Mercurial > hg > CbC > old > device
annotate mc-code-powerpc.c @ 127:eb4d8975926c
Intel float fix
| author | kono |
|---|---|
| date | Tue, 01 Apr 2003 10:31:40 +0900 |
| parents | 1d1612fe705a |
| children | d497c39add36 |
| rev | line source |
|---|---|
| 89 | 1 /* Micro-C Code Generatation Part for Power PC (Mac OS X) */ |
| 2 /* $Id$ */ | |
| 3 | |
| 4 #define EXTERN extern | |
| 5 #include "mc.h" | |
| 93 | 6 #include "mc-code.h" |
| 89 | 7 #include "mc-codegen.h" |
| 8 | |
| 9 #define TEXT_EMIT_MODE 0 | |
| 10 #define DATA_EMIT_MODE 1 | |
| 11 #define RODATA_EMIT_MODE 2 | |
| 12 | |
| 93 | 13 static void data_mode(char *name); |
| 14 static void init_ptr_cache(); | |
| 15 static void ld_indexx(int byte, int n, int xreg); | |
| 16 static void local_table(void); | |
| 17 static void shift(char *op, int reg); | |
| 119 | 18 static int struct_push(int e4,int t,int arg); |
| 93 | 19 |
| 89 | 20 static int output_mode = TEXT_EMIT_MODE; |
| 21 static int data_alignment = 0; | |
| 22 | |
| 23 static int code_disp_label; | |
| 111 | 24 static int code_setup; |
| 116 | 25 static int r1_offset_label; |
| 26 static int lvar_offset_label; | |
| 27 | |
| 28 static int reg_save; | |
| 29 static int freg_save; | |
| 30 | |
| 31 int size_of_int = 4; | |
| 32 int size_of_float = 4; | |
| 33 int size_of_double = 8; | |
| 34 int size_of_longlong = 8; | |
| 35 int endian = 1; | |
| 111 | 36 |
| 89 | 37 |
| 119 | 38 #define REG_fp 1 |
| 39 #define REG_sp 30 | |
| 40 #define REG_VAR_BASE 29 | |
| 41 #define REG_VAR_MIN 22 | |
| 42 #define MIN_TMP_REG 3 | |
| 43 #define MAX_TMP_REG 15 | |
| 44 | |
| 45 #define PTRC_REG 3 | |
| 46 | |
| 47 #define FREG_VAR_BASE 31 | |
| 48 #define FREG_VAR_MIN 24 | |
| 49 #define MIN_TMP_FREG 1 | |
| 50 #define MAX_TMP_FREG 15 | |
| 51 | |
| 52 #define RET_REGISTER 3 | |
| 53 #define RET_FREGISTER 1 | |
| 54 | |
| 55 int MAX_REGISTER=30; /* PowerPCのレジスタを10個まで使う*/ | |
| 122 | 56 int MAX_FREGISTER=31; |
| 119 | 57 #define REAL_MAX_REGISTER 32 /* PowerPCのレジスタが32ということ*/ |
| 58 #define REAL_MAX_FREGISTER 32 /* PowerPCのレジスタが32ということ*/ | |
| 59 | |
| 122 | 60 int MAX_INPUT_REGISTER_VAR = 11-MIN_TMP_REG; |
| 61 int MAX_CODE_INPUT_REGISTER_VAR = 11-MIN_TMP_REG; | |
| 62 int MAX_INPUT_DREGISTER_VAR = 14-MIN_TMP_FREG; | |
| 63 int MAX_CODE_INPUT_DREGISTER_VAR = 14-MIN_TMP_FREG; | |
| 119 | 64 |
| 65 #define CREG_REGISTER MAX_TMP_REG | |
| 66 #define FREG_FREGISTER MAX_TMP_FREG | |
| 67 | |
| 68 int powerpc_regs[REAL_MAX_REGISTER]; | |
| 69 int powerpc_regv[REAL_MAX_REGISTER]; | |
| 70 | |
| 71 int *regv = powerpc_regv; | |
| 72 int *regs = powerpc_regs; | |
| 73 | |
| 74 int powerpc_fregs[REAL_MAX_FREGISTER]; | |
| 75 int powerpc_fregv[REAL_MAX_FREGISTER]; | |
| 76 | |
| 77 int *fregv = powerpc_fregv; | |
| 78 int *fregs = powerpc_fregs; | |
| 79 | |
| 80 static int max_reg_var, max_freg_var; | |
| 81 static int cond_reg=-1,cond_freg=-1; | |
| 82 | |
| 83 static char *reg_name[] = { | |
| 84 "r0","r1","r2","r3","r4","r5","r6","r7","r8","r9", | |
| 85 "r10","r11","r12","r13","r14","r15","r16","r17","r18","r19", | |
| 86 "r20","r21","r22","r23","r24","r25","r26","r27","r28","r29", | |
| 87 "r30","r31" | |
| 88 }; | |
| 89 | |
| 90 static char *freg_name[] = { | |
| 91 "f0","f1","f2","f3","f4","f5","f6","f7","f8","f9", | |
| 92 "f10","f11","f12","f13","f14","f15","f16","f17","f18","f19", | |
| 93 "f20","f21","f22","f23","f24","f25","f26","f27","f28","f29", | |
| 94 "f30","f31" | |
| 95 }; | |
| 96 | |
| 97 #define register_name(i) reg_name[i] | |
| 98 #define fregister_name(i) freg_name[i] | |
| 99 | |
| 100 static | |
| 101 NMTBL float_zero = {"_float_zero",STATIC,FLOAT,0}; | |
| 102 static | |
| 103 NMTBL float_one = {"_float_one",STATIC,FLOAT,0}; | |
| 104 | |
| 105 | |
| 106 static char * fload(int d); | |
| 107 static int code_d1(double d); | |
| 108 static int code_d2(double d); | |
| 109 static void code_save_stacks(); | |
| 110 static void code_save_input_registers(); | |
| 111 static void clear_ptr_cache_reg(int r); | |
| 112 static void set_creg(int,int); | |
| 113 static void set_freg(int,int); | |
| 114 | |
| 115 int max_func_args; | |
| 121 | 116 int my_func_args; |
| 119 | 117 #define ARG_LVAR_OFFSET 0x10000000 |
| 118 | |
| 126 | 119 /* |
| 89 | 120 |
| 97 | 121 r0 return value etc. |
| 122 r3-r10 input register | |
| 126 | 123 r22-r29 saved register variable (input register for code segement) |
| 89 | 124 r30 stack pointer |
| 125 r31 0 | |
| 126 r1 frame pointer | |
| 97 | 127 |
| 128 f0 return value etc. | |
| 129 f1-r8 input register | |
| 130 f24-f31 saved register variable | |
| 116 | 131 |
| 127 | 132 function call stack frame |
| 116 | 133 <------r1_offset------------------------------> |
| 134 <------------lvar_offset-------> | |
| 135 r+ +------------+---+---------------+----------+--------------+----+ - | |
| 122 | 136 callee arg xx register save local caller arg xx |
| 116 | 137 reg_save disp max_func_args*size_of_int |
| 119 | 138 lvar>0 lvar<0 lvar>0x1000 0000 |
| 127 | 139 |
| 140 code segment stack frame | |
| 141 | |
| 142 * gotoを呼び出した関数のr1 ! r1(goto前のr1) | |
| 143 # * r30 <---------------r1_offset---------------> r1 | |
| 144 r+ +----------+--+----------+----------------+-----------+----------+----+ | |
| 145 cousin arg xx reg save !callee arg !code local caller arg xx | |
| 146 r20-r29 lvar>0 lvar<0 lvar>0x1000 000 | |
| 147 f20-f31 <-my_func_args--><--disp-----><-max_func_arg-> | |
| 148 *size_of_int *size_of_int | |
| 149 | |
| 89 | 150 */ |
| 122 | 151 int arg_offset = 24; int arg_offset1 = 24; int disp_offset = -12; |
| 152 #define func_disp_offset 60 | |
| 153 #define r1_offset func_disp_offset+12 | |
| 121 | 154 int code_disp_offset = 0; int jump_offset = 0; |
| 155 #define CODE_LVAR l+code_disp_offset | |
| 156 #define FUNC_LVAR l+disp_offset | |
| 157 #define CALLER_ARG (l-ARG_LVAR_OFFSET)+arg_offset1 | |
| 158 #define CALLEE_ARG l+arg_offset | |
| 89 | 159 |
| 116 | 160 void |
| 161 code_offset_set() | |
| 162 { | |
| 126 | 163 #if 0 |
| 121 | 164 int l; |
| 126 | 165 #endif |
| 121 | 166 int lvar_offsetv = -disp+max_func_args*size_of_int+func_disp_offset; |
| 167 int r1_offsetv = -disp+max_func_args*size_of_int-reg_save+r1_offset; | |
| 168 printf(".set L_%d,%d\n",lvar_offset_label,lvar_offsetv); | |
| 169 printf(".set L_%d,%d\n",r1_offset_label,r1_offsetv); | |
| 126 | 170 #if 0 |
| 121 | 171 printf("# function %s\n",fnptr->nm); |
| 172 l = ARG_LVAR_OFFSET; | |
| 173 printf("# offset call0\t%d\n",CALLER_ARG); | |
| 174 l = ARG_LVAR_OFFSET+max_func_args*size_of_int; | |
| 122 | 175 printf("# offset calln\t%d %d\n",CALLER_ARG,max_func_args*size_of_int); |
| 121 | 176 l = disp; |
| 122 | 177 printf("# offset lvarn\t%d %d\n",FUNC_LVAR+lvar_offsetv,disp); |
| 121 | 178 l = 0; |
| 179 printf("# offset lvar0\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 180 l = -reg_save; | |
| 181 printf("# offset regs\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 182 printf("# offset r1off\t%d\n",r1_offsetv); | |
| 183 l = 0; | |
| 184 printf("# offset carg0\t%d\n",CALLEE_ARG+r1_offsetv); | |
| 185 l = my_func_args; | |
| 122 | 186 printf("# offset cargn\t%d %d\n",CALLEE_ARG+r1_offsetv,my_func_args); |
| 126 | 187 #endif |
| 116 | 188 } |
| 111 | 189 |
| 119 | 190 |
| 191 static void | |
| 192 lvar8(int l) | |
| 116 | 193 { |
| 194 if (fnptr->sc==CODE) { | |
| 126 | 195 printf("lo16(%d)(r30)\n",CODE_LVAR); |
| 119 | 196 } else if (l<0) { /* local variable */ |
| 197 printf("lo16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 198 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 199 printf("lo16(%d)(r30)\n",CALLER_ARG); |
| 200 } else { /* callee's arguments */ | |
| 121 | 201 printf("lo16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 116 | 202 } |
| 203 } | |
| 111 | 204 |
| 119 | 205 /* if size of local variables / input variables is more then 64k, |
| 206 lo16 does not work. We have to use ha16 also. But we can't know | |
| 207 the exact size in one path compile. We may safely use lvar16ha | |
| 208 if disp or max_func_args > 32k. Of course this is reduantant for | |
| 209 smaller offset. But who cares who use very large local variables? | |
| 210 */ | |
| 96 | 211 |
| 119 | 212 #define LARGE_LVAR (disp<-32765||max_func_args>32765) |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
213 |
| 119 | 214 static void |
| 215 lvar16ha(int l) | |
| 216 { | |
| 217 if (fnptr->sc==CODE) { | |
| 126 | 218 printf("la r0,ha16(%d)(r30)\n",CODE_LVAR); |
| 119 | 219 } else if (l<0) { /* local variable */ |
| 220 printf("la r0,ha16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 221 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 222 if (CALLER_ARG>32765) |
| 223 printf("la r0,ha16(%d)(r30)\n",CALLER_ARG); | |
| 224 } else { /* callee's arguments */ | |
| 121 | 225 printf("la r0,ha16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 226 } |
| 227 } | |
| 95 | 228 |
| 119 | 229 static void |
| 230 lvar16lo(int l) | |
| 231 { | |
| 232 if (fnptr->sc==CODE) { | |
| 126 | 233 printf("lo16(%d)(r0)\n",CODE_LVAR); |
| 119 | 234 } else if (l<0) { /* local variable */ |
| 235 printf("lo16(%d+L_%d)(r0)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 236 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 237 if (CALLER_ARG>32765) |
| 238 printf("lo16(%d)(r0)\n",CALLER_ARG); | |
| 239 else | |
| 240 printf("lo16(%d)(r30)\n",CALLER_ARG); | |
| 241 } else { /* callee's arguments */ | |
| 121 | 242 printf("lo16(%d+L_%d)(r0)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 243 } |
| 244 } | |
| 89 | 245 |
| 119 | 246 #define lvar_intro(i) if (LARGE_LVAR) lvar16ha(i) |
| 247 | |
| 248 #define lvar(i) if (LARGE_LVAR) lvar16lo(i); else lvar8(i) | |
| 89 | 249 |
| 119 | 250 void |
| 251 code_lvar(int e2,int creg) { | |
| 252 lvar_intro(e2); | |
| 253 printf("\tla %s,",register_name(creg)); | |
| 254 lvar(e2); | |
| 255 regv[creg]=1; | |
| 256 } | |
| 95 | 257 |
| 89 | 258 void |
| 259 code_init(void) | |
| 260 { | |
| 102 | 261 init_ptr_cache(); |
| 89 | 262 } |
| 263 | |
| 264 void | |
| 265 gexpr_code_init(void){ | |
| 266 regv[creg]=0; | |
| 96 | 267 fregv[freg]=0; |
| 268 } | |
| 269 | |
| 89 | 270 |
| 109 | 271 void |
| 272 code_arg_register() | |
| 273 { | |
| 126 | 274 if (is_function(fnptr)) |
| 275 code_save_input_registers(); | |
| 109 | 276 } |
| 277 | |
| 89 | 278 int |
| 279 get_register(void) | |
| 280 { /* 使われていないレジスタを調べる */ | |
| 120 | 281 int i,reg; |
| 96 | 282 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { |
| 102 | 283 if (regs[i]) continue; /* 使われている */ |
| 284 regs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 285 return i; /* その場所を表す番号を返す */ | |
| 286 } | |
| 287 /* INPUT_REG か PTR_CACHE をつぶす */ | |
| 288 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { | |
| 119 | 289 if (regs[i]==PTRC_REG) { |
| 98 | 290 clear_ptr_cache_reg(i); |
| 96 | 291 } else |
| 292 continue; | |
| 293 regs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 294 return i; /* その場所を表す番号を返す */ | |
| 295 } | |
