |
1099 | \r |
1100 | .global DrawAllSprites\r |
283fec1b |
1101 | \r |
1102 | DrawAllSprites:\r |
fbc65db7 |
1103 | orr r1, r2, r1, lsl #1\r |
d01fa204 |
1104 | ldr r12,[r3, #OFS_rendstatus]\r |
0fc0e241 |
1105 | tst r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
283fec1b |
1106 | beq das_no_prep\r |
d01fa204 |
1107 | stmfd sp!, {r0,r1,r3,lr}\r |
283fec1b |
1108 | and r0, r12,#PDRAW_DIRTY_SPRITES\r |
0fc0e241 |
1109 | bic r12,r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
d01fa204 |
1110 | str r12,[r3, #OFS_rendstatus]\r |
283fec1b |
1111 | bl PrepareSprites\r |
d01fa204 |
1112 | ldmfd sp!, {r0,r1,r3,lr}\r |
283fec1b |
1113 | \r |
1114 | das_no_prep:\r |
d01fa204 |
1115 | ldr r2, [r0]\r |
1116 | ands r2, r2, #0x7f\r |
283fec1b |
1117 | bxeq lr\r |
1118 | \r |
1119 | @ time to do some real work\r |
d01fa204 |
1120 | stmfd sp!, {r1,r3-r11,lr} @ +sh|prio<<1 +est\r |
283fec1b |
1121 | mov r12,#0xff\r |
fbc65db7 |
1122 | strb r12,[r0,#2] @ set end marker\r |
1123 | add r10,r0, #3\r |
d01fa204 |
1124 | add r10,r10,r2 @ r10=HighLnSpr end\r |
283fec1b |
1125 | \r |
4981de9c |
1126 | ldr r11,[r3, #OFS_HighCol]\r |
283fec1b |
1127 | mov r12,#0xf\r |
d01fa204 |
1128 | ldr lr, [r3, #OFS_Pico_vram]\r |
283fec1b |
1129 | \r |
1130 | @ + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size\r |
cc68a136 |
1131 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
1132 | \r |
d01fa204 |
1133 | DrawSprite:\r |
283fec1b |
1134 | @ draw next sprite\r |
1135 | ldrb r0, [r10,#-1]!\r |
d01fa204 |
1136 | ldr r8, [sp] @ sh|prio<<1\r |
1137 | ldr r7, [sp, #4] @ est\r |
e352c3af |
1138 | mov r2, r0, lsr #7\r |
1139 | cmp r0, #0xff\r |
d01fa204 |
1140 | ldmeqfd sp!, {r1,r3-r11,pc} @ end of list\r |
97a7f774 |
1141 | cmp r2, r8, lsr #1\r |
e352c3af |
1142 | bne DrawSprite @ wrong priority\r |
4981de9c |
1143 | ldr r1, [r7, #OFS_HighPreSpr]\r |
283fec1b |
1144 | and r0, r0, #0x7f\r |
1145 | add r0, r1, r0, lsl #3\r |
cc68a136 |
1146 | \r |
cc68a136 |
1147 | ldr r3, [r0] @ sprite[0]\r |
d01fa204 |
1148 | ldr r7, [r7, #OFS_DrawScanline]\r |
cc68a136 |
1149 | mov r6, r3, lsr #28\r |
1150 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
1151 | mov r5, r3, lsr #24\r |
1152 | and r5, r5, #7 @ r5=height\r |
1153 | \r |
1154 | mov r4, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
1155 | \r |
cc68a136 |
1156 | ldr r9, [r0, #4]\r |
b6d7ac70 |
1157 | sub r7, r7, r4, asr #16 @ r7=row=DrawScanline-sy\r |
cc68a136 |
1158 | \r |
cc68a136 |
1159 | mov r2, r9, asr #16 @ r2=sx\r |
e5fa9817 |
1160 | mov r9, r9, lsl #16\r |
1161 | mov r9, r9, lsr #16\r |
97a7f774 |
1162 | orr r9, r9, r8, lsl #31 @ r9=code|sh[31]\r |
cc68a136 |
1163 | \r |
1164 | tst r9, #0x1000\r |
1165 | movne r4, r5, lsl #3\r |
1166 | subne r4, r4, #1\r |
1167 | subne r7, r4, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
1168 | \r |
07abbab1 |
1169 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
cc68a136 |
1170 | tst r9, #0x0800\r |
1171 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
1172 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
1173 | \r |
07abbab1 |
1174 | mov r8, r8, lsl #21\r |
1175 | mov r8, r8, lsr #17\r |
cc68a136 |
1176 | and r7, r7, #7\r |
1177 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
1178 | \r |
e5fa9817 |
1179 | .dspr_continue:\r |
cc68a136 |
