Mercurial > hg > CbC > old > device
annotate mc-code-powerpc.c @ 193:ce0c38b6c85e
try long long
| author | kono |
|---|---|
| date | Sun, 14 Dec 2003 16:53:42 +0900 |
| parents | f53d70110377 |
| children | c193120ee2a6 |
| 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 | |
| 173 | 9 char *l_include_path[] = { |
| 10 "/usr/include/", | |
| 11 0 | |
| 12 }; | |
| 13 | |
| 89 | 14 #define TEXT_EMIT_MODE 0 |
| 15 #define DATA_EMIT_MODE 1 | |
| 16 #define RODATA_EMIT_MODE 2 | |
| 17 | |
| 93 | 18 static void data_mode(char *name); |
| 19 static void init_ptr_cache(); | |
| 162 | 20 static void ld_indexx(int byte, int n, int xreg,int sign); |
| 93 | 21 static void local_table(void); |
| 22 static void shift(char *op, int reg); | |
| 119 | 23 static int struct_push(int e4,int t,int arg); |
| 93 | 24 |
| 89 | 25 static int output_mode = TEXT_EMIT_MODE; |
| 26 static int data_alignment = 0; | |
| 27 | |
| 28 static int code_disp_label; | |
| 111 | 29 static int code_setup; |
| 116 | 30 static int r1_offset_label; |
| 31 static int lvar_offset_label; | |
| 32 | |
| 33 static int reg_save; | |
| 34 static int freg_save; | |
| 35 | |
| 147 | 36 static int freg,ireg; |
| 37 | |
| 116 | 38 int size_of_int = 4; |
| 165 | 39 int size_of_short = 2; |
| 116 | 40 int size_of_float = 4; |
| 41 int size_of_double = 8; | |
| 42 int size_of_longlong = 8; | |
| 43 int endian = 1; | |
| 111 | 44 |
| 138 | 45 int reg_sp; /* REGister Stack-Pointer */ |
| 46 int reg_stack[MAX_MAX]; /* 実際のレジスタの領域 */ | |
| 47 | |
| 48 /* floating point registers */ | |
| 49 | |
| 50 int freg_sp; /* floating point REGister Stack-Pointer */ | |
| 51 int freg_stack[MAX_MAX]; /* 実際のレジスタの領域 */ | |
| 89 | 52 |
| 119 | 53 #define REG_fp 1 |
| 54 #define REG_sp 30 | |
| 55 #define REG_VAR_BASE 29 | |
| 130 | 56 #define REG_VAR_MIN 18 |
| 119 | 57 #define MIN_TMP_REG 3 |
| 130 | 58 #define MAX_TMP_REG 11 |
| 119 | 59 |
| 60 #define PTRC_REG 3 | |
| 61 | |
| 62 #define FREG_VAR_BASE 31 | |
| 130 | 63 #define FREG_VAR_MIN 20 |
| 119 | 64 #define MIN_TMP_FREG 1 |
| 130 | 65 #define MAX_TMP_FREG 14 |
| 119 | 66 |
| 67 #define RET_REGISTER 3 | |
| 145 | 68 #define RET_FREGISTER (1+FREG_OFFSET) |
| 119 | 69 |
| 70 int MAX_REGISTER=30; /* PowerPCのレジスタを10個まで使う*/ | |
| 122 | 71 int MAX_FREGISTER=31; |
| 119 | 72 #define REAL_MAX_REGISTER 32 /* PowerPCのレジスタが32ということ*/ |
| 73 #define REAL_MAX_FREGISTER 32 /* PowerPCのレジスタが32ということ*/ | |
| 74 | |
| 145 | 75 #define FREG_OFFSET REAL_MAX_REGISTER |
| 76 | |
| 122 | 77 int MAX_INPUT_REGISTER_VAR = 11-MIN_TMP_REG; |
| 78 int MAX_CODE_INPUT_REGISTER_VAR = 11-MIN_TMP_REG; | |
| 79 int MAX_INPUT_DREGISTER_VAR = 14-MIN_TMP_FREG; | |
| 138 | 80 int MAX_INPUT_FREGISTER_VAR = 14-MIN_TMP_FREG; |
| 122 | 81 int MAX_CODE_INPUT_DREGISTER_VAR = 14-MIN_TMP_FREG; |
| 138 | 82 int MAX_CODE_INPUT_FREGISTER_VAR = 14-MIN_TMP_FREG; |
| 119 | 83 |
| 84 #define CREG_REGISTER MAX_TMP_REG | |
| 145 | 85 #define FREG_FREGISTER (MAX_TMP_FREG+FREG_OFFSET) |
| 119 | 86 |
| 145 | 87 int powerpc_regs[REAL_MAX_REGISTER+REAL_MAX_FREGISTER]; |
| 88 int powerpc_regv[REAL_MAX_REGISTER+REAL_MAX_FREGISTER]; | |
| 119 | 89 |
| 90 int *regv = powerpc_regv; | |
| 91 int *regs = powerpc_regs; | |
| 92 | |
| 93 static int max_reg_var, max_freg_var; | |
| 94 static int cond_reg=-1,cond_freg=-1; | |
| 95 | |
| 96 static char *reg_name[] = { | |
| 97 "r0","r1","r2","r3","r4","r5","r6","r7","r8","r9", | |
| 98 "r10","r11","r12","r13","r14","r15","r16","r17","r18","r19", | |
| 99 "r20","r21","r22","r23","r24","r25","r26","r27","r28","r29", | |
| 145 | 100 "r30","r31", |
| 119 | 101 "f0","f1","f2","f3","f4","f5","f6","f7","f8","f9", |
| 102 "f10","f11","f12","f13","f14","f15","f16","f17","f18","f19", | |
| 103 "f20","f21","f22","f23","f24","f25","f26","f27","f28","f29", | |
| 104 "f30","f31" | |
| 105 }; | |
| 106 | |
| 107 #define register_name(i) reg_name[i] | |
| 145 | 108 #define fregister_name(i) reg_name[i] |
| 119 | 109 |
| 147 | 110 #define is_int_reg(i) (0<=i&&i<REAL_MAX_REGISTER) |
| 111 #define is_float_reg(i) (REAL_MAX_REGISTER<=i&&i<REAL_MAX_FREGISTER+REAL_MAX_REGISTER) | |
| 112 | |
| 113 | |
| 114 int use_int(int i) { | |
| 115 if (!is_int_reg(i)) i = ireg; | |
| 116 if (!regs[i]) regs[i]=1; | |
| 117 return i; | |
| 118 } | |
| 119 | |
| 120 int use_float(int i) { | |
| 121 if (!is_float_reg(i)) i = freg; | |
| 122 if (!regs[i]) regs[i]=1; | |
| 123 return i; | |
| 124 } | |
| 125 | |
| 126 int use_double(int i) { | |
| 127 if (!is_float_reg(i)) i = freg; | |
| 128 if (!regs[i]) regs[i]=1; | |
| 129 return i; | |
| 130 } | |
| 131 | |
| 119 | 132 static |
| 133 NMTBL float_zero = {"_float_zero",STATIC,FLOAT,0}; | |
| 134 static | |
| 135 NMTBL float_one = {"_float_one",STATIC,FLOAT,0}; | |
| 136 | |
| 137 | |
| 138 static char * fload(int d); | |
| 139 static int code_d1(double d); | |
| 140 static int code_d2(double d); | |
| 141 static void code_save_stacks(); | |
| 142 static void code_save_input_registers(); | |
| 143 static void clear_ptr_cache_reg(int r); | |
| 144 static void set_creg(int,int); | |
| 145 static void set_freg(int,int); | |
| 146 | |
| 153 | 147 static int max_func_args; |
| 148 static int my_func_args; | |
| 119 | 149 #define ARG_LVAR_OFFSET 0x10000000 |
| 150 | |
| 126 | 151 /* |
| 89 | 152 |
| 97 | 153 r0 return value etc. |
| 154 r3-r10 input register | |
| 126 | 155 r22-r29 saved register variable (input register for code segement) |
| 89 | 156 r30 stack pointer |
| 157 r31 0 | |
| 158 r1 frame pointer | |
| 97 | 159 |
| 160 f0 return value etc. | |
| 161 f1-r8 input register | |
| 162 f24-f31 saved register variable | |
| 116 | 163 |
| 127 | 164 function call stack frame |
| 116 | 165 <------r1_offset------------------------------> |
| 166 <------------lvar_offset-------> | |
| 167 r+ +------------+---+---------------+----------+--------------+----+ - | |
| 122 | 168 callee arg xx register save local caller arg xx |
| 116 | 169 reg_save disp max_func_args*size_of_int |
| 119 | 170 lvar>0 lvar<0 lvar>0x1000 0000 |
| 127 | 171 |
| 172 code segment stack frame | |
| 173 | |
| 174 * gotoを呼び出した関数のr1 ! r1(goto前のr1) | |
| 128 | 175 # * r30 <---r1_offset---------> r1 |
| 127 | 176 r+ +----------+--+----------+----------------+-----------+----------+----+ |
