| | 1 | /*\r |
| | 2 | * assembly optimized versions of most funtions from draw.c\r |
| | 3 | * (C) notaz, 2006-2010,2017\r |
| | 4 | *\r |
| | 5 | * This work is licensed under the terms of MAME license.\r |
| | 6 | * See COPYING file in the top-level directory.\r |
| | 7 | *\r |
| | 8 | * this is highly specialized, be careful if changing related C code!\r |
| | 9 | */\r |
| | 10 | \r |
| | 11 | #include "pico_int_o32.h"\r |
| | 12 | \r |
| | 13 | .extern DrawStripInterlace\r |
| | 14 | \r |
| | 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 |
| | 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 |
| | 68 | andeq r4, r4, #0xbf\r |
| | 69 | strb r4, [r1,#\offs]\r |
| | 70 | .endm\r |
| | 71 | \r |
| | 72 | @ TileNormShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: register with helper pattern 0xf, touches r3 high bits\r |
| | 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 |
| | 84 | @ TileFlipShHP (r1=pdest, r2=pixels8, r3=pal) r4: scratch, pat: register with helper pattern 0xf\r |
| | 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 |
| | 157 | beq 0f\r |
| | 158 | cmp r4, #0xe\r |
| | 159 | ldrgeb r7, [r1,#\ofs]\r |
| | 160 | orrlt r7, r3, r4 @ normal\r |
| | 161 | \r |
| | 162 | bicge r7, r7, #0xc0\r |
| | 163 | orrge r7, r7, r4, lsl #6\r |
| | 164 | strb r7, [r1,#\ofs]\r |
| | 165 | 0:\r |
| | 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 |
| | 192 | .macro TileDoShGenPixel_markop shift ofs\r |
| | 193 | .if \shift\r |
| | 194 | ands r4, r12, r2, lsr #\shift\r |
| | 195 | .else\r |
| | 196 | ands r4, r12, r2\r |
| | 197 | .endif\r |
| | 198 | beq 0f\r |
| | 199 | cmp r4, #0xe\r |
| | 200 | ldrgeb r4, [r1,#\ofs]\r |
| | 201 | orrlt r4, r3, r4\r |
| | 202 | orrge r4, r4, #0x80\r |
| | 203 | strb r4, [r1,#\ofs]\r |
| | 204 | 0:\r |
| | 205 | .endm\r |
| | 206 | \r |
| | 207 | .macro TileFlipSh_markop\r |
| | 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 |
| | 216 | .endm\r |
| | 217 | \r |
| | 218 | .macro TileNormSh_markop\r |
| | 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 |
| | 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 |
| | 236 | cmp r7, #0xe\r |
| | 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 |
| | 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 |
| | 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 |
| | 281 | @ void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,\r |
| | 282 | @ struct PicoEState *est)\r |
| | 283 | \r |
| | 284 | .global DrawLayer\r |
| | 285 | \r |
| | 286 | DrawLayer:\r |
| | 287 | ldr r12, [sp] @ est\r |
| | 288 | stmfd sp!, {r4-r11,lr}\r |
| | 289 | \r |
| | 290 | ldr r11, [r12, #OFS_Pico_video]\r |
| | 291 | mov r8, #1\r |
| | 292 | \r |
| | 293 | ldrb r7, [r11, #16] @ ??vv??hh\r |
| | 294 | \r |
| | 295 | mov r6, r1 @ hcache\r |
| | 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 |
| | 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 |
| | 312 | ldr r2, [r12, #OFS_DrawScanline]\r |
| | 313 | ldr lr, [r12, #OFS_Pico_vram]\r |
| | 314 | \r |
| | 315 | @ Find name table:\r |
| | 316 | ands r0, r0, #1\r |
| | 317 | ldreqb r12, [r11, #2]\r |
| | 318 | ldrneb r12, [r11, #4]\r |
| | 319 | \r |
| | 320 | @ calculate xmask:\r |
| | 321 | mov r5, r8, lsl r10\r |
| | 322 | sub r5, r5, #1 @ r5=xmask\r |
| | 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 |
| | 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 |
| | 334 | addne r4, r4, r2, lsl #2 @ htab+=DrawScanline<<1; // Offset by line\r |
| | 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 |
| | 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 |
| | 378 | orrne r10,r10, #1<<23 @ r10=(cells<<24|sh<<23|hi_not_empty<<22|had_output<<21|ty)\r |
| | 379 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
| | 380 | \r |
| | 381 | cmp r7, #8\r |
| | 382 | addne r10,r10, #0x01000000 @ we will loop cells+1 times if there is scroll\r |
| | 383 | \r |
| | 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 |