1180 | @ cache some stuff to avoid mem access\r |
cc68a136 |
1181 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
1182 | and r4, r9, #0x6000\r |
1183 | orr r9, r9, r4, lsl #16\r |
97a7f774 |
1184 | orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
cc68a136 |
1185 | \r |
cc68a136 |
1186 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
97a7f774 |
1187 | orrmi r3, r3, #0x40 @ for sh/hi\r |
cc68a136 |
1188 | \r |
1189 | add r6, r6, #1 @ inc now\r |
1190 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
1191 | b .dspr_loop_enter\r |
1192 | \r |
1193 | .dspr_loop:\r |
1194 | subs r6, r6, #1 @ width--\r |
283fec1b |
1195 | beq DrawSprite\r |
cc68a136 |
1196 | adds r0, r0, #8 @ sx+=8\r |
1197 | add r8, r8, r5 @ tile+=delta\r |
1198 | \r |
1199 | .dspr_loop_enter:\r |
1200 | ble .dspr_loop @ sx <= 0\r |
1201 | cmp r0, #328\r |
283fec1b |
1202 | bge DrawSprite\r |
cc68a136 |
1203 | \r |
1204 | mov r8, r8, lsl #17\r |
1205 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
1206 | \r |
1207 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1208 | add r1, r11, r0 @ r1=pdest\r |
1209 | tst r2, r2\r |
1210 | beq .dspr_loop\r |
1211 | \r |
1212 | cmp r12, r9, lsr #28\r |
1213 | beq .dspr_shadow\r |
1214 | \r |
1215 | cmp r2, r2, ror #4\r |
1216 | beq .dspr_SingleColor @ tileline singlecolor \r |
1217 | \r |
1218 | tst r9, #0x0800\r |
7a7c6476 |
1219 | bne .dspr_TileFlip\r |
cc68a136 |
1220 | \r |
1221 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1222 | @ scratch: r4, r7\r |
1223 | .dspr_TileNorm:\r |
1224 | TileNorm r12\r |
1225 | b .dspr_loop\r |
1226 | \r |
7a7c6476 |
1227 | .dspr_TileFlip:\r |
1228 | TileFlip r12\r |
1229 | b .dspr_loop\r |
1230 | \r |
07abbab1 |
1231 | .dspr_singlec_sh:\r |
1232 | cmp r2, #0xe0000000\r |
e54507e8 |
1233 | bcs .dspr_TileNorm_sh @ op. tileline, markop. XXX: maybe add a spec. handler?\r |
07abbab1 |
1234 | \r |
cc68a136 |
1235 | .dspr_SingleColor:\r |
1236 | and r4, r2, #0xf\r |
1237 | orr r4, r3, r4\r |
1238 | orr r4, r4, r4, lsl #8\r |
1239 | tst r0, #1 @ not aligned?\r |
1240 | strneb r4, [r1], #1\r |
1241 | streqh r4, [r1], #2\r |
1242 | strh r4, [r1], #2\r |
1243 | strh r4, [r1], #2\r |
1244 | strh r4, [r1], #2\r |
1245 | strneb r4, [r1], #1\r |
1246 | b .dspr_loop\r |
1247 | \r |
1248 | .dspr_shadow:\r |
1249 | cmp r2, r2, ror #4\r |
1250 | beq .dspr_singlec_sh\r |
1251 | \r |
1252 | tst r9, #0x0800\r |
7a7c6476 |
1253 | bne .dspr_TileFlip_sh\r |
cc68a136 |
1254 | \r |
1255 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
cc68a136 |
1256 | .dspr_TileNorm_sh:\r |
e54507e8 |
1257 | TileNormSh_markop\r |
cc68a136 |
1258 | b .dspr_loop\r |
1259 | \r |
7a7c6476 |
1260 | .dspr_TileFlip_sh:\r |
e54507e8 |
1261 | TileFlipSh_markop\r |
cc68a136 |
1262 | b .dspr_loop\r |
1263 | \r |
1264 | \r |
cc68a136 |
1265 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1266 | \r |
d01fa204 |
1267 | @ void DrawWindow(int tstart, int tend, int prio, int sh\r |
1268 | @ struct PicoEState *est)\r |
1269 | \r |
1270 | .global DrawWindow\r |
cc68a136 |
1271 | \r |
1272 | DrawWindow:\r |
d01fa204 |
1273 | ldr r12, [sp] @ est\r |
cc68a136 |
1274 | stmfd sp!, {r4-r11,lr}\r |
1275 | \r |
d01fa204 |
1276 | ldr r6, [r12, #OFS_Pico_video]\r |
1277 | ldr r10, [r12, #OFS_DrawScanline]\r |
1278 | mov r11, r12 @ est\r |
1279 | ldrb r12, [r6, #3] @ pvid->reg[3]\r |
