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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 | /* * fp_movem.S * * Copyright Roman Zippel, 1997. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, and the entire permission notice in its entirety, * including the disclaimer of warranties. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * ALTERNATIVELY, this product may be distributed under the terms of * the GNU General Public License, in which case the provisions of the GPL are * required INSTEAD OF the above restrictions. (This clause is * necessary due to a potential bad interaction between the GPL and * the restrictions contained in a BSD-style copyright.) * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "fp_emu.h" #include "fp_decode.h" | set flags for decode macros for fmovem do_fmovem=1 .globl fp_fmovem_fp, fp_fmovem_cr | %d1 contains the mask and count of the register list | for other register usage see fp_decode.h fp_fmovem_fp: printf PDECODE,"fmovem.x " | get register list and count them btst #11,%d2 jne 1f bfextu %d2{#24,#8},%d0 | static register list jra 2f 1: bfextu %d2{#25,#3},%d0 | dynamic register list jsr fp_get_data_reg 2: move.l %d0,%d1 swap %d1 jra 2f 1: addq.w #1,%d1 | count the # of registers in 2: lsr.b #1,%d0 | register list and keep it in %d1 jcs 1b jne 2b printf PDECODE,"#%08x",1,%d1 #ifdef FPU_EMU_DEBUG btst #12,%d2 jne 1f printf PDECODE,"-" | decremental move jra 2f 1: printf PDECODE,"+" | incremental move 2: btst #13,%d2 jeq 1f printf PDECODE,"->" | fpu -> cpu jra 2f 1: printf PDECODE,"<-" | fpu <- cpu 2: #endif | decode address mode fp_decode_addr_mode .long fp_ill, fp_ill .long fpr_indirect, fpr_postinc .long fpr_predecr, fpr_disp16 .long fpr_extmode0, fpr_extmode1 | addressing mode: address register indirect fpr_indirect: fp_mode_addr_indirect jra fpr_do_movem | addressing mode: address register indirect with postincrement fpr_postinc: fp_mode_addr_indirect_postinc jra fpr_do_movem fpr_predecr: fp_mode_addr_indirect_predec jra fpr_do_movem | addressing mode: address register/programm counter indirect | with 16bit displacement fpr_disp16: fp_mode_addr_indirect_disp16 jra fpr_do_movem fpr_extmode0: fp_mode_addr_indirect_extmode0 jra fpr_do_movem fpr_extmode1: fp_decode_addr_reg jmp ([0f:w,%pc,%d0*4]) .align 4 0: .long fpr_absolute_short, fpr_absolute_long .long fpr_disp16, fpr_extmode0 .long fp_ill, fp_ill .long fp_ill, fp_ill fpr_absolute_short: fp_mode_abs_short jra fpr_do_movem fpr_absolute_long: fp_mode_abs_long | jra fpr_do_movem fpr_do_movem: swap %d1 | get fpu register list lea (FPD_FPREG,FPDATA),%a1 moveq #12,%d0 btst #12,%d2 jne 1f lea (-12,%a1,%d0*8),%a1 neg.l %d0 1: btst #13,%d2 jne 4f | move register from memory into fpu jra 3f 1: printf PMOVEM,"(%p>%p)",2,%a0,%a1 getuser.l (%a0)+,%d2,fp_err_ua1,%a0 lsr.l #8,%d2 lsr.l #7,%d2 lsr.w #1,%d2 move.l %d2,(%a1)+ getuser.l (%a0)+,%d2,fp_err_ua1,%a0 move.l %d2,(%a1)+ getuser.l (%a0),%d2,fp_err_ua1,%a0 move.l %d2,(%a1) subq.l #8,%a0 subq.l #8,%a1 add.l %d0,%a0 2: add.l %d0,%a1 3: lsl.b #1,%d1 jcs 1b jne 2b jra 5f | move register from fpu into memory 1: printf PMOVEM,"(%p>%p)",2,%a1,%a0 move.l (%a1)+,%d2 lsl.w #1,%d2 lsl.l #7,%d2 lsl.l #8,%d2 putuser.l %d2,(%a0)+,fp_err_ua1,%a0 move.l (%a1)+,%d2 putuser.l %d2,(%a0)+,fp_err_ua1,%a0 move.l (%a1),%d2 putuser.l %d2,(%a0),fp_err_ua1,%a0 subq.l #8,%a1 subq.l #8,%a0 add.l %d0,%a0 