| 296 /* search register stack */ | |
| 297 for(i=0;i<reg_sp;i++) { | |
| 120 | 298 if ((reg=reg_stack[i])>=0) { |
| 96 | 299 code_assign_lvar( |
| 120 | 300 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 96 | 301 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 302 return reg; |
| 89 | 303 } |
| 304 } | |
| 96 | 305 /* 空いている場所がないなら、エラー (いったい誰が使ってるの?) */ |
| 102 | 306 error(-1); return creg; |
| 89 | 307 } |
| 308 | |
| 93 | 309 int |
| 310 pop_register(void) | |
| 311 { /* レジスタから値を取り出す */ | |
| 312 return reg_stack[--reg_sp]; | |
| 313 } | |
| 314 | |
| 96 | 315 int |
| 97 | 316 get_fregister(void) |
| 96 | 317 { /* 使われていないレジスタを調べる */ |
| 103 | 318 int i,reg; |
| 96 | 319 for(i=MAX_TMP_FREG;i>MIN_TMP_FREG;i--) { |
| 102 | 320 if (fregs[i]) continue; /* 使われている */ |
| 321 fregs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 322 return i; /* その場所を表す番号を返す */ | |
| 323 } | |
| 96 | 324 /* search register stack */ |
| 325 for(i=0;i<freg_sp;i++) { | |
| 103 | 326 if ((reg=freg_stack[i])>=0) { |
| 96 | 327 code_dassign_lvar( |
| 119 | 328 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 96 | 329 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 330 return reg; |
| 96 | 331 } |
| 332 } | |
| 333 /* 空いている場所がないなら、エラー (いったい誰が使ってるの?) */ | |
| 98 | 334 error(REG_ERR); return freg; |
| 96 | 335 } |
| 336 | |
| 337 | |
| 338 int | |
| 97 | 339 pop_fregister(void) |
| 96 | 340 { /* レジスタから値を取り出す */ |
| 341 return freg_stack[--freg_sp]; | |
| 342 } | |
| 343 | |
| 93 | 344 void |
| 345 emit_pop_free(int xreg) | |
| 346 { | |
| 103 | 347 if (xreg>=0) |
| 348 free_register(xreg); | |
| 93 | 349 } |
| 350 | |
| 89 | 351 void |
| 352 free_register(int i) { /* いらなくなったレジスタを開放 */ | |
| 102 | 353 if (i<0||MAX_REGISTER<i) error(-1); |
| 89 | 354 regv[i]=regs[i]=0; |
| 355 } | |
| 356 | |
| 96 | 357 void |
| 97 | 358 free_fregister(int i) { /* いらなくなったレジスタを開放 */ |
| 102 | 359 if (i<0||MAX_FREGISTER<i) error(-1); |
| 96 | 360 fregv[i]=fregs[i]=0; |
| 361 } | |
| 362 | |
| 89 | 363 int |
| 126 | 364 get_input_fregister_var(int i,NMTBL *n,int is_code) |
| 99 | 365 { |
| 126 | 366 if (is_code) { |
| 367 if(!(i<REG_VAR_BASE-REG_VAR_MIN)) return 0; | |
| 368 i = REG_VAR_BASE-i; | |
| 369 } else { | |
| 370 if (i<0||MAX_FREGISTER<i+MIN_TMP_FREG) return 0; | |
| 371 return list3(DREGISTER,i+MIN_TMP_FREG,(int)n); | |
| 372 i = i+MIN_TMP_FREG; | |
| 373 } | |
| 374 return list3(DREGISTER,i,(int)n); | |
| 99 | 375 } |
| 376 | |
| 377 int | |
| 126 | 378 get_input_register_var(int i,NMTBL *n,int is_code) |
| 99 | 379 { |
| 126 | 380 if (is_code) { |
| 381 if(!(i<FREG_VAR_BASE-FREG_VAR_MIN)) return 0; | |
| 382 i = REG_VAR_BASE-i; | |
| 383 } else { | |
| 384 if (i<0||MAX_REGISTER<i+MIN_TMP_REG) return 0; | |
| 385 i = i+MIN_TMP_REG; | |
| 386 } | |
| 387 return list3(REGISTER,i,(int)n); | |
| 99 | 388 } |
| 389 | |
| 390 int | |
| 103 | 391 free_register_count(void) |
| 392 { | |
| 393 int i,count,fcount; | |
| 394 fcount = count = 0; | |
| 395 for(i=0;i<MAX_REGISTER;i++) { | |
| 396 if (! regs[i] && ! regv[i]) count++; | |
| 397 } | |
| 398 for(i=0;i<MAX_FREGISTER;i++) { | |
| 399 if (! fregs[i] && ! fregv[i]) fcount++; | |
| 400 } | |
| 401 fprintf(stderr,"# free reg %d freg %d\n",count,fcount); | |
| 402 return count+fcount; | |
| 403 } | |
| 404 | |
| 405 int | |
| 89 | 406 register_full(void) |
| 407 { | |
| 408 int i; | |
| 409 for(i=0;i<MAX_REGISTER;i++) { | |
| 410 if (! regs[i]) { | |
| 411 return 0; | |
| 412 } | |
| 413 } | |
| 414 return 1; | |
| 415 } | |
| 416 | |
| 417 void | |
| 418 free_all_register(void) | |
| 419 { | |
| 420 int i; | |
| 97 | 421 for(i=0;i<MAX_REGISTER;i++) { regs[i]=0; regv[i]=0; } |
| 422 for(i=0;i<MAX_FREGISTER;i++) { fregs[i]=0; fregv[i]=0; } | |
| 89 | 423 creg = get_register(); |
| 97 | 424 freg = get_fregister(); |
| 107 | 425 set_creg(CREG_REGISTER,0); |
| 426 set_freg(FREG_FREGISTER,0); | |
| 89 | 427 return; |
| 428 } | |
| 429 | |
| 430 void | |
| 431 register_usage(char *s) | |
| 432 { | |
| 126 | 433 #if 0 |
| 89 | 434 int i; |
| 126 | 435 #endif |
| 89 | 436 if (chk) return; |
| 109 | 437 if (!lsrc) return; |
| 89 | 438 printf("# %d: %s:",lineno,s); |
| 126 | 439 printf(" creg=%s fgreg=%s",register_name(creg),fregister_name(freg)); |
| 101 | 440 #if 0 |
| 126 | 441 printf("\n# regs:"); |
| 442 for(i=0;i<MAX_REGISTER;i++) { printf("%d",regv[i]); } | |
| 101 | 443 printf(":"); |
| 126 | 444 for(i=0;i<MAX_REGISTER;i++) { printf("%d",regs[i]); } |
| 101 | 445 printf("\n# freg:"); |
| 126 | 446 for(i=0;i<MAX_FREGISTER;i++) { printf("%d",fregs[i]); } |
| 93 | 447 printf(" regs_stack",register_name(creg),register_name(dreg)); |
| 89 | 448 for(i=reg_sp;i>=0;i--) { |
| 449 if(reg_stack[i]>=0) | |
| 450 printf(" %s",register_name(reg_stack[i],0)); | |
| 451 } | |
| 452 #endif | |
| 453 printf("\n"); | |
| 454 } | |
| 455 | |
| 456 void | |
| 457 gexpr_init(void) | |
| 458 { | |
| 459 while(reg_sp > 0) { | |
| 460 free_register(reg_stack[--reg_sp]); | |
| 461 } | |
| 108 | 462 if (cond_freg!=-1) { |
| 463 if(car(cond_freg)==DREGISTER) free_fregister(cadr(cond_freg)); | |
| 464 cond_freg=-1; | |
| 465 } | |
| 466 if (cond_reg!=-1) { | |
| 467 if(car(cond_reg)==REGISTER) free_register(cadr(cond_reg)); | |
| 468 cond_reg=-1; | |
| 469 } | |
| 89 | 470 text_mode(); |
| 471 gexpr_code_init(); | |
| 472 register_usage("gexpr_init"); | |
| 473 } | |
| 474 | |
| 475 | |
| 476 void | |
| 477 emit_init(void) | |
| 478 { | |
| 479 free_all_register(); | |
| 110 | 480 max_reg_var=-1; max_freg_var=-1; |
| 89 | 481 reg_sp = 0; |
| 123 | 482 freg_sp = 0; |
| 89 | 483 text_mode(); |
| 484 } | |
| 485 | |
| 486 int | |
| 487 register_var(int r) { | |
| 99 | 488 return r; |
| 89 | 489 } |
| 490 | |
| 97 | 491 |
| 89 | 492 int |
| 105 | 493 get_register_var(NMTBL *n) |
| 89 | 494 { |
| 495 int i; | |
| 99 | 496 for(i=0;i<REG_VAR_BASE-REG_VAR_MIN;i++) { |
| 96 | 497 if (! regs[REG_VAR_BASE-i]) { /* 使われていないなら */ |
| 498 regs[REG_VAR_BASE-i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 93 | 499 regv[REG_VAR_BASE-i]=0; |
| 97 | 500 if (i>max_reg_var) max_reg_var=i; |
| 122 | 501 /* その場所を表す番号を返す */ |
| 502 return list3(REGISTER,REG_VAR_BASE-i,(int)n); | |
| 96 | 503 } |
| 504 } | |
| 104 | 505 return list2(LVAR,new_lvar(size_of_int)); |
| 96 | 506 } |
| 507 | |
| 508 int | |
| 97 | 509 fregister_var(int r) { |
| 99 | 510 return r; |
| 96 | 511 } |
| 512 | |
| 513 int | |
| 105 | 514 get_fregister_var(NMTBL *n) |
| 96 | 515 { |
| 516 int i; | |
| 99 | 517 for(i=0;i<FREG_VAR_BASE-REG_VAR_MIN;i++) { |
| 96 | 518 if (! regs[FREG_VAR_BASE-i]) { /* 使われていないなら */ |
| 105 | 519 regs[FREG_VAR_BASE-i]=USING_REG; /*そのレジスタを使うことを宣言し*/ |
| 96 | 520 regv[FREG_VAR_BASE-i]=0; |
| 97 | 521 if (i>max_freg_var) max_freg_var=i; |
| 122 | 522 /* その場所を表す番号を返す */ |
| 523 return list3(DREGISTER,FREG_VAR_BASE-i,(int)n); | |
| 89 | 524 } |
| 525 } | |
| 104 | 526 return list2(LVAR,new_lvar(size_of_double)); |
| 89 | 527 } |
| 528 | |
| 529 void | |
| 107 | 530 emit_push() |
| 89 | 531 { |
| 532 int new_reg; | |
| 102 | 533 if (reg_sp>MAX_MAX) error(-1); |
| 89 | 534 new_reg = get_register(); |
| 97 | 535 reg_stack[reg_sp++] = creg; /* push するかわりにレジスタを使う */ |
| 536 creg = new_reg; | |
| 537 regv[creg]=1; | |
| 89 | 538 } |
| 539 | |
| 540 int | |
| 93 | 541 emit_pop(int type) |
| 89 | 542 { |
| 112 | 543 int xreg,reg; |
| 97 | 544 xreg=pop_register(); |
| 545 if (xreg<= -REG_LVAR_OFFSET) { | |
| 112 | 546 reg = get_register(); |
| 119 | 547 code_rlvar(REG_LVAR_OFFSET+xreg,reg); |
| 117 | 548 free_lvar(REG_LVAR_OFFSET+xreg); |
| 112 | 549 xreg = reg; |
| 89 | 550 regv[xreg]=1; |
| 97 | 551 } |
| 89 | 552 return xreg; |
| 553 } | |
| 554 | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
555 static int code_base; |
| 89 | 556 |
| 557 #define MAX_PTR_CACHE 10 | |
| 558 | |
| 559 int ptr_cache=0; | |
| 560 | |
| 93 | 561 void |
| 90 | 562 init_ptr_cache() |
| 563 { | |
| 564 int i; | |
| 565 for(i=0;i<MAX_PTR_CACHE;i++) { | |
| 566 ptr_cache=glist3(0,ptr_cache,0); | |
| 567 } | |
| 568 } | |
| 569 | |
| 95 | 570 void |
| 96 | 571 clear_ptr_cache_reg(int r) |
| 572 { | |
| 573 int ptcptr=ptr_cache; | |
| 574 while(ptcptr) { | |
| 575 if(car(ptcptr)&&caddr(ptcptr)==r) { | |
| 576 car(ptcptr)=0; | |
| 577 caddr(ptcptr)=0; | |
| 102 | 578 free_register(r); |
| 98 | 579 return; |
| 96 | 580 } |
| 581 ptcptr=cadr(ptcptr); | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 void | |
| 89 | 586 clear_ptr_cache() |
| 587 { | |
| 588 int ptcptr=ptr_cache; | |
| 589 while(ptcptr) { | |
| 590 if(car(ptcptr)) | |
| 591 free_register(caddr(ptcptr)); | |
| 592 car(ptcptr)=0; | |
| 593 caddr(ptcptr)=0; | |
| 594 ptcptr=cadr(ptcptr); | |
| 595 } | |
| 596 } | |
| 597 | |
| 598 | |
| 599 int | |
| 109 | 600 get_ptr_cache(NMTBL *nptr) |
| 89 | 601 { |
| 602 int r; | |
| 603 int ptcptr=ptr_cache; | |
| 109 | 604 int g = (int)nptr; |
| 89 | 605 int p,p1; |
| 95 | 606 char *rrn; |
| 89 | 607 |
| 127 | 608 p1 = ptcptr; p = cadr(p1); /* unnecesary, if ptcptr is initialized */ |
| 89 | 609 while(ptcptr) { |
| 610 if(car(ptcptr)==g) return caddr(ptcptr); | |
| 611 p1=p; p=ptcptr; | |
| 612 ptcptr=cadr(ptcptr); | |
| 613 } | |
| 614 cadr(p1)=0; /* remove the last one */ | |
| 615 cadr(p) = ptr_cache; /* connect current queue to the last one */ | |
| 616 ptr_cache = p; /* now the last one is the top */ | |
| 617 if (!caddr(p)) { | |
| 96 | 618 if((r=get_register())) { |
| 619 caddr(p)=r; regs[r]=PTRC_REG; | |
| 127 | 620 } else { |
| 621 error(-1); | |
| 96 | 622 r=creg; /* this can't happen */ |
| 127 | 623 } |
| 102 | 624 car(p)=g; |
| 127 | 625 } else { |
| 626 r = caddr(p); | |
| 89 | 627 } |
| 628 rrn = register_name(r); | |
| 109 | 629 if (nptr->sc==STATIC) { |
| 630 printf("\taddis %s,r31,ha16(_%s-L_%d)\n", | |
| 631 rrn,nptr->nm,code_base); | |
| 632 printf("\tla %s,lo16(_%s-L_%d)(%s)\n", | |
| 633 rrn,nptr->nm,code_base,rrn); | |
| 634 } else { | |
| 635 printf("\taddis %s,r31,ha16(L_%s$non_lazy_ptr-L_%d)\n", | |
| 636 rrn,nptr->nm,code_base); | |
| 637 printf("\tlwz %s,lo16(L_%s$non_lazy_ptr-L_%d)(%s)\n", | |
| 638 rrn,nptr->nm,code_base,rrn); | |
| 639 } | |
| 89 | 640 return r; |
| 641 } | |
| 642 | |
| 643 void | |
| 92 | 644 code_label(int labelno) |
| 645 { | |
| 646 clear_ptr_cache(); | |
| 102 | 647 printf("L_%d:\n",labelno); |
| 92 | 648 } |
| 649 | |
| 650 void | |
| 107 | 651 code_gvar(int e1,int creg) { |
| 89 | 652 int r; |
| 109 | 653 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 89 | 654 if(r!=creg) |
| 655 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); | |
| 107 | 656 regv[creg]=1; |
| 89 | 657 return; |
| 658 } | |
| 659 | |
| 660 void | |
| 107 | 661 code_rgvar(int e1,int creg) { |
| 108 | 662 printf("\tlwz %s,0(%s)\n",register_name(creg), |
| 109 | 663 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 107 | 664 regv[creg]=1; |
| 89 | 665 } |
| 666 | |
| 667 void | |
| 107 | 668 code_crgvar(int e1,int creg){ |
| 669 char *crn = register_name(creg); | |