cc68a136 |
1280 | \r |
d01fa204 |
1281 | ldr r4, [r6, #12]\r |
cc68a136 |
1282 | mov r5, r10, lsr #3\r |
1283 | and r10, r10, #7\r |
1284 | mov r10, r10, lsl #1 @ r10=ty\r |
1285 | \r |
1286 | mov r12, r12, lsl #10\r |
1287 | \r |
1288 | tst r4, #1 @ 40 cell mode?\r |
1289 | andne r12, r12, #0xf000 @ 0x3c<<10\r |
1290 | andeq r12, r12, #0xf800\r |
1291 | addne r12, r12, r5, lsl #7\r |
1292 | addeq r12, r12, r5, lsl #6 @ nametab\r |
1293 | add r12, r12, r0, lsl #2 @ +starttile\r |
1294 | \r |
d01fa204 |
1295 | ldr lr, [r11, #OFS_Pico_vram]\r |
1296 | ldr r6, [r11, #OFS_rendstatus]\r |
cc68a136 |
1297 | \r |
1298 | @ fetch the first code now\r |
1299 | ldrh r7, [lr, r12]\r |
1300 | \r |
283fec1b |
1301 | ands r6, r6, #PDRAW_WND_DIFF_PRIO\r |
cc68a136 |
1302 | orr r6, r6, r2\r |
cc68a136 |
1303 | \r |
7292c709 |
1304 | eoreq r8, r2, r7, lsr #15 @ do prio bits differ?\r |
1305 | cmpeq r8, #1\r |
1306 | ldmeqfd sp!, {r4-r11,pc} @ yes, assume that whole window uses same priority\r |
cc68a136 |
1307 | \r |
cc68a136 |
1308 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
1309 | \r |
1310 | sub r8, r1, r0\r |
cc68a136 |
1311 | \r |
1312 | @ cache some stuff to avoid mem access\r |
4981de9c |
1313 | ldr r11, [r11, #OFS_HighCol]\r |
ea8c405f |
1314 | mov r8, r8, lsl #1 @ cells\r |
ea8c405f |
1315 | add r11,r11,#8\r |
ea8c405f |
1316 | mvn r9, #0 @ r9=prevcode=-1\r |
07abbab1 |
1317 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
cc68a136 |
1318 | mov r0, #0xf\r |
1319 | b .dwloop_enter\r |
1320 | \r |
07abbab1 |
1321 | @ r4,r5 are scratch in this loop\r |
cc68a136 |
1322 | .dwloop:\r |
1323 | add r1, r1, #8\r |
1324 | .dwloop_nor1:\r |
1325 | add r12, r12, #2 @ halfwords\r |
1326 | ldrh r7, [lr, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
1327 | subs r8, r8, #1\r |
1328 | beq .dwloop_end @ done\r |
1329 | \r |
1330 | eor r5, r6, r7, lsr #15\r |
1331 | tst r5, #1\r |
1332 | orrne r6, r6, #2 @ wrong pri\r |
1333 | bne .dwloop\r |
1334 | \r |
1335 | cmp r7, r9\r |
1336 | beq .dw_samecode @ we know stuff about this tile already\r |
1337 | \r |
1338 | .dwloop_enter:\r |
1339 | mov r9, r7 @ remember code\r |
1340 | \r |
1341 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
1342 | mov r2, r2, lsl #1\r |
1343 | add r2, r10, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4; addr+=ty\r |
1344 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
1345 | \r |
1346 | and r3, r9, #0x6000\r |
1347 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
1348 | \r |
1349 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
1350 | \r |
1351 | .dw_samecode:\r |
1352 | tst r6, #0x100\r |
1353 | bne .dw_shadow\r |
1354 | .dw_shadow_done:\r |
1355 | tst r2, r2\r |
1356 | beq .dwloop @ tileline blank\r |
1357 | \r |
1358 | cmp r2, r2, ror #4\r |
1359 | beq .dw_SingleColor @ tileline singlecolor \r |
1360 | \r |
1361 | tst r9, #0x0800\r |
7a7c6476 |
1362 | bne .dw_TileFlip\r |
cc68a136 |
1363 | \r |
1364 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
cc68a136 |
1365 | .dw_TileNorm:\r |
1366 | TileNorm r0\r |
1367 | b .dwloop\r |
1368 | \r |
7a7c6476 |
1369 | .dw_TileFlip:\r |
1370 | TileFlip r0\r |
1371 | b .dwloop\r |
1372 | \r |
cc68a136 |
1373 | .dw_SingleColor:\r |
1374 | and r4, r0, r2 @ #0x0000000f\r |
1375 | orr r4, r3, r4\r |