| | 388 | \r |
| | 389 | @ cache some stuff to avoid mem access\r |
| | 390 | ldr r11,[sp, #9*4] @ est\r |
| | 391 | mov r0, #0xf\r |
| | 392 | ldr r11,[r11, #OFS_HighCol]\r |
| | 393 | \r |
| | 394 | mvn r9, #0 @ r9=prevcode=-1\r |
| | 395 | add r1, r11, r7 @ r1=pdest\r |
| | 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 |
| | 420 | orr r10, r10, #1<<21 @ seen non hi-prio tile\r |
| | 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 |
| | 442 | bne .DrawStrip_TileFlip\r |
| | 443 | \r |
| | 444 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
| | 445 | .DrawStrip_TileNorm:\r |
| | 446 | TileNorm r0\r |
| | 447 | b .dsloop\r |
| | 448 | \r |
| | 449 | .DrawStrip_TileFlip:\r |
| | 450 | TileFlip r0\r |
| | 451 | b .dsloop\r |
| | 452 | \r |
| | 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 |
| | 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 |
| | 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 |
| | 490 | b .dsloop\r |
| | 491 | \r |
| | 492 | .dsloop_exit:\r |
| | 493 | tst r10, #1<<21 @ seen non hi-prio tile\r |
| | 494 | ldr r1, [sp, #9*4] @ est\r |
| | 495 | mov r0, #0\r |
| | 496 | ldreq r2, [r1, #OFS_rendstatus]\r |
| | 497 | str r0, [r6] @ terminate the cache list\r |
| | 498 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
| | 499 | streq r2, [r1, #OFS_rendstatus]\r |
| | 500 | \r |
| | 501 | ldmfd sp!, {r4-r11,lr}\r |
| | 502 | bx lr\r |
| | 503 | \r |
| | 504 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 505 | \r |
| | 506 | .DrawStrip_vsscroll:\r |
| | 507 | rsb r8, r3, #0\r |
| | 508 | mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r |
| | 509 | bic r8, r8, #0x3fc00000\r |
| | 510 | orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r |
| | 511 | \r |
| | 512 | ldr r11, [sp, #9*4] @ est\r |
| | 513 | orr r5, r1, r10, lsl #24\r |
| | 514 | ldr r4, [r11, #OFS_DrawScanline]\r |
| | 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 |
| | 519 | \r |
| | 520 | mov r10,r9, lsl #16\r |
| | 521 | tst r0, #1\r |
| | 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 |
| | 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 |
| | 527 | movne r3, #0x40 @ default to shadowed pal on sh mode\r |
| | 528 | \r |
| | 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 |
| | 536 | \r |
| | 537 | @ cache some stuff to avoid mem access\r |
| | 538 | ldr r11,[sp, #9*4] @ est\r |
| | 539 | mov r0, #0xf\r |
| | 540 | ldr r11,[r11, #OFS_HighCol]\r |
| | 541 | \r |
| | 542 | mvn r9, #0 @ r9=prevcode=-1\r |
| | 543 | add r1, r11, r7 @ r1=pdest\r |
| | 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 |
| | 552 | ble .dsloop_vs_exit\r |
| | 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 |
| | 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 |
| | 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 |
| | 589 | orr r8, r8, #(1<<24)@ seen non hi-prio tile\r |
| | 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 |
| | 611 | bne .DrawStrip_vs_TileFlip\r |
| | 612 | \r |
| | 613 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
| | 614 | .DrawStrip_vs_TileNorm:\r |
| | 615 | TileNorm r0\r |
| | 616 | b .dsloop_vs\r |
| | 617 | \r |
| | 618 | .DrawStrip_vs_TileFlip:\r |
| | 619 | TileFlip r0\r |
| | 620 | b .dsloop_vs\r |
| | 621 | \r |
| | 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 |
| | 662 | .dsloop_vs_exit:\r |
| | 663 | tst r8, #(1<<24) @ seen non hi-prio tile\r |
| | 664 | ldr r1, [sp, #9*4] @ est\r |
| | 665 | mov r0, #0\r |
| | 666 | ldreq r2, [r1, #OFS_rendstatus]\r |
| | 667 | str r0, [r6] @ terminate the cache list\r |
| | 668 | orreq r2, r2, #PDRAW_PLANE_HI_PRIO @ had a layer with all hi-prio tiles\r |
| | 669 | streq r2, [r1, #OFS_rendstatus]\r |
| | 670 | \r |
| | 671 | ldmfd sp!, {r4-r11,lr}\r |
| | 672 | bx lr\r |
| | 673 | \r |
| | 674 | \r |
| | 675 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 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 |