| 108 | 670 printf("\tlbz %s,0(%s)\n",crn, |
| 109 | 671 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 107 | 672 printf("\textsb %s,%s\n",crn,crn); |
| 673 regv[creg]=1; | |
| 89 | 674 } |
| 675 | |
| 676 | |
| 677 void | |
| 107 | 678 code_register(int e2,int creg) { |
| 90 | 679 if (creg!=e2) |
| 680 printf("\tmr %s,%s\n",register_name(creg),register_name(e2)); | |
| 107 | 681 regv[creg]=1; |
| 89 | 682 } |
| 683 | |
| 684 | |
| 685 void | |
| 95 | 686 code_rlvar(int e2,int reg) { |
| 119 | 687 lvar_intro(e2); |
| 688 printf("\tlwz %s,",register_name(reg)); | |
| 689 lvar(e2); | |
| 107 | 690 regv[creg]=1; |
| 89 | 691 } |
| 692 | |
| 693 | |
| 694 void | |
| 95 | 695 code_crlvar(int e2,int reg) { |
| 119 | 696 lvar_intro(e2); |
| 697 printf("\tlbz %s,",register_name(reg)); | |
| 698 lvar(e2); | |
| 95 | 699 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); |
| 107 | 700 regv[reg]=1; |
| 89 | 701 } |
| 702 | |
| 703 | |
| 704 void | |
| 109 | 705 code_fname(NMTBL *n,int creg) { |
| 89 | 706 int r; |
| 109 | 707 r = get_ptr_cache(n); |
| 89 | 708 if(r!=creg) |
| 95 | 709 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); |
| 107 | 710 regv[creg]=1; |
| 89 | 711 return; |
| 712 } | |
| 713 | |
| 714 | |
| 715 void | |
| 107 | 716 code_const(int e2,int creg) { |
| 89 | 717 char *crn = register_name(creg); |
| 718 if (-32768<e2&&e2<32768) | |
| 719 printf("\tli %s,%d\n",crn,e2); | |
| 720 else { | |
| 721 printf("\tlis %s,ha16(%d)\n",crn,e2); | |
| 722 printf("\taddi %s,%s,lo16(%d)\n",crn,crn,e2); | |
| 723 } | |
| 107 | 724 regv[creg]=1; |
| 89 | 725 } |
| 726 | |
| 727 | |
| 728 void | |
| 107 | 729 code_neg(int creg) { |
| 93 | 730 printf("\tneg %s,%s\n", register_name(creg), register_name(creg)); |
| 89 | 731 } |
| 732 | |
| 733 | |
| 734 void | |
| 107 | 735 code_not(int creg) { |
| 89 | 736 printf("\tnor %s,%s,%s\n", |
| 737 register_name(creg), register_name(creg),register_name(creg)); | |
| 738 } | |
| 739 | |
| 740 | |
| 741 void | |
| 107 | 742 code_lnot(int creg) { |
| 89 | 743 printf("\tsubfic r0,%s,0\n", register_name(creg)); |
| 744 printf("\tadde %s,r0,%s\n", register_name(creg),register_name(creg)); | |
| 745 } | |
| 746 | |
| 747 void | |
| 107 | 748 code_preinc(int e1,int e2,int reg) { |
| 89 | 749 char *xrn,*drn; |
| 750 int i,dreg; | |
| 751 if (car(e2)==REGISTER) { | |
| 95 | 752 printf("\taddi %s,%s,%d\n", |
| 753 register_name(cadr(e2)),register_name(cadr(e2)), caddr(e1)); | |
| 118 | 754 if (cadr(reg)!=e2) |
| 755 printf("\tmr %s,%s\n",register_name(cadr(reg)),register_name(e2)); | |
| 107 | 756 regv[reg]=1; |
| 89 | 757 return; |
| 758 } | |
| 759 g_expr(e2); | |
| 760 xrn = register_name(creg); | |
| 761 dreg=get_register(); if (!dreg) error(-1); | |
| 762 drn = register_name(dreg); | |
| 108 | 763 printf("\tlwz %s,0(%s)\n",drn,xrn); |
| 89 | 764 printf("\taddi %s,%s,%d\n",drn,drn,caddr(e1)); |
| 108 | 765 printf("\tstw %s,0(%s)\n",drn,xrn); |
| 89 | 766 i=creg;creg=dreg;dreg=i; |
| 107 | 767 regv[creg]=1; |
| 89 | 768 free_register(dreg); |
| 769 } | |
| 770 | |
| 771 | |
| 772 void | |
| 107 | 773 code_postinc(int e1,int e2,int reg) { |
| 89 | 774 char *xrn,*crn,*nrn; |
| 95 | 775 int dreg,nreg,i; |
| 89 | 776 if (car(e2)==REGISTER) { |
| 107 | 777 printf("\tmr %s,%s\n",register_name(reg),register_name(cadr(e2))); |
| 89 | 778 printf("\taddi %s,%s,%d\n", |
| 95 | 779 register_name(cadr(e2)),register_name(cadr(e2)),caddr(e1)); |
| 107 | 780 regv[reg]=1; |
| 89 | 781 return; |
| 782 } | |
| 783 g_expr(e2); | |
| 101 | 784 crn = register_name(creg); |
| 89 | 785 dreg=get_register(); if (!dreg) error(-1); |
| 786 xrn = register_name(dreg); | |
| 787 nreg=get_register(); if (!nreg) error(-1); | |
| 788 nrn = register_name(nreg); | |
| 108 | 789 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 790 printf("\taddi %s,%s,%d\n",nrn,xrn,caddr(e1)); |
| 108 | 791 printf("\tstw %s,0(%s)\n",nrn,crn); |
| 89 | 792 i=creg;creg=dreg;dreg=i; |
| 793 free_register(nreg); | |
| 794 free_register(dreg); | |
| 795 regv[creg]=1; | |
| 796 } | |
| 797 | |
| 798 | |
| 799 void | |
| 107 | 800 code_cpostinc(int e1,int e2,int reg) { |
| 95 | 801 char *xrn,*crn,*nrn; |
| 89 | 802 int i,nreg,dreg; |
| 803 if (car(e2)==REGISTER) { | |
| 108 | 804 printf("\tlbz %s,0(%s)\n",register_name(reg),register_name(cadr(e2))); |
| 107 | 805 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); |
| 89 | 806 printf("\taddi %s,%s,%d\n", |
| 807 register_name(cadr(e2)),register_name(cadr(e2)),caddr(e1)); | |
| 107 | 808 regv[reg]=1; |
| 89 | 809 return; |
| 810 } | |
| 811 g_expr(e2); | |
| 812 crn = register_name(creg); | |
| 813 dreg=get_register(); if (!dreg) error(-1); | |
| 814 xrn = register_name(dreg); | |
| 815 nreg=get_register(); if (!nreg) error(-1); | |
| 816 nrn = register_name(nreg); | |
| 108 | 817 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 818 printf("\tlbz %s,0(%s)\n",nrn,xrn); | |
| 89 | 819 printf("\textsb %s,%s\n",nrn,nrn); |
| 95 | 820 printf("\taddi %s,%s,%d\n", xrn,xrn,caddr(e1)); |
| 108 | 821 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 822 i=creg;creg=nreg;nreg=i; |
| 823 free_register(nreg); | |
| 824 free_register(dreg); | |
| 825 regv[creg]=1; | |
| 826 } | |
| 827 | |
| 828 | |
| 829 void | |
| 107 | 830 code_cpreinc(int e1,int e2,int reg) { |
| 95 | 831 char *xrn,*crn,*nrn; |
| 89 | 832 int i,nreg,dreg; |
| 833 if (car(e2)==REGISTER) { | |
| 107 | 834 printf("\tlbzu %s,%d(%s)\n",register_name(reg),caddr(e1),register_name(cadr(e2))); |
| 835 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); | |
| 836 regv[reg]=1; | |
| 89 | 837 return; |
| 838 } | |
| 839 g_expr(e2); | |
| 840 crn = register_name(creg); | |
| 841 dreg=get_register(); if (!dreg) error(-1); | |
| 842 xrn = register_name(dreg); | |
| 843 nreg=get_register(); if (!nreg) error(-1); | |
| 844 nrn = register_name(nreg); | |
| 108 | 845 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 846 printf("\tlbzu %s,%d(%s)\n",nrn,caddr(e1),xrn); |
| 108 | 847 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 848 printf("\textsb %s,%s\n",nrn,nrn); |
| 849 i=creg;creg=nreg;nreg=i; | |
| 850 free_register(nreg); | |
| 851 free_register(dreg); | |
| 852 regv[creg]=1; | |
| 853 } | |
| 854 | |
| 855 | |
| 856 void | |
| 107 | 857 code_cpostdec(int e1,int e2,int reg) { |
| 95 | 858 char *xrn,*crn,*nrn; |
| 89 | 859 int i,nreg,dreg; |
| 860 if (car(e2)==REGISTER) { | |
| 107 | 861 crn=register_name(reg); |
| 89 | 862 xrn=register_name(cadr(e2)); |
| 108 | 863 printf("\tlbz %s,0(%s)\n",crn,xrn); |
| 89 | 864 printf("\taddi %s,%s,%d\n",xrn,xrn,caddr(e1)); |
| 865 printf("\textsb %s,%s\n",crn,crn); | |
| 107 | 866 regv[reg]=1; |
| 89 | 867 return; |
| 868 } | |
| 869 g_expr(e2); | |
| 870 crn = register_name(creg); | |
| 871 dreg=get_register(); if (!dreg) error(-1); | |
| 872 xrn = register_name(dreg); | |
| 873 nreg=get_register(); if (!nreg) error(-1); | |
| 874 nrn = register_name(nreg); | |
| 108 | 875 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 876 printf("\tlbz %s,0(%s)\n",nrn,xrn); | |
| 89 | 877 printf("\taddi %s,%s,%d\n",xrn,xrn,caddr(e1)); |
| 108 | 878 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 879 printf("\textsb %s,%s\n",nrn,nrn); |
| 880 i=creg;creg=nreg;nreg=i; | |
| 881 free_register(nreg); | |
| 882 free_register(dreg); | |
| 883 regv[creg]=1; | |
| 884 } | |
| 885 | |
| 886 | |
| 887 void | |
| 107 | 888 code_cpredec(int e1,int e2,int reg) { |
| 95 | 889 char *xrn,*crn,*nrn; |
| 89 | 890 int i,nreg,dreg; |
| 891 if (car(e2)==REGISTER) { | |
| 107 | 892 crn=register_name(reg); |
| 89 | 893 xrn=register_name(cadr(e2)); |
| 894 printf("\tlbzu %s,%d(%s)\n",crn,caddr(e1),xrn); | |
| 895 printf("\textsb %s,%s\n",crn,crn); | |
| 107 | 896 regv[reg]=1; |
| 89 | 897 return; |
| 898 } | |
| 899 g_expr(e2); | |
| 900 crn = register_name(creg); | |
| 901 dreg=get_register(); if (!dreg) error(-1); | |
| 902 xrn = register_name(dreg); | |
| 903 nreg=get_register(); if (!nreg) error(-1); | |
| 904 nrn = register_name(nreg); | |
| 108 | 905 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 906 printf("\tlbzu %s,%d(%s)\n",nrn,caddr(e1),xrn); |
| 108 | 907 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 908 printf("\textsb %s,%s\n",nrn,nrn); |
| 909 i=creg;creg=nreg;nreg=i; | |
| 910 free_register(nreg); | |
| 911 free_register(dreg); | |
| 912 regv[creg]=1; | |
| 913 } | |
| 914 | |
| 915 | |
| 916 void | |
| 107 | 917 code_return(int creg) { |
| 95 | 918 char *crn = register_name(creg); |
| 102 | 919 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,retcont,code_base); |
| 920 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,retcont,code_base,crn); | |
| 89 | 921 } |
| 922 | |
| 923 | |
| 924 void | |
| 107 | 925 code_environment(int creg) { |
| 126 | 926 /* save frame pointer */ |
| 927 printf("\tmr %s,r30\n",register_name(creg)); | |
| 89 | 928 } |
| 929 | |
| 930 | |
| 931 void | |
| 116 | 932 code_bool(int e1) { |
| 89 | 933 char *xrn; |
| 934 int e2,e3; | |
| 935 b_expr(e1,1,e2=fwdlabel(),1); /* including > < ... */ | |
| 936 xrn = register_name(creg); | |
| 937 printf("\tli %s,0\n",xrn); | |
| 938 jmp(e3=fwdlabel()); | |
| 939 fwddef(e2); | |
| 940 printf("\tli %s,1\n",xrn); | |
| 941 fwddef(e3); | |
| 942 } | |
| 943 | |
| 944 char * | |
| 945 code_gt(int cond) { | |
| 113 | 946 return (cond?"gt":"le"); |
| 89 | 947 } |
| 948 | |
| 949 char * | |
| 950 code_ugt(int cond) { | |
| 113 | 951 return (cond?"gt":"le"); |
| 89 | 952 } |
| 953 | |
| 954 char * | |
| 955 code_ge(int cond) { | |
| 113 | 956 return (cond?"ge":"lt"); |
| 89 | 957 } |
| 958 | |
| 959 char * | |
| 960 code_uge(int cond) { | |
| 113 | 961 return (cond?"ge":"lt"); |
| 89 | 962 } |
| 963 | |
| 964 char * | |
| 965 code_eq(int cond) { | |
| 113 | 966 return (cond?"eq":"ne"); |
| 89 | 967 } |
| 968 | |
| 969 void | |
| 970 code_cmp_crgvar(int e1) { | |
| 971 int r; | |
| 972 char *crn = register_name(creg); | |
| 109 | 973 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 108 | 974 printf("\tlbz %s,0(%s)\n",crn,register_name(r)); |
| 89 | 975 printf("\tcmpwi cr0,%s,0\n",crn); |
| 107 | 976 regv[creg]=0; |
| 89 | 977 } |
| 978 | |
| 979 | |
| 980 void | |
| 119 | 981 code_cmp_crlvar(int e2) { |
| 89 | 982 char *crn = register_name(creg); |
| 119 | 983 lvar_intro(e2); |
| 984 printf("\tlbz %s,",crn); | |
| 985 lvar(e2); | |
| 107 | 986 code_cmp_register(creg); |
| 987 regv[creg]=0; | |
| 89 | 988 } |
| 989 | |
| 990 | |
| 991 void | |
| 992 code_cmp_rgvar(int e1) { | |
| 993 int r; | |
| 994 char *crn = register_name(creg); | |
| 109 | 995 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 108 | 996 printf("\tlwz %s,0(%s)\n",crn,register_name(r)); |
| 89 | 997 code_cmp_register(creg); |
| 107 | 998 regv[creg]=0; |
| 89 | 999 } |
| 1000 | |
| 1001 | |
| 1002 void | |
| 119 | 1003 code_cmp_rlvar(int e2) { |
| 89 | 1004 char *crn = register_name(creg); |
| 119 | 1005 lvar_intro(e2); |
| 1006 printf("\tlwz %s,",crn); | |
| 1007 lvar(e2); | |
