Mercurial > hg > CbC > old > device
annotate mc-code-powerpc.c @ 123:5f180dc8d84e intel-fix
intel fix.
| author | kono |
|---|---|
| date | Mon, 24 Mar 2003 03:05:54 +0900 (2003-03-23) |
| parents | b884271bcab2 |
| children | e537da31dce3 |
| 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�Υ쥸������10�ĤޤǻȤ�*/ | |
| 122 | 56 int MAX_FREGISTER=31; |
| 119 | 57 #define REAL_MAX_REGISTER 32 /* PowerPC�Υ쥸������32�Ȥ�������*/ |
| 58 #define REAL_MAX_FREGISTER 32 /* PowerPC�Υ쥸������32�Ȥ�������*/ | |
| 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 | |
| 89 | 119 /* |
| 120 -16 -8 local2 <-- r30 | |
| 121 -12 -4 local1 | |
| 122 -8 8 arg3 | |
| 123 -4 4 arg2 | |
| 124 0 0 arg1 | |
| 125 local2 -20 4 0 (r5) | |
| 126 local1 <-- -16 0 local variable 0 (r4) | |
| 127 -12 <- disp_offset %ebp | |
| 128 r30 (sp) -8 | |
| 129 0 <- r1 | |
| 130 r1 (fp) 8 <- arg_offset | |
| 131 arg1 8 0 | |
| 132 arg2 12 4 | |
| 133 see enter/enter1/leave see code_enter | |
| 134 | |
| 97 | 135 r0 return value etc. |
| 136 r3-r10 input register | |
| 137 r22-r29 saved register variable | |
| 89 | 138 r30 stack pointer |
| 139 r31 0 | |
| 140 r1 frame pointer | |
| 97 | 141 |
| 142 f0 return value etc. | |
| 143 f1-r8 input register | |
| 144 f24-f31 saved register variable | |
| 116 | 145 |
| 146 <------r1_offset------------------------------> | |
| 147 <------------lvar_offset-------> | |
| 148 r+ +------------+---+---------------+----------+--------------+----+ - | |
| 122 | 149 callee arg xx register save local caller arg xx |
| 116 | 150 reg_save disp max_func_args*size_of_int |
| 119 | 151 lvar>0 lvar<0 lvar>0x1000 0000 |
| 89 | 152 */ |
| 122 | 153 int arg_offset = 24; int arg_offset1 = 24; int disp_offset = -12; |
| 154 #define func_disp_offset 60 | |
| 155 #define r1_offset func_disp_offset+12 | |
| 121 | 156 int code_disp_offset = 0; int jump_offset = 0; |
| 157 #define CODE_LVAR l+code_disp_offset | |
| 158 #define FUNC_LVAR l+disp_offset | |
| 159 #define CALLER_ARG (l-ARG_LVAR_OFFSET)+arg_offset1 | |
| 160 #define CALLEE_ARG l+arg_offset | |
| 89 | 161 |
| 116 | 162 void |
| 163 code_offset_set() | |
| 164 { | |
| 121 | 165 int l; |
| 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); | |
| 170 printf("# function %s\n",fnptr->nm); | |
| 171 l = ARG_LVAR_OFFSET; | |
| 172 printf("# offset call0\t%d\n",CALLER_ARG); | |
| 173 l = ARG_LVAR_OFFSET+max_func_args*size_of_int; | |
| 122 | 174 printf("# offset calln\t%d %d\n",CALLER_ARG,max_func_args*size_of_int); |
| 121 | 175 l = disp; |
| 122 | 176 printf("# offset lvarn\t%d %d\n",FUNC_LVAR+lvar_offsetv,disp); |
| 121 | 177 l = 0; |
| 178 printf("# offset lvar0\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 179 l = -reg_save; | |
| 180 printf("# offset regs\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 181 printf("# offset r1off\t%d\n",r1_offsetv); | |
| 182 l = 0; | |
| 183 printf("# offset carg0\t%d\n",CALLEE_ARG+r1_offsetv); | |
| 184 l = my_func_args; | |
| 122 | 185 printf("# offset cargn\t%d %d\n",CALLEE_ARG+r1_offsetv,my_func_args); |
| 116 | 186 } |
| 111 | 187 |
| 119 | 188 |
| 189 static void | |
| 190 lvar8(int l) | |
| 116 | 191 { |
| 192 if (fnptr->sc==CODE) { | |
| 119 | 193 printf("lo16(%d+L_%d)(r30)\n",CODE_LVAR,lvar_offset_label); |
| 194 } else if (l<0) { /* local variable */ | |
| 195 printf("lo16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 196 } else if (l>ARG_LVAR_OFFSET) { /* caller's arguments */ | |
| 197 printf("lo16(%d)(r30)\n",CALLER_ARG); | |
| 198 } else { /* callee's arguments */ | |
| 121 | 199 printf("lo16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 116 | 200 } |
| 201 } | |
| 111 | 202 |
| 119 | 203 /* if size of local variables / input variables is more then 64k, |
| 204 lo16 does not work. We have to use ha16 also. But we can't know | |
| 205 the exact size in one path compile. We may safely use lvar16ha | |
| 206 if disp or max_func_args > 32k. Of course this is reduantant for | |
| 207 smaller offset. But who cares who use very large local variables? | |
| 208 */ | |
| 96 | 209 |
| 119 | 210 #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
|
211 |
| 119 | 212 static void |
| 213 lvar16ha(int l) | |
| 214 { | |
| 215 if (fnptr->sc==CODE) { | |
| 216 printf("la r0,ha16(%d+L_%d)(r30)\n",CODE_LVAR,lvar_offset_label); | |
| 217 } else if (l<0) { /* local variable */ | |
| 218 printf("la r0,ha16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 219 } else if (l>ARG_LVAR_OFFSET) { /* caller's arguments */ | |
| 220 if (CALLER_ARG>32765) | |
| 221 printf("la r0,ha16(%d)(r30)\n",CALLER_ARG); | |
| 222 } else { /* callee's arguments */ | |
| 121 | 223 printf("la r0,ha16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 224 } |
| 225 } | |
| 95 | 226 |
| 119 | 227 static void |
| 228 lvar16lo(int l) | |
| 229 { | |
| 230 if (fnptr->sc==CODE) { | |
| 231 printf("lo16(%d+L_%d)(r0)\n",CODE_LVAR,lvar_offset_label); | |
| 232 } else if (l<0) { /* local variable */ | |
| 233 printf("lo16(%d+L_%d)(r0)\n",FUNC_LVAR,lvar_offset_label); | |
| 234 } else if (l>ARG_LVAR_OFFSET) { /* caller's arguments */ | |
| 235 if (CALLER_ARG>32765) | |
| 236 printf("lo16(%d)(r0)\n",CALLER_ARG); | |
| 237 else | |
| 238 printf("lo16(%d)(r30)\n",CALLER_ARG); | |
| 239 } else { /* callee's arguments */ | |
| 121 | 240 printf("lo16(%d+L_%d)(r0)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 241 } |
| 242 } | |
| 89 | 243 |
| 119 | 244 #define lvar_intro(i) if (LARGE_LVAR) lvar16ha(i) |
| 245 | |
| 246 #define lvar(i) if (LARGE_LVAR) lvar16lo(i); else lvar8(i) | |
| 89 | 247 |
| 119 | 248 void |
| 249 code_lvar(int e2,int creg) { | |
| 250 lvar_intro(e2); | |
| 251 printf("\tla %s,",register_name(creg)); | |
| 252 lvar(e2); | |
| 253 regv[creg]=1; | |
| 254 } | |
| 95 | 255 |
| 89 | 256 void |
| 257 code_init(void) | |
| 258 { | |
| 102 | 259 init_ptr_cache(); |
| 89 | 260 } |
| 261 | |
| 262 void | |
| 263 gexpr_code_init(void){ | |
| 264 regv[creg]=0; | |
| 96 | 265 fregv[freg]=0; |
| 266 } | |
| 267 | |
| 89 | 268 |
| 109 | 269 void |
| 270 code_arg_register() | |
| 271 { | |
| 272 code_save_input_registers(); | |
| 273 } | |
| 274 | |
| 117 | 275 |
| 89 | 276 int |
| 277 get_register(void) | |
| 278 { /* �Ȥ��Ƥ��ʤ��쥸������Ĵ�٤� */ | |
| 120 | 279 int i,reg; |
| 96 | 280 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { |
| 102 | 281 if (regs[i]) continue; /* �Ȥ��Ƥ��� */ |
| 282 regs[i]=USING_REG; /* ���Υ쥸������Ȥ����Ȥ������ */ | |
| 283 return i; /* ���ξ���ɽ���ֹ���֤� */ | |
| 284 } | |
| 285 /* INPUT_REG �� PTR_CACHE ��Ĥ֤� */ | |
| 286 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { | |
| 119 | 287 if (regs[i]==PTRC_REG) { |
| 98 | 288 clear_ptr_cache_reg(i); |
| 96 | 289 } else |
| 290 continue; | |
| 291 regs[i]=USING_REG; /* ���Υ쥸������Ȥ����Ȥ������ */ | |
| 292 return i; /* ���ξ���ɽ���ֹ���֤� */ | |
| 293 } | |
| 294 /* search register stack */ | |
| 295 for(i=0;i<reg_sp;i++) { | |
| 120 | 296 if ((reg=reg_stack[i])>=0) { |
| 96 | 297 code_assign_lvar( |
| 120 | 298 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 96 | 299 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 300 return reg; |
| 89 | 301 } |
| 302 } | |
| 96 | 303 /* �����Ƥ����꤬�ʤ��ʤ顢���顼 (���ä���ï���ȤäƤ��?) */ |
| 102 | 304 error(-1); return creg; |
| 89 | 305 } |
| 306 | |
| 93 | 307 int |
| 308 pop_register(void) | |
| 309 { /* �쥸���������ͤ���Ф� */ | |
| 310 return reg_stack[--reg_sp]; | |
| 311 } | |
| 312 | |
| 96 | 313 int |
| 97 | 314 get_fregister(void) |
| 96 | 315 { /* �Ȥ��Ƥ��ʤ��쥸������Ĵ�٤� */ |
| 103 | 316 int i,reg; |
| 96 | 317 for(i=MAX_TMP_FREG;i>MIN_TMP_FREG;i--) { |
| 102 | 318 if (fregs[i]) continue; /* �Ȥ��Ƥ��� */ |
| 319 fregs[i]=USING_REG; /* ���Υ쥸������Ȥ����Ȥ������ */ | |
| 320 return i; /* ���ξ���ɽ���ֹ���֤� */ | |
| 321 } | |
| 96 | 322 /* search register stack */ |
| 323 for(i=0;i<freg_sp;i++) { | |
| 103 | 324 if ((reg=freg_stack[i])>=0) { |
| 96 | 325 code_dassign_lvar( |
| 119 | 326 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 96 | 327 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 328 return reg; |
| 96 | 329 } |
| 330 } | |
| 331 /* �����Ƥ����꤬�ʤ��ʤ顢���顼 (���ä���ï���ȤäƤ��?) */ | |
| 98 | 332 error(REG_ERR); return freg; |
| 96 | 333 } |
| 334 | |
| 335 | |
| 336 int | |
| 97 | 337 pop_fregister(void) |
| 96 | 338 { /* �쥸���������ͤ���Ф� */ |
| 339 return freg_stack[--freg_sp]; | |
| 340 } | |
| 341 | |
| 93 | 342 void |
| 343 emit_pop_free(int xreg) | |
| 344 { | |
| 103 | 345 if (xreg>=0) |
| 346 free_register(xreg); | |
| 93 | 347 } |
| 348 | |
| 89 | 349 void |
| 350 free_register(int i) { /* ����ʤ��ʤä��쥸�������� */ | |
| 102 | 351 if (i<0||MAX_REGISTER<i) error(-1); |
| 89 | 352 regv[i]=regs[i]=0; |
| 353 } | |
| 354 | |
| 96 | 355 void |
| 97 | 356 free_fregister(int i) { /* ����ʤ��ʤä��쥸�������� */ |
| 102 | 357 if (i<0||MAX_FREGISTER<i) error(-1); |
| 96 | 358 fregv[i]=fregs[i]=0; |
| 359 } | |
| 360 | |
| 89 | 361 int |
| 105 | 362 get_input_fregister_var(int i,NMTBL *n) |
| 99 | 363 { |
| 102 | 364 if (i<0||MAX_FREGISTER<i+MIN_TMP_FREG) error(-1); |
| 105 | 365 return list3(DREGISTER,i+MIN_TMP_FREG,(int)n); |
| 99 | 366 } |
| 367 | |
| 368 int | |
| 105 | 369 get_input_register_var(int i,NMTBL *n) |
| 99 | 370 { |
| 102 | 371 if (i<0||MAX_REGISTER<i+MIN_TMP_REG) error(-1); |
| 105 | 372 return list3(REGISTER,i+MIN_TMP_REG,(int)n); |
| 99 | 373 } |
| 374 | |
| 375 int | |
| 103 | 376 free_register_count(void) |
| 377 { | |
| 378 int i,count,fcount; | |
| 379 fcount = count = 0; | |
| 380 for(i=0;i<MAX_REGISTER;i++) { | |
| 381 if (! regs[i] && ! regv[i]) count++; | |
| 382 } | |
| 383 for(i=0;i<MAX_FREGISTER;i++) { | |
| 384 if (! fregs[i] && ! fregv[i]) fcount++; | |
| 385 } | |
| 386 fprintf(stderr,"# free reg %d freg %d\n",count,fcount); | |
| 387 return count+fcount; | |
| 388 } | |
| 389 | |
| 390 int | |
| 89 | 391 register_full(void) |
| 392 { | |
| 393 int i; | |
| 394 for(i=0;i<MAX_REGISTER;i++) { | |
| 395 if (! regs[i]) { | |
| 396 return 0; | |
| 397 } | |
| 398 } | |
| 399 return 1; | |
| 400 } | |
| 401 | |
| 402 void | |
| 403 free_all_register(void) | |
| 404 { | |
| 405 int i; | |
| 97 | 406 for(i=0;i<MAX_REGISTER;i++) { regs[i]=0; regv[i]=0; } |
| 407 for(i=0;i<MAX_FREGISTER;i++) { fregs[i]=0; fregv[i]=0; } | |
| 89 | 408 creg = get_register(); |
| 97 | 409 freg = get_fregister(); |
| 107 | 410 set_creg(CREG_REGISTER,0); |
| 411 set_freg(FREG_FREGISTER,0); | |
| 89 | 412 return; |
| 413 } | |
| 414 | |
| 415 void | |
| 416 register_usage(char *s) | |
| 417 { | |