| | 684 | add r2, r7, r2, lsl #22 @ r2=(vscroll+(DrawScanline<<1))<<21 (11 bits);\r |
| | 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 |
| | 707 | @ void BackFill(int reg7, int sh, struct PicoEState *est)\r |
| | 708 | \r |
| | 709 | .global BackFill\r |
| | 710 | \r |
| | 711 | BackFill:\r |
| | 712 | stmfd sp!, {r4-r9,lr}\r |
| | 713 | \r |
| | 714 | mov r0, r0, lsl #26\r |
| | 715 | ldr lr, [r2, #OFS_HighCol]\r |
| | 716 | mov r0, r0, lsr #26\r |
| | 717 | add lr, lr, #8\r |
| | 718 | \r |
| | 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 |
| | 743 | ldmfd sp!, {r4-r9,lr}\r |
| | 744 | bx lr\r |
| | 745 | \r |
| | 746 | \r |
| | 747 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 748 | \r |
| | 749 | @ void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)\r |
| | 750 | \r |
| | 751 | .global DrawTilesFromCache\r |
| | 752 | \r |
| | 753 | DrawTilesFromCache:\r |
| | 754 | stmfd sp!, {r4-r9,r11,lr}\r |
| | 755 | \r |
| | 756 | @ cache some stuff to avoid mem access\r |
| | 757 | ldr r11,[r3, #OFS_HighCol]\r |
| | 758 | mov r12,#0xf\r |
| | 759 | ldr lr, [r3, #OFS_Pico_vram]\r |
| | 760 | mov r9, r3 @ est\r |
| | 761 | \r |
| | 762 | mvn r5, #0 @ r5=prevcode=-1\r |
| | 763 | ands r8, r1, #1\r |
| | 764 | orr r8, r8, r2, lsl #1\r |
| | 765 | bne .dtfc_check_rendflags\r |
| | 766 | \r |
| | 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 |
| | 771 | ldmeqfd sp!, {r4-r9,r11,pc} @ dx is never zero, this must be a terminator, return\r |
| | 772 | bic r4, r1, #0xfe00\r |
| | 773 | add r1, r11, r4 @ r1=pdest\r |
| | 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 |
| | 791 | rsbs r4, r4, r8, lsr #1\r |
| | 792 | bmi .dtfc_cut_tile\r |
| | 793 | \r |
| | 794 | tst r8, #1\r |
| | 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 |
| | 804 | bne .dtfc_TileFlip\r |
| | 805 | \r |
| | 806 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| | 807 | .dtfc_TileNorm:\r |
| | 808 | TileNorm r12\r |
| | 809 | b .dtfc_loop\r |
| | 810 | \r |
| | 811 | .dtfc_TileFlip:\r |
| | 812 | TileFlip r12\r |
| | 813 | b .dtfc_loop\r |
| | 814 | \r |
| | 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 |
| | 836 | bne .dtfc_TileFlipShHP\r |
| | 837 | \r |
| | 838 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| | 839 | .dtfc_TileNormShHP:\r |
| | 840 | TileNormShHP\r |
| | 841 | b .dtfc_loop\r |
| | 842 | \r |
| | 843 | .dtfc_TileFlipShHP:\r |
| | 844 | TileFlipShHP\r |
| | 845 | b .dtfc_loop\r |
| | 846 | \r |
| | 847 | .dtfc_shadow_blank:\r |
| | 848 | tst r1, #1\r |
| | 849 | ldrneb r4, [r1]\r |
| | 850 | mov r6, #0xbf\r |
| | 851 | and r4, r4, #0xbf\r |
| | 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 |
| | 867 | b .dtfc_loop\r |
| | 868 | \r |
| | 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 |
| | 888 | @ check if we have detected layer covered with hi-prio tiles:\r |
| | 889 | .dtfc_check_rendflags:\r |
| | 890 | ldr r2, [r9, #OFS_rendstatus]\r |
| | 891 | tst r2, #(PDRAW_PLANE_HI_PRIO|PDRAW_SHHI_DONE)\r |
| | 892 | beq .dtfc_loop\r |
| | 893 | bic r8, r8, #1 @ sh/hi mode off\r |
| | 894 | tst r2, #PDRAW_SHHI_DONE\r |
| | 895 | bne .dtfc_loop @ already processed\r |
| | 896 | orr r2, r2, #PDRAW_SHHI_DONE\r |
| | 897 | str r2, [r9, #OFS_rendstatus]\r |
| | 898 | \r |
| | 899 | add r1, r11,#8\r |
| | 900 | mov r3, #320/4/4\r |
| | 901 | mov r6, #0xbf\r |
| | 902 | orr r6, r6, r6, lsl #8\r |
| | 903 | orr r6, r6, r6, lsl #16\r |
| | 904 | .dtfc_loop_shprep:\r |
| | 905 | ldmia r1, {r2,r4,r5,r7}\r |
| | 906 | subs r3, r3, #1\r |
| | 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 |
| | 916 | \r |
| | 917 | .pool\r |
| | 918 | \r |
| | 919 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 920 | \r |
| | 921 | \r |
| | 922 | @ void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est)\r |
| | 923 | \r |
| | 924 | .global DrawSpritesSHi\r |
| | 925 | \r |
| | 926 | DrawSpritesSHi:\r |
| | 927 | ldr r3, [r0]\r |