1376 | orr r4, r4, r4, lsl #8\r |
1377 | orr r4, r4, r4, lsl #16\r |
1378 | mov r5, r4\r |
1379 | stmia r1!, {r4,r5}\r |
1380 | b .dwloop_nor1 @ we incremeted r1 ourselves\r |
1381 | \r |
1382 | .dw_shadow:\r |
1383 | tst r6, #1 @ hi pri?\r |
1384 | orreq r3, r3, #0x40\r |
1385 | beq .dw_shadow_done\r |
1386 | ldr r4, [r1]\r |
07abbab1 |
1387 | mov r5, #0x3f\r |
1388 | orr r5, r5, r5, lsl #8\r |
1389 | orr r5, r5, r5, lsl #16\r |
1390 | and r4, r4, r5\r |
cc68a136 |
1391 | str r4, [r1]\r |
1392 | ldr r4, [r1,#4]\r |
07abbab1 |
1393 | and r4, r4, r5\r |
cc68a136 |
1394 | str r4, [r1,#4]\r |
1395 | b .dw_shadow_done\r |
1396 | \r |
1397 | .dwloop_end:\r |
d01fa204 |
1398 | and r2, r6, #PDRAW_WND_DIFF_PRIO\r |
1399 | ldmfd sp!, {r4-r11,lr}\r |
1400 | ldr r0, [sp]\r |
1401 | ldr r1, [r0, #OFS_rendstatus]\r |
1402 | orr r1, r1, r2\r |
1403 | str r1, [r0, #OFS_rendstatus]\r |
cc68a136 |
1404 | \r |
d01fa204 |
1405 | bx lr\r |
cc68a136 |
1406 | \r |
1407 | \r |
1408 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1409 | \r |
1410 | \r |
1411 | @ hilights 2 pixels in RGB444/BGR444 format\r |
1412 | .macro TileDoShHi2Pixels444 reg\r |
1413 | mov \reg, \reg, ror #12\r |
1414 | adds \reg, \reg, #0x40000000\r |
1415 | orrcs \reg, \reg, #0xf0000000\r |
1416 | mov \reg, \reg, ror #28\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 #24\r |
1423 | adds \reg, \reg, #0x40000000\r |
1424 | orrcs \reg, \reg, #0xf0000000\r |
1425 | mov \reg, \reg, ror #28\r |
1426 | adds \reg, \reg, #0x40000000\r |
1427 | orrcs \reg, \reg, #0xf0000000\r |
1428 | mov \reg, \reg, ror #28\r |
1429 | adds \reg, \reg, #0x40000000\r |
1430 | orrcs \reg, \reg, #0xf0000000\r |
1431 | mov \reg, \reg, ror #12\r |
1432 | .endm\r |
1433 | \r |
1434 | \r |
cc68a136 |
1435 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1436 | \r |
1437 | \r |
cc68a136 |
1438 | @ Convert 0000bbb0 ggg0rrr0\r |
1439 | @ to rrrrrggg gggbbbbb\r |
1440 | \r |
a39d8ba5 |
1441 | @ r2,r3 - scratch, lr = 0x001c001c, r8 = 0x08610861\r |
cc68a136 |
1442 | .macro convRGB565 reg\r |
a39d8ba5 |
1443 | and r2, lr, \reg,lsr #7 @ b\r |
1444 | and r3, lr, \reg,lsr #3 @ g\r |
1445 | and \reg, lr, \reg,lsl #1 @ r\r |
1446 | orr r2, r2, r3, lsl #6\r |
1447 | orr \reg, r2, \reg,lsl #11\r |
1448 | \r |
1449 | and r2, r8, \reg,lsr #4\r |
1450 | orr \reg, \reg, r2\r |
cc68a136 |
1451 | .endm\r |
1452 | \r |
a39d8ba5 |
1453 | @ trashes: r2-r8,r12,lr; r8 = 0x08610861; r0,r1 are advanced\r |
b2305d08 |
1454 | .macro vidConvCpyRGB565_local\r |
2ec14aec |
1455 | mov r12, r2, lsr #3 @ repeats\r |
cc68a136 |
1456 | mov lr, #0x001c0000\r |
1457 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
cc68a136 |
1458 | \r |
b2305d08 |
1459 | 0:\r |
cc68a136 |
1460 | ldmia r1!, {r4-r7}\r |
1461 | subs r12, r12, #1\r |
1462 | convRGB565 r4\r |
1463 | str r4, [r0], #4\r |
1464 | convRGB565 r5\r |
1465 | str r5, [r0], #4\r |
1466 | convRGB565 r6\r |
1467 | str r6, [r0], #4\r |
1468 | convRGB565 r7\r |
1469 | str r7, [r0], #4\r |
1470 | \r |
b2305d08 |
1471 | bgt 0b\r |
1472 | .endm\r |
1473 | \r |
1474 | \r |
1475 | .global vidConvCpyRGB565\r |
cc68a136 |
1476 | \r |
b2305d08 |
1477 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
1478 | stmfd sp!, {r4-r9,lr}\r |
a39d8ba5 |
1479 | mov r8, #0x0061\r |
1480 | orr r8, r8, #0x0800\r |
f4750ee0 |