| 89 | 1008 code_cmp_register(creg); |
| 107 | 1009 regv[creg]=0; |
| 89 | 1010 } |
| 1011 | |
| 1012 | |
| 1013 void | |
| 1014 code_cmp_register(int e2) { | |
| 1015 printf("\tcmpwi cr0,%s,0\n",register_name(e2)); | |
| 1016 } | |
| 1017 | |
| 1018 | |
| 1019 void | |
| 1020 ascii(char *s) | |
| 1021 { | |
| 1022 printf("\t.ascii \""); | |
| 1023 while(*s) { | |
| 1024 if (*s=='\n') | |
| 1025 printf("%cn",92); | |
| 1026 else if (*s<' ') | |
| 1027 printf("%c%03o",92,*s); | |
| 116 | 1028 else if (*s=='\\') |
| 1029 printf("\\\\"); | |
| 89 | 1030 else if (*s==34) |
| 1031 printf("%c%c",92,34); | |
| 1032 else | |
| 1033 printf("%c",*s); | |
| 1034 s++; | |
| 1035 } | |
| 108 | 1036 printf("\\0%c\n\t.align 2\n",34); |
| 89 | 1037 } |
| 1038 | |
| 1039 void | |
| 107 | 1040 code_string(int e1,int creg) |
| 89 | 1041 { |
| 95 | 1042 char *s,*crn; |
| 1043 int lb; | |
| 1044 crn=register_name(creg); | |
| 89 | 1045 |
| 1046 s=(char *)cadr(e1); | |
| 109 | 1047 printf(".data\t\n.cstring\n\t.align 2\n"); |
| 89 | 1048 lb=fwdlabel(); |
| 102 | 1049 printf("L_%d:\n",lb); |
| 89 | 1050 ascii(s); |
| 1051 if (output_mode==TEXT_EMIT_MODE) { | |
| 1052 printf(".text\n"); | |
| 1053 } else { | |
| 1054 text_mode(); | |
| 1055 } | |
| 102 | 1056 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,lb,code_base); |
| 1057 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,lb,code_base,crn); | |
| 89 | 1058 } |
| 1059 | |
| 1060 #define MAX_COPY_LEN 20 | |
| 1061 | |
| 1062 void | |
| 1063 emit_copy(int from,int to,int length,int offset,int value,int det) | |
| 1064 { | |
| 1065 char *frn = register_name(from); | |
| 1066 char *trn = register_name(to); | |
| 1067 char *drn; | |
| 1068 int fix = 0; | |
| 125 | 1069 char *memmove = "memmove"; |
| 95 | 1070 int dreg = get_register(); if (!dreg) error(-1); |
| 89 | 1071 drn = register_name(dreg); |
| 1072 | |
| 1073 /* length <0 means upward direction copy */ | |
| 1074 switch (length) { | |
| 1075 case 0: break; | |
| 1076 case 1: case -1: | |
| 1077 printf("\tlbz %s,%d(%s)\n",drn,offset,frn); | |
| 1078 printf("\tstb %s,%d(%s)\n",drn,offset,trn); | |
| 1079 break; | |
| 1080 case 2: case -2: | |
| 1081 printf("\tlhz %s,%d(%s)\n",drn,offset,frn); | |
| 1082 printf("\tsth %s,%d(%s)\n",drn,offset,trn); | |
| 1083 break; | |
| 1084 case 4: case -4: | |
| 1085 printf("\tlwz %s,%d(%s)\n",drn,offset,frn); | |
| 1086 printf("\tstw %s,%d(%s)\n",drn,offset,trn); | |
| 1087 break; | |
| 1088 default: | |
| 1089 if (-MAX_COPY_LEN<length && length <0) { | |
| 1090 for(;length<=4;length+=4,offset-=4) | |
| 1091 emit_copy(from,to,4,offset,0,det); | |
| 1092 for(;length<=2;length+=2,offset-=2) | |
| 1093 emit_copy(from,to,2,offset,0,det); | |
| 1094 if(length>0) | |
| 1095 emit_copy(from,to,length,offset,0,det); | |
| 1096 break; | |
| 1097 } else if (length <=MAX_COPY_LEN) { | |
| 1098 for(;length>=4;length-=4,offset+=4) | |
| 1099 emit_copy(from,to,4,offset,0,det); | |
| 1100 for(;length>=2;length-=2,offset+=2) | |
| 1101 emit_copy(from,to,2,offset,0,det); | |
| 1102 if(length>0) | |
| 1103 emit_copy(from,to,length,offset,0,det); | |
| 1104 break; | |
| 1105 } | |
| 125 | 1106 clear_ptr_cache(); |
| 1107 code_save_stacks(); | |
| 1108 printf("\tli r5,%d\n",length); | |
| 1109 printf("\tmr r4,%s\n",frn); | |
| 1110 printf("\tmr r3,%s\n",trn); | |
| 1111 /* overrap must be allowed */ | |
| 1112 printf("\tbl L_%s$stub\n",memmove); | |
| 1113 extern_define(memmove,0,FUNCTION,1); | |
| 1114 fix=0; | |
| 1115 set_creg(RET_REGISTER,0); | |
| 1116 if (creg!=to) { | |
| 1117 free_register(to); to = creg; | |
| 89 | 1118 } |
| 125 | 1119 break; |
| 89 | 1120 } |
| 1121 if (value) { | |
| 1122 /* creg must point top of the destination data */ | |
| 1123 /* this code is necessary for the value of assignment or function call */ | |
| 1124 /* otherwise we don't need this */ | |
| 1125 if (fix) printf("\taddi %s,%s,%d\n",trn,trn,fix); | |
| 1126 if(creg!=to) { | |
| 1127 free_register(creg); creg=to; | |
| 1128 } | |
| 1129 } | |
| 1130 free_register(dreg); | |
| 1131 regv[from]=regv[to]=regv[dreg]=0; | |
| 1132 regv[creg]=1; | |
| 1133 } | |
| 1134 | |
| 1135 int | |
| 119 | 1136 struct_push(int e4,int t,int arg) |
| 89 | 1137 { |
| 95 | 1138 int length,count; |
| 119 | 1139 int dreg,sreg; char *drn,*crn,*srn; |
| 89 | 1140 g_expr(e4); |
| 1141 length=size(t); | |
| 1142 if(length%size_of_int) { | |
| 1143 length += size_of_int - (length%size_of_int); | |
| 1144 } | |
| 95 | 1145 dreg = get_register(); if (!dreg) error(-1); |
| 89 | 1146 drn = register_name(dreg); |
| 119 | 1147 crn = register_name(creg); |
| 125 | 1148 if (length<MAX_COPY_LEN) { |
| 1149 sreg = get_register(); if (!sreg) error(-1); | |
| 1150 srn = register_name(sreg); | |
| 1151 code_lvar(cadr(arg),sreg); | |
| 1152 for(count=0;length<MAX_COPY_LEN;count++,length-=size_of_int) { | |
| 1153 if (length==0) { | |
| 1154 free_register(sreg); | |
| 1155 free_register(dreg); | |
| 1156 return count; | |
| 1157 } else { | |
| 1158 printf("\tlwz %s,%d(%s)\n",drn,length-size_of_int,crn); | |
| 1159 printf("\tstwu %s,%d(%s)\n",drn,-size_of_int,srn); | |
| 1160 } | |
| 89 | 1161 } |
| 1162 } | |
| 125 | 1163 code_lvar(cadr(arg),dreg); |
| 89 | 1164 /* downward direction copy */ |
| 1165 emit_copy(creg,dreg,length,0,0,1); | |
| 119 | 1166 if (dreg) free_register(dreg); |
| 89 | 1167 return length/size_of_int; |
| 1168 } | |
| 1169 | |
| 104 | 1170 void |
| 1171 set_creg(int reg,int mode) | |
| 1172 { | |
| 1173 if (reg!=creg) { | |
| 111 | 1174 clear_ptr_cache_reg(reg); |
| 104 | 1175 if (mode) |
| 1176 printf("\tmr %s,%s\n",register_name(reg),register_name(creg)); | |
| 1177 free_register(creg); | |
| 1178 creg = reg; | |
| 1179 regs[creg]=1; | |
| 1180 } | |
| 1181 } | |
| 1182 | |
| 1183 void | |
| 1184 set_freg(int reg,int mode) | |
| 1185 { | |
| 1186 if (reg!=freg) { | |
| 1187 if (mode) | |
| 1188 printf("\tfmr %s,%s\n",fregister_name(reg),fregister_name(freg)); | |
| 1189 free_fregister(freg); | |
| 1190 freg = reg; | |
| 1191 fregs[freg]=1; | |
| 1192 } | |
| 1193 } | |
| 1194 | |
| 1195 void | |
| 1196 use_var(int arg) | |
| 1197 { | |
| 1198 if (car(arg)==REGISTER) | |
| 116 | 1199 regs[cadr(arg)]=USING_REG; |
| 104 | 1200 else if (car(arg)==DREGISTER) |
| 116 | 1201 fregs[cadr(arg)]=USING_REG; |
| 104 | 1202 } |
| 1203 | |
| 105 | 1204 void |
| 1205 code_save_input_registers() | |
| 1206 { | |
| 119 | 1207 #if 0 |
| 105 | 1208 int args; |
| 1209 NMTBL *n; | |
| 1210 int reg; | |
| 1211 int tag; | |
| 1212 int lvar; | |
| 1213 int t; | |
| 1214 /* fnptr->dsp=list4(type,fnptr->dsp,(int)n,0); */ | |
| 112 | 1215 int reg_offset = 0; |
| 105 | 1216 |
| 1217 for(args = fnptr->dsp;args;args = cadr(args)) { | |
| 1218 n = (NMTBL *)caddr(args); | |
| 1219 tag = n->sc; | |
| 1220 reg = n->dsp; | |
| 1221 if (!n||n==&null_nptr) error(REG_ERR); | |
| 1222 if (tag==REGISTER) { | |
| 1223 /* regs[reg]==INPUT_REG case should be considered */ | |
| 1224 n->dsp = new_lvar(size_of_int); | |
| 1225 t = INT; | |
| 112 | 1226 reg += reg_offset; /* for duplicated floating point argument */ |
| 105 | 1227 } else if (tag==DREGISTER) { |
| 1228 /* fregs[reg]==INPUT_REG case should be considered */ | |
| 1229 n->dsp = new_lvar(size_of_double); | |
| 1230 t = DOUBLE; | |
| 112 | 1231 reg_offset+=2; |
| 105 | 1232 } else |
| 1233 continue; | |
| 1234 n->sc = LVAR; | |
| 1235 lvar = list2(LVAR,n->dsp); | |
| 112 | 1236 g_expr_u(assign_expr0(list2(LVAR,n->dsp),list3(tag,reg,(int)n),n->ty,t)); |
| 105 | 1237 if (tag==REGISTER) { |
| 1238 free_register(reg); | |
| 1239 } else if (tag==DREGISTER) { | |
| 1240 free_fregister(reg); | |
| 1241 } | |
| 1242 } | |
| 121 | 1243 my_func_args = 0; |
| 119 | 1244 #else |
| 1245 int args; | |
| 1246 NMTBL *n; | |
| 1247 int reg; | |
| 1248 int tag; | |
| 1249 int lvar; | |
| 1250 int t; | |
| 1251 /* fnptr->dsp=list4(type,fnptr->dsp,(int)n,0); */ | |
| 1252 int reg_offset = 0; | |
| 1253 int offset = 0; | |
| 1254 | |
| 1255 for(args = fnptr->dsp;args;args = cadr(args)) { | |
| 1256 n = (NMTBL *)caddr(args); | |
| 1257 tag = n->sc; | |
| 1258 reg = n->dsp; | |
| 1259 if (!n||n==&null_nptr) error(REG_ERR); | |
| 1260 if (tag==REGISTER) { | |
| 1261 /* regs[reg]==INPUT_REG case should be considered */ | |
| 1262 n->dsp = offset; | |
| 1263 offset+=size_of_int; | |
| 1264 t = INT; | |
| 1265 reg += reg_offset; /* for duplicated floating point argument */ | |
| 1266 } else if (tag==DREGISTER) { | |
| 1267 /* fregs[reg]==INPUT_REG case should be considered */ | |
| 1268 n->dsp = offset; | |
| 120 | 1269 t = n->ty; |
| 121 | 1270 if(t==FLOAT) { offset+=size_of_float; reg_offset+=1; } |
| 1271 else if(t==DOUBLE) { offset+=size_of_double; reg_offset+=2; } | |
| 120 | 1272 else error(-1); |
| 122 | 1273 } else { |
| 1274 offset += size(n->ty); | |
| 119 | 1275 continue; |
| 122 | 1276 } |
| 119 | 1277 n->sc = LVAR; |
| 1278 lvar = list2(LVAR,n->dsp); | |
| 1279 g_expr_u(assign_expr0(list2(LVAR,n->dsp),list3(tag,reg,(int)n),n->ty,t)); | |
| 1280 if (tag==REGISTER) { | |
| 1281 free_register(reg); | |
| 1282 } else if (tag==DREGISTER) { | |
| 1283 free_fregister(reg); | |
| 1284 } | |
| 1285 } | |
| 121 | 1286 my_func_args = offset; |
| 119 | 1287 #endif |
| 105 | 1288 } |
| 1289 | |
| 95 | 1290 int |
| 108 | 1291 simple_args(int e3) |
| 1292 { | |
| 1293 return | |
| 1294 !contains_in_list(e3,FUNCTION) && | |
| 1295 !contains_in_list(e3,CONV) && | |
| 125 | 1296 !contains_in_list(e3,RSTRUCT) && |
| 108 | 1297 !contains_in_list(e3,SASS) |
| 1298 ; | |
| 1299 } | |
| 1300 | |
| 119 | 1301 int |
| 1302 caller_arg_offset_v(int arg) | |
| 1303 { | |
| 1304 return ARG_LVAR_OFFSET+arg*size_of_int; | |
| 1305 } | |
| 111 | 1306 |
| 108 | 1307 int |
| 89 | 1308 function(int e1) |
| 1309 { | |
| 119 | 1310 int e2,e3,e4,e5,nargs,t,r0,r1; |
| 104 | 1311 int arg,reg_arg,freg_arg,arg_assign; |
| 111 | 1312 int reg_arg_list=0,ret_type,special_lvar; |
| 127 | 1313 NMTBL *fn = 0; |
| 108 | 1314 int jmp = 0; |
| 1315 char *jrn; | |
| 95 | 1316 |
| 111 | 1317 special_lvar = -1; |
| 105 | 1318 ret_type = cadddr(e1); |
| 108 | 1319 |
| 1320 e2 = cadr(e1); | |
| 1321 if (car(e2) == FNAME) { | |
| 1322 fn=(NMTBL *)cadr(e2); | |
| 1323 } else { | |
| 1324 jmp = get_register_var(0); | |
| 1325 if (car(jmp)!=REGISTER) error(-1); | |
| 1326 reg_arg_list = list2(jmp,reg_arg_list); | |
| 116 | 1327 g_expr(e2); |
| 1328 code_register(creg,cadr(jmp)); | |
| 1329 /* g_expr(assign_expr0(jmp,e2,INT,INT)); functions are lvalue */ | |
| 108 | 1330 } |
| 1331 | |
| 99 | 1332 /* now all input register vars are free */ |
| 108 | 1333 code_save_stacks(); |
| 107 | 1334 set_creg(CREG_REGISTER,0); |
| 1335 set_freg(FREG_FREGISTER,0); | |
| 108 | 1336 |
| 1337 nargs = reg_arg = freg_arg = arg_assign = 0; | |
| 105 | 1338 for (e3 = reverse0(caddr(e1)); e3; e3 = cadr(e3)) { |
| 89 | 1339 t=caddr(e3); |
| 111 | 1340 e4 = car(e3); |
| 89 | 1341 if(scalar(t)) { |
| 122 | 1342 if (reg_arg>=MAX_INPUT_REGISTER_VAR) { |
