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1 | @ vim:filetype=armasm\r |
| 2 | \r |
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3 | @ assembly "optimized" version of some funtions from draw.c\r |
| 4 | @ this is highly specialized, be careful if changing related C code!\r |
| 5 | \r |
| 6cadc2da |
6 | @ (c) Copyright 2007, Grazvydas "notaz" Ignotas\r |
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7 | @ All Rights Reserved\r |
| 8 | \r |
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9 | .include "port_config.s"\r |
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10 | \r |
| 11 | .extern Pico\r |
| 12 | .extern PicoOpt\r |
| 13 | .extern HighCol\r |
| 14 | .extern Scanline\r |
| 15 | .extern HighSprZ\r |
| 16 | .extern rendstatus\r |
| 17 | .extern DrawLineDest\r |
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18 | .extern DrawStripInterlace\r |
| 19 | \r |
| 20 | \r |
| 21 | @ helper\r |
| 22 | .macro TilePixel pat lsrr offs\r |
| 23 | .if !\lsrr\r |
| 24 | ands r4, \pat, r2\r |
| 25 | .else\r |
| 26 | ands r4, \pat, r2, lsr #\lsrr\r |
| 27 | .endif\r |
| 28 | orrne r4, r3, r4\r |
| 29 | strneb r4, [r1,#\offs]\r |
| 30 | .endm\r |
| 31 | \r |
| 32 | @ TileNorm (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
| 33 | .macro TileNorm pat\r |
| 34 | TilePixel \pat, 12, 0 @ #0x0000f000\r |
| 35 | TilePixel \pat, 8, 1 @ #0x00000f00\r |
| 36 | TilePixel \pat, 4, 2 @ #0x000000f0\r |
| 37 | TilePixel \pat, 0, 3 @ #0x0000000f\r |
| 38 | TilePixel \pat, 28, 4 @ #0xf0000000\r |
| 39 | TilePixel \pat, 24, 5 @ #0x0f000000\r |
| 40 | TilePixel \pat, 20, 6 @ #0x00f00000\r |
| 41 | TilePixel \pat, 16, 7 @ #0x000f0000\r |
| 42 | .endm\r |
| 43 | \r |
| 44 | @ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
| 45 | .macro TileFlip pat\r |
| 46 | TilePixel \pat, 16, 0 @ #0x000f0000\r |
| 47 | TilePixel \pat, 20, 1 @ #0x00f00000\r |
| 48 | TilePixel \pat, 24, 2 @ #0x0f000000\r |
| 49 | TilePixel \pat, 28, 3 @ #0xf0000000\r |
| 50 | TilePixel \pat, 0, 4 @ #0x0000000f\r |
| 51 | TilePixel \pat, 4, 5 @ #0x000000f0\r |
| 52 | TilePixel \pat, 8, 6 @ #0x00000f00\r |
| 53 | TilePixel \pat, 12, 7 @ #0x0000f000\r |
| 54 | .endm\r |
| 55 | \r |
| 56 | @ shadow/hilight mode\r |
| 57 | \r |
| 58 | @ this one is for hi priority layer\r |
| 59 | .macro TilePixelShHP lsrr offs\r |
| 60 | .if !\lsrr\r |
| 61 | ands r4, r12, r2\r |
| 62 | .else\r |
| 63 | ands r4, r12, r2, lsr #\lsrr\r |
| 64 | .endif\r |
| 65 | ldreqb r4, [r1,#\offs]\r |
| 66 | orrne r4, r3, r4\r |
| 67 | strneb r4, [r1,#\offs]\r |
| 68 | tsteq r4, #0x80\r |
| 69 | andeq r4, r4, #0x3f\r |
| 70 | streqb r4, [r1,#\offs]\r |
| 71 | .endm\r |
| 72 | \r |
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73 | @ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits\r |
| cc68a136 |
74 | .macro TileNormShHP\r |
| 75 | TilePixelShHP 12, 0 @ #0x0000f000\r |
| 76 | TilePixelShHP 8, 1 @ #0x00000f00\r |
| 77 | TilePixelShHP 4, 2 @ #0x000000f0\r |
| 78 | TilePixelShHP 0, 3 @ #0x0000000f\r |
| 79 | TilePixelShHP 28, 4 @ #0xf0000000\r |
| 80 | TilePixelShHP 24, 5 @ #0x0f000000\r |
| 81 | TilePixelShHP 20, 6 @ #0x00f00000\r |
| 82 | TilePixelShHP 16, 7 @ #0x000f0000\r |
| 83 | .endm\r |
| 84 | \r |
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85 | @ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
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86 | .macro TileFlipShHP\r |
| 87 | TilePixelShHP 16, 0 @ #0x000f0000\r |
| 88 | TilePixelShHP 20, 1 @ #0x00f00000\r |
| 89 | TilePixelShHP 24, 2 @ #0x0f000000\r |
| 90 | TilePixelShHP 28, 3 @ #0xf0000000\r |
| 91 | TilePixelShHP 0, 4 @ #0x0000000f\r |
| 92 | TilePixelShHP 4, 5 @ #0x000000f0\r |
| 93 | TilePixelShHP 8, 6 @ #0x00000f00\r |
| 94 | TilePixelShHP 12, 7 @ #0x0000f000\r |
| 95 | .endm\r |
| 96 | \r |
| 97 | \r |
| 98 | @ TileSingleSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx; r12: helper pattern 0xf\r |
| 99 | .macro TileSingleSh\r |
| 100 | tst r0, #1 @ not aligned?\r |
| 101 | mov r7, #0x00c000\r |
| 102 | orr r7, r7, #0xc0\r |
| 103 | ldrneb r4, [r1]\r |
| 104 | ldreqh r4, [r1]\r |
| 105 | orr r4, r4, r7\r |
| 106 | strneb r4, [r1], #1\r |
| 107 | streqh r4, [r1], #2\r |
| 108 | ldrh r4, [r1]\r |
| 109 | orr r4, r4, r7\r |
| 110 | strh r4, [r1], #2\r |
| 111 | ldrh r4, [r1]\r |
| 112 | orr r4, r4, r7\r |
| 113 | strh r4, [r1], #2\r |
| 114 | ldrh r4, [r1]\r |
| 115 | orr r4, r4, r7\r |
| 116 | strh r4, [r1], #2\r |
| 117 | ldrneb r4, [r1]\r |
| 118 | orr r4, r4, r7\r |
| 119 | strneb r4, [r1], #1\r |
| 120 | .endm\r |
| 121 | \r |
| 122 | @ TileSingleHi (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
| 123 | .macro TileSingleHi\r |
| 124 | tst r1, #1 @ not aligned?\r |
| 125 | mov r7, #0x008000\r |
| 126 | orr r7, r7, #0x80\r |
| 127 | ldrneb r4, [r1], #1\r |
| 128 | ldreqh r4, [r1], #2 @ 1ci\r |
| 129 | ldrh r12, [r1], #2\r |
| 130 | bic r4, r4, r7, lsr #1\r |
| 131 | orr r4, r4, r7\r |
| 132 | strneb r4, [r1, #-3]\r |
| 133 | streqh r4, [r1, #-4]\r |
| 134 | ldrh r4, [r1], #2\r |
| 135 | bic r12, r12, r7, lsr #1\r |
| 136 | orr r12, r12, r7\r |
| 137 | strh r12, [r1, #-4]\r |
| 138 | ldrh r12, [r1], #2\r |
| 139 | bic r4, r4, r7, lsr #1\r |
| 140 | orr r4, r4, r7\r |
| 141 | strh r4, [r1, #-4]\r |
| 142 | ldrneb r4, [r1]\r |
| 143 | bic r12, r12, r7, lsr #1\r |
| 144 | orr r12, r12, r7\r |
| 145 | strh r12, [r1, #-2]\r |
| 146 | bicne r4, r4, r7, lsr #1\r |
| 147 | orrne r4, r4, r7\r |
| 148 | strneb r4, [r1], #1\r |
| 149 | mov r12, #0xf\r |
| 150 | .endm\r |
| 151 | \r |
| 152 | .macro TileDoShGenPixel shift ofs\r |
| 153 | .if \shift\r |
| 154 | ands r4, r12, r2, lsr #\shift\r |
| 155 | .else\r |
| 156 | ands r4, r12, r2\r |
| 157 | .endif\r |
| 158 | beq 3f\r |
| 159 | cmp r4, #0xe\r |
| 160 | beq 2f\r |
| 161 | bgt 1f\r |
| 162 | orr r4, r3, r4\r |
| 163 | strb r4, [r1,#\ofs]\r |
| 164 | b 3f\r |
| 165 | 1:\r |
| 166 | ldrb r4, [r1,#\ofs] @ 2ci\r |
| 167 | orr r4, r4, #0xc0\r |
| 168 | strb r4, [r1,#\ofs]\r |
| 169 | b 3f\r |
| 170 | 2:\r |
| 171 | ldrb r4, [r1,#\ofs] @ 2ci\r |
| 172 | bic r4, r4, #0xc0\r |
| 173 | orr r4, r4, #0x80\r |
| 174 | strb r4, [r1,#\ofs]\r |
| 175 | 3:\r |
| 176 | .endm\r |
| 177 | \r |
| 178 | @ TileFlipSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
| 179 | .macro TileFlipSh\r |
| 180 | TileDoShGenPixel 16, 0 @ #0x000f0000\r |
| 181 | TileDoShGenPixel 20, 1 @ #0x00f00000\r |
| 182 | TileDoShGenPixel 24, 2 @ #0x0f000000\r |
| 183 | TileDoShGenPixel 28, 3 @ #0xf0000000\r |
| 184 | TileDoShGenPixel 0, 4 @ #0x0000000f\r |
| 185 | TileDoShGenPixel 4, 5 @ #0x000000f0\r |
| 186 | TileDoShGenPixel 8, 6 @ #0x00000f00\r |
| 187 | TileDoShGenPixel 12, 7 @ #0x0000f000\r |
| 188 | .endm\r |
| 189 | \r |
| 190 | @ TileNormSh (r1=pdest, r2=pixels8, r3=pal) r4,r7: scratch, r0=sx, r12: register with helper pattern 0xf\r |
| 191 | .macro TileNormSh\r |
| 192 | TileDoShGenPixel 12, 0 @ #0x0000f000\r |
| 193 | TileDoShGenPixel 8, 1 @ #0x00000f00\r |
| 194 | TileDoShGenPixel 4, 2 @ #0x000000f0\r |
| 195 | TileDoShGenPixel 0, 3 @ #0x0000000f\r |
| 196 | TileDoShGenPixel 28, 4 @ #0xf0000000\r |
| 197 | TileDoShGenPixel 24, 5 @ #0x0f000000\r |
| 198 | TileDoShGenPixel 20, 6 @ #0x00f00000\r |
| 199 | TileDoShGenPixel 16, 7 @ #0x000f0000\r |
| 200 | .endm\r |
| 201 | \r |
| 202 | \r |
| 203 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 204 | \r |
| 205 | @ struct TileStrip\r |
| 206 | @ {\r |
| 207 | @ int nametab; // 0x00\r |
| 208 | @ int line; // 0x04\r |
| 209 | @ int hscroll; // 0x08\r |
| 210 | @ int xmask; // 0x0C\r |
| 211 | @ int *hc; // 0x10 (pointer to cache buffer)\r |
| 212 | @ int cells; // 0x14\r |
| 213 | @ };\r |
| 214 | \r |
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215 | @ void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells);\r |
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216 | \r |
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217 | .global DrawLayer\r |
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218 | \r |
| 219 | DrawLayer:\r |
| 220 | stmfd sp!, {r4-r11,lr}\r |
| 221 | \r |
| 222 | ldr r11, =(Pico+0x22228) @ Pico.video\r |
| 223 | mov r8, #1\r |
| 224 | \r |
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225 | ldrb r7, [r11, #16] @ ??vv??hh\r |
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226 | \r |
| 227 | mov r6, r1 @ hcache\r |