| 418 int i; | |
| 419 if (chk) return; | |
| 109 | 420 if (!lsrc) return; |
| 89 | 421 printf("# %d: %s:",lineno,s); |
| 101 | 422 printf(" creg=%s fgreg=%s\n# regs:",register_name(creg),fregister_name(freg)); |
| 423 #if 0 | |
| 424 for(i=0;i<MAX_REGISTER;i++) { | |
| 425 printf("%d",regv[i]); | |
| 426 } | |
| 427 printf(":"); | |
| 428 #endif | |
| 89 | 429 for(i=0;i<MAX_REGISTER;i++) { |
| 430 printf("%d",regs[i]); | |
| 431 } | |
| 101 | 432 printf("\n# freg:"); |
| 433 for(i=0;i<MAX_FREGISTER;i++) { | |
| 434 printf("%d",fregs[i]); | |
| 89 | 435 } |
| 436 #if 0 | |
| 93 | 437 printf(" regs_stack",register_name(creg),register_name(dreg)); |
| 89 | 438 for(i=reg_sp;i>=0;i--) { |
| 439 if(reg_stack[i]>=0) | |
| 440 printf(" %s",register_name(reg_stack[i],0)); | |
| 441 } | |
| 442 #endif | |
| 443 printf("\n"); | |
| 444 } | |
| 445 | |
| 446 void | |
| 447 gexpr_init(void) | |
| 448 { | |
| 449 while(reg_sp > 0) { | |
| 450 free_register(reg_stack[--reg_sp]); | |
| 451 } | |
| 108 | 452 if (cond_freg!=-1) { |
| 453 if(car(cond_freg)==DREGISTER) free_fregister(cadr(cond_freg)); | |
| 454 cond_freg=-1; | |
| 455 } | |
| 456 if (cond_reg!=-1) { | |
| 457 if(car(cond_reg)==REGISTER) free_register(cadr(cond_reg)); | |
| 458 cond_reg=-1; | |
| 459 } | |
| 89 | 460 text_mode(); |
| 461 gexpr_code_init(); | |
| 462 register_usage("gexpr_init"); | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void | |
| 467 emit_init(void) | |
| 468 { | |
| 469 free_all_register(); | |
| 110 | 470 max_reg_var=-1; max_freg_var=-1; |
| 89 | 471 reg_sp = 0; |
| 123 | 472 freg_sp = 0; |
| 89 | 473 text_mode(); |
| 474 } | |
| 475 | |
| 476 int | |
| 477 register_var(int r) { | |
| 99 | 478 return r; |
| 89 | 479 } |
| 480 | |
| 97 | 481 |
| 89 | 482 int |
| 105 | 483 get_register_var(NMTBL *n) |
| 89 | 484 { |
| 485 int i; | |
| 99 | 486 for(i=0;i<REG_VAR_BASE-REG_VAR_MIN;i++) { |
| 96 | 487 if (! regs[REG_VAR_BASE-i]) { /* �Ȥ��Ƥ��ʤ��ʤ� */ |
| 488 regs[REG_VAR_BASE-i]=USING_REG; /* ���Υ쥸������Ȥ����Ȥ������ */ | |
| 93 | 489 regv[REG_VAR_BASE-i]=0; |
| 97 | 490 if (i>max_reg_var) max_reg_var=i; |
| 122 | 491 /* ���ξ���ɽ���ֹ���֤� */ |
| 492 return list3(REGISTER,REG_VAR_BASE-i,(int)n); | |
| 96 | 493 } |
| 494 } | |
| 104 | 495 return list2(LVAR,new_lvar(size_of_int)); |
| 96 | 496 } |
| 497 | |
| 498 int | |
| 97 | 499 fregister_var(int r) { |
| 99 | 500 return r; |
| 96 | 501 } |
| 502 | |
| 503 int | |
| 105 | 504 get_fregister_var(NMTBL *n) |
| 96 | 505 { |
| 506 int i; | |
| 99 | 507 for(i=0;i<FREG_VAR_BASE-REG_VAR_MIN;i++) { |
| 96 | 508 if (! regs[FREG_VAR_BASE-i]) { /* �Ȥ��Ƥ��ʤ��ʤ� */ |
| 105 | 509 regs[FREG_VAR_BASE-i]=USING_REG; /*���Υ쥸������Ȥ����Ȥ������*/ |
| 96 | 510 regv[FREG_VAR_BASE-i]=0; |
| 97 | 511 if (i>max_freg_var) max_freg_var=i; |
| 122 | 512 /* ���ξ���ɽ���ֹ���֤� */ |
| 513 return list3(DREGISTER,FREG_VAR_BASE-i,(int)n); | |
| 89 | 514 } |
| 515 } | |
| 104 | 516 return list2(LVAR,new_lvar(size_of_double)); |
| 89 | 517 } |
| 518 | |
| 519 void | |
| 107 | 520 emit_push() |
| 89 | 521 { |
| 522 int new_reg; | |
| 102 | 523 if (reg_sp>MAX_MAX) error(-1); |
| 89 | 524 new_reg = get_register(); |
| 97 | 525 reg_stack[reg_sp++] = creg; /* push ���뤫���˥쥸������Ȥ� */ |
| 526 creg = new_reg; | |
| 527 regv[creg]=1; | |
| 89 | 528 } |
| 529 | |
| 530 int | |
| 93 | 531 emit_pop(int type) |
| 89 | 532 { |
| 112 | 533 int xreg,reg; |
| 97 | 534 xreg=pop_register(); |
| 535 if (xreg<= -REG_LVAR_OFFSET) { | |
| 112 | 536 reg = get_register(); |
| 119 | 537 code_rlvar(REG_LVAR_OFFSET+xreg,reg); |
| 117 | 538 free_lvar(REG_LVAR_OFFSET+xreg); |
| 112 | 539 xreg = reg; |
| 89 | 540 regv[xreg]=1; |
| 97 | 541 } |
| 89 | 542 return xreg; |
| 543 } | |
| 544 | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
545 static int code_base; |
| 89 | 546 |
| 547 #define MAX_PTR_CACHE 10 | |
| 548 | |
| 549 int ptr_cache=0; | |
| 550 | |
| 93 | 551 void |
| 90 | 552 init_ptr_cache() |
| 553 { | |
| 554 int i; | |
| 555 for(i=0;i<MAX_PTR_CACHE;i++) { | |
| 556 ptr_cache=glist3(0,ptr_cache,0); | |
| 557 } | |
| 558 } | |
| 559 | |
| 95 | 560 void |
| 96 | 561 clear_ptr_cache_reg(int r) |
| 562 { | |
| 563 int ptcptr=ptr_cache; | |
| 564 while(ptcptr) { | |
| 565 if(car(ptcptr)&&caddr(ptcptr)==r) { | |
| 566 car(ptcptr)=0; | |
| 567 caddr(ptcptr)=0; | |
| 102 | 568 free_register(r); |
| 98 | 569 return; |
| 96 | 570 } |
| 571 ptcptr=cadr(ptcptr); | |
| 572 } | |
| 573 } | |
| 574 | |
| 575 void | |
| 89 | 576 clear_ptr_cache() |
| 577 { | |
| 578 int ptcptr=ptr_cache; | |
| 579 while(ptcptr) { | |
| 580 if(car(ptcptr)) | |
| 581 free_register(caddr(ptcptr)); | |
| 582 car(ptcptr)=0; | |
| 583 caddr(ptcptr)=0; | |
| 584 ptcptr=cadr(ptcptr); | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 | |
| 589 int | |
| 109 | 590 get_ptr_cache(NMTBL *nptr) |
| 89 | 591 { |
| 592 int r; | |
| 593 int ptcptr=ptr_cache; | |
| 109 | 594 int g = (int)nptr; |
| 89 | 595 int p,p1; |
| 95 | 596 char *rrn; |
| 89 | 597 |
| 598 while(ptcptr) { | |
| 599 if(car(ptcptr)==g) return caddr(ptcptr); | |
| 600 p1=p; p=ptcptr; | |
| 601 ptcptr=cadr(ptcptr); | |
| 602 } | |
| 603 cadr(p1)=0; /* remove the last one */ | |
| 604 cadr(p) = ptr_cache; /* connect current queue to the last one */ | |
| 605 ptr_cache = p; /* now the last one is the top */ | |
| 606 if (!caddr(p)) { | |
| 96 | 607 if((r=get_register())) { |
| 608 caddr(p)=r; regs[r]=PTRC_REG; | |
| 609 } else | |
| 610 r=creg; /* this can't happen */ | |
| 102 | 611 car(p)=g; |
| 89 | 612 } |
| 613 rrn = register_name(r); | |
| 109 | 614 if (nptr->sc==STATIC) { |
| 615 printf("\taddis %s,r31,ha16(_%s-L_%d)\n", | |
| 616 rrn,nptr->nm,code_base); | |
| 617 printf("\tla %s,lo16(_%s-L_%d)(%s)\n", | |
| 618 rrn,nptr->nm,code_base,rrn); | |
| 619 } else { | |
| 620 printf("\taddis %s,r31,ha16(L_%s$non_lazy_ptr-L_%d)\n", | |
| 621 rrn,nptr->nm,code_base); | |
| 622 printf("\tlwz %s,lo16(L_%s$non_lazy_ptr-L_%d)(%s)\n", | |
| 623 rrn,nptr->nm,code_base,rrn); | |
| 624 } | |
| 89 | 625 return r; |
| 626 } | |
| 627 | |
| 628 void | |
| 92 | 629 code_label(int labelno) |
| 630 { | |
| 631 clear_ptr_cache(); | |
| 102 | 632 printf("L_%d:\n",labelno); |
| 92 | 633 } |
| 634 | |
| 635 void | |
| 107 | 636 code_gvar(int e1,int creg) { |
| 89 | 637 int r; |
| 109 | 638 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 89 | 639 if(r!=creg) |
| 640 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); | |
| 107 | 641 regv[creg]=1; |
| 89 | 642 return; |
| 643 } | |
| 644 | |
| 645 void | |
| 107 | 646 code_rgvar(int e1,int creg) { |
| 108 | 647 printf("\tlwz %s,0(%s)\n",register_name(creg), |
| 109 | 648 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 107 | 649 regv[creg]=1; |
| 89 | 650 } |
| 651 | |
| 652 void | |
| 107 | 653 code_crgvar(int e1,int creg){ |
| 654 char *crn = register_name(creg); | |
| 108 | 655 printf("\tlbz %s,0(%s)\n",crn, |
| 109 | 656 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 107 | 657 printf("\textsb %s,%s\n",crn,crn); |
| 658 regv[creg]=1; | |
| 89 | 659 } |
| 660 | |
| 661 | |
| 662 void | |
| 107 | 663 code_register(int e2,int creg) { |
| 90 | 664 if (creg!=e2) |
| 665 printf("\tmr %s,%s\n",register_name(creg),register_name(e2)); | |
| 107 | 666 regv[creg]=1; |
| 89 | 667 } |
| 668 | |
| 669 | |
| 670 void | |
| 95 | 671 code_rlvar(int e2,int reg) { |
| 119 | 672 lvar_intro(e2); |
| 673 printf("\tlwz %s,",register_name(reg)); | |
| 674 lvar(e2); | |
| 107 | 675 regv[creg]=1; |
| 89 | 676 } |
| 677 | |
| 678 | |
| 679 void | |
| 95 | 680 code_crlvar(int e2,int reg) { |
| 119 | 681 lvar_intro(e2); |
| 682 printf("\tlbz %s,",register_name(reg)); | |
| 683 lvar(e2); | |
| 95 | 684 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); |
| 107 | 685 regv[reg]=1; |
| 89 | 686 } |
| 687 | |
| 688 | |
| 689 void | |
| 109 | 690 code_fname(NMTBL *n,int creg) { |
| 89 | 691 int r; |
| 109 | 692 r = get_ptr_cache(n); |
| 89 | 693 if(r!=creg) |
| 95 | 694 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); |
| 107 | 695 regv[creg]=1; |
| 89 | 696 return; |
| 697 } | |
| 698 | |
| 699 | |
| 700 void | |
| 107 | 701 code_const(int e2,int creg) { |
| 89 | 702 char *crn = register_name(creg); |
| 703 if (-32768<e2&&e2<32768) | |
| 704 printf("\tli %s,%d\n",crn,e2); | |
| 705 else { | |
| 706 printf("\tlis %s,ha16(%d)\n",crn,e2); | |
| 707 printf("\taddi %s,%s,lo16(%d)\n",crn,crn,e2); | |
| 708 } | |
| 107 | 709 regv[creg]=1; |
| 89 | 710 } |
| 711 | |
| 712 | |
| 713 void | |
| 107 | 714 code_neg(int creg) { |
| 93 | 715 printf("\tneg %s,%s\n", register_name(creg), register_name(creg)); |
| 89 | 716 } |
| 717 | |
| 718 | |
| 719 void | |
| 107 | 720 code_not(int creg) { |
| 89 | 721 printf("\tnor %s,%s,%s\n", |
| 722 register_name(creg), register_name(creg),register_name(creg)); | |
| 723 } | |
| 724 | |
| 725 | |
| 726 void | |
| 107 | 727 code_lnot(int creg) { |
| 89 | 728 printf("\tsubfic r0,%s,0\n", register_name(creg)); |
| 729 printf("\tadde %s,r0,%s\n", register_name(creg),register_name(creg)); | |
| 730 } | |
| 731 | |
| 732 void | |
| 107 | 733 code_preinc(int e1,int e2,int reg) { |
| 89 | 734 char *xrn,*drn; |
| 735 int i,dreg; | |
| 736 if (car(e2)==REGISTER) { | |
| 95 | 737 printf("\taddi %s,%s,%d\n", |
| 738 register_name(cadr(e2)),register_name(cadr(e2)), caddr(e1)); | |
| 118 | 739 if (cadr(reg)!=e2) |
| 740 printf("\tmr %s,%s\n",register_name(cadr(reg)),register_name(e2)); | |
| 107 | 741 regv[reg]=1; |
| 89 | 742 return; |
| 743 } | |
| 744 g_expr(e2); | |
| 745 xrn = register_name(creg); | |
| 746 dreg=get_register(); if (!dreg) error(-1); | |
| 747 drn = register_name(dreg); | |
| 108 | 748 printf("\tlwz %s,0(%s)\n",drn,xrn); |
| 89 | 749 printf("\taddi %s,%s,%d\n",drn,drn,caddr(e1)); |
| 108 | 750 printf("\tstw %s,0(%s)\n",drn,xrn); |
| 89 | 751 i=creg;creg=dreg;dreg=i; |
| 107 | 752 regv[creg]=1; |
| 89 | 753 free_register(dreg); |
| 754 } | |
| 755 | |
| 756 | |
| 757 void | |
| 107 | 758 code_postinc(int e1,int e2,int reg) { |
| 89 | 759 char *xrn,*crn,*nrn; |
| 95 | 760 int dreg,nreg,i; |
| 89 | 761 if (car(e2)==REGISTER) { |
| 107 | 762 printf("\tmr %s,%s\n",register_name(reg),register_name(cadr(e2))); |
| 89 | 763 printf("\taddi %s,%s,%d\n", |
| 95 | 764 register_name(cadr(e2)),register_name(cadr(e2)),caddr(e1)); |
| 107 | 765 regv[reg]=1; |
| 89 | 766 return; |
| 767 } | |
| 768 g_expr(e2); | |
| 101 | 769 crn = register_name(creg); |
| 89 | 770 dreg=get_register(); if (!dreg) error(-1); |
| 771 xrn = register_name(dreg); | |
| 772 nreg=get_register(); if (!nreg) error(-1); | |