| | 928 | mov r12,#0xff\r |
| | 929 | ands r3, r3, #0x7f\r |
| | 930 | bxeq lr\r |
| | 931 | \r |
| | 932 | stmfd sp!, {r1,r4-r11,lr} @ +est\r |
| | 933 | strb r12,[r0,#2] @ set end marker\r |
| | 934 | add r10,r0, #3 @ r10=HighLnSpr end\r |
| | 935 | add r10,r10,r3 @ r10=HighLnSpr end\r |
| | 936 | \r |
| | 937 | ldr r11,[r1, #OFS_HighCol]\r |
| | 938 | mov r12,#0xf\r |
| | 939 | ldr lr, [r1, #OFS_Pico_vram]\r |
| | 940 | \r |
| | 941 | \r |
| | 942 | DrawSpriteSHi:\r |
| | 943 | @ draw next sprite\r |
| | 944 | ldrb r0, [r10,#-1]!\r |
| | 945 | ldr r7, [sp] @ est\r |
| | 946 | ldr r1, [r7, #OFS_HighPreSpr]\r |
| | 947 | cmp r0, #0xff\r |
| | 948 | ldmeqfd sp!, {r1,r4-r11,pc} @ end of list\r |
| | 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 |
| | 954 | \r |
| | 955 | mov r9, r9, lsl #16\r |
| | 956 | mov r3, r9, lsr #31 @ priority\r |
| | 957 | mov r9, r9, lsr #16\r |
| | 958 | @ orr r9, r9, r8, lsl #31 @ r9=code|sh[31] @@ sh is always on here now\r |
| | 959 | and r4, r9, #0x6000\r |
| | 960 | orr r9, r9, r4, lsl #16\r |
| | 961 | orr r9, r9, #0x90000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
| | 962 | cmp r12,r9, lsr #28 @ sh/hi with pal3?\r |
| | 963 | cmpne r3, #1 @ if not, is it hi prio?\r |
| | 964 | bne DrawSpriteSHi @ non-operator low sprite, already drawn\r |
| | 965 | \r |
| | 966 | ldr r3, [r0] @ sprite[0]\r |
| | 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 |
| | 971 | \r |
| | 972 | ldr r7, [r7, #OFS_DrawScanline]\r |
| | 973 | mov r0, r3, lsl #16 @ r4=sy<<16 (tmp)\r |
| | 974 | \r |
| | 975 | sub r7, r7, r0, asr #16 @ r7=row=DrawScanline-sy\r |
| | 976 | \r |
| | 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 |
| | 981 | \r |
| | 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 |
| | 986 | \r |
| | 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 |
| | 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 |
| | 1007 | cmp r0, #328\r |
| | 1008 | bge DrawSpriteSHi\r |
| | 1009 | \r |
| | 1010 | mov r8, r8, lsl #17\r |
| | 1011 | mov r8, r8, lsr #17 @ tile&=0x7fff; // Clip tile address\r |
| | 1012 | \r |
| | 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 |
| | 1015 | tst r2, r2\r |
| | 1016 | beq .dsprShi_loop\r |
| | 1017 | \r |
| | 1018 | cmp r12, r9, lsr #28\r |
| | 1019 | beq .dsprShi_shadow\r |
| | 1020 | \r |
| | 1021 | cmp r2, r2, ror #4\r |
| | 1022 | beq .dsprShi_SingleColor @ tileline singlecolor \r |
| | 1023 | \r |
| | 1024 | tst r9, #0x0800\r |
| | 1025 | bne .dsprShi_TileFlip\r |
| | 1026 | \r |
| | 1027 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| | 1028 | @ scratch: r4, r7\r |
| | 1029 | .dsprShi_TileNorm:\r |
| | 1030 | TileNorm r12\r |
| | 1031 | b .dsprShi_loop\r |
| | 1032 | \r |
| | 1033 | .dsprShi_TileFlip:\r |
| | 1034 | TileFlip r12\r |
| | 1035 | b .dsprShi_loop\r |
| | 1036 | \r |
| | 1037 | .dsprShi_SingleColor:\r |
| | 1038 | and r4, r2, #0xf\r |
| | 1039 | orr r4, r3, r4\r |
| | 1040 | orr r4, r4, r4, lsl #8\r |
| | 1041 | tst r0, #1 @ not aligned?\r |
| | 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 |
| | 1048 | b .dsprShi_loop\r |
| | 1049 | \r |
| | 1050 | .dsprShi_shadow:\r |
| | 1051 | tst r9, #0x8000\r |
| | 1052 | beq .dsprShi_shadow_lowpri\r |
| | 1053 | \r |
| | 1054 | cmp r2, r2, ror #4\r |
| | 1055 | beq .dsprShi_singlec_sh\r |
| | 1056 | \r |
| | 1057 | tst r9, #0x0800\r |
| | 1058 | bne .dsprShi_TileFlip_sh\r |
| | 1059 | \r |
| | 1060 | @ (r1=pdest, r2=pixels8, r3=pal) r4, r7: scratch, r12: helper pattern\r |
| | 1061 | .dsprShi_TileNorm_sh:\r |
| | 1062 | TileNormSh\r |
| | 1063 | b .dsprShi_loop\r |
| | 1064 | \r |
| | 1065 | .dsprShi_TileFlip_sh:\r |
| | 1066 | TileFlipSh\r |
| | 1067 | b .dsprShi_loop\r |
| | 1068 | \r |
| | 1069 | .dsprShi_singlec_sh:\r |
| | 1070 | cmp r2, #0xe0000000\r |
| | 1071 | bcc .dsprShi_SingleColor @ normal singlecolor tileline (carry inverted in ARM)\r |
| | 1072 | tst r2, #0x10000000\r |
| | 1073 | bne .dsprShi_sh_sh\r |
