projects / OpenSPARC-T2-SAM / blame
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| 920dae64 AT |
1 | # ========== Copyright Header Begin ========================================== |
| 2 | # | |
| 3 | # OpenSPARC T2 Processor File: SS_InstrFpop.py | |
| 4 | # Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 5 | # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
| 6 | # | |
| 7 | # The above named program is free software; you can redistribute it and/or | |
| 8 | # modify it under the terms of the GNU General Public | |
| 9 | # License version 2 as published by the Free Software Foundation. | |
| 10 | # | |
| 11 | # The above named program is distributed in the hope that it will be | |
| 12 | # useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | # General Public License for more details. | |
| 15 | # | |
| 16 | # You should have received a copy of the GNU General Public | |
| 17 | # License along with this work; if not, write to the Free Software | |
| 18 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 19 | # | |
| 20 | # ========== Copyright Header End ============================================ | |
| 21 | from SS_Instr import * | |
| 22 | ||
| 23 | #============================================================================ | |
| 24 | # SS_fpop base for the floating point operations | |
| 25 | #============================================================================ | |
| 26 | ||
| 27 | class SS_fpop(SS_InstrAsm): | |
| 28 | def __init__(self,opc): | |
| 29 | SS_InstrAsm.__init__(self,opc) | |
| 30 | self.opc = opc | |
| 31 | ||
| 32 | def fpop_init(self,file): | |
| 33 | self.s_code(file,'run_exe_') | |
| 34 | self.ld_sim(file,'%g5') | |
| 35 | self.st_fsr_cpu(file,'%fsr') | |
| 36 | self.ld_fsr_run(file,'%fsr') | |
| 37 | self.ld_gsr(file,'%g1') | |
| 38 | self.andcc(file,'%g5','F_FP_DISABLED','%g0') | |
| 39 | self.branch(file,'ne','%xcc','fpop_disabled_trap_fsr') | |
| 40 | self.rd_gsr(file,'%g5') | |
| 41 | self.wr_gsr(file,'%g1') | |
| 42 | ||
| 43 | def fpop_fini_d(self,file): | |
| 44 | self.branch(file,'a,a','%xcc','fpop_retl_d') | |
| 45 | self.nop(file) | |
| 46 | ||
| 47 | def fpop_fini_f(self,file): | |
| 48 | self.branch(file,'a,a','%xcc','fpop_retl_f') | |
| 49 | self.nop(file) | |
| 50 | ||
| 51 | def fpop_fini_cc_d(self,file,cc,ccr): | |
| 52 | global inv_rcond | |
| 53 | # brcc have 16bit offset only which is killing us, so for brcc we | |
| 54 | # do the opposite and branch over if not(cc) and ba,a to fpop_retl_d | |
| 55 | if cc[0] == 'r': | |
| 56 | self.branch(file,'r'+inv_rcond[cc[1:]]+',a','%'+ccr,'1f') | |
| 57 | self.nop(file) | |
| 58 | self.branch(file,'a,a','%xcc','fpop_retl_d') | |
| 59 | self.nop(file) | |
| 60 | file.write('1:\n') | |
| 61 | self.fpop_fini(file) | |
| 62 | else: | |
| 63 | self.branch(file,cc+',a','%'+ccr,'fpop_retl_d') | |
| 64 | self.nop(file) | |
| 65 | self.fpop_fini(file) | |
| 66 | ||
| 67 | def fpop_fini_cc_f(self,file,cc,ccr): | |
| 68 | global inv_rcond | |
| 69 | # brcc have 16bit offset only which is killing us, so for brcc we | |
| 70 | # do the opposite and branch over if not(cc) and ba,a to fpop_retl_d | |
| 71 | if cc[0] == 'r': | |
| 72 | self.branch(file,'r'+inv_rcond[cc[1:]]+',a','%'+ccr,'1f') | |
| 73 | self.nop(file) | |
| 74 | self.branch(file,'a,a','%xcc','fpop_retl_f') | |
| 75 | self.nop(file) | |
| 76 | file.write('1:\n') | |
| 77 | self.fpop_fini(file) | |
| 78 | else: | |
| 79 | self.branch(file,cc+',a','%'+ccr,'fpop_retl_f') | |
| 80 | self.nop(file) | |
| 81 | self.fpop_fini(file) | |
| 82 | ||
| 83 | def fpop_fini(self,file): | |
| 84 | self.branch(file,'a,a','%xcc','fpop_retl') | |
| 85 | self.nop(file) | |
| 86 | ||
| 87 | def gen_exe_tbl(self,file,mode): | |
| 88 | if mode == 'v8_run': | |
| 89 | mode = 'run' | |
| 90 | if mode == 'run' or mode == 'trc': | |
| 91 | file.write(' %s_exe_%s,\n' % (setup.product.lower(),self.name)) | |
| 92 | else: | |
| 93 | file.write(' %s_exe_%s,\n' % (mode,self.name)) | |
| 94 | ||
| 95 | ||
| 96 | #============================================================================ | |
| 97 | # SS_fp_f0f | |
| 98 | #============================================================================ | |
| 99 | ||
| 100 | class SS_fp_f0f(SS_fpop): | |
| 101 | def __init__(self,opc): | |
| 102 | SS_fpop.__init__(self,opc) | |
| 103 | ||
| 104 | def run_exe_c(self,file,product='run'): | |
| 105 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 106 | ||
| 107 | def run_dec_c(self,file): | |