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228 | orr r9, r3, r0, lsl #30\r |
| 229 | orr r9, r9, r2, lsl #8 @ r9=sh[31]|cellskip[15:8]|maxcells[7:0] (tmp)\r |
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230 | \r |
| 231 | mov r1, r7, lsl #4\r |
| 232 | orr r1, r1, #0x00ff\r |
| 233 | \r |
| 234 | and r10, r7, #3\r |
| 235 | cmp r10, #1\r |
| 236 | biclt r1, r1, #0xfc00\r |
| 237 | biceq r1, r1, #0xfe00\r |
| 238 | bicgt r1, r1, #0xff00 @ r1=ymask=(height<<8)|0xff; ...; // Y Mask in pixels\r |
| 239 | \r |
| 240 | add r10, r10, #5\r |
| 241 | cmp r10, #7\r |
| 242 | subge r10, r10, #1 @ r10=shift[width] (5,6,6,7)\r |
| 243 | \r |
| 244 | @ calculate xmask:\r |
| 245 | mov r5, r8, lsl r10\r |
| 246 | sub r5, r5, #1 @ r5=xmask\r |
| 247 | \r |
| 248 | @ Find name table:\r |
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249 | ands r0, r0, #1\r |
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250 | ldreqb r12, [r11, #2]\r |
| 251 | ldrneb r12, [r11, #4]\r |
| 252 | \r |
| 253 | ldr r2, =Scanline @ trying to make good use of pipeline here\r |
| 254 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
| 255 | \r |
| 256 | moveq r12, r12, lsl #10\r |
| 257 | movne r12, r12, lsl #13\r |
| 258 | and r12, r12, #(7<<13) @ r12=(ts->nametab<<1) (halfword compliant)\r |
| 259 | \r |
| 260 | ldrh r8, [r11, #12]\r |
| 261 | ldrb r7, [r11, #11]\r |
| 262 | ldr r2, [r2]\r |
| 263 | \r |
| 264 | mov r4, r8, lsr #8 @ pvid->reg[13]\r |
| 265 | mov r4, r4, lsl #10 @ htab=pvid->reg[13]<<9; (halfwords)\r |
| 266 | tst r7, #2\r |
| 267 | addne r4, r4, r2, lsl #2 @ htab+=Scanline<<1; // Offset by line\r |
| 268 | tst r7, #1\r |
| 269 | biceq r4, r4, #0x1f @ htab&=~0xf; // Offset by tile\r |
| 270 | add r4, r4, r0, lsl #1 @ htab+=plane\r |
| 271 | bic r4, r4, #0x00ff0000 @ just in case\r |
| 272 | ldrh r3, [lr, r4] @ r3=hscroll\r |
| 273 | \r |
| 274 | tst r7, #4\r |
| 275 | bne .DrawStrip_vsscroll\r |
| 276 | \r |
| 277 | @ Get vertical scroll value:\r |
| 278 | add r7, lr, #0x012000\r |
| 279 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
| 280 | ldr r7, [r7]\r |
| 281 | \r |
| 282 | tst r8, #2\r |
| 283 | tstne r8, #4\r |
| 284 | bne .DrawStrip_interlace\r |
| 285 | \r |
| 286 | tst r0, r0\r |
| 287 | movne r7, r7, lsr #16\r |
| 288 | \r |
| 289 | @ Find the line in the name table\r |
| 290 | add r2, r2, r7\r |
| 291 | and r2, r2, r1\r |
| 292 | mov r4, r2, lsr #3\r |
| 293 | add r10, r10, #1 @ shift[width]++\r |
| 294 | add r12, r12, r4, lsl r10 @ nametab+=(ts.line>>3)<<shift[width];\r |
| 295 | \r |
| 296 | @ ldmia r0, {r1,r2,r3,r5,r6,r9} @ r2=line, r3=ts->hscroll, r5=ts->xmask, r6=ts->hc, r9=ts->cells\r |
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297 | \r |
| 298 | and r10,r2, #7\r |
| 299 | mov r10,r10, lsl #1 @ r10=ty=(ts->line&7)<<1;\r |
| 300 | orr r10,r10, r9, lsl #24\r |
| 301 | \r |
| 302 | rsb r8, r3, #0\r |
| 303 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
| 304 | \r |
| 305 | sub r1, r3, #1\r |
| 306 | and r1, r1, #7\r |
| 307 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
| 308 | \r |
| 309 | tst r9, #1<<31\r |
| 310 | mov r3, #0\r |
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311 | orrne r10,r10, #1<<23 @ r10=(cells<<24|sh<<23|hi_not_empty<<22|had_output<<21|ty)\r |
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312 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
| 313 | \r |
| cc68a136 |
314 | cmp r7, #8\r |
| 315 | addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll\r |
| 316 | \r |
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317 | and r9, r9, #0xff00\r |
| 318 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
| 319 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
| 320 | sub r10,r10,r9, lsl #16 @ cells-=cellskip\r |
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321 | \r |
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322 | @ cache some stuff to avoid mem access\r |
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323 | .if OVERRIDE_HIGHCOL\r |
| 324 | ldr r11,=HighCol\r |
| 325 | mov r0, #0xf\r |
| 326 | ldr r11,[r11]\r |
| 327 | .else\r |
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328 | ldr r11,=HighCol\r |
| 329 | mov r0, #0xf\r |
| ea8c405f |
330 | .endif\r |
| 331 | \r |
| 332 | mvn r9, #0 @ r9=prevcode=-1\r |
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333 | add r1, r11, r7 @ r1=pdest\r |
| 334 | \r |
| 335 | \r |
| 336 | @ r4 & r7 are scratch in this loop\r |
| 337 | .dsloop_subr1:\r |
| 338 | sub r1, r1, #8\r |
| 339 | .dsloop: @ 40-41 times\r |
| 340 | subs r10,r10, #0x01000000\r |
| 341 | bmi .dsloop_exit\r |
| 342 | \r |
| 343 | .dsloop_enter:\r |
| 344 | and r7, r5, r8\r |
| 345 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
| 346 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
| 347 | \r |
| 348 | add r1, r1, #8\r |
| 349 | add r8, r8, #1\r |
| 350 | \r |
| 351 | tst r7, #0x8000\r |
| 352 | bne .DrawStrip_hiprio\r |
| 353 | \r |
| 354 | cmp r7, r9\r |
| 355 | beq .DrawStrip_samecode @ we know stuff about this tile already\r |
| 356 | \r |
| 357 | mov r9, r7 @ remember code\r |
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358 | orr r10, r10, #1<<21 @ seen non hi-prio tile\r |
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359 | \r |
| 360 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
| 361 | mov r2, r2, lsl #1\r |
| 362 | add r2, r2, r10, lsl #17\r |
| 363 | mov r2, r2, lsr #17\r |
| 364 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
| 365 | \r |
| 366 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 367 | \r |
| 368 | bic r7, r3, #0x3f\r |
| 369 | and r3, r9, #0x6000\r |
| 370 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
| 371 | \r |
| 372 | .DrawStrip_samecode:\r |
| 373 | tst r2, r2\r |
| 374 | beq .dsloop @ tileline blank\r |
| 375 | \r |
| 376 | cmp r2, r2, ror #4\r |
| 377 | beq .DrawStrip_SingleColor @ tileline singlecolor \r |
| 378 | \r |
| 379 | tst r9, #0x0800\r |
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380 | bne .DrawStrip_TileFlip\r |
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381 | \r |
| 382 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
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383 | .DrawStrip_TileNorm:\r |
| 384 | TileNorm r0\r |
| 385 | b .dsloop\r |
| 386 | \r |
| 7a7c6476 |
387 | .DrawStrip_TileFlip:\r |
| 388 | TileFlip r0\r |
| 389 | b .dsloop\r |
| 390 | \r |
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391 | .DrawStrip_SingleColor:\r |
| 392 | and r4, r2, #0xf\r |
| 393 | orr r4, r3, r4\r |
| 394 | orr r4, r4, r4, lsl #8\r |
| 395 | tst r1, #1 @ not aligned?\r |
| 396 | strneb r4, [r1], #1\r |
| 397 | streqh r4, [r1], #2\r |
| 398 | strh r4, [r1], #2\r |
| 399 | strh r4, [r1], #2\r |
| 400 | strh r4, [r1], #2\r |
| 401 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
| 402 | b .dsloop_subr1\r |
| 403 | \r |
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404 | .DrawStrip_hiprio_maybempt:\r |
| 405 | cmp r7, r9\r |
| 406 | beq .dsloop @ must've been empty, otherwise we wouldn't get here\r |
| 407 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
| 408 | mov r2, r2, lsl #1\r |
| 409 | add r2, r2, r10, lsl #17\r |
| 410 | mov r2, r2, lsr #17\r |
| 411 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
| 412 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 413 | mov r9, r7 @ remember code\r |
| 414 | tst r2, r2\r |
| 740da8c6 |
415 | beq .dsloop\r |
| 416 | orr r10, r10, #1<<22\r |
| 417 | \r |
| 418 | .DrawStrip_hiprio:\r |
| 419 | tst r10, #0x00c00000\r |
| 420 | beq .DrawStrip_hiprio_maybempt\r |
| 421 | sub r0, r1, r11\r |
| 422 | orr r7, r7, r0, lsl #16\r |
| 423 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
| 424 | tst r7, #0x1000\r |
| 425 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
| 426 | str r7, [r6], #4 @ cache hi priority tile\r |
| 427 | mov r0, #0xf\r |
| cc68a136 |
428 | b .dsloop\r |
| 429 | \r |
| 430 | .dsloop_exit:\r |
| 740da8c6 |
431 | tst r10, #1<<21 @ seen non hi-prio tile\r |
| 432 | ldreq r1, =rendstatus\r |
| cc68a136 |
433 | mov r0, #0\r |
| 740da8c6 |
434 | ldreq r2, [r1]\r |
| cc68a136 |
435 | str r0, [r6] @ terminate the cache list\r |
| 740da8c6 |
436 | orreq r2, r2, #0x40 @ had a layer with all hi-prio tiles\r |
| 437 | streq r2, [r1]\r |
| cc68a136 |
438 | \r |
| 439 | ldmfd sp!, {r4-r11,lr}\r |