1481 | orr r8, r8, r8, lsl #16\r |
b2305d08 |
1482 | vidConvCpyRGB565_local\r |
cc68a136 |
1483 | ldmfd sp!, {r4-r9,lr}\r |
1484 | bx lr\r |
1485 | \r |
1486 | \r |
d01fa204 |
1487 | @ void PicoDoHighPal555(int sh, int line, struct PicoEState *est)\r |
1488 | \r |
1489 | .global PicoDoHighPal555\r |
cc68a136 |
1490 | \r |
b2305d08 |
1491 | PicoDoHighPal555:\r |
d01fa204 |
1492 | stmfd sp!, {r4-r10,lr}\r |
1493 | mov r10,r2 @ est\r |
b2305d08 |
1494 | mov r1, #0\r |
d01fa204 |
1495 | ldr r8, [r10, #OFS_Pico_video]\r |
cc68a136 |
1496 | \r |
b2305d08 |
1497 | PicoDoHighPal555_nopush:\r |
a39d8ba5 |
1498 | orr r9, r1, r0, lsl #31 @ 0:called from FinalizeLine555, 31: s/h\r |
b2305d08 |
1499 | \r |
7b4813fa |
1500 | add r0, r10, #OFS_HighPal\r |
b2305d08 |
1501 | \r |
cc68a136 |
1502 | mov r1, #0\r |
b2305d08 |
1503 | strb r1, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1504 | \r |
3d48f143 |
1505 | sub r1, r8, #0x128 @ r1=Pico.cram\r |
cc68a136 |
1506 | mov r2, #0x40\r |
a39d8ba5 |
1507 | mov r8, #0x0061\r |
1508 | orr r8, r8, #0x0800\r |
f4750ee0 |
1509 | orr r8, r8, r8, lsl #16\r |
a39d8ba5 |
1510 | \r |
b2305d08 |
1511 | vidConvCpyRGB565_local\r |
cc68a136 |
1512 | \r |
a39d8ba5 |
1513 | tst r9, #(1<<31)\r |
b2305d08 |
1514 | beq PicoDoHighPal555_end\r |
1515 | \r |
7b4813fa |
1516 | add r3, r10, #OFS_HighPal\r |
cc68a136 |
1517 | \r |
1518 | @ shadowed pixels:\r |
1519 | mov r12, #0x008e\r |
cc68a136 |
1520 | add r4, r3, #0x40*2\r |
b2305d08 |
1521 | orr r12,r12,#0x7300\r |
cc68a136 |
1522 | add r5, r3, #0xc0*2\r |
b2305d08 |
1523 | orr r12,r12,r12,lsl #16\r |
cc68a136 |
1524 | mov lr, #0x40/4\r |
1525 | .fl_loopcpRGB555_sh:\r |
1526 | ldmia r3!, {r1,r6}\r |
1527 | subs lr, lr, #1\r |
1528 | and r1, r12, r1, lsr #1\r |
1529 | and r6, r12, r6, lsr #1\r |
1530 | stmia r4!, {r1,r6}\r |
1531 | stmia r5!, {r1,r6}\r |
1532 | bne .fl_loopcpRGB555_sh\r |
1533 | \r |
1534 | @ hilighted pixels:\r |
a39d8ba5 |
1535 | @ t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e;\r |
1536 | @ t |= (t >> 4) & 0x08610861;\r |
1537 | @ r8=0x08610861\r |
cc68a136 |
1538 | sub r3, r3, #0x40*2\r |
a39d8ba5 |
1539 | mov lr, #0x40/4\r |
cc68a136 |
1540 | .fl_loopcpRGB555_hi:\r |
a39d8ba5 |
1541 | ldmia r3!, {r1,r6}\r |
1542 | and r1, r12, r1, lsr #1\r |
1543 | and r6, r12, r6, lsr #1\r |
1544 | add r1, r12, r1\r |
1545 | add r6, r12, r6\r |
1546 | and r5, r8, r1, lsr #4\r |
1547 | and r7, r8, r6, lsr #4\r |
1548 | orr r1, r1, r5\r |
1549 | orr r6, r6, r7\r |
1550 | stmia r4!, {r1,r6}\r |
cc68a136 |
1551 | subs lr, lr, #1\r |
1552 | bne .fl_loopcpRGB555_hi\r |
b2305d08 |
1553 | mov r0, #1\r |
cc68a136 |
1554 | \r |
b2305d08 |
1555 | PicoDoHighPal555_end:\r |
a39d8ba5 |
1556 | tst r9, #1\r |
d01fa204 |
1557 | ldmeqfd sp!, {r4-r10,pc}\r |
b2305d08 |
1558 | \r |
d01fa204 |
1559 | ldr r8, [r10, #OFS_Pico_video]\r |
b2305d08 |
1560 | b FinalizeLineRGB555_pal_done\r |
1561 | \r |
1562 | \r |
d01fa204 |
1563 | @ void FinalizeLine555(int sh, int line, struct PicoEState *est)\r |
1564 | \r |
1565 | .global FinalizeLine555\r |
b2305d08 |
1566 | \r |
5a681086 |
1567 | FinalizeLine555:\r |
d01fa204 |
1568 | stmfd sp!, {r4-r10,lr}\r |
1569 | mov r10,r2 @ est\r |
1570 | ldr r8, [r10, #OFS_Pico_video]\r |
b2305d08 |
1571 | \r |
1572 | ldrb r2, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
1573 | mov r1, #1\r |