| 773 nrn = register_name(nreg); | |
| 108 | 774 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 775 printf("\taddi %s,%s,%d\n",nrn,xrn,caddr(e1)); |
| 108 | 776 printf("\tstw %s,0(%s)\n",nrn,crn); |
| 89 | 777 i=creg;creg=dreg;dreg=i; |
| 778 free_register(nreg); | |
| 779 free_register(dreg); | |
| 780 regv[creg]=1; | |
| 781 } | |
| 782 | |
| 783 | |
| 784 void | |
| 107 | 785 code_cpostinc(int e1,int e2,int reg) { |
| 95 | 786 char *xrn,*crn,*nrn; |
| 89 | 787 int i,nreg,dreg; |
| 788 if (car(e2)==REGISTER) { | |
| 108 | 789 printf("\tlbz %s,0(%s)\n",register_name(reg),register_name(cadr(e2))); |
| 107 | 790 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); |
| 89 | 791 printf("\taddi %s,%s,%d\n", |
| 792 register_name(cadr(e2)),register_name(cadr(e2)),caddr(e1)); | |
| 107 | 793 regv[reg]=1; |
| 89 | 794 return; |
| 795 } | |
| 796 g_expr(e2); | |
| 797 crn = register_name(creg); | |
| 798 dreg=get_register(); if (!dreg) error(-1); | |
| 799 xrn = register_name(dreg); | |
| 800 nreg=get_register(); if (!nreg) error(-1); | |
| 801 nrn = register_name(nreg); | |
| 108 | 802 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 803 printf("\tlbz %s,0(%s)\n",nrn,xrn); | |
| 89 | 804 printf("\textsb %s,%s\n",nrn,nrn); |
| 95 | 805 printf("\taddi %s,%s,%d\n", xrn,xrn,caddr(e1)); |
| 108 | 806 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 807 i=creg;creg=nreg;nreg=i; |
| 808 free_register(nreg); | |
| 809 free_register(dreg); | |
| 810 regv[creg]=1; | |
| 811 } | |
| 812 | |
| 813 | |
| 814 void | |
| 107 | 815 code_cpreinc(int e1,int e2,int reg) { |
| 95 | 816 char *xrn,*crn,*nrn; |
| 89 | 817 int i,nreg,dreg; |
| 818 if (car(e2)==REGISTER) { | |
| 107 | 819 printf("\tlbzu %s,%d(%s)\n",register_name(reg),caddr(e1),register_name(cadr(e2))); |
| 820 printf("\textsb %s,%s\n",register_name(reg),register_name(reg)); | |
| 821 regv[reg]=1; | |
| 89 | 822 return; |
| 823 } | |
| 824 g_expr(e2); | |
| 825 crn = register_name(creg); | |
| 826 dreg=get_register(); if (!dreg) error(-1); | |
| 827 xrn = register_name(dreg); | |
| 828 nreg=get_register(); if (!nreg) error(-1); | |
| 829 nrn = register_name(nreg); | |
| 108 | 830 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 831 printf("\tlbzu %s,%d(%s)\n",nrn,caddr(e1),xrn); |
| 108 | 832 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 833 printf("\textsb %s,%s\n",nrn,nrn); |
| 834 i=creg;creg=nreg;nreg=i; | |
| 835 free_register(nreg); | |
| 836 free_register(dreg); | |
| 837 regv[creg]=1; | |
| 838 } | |
| 839 | |
| 840 | |
| 841 void | |
| 107 | 842 code_cpostdec(int e1,int e2,int reg) { |
| 95 | 843 char *xrn,*crn,*nrn; |
| 89 | 844 int i,nreg,dreg; |
| 845 if (car(e2)==REGISTER) { | |
| 107 | 846 crn=register_name(reg); |
| 89 | 847 xrn=register_name(cadr(e2)); |
| 108 | 848 printf("\tlbz %s,0(%s)\n",crn,xrn); |
| 89 | 849 printf("\taddi %s,%s,%d\n",xrn,xrn,caddr(e1)); |
| 850 printf("\textsb %s,%s\n",crn,crn); | |
| 107 | 851 regv[reg]=1; |
| 89 | 852 return; |
| 853 } | |
| 854 g_expr(e2); | |
| 855 crn = register_name(creg); | |
| 856 dreg=get_register(); if (!dreg) error(-1); | |
| 857 xrn = register_name(dreg); | |
| 858 nreg=get_register(); if (!nreg) error(-1); | |
| 859 nrn = register_name(nreg); | |
| 108 | 860 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 861 printf("\tlbz %s,0(%s)\n",nrn,xrn); | |
| 89 | 862 printf("\taddi %s,%s,%d\n",xrn,xrn,caddr(e1)); |
| 108 | 863 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 864 printf("\textsb %s,%s\n",nrn,nrn); |
| 865 i=creg;creg=nreg;nreg=i; | |
| 866 free_register(nreg); | |
| 867 free_register(dreg); | |
| 868 regv[creg]=1; | |
| 869 } | |
| 870 | |
| 871 | |
| 872 void | |
| 107 | 873 code_cpredec(int e1,int e2,int reg) { |
| 95 | 874 char *xrn,*crn,*nrn; |
| 89 | 875 int i,nreg,dreg; |
| 876 if (car(e2)==REGISTER) { | |
| 107 | 877 crn=register_name(reg); |
| 89 | 878 xrn=register_name(cadr(e2)); |
| 879 printf("\tlbzu %s,%d(%s)\n",crn,caddr(e1),xrn); | |
| 880 printf("\textsb %s,%s\n",crn,crn); | |
| 107 | 881 regv[reg]=1; |
| 89 | 882 return; |
| 883 } | |
| 884 g_expr(e2); | |
| 885 crn = register_name(creg); | |
| 886 dreg=get_register(); if (!dreg) error(-1); | |
| 887 xrn = register_name(dreg); | |
| 888 nreg=get_register(); if (!nreg) error(-1); | |
| 889 nrn = register_name(nreg); | |
| 108 | 890 printf("\tlwz %s,0(%s)\n",xrn,crn); |
| 89 | 891 printf("\tlbzu %s,%d(%s)\n",nrn,caddr(e1),xrn); |
| 108 | 892 printf("\tstw %s,0(%s)\n",xrn,crn); |
| 89 | 893 printf("\textsb %s,%s\n",nrn,nrn); |
| 894 i=creg;creg=nreg;nreg=i; | |
| 895 free_register(nreg); | |
| 896 free_register(dreg); | |
| 897 regv[creg]=1; | |
| 898 } | |
| 899 | |
| 900 | |
| 901 void | |
| 107 | 902 code_return(int creg) { |
| 95 | 903 char *crn = register_name(creg); |
| 102 | 904 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,retcont,code_base); |
| 905 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,retcont,code_base,crn); | |
| 89 | 906 } |
| 907 | |
| 908 | |
| 909 void | |
| 107 | 910 code_environment(int creg) { |
| 89 | 911 printf("\tmr %s,r1\n",register_name(creg)); |
| 912 } | |
| 913 | |
| 914 | |
| 915 void | |
| 116 | 916 code_bool(int e1) { |
| 89 | 917 char *xrn; |
| 918 int e2,e3; | |
| 919 b_expr(e1,1,e2=fwdlabel(),1); /* including > < ... */ | |
| 920 xrn = register_name(creg); | |
| 921 printf("\tli %s,0\n",xrn); | |
| 922 jmp(e3=fwdlabel()); | |
| 923 fwddef(e2); | |
| 924 printf("\tli %s,1\n",xrn); | |
| 925 fwddef(e3); | |
| 926 } | |
| 927 | |
| 928 char * | |
| 929 code_gt(int cond) { | |
| 113 | 930 return (cond?"gt":"le"); |
| 89 | 931 } |
| 932 | |
| 933 char * | |
| 934 code_ugt(int cond) { | |
| 113 | 935 return (cond?"gt":"le"); |
| 89 | 936 } |
| 937 | |
| 938 char * | |
| 939 code_ge(int cond) { | |
| 113 | 940 return (cond?"ge":"lt"); |
| 89 | 941 } |
| 942 | |
| 943 char * | |
| 944 code_uge(int cond) { | |
| 113 | 945 return (cond?"ge":"lt"); |
| 89 | 946 } |
| 947 | |
| 948 char * | |
| 949 code_eq(int cond) { | |
| 113 | 950 return (cond?"eq":"ne"); |
| 89 | 951 } |
| 952 | |
| 953 void | |
| 954 code_cmp_crgvar(int e1) { | |
| 955 int r; | |
| 956 char *crn = register_name(creg); | |
| 109 | 957 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 108 | 958 printf("\tlbz %s,0(%s)\n",crn,register_name(r)); |
| 89 | 959 printf("\tcmpwi cr0,%s,0\n",crn); |
| 107 | 960 regv[creg]=0; |
| 89 | 961 } |
| 962 | |
| 963 | |
| 964 void | |
| 119 | 965 code_cmp_crlvar(int e2) { |
| 89 | 966 char *crn = register_name(creg); |
| 119 | 967 lvar_intro(e2); |
| 968 printf("\tlbz %s,",crn); | |
| 969 lvar(e2); | |
| 107 | 970 code_cmp_register(creg); |
| 971 regv[creg]=0; | |
| 89 | 972 } |
| 973 | |
| 974 | |
| 975 void | |
| 976 code_cmp_rgvar(int e1) { | |
| 977 int r; | |
| 978 char *crn = register_name(creg); | |
| 109 | 979 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 108 | 980 printf("\tlwz %s,0(%s)\n",crn,register_name(r)); |
| 89 | 981 code_cmp_register(creg); |
| 107 | 982 regv[creg]=0; |
| 89 | 983 } |
| 984 | |
| 985 | |
| 986 void | |
| 119 | 987 code_cmp_rlvar(int e2) { |
| 89 | 988 char *crn = register_name(creg); |
| 119 | 989 lvar_intro(e2); |
| 990 printf("\tlwz %s,",crn); | |
| 991 lvar(e2); | |
| 89 | 992 code_cmp_register(creg); |
| 107 | 993 regv[creg]=0; |
| 89 | 994 } |
| 995 | |
| 996 | |
| 997 void | |
| 998 code_cmp_register(int e2) { | |
| 999 printf("\tcmpwi cr0,%s,0\n",register_name(e2)); | |
| 1000 } | |
| 1001 | |
| 1002 | |
| 1003 void | |
| 1004 ascii(char *s) | |
| 1005 { | |
| 1006 printf("\t.ascii \""); | |
| 1007 while(*s) { | |
| 1008 if (*s=='\n') | |
| 1009 printf("%cn",92); | |
| 1010 else if (*s<' ') | |
| 1011 printf("%c%03o",92,*s); | |
| 116 | 1012 else if (*s=='\\') |
| 1013 printf("\\\\"); | |
| 89 | 1014 else if (*s==34) |
| 1015 printf("%c%c",92,34); | |
| 1016 else | |
| 1017 printf("%c",*s); | |
| 1018 s++; | |
| 1019 } | |
| 108 | 1020 printf("\\0%c\n\t.align 2\n",34); |
| 89 | 1021 } |
| 1022 | |
| 1023 void | |
| 107 | 1024 code_string(int e1,int creg) |
| 89 | 1025 { |
| 95 | 1026 char *s,*crn; |
| 1027 int lb; | |
| 1028 crn=register_name(creg); | |
| 89 | 1029 |
| 1030 s=(char *)cadr(e1); | |
| 109 | 1031 printf(".data\t\n.cstring\n\t.align 2\n"); |
| 89 | 1032 lb=fwdlabel(); |
| 102 | 1033 printf("L_%d:\n",lb); |
| 89 | 1034 ascii(s); |
| 1035 if (output_mode==TEXT_EMIT_MODE) { | |
| 1036 printf(".text\n"); | |
| 1037 } else { | |
| 1038 text_mode(); | |
| 1039 } | |
| 102 | 1040 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,lb,code_base); |
| 1041 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,lb,code_base,crn); | |
| 89 | 1042 } |
| 1043 | |
| 1044 #define MAX_COPY_LEN 20 | |
| 1045 | |
| 1046 void | |
| 1047 emit_copy(int from,int to,int length,int offset,int value,int det) | |
| 1048 { | |
| 1049 char *frn = register_name(from); | |
| 1050 char *trn = register_name(to); | |
| 1051 char *drn; | |
| 1052 int fix = 0; | |
| 1053 char *bcopy = "bcopy"; | |
| 95 | 1054 int dreg = get_register(); if (!dreg) error(-1); |
| 89 | 1055 drn = register_name(dreg); |
| 1056 | |
| 1057 /* length <0 means upward direction copy */ | |
| 1058 switch (length) { | |
| 1059 case 0: break; | |
| 1060 case 1: case -1: | |
| 1061 printf("\tlbz %s,%d(%s)\n",drn,offset,frn); | |
| 1062 printf("\tstb %s,%d(%s)\n",drn,offset,trn); | |
| 1063 break; | |
| 1064 case 2: case -2: | |
| 1065 printf("\tlhz %s,%d(%s)\n",drn,offset,frn); | |
| 1066 printf("\tsth %s,%d(%s)\n",drn,offset,trn); | |
| 1067 break; | |
| 1068 case 4: case -4: | |
| 1069 printf("\tlwz %s,%d(%s)\n",drn,offset,frn); | |
| 1070 printf("\tstw %s,%d(%s)\n",drn,offset,trn); | |
| 1071 break; | |
| 1072 default: | |
| 1073 if (-MAX_COPY_LEN<length && length <0) { | |
| 1074 for(;length<=4;length+=4,offset-=4) | |
| 1075 emit_copy(from,to,4,offset,0,det); | |
| 1076 for(;length<=2;length+=2,offset-=2) | |
| 1077 emit_copy(from,to,2,offset,0,det); | |
| 1078 if(length>0) | |
| 1079 emit_copy(from,to,length,offset,0,det); | |
| 1080 break; | |
| 1081 } else if (length <=MAX_COPY_LEN) { | |
| 1082 for(;length>=4;length-=4,offset+=4) | |
| 1083 emit_copy(from,to,4,offset,0,det); | |
| 1084 for(;length>=2;length-=2,offset+=2) | |
| 1085 emit_copy(from,to,2,offset,0,det); | |
| 1086 if(length>0) | |
| 1087 emit_copy(from,to,length,offset,0,det); | |
| 1088 break; | |
| 1089 } | |
| 1090 if (det) { | |
| 1091 printf("\tli r5,%d\n",length); | |
| 1092 printf("\tmr r4,%s\n",trn); | |
| 1093 printf("\tmr r3,%s\n",frn); | |