| | 1074 | TileSingleHi\r |
| | 1075 | b .dsprShi_loop\r |
| | 1076 | \r |
| | 1077 | .dsprShi_sh_sh:\r |
| | 1078 | TileSingleSh\r |
| | 1079 | b .dsprShi_loop\r |
| | 1080 | \r |
| | 1081 | .dsprShi_shadow_lowpri:\r |
| | 1082 | tst r9, #0x800\r |
| | 1083 | bne .dsprShi_TileFlip_sh_lp\r |
| | 1084 | \r |
| | 1085 | .dsprShi_TileNorm_sh_lp:\r |
| | 1086 | TileNormSh_onlyop_lp\r |
| | 1087 | b .dsprShi_loop\r |
| | 1088 | \r |
| | 1089 | .dsprShi_TileFlip_sh_lp:\r |
| | 1090 | TileFlipSh_onlyop_lp\r |
| | 1091 | b .dsprShi_loop\r |
| | 1092 | \r |
| | 1093 | .pool\r |
| | 1094 | \r |
| | 1095 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 1096 | \r |
| | 1097 | @ void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
| | 1098 | @ struct PicoEState *est)\r |
| | 1099 | \r |
| | 1100 | .global DrawAllSprites\r |
| | 1101 | \r |
| | 1102 | DrawAllSprites:\r |
| | 1103 | orr r1, r2, r1, lsl #1\r |
| | 1104 | ldr r12,[r3, #OFS_rendstatus]\r |
| | 1105 | tst r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
| | 1106 | beq das_no_prep\r |
| | 1107 | stmfd sp!, {r0,r1,r3,lr}\r |
| | 1108 | and r0, r12,#PDRAW_DIRTY_SPRITES\r |
| | 1109 | bic r12,r12,#(PDRAW_DIRTY_SPRITES|PDRAW_SPRITES_MOVED)\r |
| | 1110 | str r12,[r3, #OFS_rendstatus]\r |
| | 1111 | bl PrepareSprites\r |
| | 1112 | ldmfd sp!, {r0,r1,r3,lr}\r |
| | 1113 | \r |
| | 1114 | das_no_prep:\r |
| | 1115 | ldr r2, [r0]\r |
| | 1116 | ands r2, r2, #0x7f\r |
| | 1117 | bxeq lr\r |
| | 1118 | \r |
| | 1119 | @ time to do some real work\r |
| | 1120 | stmfd sp!, {r1,r3-r11,lr} @ +sh|prio<<1 +est\r |
| | 1121 | mov r12,#0xff\r |
| | 1122 | strb r12,[r0,#2] @ set end marker\r |
| | 1123 | add r10,r0, #3\r |
| | 1124 | add r10,r10,r2 @ r10=HighLnSpr end\r |
| | 1125 | \r |
| | 1126 | ldr r11,[r3, #OFS_HighCol]\r |
| | 1127 | mov r12,#0xf\r |
| | 1128 | ldr lr, [r3, #OFS_Pico_vram]\r |
| | 1129 | \r |
| | 1130 | @ + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size\r |
| | 1131 | @ + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
| | 1132 | \r |
| | 1133 | DrawSprite:\r |
| | 1134 | @ draw next sprite\r |
| | 1135 | ldrb r0, [r10,#-1]!\r |
| | 1136 | ldr r8, [sp] @ sh|prio<<1\r |
| | 1137 | ldr r7, [sp, #4] @ est\r |
| | 1138 | mov r2, r0, lsr #7\r |
| | 1139 | cmp r0, #0xff\r |
| | 1140 | ldmeqfd sp!, {r1,r3-r11,pc} @ end of list\r |
| | 1141 | cmp r2, r8, lsr #1\r |
| | 1142 | bne DrawSprite @ wrong priority\r |
| | 1143 | ldr r1, [r7, #OFS_HighPreSpr]\r |
| | 1144 | and r0, r0, #0x7f\r |
| | 1145 | add r0, r1, r0, lsl #3\r |
| | 1146 | \r |
| | 1147 | ldr r3, [r0] @ sprite[0]\r |
| | 1148 | ldr r7, [r7, #OFS_DrawScanline]\r |
| | 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 |
| | 1156 | ldr r9, [r0, #4]\r |
| | 1157 | sub r7, r7, r4, asr #16 @ r7=row=DrawScanline-sy\r |
| | 1158 | \r |
| | 1159 | mov r2, r9, asr #16 @ r2=sx\r |
| | 1160 | mov r9, r9, lsl #16\r |
| | 1161 | mov r9, r9, lsr #16\r |
| | 1162 | orr r9, r9, r8, lsl #31 @ r9=code|sh[31]\r |
| | 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 |
| | 1169 | add r8, r9, r7, lsr #3 @ tile+=row>>3; // Tile number increases going down\r |
| | 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 |
| | 1174 | mov r8, r8, lsl #21\r |
| | 1175 | mov r8, r8, lsr #17\r |
| | 1176 | and r7, r7, #7\r |
| | 1177 | add r8, r8, r7, lsl #1 @ tile+=(row&7)<<1; // Tile address\r |
| | 1178 | \r |
| | 1179 | .dspr_continue:\r |
| | 1180 | @ cache some stuff to avoid mem access\r |
| | 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 |
| | 1184 | orrs r9, r9, #0x10000000 @ r9=scc1 ???? ... <code> (s=shadow/hilight, cc=pal)\r |
| | 1185 | \r |
| | 1186 | mov r3, r4, lsr #9 @ r3=pal=((code>>9)&0x30);\r |
| | 1187 | orrmi r3, r3, #0x40 @ for sh/hi\r |
| | 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 |
| | 1195 | beq DrawSprite\r |
| | 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 |
| | 1202 | bge DrawSprite\r |
| | 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 |