1574 | tst r2, r2\r |
1575 | bne PicoDoHighPal555_nopush\r |
1576 | \r |
1577 | FinalizeLineRGB555_pal_done:\r |
7b4813fa |
1578 | add r3, r10, #OFS_HighPal\r |
cc68a136 |
1579 | \r |
d01fa204 |
1580 | ldr r12, [r10, #OFS_rendstatus]\r |
b2305d08 |
1581 | eors r0, r0, #1 @ sh is 0\r |
e5fa9817 |
1582 | mov lr, #0xff\r |
283fec1b |
1583 | tstne r12,#PDRAW_ACC_SPRITES\r |
e5fa9817 |
1584 | movne lr, #0x3f\r |
1585 | \r |
4981de9c |
1586 | ldr r1, [r10, #OFS_HighCol]\r |
1587 | ldr r0, [r10, #OFS_DrawLineDest]\r |
ea8c405f |
1588 | add r1, r1, #8\r |
3d48f143 |
1589 | \r |
1590 | ldrb r12, [r8, #12]\r |
cc68a136 |
1591 | mov lr, lr, lsl #1\r |
1592 | \r |
3d48f143 |
1593 | tst r12, #1\r |
1594 | movne r2, #320/8 @ len\r |
1595 | bne .fl_no32colRGB555\r |
4981de9c |
1596 | ldr r4, [r10, #OFS_PicoOpt]\r |
3d48f143 |
1597 | mov r2, #256/8\r |
1598 | ldr r4, [r4]\r |
1599 | tst r4, #0x4000\r |
1600 | bne .fl_32scale_RGB555\r |
1601 | tst r4, #0x0100\r |
1602 | addeq r0, r0, #32*2\r |
1603 | \r |
1604 | .fl_no32colRGB555:\r |
cc68a136 |
1605 | \r |
f62850ba |
1606 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1607 | @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r |
1608 | tst r0, #2\r |
1609 | bne .fl_RGB555u\r |
f62850ba |
1610 | #endif\r |
499a0be3 |
1611 | \r |
1612 | .fl_loopRGB555:\r |
cc68a136 |
1613 | ldr r12, [r1], #4\r |
1614 | ldr r7, [r1], #4\r |
1615 | \r |
1616 | and r4, lr, r12, lsl #1\r |
1617 | ldrh r4, [r3, r4]\r |
1618 | and r5, lr, r12, lsr #7\r |
1619 | ldrh r5, [r3, r5]\r |
1620 | and r6, lr, r12, lsr #15\r |
1621 | ldrh r6, [r3, r6]\r |
1622 | orr r4, r4, r5, lsl #16\r |
1623 | \r |
1624 | and r5, lr, r12, lsr #23\r |
1625 | ldrh r5, [r3, r5]\r |
1626 | and r8, lr, r7, lsl #1\r |
1627 | ldrh r8, [r3, r8]\r |
1628 | orr r5, r6, r5, lsl #16\r |
1629 | \r |
1630 | and r6, lr, r7, lsr #7\r |
1631 | ldrh r6, [r3, r6]\r |
1632 | and r12,lr, r7, lsr #15\r |
1633 | ldrh r12,[r3, r12]\r |
499a0be3 |
1634 | and r7, lr, r7, lsr #23\r |
1635 | ldrh r7, [r3, r7]\r |
cc68a136 |
1636 | orr r8, r8, r6, lsl #16\r |
1637 | \r |
cc68a136 |
1638 | subs r2, r2, #1\r |
499a0be3 |
1639 | orr r12,r12, r7, lsl #16\r |
cc68a136 |
1640 | \r |
1641 | stmia r0!, {r4,r5,r8,r12}\r |
1642 | bne .fl_loopRGB555\r |
1643 | \r |
d01fa204 |
1644 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1645 | bx lr\r |
1646 | \r |
1647 | \r |
1648 | .fl_32scale_RGB555:\r |
3d48f143 |
1649 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1650 | orr r9, r9, #0x00e7\r |
1651 | \r |
f62850ba |
1652 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1653 | tst r0, #2\r |
1654 | bne .fl_32scale_RGB555u\r |
f62850ba |
1655 | #endif\r |
499a0be3 |
1656 | \r |
3d48f143 |
1657 | .fl_loop32scale_RGB555:\r |
1658 | ldr r12, [r1], #4\r |
1659 | ldr r7, [r1], #4\r |
cc68a136 |
1660 | \r |
3d48f143 |
1661 | and r4, lr, r12,lsl #1\r |
1662 | ldrh r4, [r3, r4]\r |
1663 | and r5, lr, r12,lsr #7\r |
1664 | ldrh r5, [r3, r5]\r |
1665 | and r4, r4, r9, lsl #2\r |
1666 | orr r4, r4, r4, lsl #14 @ r4[31:16] = 1/4 pix_s 0\r |
1667 | and r5, r5, r9, lsl #2\r |
1668 | sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r |
1669 | add r4, r4, r6, lsl #16 @ pix_d 0, 1\r |
1670 | and r6, lr, r12,lsr #15\r |
1671 | ldrh r6, [r3, r6]\r |
1672 | and r12,lr, r12,lsr #23\r |
1673 | ldrh r12,[r3, r12]\r |