| 1094 printf("\tbl L_%s$stub\n",bcopy); | |
| 119 | 1095 extern_define(bcopy,0,FUNCTION,1); |
| 89 | 1096 break; |
| 1097 } | |
| 1098 } | |
| 1099 if (value) { | |
| 1100 /* creg must point top of the destination data */ | |
| 1101 /* this code is necessary for the value of assignment or function call */ | |
| 1102 /* otherwise we don't need this */ | |
| 1103 if (fix) printf("\taddi %s,%s,%d\n",trn,trn,fix); | |
| 1104 if(creg!=to) { | |
| 1105 free_register(creg); creg=to; | |
| 1106 } | |
| 1107 } | |
| 1108 free_register(dreg); | |
| 1109 regv[from]=regv[to]=regv[dreg]=0; | |
| 1110 regv[creg]=1; | |
| 1111 } | |
| 1112 | |
| 1113 int | |
| 119 | 1114 struct_push(int e4,int t,int arg) |
| 89 | 1115 { |
| 95 | 1116 int length,count; |
| 119 | 1117 int dreg,sreg; char *drn,*crn,*srn; |
| 89 | 1118 g_expr(e4); |
| 1119 length=size(t); | |
| 1120 if(length%size_of_int) { | |
| 1121 length += size_of_int - (length%size_of_int); | |
| 1122 } | |
| 95 | 1123 dreg = get_register(); if (!dreg) error(-1); |
| 119 | 1124 sreg = get_register(); if (!sreg) error(-1); |
| 89 | 1125 drn = register_name(dreg); |
| 119 | 1126 crn = register_name(creg); |
| 1127 srn = register_name(sreg); | |
| 1128 code_lvar(arg,sreg); | |
| 89 | 1129 for(count=0;length<MAX_COPY_LEN;count++,length-=size_of_int) { |
| 1130 if (length==0) { | |
| 1131 free_register(dreg); | |
| 1132 return count; | |
| 1133 } else { | |
| 1134 printf("\tlwz %s,%d(%s)\n",drn,length-size_of_int,crn); | |
| 1135 printf("\tstwu %s,%d(%s)\n",drn,-size_of_int,srn); | |
| 1136 } | |
| 1137 } | |
| 93 | 1138 printf("\taddis %s,%s,ha16(%d)\n",srn,srn,length); |
| 1139 printf("\taddi %s,%s,lo16(%d)\n",srn,srn,length); | |
| 89 | 1140 /* downward direction copy */ |
| 1141 printf("\tmr %s,%s\n",drn,srn); | |
| 1142 emit_copy(creg,dreg,length,0,0,1); | |
| 119 | 1143 if (dreg) free_register(dreg); |
| 1144 if (sreg) free_register(sreg); | |
| 89 | 1145 return length/size_of_int; |
| 1146 } | |
| 1147 | |
| 104 | 1148 void |
| 1149 set_creg(int reg,int mode) | |
| 1150 { | |
| 1151 if (reg!=creg) { | |
| 111 | 1152 clear_ptr_cache_reg(reg); |
| 104 | 1153 if (mode) |
| 1154 printf("\tmr %s,%s\n",register_name(reg),register_name(creg)); | |
| 1155 free_register(creg); | |
| 1156 creg = reg; | |
| 1157 regs[creg]=1; | |
| 1158 } | |
| 1159 } | |
| 1160 | |
| 1161 void | |
| 1162 set_freg(int reg,int mode) | |
| 1163 { | |
| 1164 if (reg!=freg) { | |
| 1165 if (mode) | |
| 1166 printf("\tfmr %s,%s\n",fregister_name(reg),fregister_name(freg)); | |
| 1167 free_fregister(freg); | |
| 1168 freg = reg; | |
| 1169 fregs[freg]=1; | |
| 1170 } | |
| 1171 } | |
| 1172 | |
| 1173 void | |
| 1174 use_var(int arg) | |
| 1175 { | |
| 1176 if (car(arg)==REGISTER) | |
| 116 | 1177 regs[cadr(arg)]=USING_REG; |
| 104 | 1178 else if (car(arg)==DREGISTER) |
| 116 | 1179 fregs[cadr(arg)]=USING_REG; |
| 104 | 1180 } |
| 1181 | |
| 105 | 1182 void |
| 1183 code_save_input_registers() | |
| 1184 { | |
| 119 | 1185 #if 0 |
| 105 | 1186 int args; |
| 1187 NMTBL *n; | |
| 1188 int reg; | |
| 1189 int tag; | |
| 1190 int lvar; | |
| 1191 int t; | |
| 1192 /* fnptr->dsp=list4(type,fnptr->dsp,(int)n,0); */ | |
| 112 | 1193 int reg_offset = 0; |
| 105 | 1194 |
| 1195 for(args = fnptr->dsp;args;args = cadr(args)) { | |
| 1196 n = (NMTBL *)caddr(args); | |
| 1197 tag = n->sc; | |
| 1198 reg = n->dsp; | |
| 1199 if (!n||n==&null_nptr) error(REG_ERR); | |
| 1200 if (tag==REGISTER) { | |
| 1201 /* regs[reg]==INPUT_REG case should be considered */ | |
| 1202 n->dsp = new_lvar(size_of_int); | |
| 1203 t = INT; | |
| 112 | 1204 reg += reg_offset; /* for duplicated floating point argument */ |
| 105 | 1205 } else if (tag==DREGISTER) { |
| 1206 /* fregs[reg]==INPUT_REG case should be considered */ | |
| 1207 n->dsp = new_lvar(size_of_double); | |
| 1208 t = DOUBLE; | |
| 112 | 1209 reg_offset+=2; |
| 105 | 1210 } else |
| 1211 continue; | |
| 1212 n->sc = LVAR; | |
| 1213 lvar = list2(LVAR,n->dsp); | |
| 112 | 1214 g_expr_u(assign_expr0(list2(LVAR,n->dsp),list3(tag,reg,(int)n),n->ty,t)); |
| 105 | 1215 if (tag==REGISTER) { |
| 1216 free_register(reg); | |
| 1217 } else if (tag==DREGISTER) { | |
| 1218 free_fregister(reg); | |
| 1219 } | |
| 1220 } | |
| 121 | 1221 my_func_args = 0; |
| 119 | 1222 #else |
| 1223 int args; | |
| 1224 NMTBL *n; | |
| 1225 int reg; | |
| 1226 int tag; | |
| 1227 int lvar; | |
| 1228 int t; | |
| 1229 /* fnptr->dsp=list4(type,fnptr->dsp,(int)n,0); */ | |
| 1230 int reg_offset = 0; | |
| 1231 int offset = 0; | |
| 1232 | |
| 1233 for(args = fnptr->dsp;args;args = cadr(args)) { | |
| 1234 n = (NMTBL *)caddr(args); | |
| 1235 tag = n->sc; | |
| 1236 reg = n->dsp; | |
| 1237 if (!n||n==&null_nptr) error(REG_ERR); | |
| 1238 if (tag==REGISTER) { | |
| 1239 /* regs[reg]==INPUT_REG case should be considered */ | |
| 1240 n->dsp = offset; | |
| 1241 offset+=size_of_int; | |
| 1242 t = INT; | |
| 1243 reg += reg_offset; /* for duplicated floating point argument */ | |
| 1244 } else if (tag==DREGISTER) { | |
| 1245 /* fregs[reg]==INPUT_REG case should be considered */ | |
| 1246 n->dsp = offset; | |
| 120 | 1247 t = n->ty; |
| 121 | 1248 if(t==FLOAT) { offset+=size_of_float; reg_offset+=1; } |
| 1249 else if(t==DOUBLE) { offset+=size_of_double; reg_offset+=2; } | |
| 120 | 1250 else error(-1); |
| 122 | 1251 } else { |
| 1252 offset += size(n->ty); | |
| 119 | 1253 continue; |
| 122 | 1254 } |
| 119 | 1255 n->sc = LVAR; |
| 1256 lvar = list2(LVAR,n->dsp); | |
| 1257 g_expr_u(assign_expr0(list2(LVAR,n->dsp),list3(tag,reg,(int)n),n->ty,t)); | |
| 1258 if (tag==REGISTER) { | |
| 1259 free_register(reg); | |
| 1260 } else if (tag==DREGISTER) { | |
| 1261 free_fregister(reg); | |
| 1262 } | |
| 1263 } | |
| 121 | 1264 my_func_args = offset; |
| 119 | 1265 #endif |
| 105 | 1266 } |
| 1267 | |
| 95 | 1268 int |
| 108 | 1269 simple_args(int e3) |
| 1270 { | |
| 1271 return | |
| 1272 !contains_in_list(e3,FUNCTION) && | |
| 1273 !contains_in_list(e3,CONV) && | |
| 1274 !contains_in_list(e3,SASS) | |
| 1275 ; | |
| 1276 } | |
| 1277 | |
| 119 | 1278 int |
| 1279 caller_arg_offset_v(int arg) | |
| 1280 { | |
| 1281 return ARG_LVAR_OFFSET+arg*size_of_int; | |
| 1282 } | |
| 111 | 1283 |
| 108 | 1284 int |
| 89 | 1285 function(int e1) |
| 1286 { | |
| 119 | 1287 int e2,e3,e4,e5,nargs,t,r0,r1; |
| 104 | 1288 int arg,reg_arg,freg_arg,arg_assign; |
| 111 | 1289 int reg_arg_list=0,ret_type,special_lvar; |
| 1290 NMTBL *fn; | |
| 108 | 1291 int jmp = 0; |
| 1292 char *jrn; | |
| 95 | 1293 |
| 111 | 1294 special_lvar = -1; |
| 105 | 1295 ret_type = cadddr(e1); |
| 108 | 1296 |
| 1297 e2 = cadr(e1); | |
| 1298 if (car(e2) == FNAME) { | |
| 1299 fn=(NMTBL *)cadr(e2); | |
| 1300 } else { | |
| 1301 jmp = get_register_var(0); | |
| 1302 if (car(jmp)!=REGISTER) error(-1); | |
| 1303 reg_arg_list = list2(jmp,reg_arg_list); | |
| 116 | 1304 g_expr(e2); |
| 1305 code_register(creg,cadr(jmp)); | |
| 1306 /* g_expr(assign_expr0(jmp,e2,INT,INT)); functions are lvalue */ | |
| 108 | 1307 } |
| 1308 | |
| 99 | 1309 /* now all input register vars are free */ |
| 108 | 1310 code_save_stacks(); |
| 107 | 1311 set_creg(CREG_REGISTER,0); |
| 1312 set_freg(FREG_FREGISTER,0); | |
| 108 | 1313 |
| 1314 nargs = reg_arg = freg_arg = arg_assign = 0; | |
| 105 | 1315 for (e3 = reverse0(caddr(e1)); e3; e3 = cadr(e3)) { |
| 89 | 1316 t=caddr(e3); |
| 111 | 1317 e4 = car(e3); |
| 89 | 1318 if(scalar(t)) { |
| 122 | 1319 if (reg_arg>=MAX_INPUT_REGISTER_VAR) { |
| 119 | 1320 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 116 | 1321 } else if (!simple_args(e3) && cadr(e3)) { |
| 105 | 1322 arg = get_register_var(0); |
| 104 | 1323 arg_assign = list2( |
| 105 | 1324 assign_expr0(get_input_register_var(reg_arg,0),arg,t,t), |
| 104 | 1325 arg_assign); |
| 96 | 1326 } else { |
| 105 | 1327 arg = get_input_register_var(reg_arg,0); |
| 89 | 1328 } |
| 107 | 1329 use_var(arg); /* protect from input register free */ |
| 99 | 1330 reg_arg_list = list2(arg,reg_arg_list); |
| 1331 g_expr_u(assign_expr0(arg,e4,t,t)); | |
| 89 | 1332 nargs ++ ; reg_arg++; |
| 99 | 1333 continue; |
| 89 | 1334 } else if (t==DOUBLE||t==FLOAT) { |
| 122 | 1335 if (reg_arg<MAX_INPUT_REGISTER_VAR) { |
| 119 | 1336 /* sigh... |
| 1337 printf requies floating value in integer registers | |
| 1338 */ | |
| 111 | 1339 if (car(e4)==DRLVAR) { |
| 1340 special_lvar = cadr(e4); | |
| 1341 e5 = list2(LVAR,special_lvar); | |
| 1342 } else { | |
| 1343 special_lvar = new_lvar(size_of_double); | |
| 119 | 1344 g_expr(assign_expr0( |
| 1345 (e5=list2(LVAR,special_lvar)),e4,t,t)); | |
| 1346 reg_arg_list = list2(e5,reg_arg_list); | |
| 1347 e4 = list2(DREGISTER,freg); | |
| 118 | 1348 /* freg should not change until XXX */ |
| 111 | 1349 } |
| 1350 r0=get_input_register_var(reg_arg,0); | |
| 1351 r1=get_input_register_var(reg_arg+1,0); | |
| 119 | 1352 use_var(r0); /* protect from input register free */ |
| 1353 use_var(r1); /* protect from input register free */ | |
| 111 | 1354 reg_arg_list = list2(r0,reg_arg_list); |
| 1355 reg_arg_list = list2(r1,reg_arg_list); | |
| 1356 arg_assign = list2( assign_expr0(r0,e5,INT,INT), arg_assign); | |
| 1357 arg_assign = list2( assign_expr0(r1, | |
| 1358 list2(LVAR,special_lvar+size_of_int), | |
| 1359 INT,INT), arg_assign); | |
| 1360 reg_arg += 2; | |
| 1361 } | |
| 122 | 1362 if (freg_arg>=4 && freg_arg<MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1363 /* oh my god! |
| 1364 it requies integer register and floating register and | |
| 1365 stack value. You are crazy. | |
| 1366 */ | |
| 1367 arg_assign = list2( | |
| 1368 assign_expr0(list2(LVAR,caller_arg_offset_v(nargs)), | |
| 1369 get_input_fregister_var(freg_arg,0),t,t), | |
| 1370 arg_assign); | |
| 1371 } | |
| 122 | 1372 if (freg_arg>=MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1373 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 108 | 1374 } else if (!simple_args(e3)) { |
| 105 | 1375 arg = get_fregister_var(0); |
| 104 | 1376 arg_assign = list2( |
| 119 | 1377 assign_expr0(get_input_fregister_var(freg_arg,0),arg,t,t), |
| 104 | 1378 arg_assign); |
| 99 | 1379 } else { |
| 105 | 1380 arg = get_input_fregister_var(freg_arg,0); |
| 99 | 1381 } |
| 107 | 1382 use_var(arg); /* protect from input register free */ |
| 99 | 1383 reg_arg_list = list2(arg,reg_arg_list); |
| 118 | 1384 g_expr_u(assign_expr0(arg,e4,t,t)); /* XXX */ |
| 99 | 1385 freg_arg++; |
| 122 | 1386 nargs += size(t)/size_of_int; |
| 89 | 1387 continue; |
| 1388 } else if (car(t)==STRUCT||car(t)==UNION) { | |