| 440 | bx lr\r |
| 441 | \r |
| 6d7acf9e |
442 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| cc68a136 |
443 | \r |
| 444 | .DrawStrip_vsscroll:\r |
| 6d7acf9e |
445 | rsb r8, r3, #0\r |
| 446 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
| 7b802576 |
447 | bic r8, r8, #0x3fc00000\r |
| 448 | orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r |
| cc68a136 |
449 | \r |
| 6d7acf9e |
450 | ldr r4, =Scanline\r |
| 451 | orr r5, r1, r10, lsl #24\r |
| 452 | ldr r4, [r4]\r |
| 453 | sub r1, r3, #1\r |
| 454 | orr r5, r5, r4, lsl #16 @ r5=(shift_width[31:24]|scanline[23:16]|ymask[15:0])\r |
| 455 | and r1, r1, #7\r |
| 456 | add r7, r1, #1 @ r7=dx=((ts->hscroll-1)&7)+1\r |
| cc68a136 |
457 | \r |
| 6d7acf9e |
458 | mov r10,r9, lsl #16\r |
| 83c093a4 |
459 | tst r0, #1\r |
| 6d7acf9e |
460 | orrne r10,r10, #0x8000\r |
| 461 | tst r9, #1<<31\r |
| 462 | mov r3, #0\r |
| 463 | orr r10,r10, #0xff000000 @ will be adjusted on entering loop\r |
| 83c093a4 |
464 | 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 |
465 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
| cc68a136 |
466 | \r |
| 83c093a4 |
467 | cmp r7, #8\r |
| 468 | subne r10,r10, #0x01000000 @ have hscroll, start with negative cell\r |
| 469 | \r |
| 470 | and r9, r9, #0xff00\r |
| 471 | add r8, r8, r9, lsr #8 @ tilex+=cellskip\r |
| 472 | add r7, r7, r9, lsr #5 @ dx+=cellskip<<3;\r |
| 473 | add r10,r10,r9, lsl #16 @ cell+=cellskip\r |
| cc68a136 |
474 | \r |
| 6d7acf9e |
475 | @ cache some stuff to avoid mem access\r |
| ea8c405f |
476 | .if OVERRIDE_HIGHCOL\r |
| 6d7acf9e |
477 | ldr r11,=HighCol\r |
| 478 | mov r0, #0xf\r |
| ea8c405f |
479 | ldr r11,[r11]\r |
| 480 | .else\r |
| 481 | ldr r11,=HighCol\r |
| 482 | mov r0, #0xf\r |
| 483 | .endif\r |
| 6d7acf9e |
484 | \r |
| ea8c405f |
485 | mvn r9, #0 @ r9=prevcode=-1\r |
| 486 | add r1, r11, r7 @ r1=pdest\r |
| 6d7acf9e |
487 | \r |
| 488 | @ r4 & r7 are scratch in this loop\r |
| 489 | .dsloop_vs_subr1:\r |
| 490 | sub r1, r1, #8\r |
| 491 | .dsloop_vs: @ 40-41 times\r |
| 492 | add r10,r10, #0x01000000\r |
| 493 | and r4, r10, #0x003f0000\r |
| 494 | cmp r4, r10, asr #8\r |
| 740da8c6 |
495 | ble .dsloop_vs_exit\r |
| 6d7acf9e |
496 | \r |
| 497 | @ calc offset and read tileline code to r7, also calc ty\r |
| 498 | add r7, lr, #0x012000\r |
| 499 | add r7, r7, #0x000180 @ r7=Pico.vsram (Pico+0x22180)\r |
| 500 | add r7, r7, r10,asr #23 @ vsram + ((cell&~1)<<1)\r |
| 501 | bic r7, r7, #3\r |
| 502 | tst r10,#0x8000 @ plane1?\r |
| 503 | addne r7, r7, #2\r |
| 504 | ldrh r7, [r7] @ r7=vscroll\r |
| 505 | \r |
| 506 | bic r10,r10,#0xff @ clear old ty\r |
| 7b802576 |
507 | and r4, r5, #0xff0000 @ scanline\r |
| 508 | add r4, r4, r7, lsl #16 @ ... += vscroll\r |
| 509 | and r4, r4, r5, lsl #16 @ ... &= ymask\r |
| 6d7acf9e |
510 | and r7, r4, #0x70000\r |
| 511 | orr r10,r10,r7, lsr #15 @ new ty\r |
| 512 | \r |
| 513 | mov r4, r4, lsr #19\r |
| 514 | mov r7, r5, lsr #24\r |
| 515 | mov r4, r4, lsl r7 @ nametabadd\r |
| 516 | \r |
| 517 | and r7, r8, r8, lsr #25\r |
| 518 | add r7, lr, r7, lsl #1 @ Pico.vram+((tilex&ts->xmask) as halfwords)\r |
| 519 | add r7, r7, r4, lsl #1\r |
| 520 | ldrh r7, [r7, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
| 521 | \r |
| 522 | add r1, r1, #8\r |
| 523 | add r8, r8, #1\r |
| 524 | \r |
| 525 | tst r7, #0x8000\r |
| 526 | bne .DrawStrip_vs_hiprio\r |
| 527 | \r |
| 528 | cmp r7, r9\r |
| 529 | beq .DrawStrip_vs_samecode @ we know stuff about this tile already\r |
| 530 | \r |
| 531 | mov r9, r7 @ remember code\r |
| 7b802576 |
532 | orr r8, r8, #(1<<24)@ seen non hi-prio tile\r |
| 6d7acf9e |
533 | \r |
| 534 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
| 535 | mov r2, r2, lsl #1\r |
| 536 | add r2, r2, r10, lsl #17\r |
| 537 | mov r2, r2, lsr #17\r |
| 538 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
| 539 | \r |
| 540 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 541 | \r |
| 542 | bic r7, r3, #0x3f\r |
| 543 | and r3, r9, #0x6000\r |
| 544 | add r3, r7, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
| 545 | \r |
| 546 | .DrawStrip_vs_samecode:\r |
| 547 | tst r2, r2\r |
| 548 | beq .dsloop_vs @ tileline blank\r |
| 549 | \r |
| 550 | cmp r2, r2, ror #4\r |
| 551 | beq .DrawStrip_vs_SingleColor @ tileline singlecolor \r |
| 552 | \r |
| 553 | tst r9, #0x0800\r |
| 7a7c6476 |
554 | bne .DrawStrip_vs_TileFlip\r |
| 6d7acf9e |
555 | \r |
| 556 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
| 6d7acf9e |
557 | .DrawStrip_vs_TileNorm:\r |
| 558 | TileNorm r0\r |
| 559 | b .dsloop_vs\r |
| 560 | \r |
| 7a7c6476 |
561 | .DrawStrip_vs_TileFlip:\r |
| 562 | TileFlip r0\r |
| 563 | b .dsloop_vs\r |
| 564 | \r |
| 6d7acf9e |
565 | .DrawStrip_vs_SingleColor:\r |
| 566 | and r4, r2, #0xf\r |
| 567 | orr r4, r3, r4\r |
| 568 | orr r4, r4, r4, lsl #8\r |
| 569 | tst r1, #1 @ not aligned?\r |
| 570 | strneb r4, [r1], #1\r |
| 571 | streqh r4, [r1], #2\r |
| 572 | strh r4, [r1], #2\r |
| 573 | strh r4, [r1], #2\r |
| 574 | strh r4, [r1], #2\r |
| 575 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
| 576 | b .dsloop_vs_subr1\r |
| 577 | \r |
| 578 | .DrawStrip_vs_hiprio:\r |
| 579 | tst r10, #0x00c00000\r |
| 580 | beq .DrawStrip_vs_hiprio_maybempt\r |
| 581 | sub r0, r1, r11\r |
| 582 | orr r7, r7, r0, lsl #16\r |
| 583 | orr r7, r7, r10, lsl #25 @ (ty<<25)\r |
| 584 | tst r7, #0x1000\r |
| 585 | eorne r7, r7, #7<<26 @ if(code&0x1000) cval^=7<<26;\r |
| 586 | str r7, [r6], #4 @ cache hi priority tile\r |
| 587 | mov r0, #0xf\r |
| 588 | b .dsloop_vs\r |
| 589 | \r |
| 590 | .DrawStrip_vs_hiprio_maybempt:\r |
| 591 | cmp r7, r9\r |
| 592 | beq .dsloop_vs @ must've been empty, otherwise we wouldn't get here\r |
| 593 | movs r2, r7, lsl #20 @ if (code&0x1000)\r |
| 594 | mov r2, r2, lsl #1\r |
| 595 | add r2, r2, r10, lsl #17\r |
| 596 | mov r2, r2, lsr #17\r |
| 597 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
| 598 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 599 | mov r9, r7 @ remember code\r |
| 600 | tst r2, r2\r |
| 601 | orrne r10, r10, #1<<22\r |
| 602 | bne .DrawStrip_vs_hiprio\r |
| 603 | b .dsloop_vs\r |
| 604 | \r |
| 740da8c6 |
605 | .dsloop_vs_exit:\r |
| 7b802576 |
606 | tst r8, #(1<<24) @ seen non hi-prio tile\r |
| 740da8c6 |
607 | ldreq r1, =rendstatus\r |
| 608 | mov r0, #0\r |
| 609 | ldreq r2, [r1]\r |
| 610 | str r0, [r6] @ terminate the cache list\r |
| 611 | orreq r2, r2, #0x40 @ had a layer with all hi-prio tiles\r |
| 612 | streq r2, [r1]\r |
| 613 | \r |
| 614 | ldmfd sp!, {r4-r11,lr}\r |
| 615 | bx lr\r |
| 616 | \r |
| 6d7acf9e |
617 | \r |
| 618 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| cc68a136 |
619 | \r |
| 620 | @ interlace mode 2? Sonic 2?\r |
| 621 | .DrawStrip_interlace:\r |
| 622 | tst r0, r0\r |
| 623 | moveq r7, r7, lsl #21\r |
| 624 | movne r7, r7, lsl #5\r |
| 625 | \r |
| 626 | @ Find the line in the name table\r |
| 627 | add r2, r7, r2, lsl #22 @ r2=(vscroll+(Scanline<<1))<<21 (11 bits);\r |
| 628 | orr r1, r1, #0x80000000\r |
| 629 | and r2, r2, r1, ror #10 @ &((ymask<<1)|1)<<21;\r |
| 630 | mov r2, r2, lsr #21\r |
| 631 | mov r4, r2, lsr #4\r |
| 632 | mov r12, r12, lsr #1 @ halfwords\r |
| 633 | add r0, r12, r4, lsl r10 @ nametab+=(ts.line>>4)<<shift[width];\r |
| 634 | and r9, r9, #0xff\r |
| 635 | \r |
| 636 | sub sp, sp, #6*4\r |
| 637 | stmia sp, {r0,r2,r3,r5,r6,r9}\r |
| 638 | \r |
| 639 | mov r0, sp\r |
| 640 | bl DrawStripInterlace @ struct TileStrip *ts\r |
| 641 | \r |
| 642 | add sp, sp, #6*4\r |
| 643 | ldmfd sp!, {r4-r11,lr}\r |
| 644 | bx lr\r |
| 645 | \r |
| 646 | .pool\r |
| 647 | \r |
| 648 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 649 | \r |
| 650 | \r |
| 651 | .global BackFill @ int reg7, int sh\r |
| 652 | \r |
| 653 | BackFill:\r |
| 654 | stmfd sp!, {r4-r9,lr}\r |
| 655 | \r |
| ea8c405f |
656 | .if OVERRIDE_HIGHCOL\r |
| 657 | ldr lr, =HighCol\r |
| 658 | mov r0, r0, lsl #26\r |
| 659 | ldr lr, [lr]\r |
| 660 | mov r0, r0, lsr #26\r |
| 661 | add lr, lr, #8\r |
| 662 | .else\r |
| cc68a136 |
663 | ldr lr, =(HighCol+8)\r |
| cc68a136 |
664 | mov r0, r0, lsl #26\r |
| 665 | mov r0, r0, lsr #26\r |
| ea8c405f |
666 | .endif\r |
| 667 | \r |
| cc68a136 |
668 | orr r0, r0, r1, lsl #6\r |
| 669 | orr r0, r0, r0, lsl #8\r |
| 670 | orr r0, r0, r0, lsl #16\r |
| 671 | \r |
| 672 | mov r1, r0\r |