2: add.l %d0,%a1 4: lsl.b #1,%d1 jcs 1b jne 2b 5: printf PDECODE,"\n" #if 0 lea (FPD_FPREG,FPDATA),%a0 printf PMOVEM,"fp:" printx PMOVEM,%a0@(0) printx PMOVEM,%a0@(12) printf PMOVEM,"\n " printx PMOVEM,%a0@(24) printx PMOVEM,%a0@(36) printf PMOVEM,"\n " printx PMOVEM,%a0@(48) printx PMOVEM,%a0@(60) printf PMOVEM,"\n " printx PMOVEM,%a0@(72) printx PMOVEM,%a0@(84) printf PMOVEM,"\n" #endif jra fp_end | set flags for decode macros for fmovem control register do_fmovem=1 do_fmovem_cr=1 fp_fmovem_cr: printf PDECODE,"fmovem.cr " | get register list and count them bfextu %d2{#19,#3},%d0 move.l %d0,%d1 swap %d1 jra 2f 1: addq.w #1,%d1 2: lsr.l #1,%d0 jcs 1b jne 2b printf PDECODE,"#%08x",1,%d1 #ifdef FPU_EMU_DEBUG btst #13,%d2 jeq 1f printf PDECODE,"->" | fpu -> cpu jra 2f 1: printf PDECODE,"<-" | fpu <- cpu 2: #endif | decode address mode fp_decode_addr_mode .long fpc_data, fpc_addr .long fpc_indirect, fpc_postinc .long fpc_predecr, fpc_disp16 .long fpc_extmode0, fpc_extmode1 fpc_data: fp_mode_data_direct move.w %d0,%d1 bfffo %d2{#19,#3},%d0 sub.w #19,%d0 lea (FPD_FPCR,FPDATA,%d0.w*4),%a1 btst #13,%d2 jne 1f move.w %d1,%d0 jsr fp_get_data_reg move.l %d0,(%a1) jra fpc_movem_fin 1: move.l (%a1),%d0 jsr fp_put_data_reg jra fpc_movem_fin fpc_addr: fp_decode_addr_reg printf PDECODE,"a%d",1,%d0 btst #13,%d2 jne 1f jsr fp_get_addr_reg move.l %a0,(FPD_FPIAR,FPDATA) jra fpc_movem_fin 1: move.l (FPD_FPIAR,FPDATA),%a0 jsr fp_put_addr_reg jra fpc_movem_fin fpc_indirect: fp_mode_addr_indirect jra fpc_do_movem fpc_postinc: fp_mode_addr_indirect_postinc jra fpc_do_movem fpc_predecr: fp_mode_addr_indirect_predec jra fpc_do_movem fpc_disp16: fp_mode_addr_indirect_disp16 jra fpc_do_movem fpc_extmode0: fp_mode_addr_indirect_extmode0 jra fpc_do_movem fpc_extmode1: fp_decode_addr_reg jmp ([0f:w,%pc,%d0*4]) .align 4 0: .long fpc_absolute_short, fpc_absolute_long .long fpc_disp16, fpc_extmode0 .long fpc_immediate, fp_ill .long fp_ill, fp_ill fpc_absolute_short: fp_mode_abs_short jra fpc_do_movem fpc_absolute_long: fp_mode_abs_long jra fpc_do_movem fpc_immediate: fp_get_pc %a0 lea (%a0,%d1.w*4),%a1 fp_put_pc %a1 printf PDECODE,"#imm" | jra fpc_do_movem #if 0 swap %d1 lsl.l #5,%d1 lea (FPD_FPCR,FPDATA),%a0 jra 3f 1: move.l %d0,(%a0) 2: addq.l #4,%a0 3: lsl.b #1,%d1 jcs 1b jne 2b jra fpc_movem_fin #endif fpc_do_movem: swap %d1 | get fpu register list lsl.l #5,%d1 lea (FPD_FPCR,FPDATA),%a1 1: btst #13,%d2 jne 4f | move register from memory into fpu jra 3f 1: printf PMOVEM,"(%p>%p)",2,%a0,%a1 getuser.l (%a0)+,%d0,fp_err_ua1,%a0 move.l %d0,(%a1) 2: addq.l #4,%a1 3: lsl.b #1,%d1 jcs 1b jne 2b jra fpc_movem_fin | move register from fpu into memory 1: printf PMOVEM,"(%p>%p)",2,%a1,%a0 move.l (%a1),%d0 putuser.l %d0,(%a0)+,fp_err_ua1,%a0 2: addq.l #4,%a1 4: lsl.b #1,%d1 jcs 1b jne 2b fpc_movem_fin: and.l #0x0000fff0,(FPD_FPCR,FPDATA) and.l #0x0ffffff8,(FPD_FPSR,FPDATA) move.l (FPD_FPCR,FPDATA),%d0 lsr.l #4,%d0 moveq #3,%d1 and.l %d0,%d1 move.w %d1,(FPD_RND,FPDATA) lsr.l #2,%d0 moveq #3,%d1 and.l %d0,%d1 move.w %d1,(FPD_PREC,FPDATA) printf PDECODE,"\n" #if 0 printf PMOVEM,"fpcr : %08x\n",1,FPDATA@(FPD_FPCR) printf PMOVEM,"fpsr : %08x\n",1,FPDATA@(FPD_FPSR) printf PMOVEM,"fpiar: %08x\n",1,FPDATA@(FPD_FPIAR) clr.l %d0 move.w (FPD_PREC,FPDATA),%d0 printf PMOVEM,"prec : %04x\n",1,%d0 move.w (FPD_RND,FPDATA),%d0 printf PMOVEM,"rnd : %04x\n",1,%d0 #endif jra fp_end |