| 119 | 1389 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 1390 nargs += struct_push(e4,t,arg); | |
| 89 | 1391 continue; |
| 1392 } else { | |
| 1393 error(TYERR); | |
| 1394 } | |
| 1395 ++nargs; | |
| 1396 } | |
| 116 | 1397 if (max_func_args<nargs) max_func_args=nargs; |
| 104 | 1398 for(;arg_assign;arg_assign=cadr(arg_assign)) { |
| 1399 g_expr_u(car(arg_assign)); | |
| 1400 } | |
| 96 | 1401 clear_ptr_cache(); |
| 89 | 1402 if (car(e2) == FNAME) { |
| 108 | 1403 printf("\tbl\tL_%s$stub\n",fn->nm); |
| 89 | 1404 } else { |
| 108 | 1405 jrn = register_name(cadr(jmp)); |
| 89 | 1406 printf("\tmtctr %s\n",jrn); |
| 1407 printf("\tbctrl\n"); | |
| 1408 } | |
| 99 | 1409 for(;reg_arg_list;reg_arg_list=cadr(reg_arg_list)) { |
| 108 | 1410 arg = car(reg_arg_list); |
| 1411 if (car(arg)==DREGISTER) free_fregister(cadr(arg)); | |
| 1412 else if (car(arg)==REGISTER) free_register(cadr(arg)); | |
| 119 | 1413 else if (car(arg)==LVAR&&cadr(arg)<0) free_lvar(cadr(arg)); |
| 99 | 1414 } |
| 105 | 1415 if (ret_type==DOUBLE||ret_type==FLOAT) { |
| 104 | 1416 set_freg(RET_FREGISTER,0); |
| 96 | 1417 fregv[freg]=1; regv[creg]=0; |
| 105 | 1418 } else if (ret_type==VOID) { |
| 96 | 1419 fregv[freg]=0; regv[creg]=0; |
| 1420 } else { | |
| 104 | 1421 set_creg(RET_REGISTER,0); |
| 96 | 1422 fregv[freg]=0; regv[creg]=1; |
| 1423 } | |
| 105 | 1424 return ret_type; |
| 89 | 1425 } |
| 1426 | |
| 1427 void | |
| 1428 code_frame_pointer(int e3) { | |
| 102 | 1429 printf("\tmr %s,r1\n",register_name(e3)); |
| 89 | 1430 } |
| 1431 | |
| 1432 | |
| 1433 void | |
| 1434 code_fix_frame_pointer(int disp_offset) { | |
| 116 | 1435 printf("\tla r1,%d(r30)\n",disp_offset); |
| 89 | 1436 } |
| 1437 | |
| 1438 void | |
| 1439 code_jmp(char *s) { | |
| 1440 printf("\tb L_%s$stub\n",s); | |
| 1441 } | |
| 1442 | |
| 1443 | |
| 1444 void | |
| 1445 code_indirect_jmp(int e2) { | |
| 1446 printf("\tmtctr %s\n",register_name(e2)); | |
| 1447 printf("\tbctr\n"); | |
| 1448 } | |
| 1449 | |
| 95 | 1450 int |
| 89 | 1451 rindirect(int e1) /* *(p +5 ) */ |
| 1452 { | |
| 95 | 1453 char *crn; |
| 119 | 1454 int e2,e3,e4,offset; |
| 1455 | |
| 1456 offset=0; | |
| 89 | 1457 e3 = cadr(e2 = cadr(e1)); |
| 119 | 1458 if (car(e2)==ADD) { |
| 1459 e4=caddr(e2); | |
| 1460 if (car(e4)==CONST) { | |
| 1461 offset=cadr(e4); | |
| 1462 e2=e3; | |
| 1463 } | |
| 1464 } | |
| 89 | 1465 g_expr(e2); |
| 90 | 1466 crn=register_name(creg); |
| 89 | 1467 switch (car(e1)) { |
| 1468 case FRINDIRECT: case DRINDIRECT: | |
| 119 | 1469 printf("\t%s %s,%d(%s)\n",fload(car(e1)==DRINDIRECT), |
| 1470 fregister_name(freg),offset,crn); | |
| 90 | 1471 regv[creg]=0; regv[freg]=1; |
| 95 | 1472 return DOUBLE; |
| 90 | 1473 case CRINDIRECT: |
| 119 | 1474 printf("\tlbz %s,%d(%s)\n",crn,offset,crn); |
| 90 | 1475 printf("\textsb %s,%s\n",crn,crn); |
| 95 | 1476 return CHAR; |
| 90 | 1477 case RINDIRECT: |
| 119 | 1478 printf("\tlwz %s,%d(%s)\n",crn,offset,crn); |
| 95 | 1479 return INT; |
| 89 | 1480 } |
| 95 | 1481 error(-1); return INT; |
| 89 | 1482 } |
| 1483 | |
| 1484 void | |
| 103 | 1485 code_assign_gvar(int e2,int creg,int byte) { |
| 90 | 1486 int r; |
| 1487 char *crn,*rrn; | |
| 109 | 1488 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 90 | 1489 rrn=register_name(r); |
| 1490 crn=register_name(creg); | |
| 1491 if (byte) { | |
| 108 | 1492 printf("\tstb %s,0(%s)\n",crn,rrn); |
| 90 | 1493 } else { |
| 108 | 1494 printf("\tstw %s,0(%s)\n",crn,rrn); |
| 90 | 1495 } |
| 89 | 1496 } |
| 1497 | |
| 1498 void | |
| 103 | 1499 code_assign_lvar(int e2,int creg,int byte) { |
| 90 | 1500 char *crn; |
| 1501 crn=register_name(creg); | |
| 119 | 1502 lvar_intro(e2); |
| 90 | 1503 if (byte) { |
| 119 | 1504 printf("\tstb %s,",crn); lvar(e2); |
| 90 | 1505 } else { |
| 119 | 1506 printf("\tstw %s,",crn); lvar(e2); |
| 90 | 1507 } |
| 89 | 1508 } |
| 1509 | |
| 1510 void | |
| 111 | 1511 code_assign_register(int e2,int byte,int creg) { |
| 104 | 1512 if (e2!=creg) |
| 1513 printf("\tmr %s,%s\n",register_name(e2),register_name(creg)); | |
| 89 | 1514 } |
| 1515 | |
| 1516 void | |
| 118 | 1517 code_assign(int e2,int byte,int creg) { |
| 95 | 1518 char *drn=register_name(e2); |
| 1519 char *crn=register_name(creg); | |
| 1520 | |
| 90 | 1521 if (byte) { |
| 108 | 1522 printf("\tstb %s,0(%s)\n",crn,drn); |
| 90 | 1523 } else { |
| 108 | 1524 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1525 } |
| 89 | 1526 } |
| 1527 | |
| 1528 | |
| 1529 void | |
| 1530 code_register_assop(int e2,int op,int byte) { | |
| 1531 int reg; | |
| 1532 int xreg = creg; | |
| 1533 creg = reg = e2; | |
| 1534 tosop(op,xreg); | |
| 1535 creg = xreg; | |
| 104 | 1536 if (creg!=reg) |
| 1537 printf("\tmr %s,%s\n",register_name(creg),register_name(reg)); | |
| 89 | 1538 } |
| 1539 | |
| 1540 | |
| 1541 void | |
| 1542 code_assop(int op,int byte) { | |
| 90 | 1543 char *xrn,*crn,*drn; |
| 89 | 1544 int xreg; |
| 90 | 1545 int edx = get_register(); if(!edx) error(-1); |
| 93 | 1546 xrn = register_name(xreg = emit_pop(0)); /* pop e3 value */ |
| 89 | 1547 regv[xreg]=regs[xreg]=1; |
| 113 | 1548 printf("# assop\n\tmr %s,%s\n",register_name(edx),register_name(creg)); |
| 89 | 1549 regv[edx]=1; |
| 1550 ld_indexx(byte,0,edx); | |
| 1551 tosop(op,xreg); | |
| 90 | 1552 crn = register_name(creg); |
| 1553 drn = register_name(edx); | |
| 1554 if (byte) { | |
| 108 | 1555 printf("\tstb %s,0(%s)\n",crn,drn); |
| 90 | 1556 } else { |
| 108 | 1557 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1558 } |
| 1559 free_register(edx); | |
| 89 | 1560 emit_pop_free(xreg); |
| 1561 } | |
| 1562 | |
| 1563 | |
| 1564 void | |
| 1565 tosop(int op,int oreg) | |
| 1566 { | |
| 1567 int dx; | |
| 95 | 1568 char *orn,*crn,*drn; |
| 89 | 1569 |
| 103 | 1570 if(oreg==-1) { |
| 1571 error(-1); | |
| 1572 } else if (oreg<= -REG_LVAR_OFFSET) { | |
| 104 | 1573 dx = get_register(); if (dx<0) error(-1); |
| 119 | 1574 code_rlvar(oreg+REG_LVAR_OFFSET,dx); |
| 104 | 1575 oreg = dx; |
| 103 | 1576 regv[oreg]=1; |
| 1577 } | |
| 1578 | |
| 89 | 1579 switch(op) { |
| 1580 case LSHIFT: | |
| 1581 case ULSHIFT: | |
| 90 | 1582 shift("slw",oreg); |
| 89 | 1583 return; |
| 1584 case RSHIFT: | |
| 90 | 1585 shift("srw",oreg); |
| 89 | 1586 return; |
| 1587 case URSHIFT: | |
| 90 | 1588 shift("sraw",oreg); |
| 89 | 1589 return; |
| 1590 } | |
| 93 | 1591 orn = register_name(oreg); |
| 89 | 1592 crn = register_name(creg); |
| 1593 switch(op) { | |
| 1594 case ADD: | |
| 114 | 1595 printf("\tadd %s,%s,%s\n",crn,crn,orn); |
| 89 | 1596 break; |
| 1597 case SUB: | |
| 114 | 1598 printf("\tsub %s,%s,%s\n",crn,crn,orn); |
| 89 | 1599 break; |
| 112 | 1600 case CMP: |
| 113 | 1601 printf("\tcmpw cr0,%s,%s\n",crn,orn); |
| 112 | 1602 break; |
| 89 | 1603 case BAND: |
| 114 | 1604 printf("\tand %s,%s,%s\n",crn,crn,orn); |
| 89 | 1605 break; |
| 1606 case EOR: | |
| 114 | 1607 printf("\txor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1608 break; |
| 1609 case BOR: | |
| 114 | 1610 printf("\tor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1611 break; |
| 1612 case MUL: | |
| 116 | 1613 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 1614 break; | |
| 89 | 1615 case UMUL: |
| 114 | 1616 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 89 | 1617 break; |
| 1618 case DIV: | |
| 114 | 1619 printf("\tdivw %s,%s,%s\n",crn,crn,orn); |
| 90 | 1620 break; |
| 89 | 1621 case UDIV: |
| 114 | 1622 printf("\tdivwu %s,%s,%s\n",crn,crn,orn); |
| 89 | 1623 break; |
| 1624 case MOD: | |
| 90 | 1625 dx=get_register(); |
| 95 | 1626 drn = register_name(dx); |
| 116 | 1627 printf("\tdivw %s,%s,%s\n",drn,crn,orn); |
| 1628 printf("\tmullw %s,%s,%s\n",drn,drn,orn); | |
| 1629 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1630 free_register(dx); |
| 90 | 1631 break; |
| 89 | 1632 case UMOD: |
| 90 | 1633 dx=get_register(); |
| 95 | 1634 drn = register_name(dx); |
| 114 | 1635 printf("\tdivwu %s,%s,%s\n",drn,crn,orn); |
| 116 | 1636 printf("\tmullw %s,%s,%s\n",drn,drn,orn); |
| 1637 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1638 free_register(dx); |
| 89 | 1639 break; |
| 112 | 1640 default: |
| 1641 error(-1); | |
| 89 | 1642 } |
| 95 | 1643 if(oreg!=creg) free_register(oreg); |
| 89 | 1644 } |
| 1645 | |
| 1646 | |
| 1647 void | |
| 1648 shift(char *op, int reg) | |
| 1649 { | |
| 93 | 1650 char *crn = register_name(creg); |
| 1651 char *rrn = register_name(reg); | |
| 90 | 1652 printf("\t%s %s,%s,%s\n",op,crn,rrn,crn); |
| 89 | 1653 } |
| 1654 | |
| 1655 void | |
| 1656 ld_indexx(int byte, int n, int xreg) | |
| 1657 { | |
| 95 | 1658 char *crn = register_name(creg); |
| 90 | 1659 if (byte) { |
| 95 | 1660 printf("\tlbz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1661 register_name(xreg)); |
| 1662 printf("\textsb %s,%s\n",crn,crn); | |
| 1663 } else | |
| 95 | 1664 printf("\tlwz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1665 register_name(xreg)); |
| 89 | 1666 } |
| 1667 | |
| 95 | 1668 int |
| 1669 code_csvalue() | |
| 1670 { | |
| 1671 return creg; | |
| 1672 } | |
| 1673 | |
| 89 | 1674 void |
| 95 | 1675 code_cmpdimm(int e, int csreg) |
| 89 | 1676 { |
| 1677 /* used in dosiwtch() */ | |
| 1678 if(chk) return; | |
| 108 | 1679 printf("\tcmpwi cr0,%s,%d\n",register_name(csreg),e); |
| 89 | 1680 } |
| 1681 | |
| 1682 void | |
| 1683 code_opening(char *filename) | |
| 1684 { | |
| 1685 printf("\t.file \"%s\"\n",filename); | |
| 108 | 1686 /* printf("\t.version\t\"01.01\"\n"); */ |
| 89 | 1687 /* printf("gcc2_compiled.:\n"); */ |
| 1688 printf(".text\n"); | |
| 1689 } | |
| 1690 | |
| 1691 void | |
| 95 | 1692 rexpr(int e1, int l1, char *s,int t) |
| 89 | 1693 { |
| 90 | 1694 g_expr(list3(CMP,cadr(e1),caddr(e1))); |
| 102 | 1695 printf("\tb%s cr0,L_%d\n",s,l1); |
| 89 | 1696 } |
| 1697 | |
| 1698 | |
| 1699 void | |
| 1700 jcond(int l, char cond) | |
| 1701 { | |
| 1702 if (chk) return; | |
| 102 | 1703 printf("\tb%s cr0,L_%d\n",cond?"ne":"eq",l); |
| 89 | 1704 } |
| 1705 | |
| 1706 void | |
| 1707 jmp(int l) | |
| 1708 { | |
| 1709 control=0; | |
| 1710 if (chk) return; | |
| 102 | 1711 printf("\tb\tL_%d\n",l); |
| 89 | 1712 } |
| 1713 | |
| 1714 void | |
| 1715 gen_comment(char *s) | |
| 1716 { | |
| 1717 if (chk) return; | |
| 1718 printf("## %s",s); | |
| 1719 } | |
| 1720 | |
|
100
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diff
changeset
|
1721 static int code_begin; |
| 89 | 1722 |
| 1723 void | |
| 1724 code_enter(char *name) | |