| 119 | 1343 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 116 | 1344 } else if (!simple_args(e3) && cadr(e3)) { |
| 105 | 1345 arg = get_register_var(0); |
| 104 | 1346 arg_assign = list2( |
| 126 | 1347 assign_expr0(get_input_register_var(reg_arg,0,0),arg,t,t), |
| 104 | 1348 arg_assign); |
| 96 | 1349 } else { |
| 126 | 1350 arg = get_input_register_var(reg_arg,0,0); |
| 89 | 1351 } |
| 107 | 1352 use_var(arg); /* protect from input register free */ |
| 99 | 1353 reg_arg_list = list2(arg,reg_arg_list); |
| 1354 g_expr_u(assign_expr0(arg,e4,t,t)); | |
| 89 | 1355 nargs ++ ; reg_arg++; |
| 99 | 1356 continue; |
| 89 | 1357 } else if (t==DOUBLE||t==FLOAT) { |
| 122 | 1358 if (reg_arg<MAX_INPUT_REGISTER_VAR) { |
| 119 | 1359 /* sigh... |
| 1360 printf requies floating value in integer registers | |
| 1361 */ | |
| 111 | 1362 if (car(e4)==DRLVAR) { |
| 1363 special_lvar = cadr(e4); | |
| 1364 e5 = list2(LVAR,special_lvar); | |
| 1365 } else { | |
| 1366 special_lvar = new_lvar(size_of_double); | |
| 119 | 1367 g_expr(assign_expr0( |
| 1368 (e5=list2(LVAR,special_lvar)),e4,t,t)); | |
| 1369 reg_arg_list = list2(e5,reg_arg_list); | |
| 1370 e4 = list2(DREGISTER,freg); | |
| 118 | 1371 /* freg should not change until XXX */ |
| 111 | 1372 } |
| 126 | 1373 r0=get_input_register_var(reg_arg,0,0); |
| 1374 r1=get_input_register_var(reg_arg+1,0,0); | |
| 119 | 1375 use_var(r0); /* protect from input register free */ |
| 1376 use_var(r1); /* protect from input register free */ | |
| 111 | 1377 reg_arg_list = list2(r0,reg_arg_list); |
| 1378 reg_arg_list = list2(r1,reg_arg_list); | |
| 1379 arg_assign = list2( assign_expr0(r0,e5,INT,INT), arg_assign); | |
| 1380 arg_assign = list2( assign_expr0(r1, | |
| 1381 list2(LVAR,special_lvar+size_of_int), | |
| 1382 INT,INT), arg_assign); | |
| 1383 reg_arg += 2; | |
| 1384 } | |
| 122 | 1385 if (freg_arg>=4 && freg_arg<MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1386 /* oh my god! |
| 1387 it requies integer register and floating register and | |
| 1388 stack value. You are crazy. | |
| 1389 */ | |
| 1390 arg_assign = list2( | |
| 1391 assign_expr0(list2(LVAR,caller_arg_offset_v(nargs)), | |
| 126 | 1392 get_input_fregister_var(freg_arg,0,0),t,t), |
| 119 | 1393 arg_assign); |
| 1394 } | |
| 122 | 1395 if (freg_arg>=MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1396 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 108 | 1397 } else if (!simple_args(e3)) { |
| 105 | 1398 arg = get_fregister_var(0); |
| 104 | 1399 arg_assign = list2( |
| 126 | 1400 assign_expr0(get_input_fregister_var(freg_arg,0,0),arg,t,t), |
| 104 | 1401 arg_assign); |
| 99 | 1402 } else { |
| 126 | 1403 arg = get_input_fregister_var(freg_arg,0,0); |
| 99 | 1404 } |
| 107 | 1405 use_var(arg); /* protect from input register free */ |
| 99 | 1406 reg_arg_list = list2(arg,reg_arg_list); |
| 118 | 1407 g_expr_u(assign_expr0(arg,e4,t,t)); /* XXX */ |
| 99 | 1408 freg_arg++; |
| 122 | 1409 nargs += size(t)/size_of_int; |
| 89 | 1410 continue; |
| 1411 } else if (car(t)==STRUCT||car(t)==UNION) { | |
| 119 | 1412 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 1413 nargs += struct_push(e4,t,arg); | |
| 89 | 1414 continue; |
| 1415 } else { | |
| 1416 error(TYERR); | |
| 1417 } | |
| 1418 ++nargs; | |
| 1419 } | |
| 116 | 1420 if (max_func_args<nargs) max_func_args=nargs; |
| 104 | 1421 for(;arg_assign;arg_assign=cadr(arg_assign)) { |
| 1422 g_expr_u(car(arg_assign)); | |
| 1423 } | |
| 96 | 1424 clear_ptr_cache(); |
| 89 | 1425 if (car(e2) == FNAME) { |
| 108 | 1426 printf("\tbl\tL_%s$stub\n",fn->nm); |
| 89 | 1427 } else { |
| 108 | 1428 jrn = register_name(cadr(jmp)); |
| 89 | 1429 printf("\tmtctr %s\n",jrn); |
| 1430 printf("\tbctrl\n"); | |
| 1431 } | |
| 99 | 1432 for(;reg_arg_list;reg_arg_list=cadr(reg_arg_list)) { |
| 108 | 1433 arg = car(reg_arg_list); |
| 1434 if (car(arg)==DREGISTER) free_fregister(cadr(arg)); | |
| 1435 else if (car(arg)==REGISTER) free_register(cadr(arg)); | |
| 119 | 1436 else if (car(arg)==LVAR&&cadr(arg)<0) free_lvar(cadr(arg)); |
| 99 | 1437 } |
| 105 | 1438 if (ret_type==DOUBLE||ret_type==FLOAT) { |
| 104 | 1439 set_freg(RET_FREGISTER,0); |
| 96 | 1440 fregv[freg]=1; regv[creg]=0; |
| 105 | 1441 } else if (ret_type==VOID) { |
| 96 | 1442 fregv[freg]=0; regv[creg]=0; |
| 1443 } else { | |
| 104 | 1444 set_creg(RET_REGISTER,0); |
| 96 | 1445 fregv[freg]=0; regv[creg]=1; |
| 1446 } | |
| 105 | 1447 return ret_type; |
| 89 | 1448 } |
| 1449 | |
| 1450 void | |
| 1451 code_frame_pointer(int e3) { | |
| 126 | 1452 printf("\tmr r30,%s\n",register_name(e3)); |
| 89 | 1453 } |
| 1454 | |
| 1455 | |
| 1456 void | |
| 1457 code_fix_frame_pointer(int disp_offset) { | |
| 116 | 1458 printf("\tla r1,%d(r30)\n",disp_offset); |
| 89 | 1459 } |
| 1460 | |
| 1461 void | |
| 1462 code_jmp(char *s) { | |
| 1463 printf("\tb L_%s$stub\n",s); | |
| 1464 } | |
| 1465 | |
| 1466 | |
| 1467 void | |
| 1468 code_indirect_jmp(int e2) { | |
| 1469 printf("\tmtctr %s\n",register_name(e2)); | |
| 1470 printf("\tbctr\n"); | |
| 1471 } | |
| 1472 | |
| 95 | 1473 int |
| 89 | 1474 rindirect(int e1) /* *(p +5 ) */ |
| 1475 { | |
| 95 | 1476 char *crn; |
| 119 | 1477 int e2,e3,e4,offset; |
| 1478 | |
| 1479 offset=0; | |
| 89 | 1480 e3 = cadr(e2 = cadr(e1)); |
| 119 | 1481 if (car(e2)==ADD) { |
| 1482 e4=caddr(e2); | |
| 1483 if (car(e4)==CONST) { | |
| 1484 offset=cadr(e4); | |
| 1485 e2=e3; | |
| 1486 } | |
| 1487 } | |
| 89 | 1488 g_expr(e2); |
| 90 | 1489 crn=register_name(creg); |
| 89 | 1490 switch (car(e1)) { |
| 1491 case FRINDIRECT: case DRINDIRECT: | |
| 119 | 1492 printf("\t%s %s,%d(%s)\n",fload(car(e1)==DRINDIRECT), |
| 1493 fregister_name(freg),offset,crn); | |
| 90 | 1494 regv[creg]=0; regv[freg]=1; |
| 95 | 1495 return DOUBLE; |
| 90 | 1496 case CRINDIRECT: |
| 119 | 1497 printf("\tlbz %s,%d(%s)\n",crn,offset,crn); |
| 90 | 1498 printf("\textsb %s,%s\n",crn,crn); |
| 95 | 1499 return CHAR; |
| 90 | 1500 case RINDIRECT: |
| 119 | 1501 printf("\tlwz %s,%d(%s)\n",crn,offset,crn); |
| 95 | 1502 return INT; |
| 89 | 1503 } |
| 95 | 1504 error(-1); return INT; |
| 89 | 1505 } |
| 1506 | |
| 1507 void | |
| 103 | 1508 code_assign_gvar(int e2,int creg,int byte) { |
| 90 | 1509 int r; |
| 1510 char *crn,*rrn; | |
| 109 | 1511 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 90 | 1512 rrn=register_name(r); |
| 1513 crn=register_name(creg); | |
| 1514 if (byte) { | |
| 108 | 1515 printf("\tstb %s,0(%s)\n",crn,rrn); |
| 90 | 1516 } else { |
| 108 | 1517 printf("\tstw %s,0(%s)\n",crn,rrn); |
| 90 | 1518 } |
| 89 | 1519 } |
| 1520 | |
| 1521 void | |
| 103 | 1522 code_assign_lvar(int e2,int creg,int byte) { |
| 90 | 1523 char *crn; |
| 1524 crn=register_name(creg); | |
| 119 | 1525 lvar_intro(e2); |
| 90 | 1526 if (byte) { |
| 119 | 1527 printf("\tstb %s,",crn); lvar(e2); |
| 90 | 1528 } else { |
| 119 | 1529 printf("\tstw %s,",crn); lvar(e2); |
| 90 | 1530 } |
| 89 | 1531 } |
| 1532 | |
| 1533 void | |
| 111 | 1534 code_assign_register(int e2,int byte,int creg) { |
| 104 | 1535 if (e2!=creg) |
| 1536 printf("\tmr %s,%s\n",register_name(e2),register_name(creg)); | |
| 89 | 1537 } |
| 1538 | |
| 1539 void | |
| 118 | 1540 code_assign(int e2,int byte,int creg) { |
| 95 | 1541 char *drn=register_name(e2); |
| 1542 char *crn=register_name(creg); | |
| 1543 | |
| 90 | 1544 if (byte) { |
| 108 | 1545 printf("\tstb %s,0(%s)\n",crn,drn); |
| 90 | 1546 } else { |
| 108 | 1547 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1548 } |
| 89 | 1549 } |
| 1550 | |
| 1551 | |
| 1552 void | |
| 1553 code_register_assop(int e2,int op,int byte) { | |
| 1554 int reg; | |
| 1555 int xreg = creg; | |
| 1556 creg = reg = e2; | |
| 1557 tosop(op,xreg); | |
| 1558 creg = xreg; | |
| 104 | 1559 if (creg!=reg) |
| 1560 printf("\tmr %s,%s\n",register_name(creg),register_name(reg)); | |
| 89 | 1561 } |
| 1562 | |
| 1563 | |
| 1564 void | |
| 1565 code_assop(int op,int byte) { | |
| 90 | 1566 char *xrn,*crn,*drn; |
| 89 | 1567 int xreg; |
| 90 | 1568 int edx = get_register(); if(!edx) error(-1); |
| 93 | 1569 xrn = register_name(xreg = emit_pop(0)); /* pop e3 value */ |
| 89 | 1570 regv[xreg]=regs[xreg]=1; |
| 113 | 1571 printf("# assop\n\tmr %s,%s\n",register_name(edx),register_name(creg)); |
| 89 | 1572 regv[edx]=1; |
| 1573 ld_indexx(byte,0,edx); | |
| 1574 tosop(op,xreg); | |
| 90 | 1575 crn = register_name(creg); |
| 1576 drn = register_name(edx); | |
| 1577 if (byte) { | |
| 108 | 1578 printf("\tstb %s,0(%s)\n",crn,drn); |
| 90 | 1579 } else { |
| 108 | 1580 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1581 } |
| 1582 free_register(edx); | |
| 89 | 1583 emit_pop_free(xreg); |
| 1584 } | |
| 1585 | |
| 1586 | |
| 1587 void | |
| 1588 tosop(int op,int oreg) | |
| 1589 { | |
| 1590 int dx; | |
| 95 | 1591 char *orn,*crn,*drn; |
| 89 | 1592 |
| 103 | 1593 if(oreg==-1) { |
| 1594 error(-1); | |
| 1595 } else if (oreg<= -REG_LVAR_OFFSET) { | |
| 104 | 1596 dx = get_register(); if (dx<0) error(-1); |
| 119 | 1597 code_rlvar(oreg+REG_LVAR_OFFSET,dx); |
| 104 | 1598 oreg = dx; |
| 103 | 1599 regv[oreg]=1; |
| 1600 } | |
| 1601 | |
| 89 | 1602 switch(op) { |
| 1603 case LSHIFT: | |
| 1604 case ULSHIFT: | |
| 90 | 1605 shift("slw",oreg); |
| 89 | 1606 return; |
| 1607 case RSHIFT: | |
| 90 | 1608 shift("srw",oreg); |
| 89 | 1609 return; |
| 1610 case URSHIFT: | |
| 90 | 1611 shift("sraw",oreg); |
| 89 | 1612 return; |
| 1613 } | |
| 93 | 1614 orn = register_name(oreg); |
| 89 | 1615 crn = register_name(creg); |
| 1616 switch(op) { | |
| 1617 case ADD: | |
| 114 | 1618 printf("\tadd %s,%s,%s\n",crn,crn,orn); |
| 89 | 1619 break; |
| 1620 case SUB: | |
| 114 | 1621 printf("\tsub %s,%s,%s\n",crn,crn,orn); |
| 89 | 1622 break; |
| 112 | 1623 case CMP: |
| 113 | 1624 printf("\tcmpw cr0,%s,%s\n",crn,orn); |
| 112 | 1625 break; |
| 89 | 1626 case BAND: |
| 114 | 1627 printf("\tand %s,%s,%s\n",crn,crn,orn); |
| 89 | 1628 break; |
| 1629 case EOR: | |
| 114 | 1630 printf("\txor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1631 break; |
| 1632 case BOR: | |
| 114 | 1633 printf("\tor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1634 break; |
| 1635 case MUL: | |
| 116 | 1636 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 1637 break; | |
| 89 | 1638 case UMUL: |
| 114 | 1639 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 89 | 1640 break; |
| 1641 case DIV: | |
| 114 | 1642 printf("\tdivw %s,%s,%s\n",crn,crn,orn); |
| 90 | 1643 break; |
| 89 | 1644 case UDIV: |
| 114 | 1645 printf("\tdivwu %s,%s,%s\n",crn,crn,orn); |
| 89 | 1646 break; |
| 1647 case MOD: | |
| 90 | 1648 dx=get_register(); |
| 95 | 1649 drn = register_name(dx); |
| 116 | 1650 printf("\tdivw %s,%s,%s\n",drn,crn,orn); |
| 1651 printf("\tmullw %s,%s,%s\n",drn,drn,orn); | |
| 1652 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1653 free_register(dx); |
| 90 | 1654 break; |
| 89 | 1655 case UMOD: |
| 90 | 1656 dx=get_register(); |
| 95 | 1657 drn = register_name(dx); |
| 114 | 1658 printf("\tdivwu %s,%s,%s\n",drn,crn,orn); |