| 177 cousin arg xx reg save !callee arg !code local caller arg xx | |
| 178 r20-r29 lvar>0 lvar<0 lvar>0x1000 000 | |
| 179 f20-f31 <-my_func_args--><--disp-----><-max_func_arg-> | |
| 180 *size_of_int *size_of_int | |
| 181 | |
| 89 | 182 */ |
| 122 | 183 int arg_offset = 24; int arg_offset1 = 24; int disp_offset = -12; |
| 184 #define func_disp_offset 60 | |
| 185 #define r1_offset func_disp_offset+12 | |
| 121 | 186 int code_disp_offset = 0; int jump_offset = 0; |
| 187 #define CODE_LVAR l+code_disp_offset | |
| 129 | 188 #define CODE_CALLER_ARG (l-ARG_LVAR_OFFSET)+arg_offset1 |
| 121 | 189 #define FUNC_LVAR l+disp_offset |
| 190 #define CALLER_ARG (l-ARG_LVAR_OFFSET)+arg_offset1 | |
| 191 #define CALLEE_ARG l+arg_offset | |
| 89 | 192 |
| 116 | 193 void |
| 194 code_offset_set() | |
| 195 { | |
| 126 | 196 #if 0 |
| 121 | 197 int l; |
| 126 | 198 #endif |
| 121 | 199 int lvar_offsetv = -disp+max_func_args*size_of_int+func_disp_offset; |
| 200 int r1_offsetv = -disp+max_func_args*size_of_int-reg_save+r1_offset; | |
| 201 printf(".set L_%d,%d\n",lvar_offset_label,lvar_offsetv); | |
| 202 printf(".set L_%d,%d\n",r1_offset_label,r1_offsetv); | |
| 126 | 203 #if 0 |
| 121 | 204 printf("# function %s\n",fnptr->nm); |
| 205 l = ARG_LVAR_OFFSET; | |
| 206 printf("# offset call0\t%d\n",CALLER_ARG); | |
| 207 l = ARG_LVAR_OFFSET+max_func_args*size_of_int; | |
| 122 | 208 printf("# offset calln\t%d %d\n",CALLER_ARG,max_func_args*size_of_int); |
| 121 | 209 l = disp; |
| 122 | 210 printf("# offset lvarn\t%d %d\n",FUNC_LVAR+lvar_offsetv,disp); |
| 121 | 211 l = 0; |
| 212 printf("# offset lvar0\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 213 l = -reg_save; | |
| 214 printf("# offset regs\t%d\n",FUNC_LVAR+lvar_offsetv); | |
| 215 printf("# offset r1off\t%d\n",r1_offsetv); | |
| 216 l = 0; | |
| 217 printf("# offset carg0\t%d\n",CALLEE_ARG+r1_offsetv); | |
| 218 l = my_func_args; | |
| 122 | 219 printf("# offset cargn\t%d %d\n",CALLEE_ARG+r1_offsetv,my_func_args); |
| 126 | 220 #endif |
| 116 | 221 } |
| 111 | 222 |
| 119 | 223 |
| 224 static void | |
| 225 lvar8(int l) | |
| 116 | 226 { |
| 227 if (fnptr->sc==CODE) { | |
| 129 | 228 if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 229 printf("lo16(%d)(r1)\n",CODE_CALLER_ARG); | |
| 230 } else | |
| 231 printf("lo16(%d)(r30)\n",CODE_LVAR); | |
| 119 | 232 } else if (l<0) { /* local variable */ |
| 233 printf("lo16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 234 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 235 printf("lo16(%d)(r30)\n",CALLER_ARG); |
| 236 } else { /* callee's arguments */ | |
| 121 | 237 printf("lo16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 116 | 238 } |
| 239 } | |
| 111 | 240 |
| 119 | 241 /* if size of local variables / input variables is more then 64k, |
| 242 lo16 does not work. We have to use ha16 also. But we can't know | |
| 243 the exact size in one path compile. We may safely use lvar16ha | |
| 244 if disp or max_func_args > 32k. Of course this is reduantant for | |
| 245 smaller offset. But who cares who use very large local variables? | |
| 246 */ | |
| 96 | 247 |
| 119 | 248 #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
|
249 |
| 119 | 250 static void |
| 251 lvar16ha(int l) | |
| 252 { | |
| 253 if (fnptr->sc==CODE) { | |
| 129 | 254 if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 255 printf("la r0,ha16(%d)(r1)\n",CODE_CALLER_ARG); | |
| 256 } else | |
| 257 printf("la r0,ha16(%d)(r30)\n",CODE_LVAR); | |
| 119 | 258 } else if (l<0) { /* local variable */ |
| 259 printf("la r0,ha16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 260 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 261 if (CALLER_ARG>32765) |
| 262 printf("la r0,ha16(%d)(r30)\n",CALLER_ARG); | |
| 263 } else { /* callee's arguments */ | |
| 121 | 264 printf("la r0,ha16(%d+L_%d)(r30)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 265 } |
| 266 } | |
| 95 | 267 |
| 119 | 268 static void |
| 269 lvar16lo(int l) | |
| 270 { | |
| 271 if (fnptr->sc==CODE) { | |
| 129 | 272 if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 273 printf("lo16(%d)(r0)\n",CODE_CALLER_ARG); | |
| 274 } else | |
| 275 printf("lo16(%d)(r0)\n",CODE_LVAR); | |
| 119 | 276 } else if (l<0) { /* local variable */ |
| 277 printf("lo16(%d+L_%d)(r0)\n",FUNC_LVAR,lvar_offset_label); | |
| 125 | 278 } else if (l>=ARG_LVAR_OFFSET) { /* caller's arguments */ |
| 119 | 279 if (CALLER_ARG>32765) |
| 280 printf("lo16(%d)(r0)\n",CALLER_ARG); | |
| 281 else | |
| 282 printf("lo16(%d)(r30)\n",CALLER_ARG); | |
| 283 } else { /* callee's arguments */ | |
| 121 | 284 printf("lo16(%d+L_%d)(r0)\n",CALLEE_ARG,r1_offset_label); |
| 119 | 285 } |
| 286 } | |
| 89 | 287 |
| 119 | 288 #define lvar_intro(i) if (LARGE_LVAR) lvar16ha(i) |
| 289 | |
| 290 #define lvar(i) if (LARGE_LVAR) lvar16lo(i); else lvar8(i) | |
| 89 | 291 |
| 119 | 292 void |
| 293 code_lvar(int e2,int creg) { | |
| 294 lvar_intro(e2); | |
| 295 printf("\tla %s,",register_name(creg)); | |
| 296 lvar(e2); | |
| 297 regv[creg]=1; | |
| 298 } | |
| 95 | 299 |
| 89 | 300 void |
| 301 code_init(void) | |
| 302 { | |
| 173 | 303 macro_define("__ppc__ 1\n"); |
| 177 | 304 macro_define("__BIG_ENDIAN__ 1\n"); |
| 182 | 305 // macro_define("_BSD_CT_RUNE_T_ int\n"); |
| 185 | 306 macro_define("__STDC__ 1\n"); |
| 102 | 307 init_ptr_cache(); |
| 89 | 308 } |
| 309 | |
| 310 void | |
| 311 gexpr_code_init(void){ | |
| 172 | 312 #if 0 |
| 313 int new_reg,old_reg,dm; | |
| 314 /* register shuffling */ | |
| 315 if (is_int_reg(creg)) { | |
| 316 dm = get_register(); | |
| 317 new_reg = get_register(); | |
| 318 old_reg = creg; | |
| 319 ireg = creg = new_reg; | |
| 320 } else if (is_float_reg(creg)) { | |
| 321 dm = get_dregister(1); | |
| 322 new_reg = get_dregister(1); | |
| 323 old_reg = creg; | |
| 324 freg = creg = new_reg; | |
| 325 } | |
| 326 free_register(old_reg); | |
| 327 free_register(dm); | |
| 328 #endif | |
| 89 | 329 regv[creg]=0; |
| 145 | 330 regv[freg]=0; |
| 96 | 331 } |
| 332 | |
| 147 | 333 void |
| 334 code_gexpr(int e){ | |
| 335 if (is_int_reg(creg) && creg!=ireg) error(-1); | |
| 336 } | |
| 337 | |
| 89 | 338 |
| 109 | 339 void |