| 673 | mov r2, r0\r |
| 674 | mov r3, r0\r |
| 675 | mov r4, r0\r |
| 676 | mov r5, r0\r |
| 677 | mov r6, r0\r |
| 678 | mov r7, r0\r |
| 679 | \r |
| 680 | @ go go go!\r |
| 681 | stmia lr!, {r0-r7} @ 10*8*4\r |
| 682 | stmia lr!, {r0-r7}\r |
| 683 | stmia lr!, {r0-r7}\r |
| 684 | stmia lr!, {r0-r7}\r |
| 685 | stmia lr!, {r0-r7}\r |
| 686 | stmia lr!, {r0-r7}\r |
| 687 | stmia lr!, {r0-r7}\r |
| 688 | stmia lr!, {r0-r7}\r |
| 689 | stmia lr!, {r0-r7}\r |
| 690 | stmia lr!, {r0-r7}\r |
| 691 | \r |
| 692 | ldmfd sp!, {r4-r9,r12}\r |
| 693 | bx r12\r |
| 694 | \r |
| 695 | \r |
| 696 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 697 | \r |
| 698 | \r |
| 7a7c6476 |
699 | .global DrawTilesFromCache @ int *hc, int sh, int rlim\r |
| cc68a136 |
700 | \r |
| 701 | DrawTilesFromCache:\r |
| 702 | stmfd sp!, {r4-r8,r11,lr}\r |
| 703 | \r |
| cc68a136 |
704 | @ cache some stuff to avoid mem access\r |
| ea8c405f |
705 | .if OVERRIDE_HIGHCOL\r |
| cc68a136 |
706 | ldr r11,=HighCol\r |
| cc68a136 |
707 | mov r12,#0xf\r |
| ea8c405f |
708 | ldr r11,[r11]\r |
| 709 | .else\r |
| 710 | ldr r11,=HighCol\r |
| 711 | mov r12,#0xf\r |
| 712 | .endif\r |
| 713 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
| cc68a136 |
714 | \r |
| 740da8c6 |
715 | mvn r5, #0 @ r5=prevcode=-1\r |
| 7a7c6476 |
716 | ands r8, r1, #1\r |
| 717 | orr r8, r8, r2, lsl #1\r |
| 740da8c6 |
718 | bne .dtfc_check_rendflags\r |
| 719 | \r |
| cc68a136 |
720 | @ scratch: r4, r7\r |
| 721 | .dtfc_loop:\r |
| 722 | ldr r6, [r0], #4 @ read code\r |
| 723 | movs r1, r6, lsr #16 @ r1=dx;\r |
| 724 | ldmeqfd sp!, {r4-r8,r11,pc} @ dx is never zero, this must be a terminator, return\r |
| 7a7c6476 |
725 | bic r4, r1, #0xfe00\r |
| 726 | add r1, r11, r4 @ r1=pdest\r |
| cc68a136 |
727 | \r |
| 728 | mov r7, r6, lsl #16\r |
| 729 | cmp r5, r7, lsr #16\r |
| 730 | beq .dtfc_samecode @ if (code==prevcode)\r |
| 731 | \r |
| 732 | mov r5, r7, lsr #16\r |
| 733 | \r |
| 734 | mov r2, r5, lsl #21\r |
| 735 | mov r2, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4;\r |
| 736 | add r2, r2, r6, lsr #25 @ addr+=ty\r |
| 737 | \r |
| 738 | and r3, r5, #0x6000\r |
| 739 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
| 740 | \r |
| 741 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 742 | \r |
| 743 | .dtfc_samecode:\r |
| 7a7c6476 |
744 | rsbs r4, r4, r8, lsr #1\r |
| 745 | bmi .dtfc_cut_tile\r |
| 746 | \r |
| 747 | tst r8, #1\r |
| cc68a136 |
748 | bne .dtfc_shadow\r |
| 749 | \r |
| 750 | tst r2, r2\r |
| 751 | beq .dtfc_loop\r |
| 752 | \r |
| 753 | cmp r2, r2, ror #4\r |
| 754 | beq .dtfc_SingleColor @ tileline singlecolor \r |
| 755 | \r |
| 756 | tst r5, #0x0800\r |
| 7a7c6476 |
757 | bne .dtfc_TileFlip\r |
| cc68a136 |
758 | \r |
| 759 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
760 | .dtfc_TileNorm:\r |
| 761 | TileNorm r12\r |
| 762 | b .dtfc_loop\r |
| 763 | \r |
| 7a7c6476 |
764 | .dtfc_TileFlip:\r |
| 765 | TileFlip r12\r |
| 766 | b .dtfc_loop\r |
| 767 | \r |
| cc68a136 |
768 | .dtfc_SingleColor:\r |
| 769 | and r4, r2, #0xf\r |
| 770 | orr r4, r3, r4\r |
| 771 | orr r4, r4, r4, lsl #8\r |
| 772 | tst r1, #1 @ not aligned?\r |
| 773 | strneb r4, [r1], #1\r |
| 774 | streqh r4, [r1], #2\r |
| 775 | strh r4, [r1], #2\r |
| 776 | strh r4, [r1], #2\r |
| 777 | strh r4, [r1], #2\r |
| 778 | strneb r4, [r1], #1 @ have a remaining unaligned pixel?\r |
| 779 | b .dtfc_loop\r |
| 780 | \r |
| 781 | .dtfc_shadow:\r |
| 782 | tst r2, r2\r |
| 783 | beq .dtfc_shadow_blank\r |
| 784 | \r |
| 785 | cmp r2, r2, ror #4\r |
| 786 | beq .dtfc_SingleColor @ tileline singlecolor \r |
| 787 | \r |
| 788 | tst r5, #0x0800\r |
| 7a7c6476 |
789 | bne .dtfc_TileFlipShHP\r |
| cc68a136 |
790 | \r |
| 791 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
792 | .dtfc_TileNormShHP:\r |
| 793 | TileNormShHP\r |
| 794 | b .dtfc_loop\r |
| 795 | \r |
| 7a7c6476 |
796 | .dtfc_TileFlipShHP:\r |
| 797 | TileFlipShHP\r |
| 798 | b .dtfc_loop\r |
| 799 | \r |
| cc68a136 |
800 | .dtfc_shadow_blank:\r |
| 801 | ldrb r4, [r1] @ 1ci\r |
| 802 | ldrb r12,[r1,#1]\r |
| 803 | tst r4, #0x80\r |
| 804 | andeq r4, r4,#0x3f\r |
| 805 | streqb r4, [r1]\r |
| 806 | tst r12,#0x80\r |
| 807 | ldrb r4, [r1,#2]\r |
| 808 | andeq r12,r12,#0x3f\r |
| 809 | streqb r12,[r1,#1]\r |
| 810 | tst r4, #0x80\r |
| 811 | ldrb r12,[r1,#3]\r |
| 812 | andeq r4, r4,#0x3f\r |
| 813 | streqb r4, [r1,#2]\r |
| 814 | tst r12,#0x80\r |
| 815 | ldrb r4, [r1,#4]\r |
| 816 | andeq r12,r12,#0x3f\r |
| 817 | streqb r12,[r1,#3]\r |
| 818 | tst r4, #0x80\r |
| 819 | ldrb r12,[r1,#5]\r |
| 820 | andeq r4, r4,#0x3f\r |
| 821 | streqb r4, [r1,#4]\r |
| 822 | tst r12,#0x80\r |
| 823 | ldrb r4, [r1,#6]\r |
| 824 | andeq r12,r12,#0x3f\r |
| 825 | streqb r12,[r1,#5]\r |
| 826 | tst r4, #0x80\r |
| 827 | ldrb r12,[r1,#7]\r |
| 828 | andeq r4, r4,#0x3f\r |
| 829 | streqb r4, [r1,#6]\r |
| 830 | tst r12,#0x80\r |
| 831 | andeq r12,r12,#0x3f\r |
| 832 | streqb r12,[r1,#7]\r |
| 833 | mov r12, #0xf\r |
| 834 | b .dtfc_loop\r |
| 835 | \r |
| 7a7c6476 |
836 | .dtfc_cut_tile:\r |
| 837 | add r4, r4, #7 @ 0-6\r |
| 838 | mov r4, r4, lsl #2\r |
| 839 | mov r12,#0xf<<28\r |
| 840 | mov r12,r12,asr r4\r |
| 841 | mov r2, r2, ror #16\r |
| 842 | tst r5, #0x0800 @ flipped?\r |
| 843 | mvnne r12,r12\r |
| 844 | and r2, r2, r12\r |
| 845 | mov r2, r2, ror #16\r |
| 846 | mov r12,#0xf\r |
| 847 | tst r8, #1\r |
| 848 | bne .dtfc_shadow\r |
| 849 | tst r2, r2\r |
| 850 | beq .dtfc_loop\r |
| 851 | tst r5, #0x0800\r |
| 852 | beq .dtfc_TileNorm\r |
| 853 | b .dtfc_TileFlip\r |
| 854 | \r |
| 740da8c6 |
855 | @ check if we have detected layer covered with hi-prio tiles:\r |
| 856 | .dtfc_check_rendflags:\r |
| 857 | ldr r1, =rendstatus\r |
| 858 | ldr r2, [r1]\r |
| 859 | tst r2, #0xc0\r |
| 860 | beq .dtfc_loop\r |
| 7a7c6476 |
861 | bic r8, r8, #1 @ sh/hi mode off\r |
| 740da8c6 |
862 | tst r2, #0x80\r |
| 863 | bne .dtfc_loop @ already processed\r |
| 864 | orr r2, r2, #0x80\r |
| 865 | str r2, [r1]\r |
| 866 | \r |
| 867 | add r1, r11,#8\r |
| 868 | mov r3, #320/4\r |
| 869 | mov r7, #0x80\r |
| 870 | orr r7, r7, r7, lsl #8\r |
| 871 | orr r7, r7, r7, lsl #16\r |
| 872 | mov r6, #0x3f\r |
| 873 | orr r6, r6, r6, lsl #8\r |
| 874 | orr r6, r6, r6, lsl #16\r |
| 875 | .dtfc_loop_shprep:\r |
| 876 | subs r3, r3, #1\r |
| 877 | bmi .dtfc_loop @ done\r |
| 878 | ldr r2, [r1]\r |
| 879 | tst r2, r7\r |
| 880 | andeq r2, r2, r6\r |
| 881 | streq r2, [r1], #4\r |
| 882 | beq .dtfc_loop_shprep\r |
| 883 | tst r2, #0x80000000\r |
| 884 | biceq r2, r2, #0xc0000000\r |
| 885 | tst r2, #0x00800000\r |
| 886 | biceq r2, r2, #0x00c00000\r |
| 887 | tst r2, #0x00008000\r |
| 888 | biceq r2, r2, #0x0000c000\r |
| 889 | tst r2, #0x00000080\r |
| 890 | biceq r2, r2, #0x000000c0\r |
| 891 | str r2, [r1], #4\r |
| 892 | b .dtfc_loop_shprep\r |
| 893 | \r |
| cc68a136 |
894 | .pool\r |
| 895 | \r |
| 896 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 897 | \r |
| 898 | \r |
| e5fa9817 |
899 | .global DrawSpritesFromCache @ int *hc, int maxwidth, int prio, int sh\r |
| cc68a136 |
900 | \r |
| 901 | DrawSpritesFromCache:\r |
| 902 | stmfd sp!, {r4-r11,lr}\r |
| 903 | \r |
| 904 | @ cache some stuff to avoid mem access\r |
| ea8c405f |
905 | .if OVERRIDE_HIGHCOL\r |
| cc68a136 |
906 | ldr r11,=HighCol\r |
| ea8c405f |
907 | mov r12,#0xf\r |
| 908 | ldr r11,[r11]\r |
| 909 | .else\r |
| 910 | ldr r11,=HighCol\r |
| 911 | mov r12,#0xf\r |
| 912 | .endif\r |
| cc68a136 |
913 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
| e5fa9817 |
914 | mov r6, r3, lsl #31\r |
| cc68a136 |
915 | orr r6, r6, #1<<30\r |
| cc68a136 |
916 | \r |
| 917 | mov r10, r0\r |
| 918 | \r |
| 919 | .dsfc_loop:\r |
| 920 | ldr r9, [r10], #4 @ read code\r |
| 921 | bic r6, r6, #7 @ using pipeline\r |
| 922 | tst r9, r9\r |
| 923 | ldmeqfd sp!, {r4-r11,pc}\r |
| 924 | \r |
| 925 | mov r4, r9, lsl #28\r |
| 926 | orr r6, r6, r4, lsr #30\r |
| 927 | add r6, r6, #1 @ r6=s1cc???? ... ?????www (s=shadow/hilight, cc=pal, w=width)\r |
| 928 | \r |
| 929 | and r5, r9, #3\r |
| 930 | add r5, r5, #1 @ r5=delta\r |
| 931 | tst r9, #0x10000\r |
| 932 | rsbne r5, r5, #0 @ Flip X\r |
| 933 | mov r5, r5, lsl #4\r |
| 934 | \r |
| 935 | mov r2, r9, lsr #17\r |
| 936 | mov r8, r2, lsl #1 @ tile=((unsigned int)code>>17)<<1;\r |
| 937 | \r |
| 938 | and r3, r9, #0x30 @ r3=pal=(code&0x30);\r |