| 116 | 1659 printf("\tmullw %s,%s,%s\n",drn,drn,orn); |
| 1660 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1661 free_register(dx); |
| 89 | 1662 break; |
| 112 | 1663 default: |
| 1664 error(-1); | |
| 89 | 1665 } |
| 95 | 1666 if(oreg!=creg) free_register(oreg); |
| 89 | 1667 } |
| 1668 | |
| 1669 | |
| 1670 void | |
| 1671 shift(char *op, int reg) | |
| 1672 { | |
| 93 | 1673 char *crn = register_name(creg); |
| 1674 char *rrn = register_name(reg); | |
| 90 | 1675 printf("\t%s %s,%s,%s\n",op,crn,rrn,crn); |
| 89 | 1676 } |
| 1677 | |
| 1678 void | |
| 1679 ld_indexx(int byte, int n, int xreg) | |
| 1680 { | |
| 95 | 1681 char *crn = register_name(creg); |
| 90 | 1682 if (byte) { |
| 95 | 1683 printf("\tlbz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1684 register_name(xreg)); |
| 1685 printf("\textsb %s,%s\n",crn,crn); | |
| 1686 } else | |
| 95 | 1687 printf("\tlwz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1688 register_name(xreg)); |
| 89 | 1689 } |
| 1690 | |
| 95 | 1691 int |
| 1692 code_csvalue() | |
| 1693 { | |
| 1694 return creg; | |
| 1695 } | |
| 1696 | |
| 89 | 1697 void |
| 95 | 1698 code_cmpdimm(int e, int csreg) |
| 89 | 1699 { |
| 1700 /* used in dosiwtch() */ | |
| 1701 if(chk) return; | |
| 108 | 1702 printf("\tcmpwi cr0,%s,%d\n",register_name(csreg),e); |
| 89 | 1703 } |
| 1704 | |
| 1705 void | |
| 1706 code_opening(char *filename) | |
| 1707 { | |
| 1708 printf("\t.file \"%s\"\n",filename); | |
| 108 | 1709 /* printf("\t.version\t\"01.01\"\n"); */ |
| 89 | 1710 /* printf("gcc2_compiled.:\n"); */ |
| 1711 printf(".text\n"); | |
| 1712 } | |
| 1713 | |
| 1714 void | |
| 95 | 1715 rexpr(int e1, int l1, char *s,int t) |
| 89 | 1716 { |
| 90 | 1717 g_expr(list3(CMP,cadr(e1),caddr(e1))); |
| 102 | 1718 printf("\tb%s cr0,L_%d\n",s,l1); |
| 89 | 1719 } |
| 1720 | |
| 1721 | |
| 1722 void | |
| 1723 jcond(int l, char cond) | |
| 1724 { | |
| 1725 if (chk) return; | |
| 102 | 1726 printf("\tb%s cr0,L_%d\n",cond?"ne":"eq",l); |
| 89 | 1727 } |
| 1728 | |
| 1729 void | |
| 1730 jmp(int l) | |
| 1731 { | |
| 1732 control=0; | |
| 1733 if (chk) return; | |
| 102 | 1734 printf("\tb\tL_%d\n",l); |
| 89 | 1735 } |
| 1736 | |
| 1737 void | |
| 1738 gen_comment(char *s) | |
| 1739 { | |
| 1740 if (chk) return; | |
| 1741 printf("## %s",s); | |
| 1742 } | |
| 1743 | |
| 1744 void | |
| 1745 code_enter(char *name) | |
| 1746 { | |
|
100
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1747 if (output_mode!=TEXT_EMIT_MODE) |
|
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|
1748 text_mode(); |
|
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|
1749 else |
| 108 | 1750 printf("\t.align 2\n"); |
| 89 | 1751 if (stmode!=STATIC) |
| 102 | 1752 printf(".globl _%s\n",name); |
| 126 | 1753 #ifdef DOT_SIZE |
| 89 | 1754 printf("\t.type\t%s,@function\n",name); |
| 126 | 1755 #endif |
| 101 | 1756 printf("_%s:\n",name); |
|
100
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|
1757 code_disp_label=fwdlabel(); |
| 126 | 1758 printf("\tstwu r1,lo16(L_%d)(r30)\n",code_disp_label); |
| 1759 printf("\tbcl 20,31,L_%d\n",code_base = fwdlabel()); | |
| 1760 fwddef(code_base); | |
| 1761 printf("\tmflr r31\n"); | |
| 119 | 1762 max_func_args = 0; |
| 89 | 1763 } |
| 1764 | |
| 1765 | |
| 1766 void | |
| 1767 code_enter1(int args) | |
| 1768 { | |
| 1769 printf("## args %d disp %d code_arg_offset=%d code_disp_offset=%d\n",args,disp,code_arg_offset,code_disp_offset); | |
| 106 | 1770 set_creg(CREG_REGISTER,0); |
| 1771 set_freg(FREG_FREGISTER,0); | |
| 89 | 1772 } |
| 1773 | |
| 1774 void | |
| 1775 code_leave(char *name) | |
| 1776 { | |
| 1777 disp&= -size_of_int; | |
| 126 | 1778 printf(".set L_%d,%d\n",code_disp_label,disp+code_disp_offset); |
| 89 | 1779 local_table(); |
| 1780 labelno++; | |
| 1781 free_all_register(); | |
| 1782 } | |
| 1783 | |
| 1784 void | |
| 1785 enter(char *name) | |
| 1786 { | |
|
100
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1787 if (output_mode!=TEXT_EMIT_MODE) |
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1788 text_mode(); |
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1789 else |
| 108 | 1790 printf("\t.align 2\n"); |
| 89 | 1791 if (stmode!=STATIC) |
| 101 | 1792 printf(".globl _%s\n",name); |
| 108 | 1793 /* |
|
100
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diff
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|
1794 printf("\t.type\t%s,@function\n",name); |
| 108 | 1795 */ |
| 101 | 1796 printf("_%s:\n",name); |
|
100
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1797 code_setup=fwdlabel(); |
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1798 printf("\tmflr r0\n"); |
| 102 | 1799 printf("\tbl L_%d\n",code_setup); |
|
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1800 code_base=fwdlabel(); |
| 111 | 1801 fwddef(code_base); |
| 116 | 1802 r1_offset_label = fwdlabel(); |
| 1803 lvar_offset_label = fwdlabel(); | |
| 1804 printf("\tstwu r1,lo16(-L_%d)(r1)\n",r1_offset_label); | |
|
100
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1805 printf("\tmr r30,r1\n"); |
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1806 printf("\tmflr r31\n"); |
| 116 | 1807 max_func_args = 0; |
| 89 | 1808 } |
| 1809 | |
| 1810 void | |
| 1811 enter1() | |
| 1812 { | |
| 106 | 1813 set_creg(CREG_REGISTER,0); |
| 1814 set_freg(FREG_FREGISTER,0); | |
|
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1815 } |
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1816 |
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1817 int |
|
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1818 reg_save_offset() |
|
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1819 { |
| 108 | 1820 return -( |
| 116 | 1821 (REAL_MAX_REGISTER-(REG_VAR_BASE-max_reg_var))*size_of_int+ |
| 108 | 1822 (REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*size_of_double |
| 1823 ); | |
| 89 | 1824 } |
| 1825 | |
| 1826 void | |
| 1827 leave(int control, char *name) | |
| 1828 { | |
| 111 | 1829 |
|
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1830 if (control) { |
| 108 | 1831 code_set_return_register(1); |
| 89 | 1832 } |
| 126 | 1833 if (retcont) { |
| 1834 if (control) jmp(retlabel); | |
| 1835 fwddef(retcont); | |
| 1836 printf("\tmr r1,r30\n"); | |
| 1837 if (cadr(fnptr->ty)==FLOAT||cadr(fnptr->ty)==DOUBLE) { | |
| 1838 printf("\tfmr f1,f31\n"); | |
| 1839 } else if (cadr(fnptr->ty)!=VOID) { | |
| 1840 printf("\tmr r3,r29\n"); | |
| 1841 } | |
| 1842 } | |
| 89 | 1843 fwddef(retlabel); |
|
100
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1844 printf("\tlwz r1,0(r1)\n"); |
| 116 | 1845 if (max_freg_var>=0 && max_freg_var<=3) max_freg_var=3; |
| 111 | 1846 reg_save = reg_save_offset(); |
| 110 | 1847 if (max_freg_var>=0) { |
| 1848 printf("\tlmw r%d,%d(r1)\n", | |
| 111 | 1849 REG_VAR_BASE-max_reg_var,reg_save); |
| 1850 freg_save = 72-(REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*4; | |
|
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1851 printf("\tb restFP+%d ; restore f%d-f31\n", |
| 111 | 1852 freg_save, |
|
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1853 FREG_VAR_BASE-max_freg_var); |
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1854 } else { |
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1855 printf("\tlwz r0,8(r1)\n"); |
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1856 printf("\tmtlr r0\n"); |
| 110 | 1857 printf("\tlmw r%d,%d(r1)\n", |
| 116 | 1858 REG_VAR_BASE-max_reg_var,reg_save); |
|
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1859 printf("\tblr\n"); |
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1860 } |
| 89 | 1861 |
|
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1862 disp &= -size_of_int; |
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1863 fwddef(code_setup); |
| 110 | 1864 printf("\tstmw r%d,%d(r1)\n", |
| 116 | 1865 REG_VAR_BASE-max_reg_var,reg_save); |
| 110 | 1866 printf("\tstw r0,8(r1)\n"); |
| 1867 if (max_freg_var>=0) | |
|
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1868 printf("\tb saveFP+%d ; save f%d-f31\n", |
| 111 | 1869 freg_save, |
|
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1870 FREG_VAR_BASE-max_freg_var); |
| 110 | 1871 else { |
|
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1872 printf("\tblr\n"); |
| 110 | 1873 } |
|
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1874 |
| 116 | 1875 code_offset_set(); |
| 89 | 1876 local_table(); |
| 1877 labelno++; | |
| 1878 free_all_register(); | |
| 1879 } | |
| 1880 | |
| 1881 | |
| 1882 void | |
| 107 | 1883 code_set_return_register(int mode) { |
| 111 | 1884 if (cadr(fnptr->ty)==DOUBLE||cadr(fnptr->ty)==FLOAT) { |
| 107 | 1885 set_freg(RET_FREGISTER,mode); |
| 103 | 1886 } else { |
| 107 | 1887 set_creg(RET_REGISTER,mode); |
| 103 | 1888 } |
| 89 | 1889 } |
| 1890 | |
| 1891 void | |
| 108 | 1892 code_set_fixed_creg(int mode,int type) { |
| 1893 if (type==FLOAT||type==DOUBLE) { | |
| 1894 if (cond_freg== -1) { | |
| 1895 cond_freg = get_fregister_var(0); | |
| 1896 if(car(cond_freg)!=DREGISTER) error(-1); | |
| 1897 } | |
| 1898 set_freg(cadr(cond_freg),mode); | |
| 1899 } else { | |
| 1900 if (cond_reg== -1) { | |
| 1901 cond_reg = get_register_var(0); | |
| 1902 if(car(cond_reg)!=REGISTER) error(-1); | |
| 1903 } | |
| 1904 set_creg(cadr(cond_reg),mode); | |
| 1905 } | |
| 107 | 1906 } |
| 1907 | |
| 1908 void | |
| 89 | 1909 gen_gdecl(char *n, int gpc) |
| 1910 { | |
| 102 | 1911 /* |
| 89 | 1912 if (stmode!=STATIC) |
| 99 | 1913 printf(".globl _%s\n",n); |
| 102 | 1914 */ |
| 89 | 1915 } |
| 1916 | |
| 1917 void | |
| 1918 align(int t) | |
| 1919 { | |
| 1920 if (t!=CHAR) { | |
| 1921 if (data_alignment & 1) | |
| 1922 printf("\t.align 2\n"); | |
| 1923 data_alignment = 0; | |
| 1924 } | |
| 1925 } | |
| 1926 | |
| 1927 void | |
| 1928 emit_data(int e, int t, NMTBL *n) | |
| 1929 { | |
| 1930 int l; | |
| 1931 double d; | |
| 1932 float f; | |
| 1933 char *name; | |
| 1934 name = n->nm; | |
| 1935 if(mode!=GDECL) { | |
| 1936 error(-1); return; | |
| 1937 } | |
| 1938 if (chk) return; | |
| 1939 if (n->dsp != -1) { | |
| 1940 n->dsp = -1; /* initiallized flag */ | |
| 102 | 1941 printf(".globl\t_%s\n",name); |
| 89 | 1942 data_mode(name); |
| 1943 align(t); | |
| 102 | 1944 printf("_%s:\n",name); |
| 89 | 1945 } else { |
| 1946 data_mode(0); | |
| 1947 } | |
| 1948 if(car(e)==CONST) { | |
| 1949 if (t==CHAR) { | |
| 1950 printf("\t.byte %d\n",cadr(e)); | |
| 1951 if (data_alignment>0) | |
| 1952 data_alignment++; | |
| 1953 gpc += 1; | |
| 1954 } else if (t==SHORT) { | |
| 1955 printf("\t.word %d\n",cadr(e)); | |
| 1956 if (data_alignment>0) data_alignment++; | |
| 1957 gpc += 2; | |
| 1958 } else { | |
| 1959 printf("\t.long %d\n",cadr(e)); | |
| 1960 gpc += size_of_int; | |
| 1961 } | |
| 1962 } else if(t==DOUBLE) { | |
| 1963 d = dcadr(e); | |
| 99 | 1964 printf("\t.long\t0x%x,0x%x\n",code_d2(d),code_d1(d)); |
| 89 | 1965 } else if(t==FLOAT) { |