| 137 | 340 code_arg_register(NMTBL *fnptr) |
| 109 | 341 { |
| 137 | 342 int args = fnptr->dsp; |
| 343 NMTBL *n; | |
| 344 int reg_var = 0; | |
| 345 int freg_var = 0; | |
| 346 int type; | |
| 347 int reg; | |
| 348 int is_code0 = is_code(fnptr); | |
| 349 | |
| 350 while (args) { | |
| 351 /* process in reverse order */ | |
| 352 n = (NMTBL*)caddr(args); | |
| 353 type = n->ty; | |
| 354 if (scalar(type)) { | |
| 355 if ((reg = get_input_register_var(reg_var,n,is_code0))) { | |
| 356 n->sc = REGISTER; | |
| 357 n->dsp = cadr(reg); | |
| 358 regv[n->dsp]= 1; | |
| 359 regs[n->dsp]= INPUT_REG; | |
| 360 reg_var++; | |
| 361 cadddr(args)=size_of_int; /* why we need this? */ | |
| 362 } | |
| 138 | 363 } else if (type==FLOAT) { |
| 364 if ((reg = get_input_dregister_var(freg_var,n,is_code0,0))) { | |
| 365 n->sc = DREGISTER; | |
| 366 n->dsp = cadr(reg); | |
| 145 | 367 regv[n->dsp]= 1; |
| 368 regs[n->dsp]= INPUT_REG; | |
| 138 | 369 freg_var++; |
| 370 cadddr(args)=size(type); /* why we need this? */ | |
| 371 } | |
| 372 } else if (type==DOUBLE) { | |
| 373 if ((reg = get_input_dregister_var(freg_var,n,is_code0,1))) { | |
| 137 | 374 n->sc = DREGISTER; |
| 375 n->dsp = cadr(reg); | |
| 145 | 376 regv[n->dsp]= 1; |
| 377 regs[n->dsp]= INPUT_REG; | |
| 137 | 378 freg_var++; |
| 379 cadddr(args)=size(type); /* why we need this? */ | |
| 380 } | |
| 381 } | |
| 382 args = cadr(args); | |
| 383 } | |
| 126 | 384 if (is_function(fnptr)) |
| 385 code_save_input_registers(); | |
| 109 | 386 } |
| 387 | |
| 89 | 388 int |
| 389 get_register(void) | |
| 390 { /* 使われていないレジスタを調べる */ | |
| 120 | 391 int i,reg; |
| 96 | 392 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { |
| 102 | 393 if (regs[i]) continue; /* 使われている */ |
| 394 regs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 395 return i; /* その場所を表す番号を返す */ | |
| 396 } | |
| 135 | 397 /* PTR_CACHE をつぶす */ |
| 102 | 398 for(i=MAX_TMP_REG;i>MIN_TMP_REG;i--) { |
| 119 | 399 if (regs[i]==PTRC_REG) { |
| 98 | 400 clear_ptr_cache_reg(i); |
| 96 | 401 } else |
| 402 continue; | |
| 403 regs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 404 return i; /* その場所を表す番号を返す */ | |
| 405 } | |
| 406 /* search register stack */ | |
| 407 for(i=0;i<reg_sp;i++) { | |
| 120 | 408 if ((reg=reg_stack[i])>=0) { |
| 96 | 409 code_assign_lvar( |
| 120 | 410 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 96 | 411 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 412 return reg; |
| 89 | 413 } |
| 414 } | |
| 130 | 415 for(i=0;i<REG_VAR_BASE-REG_VAR_MIN;i++) { |
| 416 reg =REG_VAR_BASE-i; | |
| 417 if (! regs[reg]) { /* 使われていないなら */ | |
| 418 regs[reg]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 419 regv[reg]=0; | |
| 420 if (i>max_reg_var) max_reg_var=i; | |
| 421 return reg; | |
| 422 } | |
| 423 } | |
| 96 | 424 /* 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?) */ |
|
136
069960078249
remove redundant funcall argument for prototyped code in PowerPC case.
kono
parents:
135
diff
changeset
|
425 error(HPERR); return creg; |
| 89 | 426 } |
| 427 | |
| 93 | 428 int |
| 429 pop_register(void) | |
| 430 { /* レジスタから値を取り出す */ | |
| 431 return reg_stack[--reg_sp]; | |
| 432 } | |
| 433 | |
| 96 | 434 int |
| 138 | 435 get_dregister(int d) |
| 96 | 436 { /* 使われていないレジスタを調べる */ |
| 103 | 437 int i,reg; |
| 145 | 438 for(i=MAX_TMP_FREG+FREG_OFFSET;i>MIN_TMP_FREG+FREG_OFFSET;i--) { |
| 439 if (regs[i]) continue; /* 使われている */ | |
| 440 regs[i]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 102 | 441 return i; /* その場所を表す番号を返す */ |
| 442 } | |
| 96 | 443 /* search register stack */ |
| 444 for(i=0;i<freg_sp;i++) { | |
| 103 | 445 if ((reg=freg_stack[i])>=0) { |
| 96 | 446 code_dassign_lvar( |
| 119 | 447 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 96 | 448 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 120 | 449 return reg; |
| 96 | 450 } |
| 451 } | |
| 130 | 452 for(i=0;i<FREG_VAR_BASE-REG_VAR_MIN;i++) { |
| 145 | 453 reg =FREG_VAR_BASE-i+FREG_OFFSET; |
| 454 if (! regs[reg]) { /* 使われていないなら */ | |
| 455 regs[reg]=USING_REG; /* そのレジスタを使うことを宣言し */ | |
| 456 regv[reg]=0; | |
| 130 | 457 if (i>max_freg_var) max_freg_var=i; |
| 458 return reg; | |
| 459 } | |
| 460 } | |
| 96 | 461 /* 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 | 462 error(REG_ERR); return freg; |
| 96 | 463 } |
| 464 | |
| 465 int | |
| 97 | 466 pop_fregister(void) |
| 96 | 467 { /* レジスタから値を取り出す */ |
| 468 return freg_stack[--freg_sp]; | |
| 469 } | |
| 470 | |
| 93 | 471 void |
| 472 emit_pop_free(int xreg) | |
| 473 { | |
| 103 | 474 if (xreg>=0) |
| 475 free_register(xreg); | |
| 93 | 476 } |
| 477 | |
| 89 | 478 void |
| 479 free_register(int i) { /* いらなくなったレジスタを開放 */ | |
| 147 | 480 if (i<0||MAX_FREGISTER+FREG_OFFSET<i) error(-1); |
| 145 | 481 regv[i]=regs[i]=0; |
| 96 | 482 } |
| 483 | |
| 89 | 484 int |
| 138 | 485 get_input_dregister_var(int i,NMTBL *n,int is_code,int d) |
| 99 | 486 { |
| 126 | 487 if (is_code) { |
| 148 | 488 if(!(i<FREG_VAR_BASE-FREG_VAR_MIN)) return 0; |
| 489 i = FREG_VAR_BASE-i+FREG_OFFSET; | |
| 126 | 490 } else { |
| 135 | 491 if (i<0||i>=MAX_INPUT_DREGISTER_VAR) return 0; |
| 145 | 492 i = i+MIN_TMP_FREG+FREG_OFFSET; |
| 126 | 493 } |
| 494 return list3(DREGISTER,i,(int)n); | |
| 99 | 495 } |
| 496 | |
| 497 int | |
| 126 | 498 get_input_register_var(int i,NMTBL *n,int is_code) |
| 99 | 499 { |
| 126 | 500 if (is_code) { |
| 131 | 501 if(!(i<REG_VAR_BASE-REG_VAR_MIN)) return 0; |
| 126 | 502 i = REG_VAR_BASE-i; |
| 503 } else { | |
| 135 | 504 if (i<0||i>=MAX_INPUT_REGISTER_VAR) return 0; |
| 505 i = i+MIN_TMP_REG; | |
| 506 } | |
| 507 return list3(REGISTER,i,(int)n); | |
| 508 } | |
| 509 | |
| 145 | 510 /* double register case? */ |
| 511 | |
| 135 | 512 int |
| 513 get_input_register_var_1(int i,NMTBL *n,int is_code) | |
| 514 { | |
| 515 if (is_code) { | |
| 516 if(!(i<REG_VAR_BASE-REG_VAR_MIN)) return 0; | |
| 517 i = REG_VAR_BASE-i; | |
| 518 } else { | |
| 519 if (i<0||i>=MAX_INPUT_REGISTER_VAR+1) return 0; | |
| 126 | 520 i = i+MIN_TMP_REG; |
| 521 } | |
| 522 return list3(REGISTER,i,(int)n); | |
| 99 | 523 } |
| 524 | |
| 525 int | |
| 137 | 526 free_register_count(int d) |
| 103 | 527 { |
| 528 int i,count,fcount; | |