| 108 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 109 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 110 | file.write(' if (o.get_rs1() != 0)\n') | |
| 111 | file.write(' return (s->trap)(pc,npc,s,i,SS_Trap::ILLEGAL_INSTRUCTION);\n') | |
| 112 | file.write(' else\n') | |
| 113 | file.write(' {\n') | |
| 114 | self.ill_ibe(file) | |
| 115 | self.dec_f0f(file,' ','idx_exe_'+self.opc) | |
| 116 | file.write(' }\n') | |
| 117 | self.c_code_end(file) | |
| 118 | ||
| 119 | def gen_exe_tbl(self,file,mode): | |
| 120 | if mode == 'trc': | |
| 121 | file.write(' trc_exe_f0f, /* '+self.name+' */\n') | |
| 122 | else: | |
| 123 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 124 | ||
| 125 | ||
| 126 | #============================================================================ | |
| 127 | # SS_fp_f0d | |
| 128 | #============================================================================ | |
| 129 | ||
| 130 | class SS_fp_f0d(SS_fpop): | |
| 131 | def __init__(self,opc): | |
| 132 | SS_fpop.__init__(self,opc) | |
| 133 | ||
| 134 | def run_exe_c(self,file,product='run'): | |
| 135 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 136 | ||
| 137 | def run_dec_c(self,file): | |
| 138 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 139 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 140 | file.write(' if (o.get_rs1() != 0)\n') | |
| 141 | file.write(' return (s->trap)(pc,npc,s,i,SS_Trap::ILLEGAL_INSTRUCTION);\n') | |
| 142 | file.write(' else\n') | |
| 143 | file.write(' {\n') | |
| 144 | self.ill_ibe(file) | |
| 145 | self.dec_f0d(file,' ','idx_exe_'+self.opc) | |
| 146 | file.write(' }\n') | |
| 147 | self.c_code_end(file) | |
| 148 | ||
| 149 | def gen_exe_tbl(self,file,mode): | |
| 150 | if mode == 'trc': | |
| 151 | file.write(' trc_exe_f0d, /* '+self.name+' */\n') | |
| 152 | else: | |
| 153 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 154 | ||
| 155 | ||
| 156 | #============================================================================ | |
| 157 | # SS_fp_d0d | |
| 158 | #============================================================================ | |
| 159 | ||
| 160 | class SS_fp_d0d(SS_fpop): | |
| 161 | def __init__(self,opc): | |
| 162 | SS_fpop.__init__(self,opc) | |
| 163 | ||
| 164 | def run_exe_c(self,file,product='run'): | |
| 165 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 166 | ||
| 167 | def run_dec_c(self,file): | |
| 168 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 169 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 170 | file.write(' if (o.get_rs1() != 0)\n') | |
| 171 | file.write(' return (s->trap)(pc,npc,s,i,SS_Trap::ILLEGAL_INSTRUCTION);\n') | |
| 172 | file.write(' else\n') | |
| 173 | file.write(' {\n') | |
| 174 | self.ill_ibe(file) | |
| 175 | self.dec_d0d(file,' ','idx_exe_'+self.opc) | |
| 176 | file.write(' }\n') | |
| 177 | self.c_code_end(file) | |
| 178 | ||
| 179 | def gen_exe_tbl(self,file,mode): | |
| 180 | if mode == 'trc': | |
| 181 | file.write(' trc_exe_d0d, /* '+self.name+' */\n') | |
| 182 | else: | |
| 183 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 184 | ||
| 185 | ||
| 186 | #============================================================================ | |
| 187 | # SS_fp_d0f | |
| 188 | #============================================================================ | |
| 189 | ||
| 190 | class SS_fp_d0f(SS_fpop): | |
| 191 | def __init__(self,opc): | |
| 192 | SS_fpop.__init__(self,opc) | |
| 193 | ||
| 194 | def run_exe_c(self,file,product='run'): | |
| 195 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 196 | ||
| 197 | def run_dec_c(self,file): | |
| 198 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 199 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 200 | file.write(' if (o.get_rs1() != 0)\n') | |
| 201 | file.write(' return (s->trap)(pc,npc,s,i,SS_Trap::ILLEGAL_INSTRUCTION);\n') | |
| 202 | file.write(' else\n') | |
| 203 | file.write(' {\n') | |
| 204 | self.ill_ibe(file) | |
| 205 | self.dec_d0f(file,' ','idx_exe_'+self.opc) | |
| 206 | file.write(' }\n') | |
| 207 | self.c_code_end(file) | |
| 208 | ||
| 209 | def gen_exe_tbl(self,file,mode): | |
| 210 | if mode == 'trc': | |
| 211 | file.write(' trc_exe_d0f, /* '+self.name+' */\n') | |
| 212 | else: | |
| 213 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 214 | ||
| 215 | ||
| 216 | #============================================================================ | |
| 217 | # SS_fp_fff | |
| 218 | #============================================================================ | |
| 219 | ||
| 220 | class SS_fp_fff(SS_fpop): | |
| 221 | def __init__(self,opc): | |