| 1725 { | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
changeset
|
1726 if (output_mode!=TEXT_EMIT_MODE) |
|
a9e6f2a2946f
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diff
changeset
|
1727 text_mode(); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
changeset
|
1728 else |
| 108 | 1729 printf("\t.align 2\n"); |
| 89 | 1730 if (stmode!=STATIC) |
| 102 | 1731 printf(".globl _%s\n",name); |
| 108 | 1732 /* |
| 89 | 1733 printf("\t.type\t%s,@function\n",name); |
| 108 | 1734 */ |
| 101 | 1735 printf("_%s:\n",name); |
|
100
a9e6f2a2946f
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parents:
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diff
changeset
|
1736 code_disp_label=fwdlabel(); |
| 116 | 1737 printf("\tla r30,L_%d(r30)\n",code_disp_label); |
| 119 | 1738 max_func_args = 0; |
| 89 | 1739 } |
| 1740 | |
| 1741 | |
| 1742 void | |
| 1743 code_enter1(int args) | |
| 1744 { | |
| 1745 printf("## args %d disp %d code_arg_offset=%d code_disp_offset=%d\n",args,disp,code_arg_offset,code_disp_offset); | |
| 106 | 1746 set_creg(CREG_REGISTER,0); |
| 1747 set_freg(FREG_FREGISTER,0); | |
| 89 | 1748 } |
| 1749 | |
| 1750 void | |
| 1751 code_leave(char *name) | |
| 1752 { | |
| 1753 disp&= -size_of_int; | |
| 102 | 1754 printf("\t.set L_%d,%d\n",code_disp_label,disp+code_disp_offset); |
| 1755 printf("L_%d:\n",labelno); | |
| 1756 printf("\t.size\t_%s,L_%d-L_%d\n",name,labelno,code_begin); | |
| 89 | 1757 local_table(); |
| 1758 labelno++; | |
| 1759 free_all_register(); | |
| 1760 } | |
| 1761 | |
| 1762 void | |
| 1763 enter(char *name) | |
| 1764 { | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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parents:
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diff
changeset
|
1765 if (output_mode!=TEXT_EMIT_MODE) |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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parents:
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diff
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|
1766 text_mode(); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
changeset
|
1767 else |
| 108 | 1768 printf("\t.align 2\n"); |
| 89 | 1769 if (stmode!=STATIC) |
| 101 | 1770 printf(".globl _%s\n",name); |
| 108 | 1771 /* |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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parents:
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diff
changeset
|
1772 printf("\t.type\t%s,@function\n",name); |
| 108 | 1773 */ |
| 101 | 1774 printf("_%s:\n",name); |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
1775 code_setup=fwdlabel(); |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
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|
1776 printf("\tmflr r0\n"); |
| 102 | 1777 printf("\tbl L_%d\n",code_setup); |
|
100
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parents:
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diff
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|
1778 code_base=fwdlabel(); |
| 111 | 1779 fwddef(code_base); |
| 116 | 1780 r1_offset_label = fwdlabel(); |
| 1781 lvar_offset_label = fwdlabel(); | |
| 1782 printf("\tstwu r1,lo16(-L_%d)(r1)\n",r1_offset_label); | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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changeset
|
1783 printf("\tmr r30,r1\n"); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
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|
1784 printf("\tmflr r31\n"); |
| 116 | 1785 max_func_args = 0; |
| 89 | 1786 } |
| 1787 | |
| 1788 void | |
| 1789 enter1() | |
| 1790 { | |
| 106 | 1791 set_creg(CREG_REGISTER,0); |
| 1792 set_freg(FREG_FREGISTER,0); | |
|
100
a9e6f2a2946f
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diff
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|
1793 } |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1794 |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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parents:
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diff
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|
1795 int |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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|
1796 reg_save_offset() |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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|
1797 { |
| 108 | 1798 return -( |
| 116 | 1799 (REAL_MAX_REGISTER-(REG_VAR_BASE-max_reg_var))*size_of_int+ |
| 108 | 1800 (REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*size_of_double |
| 1801 ); | |
| 89 | 1802 } |
| 1803 | |
| 1804 void | |
| 1805 leave(int control, char *name) | |
| 1806 { | |
| 111 | 1807 |
|
100
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|
1808 if (control) { |
| 108 | 1809 code_set_return_register(1); |
| 89 | 1810 } |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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diff
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1811 if (retcont) fwddef(retcont); |
| 89 | 1812 fwddef(retlabel); |
|
100
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diff
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|
1813 printf("\tlwz r1,0(r1)\n"); |
| 116 | 1814 if (max_freg_var>=0 && max_freg_var<=3) max_freg_var=3; |
| 111 | 1815 reg_save = reg_save_offset(); |
| 110 | 1816 if (max_freg_var>=0) { |
| 1817 printf("\tlmw r%d,%d(r1)\n", | |
| 111 | 1818 REG_VAR_BASE-max_reg_var,reg_save); |
| 1819 freg_save = 72-(REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*4; | |
|
100
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|
1820 printf("\tb restFP+%d ; restore f%d-f31\n", |
| 111 | 1821 freg_save, |
|
100
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1822 FREG_VAR_BASE-max_freg_var); |
|
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1823 } else { |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1824 printf("\tlwz r0,8(r1)\n"); |
|
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1825 printf("\tmtlr r0\n"); |
| 110 | 1826 printf("\tlmw r%d,%d(r1)\n", |
| 116 | 1827 REG_VAR_BASE-max_reg_var,reg_save); |
|
100
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1828 printf("\tblr\n"); |
|
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1829 } |
| 89 | 1830 |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1831 disp &= -size_of_int; |
|
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|
1832 fwddef(code_setup); |
| 110 | 1833 printf("\tstmw r%d,%d(r1)\n", |
| 116 | 1834 REG_VAR_BASE-max_reg_var,reg_save); |
| 110 | 1835 printf("\tstw r0,8(r1)\n"); |
| 1836 if (max_freg_var>=0) | |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1837 printf("\tb saveFP+%d ; save f%d-f31\n", |
| 111 | 1838 freg_save, |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1839 FREG_VAR_BASE-max_freg_var); |
| 110 | 1840 else { |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1841 printf("\tblr\n"); |
| 110 | 1842 } |
|
100
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1843 |
| 116 | 1844 code_offset_set(); |
| 89 | 1845 local_table(); |
| 1846 labelno++; | |
| 1847 free_all_register(); | |
| 1848 } | |
| 1849 | |
| 1850 | |
| 1851 void | |
| 107 | 1852 code_set_return_register(int mode) { |
| 111 | 1853 if (cadr(fnptr->ty)==DOUBLE||cadr(fnptr->ty)==FLOAT) { |
| 107 | 1854 set_freg(RET_FREGISTER,mode); |
| 103 | 1855 } else { |
| 107 | 1856 set_creg(RET_REGISTER,mode); |
| 103 | 1857 } |
| 89 | 1858 } |
| 1859 | |
| 1860 void | |
| 108 | 1861 code_set_fixed_creg(int mode,int type) { |
| 1862 if (type==FLOAT||type==DOUBLE) { | |
| 1863 if (cond_freg== -1) { | |
| 1864 cond_freg = get_fregister_var(0); | |
| 1865 if(car(cond_freg)!=DREGISTER) error(-1); | |
| 1866 } | |
| 1867 set_freg(cadr(cond_freg),mode); | |
| 1868 } else { | |
| 1869 if (cond_reg== -1) { | |
| 1870 cond_reg = get_register_var(0); | |
| 1871 if(car(cond_reg)!=REGISTER) error(-1); | |
| 1872 } | |
| 1873 set_creg(cadr(cond_reg),mode); | |
| 1874 } | |
| 107 | 1875 } |
| 1876 | |
| 1877 void | |
| 89 | 1878 gen_gdecl(char *n, int gpc) |
| 1879 { | |
| 102 | 1880 /* |
| 89 | 1881 if (stmode!=STATIC) |
| 99 | 1882 printf(".globl _%s\n",n); |
| 102 | 1883 */ |
| 89 | 1884 } |
| 1885 | |
| 1886 void | |
| 1887 align(int t) | |
| 1888 { | |
| 1889 if (t!=CHAR) { | |
| 1890 if (data_alignment & 1) | |
| 1891 printf("\t.align 2\n"); | |
| 1892 data_alignment = 0; | |
| 1893 } | |
| 1894 } | |
| 1895 | |
| 1896 void | |
| 1897 emit_data(int e, int t, NMTBL *n) | |
| 1898 { | |
| 1899 int l; | |
| 1900 double d; | |
| 1901 float f; | |
| 1902 char *name; | |
| 1903 name = n->nm; | |
| 1904 if(mode!=GDECL) { | |
| 1905 error(-1); return; | |
| 1906 } | |
| 1907 if (chk) return; | |
| 1908 if (n->dsp != -1) { | |
| 1909 n->dsp = -1; /* initiallized flag */ | |
| 102 | 1910 printf(".globl\t_%s\n",name); |
| 89 | 1911 data_mode(name); |
| 1912 align(t); | |
| 102 | 1913 printf("_%s:\n",name); |
| 89 | 1914 } else { |
| 1915 data_mode(0); | |
| 1916 } | |
| 1917 if(car(e)==CONST) { | |
| 1918 if (t==CHAR) { | |
| 1919 printf("\t.byte %d\n",cadr(e)); | |
| 1920 if (data_alignment>0) | |
| 1921 data_alignment++; | |
| 1922 gpc += 1; | |
| 1923 } else if (t==SHORT) { | |
| 1924 printf("\t.word %d\n",cadr(e)); | |
| 1925 if (data_alignment>0) data_alignment++; | |
| 1926 gpc += 2; | |
| 1927 } else { | |
| 1928 printf("\t.long %d\n",cadr(e)); | |
| 1929 gpc += size_of_int; | |
| 1930 } | |
| 1931 } else if(t==DOUBLE) { | |
| 1932 d = dcadr(e); | |
| 99 | 1933 printf("\t.long\t0x%x,0x%x\n",code_d2(d),code_d1(d)); |
| 89 | 1934 } else if(t==FLOAT) { |
| 1935 f = dcadr(e); | |
| 1936 printf("\t.long\t0x%x\n",*(int *)&f); | |
| 1937 } else if(t!=CHAR) { | |
| 1938 gpc += size_of_int; | |
| 1939 if(car(e)==ADDRESS&&car(cadr(e))==GVAR) { | |
| 116 | 1940 printf("\t.long _%s\n",((NMTBL *)cadr(cadr(e)))->nm); |
| 89 | 1941 } else if(car(e)==FNAME) { |
| 116 | 1942 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 109 | 1943 } else if(car(e)==GVAR) { |
| 116 | 1944 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 89 | 1945 } else if(car(e)==STRING) { |
| 1946 if (car(n->ty)!=ARRAY || cadr(n->ty)!=CHAR) { | |
| 1947 l = fwdlabel(); | |
| 102 | 1948 printf("\t.long L_%d\n",l); |
| 108 | 1949 printf(".cstring\n\t.align 2\n"); |
| 102 | 1950 printf("L_%d:\n",l); |
| 89 | 1951 output_mode = RODATA_EMIT_MODE; |
| 1952 } | |
| 1953 ascii((char *)cadr(e)); | |
| 1954 } else error(TYERR); | |
| 1955 } | |
| 1956 } | |
| 1957 | |
| 1958 void | |