| 529 fcount = count = 0; | |
| 530 for(i=0;i<MAX_REGISTER;i++) { | |
| 531 if (! regs[i] && ! regv[i]) count++; | |
| 532 } | |
| 533 for(i=0;i<MAX_FREGISTER;i++) { | |
| 145 | 534 if (! regs[i+FREG_OFFSET] && ! regv[i+FREG_OFFSET]) fcount++; |
| 103 | 535 } |
| 137 | 536 printf("# free reg %d freg %d\n",count,fcount); |
| 537 return d?fcount:count; | |
| 103 | 538 } |
| 539 | |
| 540 int | |
| 89 | 541 register_full(void) |
| 542 { | |
| 543 int i; | |
| 544 for(i=0;i<MAX_REGISTER;i++) { | |
| 545 if (! regs[i]) { | |
| 546 return 0; | |
| 547 } | |
| 548 } | |
| 549 return 1; | |
| 550 } | |
| 551 | |
| 552 void | |
| 553 free_all_register(void) | |
| 554 { | |
| 555 int i; | |
| 97 | 556 for(i=0;i<MAX_REGISTER;i++) { regs[i]=0; regv[i]=0; } |
| 145 | 557 for(i=0;i<MAX_FREGISTER;i++) { regs[i+FREG_OFFSET]=0; regv[i+FREG_OFFSET]=0; } |
| 89 | 558 creg = get_register(); |
| 138 | 559 freg = get_dregister(1); |
| 107 | 560 set_creg(CREG_REGISTER,0); |
| 561 set_freg(FREG_FREGISTER,0); | |
| 89 | 562 return; |
| 563 } | |
| 564 | |
| 565 void | |
| 566 register_usage(char *s) | |
| 567 { | |
| 141 | 568 #if 0 |
| 89 | 569 int i; |
| 126 | 570 #endif |
| 89 | 571 if (chk) return; |
| 109 | 572 if (!lsrc) return; |
| 89 | 573 printf("# %d: %s:",lineno,s); |
| 126 | 574 printf(" creg=%s fgreg=%s",register_name(creg),fregister_name(freg)); |
| 141 | 575 #if 0 |
| 126 | 576 printf("\n# regs:"); |
| 577 for(i=0;i<MAX_REGISTER;i++) { printf("%d",regv[i]); } | |
| 101 | 578 printf(":"); |
| 126 | 579 for(i=0;i<MAX_REGISTER;i++) { printf("%d",regs[i]); } |
| 101 | 580 printf("\n# freg:"); |
| 145 | 581 for(i=0;i<MAX_FREGISTER;i++) { printf("%d",regs[i+FREG_OFFSET]); } |
| 89 | 582 for(i=reg_sp;i>=0;i--) { |
| 583 if(reg_stack[i]>=0) | |
| 134 | 584 printf(" %s",register_name(reg_stack[i])); |
| 89 | 585 } |
| 586 #endif | |
| 587 printf("\n"); | |
| 588 } | |
| 589 | |
| 590 void | |
| 591 gexpr_init(void) | |
| 592 { | |
| 593 while(reg_sp > 0) { | |
| 594 free_register(reg_stack[--reg_sp]); | |
| 595 } | |
| 148 | 596 while(freg_sp > 0) { |
| 597 free_register(freg_stack[--freg_sp]); | |
| 598 } | |
| 108 | 599 if (cond_freg!=-1) { |
| 147 | 600 if(car(cond_freg)==DREGISTER) free_register(cadr(cond_freg)); |
| 601 else if(car(cond_freg)==FREGISTER) free_register(cadr(cond_freg)); | |
| 108 | 602 cond_freg=-1; |
| 603 } | |
| 604 if (cond_reg!=-1) { | |
| 605 if(car(cond_reg)==REGISTER) free_register(cadr(cond_reg)); | |
| 606 cond_reg=-1; | |
| 607 } | |
| 89 | 608 text_mode(); |
| 609 gexpr_code_init(); | |
| 610 register_usage("gexpr_init"); | |
| 611 } | |
| 612 | |
| 613 | |
| 614 void | |
| 615 emit_init(void) | |
| 616 { | |
| 617 free_all_register(); | |
| 110 | 618 max_reg_var=-1; max_freg_var=-1; |
| 89 | 619 reg_sp = 0; |
| 123 | 620 freg_sp = 0; |
| 89 | 621 text_mode(); |
| 622 } | |
| 623 | |
| 624 int | |
| 625 register_var(int r) { | |
| 99 | 626 return r; |
| 89 | 627 } |
| 628 | |
| 97 | 629 |
| 89 | 630 int |
| 105 | 631 get_register_var(NMTBL *n) |
| 89 | 632 { |
| 633 int i; | |
| 99 | 634 for(i=0;i<REG_VAR_BASE-REG_VAR_MIN;i++) { |
| 137 | 635 if (! regs[REG_VAR_BASE-i]) { /* 使われていないなら */ |
| 636 /* そのレジスタを使うことを宣言し */ | |
| 637 regs[REG_VAR_BASE-i]=USING_REG; | |
| 638 regv[REG_VAR_BASE-i]=0; | |
| 97 | 639 if (i>max_reg_var) max_reg_var=i; |
| 122 | 640 /* その場所を表す番号を返す */ |
| 641 return list3(REGISTER,REG_VAR_BASE-i,(int)n); | |
| 137 | 642 } |
| 96 | 643 } |
| 104 | 644 return list2(LVAR,new_lvar(size_of_int)); |
| 96 | 645 } |
| 646 | |
| 647 int | |
| 97 | 648 fregister_var(int r) { |
| 99 | 649 return r; |
| 96 | 650 } |
| 651 | |
| 652 int | |
| 138 | 653 get_dregister_var(NMTBL *n,int d) |
| 96 | 654 { |
| 655 int i; | |
| 148 | 656 for(i=0;i<FREG_VAR_BASE-FREG_VAR_MIN;i++) { |
| 145 | 657 if (! regs[FREG_VAR_BASE-i+FREG_OFFSET]) { /* 使われていないなら */ |
| 658 regs[FREG_VAR_BASE-i+FREG_OFFSET]=USING_REG; /*そのレジスタを使うことを宣言し*/ | |
| 659 regv[FREG_VAR_BASE-i+FREG_OFFSET]=0; | |
| 97 | 660 if (i>max_freg_var) max_freg_var=i; |
| 122 | 661 /* その場所を表す番号を返す */ |
| 145 | 662 return list3(DREGISTER,FREG_VAR_BASE-i+FREG_OFFSET,(int)n); |
| 89 | 663 } |
| 664 } | |
| 104 | 665 return list2(LVAR,new_lvar(size_of_double)); |
| 89 | 666 } |
| 667 | |
| 668 void | |
| 107 | 669 emit_push() |
| 89 | 670 { |
| 671 int new_reg; | |
| 102 | 672 if (reg_sp>MAX_MAX) error(-1); |
| 89 | 673 new_reg = get_register(); |
| 97 | 674 reg_stack[reg_sp++] = creg; /* push するかわりにレジスタを使う */ |
| 147 | 675 ireg = creg = new_reg; |
| 97 | 676 regv[creg]=1; |
| 89 | 677 } |
| 678 | |
| 679 int | |
| 93 | 680 emit_pop(int type) |
| 89 | 681 { |
| 112 | 682 int xreg,reg; |
| 97 | 683 xreg=pop_register(); |
| 684 if (xreg<= -REG_LVAR_OFFSET) { | |
| 112 | 685 reg = get_register(); |
| 119 | 686 code_rlvar(REG_LVAR_OFFSET+xreg,reg); |
| 117 | 687 free_lvar(REG_LVAR_OFFSET+xreg); |
| 112 | 688 xreg = reg; |
| 147 | 689 regv[creg]=1; |
| 97 | 690 } |
| 89 | 691 return xreg; |
| 692 } | |
| 693 | |
| 186 | 694 int |
| 695 stack_top(int type) | |
| 696 { | |
| 697 int xreg; | |
| 698 if (type==INT) { | |
| 699 xreg = reg_stack[reg_sp]; | |
| 700 if (xreg<= -REG_LVAR_OFFSET) { | |
| 701 return list2(LVAR,REG_LVAR_OFFSET+xreg); | |
| 702 } else { | |
| 703 return list2(REGISTER,xreg); | |
| 704 } | |
| 705 } else { | |
| 706 xreg = freg_stack[freg_sp]; | |
| 707 if (xreg<= -REG_LVAR_OFFSET) { | |
| 708 return list2(LVAR,REG_LVAR_OFFSET+xreg); | |
| 709 } else { | |
| 710 return list2(DREGISTER,xreg); | |
| 711 } | |
| 712 } | |
| 713 return xreg; | |
| 714 } | |
| 715 | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
716 static int code_base; |
| 89 | 717 |
| 718 #define MAX_PTR_CACHE 10 | |
| 719 | |
| 720 int ptr_cache=0; | |
| 721 | |
| 93 | 722 void |
| 90 | 723 init_ptr_cache() |
| 724 { | |
| 725 int i; | |
| 726 for(i=0;i<MAX_PTR_CACHE;i++) { | |
| 727 ptr_cache=glist3(0,ptr_cache,0); | |
| 728 } | |
| 729 } | |
| 730 | |
| 95 | 731 void |
| 96 | 732 clear_ptr_cache_reg(int r) |
| 733 { | |
| 734 int ptcptr=ptr_cache; | |
| 735 while(ptcptr) { | |
| 736 if(car(ptcptr)&&caddr(ptcptr)==r) { | |
| 737 car(ptcptr)=0; | |
| 738 caddr(ptcptr)=0; | |
| 102 | 739 free_register(r); |
| 98 | 740 return; |
| 96 | 741 } |