| | 1219 | bne .dspr_TileFlip\r |
| | 1220 | \r |
| | 1221 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| | 1222 | @ scratch: r4, r7\r |
| | 1223 | .dspr_TileNorm:\r |
| | 1224 | TileNorm r12\r |
| | 1225 | b .dspr_loop\r |
| | 1226 | \r |
| | 1227 | .dspr_TileFlip:\r |
| | 1228 | TileFlip r12\r |
| | 1229 | b .dspr_loop\r |
| | 1230 | \r |
| | 1231 | .dspr_singlec_sh:\r |
| | 1232 | cmp r2, #0xe0000000\r |
| | 1233 | bcs .dspr_TileNorm_sh @ op. tileline, markop. XXX: maybe add a spec. handler?\r |
| | 1234 | \r |
| | 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 |
| | 1253 | bne .dspr_TileFlip_sh\r |
| | 1254 | \r |
| | 1255 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r12: helper pattern\r |
| | 1256 | .dspr_TileNorm_sh:\r |
| | 1257 | TileNormSh_markop\r |
| | 1258 | b .dspr_loop\r |
| | 1259 | \r |
| | 1260 | .dspr_TileFlip_sh:\r |
| | 1261 | TileFlipSh_markop\r |
| | 1262 | b .dspr_loop\r |
| | 1263 | \r |
| | 1264 | \r |
| | 1265 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 1266 | \r |
| | 1267 | @ void DrawWindow(int tstart, int tend, int prio, int sh\r |
| | 1268 | @ struct PicoEState *est)\r |
| | 1269 | \r |
| | 1270 | .global DrawWindow\r |
| | 1271 | \r |
| | 1272 | DrawWindow:\r |
| | 1273 | ldr r12, [sp] @ est\r |
| | 1274 | stmfd sp!, {r4-r11,lr}\r |
| | 1275 | \r |
| | 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 |
| | 1280 | \r |
| | 1281 | ldr r4, [r6, #12]\r |
| | 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 |
| | 1295 | ldr lr, [r11, #OFS_Pico_vram]\r |
| | 1296 | ldr r6, [r11, #OFS_rendstatus]\r |
| | 1297 | \r |
| | 1298 | @ fetch the first code now\r |
| | 1299 | ldrh r7, [lr, r12]\r |
| | 1300 | \r |
| | 1301 | ands r6, r6, #PDRAW_WND_DIFF_PRIO\r |
| | 1302 | orr r6, r6, r2\r |
| | 1303 | \r |
| | 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 |
| | 1307 | \r |
| | 1308 | orr r6, r6, r3, lsl #8 @ shadow mode\r |
| | 1309 | \r |
| | 1310 | sub r8, r1, r0\r |
| | 1311 | \r |
| | 1312 | @ cache some stuff to avoid mem access\r |
| | 1313 | ldr r11, [r11, #OFS_HighCol]\r |
| | 1314 | mov r8, r8, lsl #1 @ cells\r |
| | 1315 | add r11,r11,#8\r |
| | 1316 | mvn r9, #0 @ r9=prevcode=-1\r |
| | 1317 | add r1, r11, r0, lsl #4 @ r1=pdest\r |
| | 1318 | mov r0, #0xf\r |
| | 1319 | b .dwloop_enter\r |
| | 1320 | \r |
| | 1321 | @ r4,r5 are scratch in this loop\r |
| | 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 |
| | 1362 | bne .dw_TileFlip\r |
| | 1363 | \r |
| | 1364 | @ (r1=pdest, r2=pixels8, r3=pal) r4: scratch, r0: helper pattern\r |
| | 1365 | .dw_TileNorm:\r |
| | 1366 | TileNorm r0\r |
| | 1367 | b .dwloop\r |
| | 1368 | \r |
| | 1369 | .dw_TileFlip:\r |
| | 1370 | TileFlip r0\r |
| | 1371 | b .dwloop\r |
| | 1372 | \r |
| | 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 |
| | 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 |
| | 1391 | str r4, [r1]\r |
| | 1392 | ldr r4, [r1,#4]\r |
| | 1393 | and r4, r4, r5\r |
| | 1394 | str r4, [r1,#4]\r |
| | 1395 | b .dw_shadow_done\r |
| | 1396 | \r |
| | 1397 | .dwloop_end:\r |
| | 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 |
| | 1404 | \r |
| | 1405 | bx lr\r |
| | 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 |
| | 1435 | @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r |
| | 1436 | \r |
| | 1437 | \r |
| | 1438 | @ Convert 0000bbb0 ggg0rrr0\r |
| | 1439 | @ to rrrrrggg gggbbbbb\r |
| | 1440 | \r |
| | 1441 | @ r2,r3 - scratch, lr = 0x001c001c, r8 = 0x08610861\r |
| | 1442 | .macro convRGB565 reg\r |
| | 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 |
| | 1451 | .endm\r |
| | 1452 | \r |
| | 1453 | @ trashes: r2-r8,r12,lr; r8 = 0x08610861; r0,r1 are advanced\r |
| | 1454 | .macro vidConvCpyRGB565_local\r |
| | 1455 | mov r12, r2, lsr #3 @ repeats\r |
| | 1456 | mov lr, #0x001c0000\r |
| | 1457 | orr lr, lr, #0x01c @ lr == pattern 0x001c001c\r |
| | 1458 | \r |
| | 1459 | 0:\r |