| 1966 f = dcadr(e); | |
| 1967 printf("\t.long\t0x%x\n",*(int *)&f); | |
| 1968 } else if(t!=CHAR) { | |
| 1969 gpc += size_of_int; | |
| 1970 if(car(e)==ADDRESS&&car(cadr(e))==GVAR) { | |
| 116 | 1971 printf("\t.long _%s\n",((NMTBL *)cadr(cadr(e)))->nm); |
| 89 | 1972 } else if(car(e)==FNAME) { |
| 116 | 1973 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 109 | 1974 } else if(car(e)==GVAR) { |
| 116 | 1975 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 89 | 1976 } else if(car(e)==STRING) { |
| 1977 if (car(n->ty)!=ARRAY || cadr(n->ty)!=CHAR) { | |
| 1978 l = fwdlabel(); | |
| 102 | 1979 printf("\t.long L_%d\n",l); |
| 108 | 1980 printf(".cstring\n\t.align 2\n"); |
| 102 | 1981 printf("L_%d:\n",l); |
| 89 | 1982 output_mode = RODATA_EMIT_MODE; |
| 1983 } | |
| 1984 ascii((char *)cadr(e)); | |
| 1985 } else error(TYERR); | |
| 1986 } | |
| 1987 } | |
| 1988 | |
| 1989 void | |
| 1990 emit_data_closing(NMTBL *n) | |
| 1991 { | |
| 126 | 1992 #ifdef DOT_SIZE |
| 89 | 1993 int lb; |
| 126 | 1994 #endif |
| 89 | 1995 if (chk) return; |
| 1996 if (mode==GDECL) { | |
| 1997 data_mode(0); | |
| 126 | 1998 #ifdef DOT_SIZE |
| 89 | 1999 lb=fwdlabel(); |
| 102 | 2000 printf("L_%d:\n",lb); |
| 2001 printf("\t.size\t%s,L_%d-%s\n",n->nm,lb,n->nm); | |
| 126 | 2002 #endif |
| 89 | 2003 } |
| 2004 } | |
| 2005 | |
| 2006 void | |
| 2007 global_table(void) | |
| 2008 { | |
| 2009 NMTBL *n; | |
| 98 | 2010 int init; char *extrn; |
| 89 | 2011 init=0; |
| 2012 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 109 | 2013 if ((n->sc == GVAR) && n->dsp != -1) { |
| 89 | 2014 /* n->dsp = -1 means initialized global */ |
| 2015 if (init==0) { | |
| 2016 data_mode(0); | |
| 2017 init=1; | |
| 2018 } | |
| 97 | 2019 printf(".comm _%s,%d\n",n->nm,size(n->ty)); |
| 109 | 2020 } else if ((n->sc==STATIC) && n->dsp != -1) { |
| 2021 /* n->dsp = -1 means initialized global */ | |
| 2022 if (init==0) { | |
| 2023 data_mode(0); | |
| 2024 init=1; | |
| 2025 } | |
| 2026 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); | |
| 97 | 2027 } |
| 2028 } | |
| 2029 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 103 | 2030 if (is_code(n)||is_function(n)) { |
| 97 | 2031 extrn = n->nm; |
| 103 | 2032 if (n->sc==EXTRN1) { |
| 2033 data_mode(0); | |
| 2034 printf(".picsymbol_stub\n"); | |
| 97 | 2035 printf("L_%s$stub:\n",extrn); |
| 2036 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2037 printf("\tmflr r0\n"); | |
| 2038 printf("\tbcl 20,31,L0$_%s\n",extrn); | |
| 2039 printf("L0$_%s:\n",extrn); | |
| 2040 printf("\tmflr r11\n"); | |
| 2041 printf("\taddis r11,r11,ha16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2042 printf("\tmtlr r0\n"); | |
| 2043 printf("\tlwz r12,lo16(L_%s$lazy_ptr-L0$_%s)(r11)\n",extrn,extrn); | |
| 2044 printf("\tmtctr r12\n"); | |
| 2045 printf("\taddi r11,r11,lo16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2046 printf("\tbctr\n"); | |
| 2047 printf(".data\n"); | |
| 2048 printf(".lazy_symbol_pointer\n"); | |
| 2049 printf("L_%s$lazy_ptr:\n",extrn); | |
| 2050 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2051 printf("\t.long dyld_stub_binding_helper\n"); | |
| 103 | 2052 } else if (n->sc==FUNCTION||n->sc==CODE) { |
| 2053 text_mode(); | |
| 2054 printf("\t.set L_%s$stub,_%s\n",extrn,extrn); | |
| 109 | 2055 data_mode(0); |
| 111 | 2056 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",extrn,extrn); |
| 108 | 2057 } |
| 97 | 2058 } |
| 2059 } | |
| 109 | 2060 init=0; |
| 2061 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 2062 if (n->sc == GVAR) { | |
| 2063 if (init==0) { | |
| 119 | 2064 printf(".data\n"); |
| 109 | 2065 init=1; |
| 2066 } | |
| 116 | 2067 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",n->nm,n->nm); |
| 109 | 2068 } |
| 2069 } | |
| 97 | 2070 init = 0; |
| 2071 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 116 | 2072 if (is_code(n)||is_function(n)) continue; |
| 109 | 2073 if (n->sc==EXTRN1) { |
| 97 | 2074 if(init==0) { |
| 119 | 2075 printf(".data\n"); |
| 97 | 2076 printf(".non_lazy_symbol_pointer\n"); |
| 2077 init=1; | |
| 2078 } | |
| 2079 printf("L_%s$non_lazy_ptr:\n",n->nm); | |
| 2080 printf("\t.indirect_symbol _%s\n",n->nm); | |
| 2081 printf("\t.long\t0\n"); | |
| 89 | 2082 } |
| 2083 } | |
| 2084 } | |
| 2085 | |
| 2086 void | |
| 2087 local_table(void) | |
| 2088 { | |
| 2089 NMTBL *n; | |
| 2090 int init; | |
| 2091 init=0; | |
| 2092 /* static local variables */ | |
| 2093 for(n=ntable+GSYMS;n < &ntable[GSYMS+LSYMS];n++) { | |
| 2094 if (n->sc == GVAR) { | |
| 2095 if (init==0) { | |
| 2096 data_mode(0); | |
| 2097 init=1; | |
| 2098 } | |
| 97 | 2099 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); |
| 89 | 2100 } |
| 2101 } | |
| 2102 } | |
| 2103 | |
| 2104 void | |
| 2105 text_mode(void) | |
| 2106 { | |
| 2107 if (output_mode!=TEXT_EMIT_MODE) { | |
| 2108 printf(".text\n"); | |
| 2109 printf("\t.align 2\n"); | |
| 2110 output_mode = TEXT_EMIT_MODE; | |
| 2111 } | |
| 2112 } | |
| 2113 | |
| 2114 void | |
| 2115 data_mode(char *name) | |
| 2116 { | |
| 2117 if (output_mode!=DATA_EMIT_MODE) { | |
| 2118 printf(".data\n"); | |
| 2119 output_mode = DATA_EMIT_MODE; | |
| 2120 } | |
| 108 | 2121 /* |
| 89 | 2122 if (name) |
| 2123 printf("\t.type\t%s,@object\n",name); | |
| 108 | 2124 */ |
| 89 | 2125 } |
| 2126 | |
| 2127 /* floating point */ | |
| 2128 | |
| 96 | 2129 static int float_one_lib_used=0; |
| 2130 static char *float_one_lib[] = { | |
| 2131 ".data", | |
| 108 | 2132 /* ".literal8", */ |
| 96 | 2133 " .align 3", |
| 2134 "__float_one:", | |
| 2135 " .long 1065353216", | |
| 2136 ".text", | |
| 109 | 2137 /* ".set L__float_one$non_lazy_ptr,__float_one", */ |
| 96 | 2138 0 |
| 2139 }; | |
| 97 | 2140 static int float_zero_lib_used=0; |
| 2141 static char *float_zero_lib[] = { | |
| 2142 ".data", | |
| 108 | 2143 /* ".literal8", */ |
| 97 | 2144 " .align 3", |
| 2145 "__float_zero:", | |
| 2146 " .long 0", | |
| 2147 ".text", | |
| 109 | 2148 /* ".set L__float_zero$non_lazy_ptr,__float_zero", */ |
| 97 | 2149 0 |
| 2150 }; | |
| 2151 | |
| 96 | 2152 |
| 89 | 2153 |
| 2154 char * | |
| 2155 fstore(int d) | |
| 2156 { | |
| 90 | 2157 return (d?"stfd":"stfs"); |
| 89 | 2158 } |
| 2159 | |
| 2160 char * | |
| 2161 fload(int d) | |
| 2162 { | |
| 90 | 2163 return d?"lfd":"lfs"; |
| 89 | 2164 } |
| 2165 | |
| 95 | 2166 void |
| 97 | 2167 code_cmp_fregister(int e2) |
| 95 | 2168 { |
| 99 | 2169 char *frn,*rrn,*grn; |
| 2170 int greg,r; | |
| 2171 grn = register_name(greg = get_fregister()); | |
| 2172 frn = register_name(freg); | |
| 2173 float_zero_lib_used=1; | |
| 109 | 2174 r = get_ptr_cache(&float_zero); |
| 99 | 2175 rrn = register_name(r); |
| 108 | 2176 printf("\tlfs %s,0(%s)\n",grn,rrn); |
| 99 | 2177 printf("\tfcmpu cr0,%s,%s\n",grn,frn); |
| 2178 free_fregister(greg); | |
| 107 | 2179 fregv[freg]=0; |
| 99 | 2180 return; |
| 95 | 2181 } |
| 2182 | |
| 2183 void | |
| 107 | 2184 code_fregister(int e2,int freg) |
| 95 | 2185 { |
| 104 | 2186 if (freg!=e2) |
| 108 | 2187 printf("\tfmr %s,%s\n",fregister_name(freg),fregister_name(e2)); |
| 107 | 2188 fregv[freg]=1; |
| 95 | 2189 } |
| 2190 | |
| 103 | 2191 void code_dassign_gvar(int e2,int freg,int d) |
| 89 | 2192 { |
| 90 | 2193 int r; |
| 109 | 2194 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2195 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(r)); |
| 107 | 2196 fregv[freg]=1; |
| 89 | 2197 } |
| 2198 | |
| 103 | 2199 void code_dassign_lvar(int e2,int freg,int d) |
| 89 | 2200 { |
| 119 | 2201 lvar_intro(e2); |
| 2202 printf("\t%s %s,",fstore(d),fregister_name(freg)); | |
| 2203 lvar(e2); | |
| 107 | 2204 fregv[freg]=1; |
| 89 | 2205 } |
| 2206 | |
| 103 | 2207 void code_dassign(int e2,int freg,int d) |
| 89 | 2208 { |
| 108 | 2209 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(e2)); |
| 107 | 2210 fregv[freg]=1; |
| 89 | 2211 } |
| 2212 | |
| 111 | 2213 void |
| 2214 code_dassign_fregister(int e2,int d,int freg) { | |
| 2215 if (e2!=freg) | |
| 2216 printf("\tfmr %s,%s\n",fregister_name(e2),fregister_name(freg)); | |
| 2217 } | |
| 2218 | |
| 89 | 2219 static double d0 = 1.0; |
| 2220 | |
| 2221 int | |
| 2222 code_d1(double d) | |
| 2223 { | |
| 2224 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2225 return (i[1] == 0x3ff00000)?j[0]:j[1]; |
| 89 | 2226 } |
| 2227 | |
| 2228 int | |
| 2229 code_d2(double d) | |
| 2230 { | |
| 2231 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2232 return (i[1] == 0x3ff00000)?j[1]:j[0]; |
| 89 | 2233 } |
| 2234 | |
| 107 | 2235 void code_dconst(int e2,int freg) |
| 89 | 2236 { |
| 2237 int lb; | |
| 2238 double d = dcadr(e2); | |
| 90 | 2239 int r; |
| 97 | 2240 char *rrn,*frn; |
| 2241 frn = fregister_name(freg); | |
| 89 | 2242 if (d==0.0) { |
| 97 | 2243 float_zero_lib_used=1; |
| 109 | 2244 r = get_ptr_cache(&float_zero); |
| 98 | 2245 rrn = register_name(r); |
| 108 | 2246 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2247 return; |
| 89 | 2248 } |
| 2249 if (d==1.0) { | |
| 97 | 2250 float_one_lib_used=1; |
| 109 | 2251 r = get_ptr_cache(&float_one); |
| 98 | 2252 rrn = register_name(r); |
| 108 | 2253 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2254 return; |
| 89 | 2255 } |
| 97 | 2256 rrn = register_name((r=get_register())); |
| 108 | 2257 printf(" \t.data\n\t.align 3\n"); |
| 89 | 2258 lb=fwdlabel(); |
| 102 | 2259 printf("L_%d:\n",lb); |
| 99 | 2260 printf("\t.long\t0x%x,0x%x\n",code_d2(d),code_d1(d)); |
| 89 | 2261 if (output_mode==TEXT_EMIT_MODE) { |
| 2262 printf(".text\n"); | |
| 2263 } else { | |
| 2264 text_mode(); | |
| 2265 } | |
| 102 | 2266 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",rrn,lb,code_base); |
| 2267 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",rrn,lb,code_base,rrn); | |
| 108 | 2268 printf("\tlfd %s,0(%s)\n",frn,rrn); |
| 90 | 2269 free_register(r); |
| 107 | 2270 fregv[freg]=1; |
| 89 | 2271 } |
| 2272 | |
| 107 | 2273 void code_dneg(int freg) |
| 89 | 2274 { |
| 97 | 2275 char *frn = fregister_name(freg); |
| 95 | 2276 printf("\tfneg %s,%s\n",frn,frn); |
| 89 | 2277 } |
| 2278 | |
| 107 | 2279 void code_d2i(int freg,int creg) |
| 89 | 2280 { |
| 97 | 2281 char *frn = fregister_name(freg); |
| 95 | 2282 char *crn = register_name(creg); |
| 119 | 2283 int e2 = new_lvar(size_of_double); |
| 2284 free_lvar(e2); | |
| 93 | 2285 printf("\tfctiwz %s,%s\n",frn,frn); |
| 119 | 2286 lvar_intro(e2); |
| 2287 printf("\tstfd %s,",frn); lvar(e2); | |
| 2288 lvar_intro(e2+size_of_double-size_of_int); | |
| 2289 printf("\tlwz %s,",crn); lvar(e2+size_of_double-size_of_int); | |
| 90 | 2290 fregs[freg]=0; |
| 2291 regs[creg]=1; | |
| 89 | 2292 } |
| 2293 | |
| 91 | 2294 static int i2d_lib_used=0; |
| 2295 static char *i2d_lib[] = { | |
| 2296 ".data", | |
| 108 | 2297 /* ".literal8", */ |
| 91 | 2298 " .align 3", |
| 2299 "__i2dLC0:", | |
| 2300 " .long 1127219200", | |
| 2301 " .long -2147483648", | |
| 2302 ".text", | |
| 2303 " .align 2", | |
| 111 | 2304 "i2d_:", |