| 742 ptcptr=cadr(ptcptr); | |
| 743 } | |
| 744 } | |
| 745 | |
| 746 void | |
| 89 | 747 clear_ptr_cache() |
| 748 { | |
| 749 int ptcptr=ptr_cache; | |
| 750 while(ptcptr) { | |
| 751 if(car(ptcptr)) | |
| 752 free_register(caddr(ptcptr)); | |
| 753 car(ptcptr)=0; | |
| 754 caddr(ptcptr)=0; | |
| 755 ptcptr=cadr(ptcptr); | |
| 756 } | |
| 757 } | |
| 758 | |
| 759 | |
| 760 int | |
| 109 | 761 get_ptr_cache(NMTBL *nptr) |
| 89 | 762 { |
| 763 int r; | |
| 764 int ptcptr=ptr_cache; | |
| 109 | 765 int g = (int)nptr; |
| 89 | 766 int p,p1; |
| 95 | 767 char *rrn; |
| 89 | 768 |
| 127 | 769 p1 = ptcptr; p = cadr(p1); /* unnecesary, if ptcptr is initialized */ |
| 89 | 770 while(ptcptr) { |
| 771 if(car(ptcptr)==g) return caddr(ptcptr); | |
| 772 p1=p; p=ptcptr; | |
| 773 ptcptr=cadr(ptcptr); | |
| 774 } | |
| 775 cadr(p1)=0; /* remove the last one */ | |
| 776 cadr(p) = ptr_cache; /* connect current queue to the last one */ | |
| 777 ptr_cache = p; /* now the last one is the top */ | |
| 778 if (!caddr(p)) { | |
| 96 | 779 if((r=get_register())) { |
| 780 caddr(p)=r; regs[r]=PTRC_REG; | |
| 127 | 781 } else { |
| 782 error(-1); | |
| 96 | 783 r=creg; /* this can't happen */ |
| 127 | 784 } |
| 102 | 785 car(p)=g; |
| 127 | 786 } else { |
| 787 r = caddr(p); | |
| 89 | 788 } |
| 789 rrn = register_name(r); | |
| 109 | 790 if (nptr->sc==STATIC) { |
| 791 printf("\taddis %s,r31,ha16(_%s-L_%d)\n", | |
| 792 rrn,nptr->nm,code_base); | |
| 793 printf("\tla %s,lo16(_%s-L_%d)(%s)\n", | |
| 794 rrn,nptr->nm,code_base,rrn); | |
| 795 } else { | |
| 796 printf("\taddis %s,r31,ha16(L_%s$non_lazy_ptr-L_%d)\n", | |
| 797 rrn,nptr->nm,code_base); | |
| 798 printf("\tlwz %s,lo16(L_%s$non_lazy_ptr-L_%d)(%s)\n", | |
| 799 rrn,nptr->nm,code_base,rrn); | |
| 800 } | |
| 89 | 801 return r; |
| 802 } | |
| 803 | |
| 168 | 804 static char *cload(int sz) { return sz==1?"lbz":sz==size_of_short?"lhz":"lwz"; } |
| 805 static char *cstore(int sz) { return sz==1?"stb":sz==size_of_short?"sth":"stw"; } | |
| 806 static char *cext(int sz) { return sz==size_of_short?"extsh":"extsb"; } | |
| 807 | |
| 89 | 808 void |
| 92 | 809 code_label(int labelno) |
| 810 { | |
| 811 clear_ptr_cache(); | |
| 102 | 812 printf("L_%d:\n",labelno); |
| 92 | 813 } |
| 814 | |
| 815 void | |
| 107 | 816 code_gvar(int e1,int creg) { |
| 89 | 817 int r; |
| 109 | 818 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 89 | 819 if(r!=creg) |
| 820 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); | |
| 107 | 821 regv[creg]=1; |
| 89 | 822 return; |
| 823 } | |
| 824 | |
| 825 void | |
| 107 | 826 code_rgvar(int e1,int creg) { |
| 147 | 827 if (!is_int_reg(creg)) error(-1); |
| 108 | 828 printf("\tlwz %s,0(%s)\n",register_name(creg), |
| 109 | 829 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 107 | 830 regv[creg]=1; |
| 89 | 831 } |
| 832 | |
| 833 void | |
| 165 | 834 code_crgvar(int e1,int creg,int sign,int sz){ |
| 107 | 835 char *crn = register_name(creg); |
| 168 | 836 printf("\t%s %s,0(%s)\n",cload(sz),crn, |
| 109 | 837 register_name(get_ptr_cache((NMTBL*)cadr(e1)))); |
| 162 | 838 if (sign) |
| 168 | 839 printf("\t%s %s,%s\n",cext(sz),crn,crn); |
| 107 | 840 regv[creg]=1; |
| 89 | 841 } |
| 842 | |
| 165 | 843 |
| 844 | |
| 89 | 845 void |
| 107 | 846 code_register(int e2,int creg) { |
| 90 | 847 if (creg!=e2) |
| 848 printf("\tmr %s,%s\n",register_name(creg),register_name(e2)); | |
| 107 | 849 regv[creg]=1; |
| 89 | 850 } |
| 851 | |
| 852 | |
| 853 void | |
| 95 | 854 code_rlvar(int e2,int reg) { |
| 119 | 855 lvar_intro(e2); |
| 147 | 856 if (!is_int_reg(reg)) error(-1); |
| 119 | 857 printf("\tlwz %s,",register_name(reg)); |
| 858 lvar(e2); | |
| 107 | 859 regv[creg]=1; |
| 89 | 860 } |
| 861 | |
| 862 void | |
| 165 | 863 code_crlvar(int e2,int reg,int sign,int sz) { |
| 119 | 864 lvar_intro(e2); |
| 165 | 865 printf("\t%s %s,",cload(sz),register_name(reg)); |
| 119 | 866 lvar(e2); |
| 162 | 867 if (sign) |
| 165 | 868 printf("\t%s %s,%s\n",cext(sz),register_name(reg),register_name(reg)); |
| 147 | 869 regv[creg]=1; |
| 89 | 870 } |
| 871 | |
| 165 | 872 |
| 873 | |
| 160 | 874 |
| 89 | 875 |
| 876 void | |
| 109 | 877 code_fname(NMTBL *n,int creg) { |
| 89 | 878 int r; |
| 109 | 879 r = get_ptr_cache(n); |
| 89 | 880 if(r!=creg) |
| 95 | 881 printf("\tmr %s,%s\n",register_name(creg),register_name(r)); |
| 107 | 882 regv[creg]=1; |
| 89 | 883 return; |
| 884 } | |
| 885 | |
| 886 | |
| 887 void | |
| 107 | 888 code_const(int e2,int creg) { |
| 89 | 889 char *crn = register_name(creg); |
| 890 if (-32768<e2&&e2<32768) | |
| 891 printf("\tli %s,%d\n",crn,e2); | |
| 892 else { | |
| 893 printf("\tlis %s,ha16(%d)\n",crn,e2); | |
| 894 printf("\taddi %s,%s,lo16(%d)\n",crn,crn,e2); | |
| 895 } | |
| 107 | 896 regv[creg]=1; |
| 89 | 897 } |
| 898 | |
| 899 | |
| 900 void | |
| 107 | 901 code_neg(int creg) { |
| 93 | 902 printf("\tneg %s,%s\n", register_name(creg), register_name(creg)); |
| 89 | 903 } |
| 904 | |
| 905 | |
| 906 void | |
| 107 | 907 code_not(int creg) { |
| 89 | 908 printf("\tnor %s,%s,%s\n", |
| 909 register_name(creg), register_name(creg),register_name(creg)); | |
| 910 } | |
| 911 | |
| 912 | |
| 913 void | |
| 107 | 914 code_lnot(int creg) { |
| 89 | 915 printf("\tsubfic r0,%s,0\n", register_name(creg)); |
| 916 printf("\tadde %s,r0,%s\n", register_name(creg),register_name(creg)); | |
| 917 } | |
| 918 | |
| 919 void | |
| 168 | 920 code_preinc(int e1,int e2,int dir,int sign,int sz,int reg) { |
| 89 | 921 char *xrn,*drn; |
| 922 int i,dreg; | |
| 923 if (car(e2)==REGISTER) { | |
| 95 | 924 printf("\taddi %s,%s,%d\n", |
| 168 | 925 register_name(cadr(e2)),register_name(cadr(e2)), dir); |
| 118 | 926 if (cadr(reg)!=e2) |
| 927 printf("\tmr %s,%s\n",register_name(cadr(reg)),register_name(e2)); | |
| 107 | 928 regv[reg]=1; |
| 89 | 929 return; |
| 930 } | |
| 931 g_expr(e2); | |
| 932 xrn = register_name(creg); | |
| 933 dreg=get_register(); if (!dreg) error(-1); | |
| 934 drn = register_name(dreg); | |
| 168 | 935 printf("\t%s %s,0(%s)\n",cload(sz),drn,xrn); |
| 172 | 936 if (use && sign && sz!=size_of_int) |
| 168 | 937 printf("\t%s %s,%s\n",cext(sz),drn,drn); |
| 938 printf("\taddi %s,%s,%d\n",drn,drn,dir); | |