| 939 | \r |
| 940 | bic r6, r6, #3<<28\r |
| 941 | orr r6, r6, r3, lsl #24\r |
| 942 | \r |
| 943 | mov r0, r9, lsl #16\r |
| 944 | mov r0, r0, asr #22 @ sx=(code<<16)>>22\r |
| 945 | adds r0, r0, #0 @ set ZV\r |
| 946 | b .dsfc_inloop_enter\r |
| 947 | \r |
| 948 | @ scratch: r4, r7\r |
| 949 | .dsfc_inloop:\r |
| 950 | sub r6, r6, #1\r |
| 951 | tst r6, #7\r |
| 952 | beq .dsfc_loop\r |
| 953 | adds r0, r0, #8\r |
| 954 | add r8, r8, r5\r |
| 955 | \r |
| 956 | .dsfc_inloop_enter:\r |
| 957 | ble .dsfc_inloop\r |
| 958 | cmp r0, #328\r |
| 959 | bge .dsfc_loop\r |
| 960 | \r |
| 961 | mov r8, r8, lsl #17\r |
| 962 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
| 963 | \r |
| 964 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+tile); // Get 8 pixels\r |
| 965 | add r1, r11, r0 @ r1=pdest\r |
| 966 | tst r2, r2\r |
| 967 | beq .dsfc_inloop\r |
| 968 | \r |
| 969 | cmp r12, r6, lsr #28\r |
| 970 | beq .dsfc_shadow\r |
| 971 | \r |
| 972 | cmp r2, r2, ror #4\r |
| 973 | beq .dsfc_SingleColor @ tileline singlecolor \r |
| 974 | \r |
| 975 | tst r9, #0x10000\r |
| 7a7c6476 |
976 | bne .dsfc_TileFlip\r |
| cc68a136 |
977 | \r |
| 978 | @ TileFlip (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
979 | .dsfc_TileNorm:\r |
| 980 | TileNorm r12\r |
| 981 | b .dsfc_inloop\r |
| 982 | \r |
| 7a7c6476 |
983 | .dsfc_TileFlip:\r |
| 984 | TileFlip r12\r |
| 985 | b .dsfc_inloop\r |
| 986 | \r |
| cc68a136 |
987 | .dsfc_SingleColor:\r |
| 988 | tst r0, #1 @ not aligned?\r |
| 989 | and r4, r2, #0xf\r |
| 990 | orr r4, r3, r4\r |
| 991 | orr r4, r4, r4, lsl #8\r |
| 992 | strneb r4, [r1], #1\r |
| 993 | streqh r4, [r1], #2\r |
| 994 | strh r4, [r1], #2\r |
| 995 | strh r4, [r1], #2\r |
| 996 | strh r4, [r1], #2\r |
| 997 | strneb r4, [r1], #1\r |
| 998 | b .dsfc_inloop\r |
| 999 | \r |
| 1000 | .dsfc_shadow:\r |
| 1001 | cmp r2, r2, ror #4\r |
| 1002 | beq .dsfc_singlec_sh\r |
| 1003 | \r |
| 1004 | tst r9, #0x10000\r |
| 7a7c6476 |
1005 | bne .dsfc_TileFlip_sh\r |
| cc68a136 |
1006 | \r |
| 1007 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
1008 | .dsfc_TileNorm_sh:\r |
| 1009 | TileNormSh\r |
| 1010 | b .dsfc_inloop\r |
| 1011 | \r |
| 7a7c6476 |
1012 | .dsfc_TileFlip_sh:\r |
| 1013 | TileFlipSh\r |
| 1014 | b .dsfc_inloop\r |
| 1015 | \r |
| cc68a136 |
1016 | .dsfc_singlec_sh:\r |
| 1017 | cmp r2, #0xe0000000\r |
| 1018 | bcc .dsfc_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
| 1019 | tst r2, #0x10000000\r |
| 1020 | bne .dsfc_sh_sh\r |
| 1021 | TileSingleHi\r |
| 1022 | b .dsfc_inloop\r |
| 1023 | \r |
| 1024 | .dsfc_sh_sh:\r |
| 1025 | TileSingleSh\r |
| 1026 | b .dsfc_inloop\r |
| 1027 | \r |
| 1028 | .pool\r |
| 1029 | \r |
| 1030 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 1031 | \r |
| 1032 | @ + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
| 1033 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
| 1034 | \r |
| e5fa9817 |
1035 | .global DrawSprite @ unsigned int *sprite, int **hc, int sh, int acc_sprites\r |
| cc68a136 |
1036 | \r |
| 1037 | DrawSprite:\r |
| 1038 | stmfd sp!, {r4-r9,r11,lr}\r |
| 1039 | \r |
| e5fa9817 |
1040 | orr r8, r3, r2, lsl #4\r |
| cc68a136 |
1041 | ldr r3, [r0] @ sprite[0]\r |
| 1042 | ldr r7, =Scanline\r |
| 1043 | mov r6, r3, lsr #28\r |
| 1044 | sub r6, r6, #1 @ r6=width-1 (inc later)\r |
| 1045 | mov r5, r3, lsr #24\r |
| 1046 | and r5, r5, #7 @ r5=height\r |
| 1047 | \r |
| 1048 | mov r4, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
| 1049 | \r |
| 1050 | ldr r7, [r7]\r |
| 1051 | ldr r9, [r0, #4]\r |
| 1052 | sub r7, r7, r4, asr #16 @ r7=row=Scanline-sy\r |
| 1053 | \r |
| cc68a136 |
1054 | mov r2, r9, asr #16 @ r2=sx\r |
| e5fa9817 |
1055 | mov r9, r9, lsl #16\r |
| 1056 | mov r9, r9, lsr #16\r |
| 1057 | orr r9, r9, r8, lsl #27 @ r9=code|sh[31]|as[27]\r |
| cc68a136 |
1058 | \r |
| 1059 | tst r9, #0x1000\r |
| 1060 | movne r4, r5, lsl #3\r |
| 1061 | subne r4, r4, #1\r |
| 1062 | subne r7, r4, r7 @ if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
| 1063 | \r |
| 1064 | mov r8, r9, lsl #21\r |
| 1065 | mov r8, r8, lsr #21\r |
| 1066 | add r8, r8, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
| 1067 | \r |
| 1068 | tst r9, #0x0800\r |
| 1069 | mlane r8, r5, r6, r8 @ if (code&0x0800) { tile+=delta*(width-1);\r |
| 1070 | rsbne r5, r5, #0 @ delta=-delta; } // r5=delta now\r |
| 1071 | \r |
| 1072 | mov r8, r8, lsl #4\r |
| 1073 | and r7, r7, #7\r |
| 1074 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
| 1075 | \r |
| 1076 | tst r9, #0x8000\r |
| 1077 | bne .dspr_cache @ if(code&0x8000) // high priority - cache it\r |
| 1078 | \r |
| e5fa9817 |
1079 | .dspr_continue:\r |
| cc68a136 |
1080 | @ cache some stuff to avoid mem access\r |
| ea8c405f |
1081 | .if OVERRIDE_HIGHCOL\r |
| 1082 | ldr r11,=HighCol\r |
| 1083 | mov r12,#0xf\r |
| 1084 | ldr r11,[r11]\r |
| 1085 | .else\r |
| cc68a136 |
1086 | ldr r11,=HighCol\r |
| cc68a136 |
1087 | mov r12,#0xf\r |
| ea8c405f |
1088 | .endif\r |
| 1089 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
| cc68a136 |
1090 | \r |
| 1091 | mov r5, r5, lsl #4 @ delta<<=4; // Delta of address\r |
| 1092 | and r4, r9, #0x6000\r |
| 1093 | orr r9, r9, r4, lsl #16\r |
| e5fa9817 |
1094 | orrs r9, r9, #0x10000000 @ r9=scc1 a??? ... <code> (s=shadow/hilight, cc=pal, a=acc_spr)\r |
| cc68a136 |
1095 | \r |
| cc68a136 |
1096 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
| e5fa9817 |
1097 | orrmi r3, r3, #0x40 @ shadow by default\r |
| cc68a136 |
1098 | \r |
| 1099 | add r6, r6, #1 @ inc now\r |
| 1100 | adds r0, r2, #0 @ mov sx to r0 and set ZV flags\r |
| 1101 | b .dspr_loop_enter\r |
| 1102 | \r |
| 1103 | .dspr_loop:\r |
| 1104 | subs r6, r6, #1 @ width--\r |
| 1105 | ldmeqfd sp!, {r4-r9,r11,pc}@ return\r |
| 1106 | adds r0, r0, #8 @ sx+=8\r |
| 1107 | add r8, r8, r5 @ tile+=delta\r |
| 1108 | \r |
| 1109 | .dspr_loop_enter:\r |
| 1110 | ble .dspr_loop @ sx <= 0\r |
| 1111 | cmp r0, #328\r |
| 1112 | ldmgefd sp!, {r4-r9,r11,pc}@ return\r |
| 1113 | \r |
| 1114 | mov r8, r8, lsl #17\r |
| 1115 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
| 1116 | \r |
| 1117 | ldr r2, [lr, r8, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 1118 | add r1, r11, r0 @ r1=pdest\r |
| 1119 | tst r2, r2\r |
| 1120 | beq .dspr_loop\r |
| 1121 | \r |
| 1122 | cmp r12, r9, lsr #28\r |
| 1123 | beq .dspr_shadow\r |
| 1124 | \r |
| 1125 | cmp r2, r2, ror #4\r |
| 1126 | beq .dspr_SingleColor @ tileline singlecolor \r |
| 1127 | \r |
| 1128 | tst r9, #0x0800\r |
| 7a7c6476 |
1129 | bne .dspr_TileFlip\r |
| cc68a136 |
1130 | \r |
| 1131 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
1132 | @ scratch: r4, r7\r |
| 1133 | .dspr_TileNorm:\r |
| 1134 | TileNorm r12\r |
| 1135 | b .dspr_loop\r |
| 1136 | \r |
| 7a7c6476 |
1137 | .dspr_TileFlip:\r |
| 1138 | TileFlip r12\r |
| 1139 | b .dspr_loop\r |
| 1140 | \r |
| cc68a136 |
1141 | .dspr_SingleColor:\r |
| 1142 | and r4, r2, #0xf\r |
| 1143 | orr r4, r3, r4\r |
| 1144 | orr r4, r4, r4, lsl #8\r |
| 1145 | tst r0, #1 @ not aligned?\r |
| 1146 | strneb r4, [r1], #1\r |
| 1147 | streqh r4, [r1], #2\r |
| 1148 | strh r4, [r1], #2\r |
| 1149 | strh r4, [r1], #2\r |
| 1150 | strh r4, [r1], #2\r |
| 1151 | strneb r4, [r1], #1\r |
| 1152 | b .dspr_loop\r |
| 1153 | \r |
| 1154 | .dspr_shadow:\r |
| 1155 | cmp r2, r2, ror #4\r |
| 1156 | beq .dspr_singlec_sh\r |
| 1157 | \r |
| 1158 | tst r9, #0x0800\r |
| 7a7c6476 |
1159 | bne .dspr_TileFlip_sh\r |
| cc68a136 |
1160 | \r |
| 1161 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| cc68a136 |
1162 | .dspr_TileNorm_sh:\r |
| 1163 | TileNormSh\r |
| 1164 | b .dspr_loop\r |
| 1165 | \r |
| 7a7c6476 |
1166 | .dspr_TileFlip_sh:\r |
| 1167 | TileFlipSh\r |
| 1168 | b .dspr_loop\r |
| 1169 | \r |
| cc68a136 |
1170 | .dspr_singlec_sh:\r |
| 1171 | cmp r2, #0xe0000000\r |
| 1172 | bcc .dspr_SingleColor @ normal tileline\r |
| 1173 | tst r2, #0x10000000\r |
| 1174 | bne .dspr_sh_sh\r |
| 1175 | TileSingleHi\r |
| 1176 | b .dspr_loop\r |
| 1177 | \r |
| 1178 | .dspr_sh_sh:\r |
| 1179 | TileSingleSh\r |
| 1180 | b .dspr_loop\r |
| 1181 | \r |
| 1182 | \r |
| 1183 | .dspr_cache:\r |
| 1184 | @ *(*hc)++ = (tile<<16)|((code&0x0800)<<5)|((sx<<6)&0x0000ffc0)|((code>>9)&0x30)|((sprite[0]>>24)&0xf);\r |
| 1185 | mov r4, r8, lsl #16 @ tile\r |
| 1186 | tst r9, #0x0800\r |