1674 | and r6, r6, r9, lsl #2\r |
1675 | add r5, r5, r6\r |
1676 | mov r5, r5, lsr #1\r |
1677 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1678 | orr r5, r5, r6, lsl #16\r |
1679 | \r |
1680 | and r6, lr, r7, lsl #1\r |
1681 | ldrh r6, [r3, r6]\r |
1682 | and r12,r12,r9, lsl #2\r |
1683 | add r5, r5, r12,lsl #14 @ pix_d 2, 3\r |
1684 | and r6, r6, r9, lsl #2\r |
1685 | orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r |
1686 | \r |
1687 | and r12,lr, r7, lsr #7\r |
1688 | ldrh r12,[r3, r12]\r |
1689 | and r10,lr, r7, lsr #15\r |
1690 | ldrh r10,[r3, r10]\r |
1691 | and r12,r12,r9, lsl #2\r |
1692 | sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r |
1693 | add r8, r8, r6, lsr #18\r |
1694 | and r7, lr, r7, lsr #23\r |
1695 | ldrh r7, [r3, r7]\r |
1696 | and r10,r10,r9, lsl #2\r |
1697 | orr r8, r8, r10,lsl #15\r |
1698 | add r8, r8, r12,lsl #15 @ pix_d 6, 7\r |
1699 | sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r |
1700 | and r7, r7, r9, lsl #2\r |
1701 | add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r |
1702 | orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r |
1703 | \r |
1704 | subs r2, r2, #1\r |
1705 | \r |
1706 | stmia r0!, {r4,r5,r6,r8,r10}\r |
1707 | bne .fl_loop32scale_RGB555\r |
1708 | \r |
d01fa204 |
1709 | ldmfd sp!, {r4-r10,lr}\r |
3d48f143 |
1710 | bx lr\r |
1711 | \r |
f62850ba |
1712 | #ifdef UNALIGNED_DRAWLINEDEST\r |
499a0be3 |
1713 | @ unaligned versions of loops\r |
9839d126 |
1714 | @ warning: starts drawing 2bytes before dst\r |
499a0be3 |
1715 | \r |
1716 | .fl_RGB555u:\r |
9839d126 |
1717 | sub r0, r0, #2 @ initial adjustment\r |
1718 | mov r8, #0\r |
499a0be3 |
1719 | \r |
1720 | .fl_loopRGB555u:\r |
1721 | ldr r12, [r1], #4\r |
1722 | ldr r7, [r1], #4\r |
1723 | \r |
9839d126 |
1724 | and r6, lr, r12,lsl #1\r |
1725 | ldrh r6, [r3, r6]\r |
1726 | and r5, lr, r12,lsr #7\r |
499a0be3 |
1727 | ldrh r5, [r3, r5]\r |
9839d126 |
1728 | orr r4, r8, r6, lsl #16\r |
499a0be3 |
1729 | \r |
9839d126 |
1730 | and r6, lr, r12,lsr #15\r |
499a0be3 |
1731 | ldrh r6, [r3, r6]\r |
9839d126 |
1732 | and r8, lr, r12,lsr #23\r |
499a0be3 |
1733 | ldrh r8, [r3, r8]\r |
9839d126 |
1734 | orr r5, r5, r6, lsl #16\r |
499a0be3 |
1735 | \r |
9839d126 |
1736 | and r6, lr, r7, lsl #1\r |
499a0be3 |
1737 | ldrh r6, [r3, r6]\r |
9839d126 |
1738 | and r12,lr, r7, lsr #7\r |
499a0be3 |
1739 | ldrh r12,[r3, r12]\r |
9839d126 |
1740 | orr r6, r8, r6, lsl #16\r |
1741 | \r |
1742 | and r8, lr, r7, lsr #15\r |
499a0be3 |
1743 | ldrh r8, [r3, r8]\r |
9839d126 |
1744 | and r7, lr, r7, lsr #23\r |
499a0be3 |
1745 | \r |
1746 | subs r2, r2, #1\r |
9839d126 |
1747 | orr r12,r12,r8, lsl #16\r |
1748 | ldrh r8, [r3, r7]\r |
1749 | \r |
1750 | stmia r0!, {r4,r5,r6,r12}\r |
499a0be3 |
1751 | bne .fl_loopRGB555u\r |
1752 | \r |
1753 | strh r8, [r0], #2\r |
1754 | \r |
d01fa204 |
1755 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1756 | bx lr\r |
1757 | \r |
1758 | \r |
1759 | .fl_32scale_RGB555u:\r |
9839d126 |
1760 | sub r0, r0, #2 @ initial adjustment\r |
1761 | mov r4, #0\r |
499a0be3 |
1762 | \r |
1763 | @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
1764 | .fl_loop32scale_RGB555u:\r |
1765 | ldr r12, [r1], #4\r |
1766 | ldr r7, [r1], #4\r |
1767 | \r |
9839d126 |
1768 | and r6, lr, r12,lsl #1\r |