| 939 printf("\t%s %s,0(%s)\n",cstore(sz),drn,xrn); | |
| 89 | 940 i=creg;creg=dreg;dreg=i; |
| 147 | 941 regv[creg]=1; ireg=creg; |
| 89 | 942 free_register(dreg); |
| 943 } | |
| 944 | |
| 945 | |
| 946 void | |
| 168 | 947 code_postinc(int e1,int e2,int dir,int sign,int sz,int reg) { |
| 89 | 948 char *xrn,*crn,*nrn; |
| 95 | 949 int dreg,nreg,i; |
| 89 | 950 if (car(e2)==REGISTER) { |
| 107 | 951 printf("\tmr %s,%s\n",register_name(reg),register_name(cadr(e2))); |
| 89 | 952 printf("\taddi %s,%s,%d\n", |
| 168 | 953 register_name(cadr(e2)),register_name(cadr(e2)),dir); |
| 107 | 954 regv[reg]=1; |
| 89 | 955 return; |
| 956 } | |
| 957 g_expr(e2); | |
| 958 crn = register_name(creg); | |
| 959 dreg=get_register(); if (!dreg) error(-1); | |
| 960 xrn = register_name(dreg); | |
| 961 nreg=get_register(); if (!nreg) error(-1); | |
| 962 nrn = register_name(nreg); | |
| 168 | 963 printf("\t%s %s,0(%s)\n",cload(sz),xrn,crn); |
| 172 | 964 if (use && sign && sz!=size_of_int) |
| 168 | 965 printf("\t%s %s,%s\n",cext(sz),xrn,xrn); |
| 966 printf("\taddi %s,%s,%d\n",nrn,xrn,dir); | |
| 967 printf("\t%s %s,0(%s)\n",cstore(sz),nrn,crn); | |
| 968 i=creg;creg=dreg;dreg=i; | |
| 89 | 969 free_register(nreg); |
| 970 free_register(dreg); | |
| 147 | 971 regv[creg]=1; ireg=creg; |
| 89 | 972 } |
| 973 | |
| 974 | |
| 975 void | |
| 107 | 976 code_return(int creg) { |
| 95 | 977 char *crn = register_name(creg); |
| 102 | 978 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,retcont,code_base); |
| 979 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,retcont,code_base,crn); | |
| 89 | 980 } |
| 981 | |
| 128 | 982 #define R1SAVE 1 |
| 89 | 983 |
| 984 void | |
| 107 | 985 code_environment(int creg) { |
| 126 | 986 /* save frame pointer */ |
| 128 | 987 #if R1SAVE |
| 988 printf("\tlwz %s,0(r1)\n",register_name(creg)); | |
| 989 #else | |
| 990 int l = 0; | |
| 991 printf("\tla %s,",register_name(creg)); | |
| 992 printf("lo16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 993 #endif | |
| 89 | 994 } |
| 995 | |
| 996 void | |
| 116 | 997 code_bool(int e1) { |
| 89 | 998 char *xrn; |
| 999 int e2,e3; | |
| 1000 b_expr(e1,1,e2=fwdlabel(),1); /* including > < ... */ | |
| 147 | 1001 creg = use_int(creg); |
| 89 | 1002 xrn = register_name(creg); |
| 1003 printf("\tli %s,0\n",xrn); | |
| 1004 jmp(e3=fwdlabel()); | |
| 1005 fwddef(e2); | |
| 1006 printf("\tli %s,1\n",xrn); | |
| 1007 fwddef(e3); | |
| 1008 } | |
| 1009 | |
| 1010 char * | |
| 1011 code_gt(int cond) { | |
| 113 | 1012 return (cond?"gt":"le"); |
| 89 | 1013 } |
| 1014 | |
| 1015 char * | |
| 1016 code_ugt(int cond) { | |
| 113 | 1017 return (cond?"gt":"le"); |
| 89 | 1018 } |
| 1019 | |
| 1020 char * | |
| 1021 code_ge(int cond) { | |
| 113 | 1022 return (cond?"ge":"lt"); |
| 89 | 1023 } |
| 1024 | |
| 1025 char * | |
| 1026 code_uge(int cond) { | |
| 113 | 1027 return (cond?"ge":"lt"); |
| 89 | 1028 } |
| 1029 | |
| 1030 char * | |
| 1031 code_eq(int cond) { | |
| 113 | 1032 return (cond?"eq":"ne"); |
| 89 | 1033 } |
| 1034 | |
| 1035 void | |
| 167 | 1036 code_cmp_crgvar(int e1,int sz) { |
| 89 | 1037 int r; |
| 1038 char *crn = register_name(creg); | |
| 109 | 1039 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 167 | 1040 printf("\t%s %s,0(%s)\n",cload(sz),crn,register_name(r)); |
| 89 | 1041 printf("\tcmpwi cr0,%s,0\n",crn); |
| 107 | 1042 regv[creg]=0; |
| 89 | 1043 } |
| 1044 | |
| 1045 | |
| 1046 void | |
| 167 | 1047 code_cmp_crlvar(int e2,int sz) { |
| 89 | 1048 char *crn = register_name(creg); |
| 119 | 1049 lvar_intro(e2); |
| 167 | 1050 printf("\t%s %s,",cload(sz),crn); |
| 160 | 1051 lvar(e2); |
| 1052 code_cmp_register(creg); | |
| 1053 regv[creg]=0; | |
| 1054 } | |
| 1055 | |
| 89 | 1056 |
| 1057 void | |
| 1058 code_cmp_rgvar(int e1) { | |
| 1059 int r; | |
| 1060 char *crn = register_name(creg); | |
| 147 | 1061 if (!is_int_reg(creg)) error(-1); |
| 109 | 1062 r = get_ptr_cache((NMTBL*)cadr(e1)); |
| 108 | 1063 printf("\tlwz %s,0(%s)\n",crn,register_name(r)); |
| 89 | 1064 code_cmp_register(creg); |
| 107 | 1065 regv[creg]=0; |
| 89 | 1066 } |
| 1067 | |
| 1068 | |
| 1069 void | |
| 119 | 1070 code_cmp_rlvar(int e2) { |
| 89 | 1071 char *crn = register_name(creg); |
| 119 | 1072 lvar_intro(e2); |
| 1073 printf("\tlwz %s,",crn); | |
| 1074 lvar(e2); | |
| 89 | 1075 code_cmp_register(creg); |
| 107 | 1076 regv[creg]=0; |
| 89 | 1077 } |
| 1078 | |
| 1079 | |
| 1080 void | |
| 1081 code_cmp_register(int e2) { | |
| 1082 printf("\tcmpwi cr0,%s,0\n",register_name(e2)); | |
| 1083 } | |
| 1084 | |
| 1085 | |
| 1086 void | |
| 1087 ascii(char *s) | |
| 1088 { | |
| 1089 printf("\t.ascii \""); | |
| 1090 while(*s) { | |
| 1091 if (*s=='\n') | |
| 1092 printf("%cn",92); | |
| 1093 else if (*s<' ') | |
| 1094 printf("%c%03o",92,*s); | |
| 116 | 1095 else if (*s=='\\') |
| 1096 printf("\\\\"); | |
| 89 | 1097 else if (*s==34) |
| 1098 printf("%c%c",92,34); | |
| 1099 else | |
| 1100 printf("%c",*s); | |
| 1101 s++; | |
| 1102 } | |
| 108 | 1103 printf("\\0%c\n\t.align 2\n",34); |
| 89 | 1104 } |
| 1105 | |
| 1106 void | |
| 107 | 1107 code_string(int e1,int creg) |
| 89 | 1108 { |
| 95 | 1109 char *s,*crn; |
| 1110 int lb; | |
| 1111 crn=register_name(creg); | |
| 89 | 1112 |
| 1113 s=(char *)cadr(e1); | |
| 109 | 1114 printf(".data\t\n.cstring\n\t.align 2\n"); |
| 89 | 1115 lb=fwdlabel(); |
| 102 | 1116 printf("L_%d:\n",lb); |
| 89 | 1117 ascii(s); |
| 1118 if (output_mode==TEXT_EMIT_MODE) { | |
| 1119 printf(".text\n"); | |
| 1120 } else { | |
| 1121 text_mode(); | |
| 1122 } | |
| 102 | 1123 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",crn,lb,code_base); |
| 1124 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",crn,lb,code_base,crn); | |
| 89 | 1125 } |
| 1126 | |
| 1127 #define MAX_COPY_LEN 20 | |
| 1128 | |
| 1129 void | |
| 1130 emit_copy(int from,int to,int length,int offset,int value,int det) | |
| 1131 { | |
| 1132 char *frn = register_name(from); | |
| 1133 char *trn = register_name(to); | |
| 1134 char *drn; | |
| 1135 int fix = 0; | |
| 125 | 1136 char *memmove = "memmove"; |
| 95 | 1137 int dreg = get_register(); if (!dreg) error(-1); |
| 89 | 1138 drn = register_name(dreg); |
| 1139 | |