| 1187 | orrne r4, r4, #0x10000 @ code&0x0800\r |
| e5fa9817 |
1188 | mov r0, r2, lsl #22\r |
| 1189 | orr r4, r4, r0, lsr #16 @ (sx<<6)&0x0000ffc0\r |
| 1190 | and r0, r9, #0x6000\r |
| 1191 | orr r4, r4, r0, lsr #9 @ (code>>9)&0x30\r |
| cc68a136 |
1192 | mov r3, r3, lsl #12\r |
| e5fa9817 |
1193 | ldr r0, [r1]\r |
| cc68a136 |
1194 | orr r4, r4, r3, lsr #28 @ (sprite[0]>>24)&0xf\r |
| 1195 | \r |
| e5fa9817 |
1196 | str r4, [r0], #4\r |
| 1197 | str r0, [r1]\r |
| cc68a136 |
1198 | \r |
| e5fa9817 |
1199 | tst r9, #(1<<27)\r |
| 1200 | ldmeqfd sp!, {r4-r9,r11,lr}\r |
| 1201 | bne .dspr_continue @ draw anyway if accurate sprites enabled\r |
| 1202 | bxeq lr\r |
| cc68a136 |
1203 | \r |
| 1204 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 1205 | \r |
| 1206 | .global DrawWindow @ int tstart, int tend, int prio, int sh // int *hcache\r |
| 1207 | \r |
| 1208 | DrawWindow:\r |
| 1209 | stmfd sp!, {r4-r11,lr}\r |
| 1210 | \r |
| 1211 | ldr r11, =(Pico+0x22228) @ Pico.video\r |
| 1212 | ldr r10, =Scanline\r |
| 1213 | ldrb r12, [r11, #3] @ pvid->reg[3]\r |
| 1214 | \r |
| 1215 | ldr r10, [r10]\r |
| 1216 | ldr r4, [r11, #12]\r |
| 1217 | mov r5, r10, lsr #3\r |
| 1218 | and r10, r10, #7\r |
| 1219 | mov r10, r10, lsl #1 @ r10=ty\r |
| 1220 | \r |
| 1221 | mov r12, r12, lsl #10\r |
| 1222 | \r |
| 1223 | tst r4, #1 @ 40 cell mode?\r |
| 1224 | andne r12, r12, #0xf000 @ 0x3c<<10\r |
| 1225 | andeq r12, r12, #0xf800\r |
| 1226 | addne r12, r12, r5, lsl #7\r |
| 1227 | addeq r12, r12, r5, lsl #6 @ nametab\r |
| 1228 | add r12, r12, r0, lsl #2 @ +starttile\r |
| 1229 | \r |
| 1230 | ldr r6, =rendstatus\r |
| 1231 | ldr lr, =(Pico+0x10000) @ lr=Pico.vram\r |
| 1232 | ldrb r6, [r6]\r |
| 1233 | \r |
| 1234 | @ fetch the first code now\r |
| 1235 | ldrh r7, [lr, r12]\r |
| 1236 | \r |
| 1237 | ands r6, r6, #2 @ we care about bit 1 only\r |
| 1238 | orr r6, r6, r2\r |
| 1239 | bne .dw_no_sameprio\r |
| 1240 | \r |
| 1241 | cmp r2, r7, lsr #15\r |
| 1242 | ldmnefd sp!, {r4-r11,pc} @ assume that whole window uses same priority\r |
| 1243 | \r |
| 1244 | .dw_no_sameprio:\r |
| 1245 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
| 1246 | \r |
| 1247 | sub r8, r1, r0\r |
| cc68a136 |
1248 | \r |
| 1249 | @ cache some stuff to avoid mem access\r |
| ea8c405f |
1250 | .if OVERRIDE_HIGHCOL\r |
| 1251 | ldr r11,=HighCol\r |
| 1252 | mov r8, r8, lsl #1 @ cells\r |
| 1253 | ldr r11,[r11]\r |
| 1254 | mvn r9, #0 @ r9=prevcode=-1\r |
| 1255 | add r11,r11,#8\r |
| 1256 | .else\r |
| cc68a136 |
1257 | ldr r11,=(HighCol+8)\r |
| ea8c405f |
1258 | mov r8, r8, lsl #1 @ cells\r |
| 1259 | mvn r9, #0 @ r9=prevcode=-1\r |
| 1260 | .endif\r |
| cc68a136 |
1261 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
| 1262 | mov r0, #0xf\r |
| 1263 | b .dwloop_enter\r |
| 1264 | \r |
| 1265 | @ r4,r5 & r7 are scratch in this loop\r |
| 1266 | .dwloop:\r |
| 1267 | add r1, r1, #8\r |
| 1268 | .dwloop_nor1:\r |
| 1269 | add r12, r12, #2 @ halfwords\r |
| 1270 | ldrh r7, [lr, r12] @ r7=code (int, but from unsigned, no sign extend)\r |
| 1271 | subs r8, r8, #1\r |
| 1272 | beq .dwloop_end @ done\r |
| 1273 | \r |
| 1274 | eor r5, r6, r7, lsr #15\r |
| 1275 | tst r5, #1\r |
| 1276 | orrne r6, r6, #2 @ wrong pri\r |
| 1277 | bne .dwloop\r |
| 1278 | \r |
| 1279 | cmp r7, r9\r |
| 1280 | beq .dw_samecode @ we know stuff about this tile already\r |
| 1281 | \r |
| 1282 | .dwloop_enter:\r |
| 1283 | mov r9, r7 @ remember code\r |
| 1284 | \r |
| 1285 | movs r2, r9, lsl #20 @ if (code&0x1000)\r |
| 1286 | mov r2, r2, lsl #1\r |
| 1287 | add r2, r10, r2, lsr #17 @ r2=addr=(code&0x7ff)<<4; addr+=ty\r |
| 1288 | eorcs r2, r2, #0x0e @ if (code&0x1000) addr^=0xe;\r |
| 1289 | \r |
| 1290 | and r3, r9, #0x6000\r |
| 1291 | mov r3, r3, lsr #9 @ r3=pal=((code&0x6000)>>9);\r |
| 1292 | \r |
| 1293 | ldr r2, [lr, r2, lsl #1] @ pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels\r |
| 1294 | \r |
| 1295 | .dw_samecode:\r |
| 1296 | tst r6, #0x100\r |
| 1297 | bne .dw_shadow\r |
| 1298 | .dw_shadow_done:\r |
| 1299 | tst r2, r2\r |
| 1300 | beq .dwloop @ tileline blank\r |
| 1301 | \r |
| 1302 | cmp r2, r2, ror #4\r |
| 1303 | beq .dw_SingleColor @ tileline singlecolor \r |
| 1304 | \r |
| 1305 | tst r9, #0x0800\r |
| 7a7c6476 |
1306 | bne .dw_TileFlip\r |
| cc68a136 |
1307 | \r |
| 1308 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
| cc68a136 |
1309 | .dw_TileNorm:\r |
| 1310 | TileNorm r0\r |
| 1311 | b .dwloop\r |
| 1312 | \r |
| 7a7c6476 |
1313 | .dw_TileFlip:\r |
| 1314 | TileFlip r0\r |
| 1315 | b .dwloop\r |
| 1316 | \r |
| cc68a136 |
1317 | .dw_SingleColor:\r |
| 1318 | and r4, r0, r2 @ #0x0000000f\r |
| 1319 | orr r4, r3, r4\r |
| 1320 | orr r4, r4, r4, lsl #8\r |
| 1321 | orr r4, r4, r4, lsl #16\r |
| 1322 | mov r5, r4\r |
| 1323 | stmia r1!, {r4,r5}\r |
| 1324 | b .dwloop_nor1 @ we incremeted r1 ourselves\r |
| 1325 | \r |
| 1326 | .dw_shadow:\r |
| 1327 | tst r6, #1 @ hi pri?\r |
| 1328 | orreq r3, r3, #0x40\r |
| 1329 | beq .dw_shadow_done\r |
| 1330 | ldr r4, [r1]\r |
| 1331 | tst r4, #0x00000080\r |
| 1332 | biceq r4, r4, #0x000000c0\r |
| 1333 | tst r4, #0x00008000\r |
| 1334 | biceq r4, r4, #0x0000c000\r |
| 1335 | tst r4, #0x00800000\r |
| 1336 | biceq r4, r4, #0x00c00000\r |
| 1337 | tst r4, #0x80000000\r |
| 1338 | biceq r4, r4, #0xc0000000\r |
| 1339 | str r4, [r1]\r |
| 1340 | ldr r4, [r1,#4]\r |
| 1341 | tst r4, #0x00000080\r |
| 1342 | biceq r4, r4, #0x000000c0\r |
| 1343 | tst r4, #0x00008000\r |
| 1344 | biceq r4, r4, #0x0000c000\r |
| 1345 | tst r4, #0x00800000\r |
| 1346 | biceq r4, r4, #0x00c00000\r |
| 1347 | tst r4, #0x80000000\r |
| 1348 | biceq r4, r4, #0xc0000000\r |
| 1349 | str r4, [r1,#4]\r |
| 1350 | b .dw_shadow_done\r |
| 1351 | \r |
| 1352 | .dwloop_end:\r |
| 1353 | ldr r0, =rendstatus\r |
| 1354 | ldr r1, [r0]\r |
| 1355 | and r6, r6, #2\r |
| 1356 | orr r1, r1, r6\r |
| 1357 | str r1, [r0]\r |
| 1358 | \r |
| 1359 | ldmfd sp!, {r4-r11,r12}\r |
| 1360 | bx r12\r |
| 1361 | \r |
| 1362 | \r |
| 1363 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 1364 | \r |
| 1365 | \r |
| 1366 | @ hilights 2 pixels in RGB444/BGR444 format\r |
| 1367 | .macro TileDoShHi2Pixels444 reg\r |
| 1368 | mov \reg, \reg, ror #12\r |
| 1369 | adds \reg, \reg, #0x40000000\r |
| 1370 | orrcs \reg, \reg, #0xf0000000\r |
| 1371 | mov \reg, \reg, ror #28\r |
| 1372 | adds \reg, \reg, #0x40000000\r |
| 1373 | orrcs \reg, \reg, #0xf0000000\r |
| 1374 | mov \reg, \reg, ror #28\r |
| 1375 | adds \reg, \reg, #0x40000000\r |
| 1376 | orrcs \reg, \reg, #0xf0000000\r |
| 1377 | mov \reg, \reg, ror #24\r |
| 1378 | adds \reg, \reg, #0x40000000\r |
| 1379 | orrcs \reg, \reg, #0xf0000000\r |
| 1380 | mov \reg, \reg, ror #28\r |
| 1381 | adds \reg, \reg, #0x40000000\r |
| 1382 | orrcs \reg, \reg, #0xf0000000\r |
| 1383 | mov \reg, \reg, ror #28\r |
| 1384 | adds \reg, \reg, #0x40000000\r |
| 1385 | orrcs \reg, \reg, #0xf0000000\r |
| 1386 | mov \reg, \reg, ror #12\r |
| 1387 | .endm\r |
| 1388 | \r |
| 1389 | \r |
| 1390 | .global FinalizeLineBGR444 @ int sh\r |
| 1391 | \r |
| 1392 | FinalizeLineBGR444:\r |
| 1393 | stmfd sp!, {r4-r6,lr}\r |
| 1394 | mov r6, r0\r |
| 1395 | ldr lr, =(Pico+0x22228) @ Pico.video\r |
| 1396 | ldr r0, =DrawLineDest\r |
| 1397 | ldrb r12, [lr, #12]\r |
| 1398 | ldr r0, [r0]\r |
| 1399 | sub r3, lr, #0x128 @ r3=Pico.cram\r |
| 1400 | \r |
| 1401 | tst r12, #1\r |
| 1402 | movne r2, #320/4 @ len\r |
| 1403 | bne .fl_no32colBGR444\r |
| 1404 | ldr r4, =PicoOpt\r |
| 1405 | mov r2, #256/4\r |
| 1406 | ldr r4, [r4]\r |
| 1407 | tst r4, #0x100\r |
| 1408 | addeq r0, r0, #32*2\r |
| 1409 | \r |
| 1410 | .fl_no32colBGR444:\r |
| 1411 | tst r6, r6\r |
| 1412 | beq .fl_noshBGR444\r |
| 1413 | \r |
| 1414 | ldr r4, =HighPal\r |
| 1415 | \r |
| 1416 | ldrb r12, [lr, #-0x1a] @ 0x2220e ~ dirtyPal\r |
| 1417 | tst r12, r12\r |
| 1418 | moveq r3, r4\r |
| 1419 | beq .fl_noshBGR444\r |
| 1420 | mov r12, #0\r |
| 1421 | strb r12, [lr, #-0x1a]\r |
| 1422 | \r |
| 1423 | mov lr, #0x40/8\r |
| 1424 | @ copy pal:\r |
| 1425 | .fl_loopcpBGR444:\r |
| 1426 | ldmia r3!, {r1,r5,r6,r12}\r |
| 1427 | subs lr, lr, #1\r |
| 1428 | stmia r4!, {r1,r5,r6,r12}\r |
| 1429 | bne .fl_loopcpBGR444\r |
| 1430 | \r |
| 1431 | @ shadowed pixels:\r |
| 1432 | mov r12, #0x0077\r |
| 1433 | orr r12,r12,#0x0700\r |
| 1434 | orr r12,r12,r12,lsl #16\r |