1769 | ldrh r6, [r3, r6]\r |
499a0be3 |
1770 | and r5, lr, r12,lsr #7\r |
1771 | ldrh r5, [r3, r5]\r |
9839d126 |
1772 | and r6, r6, r9, lsl #2\r |
1773 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
499a0be3 |
1774 | \r |
1775 | and r5, r5, r9, lsl #2\r |
9839d126 |
1776 | sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1\r |
1777 | add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)\r |
1778 | orr r5, r6, r5, lsl #15\r |
499a0be3 |
1779 | \r |
1780 | and r6, lr, r12,lsr #15\r |
1781 | ldrh r6, [r3, r6]\r |
1782 | and r12,lr, r12,lsr #23\r |
1783 | ldrh r12,[r3, r12]\r |
1784 | and r6, r6, r9, lsl #2\r |
9839d126 |
1785 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
499a0be3 |
1786 | \r |
9839d126 |
1787 | and r8, lr, r7, lsl #1\r |
1788 | ldrh r8, [r3, r8]\r |
1789 | and r10,lr, r7, lsr #7\r |
1790 | ldrh r10,[r3, r10]\r |
499a0be3 |
1791 | and r12,r12,r9, lsl #2\r |
9839d126 |
1792 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
1793 | add r6, r6, r12,lsr #2\r |
1794 | orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4\r |
499a0be3 |
1795 | \r |
9839d126 |
1796 | and r8, r8, r9, lsl #2\r |
1797 | and r10,r10,r9, lsl #2\r |
1798 | sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5\r |
1799 | orr r8, r8, r8, lsl #14\r |
1800 | add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6\r |
1801 | and r12,lr, r7, lsr #15\r |
499a0be3 |
1802 | ldrh r12,[r3, r12]\r |
499a0be3 |
1803 | and r7, lr, r7, lsr #23\r |
1804 | ldrh r7, [r3, r7]\r |
9839d126 |
1805 | and r12,r12,r9, lsl #2\r |
1806 | add r10,r10,r12\r |
1807 | mov r10,r10, lsr #1\r |
1808 | sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6\r |
1809 | orr r10,r10,r12,lsl #16\r |
499a0be3 |
1810 | and r7, r7, r9, lsl #2\r |
9839d126 |
1811 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
499a0be3 |
1812 | \r |
1813 | subs r2, r2, #1\r |
1814 | \r |
1815 | stmia r0!, {r4,r5,r6,r8,r10}\r |
9839d126 |
1816 | mov r4, r7\r |
499a0be3 |
1817 | bne .fl_loop32scale_RGB555u\r |
1818 | \r |
9839d126 |
1819 | strh r4, [r0], #2\r |
1820 | \r |
d01fa204 |
1821 | ldmfd sp!, {r4-r10,lr}\r |
499a0be3 |
1822 | bx lr\r |
1823 | \r |
f62850ba |
1824 | #endif /* UNALIGNED_DRAWLINEDEST */\r |
499a0be3 |
1825 | \r |
cc68a136 |
1826 | \r |
1827 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
1828 | \r |
1829 | @ utility\r |
1830 | .global blockcpy @ void *dst, void *src, size_t n\r |
1831 | \r |
1832 | blockcpy:\r |
1833 | stmfd sp!, {r4,r5}\r |
1834 | mov r2, r2, lsr #4\r |
1835 | blockcpy_loop:\r |
1836 | ldmia r1!, {r3-r5,r12}\r |
1837 | subs r2, r2, #1\r |
1838 | stmia r0!, {r3-r5,r12}\r |
1839 | bne blockcpy_loop\r |
1840 | ldmfd sp!, {r4,r5}\r |
1841 | bx lr\r |
1842 | \r |
1843 | \r |
1844 | .global blockcpy_or @ void *dst, void *src, size_t n, int pat\r |
1845 | \r |
1846 | blockcpy_or:\r |
1847 | stmfd sp!, {r4-r6}\r |
1848 | orr r3, r3, r3, lsl #8\r |
1849 | orr r3, r3, r3, lsl #16\r |
1850 | mov r2, r2, lsr #4\r |
1851 | blockcpy_loop_or:\r |
1852 | ldmia r1!, {r4-r6,r12}\r |
1853 | subs r2, r2, #1\r |
1854 | orr r4, r4, r3\r |
1855 | orr r5, r5, r3\r |
1856 | orr r6, r6, r3\r |
1857 | orr r12,r12,r3\r |
1858 | stmia r0!, {r4-r6,r12}\r |
1859 | bne blockcpy_loop_or\r |
1860 | ldmfd sp!, {r4-r6}\r |
1861 | bx lr\r |
1862 | \r |
cff531af |
1863 | @ vim:filetype=armasm\r |