| 1140 /* length <0 means upward direction copy */ | |
| 1141 switch (length) { | |
| 1142 case 0: break; | |
| 1143 case 1: case -1: | |
| 1144 printf("\tlbz %s,%d(%s)\n",drn,offset,frn); | |
| 1145 printf("\tstb %s,%d(%s)\n",drn,offset,trn); | |
| 1146 break; | |
| 1147 case 2: case -2: | |
| 1148 printf("\tlhz %s,%d(%s)\n",drn,offset,frn); | |
| 1149 printf("\tsth %s,%d(%s)\n",drn,offset,trn); | |
| 1150 break; | |
| 1151 case 4: case -4: | |
| 1152 printf("\tlwz %s,%d(%s)\n",drn,offset,frn); | |
| 1153 printf("\tstw %s,%d(%s)\n",drn,offset,trn); | |
| 1154 break; | |
| 1155 default: | |
| 1156 if (-MAX_COPY_LEN<length && length <0) { | |
| 1157 for(;length<=4;length+=4,offset-=4) | |
| 1158 emit_copy(from,to,4,offset,0,det); | |
| 1159 for(;length<=2;length+=2,offset-=2) | |
| 1160 emit_copy(from,to,2,offset,0,det); | |
| 1161 if(length>0) | |
| 1162 emit_copy(from,to,length,offset,0,det); | |
| 1163 break; | |
| 1164 } else if (length <=MAX_COPY_LEN) { | |
| 1165 for(;length>=4;length-=4,offset+=4) | |
| 1166 emit_copy(from,to,4,offset,0,det); | |
| 1167 for(;length>=2;length-=2,offset+=2) | |
| 1168 emit_copy(from,to,2,offset,0,det); | |
| 1169 if(length>0) | |
| 1170 emit_copy(from,to,length,offset,0,det); | |
| 1171 break; | |
| 1172 } | |
| 125 | 1173 clear_ptr_cache(); |
| 1174 code_save_stacks(); | |
| 1175 printf("\tli r5,%d\n",length); | |
| 1176 printf("\tmr r4,%s\n",frn); | |
| 1177 printf("\tmr r3,%s\n",trn); | |
| 1178 /* overrap must be allowed */ | |
| 1179 printf("\tbl L_%s$stub\n",memmove); | |
| 1180 extern_define(memmove,0,FUNCTION,1); | |
| 1181 fix=0; | |
| 1182 set_creg(RET_REGISTER,0); | |
| 1183 if (creg!=to) { | |
| 1184 free_register(to); to = creg; | |
| 89 | 1185 } |
| 125 | 1186 break; |
| 89 | 1187 } |
| 1188 if (value) { | |
| 1189 /* creg must point top of the destination data */ | |
| 1190 /* this code is necessary for the value of assignment or function call */ | |
| 1191 /* otherwise we don't need this */ | |
| 1192 if (fix) printf("\taddi %s,%s,%d\n",trn,trn,fix); | |
| 1193 if(creg!=to) { | |
| 1194 free_register(creg); creg=to; | |
| 1195 } | |
| 1196 } | |
| 1197 free_register(dreg); | |
| 1198 regv[from]=regv[to]=regv[dreg]=0; | |
| 1199 regv[creg]=1; | |
| 1200 } | |
| 1201 | |
| 1202 int | |
| 119 | 1203 struct_push(int e4,int t,int arg) |
| 89 | 1204 { |
| 95 | 1205 int length,count; |
| 119 | 1206 int dreg,sreg; char *drn,*crn,*srn; |
| 89 | 1207 g_expr(e4); |
| 1208 length=size(t); | |
| 1209 if(length%size_of_int) { | |
| 1210 length += size_of_int - (length%size_of_int); | |
| 1211 } | |
| 95 | 1212 dreg = get_register(); if (!dreg) error(-1); |
| 89 | 1213 drn = register_name(dreg); |
| 119 | 1214 crn = register_name(creg); |
| 125 | 1215 if (length<MAX_COPY_LEN) { |
| 1216 sreg = get_register(); if (!sreg) error(-1); | |
| 1217 srn = register_name(sreg); | |
| 1218 code_lvar(cadr(arg),sreg); | |
| 1219 for(count=0;length<MAX_COPY_LEN;count++,length-=size_of_int) { | |
| 1220 if (length==0) { | |
| 1221 free_register(sreg); | |
| 1222 free_register(dreg); | |
| 1223 return count; | |
| 1224 } else { | |
| 1225 printf("\tlwz %s,%d(%s)\n",drn,length-size_of_int,crn); | |
| 1226 printf("\tstwu %s,%d(%s)\n",drn,-size_of_int,srn); | |
| 1227 } | |
| 89 | 1228 } |
| 1229 } | |
| 125 | 1230 code_lvar(cadr(arg),dreg); |
| 89 | 1231 /* downward direction copy */ |
| 1232 emit_copy(creg,dreg,length,0,0,1); | |
| 119 | 1233 if (dreg) free_register(dreg); |
| 89 | 1234 return length/size_of_int; |
| 1235 } | |
| 1236 | |
| 104 | 1237 void |
| 1238 set_creg(int reg,int mode) | |
| 1239 { | |
| 1240 if (reg!=creg) { | |
| 111 | 1241 clear_ptr_cache_reg(reg); |
| 147 | 1242 if (reg!=ireg && mode) |
| 1243 printf("\tmr %s,%s\n",register_name(reg),register_name(ireg)); | |
| 104 | 1244 free_register(creg); |
| 147 | 1245 creg = ireg = reg; |
| 104 | 1246 regs[creg]=1; |
| 1247 } | |
| 1248 } | |
| 1249 | |
| 1250 void | |
| 1251 set_freg(int reg,int mode) | |
| 1252 { | |
| 147 | 1253 if (reg!=creg) { |
| 1254 if (reg!=freg && mode) { | |
| 104 | 1255 printf("\tfmr %s,%s\n",fregister_name(reg),fregister_name(freg)); |
| 147 | 1256 } |
| 1257 free_register(creg); | |
| 1258 creg = freg = reg; | |
| 145 | 1259 regs[freg]=1; |
| 104 | 1260 } |
| 1261 } | |
| 1262 | |
| 1263 void | |
| 1264 use_var(int arg) | |
| 1265 { | |
| 1266 if (car(arg)==REGISTER) | |
| 116 | 1267 regs[cadr(arg)]=USING_REG; |
| 104 | 1268 else if (car(arg)==DREGISTER) |
| 145 | 1269 regs[cadr(arg)]=USING_REG; |
| 104 | 1270 } |
| 1271 | |
| 105 | 1272 void |
| 1273 code_save_input_registers() | |
| 1274 { | |
| 119 | 1275 int args; |
| 1276 NMTBL *n; | |
| 1277 int reg; | |
| 1278 int tag; | |
| 1279 int lvar; | |
| 1280 int t; | |
| 1281 /* fnptr->dsp=list4(type,fnptr->dsp,(int)n,0); */ | |
| 1282 int reg_offset = 0; | |
| 1283 int offset = 0; | |
| 1284 | |
| 1285 for(args = fnptr->dsp;args;args = cadr(args)) { | |
| 1286 n = (NMTBL *)caddr(args); | |
| 1287 tag = n->sc; | |
| 1288 reg = n->dsp; | |
| 1289 if (!n||n==&null_nptr) error(REG_ERR); | |
| 1290 if (tag==REGISTER) { | |
| 1291 /* regs[reg]==INPUT_REG case should be considered */ | |
| 1292 n->dsp = offset; | |
| 1293 offset+=size_of_int; | |
| 1294 t = INT; | |
| 1295 reg += reg_offset; /* for duplicated floating point argument */ | |
| 1296 } else if (tag==DREGISTER) { | |
| 145 | 1297 /* regs[reg]==INPUT_REG case should be considered */ |
| 119 | 1298 n->dsp = offset; |
| 120 | 1299 t = n->ty; |
| 121 | 1300 if(t==FLOAT) { offset+=size_of_float; reg_offset+=1; } |
| 1301 else if(t==DOUBLE) { offset+=size_of_double; reg_offset+=2; } | |
| 120 | 1302 else error(-1); |
| 122 | 1303 } else { |
| 1304 offset += size(n->ty); | |
| 119 | 1305 continue; |
| 122 | 1306 } |
| 119 | 1307 n->sc = LVAR; |
| 1308 lvar = list2(LVAR,n->dsp); | |
| 1309 g_expr_u(assign_expr0(list2(LVAR,n->dsp),list3(tag,reg,(int)n),n->ty,t)); | |
| 147 | 1310 if (tag==REGISTER||tag==DREGISTER||tag==FREGISTER) { |
| 119 | 1311 free_register(reg); |
| 1312 } | |
| 1313 } | |
| 121 | 1314 my_func_args = offset; |
| 105 | 1315 } |
| 1316 | |
| 95 | 1317 int |
| 108 | 1318 simple_args(int e3) |
| 1319 { | |
| 1320 return | |
| 1321 !contains_in_list(e3,FUNCTION) && | |