| 1435 | sub r3, r3, #0x40*2\r |
| 1436 | add r5, r4, #0x80*2\r |
| 1437 | mov lr, #0x40/4\r |
| 1438 | .fl_loopcpBGR444_sh:\r |
| 1439 | ldmia r3!, {r1,r6}\r |
| 1440 | subs lr, lr, #1\r |
| 1441 | and r1, r12, r1, lsr #1\r |
| 1442 | and r6, r12, r6, lsr #1\r |
| 1443 | stmia r4!, {r1,r6}\r |
| 1444 | stmia r5!, {r1,r6}\r |
| 1445 | bne .fl_loopcpBGR444_sh\r |
| 1446 | \r |
| 1447 | @ hilighted pixels:\r |
| 1448 | sub r3, r3, #0x40*2\r |
| 1449 | mov lr, #0x40/2\r |
| 1450 | .fl_loopcpBGR444_hi:\r |
| 1451 | ldr r1, [r3], #4\r |
| 1452 | TileDoShHi2Pixels444 r1\r |
| 1453 | str r1, [r4], #4\r |
| 1454 | subs lr, lr, #1\r |
| 1455 | bne .fl_loopcpBGR444_hi\r |
| 1456 | \r |
| 1457 | sub r3, r4, #0x40*3*2\r |
| e5fa9817 |
1458 | mov r6, #1\r |
| cc68a136 |
1459 | \r |
| 1460 | \r |
| 1461 | .fl_noshBGR444:\r |
| e5fa9817 |
1462 | ldr r12,=rendstatus\r |
| 1463 | eors r6, r6, #1 @ sh is 0\r |
| 1464 | ldr r12,[r12]\r |
| 1465 | mov lr, #0xff\r |
| 1466 | tstne r12,#(1<<2) @ and PDRAW_ACC_SPRITES\r |
| 1467 | \r |
| ea8c405f |
1468 | .if OVERRIDE_HIGHCOL\r |
| 1469 | ldr r1, =HighCol\r |
| e5fa9817 |
1470 | movne lr, #0x3f\r |
| ea8c405f |
1471 | ldr r1, [r1]\r |
| 1472 | mov lr, lr, lsl #1\r |
| 1473 | add r1, r1, #8\r |
| 1474 | .else\r |
| cc68a136 |
1475 | ldr r1, =(HighCol+8)\r |
| e5fa9817 |
1476 | movne lr, #0x3f\r |
| cc68a136 |
1477 | mov lr, lr, lsl #1\r |
| ea8c405f |
1478 | .endif\r |
| cc68a136 |
1479 | \r |
| 1480 | .fl_loopBGR444:\r |
| cc68a136 |
1481 | ldr r12, [r1], #4\r |
| 1482 | subs r2, r2, #1\r |
| 1483 | \r |
| 1484 | and r4, lr, r12, lsl #1\r |
| 1485 | ldrh r4, [r3, r4]\r |
| 1486 | and r5, lr, r12, lsr #7\r |
| 1487 | ldrh r5, [r3, r5]\r |
| 1488 | and r6, lr, r12, lsr #15\r |
| 1489 | ldrh r6, [r3, r6]\r |
| e5fa9817 |
1490 | and r12,lr, r12, lsr #23\r |
| 1491 | ldrh r12,[r3, r12] @ 1c.i.\r |
| cc68a136 |
1492 | orr r4, r4, r5, lsl #16\r |
| e5fa9817 |
1493 | orr r5, r6, r12,lsl #16\r |
| cc68a136 |
1494 | \r |
| 1495 | stmia r0!, {r4,r5}\r |
| 1496 | bne .fl_loopBGR444\r |
| 1497 | \r |
| 1498 | \r |
| 1499 | ldmfd sp!, {r4-r6,lr}\r |
| 1500 | bx lr\r |
| 1501 | \r |
| 1502 | \r |
| 1503 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 1504 | \r |
| 1505 | \r |
| 1506 | @ hilights 2 pixels in RGB555/BGR555 format\r |
| 1507 | .macro TileDoShHi2Pixels555 reg\r |
| 1508 | adds \reg, \reg, #0x40000000\r |
| 1509 | orrcs \reg, \reg, #0xf0000000\r |
| 1510 | mov \reg, \reg, ror #27\r |
| 1511 | adds \reg, \reg, #0x40000000\r |
| 1512 | orrcs \reg, \reg, #0xf0000000\r |
| 1513 | mov \reg, \reg, ror #26\r |
| 1514 | adds \reg, \reg, #0x40000000\r |
| 1515 | orrcs \reg, \reg, #0xf0000000\r |
| 1516 | mov \reg, \reg, ror #27\r |
| 1517 | adds \reg, \reg, #0x40000000\r |
| 1518 | orrcs \reg, \reg, #0xf0000000\r |
| 1519 | mov \reg, \reg, ror #27\r |
| 1520 | adds \reg, \reg, #0x40000000\r |
| 1521 | orrcs \reg, \reg, #0xf0000000\r |
| 1522 | mov \reg, \reg, ror #26\r |
| 1523 | adds \reg, \reg, #0x40000000\r |
| 1524 | orrcs \reg, \reg, #0xf0000000\r |
| 1525 | mov \reg, \reg, ror #27\r |
| 1526 | .endm\r |
| 1527 | \r |
| 1528 | \r |
| 1529 | @ Convert 0000bbb0 ggg0rrr0\r |
| 1530 | @ to rrrrrggg gggbbbbb\r |
| 1531 | \r |
| 1532 | @ r2,r3,r9 - scratch, lr = 0x001c001c, r8 = 0x00030003\r |
| 1533 | .macro convRGB565 reg\r |
| 1534 | and r2, lr, \reg,lsl #1\r |
| 1535 | and r9, r8, \reg,lsr #2\r |
| 1536 | orr r2, r2, r9 @ r2=red\r |
| 1537 | and r3, lr, \reg,lsr #7\r |
| 1538 | and r9, r8, \reg,lsr #10\r |
| 1539 | orr r3, r3, r9 @ r3=blue\r |
| 1540 | and \reg, \reg, lr, lsl #3\r |
| 1541 | orr \reg, \reg, \reg,lsl #3 @ green\r |
| 1542 | orr \reg, \reg, r2, lsl #11 @ add red back\r |
| 1543 | orr \reg, \reg, r3 @ add blue back\r |
| 1544 | .endm\r |
| 1545 | \r |
| ea8c405f |
1546 | .global vidConvCpyRGB565\r |
| 1547 | \r |
| cc68a136 |
1548 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
| 1549 | stmfd sp!, {r4-r9,lr}\r |
| 1550 | \r |
| 2ec14aec |
1551 | mov r12, r2, lsr #3 @ repeats\r |
| cc68a136 |
1552 | mov lr, #0x001c0000\r |
| 1553 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
| 1554 | mov r8, #0x00030000\r |
| 2ec14aec |
1555 | orr r8, r8, #0x003\r |
| cc68a136 |
1556 | \r |
| 1557 | .loopRGB565:\r |
| 1558 | ldmia r1!, {r4-r7}\r |
| 1559 | subs r12, r12, #1\r |
| 1560 | convRGB565 r4\r |
| 1561 | str r4, [r0], #4\r |
| 1562 | convRGB565 r5\r |
| 1563 | str r5, [r0], #4\r |
| 1564 | convRGB565 r6\r |
| 1565 | str r6, [r0], #4\r |
| 1566 | convRGB565 r7\r |
| 1567 | str r7, [r0], #4\r |
| 1568 | \r |
| 1569 | bgt .loopRGB565\r |
| 1570 | \r |
| 1571 | ldmfd sp!, {r4-r9,lr}\r |
| 1572 | bx lr\r |
| 1573 | \r |
| 1574 | \r |
| 1575 | \r |
| 1576 | .global FinalizeLineRGB555 @ int sh\r |
| 1577 | \r |
| 1578 | FinalizeLineRGB555:\r |
| 1579 | stmfd sp!, {r4-r8,lr}\r |
| 3d48f143 |
1580 | ldr r8, =(Pico+0x22228) @ Pico.video\r |
| cc68a136 |
1581 | ldr r4, =HighPal\r |
| 1582 | \r |
| 3d48f143 |
1583 | ldrb r7, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
| cc68a136 |
1584 | mov r6, r0\r |
| 1585 | mov r1, #0\r |
| 1586 | tst r7, r7\r |
| 1587 | beq .fl_noconvRGB555\r |
| 3d48f143 |
1588 | strb r1, [r8, #-0x1a]\r |
| 1589 | sub r1, r8, #0x128 @ r1=Pico.cram\r |
| cc68a136 |
1590 | mov r0, r4\r |
| 1591 | mov r2, #0x40\r |
| 1592 | bl vidConvCpyRGB565\r |
| 1593 | \r |
| 1594 | .fl_noconvRGB555:\r |
| cc68a136 |
1595 | mov r3, r4\r |
| 1596 | tst r6, r6\r |
| 1597 | beq .fl_noshRGB555\r |
| 1598 | tst r7, r7\r |
| 1599 | beq .fl_noshRGB555\r |
| 1600 | \r |
| 1601 | @ shadowed pixels:\r |
| 1602 | mov r12, #0x008e\r |
| 1603 | orr r12,r12,#0x7300\r |
| 1604 | orr r12,r12,r12,lsl #16\r |
| 1605 | add r4, r3, #0x40*2\r |
| 1606 | add r5, r3, #0xc0*2\r |
| 1607 | mov lr, #0x40/4\r |
| 1608 | .fl_loopcpRGB555_sh:\r |
| 1609 | ldmia r3!, {r1,r6}\r |
| 1610 | subs lr, lr, #1\r |
| 1611 | and r1, r12, r1, lsr #1\r |
| 1612 | and r6, r12, r6, lsr #1\r |
| 1613 | stmia r4!, {r1,r6}\r |
| 1614 | stmia r5!, {r1,r6}\r |
| 1615 | bne .fl_loopcpRGB555_sh\r |
| 1616 | \r |
| 1617 | @ hilighted pixels:\r |
| 1618 | sub r3, r3, #0x40*2\r |
| 1619 | mov lr, #0x40/2\r |
| 1620 | .fl_loopcpRGB555_hi:\r |
| 1621 | ldr r1, [r3], #4\r |
| 1622 | TileDoShHi2Pixels555 r1\r |
| 1623 | str r1, [r4], #4\r |
| 1624 | subs lr, lr, #1\r |
| 1625 | bne .fl_loopcpRGB555_hi\r |
| 1626 | \r |
| 1627 | sub r3, r3, #0x40*2\r |
| e5fa9817 |
1628 | mov r6, #1\r |
| cc68a136 |
1629 | \r |
| cc68a136 |
1630 | .fl_noshRGB555:\r |
| e5fa9817 |
1631 | ldr r12,=rendstatus\r |
| 1632 | eors r6, r6, #1 @ sh is 0\r |
| 1633 | ldr r12,[r12]\r |
| 1634 | mov lr, #0xff\r |
| 1635 | tstne r12,#(1<<2) @ and PDRAW_ACC_SPRITES\r |
| 1636 | movne lr, #0x3f\r |
| 1637 | \r |
| ea8c405f |
1638 | .if OVERRIDE_HIGHCOL\r |
| 1639 | ldr r1, =HighCol\r |
| 1640 | ldr r0, =DrawLineDest\r |
| 1641 | ldr r1, [r1]\r |
| 1642 | ldr r0, [r0]\r |
| 1643 | add r1, r1, #8\r |
| 1644 | .else\r |
| 3d48f143 |
1645 | ldr r0, =DrawLineDest\r |
| cc68a136 |
1646 | ldr r1, =(HighCol+8)\r |
| 3d48f143 |
1647 | ldr r0, [r0]\r |
| ea8c405f |
1648 | .endif\r |
| 3d48f143 |
1649 | \r |
| 1650 | ldrb r12, [r8, #12]\r |
| cc68a136 |
1651 | mov lr, lr, lsl #1\r |
| 1652 | \r |
| 3d48f143 |
1653 | tst r12, #1\r |
| 1654 | movne r2, #320/8 @ len\r |
| 1655 | bne .fl_no32colRGB555\r |
| 1656 | ldr r4, =PicoOpt\r |
| 1657 | mov r2, #256/8\r |
| 1658 | ldr r4, [r4]\r |
| 1659 | tst r4, #0x4000\r |
| 1660 | bne .fl_32scale_RGB555\r |
| 1661 | tst r4, #0x0100\r |
| 1662 | addeq r0, r0, #32*2\r |
| 1663 | \r |
| 1664 | .fl_no32colRGB555:\r |
| cc68a136 |
1665 | \r |
| 499a0be3 |
1666 | .if UNALIGNED_DRAWLINEDEST\r |
| 1667 | @ this is basically for Gizmondo, which has unaligned odd lines in the framebuffer\r |
| 1668 | tst r0, #2\r |
| 1669 | bne .fl_RGB555u\r |
| 1670 | .endif\r |
| 1671 | \r |
| 1672 | .fl_loopRGB555:\r |
| cc68a136 |
1673 | ldr r12, [r1], #4\r |
| 1674 | ldr r7, [r1], #4\r |
| 1675 | \r |
| 1676 | and r4, lr, r12, lsl #1\r |
| 1677 | ldrh r4, [r3, r4]\r |
| 1678 | and r5, lr, r12, lsr #7\r |
| 1679 | ldrh r5, [r3, r5]\r |
| 1680 | and r6, lr, r12, lsr #15\r |
| 1681 | ldrh r6, [r3, r6]\r |
| 1682 | orr r4, r4, r5, lsl #16\r |
| 1683 | \r |
| 1684 | and r5, lr, r12, lsr #23\r |
| 1685 | ldrh r5, [r3, r5]\r |
| 1686 | and r8, lr, r7, lsl #1\r |
| 1687 | ldrh r8, [r3, r8]\r |
| 1688 | orr r5, r6, r5, lsl #16\r |
| 1689 | \r |
| 1690 | and r6, lr, r7, lsr #7\r |