| 1959 emit_data_closing(NMTBL *n) | |
| 1960 { | |
| 108 | 1961 /* |
| 89 | 1962 int lb; |
| 108 | 1963 */ |
| 89 | 1964 if (chk) return; |
| 1965 if (mode==GDECL) { | |
| 1966 data_mode(0); | |
| 108 | 1967 /* |
| 89 | 1968 lb=fwdlabel(); |
| 102 | 1969 printf("L_%d:\n",lb); |
| 1970 printf("\t.size\t%s,L_%d-%s\n",n->nm,lb,n->nm); | |
| 108 | 1971 */ |
| 89 | 1972 } |
| 1973 } | |
| 1974 | |
| 1975 void | |
| 1976 global_table(void) | |
| 1977 { | |
| 1978 NMTBL *n; | |
| 98 | 1979 int init; char *extrn; |
| 89 | 1980 init=0; |
| 1981 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 109 | 1982 if ((n->sc == GVAR) && n->dsp != -1) { |
| 89 | 1983 /* n->dsp = -1 means initialized global */ |
| 1984 if (init==0) { | |
| 1985 data_mode(0); | |
| 1986 init=1; | |
| 1987 } | |
| 97 | 1988 printf(".comm _%s,%d\n",n->nm,size(n->ty)); |
| 109 | 1989 } else if ((n->sc==STATIC) && n->dsp != -1) { |
| 1990 /* n->dsp = -1 means initialized global */ | |
| 1991 if (init==0) { | |
| 1992 data_mode(0); | |
| 1993 init=1; | |
| 1994 } | |
| 1995 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); | |
| 97 | 1996 } |
| 1997 } | |
| 1998 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 103 | 1999 if (is_code(n)||is_function(n)) { |
| 97 | 2000 extrn = n->nm; |
| 103 | 2001 if (n->sc==EXTRN1) { |
| 2002 data_mode(0); | |
| 2003 printf(".picsymbol_stub\n"); | |
| 97 | 2004 printf("L_%s$stub:\n",extrn); |
| 2005 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2006 printf("\tmflr r0\n"); | |
| 2007 printf("\tbcl 20,31,L0$_%s\n",extrn); | |
| 2008 printf("L0$_%s:\n",extrn); | |
| 2009 printf("\tmflr r11\n"); | |
| 2010 printf("\taddis r11,r11,ha16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2011 printf("\tmtlr r0\n"); | |
| 2012 printf("\tlwz r12,lo16(L_%s$lazy_ptr-L0$_%s)(r11)\n",extrn,extrn); | |
| 2013 printf("\tmtctr r12\n"); | |
| 2014 printf("\taddi r11,r11,lo16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2015 printf("\tbctr\n"); | |
| 2016 printf(".data\n"); | |
| 2017 printf(".lazy_symbol_pointer\n"); | |
| 2018 printf("L_%s$lazy_ptr:\n",extrn); | |
| 2019 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2020 printf("\t.long dyld_stub_binding_helper\n"); | |
| 103 | 2021 } else if (n->sc==FUNCTION||n->sc==CODE) { |
| 2022 text_mode(); | |
| 2023 printf("\t.set L_%s$stub,_%s\n",extrn,extrn); | |
| 109 | 2024 data_mode(0); |
| 111 | 2025 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",extrn,extrn); |
| 108 | 2026 } |
| 97 | 2027 } |
| 2028 } | |
| 109 | 2029 init=0; |
| 2030 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 2031 if (n->sc == GVAR) { | |
| 2032 if (init==0) { | |
| 119 | 2033 printf(".data\n"); |
| 109 | 2034 init=1; |
| 2035 } | |
| 116 | 2036 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",n->nm,n->nm); |
| 109 | 2037 } |
| 2038 } | |
| 97 | 2039 init = 0; |
| 2040 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 116 | 2041 if (is_code(n)||is_function(n)) continue; |
| 109 | 2042 if (n->sc==EXTRN1) { |
| 97 | 2043 if(init==0) { |
| 119 | 2044 printf(".data\n"); |
| 97 | 2045 printf(".non_lazy_symbol_pointer\n"); |
| 2046 init=1; | |
| 2047 } | |
| 2048 printf("L_%s$non_lazy_ptr:\n",n->nm); | |
| 2049 printf("\t.indirect_symbol _%s\n",n->nm); | |
| 2050 printf("\t.long\t0\n"); | |
| 89 | 2051 } |
| 2052 } | |
| 2053 } | |
| 2054 | |
| 2055 void | |
| 2056 local_table(void) | |
| 2057 { | |
| 2058 NMTBL *n; | |
| 2059 int init; | |
| 2060 init=0; | |
| 2061 /* static local variables */ | |
| 2062 for(n=ntable+GSYMS;n < &ntable[GSYMS+LSYMS];n++) { | |
| 2063 if (n->sc == GVAR) { | |
| 2064 if (init==0) { | |
| 2065 data_mode(0); | |
| 2066 init=1; | |
| 2067 } | |
| 97 | 2068 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); |
| 89 | 2069 } |
| 2070 } | |
| 2071 } | |
| 2072 | |
| 2073 void | |
| 2074 text_mode(void) | |
| 2075 { | |
| 2076 if (output_mode!=TEXT_EMIT_MODE) { | |
| 2077 printf(".text\n"); | |
| 2078 printf("\t.align 2\n"); | |
| 2079 output_mode = TEXT_EMIT_MODE; | |
| 2080 } | |
| 2081 } | |
| 2082 | |
| 2083 void | |
| 2084 data_mode(char *name) | |
| 2085 { | |
| 2086 if (output_mode!=DATA_EMIT_MODE) { | |
| 2087 printf(".data\n"); | |
| 2088 output_mode = DATA_EMIT_MODE; | |
| 2089 } | |
| 108 | 2090 /* |
| 89 | 2091 if (name) |
| 2092 printf("\t.type\t%s,@object\n",name); | |
| 108 | 2093 */ |
| 89 | 2094 } |
| 2095 | |
| 2096 /* floating point */ | |
| 2097 | |
| 96 | 2098 static int float_one_lib_used=0; |
| 2099 static char *float_one_lib[] = { | |
| 2100 ".data", | |
| 108 | 2101 /* ".literal8", */ |
| 96 | 2102 " .align 3", |
| 2103 "__float_one:", | |
| 2104 " .long 1065353216", | |
| 2105 ".text", | |
| 109 | 2106 /* ".set L__float_one$non_lazy_ptr,__float_one", */ |
| 96 | 2107 0 |
| 2108 }; | |
| 97 | 2109 static int float_zero_lib_used=0; |
| 2110 static char *float_zero_lib[] = { | |
| 2111 ".data", | |
| 108 | 2112 /* ".literal8", */ |
| 97 | 2113 " .align 3", |
| 2114 "__float_zero:", | |
| 2115 " .long 0", | |
| 2116 ".text", | |
| 109 | 2117 /* ".set L__float_zero$non_lazy_ptr,__float_zero", */ |
| 97 | 2118 0 |
| 2119 }; | |
| 2120 | |
| 96 | 2121 |
| 89 | 2122 |
| 2123 char * | |
| 2124 fstore(int d) | |
| 2125 { | |
| 90 | 2126 return (d?"stfd":"stfs"); |
| 89 | 2127 } |
| 2128 | |
| 2129 char * | |
| 2130 fload(int d) | |
| 2131 { | |
| 90 | 2132 return d?"lfd":"lfs"; |
| 89 | 2133 } |
| 2134 | |
| 95 | 2135 void |
| 97 | 2136 code_cmp_fregister(int e2) |
| 95 | 2137 { |
| 99 | 2138 char *frn,*rrn,*grn; |
| 2139 int greg,r; | |
| 2140 grn = register_name(greg = get_fregister()); | |
| 2141 frn = register_name(freg); | |
| 2142 float_zero_lib_used=1; | |
| 109 | 2143 r = get_ptr_cache(&float_zero); |
| 99 | 2144 rrn = register_name(r); |
| 108 | 2145 printf("\tlfs %s,0(%s)\n",grn,rrn); |
| 99 | 2146 printf("\tfcmpu cr0,%s,%s\n",grn,frn); |
| 2147 free_fregister(greg); | |
| 107 | 2148 fregv[freg]=0; |
| 99 | 2149 return; |
| 95 | 2150 } |
| 2151 | |
| 2152 void | |
| 107 | 2153 code_fregister(int e2,int freg) |
| 95 | 2154 { |
| 104 | 2155 if (freg!=e2) |
| 108 | 2156 printf("\tfmr %s,%s\n",fregister_name(freg),fregister_name(e2)); |
| 107 | 2157 fregv[freg]=1; |
| 95 | 2158 } |
| 2159 | |
| 103 | 2160 void code_dassign_gvar(int e2,int freg,int d) |
| 89 | 2161 { |
| 90 | 2162 int r; |
| 109 | 2163 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2164 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(r)); |
| 107 | 2165 fregv[freg]=1; |
| 89 | 2166 } |
| 2167 | |
| 103 | 2168 void code_dassign_lvar(int e2,int freg,int d) |
| 89 | 2169 { |
| 119 | 2170 lvar_intro(e2); |
| 2171 printf("\t%s %s,",fstore(d),fregister_name(freg)); | |
| 2172 lvar(e2); | |
| 107 | 2173 fregv[freg]=1; |
| 89 | 2174 } |
| 2175 | |
| 103 | 2176 void code_dassign(int e2,int freg,int d) |
| 89 | 2177 { |
| 108 | 2178 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(e2)); |
| 107 | 2179 fregv[freg]=1; |
| 89 | 2180 } |
| 2181 | |
| 111 | 2182 void |
| 2183 code_dassign_fregister(int e2,int d,int freg) { | |
| 2184 if (e2!=freg) | |
| 2185 printf("\tfmr %s,%s\n",fregister_name(e2),fregister_name(freg)); | |
| 2186 } | |
| 2187 | |
| 89 | 2188 static double d0 = 1.0; |
| 2189 | |
| 2190 int | |
| 2191 code_d1(double d) | |
| 2192 { | |
| 2193 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2194 return (i[1] == 0x3ff00000)?j[0]:j[1]; |
| 89 | 2195 } |
| 2196 | |
| 2197 int | |
| 2198 code_d2(double d) | |
| 2199 { | |
| 2200 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2201 return (i[1] == 0x3ff00000)?j[1]:j[0]; |
| 89 | 2202 } |
| 2203 | |
| 107 | 2204 void code_dconst(int e2,int freg) |
| 89 | 2205 { |
| 2206 int lb; | |
| 2207 double d = dcadr(e2); | |
| 90 | 2208 int r; |
| 97 | 2209 char *rrn,*frn; |
| 2210 frn = fregister_name(freg); | |
| 89 | 2211 if (d==0.0) { |
| 97 | 2212 float_zero_lib_used=1; |
| 109 | 2213 r = get_ptr_cache(&float_zero); |
| 98 | 2214 rrn = register_name(r); |
| 108 | 2215 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2216 return; |
| 89 | 2217 } |
| 2218 if (d==1.0) { | |
| 97 | 2219 float_one_lib_used=1; |
| 109 | 2220 r = get_ptr_cache(&float_one); |
| 98 | 2221 rrn = register_name(r); |
| 108 | 2222 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2223 return; |
| 89 | 2224 } |
| 97 | 2225 rrn = register_name((r=get_register())); |
| 108 | 2226 printf(" \t.data\n\t.align 3\n"); |
| 89 | 2227 lb=fwdlabel(); |
| 102 | 2228 printf("L_%d:\n",lb); |
| 99 | 2229 printf("\t.long\t0x%x,0x%x\n",code_d2(d),code_d1(d)); |
| 89 | 2230 if (output_mode==TEXT_EMIT_MODE) { |
| 2231 printf(".text\n"); | |
| 2232 } else { | |
| 2233 text_mode(); | |
| 2234 } | |
| 102 | 2235 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",rrn,lb,code_base); |
| 2236 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",rrn,lb,code_base,rrn); | |
| 108 | 2237 printf("\tlfd %s,0(%s)\n",frn,rrn); |
| 90 | 2238 free_register(r); |
| 107 | 2239 fregv[freg]=1; |
| 89 | 2240 } |
| 2241 | |
| 107 | 2242 void code_dneg(int freg) |
| 89 | 2243 { |
| 97 | 2244 char *frn = fregister_name(freg); |
| 95 | 2245 printf("\tfneg %s,%s\n",frn,frn); |
| 89 | 2246 } |
| 2247 | |
| 107 | 2248 void code_d2i(int freg,int creg) |
| 89 | 2249 { |
| 97 | 2250 char *frn = fregister_name(freg); |
| 95 | 2251 char *crn = register_name(creg); |
| 119 | 2252 int e2 = new_lvar(size_of_double); |
| 2253 free_lvar(e2); | |
| 93 | 2254 printf("\tfctiwz %s,%s\n",frn,frn); |
| 119 | 2255 lvar_intro(e2); |
| 2256 printf("\tstfd %s,",frn); lvar(e2); | |
| 2257 lvar_intro(e2+size_of_double-size_of_int); | |
| 2258 printf("\tlwz %s,",crn); lvar(e2+size_of_double-size_of_int); | |
| 90 | 2259 fregs[freg]=0; |
| 2260 regs[creg]=1; | |
| 89 | 2261 } |
| 2262 | |
| 91 | 2263 static int i2d_lib_used=0; |
| 2264 static char *i2d_lib[] = { | |
| 2265 ".data", | |
| 108 | 2266 /* ".literal8", */ |
| 91 | 2267 " .align 3", |
| 2268 "__i2dLC0:", | |
| 2269 " .long 1127219200", | |
| 2270 " .long -2147483648", | |
| 2271 ".text", | |
| 2272 " .align 2", | |
| 111 | 2273 "i2d_:", |
| 91 | 2274 " mflr r0", |
| 2275 " bcl 20,31,__i2dL1$pb", | |
| 2276 "__i2dL1$pb:", | |
| 2277 " mflr r10", | |
| 2278 " mtlr r0", | |
| 2279 " xoris r3,r3,0x8000", | |
| 116 | 2280 " stw r3,-28(r30)", |
| 91 | 2281 " lis r0,0x4330", |
| 116 | 2282 " stw r0,-32(r30)", |
| 2283 " lfd f0,-32(r30)", | |
| 91 | 2284 " addis r9,r10,ha16(__i2dLC0-__i2dL1$pb)", |
| 2285 " lfd f1,lo16(__i2dLC0-__i2dL1$pb)(r9)", | |
| 2286 " fsub f1,f0,f1", | |
| 2287 " blr", | |
| 2288 0 | |
| 2289 }; | |