| | 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 |
| | 1471 | bgt 0b\r |
| | 1472 | .endm\r |
| | 1473 | \r |
| | 1474 | \r |
| | 1475 | .global vidConvCpyRGB565\r |
| | 1476 | \r |
| | 1477 | vidConvCpyRGB565: @ void *to, void *from, int pixels\r |
| | 1478 | stmfd sp!, {r4-r9,lr}\r |
| | 1479 | mov r8, #0x0061\r |
| | 1480 | orr r8, r8, #0x0800\r |
| | 1481 | orr r8, r8, r8, lsl #16\r |
| | 1482 | vidConvCpyRGB565_local\r |
| | 1483 | ldmfd sp!, {r4-r9,lr}\r |
| | 1484 | bx lr\r |
| | 1485 | \r |
| | 1486 | \r |
| | 1487 | @ void PicoDoHighPal555(int sh, int line, struct PicoEState *est)\r |
| | 1488 | \r |
| | 1489 | .global PicoDoHighPal555\r |
| | 1490 | \r |
| | 1491 | PicoDoHighPal555:\r |
| | 1492 | stmfd sp!, {r4-r10,lr}\r |
| | 1493 | mov r10,r2 @ est\r |
| | 1494 | mov r1, #0\r |
| | 1495 | ldr r8, [r10, #OFS_Pico_video]\r |
| | 1496 | \r |
| | 1497 | PicoDoHighPal555_nopush:\r |
| | 1498 | orr r9, r1, r0, lsl #31 @ 0:called from FinalizeLine555, 31: s/h\r |
| | 1499 | \r |
| | 1500 | add r0, r10, #OFS_HighPal\r |
| | 1501 | \r |
| | 1502 | mov r1, #0\r |
| | 1503 | strb r1, [r8, #-0x1a] @ 0x2220e ~ dirtyPal\r |
| | 1504 | \r |
| | 1505 | sub r1, r8, #0x128 @ r1=Pico.cram\r |
| | 1506 | mov r2, #0x40\r |
| | 1507 | mov r8, #0x0061\r |
| | 1508 | orr r8, r8, #0x0800\r |
| | 1509 | orr r8, r8, r8, lsl #16\r |
| | 1510 | \r |
| | 1511 | vidConvCpyRGB565_local\r |
| | 1512 | \r |
| | 1513 | tst r9, #(1<<31)\r |
| | 1514 | beq PicoDoHighPal555_end\r |
| | 1515 | \r |
| | 1516 | add r3, r10, #OFS_HighPal\r |
| | 1517 | \r |
| | 1518 | @ shadowed pixels:\r |
| | 1519 | mov r12, #0x008e\r |
| | 1520 | add r4, r3, #0x40*2\r |
| | 1521 | orr r12,r12,#0x7300\r |
| | 1522 | add r5, r3, #0xc0*2\r |
| | 1523 | orr r12,r12,r12,lsl #16\r |
| | 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 |
| | 1535 | @ t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e;\r |
| | 1536 | @ t |= (t >> 4) & 0x08610861;\r |
| | 1537 | @ r8=0x08610861\r |
| | 1538 | sub r3, r3, #0x40*2\r |
| | 1539 | mov lr, #0x40/4\r |
| | 1540 | .fl_loopcpRGB555_hi:\r |
| | 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 |
| | 1551 | subs lr, lr, #1\r |
| | 1552 | bne .fl_loopcpRGB555_hi\r |
| | 1553 | mov r0, #1\r |
| | 1554 | \r |
| | 1555 | PicoDoHighPal555_end:\r |
| | 1556 | tst r9, #1\r |
| | 1557 | ldmeqfd sp!, {r4-r10,pc}\r |
| | 1558 | \r |
| | 1559 | ldr r8, [r10, #OFS_Pico_video]\r |
| | 1560 | b FinalizeLineRGB555_pal_done\r |
| | 1561 | \r |
| | 1562 | \r |
| | 1563 | @ void FinalizeLine555(int sh, int line, struct PicoEState *est)\r |
| | 1564 | \r |
| | 1565 | .global FinalizeLine555\r |
| | 1566 | \r |
| | 1567 | FinalizeLine555:\r |
| | 1568 | stmfd sp!, {r4-r10,lr}\r |
| | 1569 | mov r10,r2 @ est\r |
| | 1570 | ldr r8, [r10, #OFS_Pico_video]\r |
| | 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 |
| | 1578 | add r3, r10, #OFS_HighPal\r |
| | 1579 | \r |
| | 1580 | ldr r12, [r10, #OFS_rendstatus]\r |
| | 1581 | eors r0, r0, #1 @ sh is 0\r |
| | 1582 | mov lr, #0xff\r |
| | 1583 | tstne r12,#PDRAW_ACC_SPRITES\r |
| | 1584 | movne lr, #0x3f\r |
| | 1585 | \r |
| | 1586 | ldr r1, [r10, #OFS_HighCol]\r |
| | 1587 | ldr r0, [r10, #OFS_DrawLineDest]\r |
| | 1588 | add r1, r1, #8\r |
| | 1589 | \r |
| | 1590 | ldrb r12, [r8, #12]\r |
| | 1591 | mov lr, lr, lsl #1\r |
| | 1592 | \r |
| | 1593 | tst r12, #1\r |
| | 1594 | movne r2, #320/8 @ len\r |
| | 1595 | bne .fl_no32colRGB555\r |
| | 1596 | ldr r4, [r10, #OFS_PicoOpt]\r |
| | 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 |
| | 1605 | \r |
| | 1606 | #ifdef UNALIGNED_DRAWLINEDEST\r |
| | 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 |
| | 1610 | #endif\r |
| | 1611 | \r |
| | 1612 | .fl_loopRGB555:\r |
| | 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 |
| | 1634 | and r7, lr, r7, lsr #23\r |
| | 1635 | ldrh r7, [r3, r7]\r |
| | 1636 | orr r8, r8, r6, lsl #16\r |
| | 1637 | \r |
| | 1638 | subs r2, r2, #1\r |