| 1691 | ldrh r6, [r3, r6]\r |
| 1692 | and r12,lr, r7, lsr #15\r |
| 1693 | ldrh r12,[r3, r12]\r |
| 499a0be3 |
1694 | and r7, lr, r7, lsr #23\r |
| 1695 | ldrh r7, [r3, r7]\r |
| cc68a136 |
1696 | orr r8, r8, r6, lsl #16\r |
| 1697 | \r |
| cc68a136 |
1698 | subs r2, r2, #1\r |
| 499a0be3 |
1699 | orr r12,r12, r7, lsl #16\r |
| cc68a136 |
1700 | \r |
| 1701 | stmia r0!, {r4,r5,r8,r12}\r |
| 1702 | bne .fl_loopRGB555\r |
| 1703 | \r |
| 3d48f143 |
1704 | ldmfd sp!, {r4-r8,lr}\r |
| 1705 | bx lr\r |
| 1706 | \r |
| 1707 | \r |
| 1708 | .fl_32scale_RGB555:\r |
| 1709 | stmfd sp!, {r9,r10}\r |
| 1710 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
| 1711 | orr r9, r9, #0x00e7\r |
| 1712 | \r |
| 499a0be3 |
1713 | .if UNALIGNED_DRAWLINEDEST\r |
| 1714 | tst r0, #2\r |
| 1715 | bne .fl_32scale_RGB555u\r |
| 1716 | .endif\r |
| 1717 | \r |
| 3d48f143 |
1718 | .fl_loop32scale_RGB555:\r |
| 1719 | ldr r12, [r1], #4\r |
| 1720 | ldr r7, [r1], #4\r |
| cc68a136 |
1721 | \r |
| 3d48f143 |
1722 | and r4, lr, r12,lsl #1\r |
| 1723 | ldrh r4, [r3, r4]\r |
| 1724 | and r5, lr, r12,lsr #7\r |
| 1725 | ldrh r5, [r3, r5]\r |
| 1726 | and r4, r4, r9, lsl #2\r |
| 1727 | orr r4, r4, r4, lsl #14 @ r4[31:16] = 1/4 pix_s 0\r |
| 1728 | and r5, r5, r9, lsl #2\r |
| 1729 | sub r6, r5, r5, lsr #2 @ r6 = 3/4 pix_s 1\r |
| 1730 | add r4, r4, r6, lsl #16 @ pix_d 0, 1\r |
| 1731 | and r6, lr, r12,lsr #15\r |
| 1732 | ldrh r6, [r3, r6]\r |
| 1733 | and r12,lr, r12,lsr #23\r |
| 1734 | ldrh r12,[r3, r12]\r |
| 1735 | and r6, r6, r9, lsl #2\r |
| 1736 | add r5, r5, r6\r |
| 1737 | mov r5, r5, lsr #1\r |
| 1738 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
| 1739 | orr r5, r5, r6, lsl #16\r |
| 1740 | \r |
| 1741 | and r6, lr, r7, lsl #1\r |
| 1742 | ldrh r6, [r3, r6]\r |
| 1743 | and r12,r12,r9, lsl #2\r |
| 1744 | add r5, r5, r12,lsl #14 @ pix_d 2, 3\r |
| 1745 | and r6, r6, r9, lsl #2\r |
| 1746 | orr r6, r12,r6, lsl #16 @ pix_d 4, 5\r |
| 1747 | \r |
| 1748 | and r12,lr, r7, lsr #7\r |
| 1749 | ldrh r12,[r3, r12]\r |
| 1750 | and r10,lr, r7, lsr #15\r |
| 1751 | ldrh r10,[r3, r10]\r |
| 1752 | and r12,r12,r9, lsl #2\r |
| 1753 | sub r8, r12,r12,lsr #2 @ r8 = 3/4 pix_s 1\r |
| 1754 | add r8, r8, r6, lsr #18\r |
| 1755 | and r7, lr, r7, lsr #23\r |
| 1756 | ldrh r7, [r3, r7]\r |
| 1757 | and r10,r10,r9, lsl #2\r |
| 1758 | orr r8, r8, r10,lsl #15\r |
| 1759 | add r8, r8, r12,lsl #15 @ pix_d 6, 7\r |
| 1760 | sub r10,r10,r10,lsr #2 @ r10= 3/4 pix_s 2\r |
| 1761 | and r7, r7, r9, lsl #2\r |
| 1762 | add r10,r10,r7, lsr #2 @ += 1/4 pix_s 3\r |
| 1763 | orr r10,r10,r7, lsl #16 @ pix_d 8, 9\r |
| 1764 | \r |
| 1765 | subs r2, r2, #1\r |
| 1766 | \r |
| 1767 | stmia r0!, {r4,r5,r6,r8,r10}\r |
| 1768 | bne .fl_loop32scale_RGB555\r |
| 1769 | \r |
| 1770 | ldmfd sp!, {r9,r10}\r |
| cc68a136 |
1771 | ldmfd sp!, {r4-r8,lr}\r |
| 3d48f143 |
1772 | bx lr\r |
| 1773 | \r |
| 499a0be3 |
1774 | .if UNALIGNED_DRAWLINEDEST\r |
| 1775 | @ unaligned versions of loops\r |
| 9839d126 |
1776 | @ warning: starts drawing 2bytes before dst\r |
| 499a0be3 |
1777 | \r |
| 1778 | .fl_RGB555u:\r |
| 9839d126 |
1779 | sub r0, r0, #2 @ initial adjustment\r |
| 1780 | mov r8, #0\r |
| 499a0be3 |
1781 | \r |
| 1782 | .fl_loopRGB555u:\r |
| 1783 | ldr r12, [r1], #4\r |
| 1784 | ldr r7, [r1], #4\r |
| 1785 | \r |
| 9839d126 |
1786 | and r6, lr, r12,lsl #1\r |
| 1787 | ldrh r6, [r3, r6]\r |
| 1788 | and r5, lr, r12,lsr #7\r |
| 499a0be3 |
1789 | ldrh r5, [r3, r5]\r |
| 9839d126 |
1790 | orr r4, r8, r6, lsl #16\r |
| 499a0be3 |
1791 | \r |
| 9839d126 |
1792 | and r6, lr, r12,lsr #15\r |
| 499a0be3 |
1793 | ldrh r6, [r3, r6]\r |
| 9839d126 |
1794 | and r8, lr, r12,lsr #23\r |
| 499a0be3 |
1795 | ldrh r8, [r3, r8]\r |
| 9839d126 |
1796 | orr r5, r5, r6, lsl #16\r |
| 499a0be3 |
1797 | \r |
| 9839d126 |
1798 | and r6, lr, r7, lsl #1\r |
| 499a0be3 |
1799 | ldrh r6, [r3, r6]\r |
| 9839d126 |
1800 | and r12,lr, r7, lsr #7\r |
| 499a0be3 |
1801 | ldrh r12,[r3, r12]\r |
| 9839d126 |
1802 | orr r6, r8, r6, lsl #16\r |
| 1803 | \r |
| 1804 | and r8, lr, r7, lsr #15\r |
| 499a0be3 |
1805 | ldrh r8, [r3, r8]\r |
| 9839d126 |
1806 | and r7, lr, r7, lsr #23\r |
| 499a0be3 |
1807 | \r |
| 1808 | subs r2, r2, #1\r |
| 9839d126 |
1809 | orr r12,r12,r8, lsl #16\r |
| 1810 | ldrh r8, [r3, r7]\r |
| 1811 | \r |
| 1812 | stmia r0!, {r4,r5,r6,r12}\r |
| 499a0be3 |
1813 | bne .fl_loopRGB555u\r |
| 1814 | \r |
| 1815 | strh r8, [r0], #2\r |
| 1816 | \r |
| 1817 | ldmfd sp!, {r4-r8,lr}\r |
| 1818 | bx lr\r |
| 1819 | \r |
| 1820 | \r |
| 1821 | .fl_32scale_RGB555u:\r |
| 9839d126 |
1822 | sub r0, r0, #2 @ initial adjustment\r |
| 1823 | mov r4, #0\r |
| 499a0be3 |
1824 | \r |
| 1825 | @ r9 f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
| 1826 | .fl_loop32scale_RGB555u:\r |
| 1827 | ldr r12, [r1], #4\r |
| 1828 | ldr r7, [r1], #4\r |
| 1829 | \r |
| 9839d126 |
1830 | and r6, lr, r12,lsl #1\r |
| 1831 | ldrh r6, [r3, r6]\r |
| 499a0be3 |
1832 | and r5, lr, r12,lsr #7\r |
| 1833 | ldrh r5, [r3, r5]\r |
| 9839d126 |
1834 | and r6, r6, r9, lsl #2\r |
| 1835 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
| 499a0be3 |
1836 | \r |
| 1837 | and r5, r5, r9, lsl #2\r |
| 9839d126 |
1838 | sub r8, r5, r5, lsr #2 @ r8 = 3/4 pix_s 1\r |
| 1839 | add r6, r8, r6, lsr #2 @ r6 = (1/4 pix_s 0) + (3/4 pix_s 1)\r |
| 1840 | orr r5, r6, r5, lsl #15\r |
| 499a0be3 |
1841 | \r |
| 1842 | and r6, lr, r12,lsr #15\r |
| 1843 | ldrh r6, [r3, r6]\r |
| 1844 | and r12,lr, r12,lsr #23\r |
| 1845 | ldrh r12,[r3, r12]\r |
| 1846 | and r6, r6, r9, lsl #2\r |
| 9839d126 |
1847 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
| 499a0be3 |
1848 | \r |
| 9839d126 |
1849 | and r8, lr, r7, lsl #1\r |
| 1850 | ldrh r8, [r3, r8]\r |
| 1851 | and r10,lr, r7, lsr #7\r |
| 1852 | ldrh r10,[r3, r10]\r |
| 499a0be3 |
1853 | and r12,r12,r9, lsl #2\r |
| 9839d126 |
1854 | sub r6, r6, r6, lsr #2 @ r6 = 3/4 pix_s 2\r |
| 1855 | add r6, r6, r12,lsr #2\r |
| 1856 | orr r6, r6, r12,lsl #16 @ r6 = pix_d 3, 4\r |
| 499a0be3 |
1857 | \r |
| 9839d126 |
1858 | and r8, r8, r9, lsl #2\r |
| 1859 | and r10,r10,r9, lsl #2\r |
| 1860 | sub r12,r10,r10,lsr #2 @ r12 = 3/4 pix_s 5\r |
| 1861 | orr r8, r8, r8, lsl #14\r |
| 1862 | add r8, r8, r12,lsl #16 @ r8 = pix_d 5, 6\r |
| 1863 | and r12,lr, r7, lsr #15\r |
| 499a0be3 |
1864 | ldrh r12,[r3, r12]\r |
| 499a0be3 |
1865 | and r7, lr, r7, lsr #23\r |
| 1866 | ldrh r7, [r3, r7]\r |
| 9839d126 |
1867 | and r12,r12,r9, lsl #2\r |
| 1868 | add r10,r10,r12\r |
| 1869 | mov r10,r10, lsr #1\r |
| 1870 | sub r12,r12,r12,lsr #2 @ r12 = 3/4 pix_s 6\r |
| 1871 | orr r10,r10,r12,lsl #16\r |
| 499a0be3 |
1872 | and r7, r7, r9, lsl #2\r |
| 9839d126 |
1873 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
| 499a0be3 |
1874 | \r |
| 1875 | subs r2, r2, #1\r |
| 1876 | \r |
| 1877 | stmia r0!, {r4,r5,r6,r8,r10}\r |
| 9839d126 |
1878 | mov r4, r7\r |
| 499a0be3 |
1879 | bne .fl_loop32scale_RGB555u\r |
| 1880 | \r |
| 9839d126 |
1881 | strh r4, [r0], #2\r |
| 1882 | \r |
| 499a0be3 |
1883 | ldmfd sp!, {r9,r10}\r |
| 1884 | ldmfd sp!, {r4-r8,lr}\r |
| 1885 | bx lr\r |
| 1886 | \r |
| 1887 | .endif @ UNALIGNED_DRAWLINEDEST\r |
| 1888 | \r |
| cc68a136 |
1889 | \r |
| 1890 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| 1891 | \r |
| 1892 | @ utility\r |
| 1893 | .global blockcpy @ void *dst, void *src, size_t n\r |
| 1894 | \r |
| 1895 | blockcpy:\r |
| 1896 | stmfd sp!, {r4,r5}\r |
| 1897 | mov r2, r2, lsr #4\r |
| 1898 | blockcpy_loop:\r |
| 1899 | ldmia r1!, {r3-r5,r12}\r |
| 1900 | subs r2, r2, #1\r |
| 1901 | stmia r0!, {r3-r5,r12}\r |
| 1902 | bne blockcpy_loop\r |
| 1903 | ldmfd sp!, {r4,r5}\r |
| 1904 | bx lr\r |
| 1905 | \r |
| 1906 | \r |
| 1907 | .global blockcpy_or @ void *dst, void *src, size_t n, int pat\r |
| 1908 | \r |
| 1909 | blockcpy_or:\r |
| 1910 | stmfd sp!, {r4-r6}\r |
| 1911 | orr r3, r3, r3, lsl #8\r |
| 1912 | orr r3, r3, r3, lsl #16\r |
| 1913 | mov r2, r2, lsr #4\r |
| 1914 | blockcpy_loop_or:\r |
| 1915 | ldmia r1!, {r4-r6,r12}\r |
| 1916 | subs r2, r2, #1\r |
| 1917 | orr r4, r4, r3\r |
| 1918 | orr r5, r5, r3\r |
| 1919 | orr r6, r6, r3\r |
| 1920 | orr r12,r12,r3\r |
| 1921 | stmia r0!, {r4-r6,r12}\r |
| 1922 | bne blockcpy_loop_or\r |
| 1923 | ldmfd sp!, {r4-r6}\r |
| 1924 | bx lr\r |
| 1925 | \r |
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