| 2290 | |
| 107 | 2291 void code_i2d(int creg,int freg) |
| 89 | 2292 { |
| 95 | 2293 i2d_lib_used = 1; |
| 113 | 2294 clear_ptr_cache(); |
| 2295 code_save_stacks(); | |
| 104 | 2296 set_creg(RET_REGISTER,1); |
| 91 | 2297 printf("\tbl i2d_\n"); |
| 104 | 2298 set_freg(RET_FREGISTER,0); |
| 90 | 2299 fregs[freg]=1; |
| 2300 regs[creg]=0; | |
| 89 | 2301 } |
| 2302 | |
| 91 | 2303 static int d2u_lib_used=0; |
| 2304 static char *d2u_lib[] = { | |
| 108 | 2305 /* ".literal8", */ |
| 91 | 2306 " .align 3", |
| 2307 "__d2uLC0:", | |
| 2308 " .long 1105199104", | |
| 2309 " .long 0", | |
| 2310 ".text", | |
| 2311 " .align 2", | |
| 111 | 2312 "d2u_:", |
| 91 | 2313 " mflr r0", |
| 2314 " bcl 20,31,__d2uL1$pb", | |
| 2315 "__d2uL1$pb:", | |
| 2316 " mflr r10", | |
| 2317 " mtlr r0", | |
| 2318 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2319 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2320 " fcmpu cr0,f1,f0", | |
| 2321 " cror 2,1,2", | |
| 2322 " beq- cr0,__d2uL2", | |
| 2323 " fctiwz f0,f1", | |
| 116 | 2324 " stfd f0,-32(r30)", |
| 2325 " lwz r3,-28(r30)", | |
| 91 | 2326 " blr", |
| 2327 "__d2uL2:", | |
| 2328 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2329 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2330 " fsub f0,f1,f0", | |
| 2331 " fctiwz f0,f0", | |
| 116 | 2332 " stfd f0,-24(r30)", |
| 2333 " lwz r3,-20(r30)", | |
| 91 | 2334 " xoris r3,r3,0x8000", |
| 2335 " blr", | |
| 2336 0 | |
| 2337 }; | |
| 2338 | |
| 107 | 2339 void code_d2u(int freg,int creg) |
| 89 | 2340 { |
| 113 | 2341 code_save_stacks(); |
| 2342 clear_ptr_cache(); | |
| 91 | 2343 d2u_lib_used=1; |
| 104 | 2344 set_freg(RET_FREGISTER,1); |
| 111 | 2345 printf("\tbl d2u_\n"); |
| 104 | 2346 set_creg(RET_REGISTER,0); |
| 91 | 2347 fregs[freg]=1; |
| 2348 regs[creg]=0; | |
| 2349 } | |
| 90 | 2350 |
| 91 | 2351 static int u2d_lib_used=0; |
| 2352 static char *u2d_lib[] = { | |
| 2353 ".data", | |
| 108 | 2354 /* ".literal8", */ |
| 91 | 2355 " .align 3", |
| 2356 "__u2dLC1:", | |
| 2357 " .long 1127219200", | |
| 2358 " .long 0", | |
| 2359 ".text", | |
| 2360 " .align 2", | |
| 111 | 2361 "u2d_:", |
| 91 | 2362 " mflr r0", |
| 2363 " bcl 20,31,__u2dL2$pb", | |
| 2364 "__u2dL2$pb:", | |
| 2365 " mflr r10", | |
| 2366 " mtlr r0", | |
| 116 | 2367 " stw r3,-28(r30)", |
| 91 | 2368 " lis r0,0x4330", |
| 116 | 2369 " stw r0,-32(r30)", |
| 2370 " lfd f0,-32(r30)", | |
| 91 | 2371 " addis r9,r10,ha16(__u2dLC1-__u2dL2$pb)", |
| 2372 " lfd f1,lo16(__u2dLC1-__u2dL2$pb)(r9)", | |
| 2373 " fsub f1,f0,f1", | |
| 2374 " blr", | |
| 2375 0 | |
| 2376 }; | |
| 89 | 2377 |
| 107 | 2378 void code_u2d(int creg,int freg) |
| 89 | 2379 { |
| 115 | 2380 char *frn; |
| 2381 char *crn; | |
| 95 | 2382 u2d_lib_used = 1; |
| 113 | 2383 code_save_stacks(); |
| 2384 clear_ptr_cache(); | |
| 115 | 2385 frn = fregister_name(freg); |
| 2386 crn = register_name(creg); | |
| 2387 | |
| 91 | 2388 printf("\tmr r3,%s\n",crn); |
| 111 | 2389 printf("\tbl u2d_\n"); |
| 91 | 2390 printf("\tfmr %s,f1\n",frn); |
| 2391 fregs[freg]=1; | |
| 2392 regs[creg]=0; | |
| 89 | 2393 } |
| 2394 | |
| 107 | 2395 void code_drgvar(int e2,int d,int freg) |
| 89 | 2396 { |
| 91 | 2397 int r; |
| 109 | 2398 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2399 printf("\t%s %s,0(%s)\n",fload(d),fregister_name(freg),register_name(r)); |
| 107 | 2400 fregv[freg]=1; |
| 89 | 2401 } |
| 2402 | |
| 2403 | |
| 107 | 2404 void code_drlvar(int e2,int d,int freg) |
| 89 | 2405 { |
| 119 | 2406 lvar_intro(e2); |
| 2407 printf("\t%s %s,",fload(d),fregister_name(freg)); lvar(e2); | |
| 107 | 2408 fregv[freg]=1; |
| 89 | 2409 } |
| 2410 | |
| 2411 void code_cmp_drgvar(int e2) | |
| 2412 { | |
| 91 | 2413 int r; |
| 97 | 2414 char *frn=fregister_name(freg); |
| 2415 int g=get_fregister(); | |
| 2416 char *grn=fregister_name(g); | |
| 109 | 2417 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2418 printf("\t%s %s,0(%s)\n",fload(1),grn,register_name(r)); |
| 91 | 2419 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2420 free_fregister(g); |
| 107 | 2421 fregv[freg]=0; |
| 89 | 2422 } |
| 2423 | |
| 2424 void code_cmp_drlvar(int e2) | |
| 2425 { | |
| 97 | 2426 char *frn=fregister_name(freg); |
| 2427 int g=get_fregister(); | |
| 2428 char *grn=fregister_name(g); | |
| 108 | 2429 |
| 119 | 2430 lvar_intro(e2); |
| 2431 printf("\t%s %s,",fload(1),grn); lvar(e2); | |
| 91 | 2432 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2433 free_fregister(g); |
| 107 | 2434 fregv[freg]=0; |
| 89 | 2435 } |
| 2436 | |
| 2437 void dtosop(int op,int e1) | |
| 2438 { | |
| 91 | 2439 char *opn; |
| 97 | 2440 char *frn=fregister_name(freg); |
| 2441 char *grn=fregister_name(e1); | |
| 107 | 2442 fregv[freg]=1; |
| 89 | 2443 switch(op) { |
| 91 | 2444 case DADD: opn="fadd"; break; |
| 101 | 2445 case DSUB: opn="fsub"; break; |
| 2446 case DDIV: opn="fdiv"; break; | |
| 2447 case DMUL: opn="fmul"; break; | |
| 91 | 2448 case DCMP: |
| 108 | 2449 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 101 | 2450 free_fregister(e1); |
| 2451 return; | |
| 91 | 2452 case DCMPGE: |
| 108 | 2453 printf("\tfcmpu cr7,%s,%s\n",frn,grn); |
| 101 | 2454 free_fregister(e1); |
| 2455 return; | |
| 89 | 2456 } |
| 91 | 2457 printf("\t%s %s,%s,%s\n",opn,frn,frn,grn); |
| 101 | 2458 free_fregister(e1); |
| 89 | 2459 } |
| 2460 | |
| 2461 void | |
| 2462 code_dassop(int op,int d) { | |
| 91 | 2463 /* we have lvalue in creg, applied floating value is in freg */ |
| 97 | 2464 char *frn=fregister_name(freg); |
| 102 | 2465 int xreg=emit_dpop(0); |
| 91 | 2466 char *crn=register_name(creg); |
| 2467 | |
| 108 | 2468 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 102 | 2469 dtosop(op,xreg); |
| 108 | 2470 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 102 | 2471 emit_dpop_free(xreg); |
| 107 | 2472 fregv[freg]=1; |
| 89 | 2473 } |
| 2474 | |
| 91 | 2475 |
| 89 | 2476 void |
| 107 | 2477 code_dpreinc(int e1,int e2,int d,int reg) { |
| 91 | 2478 char *frn; |
| 2479 char *crn; | |
| 2480 int g; | |
| 2481 char *grn,*drn; | |
| 2482 int r; | |
| 109 | 2483 r = get_ptr_cache(&float_one); |
| 96 | 2484 float_one_lib_used=1; |
| 91 | 2485 |
| 89 | 2486 g_expr(e2); |
| 91 | 2487 |
| 2488 crn=register_name(creg); | |
| 97 | 2489 frn=fregister_name(freg); |
| 91 | 2490 drn=register_name(r); |
| 97 | 2491 grn=fregister_name(g=get_fregister()); |
| 91 | 2492 |
| 108 | 2493 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2494 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2495 if (caddr(e1)>0) |
| 91 | 2496 printf("\tfadd %s,%s,%s\n",frn,frn,grn); |
| 89 | 2497 else |
| 91 | 2498 printf("\tfsub %s,%s,%s\n",frn,frn,grn); |
| 108 | 2499 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 97 | 2500 free_fregister(g); |
| 107 | 2501 fregv[freg]=1; |
| 89 | 2502 } |
| 2503 | |
| 2504 void | |
| 107 | 2505 code_dpostinc(int e1,int e2,int d,int reg) { |
| 91 | 2506 char *frn; |
| 2507 char *crn; | |
| 2508 int g; | |
| 2509 char *grn,*drn; | |
| 2510 int r; | |
| 109 | 2511 r = get_ptr_cache(&float_one); |
| 96 | 2512 float_one_lib_used=1; |
| 91 | 2513 |
| 89 | 2514 g_expr(e2); |
| 91 | 2515 |
| 2516 crn=register_name(creg); | |
| 97 | 2517 frn=fregister_name(freg); |
| 91 | 2518 drn=register_name(r); |
| 97 | 2519 grn=fregister_name(g=get_fregister()); |
| 91 | 2520 |
| 108 | 2521 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2522 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2523 if (caddr(e1)>0) |
| 91 | 2524 printf("\tfadd %s,%s,%s\n",grn,frn,grn); |
| 89 | 2525 else |
| 91 | 2526 printf("\tfsub %s,%s,%s\n",grn,frn,grn); |
| 108 | 2527 printf("\t%s %s,0(%s)\n",fstore(d),grn,crn); |
| 97 | 2528 free_fregister(g); |
| 107 | 2529 fregv[freg]=1; |
| 89 | 2530 } |
| 2531 | |
| 2532 void | |
| 2533 drexpr(int e1, int e2,int l1, int op) | |
| 2534 { | |
| 91 | 2535 g_expr(list3(((op==DOP+GE)?DCMPGE:DCMP),e1,e2)); |
| 89 | 2536 switch(op) { |
| 2537 case DOP+GE: | |
| 91 | 2538 printf("\tcror 2,29,30\n"); |
| 111 | 2539 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2540 break; |
| 2541 case DOP+GT: | |
| 111 | 2542 printf("\tble\tcr0,L_%d\n",l1); |
| 89 | 2543 break; |
| 2544 case DOP+EQ: | |
| 111 | 2545 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2546 break; |
| 2547 case DOP+NEQ: | |
| 111 | 2548 printf("\tbeq\tcr0,L_%d\n",l1); |
| 89 | 2549 break; |
| 2550 } | |
| 2551 } | |
| 2552 | |
| 2553 int emit_dpop(int e1) | |
| 2554 { | |
| 114 | 2555 int xreg,reg; |
| 97 | 2556 xreg=pop_fregister(); |
| 2557 if (xreg<= -REG_LVAR_OFFSET) { | |
| 114 | 2558 reg = get_fregister(); |
| 119 | 2559 code_drlvar(REG_LVAR_OFFSET+xreg,1,reg); |
| 117 | 2560 free_lvar(REG_LVAR_OFFSET+xreg); |
| 114 | 2561 fregv[reg]=1; xreg=reg; |
| 96 | 2562 } |
| 2563 return xreg; | |
| 89 | 2564 } |
| 2565 | |
| 2566 void emit_dpop_free(int e1) | |
| 2567 { | |
| 97 | 2568 free_fregister(e1); |
| 89 | 2569 } |
| 2570 | |
| 2571 void emit_dpush() | |
| 2572 { | |
| 97 | 2573 int new_reg; |
| 102 | 2574 if (freg_sp>MAX_MAX) error(-1); |
| 97 | 2575 new_reg = get_fregister(); |
| 2576 freg_stack[freg_sp++] = freg; /* push ���뤫���˥쥸������Ȥ� */ | |
| 2577 freg = new_reg; | |
| 2578 fregv[freg]=1; | |
| 89 | 2579 } |
| 2580 | |
| 95 | 2581 void |
| 2582 code_save_stacks() | |
| 2583 { | |
| 103 | 2584 int i,reg; |
| 101 | 2585 for(i=0;i<reg_sp;i++) { |
| 103 | 2586 if ((reg=reg_stack[i])>=0) { |
| 101 | 2587 code_assign_lvar( |
| 119 | 2588 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 101 | 2589 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 2590 } | |
| 2591 } | |
| 2592 for(i=0;i<freg_sp;i++) { | |
| 103 | 2593 if ((reg=freg_stack[i])>=0) { |
| 101 | 2594 code_dassign_lvar( |
| 119 | 2595 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 101 | 2596 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 2597 } | |
| 2598 } | |
| 96 | 2599 } |
| 2600 | |
| 2601 void | |
| 2602 emit_lib(char *p[]) | |
| 95 | 2603 { |
| 98 | 2604 while(*p) { |
| 2605 printf("%s\n",*p++); | |
| 96 | 2606 } |
| 2607 } | |
| 2608 | |
| 2609 void | |
| 2610 code_closing() | |
| 2611 { | |
| 2612 if (d2u_lib_used) emit_lib(d2u_lib); | |
| 2613 if (u2d_lib_used) emit_lib(u2d_lib); | |
| 2614 if (float_one_lib_used) emit_lib(float_one_lib); | |
| 98 | 2615 if (float_zero_lib_used) emit_lib(float_zero_lib); |
| 96 | 2616 if (i2d_lib_used) emit_lib(i2d_lib); |
| 97 | 2617 global_table(); |
| 108 | 2618 /* printf("\t.ident \"Micro-C compiled\"\n"); */ |
| 95 | 2619 } |
| 2620 | |
| 89 | 2621 /* end */ |
| 2622 |