| 222 | SS_fpop.__init__(self,opc) | |
| 223 | ||
| 224 | def run_exe_c(self,file,product='run'): | |
| 225 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 226 | ||
| 227 | def run_dec_c(self,file): | |
| 228 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 229 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 230 | self.ill_ibe(file) | |
| 231 | self.dec_fff(file,'','idx_exe_'+self.opc) | |
| 232 | self.c_code_end(file) | |
| 233 | ||
| 234 | def gen_exe_tbl(self,file,mode): | |
| 235 | if mode == 'trc': | |
| 236 | file.write(' trc_exe_fff, /* '+self.name+' */\n') | |
| 237 | else: | |
| 238 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 239 | ||
| 240 | ||
| 241 | #============================================================================ | |
| 242 | # SS_fp_ddd | |
| 243 | #============================================================================ | |
| 244 | ||
| 245 | class SS_fp_ddd(SS_fpop): | |
| 246 | def __init__(self,opc): | |
| 247 | SS_fpop.__init__(self,opc) | |
| 248 | ||
| 249 | def run_exe_c(self,file,product='run'): | |
| 250 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 251 | ||
| 252 | def run_dec_c(self,file): | |
| 253 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 254 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 255 | self.ill_ibe(file) | |
| 256 | self.dec_ddd(file,'','idx_exe_'+self.opc) | |
| 257 | self.c_code_end(file) | |
| 258 | ||
| 259 | def gen_exe_tbl(self,file,mode): | |
| 260 | if mode == 'trc': | |
| 261 | file.write(' trc_exe_ddd, /* '+self.name+' */\n') | |
| 262 | else: | |
| 263 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 264 | ||
| 265 | ||
| 266 | #============================================================================ | |
| 267 | # SS_fp_dff | |
| 268 | #============================================================================ | |
| 269 | ||
| 270 | class SS_fp_dff(SS_fpop): | |
| 271 | def __init__(self,opc): | |
| 272 | SS_fpop.__init__(self,opc) | |
| 273 | ||
| 274 | def run_exe_c(self,file,product='run'): | |
| 275 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 276 | ||
| 277 | def run_dec_c(self,file): | |
| 278 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 279 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 280 | self.ill_ibe(file) | |
| 281 | self.dec_dff(file,'','idx_exe_'+self.opc) | |
| 282 | self.c_code_end(file) | |
| 283 | ||
| 284 | def gen_exe_tbl(self,file,mode): | |
| 285 | if mode == 'trc': | |
| 286 | file.write(' trc_exe_dff, /* '+self.name+' */\n') | |
| 287 | else: | |
| 288 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 289 | ||
| 290 | ||
| 291 | #============================================================================ | |
| 292 | # SS_fp_ffff | |
| 293 | #============================================================================ | |
| 294 | ||
| 295 | class SS_fp_ffff(SS_fpop): | |
| 296 | def __init__(self,opc): | |
| 297 | SS_fpop.__init__(self,opc) | |
| 298 | ||
| 299 | def run_exe_c(self,file,product='run'): | |
| 300 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 301 | ||
| 302 | def run_dec_c(self,file): | |
| 303 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 304 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 305 | self.ill_ibe(file) | |
| 306 | self.dec_ffff(file,'','idx_exe_'+self.opc) | |
| 307 | self.c_code_end(file) | |
| 308 | ||
| 309 | def gen_exe_tbl(self,file,mode): | |
| 310 | if mode == 'trc': | |
| 311 | file.write(' trc_exe_ffff, /* '+self.name+' */\n') | |
| 312 | else: | |
| 313 | SS_fpop.gen_exe_tbl(self,file,mode) | |
| 314 | ||
| 315 | ||
| 316 | #============================================================================ | |
| 317 | # SS_fp_dddd | |
| 318 | #============================================================================ | |
| 319 | ||
| 320 | class SS_fp_dddd(SS_fpop): | |
| 321 | def __init__(self,opc): | |
| 322 | SS_fpop.__init__(self,opc) | |
| 323 | ||
| 324 | def run_exe_c(self,file,product='run'): | |
| 325 | SS_fpop.run_exe_c(self,file,setup.product.lower()) | |
| 326 | ||
| 327 | def run_dec_c(self,file): | |
| 328 | self.c_code_dec_beg_name(file,'run_dec_'+self.opc) | |
| 329 | file.write(' i->flg = SS_Instr::NON_LSU;\n') | |
| 330 | self.ill_ibe(file) | |
| 331 | self.dec_dddd(file,'','idx_exe_'+self.opc) | |
| 332 | self.c_code_end(file) | |
| 333 | ||
| 334 | def gen_exe_tbl(self,file,mode): | |
| 335 | if mode == 'trc': | |
| 336 | file.write(' trc_exe_dddd, /* '+self.name+' */\n') | |
| 337 | else: | |
| 338 | SS_fpop.gen_exe_tbl(self,file,mode) |