| 91 | 2305 " mflr r0", |
| 2306 " bcl 20,31,__i2dL1$pb", | |
| 2307 "__i2dL1$pb:", | |
| 2308 " mflr r10", | |
| 2309 " mtlr r0", | |
| 2310 " xoris r3,r3,0x8000", | |
| 116 | 2311 " stw r3,-28(r30)", |
| 91 | 2312 " lis r0,0x4330", |
| 116 | 2313 " stw r0,-32(r30)", |
| 2314 " lfd f0,-32(r30)", | |
| 91 | 2315 " addis r9,r10,ha16(__i2dLC0-__i2dL1$pb)", |
| 2316 " lfd f1,lo16(__i2dLC0-__i2dL1$pb)(r9)", | |
| 2317 " fsub f1,f0,f1", | |
| 2318 " blr", | |
| 2319 0 | |
| 2320 }; | |
| 2321 | |
| 107 | 2322 void code_i2d(int creg,int freg) |
| 89 | 2323 { |
| 95 | 2324 i2d_lib_used = 1; |
| 113 | 2325 clear_ptr_cache(); |
| 2326 code_save_stacks(); | |
| 104 | 2327 set_creg(RET_REGISTER,1); |
| 91 | 2328 printf("\tbl i2d_\n"); |
| 104 | 2329 set_freg(RET_FREGISTER,0); |
| 90 | 2330 fregs[freg]=1; |
| 2331 regs[creg]=0; | |
| 89 | 2332 } |
| 2333 | |
| 91 | 2334 static int d2u_lib_used=0; |
| 2335 static char *d2u_lib[] = { | |
| 108 | 2336 /* ".literal8", */ |
| 91 | 2337 " .align 3", |
| 2338 "__d2uLC0:", | |
| 2339 " .long 1105199104", | |
| 2340 " .long 0", | |
| 2341 ".text", | |
| 2342 " .align 2", | |
| 111 | 2343 "d2u_:", |
| 91 | 2344 " mflr r0", |
| 2345 " bcl 20,31,__d2uL1$pb", | |
| 2346 "__d2uL1$pb:", | |
| 2347 " mflr r10", | |
| 2348 " mtlr r0", | |
| 2349 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2350 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2351 " fcmpu cr0,f1,f0", | |
| 2352 " cror 2,1,2", | |
| 2353 " beq- cr0,__d2uL2", | |
| 2354 " fctiwz f0,f1", | |
| 116 | 2355 " stfd f0,-32(r30)", |
| 2356 " lwz r3,-28(r30)", | |
| 91 | 2357 " blr", |
| 2358 "__d2uL2:", | |
| 2359 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2360 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2361 " fsub f0,f1,f0", | |
| 2362 " fctiwz f0,f0", | |
| 116 | 2363 " stfd f0,-24(r30)", |
| 2364 " lwz r3,-20(r30)", | |
| 91 | 2365 " xoris r3,r3,0x8000", |
| 2366 " blr", | |
| 2367 0 | |
| 2368 }; | |
| 2369 | |
| 107 | 2370 void code_d2u(int freg,int creg) |
| 89 | 2371 { |
| 113 | 2372 code_save_stacks(); |
| 2373 clear_ptr_cache(); | |
| 91 | 2374 d2u_lib_used=1; |
| 104 | 2375 set_freg(RET_FREGISTER,1); |
| 111 | 2376 printf("\tbl d2u_\n"); |
| 104 | 2377 set_creg(RET_REGISTER,0); |
| 91 | 2378 fregs[freg]=1; |
| 2379 regs[creg]=0; | |
| 2380 } | |
| 90 | 2381 |
| 91 | 2382 static int u2d_lib_used=0; |
| 2383 static char *u2d_lib[] = { | |
| 2384 ".data", | |
| 108 | 2385 /* ".literal8", */ |
| 91 | 2386 " .align 3", |
| 2387 "__u2dLC1:", | |
| 2388 " .long 1127219200", | |
| 2389 " .long 0", | |
| 2390 ".text", | |
| 2391 " .align 2", | |
| 111 | 2392 "u2d_:", |
| 91 | 2393 " mflr r0", |
| 2394 " bcl 20,31,__u2dL2$pb", | |
| 2395 "__u2dL2$pb:", | |
| 2396 " mflr r10", | |
| 2397 " mtlr r0", | |
| 116 | 2398 " stw r3,-28(r30)", |
| 91 | 2399 " lis r0,0x4330", |
| 116 | 2400 " stw r0,-32(r30)", |
| 2401 " lfd f0,-32(r30)", | |
| 91 | 2402 " addis r9,r10,ha16(__u2dLC1-__u2dL2$pb)", |
| 2403 " lfd f1,lo16(__u2dLC1-__u2dL2$pb)(r9)", | |
| 2404 " fsub f1,f0,f1", | |
| 2405 " blr", | |
| 2406 0 | |
| 2407 }; | |
| 89 | 2408 |
| 107 | 2409 void code_u2d(int creg,int freg) |
| 89 | 2410 { |
| 115 | 2411 char *frn; |
| 2412 char *crn; | |
| 95 | 2413 u2d_lib_used = 1; |
| 113 | 2414 code_save_stacks(); |
| 2415 clear_ptr_cache(); | |
| 115 | 2416 frn = fregister_name(freg); |
| 2417 crn = register_name(creg); | |
| 2418 | |
| 91 | 2419 printf("\tmr r3,%s\n",crn); |
| 111 | 2420 printf("\tbl u2d_\n"); |
| 91 | 2421 printf("\tfmr %s,f1\n",frn); |
| 2422 fregs[freg]=1; | |
| 2423 regs[creg]=0; | |
| 89 | 2424 } |
| 2425 | |
| 107 | 2426 void code_drgvar(int e2,int d,int freg) |
| 89 | 2427 { |
| 91 | 2428 int r; |
| 109 | 2429 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2430 printf("\t%s %s,0(%s)\n",fload(d),fregister_name(freg),register_name(r)); |
| 107 | 2431 fregv[freg]=1; |
| 89 | 2432 } |
| 2433 | |
| 2434 | |
| 107 | 2435 void code_drlvar(int e2,int d,int freg) |
| 89 | 2436 { |
| 119 | 2437 lvar_intro(e2); |
| 2438 printf("\t%s %s,",fload(d),fregister_name(freg)); lvar(e2); | |
| 107 | 2439 fregv[freg]=1; |
| 89 | 2440 } |
| 2441 | |
| 2442 void code_cmp_drgvar(int e2) | |
| 2443 { | |
| 91 | 2444 int r; |
| 97 | 2445 char *frn=fregister_name(freg); |
| 2446 int g=get_fregister(); | |
| 2447 char *grn=fregister_name(g); | |
| 109 | 2448 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2449 printf("\t%s %s,0(%s)\n",fload(1),grn,register_name(r)); |
| 91 | 2450 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2451 free_fregister(g); |
| 107 | 2452 fregv[freg]=0; |
| 89 | 2453 } |
| 2454 | |
| 2455 void code_cmp_drlvar(int e2) | |
| 2456 { | |
| 97 | 2457 char *frn=fregister_name(freg); |
| 2458 int g=get_fregister(); | |
| 2459 char *grn=fregister_name(g); | |
| 108 | 2460 |
| 119 | 2461 lvar_intro(e2); |
| 2462 printf("\t%s %s,",fload(1),grn); lvar(e2); | |
| 91 | 2463 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2464 free_fregister(g); |
| 107 | 2465 fregv[freg]=0; |
| 89 | 2466 } |
| 2467 | |
| 2468 void dtosop(int op,int e1) | |
| 2469 { | |
| 127 | 2470 char *opn=""; |
| 97 | 2471 char *frn=fregister_name(freg); |
| 2472 char *grn=fregister_name(e1); | |
| 107 | 2473 fregv[freg]=1; |
| 89 | 2474 switch(op) { |
| 91 | 2475 case DADD: opn="fadd"; break; |
| 101 | 2476 case DSUB: opn="fsub"; break; |
| 2477 case DDIV: opn="fdiv"; break; | |
| 2478 case DMUL: opn="fmul"; break; | |
| 91 | 2479 case DCMP: |
| 108 | 2480 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2481 free_fregister(e1); |
| 2482 return; | |
| 91 | 2483 case DCMPGE: |
| 108 | 2484 printf("\tfcmpu cr7,%s,%s\n",frn,grn); |
| 101 | 2485 free_fregister(e1); |
| 2486 return; | |
| 89 | 2487 } |
| 91 | 2488 printf("\t%s %s,%s,%s\n",opn,frn,frn,grn); |
| 101 | 2489 free_fregister(e1); |
| 89 | 2490 } |
| 2491 | |
| 2492 void | |
| 2493 code_dassop(int op,int d) { | |
| 91 | 2494 /* we have lvalue in creg, applied floating value is in freg */ |
| 97 | 2495 char *frn=fregister_name(freg); |
| 102 | 2496 int xreg=emit_dpop(0); |
| 91 | 2497 char *crn=register_name(creg); |
| 2498 | |
| 108 | 2499 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 102 | 2500 dtosop(op,xreg); |
| 108 | 2501 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 102 | 2502 emit_dpop_free(xreg); |
| 107 | 2503 fregv[freg]=1; |
| 89 | 2504 } |
| 2505 | |
| 91 | 2506 |
| 89 | 2507 void |
| 107 | 2508 code_dpreinc(int e1,int e2,int d,int reg) { |
| 91 | 2509 char *frn; |
| 2510 char *crn; | |
| 2511 int g; | |
| 2512 char *grn,*drn; | |
| 2513 int r; | |
| 109 | 2514 r = get_ptr_cache(&float_one); |
| 96 | 2515 float_one_lib_used=1; |
| 91 | 2516 |
| 89 | 2517 g_expr(e2); |
| 91 | 2518 |
| 2519 crn=register_name(creg); | |
| 97 | 2520 frn=fregister_name(freg); |
| 91 | 2521 drn=register_name(r); |
| 97 | 2522 grn=fregister_name(g=get_fregister()); |
| 91 | 2523 |
| 108 | 2524 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2525 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2526 if (caddr(e1)>0) |
| 91 | 2527 printf("\tfadd %s,%s,%s\n",frn,frn,grn); |
| 89 | 2528 else |
| 91 | 2529 printf("\tfsub %s,%s,%s\n",frn,frn,grn); |
| 108 | 2530 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 97 | 2531 free_fregister(g); |
| 107 | 2532 fregv[freg]=1; |
| 89 | 2533 } |
| 2534 | |
| 2535 void | |
| 107 | 2536 code_dpostinc(int e1,int e2,int d,int reg) { |
| 91 | 2537 char *frn; |
| 2538 char *crn; | |
| 2539 int g; | |
| 2540 char *grn,*drn; | |
| 2541 int r; | |
| 109 | 2542 r = get_ptr_cache(&float_one); |
| 96 | 2543 float_one_lib_used=1; |
| 91 | 2544 |
| 89 | 2545 g_expr(e2); |
| 91 | 2546 |
| 2547 crn=register_name(creg); | |
| 97 | 2548 frn=fregister_name(freg); |
| 91 | 2549 drn=register_name(r); |
| 97 | 2550 grn=fregister_name(g=get_fregister()); |
| 91 | 2551 |
| 108 | 2552 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2553 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2554 if (caddr(e1)>0) |
| 91 | 2555 printf("\tfadd %s,%s,%s\n",grn,frn,grn); |
| 89 | 2556 else |
| 91 | 2557 printf("\tfsub %s,%s,%s\n",grn,frn,grn); |
| 108 | 2558 printf("\t%s %s,0(%s)\n",fstore(d),grn,crn); |
| 97 | 2559 free_fregister(g); |
| 107 | 2560 fregv[freg]=1; |
| 89 | 2561 } |
| 2562 | |
| 2563 void | |
| 2564 drexpr(int e1, int e2,int l1, int op) | |
| 2565 { | |
| 91 | 2566 g_expr(list3(((op==DOP+GE)?DCMPGE:DCMP),e1,e2)); |
| 89 | 2567 switch(op) { |
| 2568 case DOP+GE: | |
| 91 | 2569 printf("\tcror 2,29,30\n"); |
| 111 | 2570 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2571 break; |
| 2572 case DOP+GT: | |
| 111 | 2573 printf("\tble\tcr0,L_%d\n",l1); |
| 89 | 2574 break; |
| 2575 case DOP+EQ: | |
| 111 | 2576 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2577 break; |
| 2578 case DOP+NEQ: | |
| 111 | 2579 printf("\tbeq\tcr0,L_%d\n",l1); |
| 89 | 2580 break; |
| 2581 } | |
| 2582 } | |
| 2583 | |
| 2584 int emit_dpop(int e1) | |
| 2585 { | |
| 114 | 2586 int xreg,reg; |
| 97 | 2587 xreg=pop_fregister(); |
| 2588 if (xreg<= -REG_LVAR_OFFSET) { | |
| 114 | 2589 reg = get_fregister(); |
| 119 | 2590 code_drlvar(REG_LVAR_OFFSET+xreg,1,reg); |
| 117 | 2591 free_lvar(REG_LVAR_OFFSET+xreg); |
| 114 | 2592 fregv[reg]=1; xreg=reg; |
| 96 | 2593 } |
| 2594 return xreg; | |
| 89 | 2595 } |
| 2596 | |
| 2597 void emit_dpop_free(int e1) | |
| 2598 { | |
| 97 | 2599 free_fregister(e1); |
| 89 | 2600 } |
| 2601 | |
| 2602 void emit_dpush() | |
| 2603 { | |
| 97 | 2604 int new_reg; |
| 102 | 2605 if (freg_sp>MAX_MAX) error(-1); |
| 97 | 2606 new_reg = get_fregister(); |
| 2607 freg_stack[freg_sp++] = freg; /* push するかわりにレジスタを使う */ | |
| 2608 freg = new_reg; | |
| 2609 fregv[freg]=1; | |
| 89 | 2610 } |
| 2611 | |
| 95 | 2612 void |
| 2613 code_save_stacks() | |
| 2614 { | |
| 103 | 2615 int i,reg; |
| 101 | 2616 for(i=0;i<reg_sp;i++) { |
| 103 | 2617 if ((reg=reg_stack[i])>=0) { |
| 101 | 2618 code_assign_lvar( |
| 119 | 2619 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 101 | 2620 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 2621 } | |
| 2622 } | |
| 2623 for(i=0;i<freg_sp;i++) { | |
| 103 | 2624 if ((reg=freg_stack[i])>=0) { |
| 101 | 2625 code_dassign_lvar( |
| 119 | 2626 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 101 | 2627 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 2628 } | |
| 2629 } | |
| 96 | 2630 } |
| 2631 | |
| 2632 void | |
| 2633 emit_lib(char *p[]) | |
| 95 | 2634 { |
| 98 | 2635 while(*p) { |
| 2636 printf("%s\n",*p++); | |
| 96 | 2637 } |
| 2638 } | |
| 2639 | |
| 2640 void | |
| 2641 code_closing() | |
| 2642 { | |
| 2643 if (d2u_lib_used) emit_lib(d2u_lib); | |
| 2644 if (u2d_lib_used) emit_lib(u2d_lib); | |
| 2645 if (float_one_lib_used) emit_lib(float_one_lib); | |
| 98 | 2646 if (float_zero_lib_used) emit_lib(float_zero_lib); |
| 96 | 2647 if (i2d_lib_used) emit_lib(i2d_lib); |
| 97 | 2648 global_table(); |
| 108 | 2649 /* printf("\t.ident \"Micro-C compiled\"\n"); */ |
| 95 | 2650 } |
| 2651 | |
| 89 | 2652 /* end */ |
| 2653 |