| | 1639 | orr r12,r12, r7, lsl #16\r |
| | 1640 | \r |
| | 1641 | stmia r0!, {r4,r5,r8,r12}\r |
| | 1642 | bne .fl_loopRGB555\r |
| | 1643 | \r |
| | 1644 | ldmfd sp!, {r4-r10,lr}\r |
| | 1645 | bx lr\r |
| | 1646 | \r |
| | 1647 | \r |
| | 1648 | .fl_32scale_RGB555:\r |
| | 1649 | mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007\r |
| | 1650 | orr r9, r9, #0x00e7\r |
| | 1651 | \r |
| | 1652 | #ifdef UNALIGNED_DRAWLINEDEST\r |
| | 1653 | tst r0, #2\r |
| | 1654 | bne .fl_32scale_RGB555u\r |
| | 1655 | #endif\r |
| | 1656 | \r |
| | 1657 | .fl_loop32scale_RGB555:\r |
| | 1658 | ldr r12, [r1], #4\r |
| | 1659 | ldr r7, [r1], #4\r |
| | 1660 | \r |
| | 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 |
| | 1709 | ldmfd sp!, {r4-r10,lr}\r |
| | 1710 | bx lr\r |
| | 1711 | \r |
| | 1712 | #ifdef UNALIGNED_DRAWLINEDEST\r |
| | 1713 | @ unaligned versions of loops\r |
| | 1714 | @ warning: starts drawing 2bytes before dst\r |
| | 1715 | \r |
| | 1716 | .fl_RGB555u:\r |
| | 1717 | sub r0, r0, #2 @ initial adjustment\r |
| | 1718 | mov r8, #0\r |
| | 1719 | \r |
| | 1720 | .fl_loopRGB555u:\r |
| | 1721 | ldr r12, [r1], #4\r |
| | 1722 | ldr r7, [r1], #4\r |
| | 1723 | \r |
| | 1724 | and r6, lr, r12,lsl #1\r |
| | 1725 | ldrh r6, [r3, r6]\r |
| | 1726 | and r5, lr, r12,lsr #7\r |
| | 1727 | ldrh r5, [r3, r5]\r |
| | 1728 | orr r4, r8, r6, lsl #16\r |
| | 1729 | \r |
| | 1730 | and r6, lr, r12,lsr #15\r |
| | 1731 | ldrh r6, [r3, r6]\r |
| | 1732 | and r8, lr, r12,lsr #23\r |
| | 1733 | ldrh r8, [r3, r8]\r |
| | 1734 | orr r5, r5, r6, lsl #16\r |
| | 1735 | \r |
| | 1736 | and r6, lr, r7, lsl #1\r |
| | 1737 | ldrh r6, [r3, r6]\r |
| | 1738 | and r12,lr, r7, lsr #7\r |
| | 1739 | ldrh r12,[r3, r12]\r |
| | 1740 | orr r6, r8, r6, lsl #16\r |
| | 1741 | \r |
| | 1742 | and r8, lr, r7, lsr #15\r |
| | 1743 | ldrh r8, [r3, r8]\r |
| | 1744 | and r7, lr, r7, lsr #23\r |
| | 1745 | \r |
| | 1746 | subs r2, r2, #1\r |
| | 1747 | orr r12,r12,r8, lsl #16\r |
| | 1748 | ldrh r8, [r3, r7]\r |
| | 1749 | \r |
| | 1750 | stmia r0!, {r4,r5,r6,r12}\r |
| | 1751 | bne .fl_loopRGB555u\r |
| | 1752 | \r |
| | 1753 | strh r8, [r0], #2\r |
| | 1754 | \r |
| | 1755 | ldmfd sp!, {r4-r10,lr}\r |
| | 1756 | bx lr\r |
| | 1757 | \r |
| | 1758 | \r |
| | 1759 | .fl_32scale_RGB555u:\r |
| | 1760 | sub r0, r0, #2 @ initial adjustment\r |
| | 1761 | mov r4, #0\r |
| | 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 |
| | 1768 | and r6, lr, r12,lsl #1\r |
| | 1769 | ldrh r6, [r3, r6]\r |
| | 1770 | and r5, lr, r12,lsr #7\r |
| | 1771 | ldrh r5, [r3, r5]\r |
| | 1772 | and r6, r6, r9, lsl #2\r |
| | 1773 | orr r4, r4, r6, lsl #16 @ r4 = pix_d -1, 0\r |
| | 1774 | \r |
| | 1775 | and r5, r5, r9, lsl #2\r |
| | 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 |
| | 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 |
| | 1785 | add r5, r5, r6, lsl #15 @ r5 = pix_d 1, 2\r |
| | 1786 | \r |
| | 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 |
| | 1791 | and r12,r12,r9, lsl #2\r |
| | 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 |
| | 1795 | \r |
| | 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 |
| | 1802 | ldrh r12,[r3, r12]\r |
| | 1803 | and r7, lr, r7, lsr #23\r |
| | 1804 | ldrh r7, [r3, r7]\r |
| | 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 |
| | 1810 | and r7, r7, r9, lsl #2\r |
| | 1811 | add r10,r10,r7, lsl #14 @ r10 = pix_d 7, 8\r |
| | 1812 | \r |
| | 1813 | subs r2, r2, #1\r |
| | 1814 | \r |
| | 1815 | stmia r0!, {r4,r5,r6,r8,r10}\r |
| | 1816 | mov r4, r7\r |
| | 1817 | bne .fl_loop32scale_RGB555u\r |
| | 1818 | \r |
| | 1819 | strh r4, [r0], #2\r |
| | 1820 | \r |
| | 1821 | ldmfd sp!, {r4-r10,lr}\r |
| | 1822 | bx lr\r |
| | 1823 | \r |
| | 1824 | #endif /* UNALIGNED_DRAWLINEDEST */\r |
| | 1825 | \r |
| | 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 |
| | 1863 | @ vim:filetype=armasm\r |
notaz.gp2x.de / picodrive.git / blame_incremental