| 1322 !contains_in_list(e3,CONV) && | |
| 125 | 1323 !contains_in_list(e3,RSTRUCT) && |
| 164 | 1324 !contains_in_list(e3,STASS) |
| 108 | 1325 ; |
| 1326 } | |
| 1327 | |
| 119 | 1328 int |
| 1329 caller_arg_offset_v(int arg) | |
| 1330 { | |
| 1331 return ARG_LVAR_OFFSET+arg*size_of_int; | |
| 1332 } | |
| 111 | 1333 |
| 108 | 1334 int |
| 89 | 1335 function(int e1) |
| 1336 { | |
| 119 | 1337 int e2,e3,e4,e5,nargs,t,r0,r1; |
| 104 | 1338 int arg,reg_arg,freg_arg,arg_assign; |
|
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1339 int dots; |
| 111 | 1340 int reg_arg_list=0,ret_type,special_lvar; |
| 127 | 1341 NMTBL *fn = 0; |
| 108 | 1342 int jmp = 0; |
| 1343 char *jrn; | |
| 95 | 1344 |
| 111 | 1345 special_lvar = -1; |
|
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1346 ret_type = cadr(cadddr(e1)); |
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1347 if (ret_type==CHAR) ret_type=INT; |
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1348 |
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1349 /* check argments type is DOTS? */ |
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1350 t = caddr(cadddr(e1)); |
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1351 if (t==0 || t==DOTS) dots = 1; |
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1352 else { |
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1353 dots = 0; |
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1354 for(t = caddr(cadddr(e1));t;t = cadr(t)) { |
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1355 if (car(t)==DOTS) dots = 1; |
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1356 } |
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1357 } |
| 108 | 1358 |
| 1359 e2 = cadr(e1); | |
| 1360 if (car(e2) == FNAME) { | |
| 1361 fn=(NMTBL *)cadr(e2); | |
| 1362 } else { | |
| 1363 jmp = get_register_var(0); | |
| 1364 if (car(jmp)!=REGISTER) error(-1); | |
| 1365 reg_arg_list = list2(jmp,reg_arg_list); | |
| 116 | 1366 g_expr(e2); |
| 1367 code_register(creg,cadr(jmp)); | |
| 1368 /* g_expr(assign_expr0(jmp,e2,INT,INT)); functions are lvalue */ | |
| 108 | 1369 } |
| 1370 | |
| 99 | 1371 /* now all input register vars are free */ |
| 108 | 1372 code_save_stacks(); |
| 107 | 1373 set_creg(CREG_REGISTER,0); |
| 1374 set_freg(FREG_FREGISTER,0); | |
| 108 | 1375 |
| 1376 nargs = reg_arg = freg_arg = arg_assign = 0; | |
| 105 | 1377 for (e3 = reverse0(caddr(e1)); e3; e3 = cadr(e3)) { |
| 89 | 1378 t=caddr(e3); |
| 111 | 1379 e4 = car(e3); |
| 89 | 1380 if(scalar(t)) { |
| 122 | 1381 if (reg_arg>=MAX_INPUT_REGISTER_VAR) { |
| 119 | 1382 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 116 | 1383 } else if (!simple_args(e3) && cadr(e3)) { |
| 105 | 1384 arg = get_register_var(0); |
| 104 | 1385 arg_assign = list2( |
| 137 | 1386 assign_expr0(get_input_register_var(reg_arg,0,0), |
| 1387 arg,t,t), | |
| 104 | 1388 arg_assign); |
| 96 | 1389 } else { |
| 126 | 1390 arg = get_input_register_var(reg_arg,0,0); |
| 89 | 1391 } |
| 107 | 1392 use_var(arg); /* protect from input register free */ |
| 99 | 1393 reg_arg_list = list2(arg,reg_arg_list); |
| 1394 g_expr_u(assign_expr0(arg,e4,t,t)); | |
| 89 | 1395 nargs ++ ; reg_arg++; |
| 99 | 1396 continue; |
| 89 | 1397 } else if (t==DOUBLE||t==FLOAT) { |
| 137 | 1398 if (reg_arg<MAX_INPUT_REGISTER_VAR) { |
| 119 | 1399 /* sigh... |
| 1400 printf requies floating value in integer registers | |
| 1401 */ | |
| 137 | 1402 if (dots) { |
| 1403 if (car(e4)==DRLVAR) { | |
| 1404 special_lvar = cadr(e4); | |
| 1405 e5 = list2(LVAR,special_lvar); | |
| 1406 } else { | |
| 1407 special_lvar = new_lvar(size_of_double); | |
| 1408 g_expr(assign_expr0( | |
| 1409 (e5=list2(LVAR,special_lvar)),e4,DOUBLE,t)); | |
| 1410 reg_arg_list = list2(e5,reg_arg_list); | |
| 1411 e4 = list2(DREGISTER,freg); | |
| 1412 /* freg should not change until XXX */ | |
| 1413 } | |
| 1414 r0=get_input_register_var(reg_arg,0,0); | |
| 1415 r1 = reg_arg+1+MIN_TMP_REG; | |
| 1416 if (regs[r1]==PTRC_REG) clear_ptr_cache_reg(r1); | |
| 1417 /* else if (regs[r1]) error(-1); */ | |
| 1418 r1=get_input_register_var_1(reg_arg+1,0,0); | |
| 1419 | |
| 1420 use_var(r0); /* protect from input register free */ | |
| 1421 use_var(r1); /* protect from input register free */ | |
| 1422 reg_arg_list = list2(r0,reg_arg_list); | |
| 1423 reg_arg_list = list2(r1,reg_arg_list); | |
| 1424 arg_assign = list2( assign_expr0(r0,e5,INT,INT), arg_assign); | |
| 1425 arg_assign = list2( assign_expr0(r1, | |
| 1426 list2(LVAR,special_lvar+size_of_int), | |
| 1427 INT,INT), arg_assign); | |
| 111 | 1428 } |
| 1429 reg_arg += 2; | |
| 1430 } | |
|
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|
1431 if (dots && freg_arg>=4 && freg_arg<MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1432 /* oh my god! |
| 1433 it requies integer register and floating register and | |
| 1434 stack value. You are crazy. | |
| 1435 */ | |
| 1436 arg_assign = list2( | |
| 1437 assign_expr0(list2(LVAR,caller_arg_offset_v(nargs)), | |
| 138 | 1438 get_input_dregister_var(freg_arg,0,0,1),t,t), |
| 119 | 1439 arg_assign); |
| 1440 } | |
| 122 | 1441 if (freg_arg>=MAX_INPUT_DREGISTER_VAR) { |
| 119 | 1442 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 137 | 1443 } else if (!simple_args(e3) && cadr(e3)) { |
| 138 | 1444 arg = get_dregister_var(0,1); |
| 104 | 1445 arg_assign = list2( |
| 138 | 1446 assign_expr0(get_input_dregister_var(freg_arg,0,0,1), |
| 137 | 1447 arg,t,t), |
| 104 | 1448 arg_assign); |
| 99 | 1449 } else { |
| 138 | 1450 arg = get_input_dregister_var(freg_arg,0,0,1); |
| 99 | 1451 } |
| 107 | 1452 use_var(arg); /* protect from input register free */ |
| 99 | 1453 reg_arg_list = list2(arg,reg_arg_list); |
| 118 | 1454 g_expr_u(assign_expr0(arg,e4,t,t)); /* XXX */ |
| 99 | 1455 freg_arg++; |
| 122 | 1456 nargs += size(t)/size_of_int; |
| 89 | 1457 continue; |
| 1458 } else if (car(t)==STRUCT||car(t)==UNION) { | |
| 119 | 1459 arg = list2(LVAR,caller_arg_offset_v(nargs)); |
| 1460 nargs += struct_push(e4,t,arg); | |
| 89 | 1461 continue; |
| 1462 } else { | |
| 1463 error(TYERR); | |
| 1464 } | |
| 1465 ++nargs; | |
| 1466 } | |
| 116 | 1467 if (max_func_args<nargs) max_func_args=nargs; |
| 104 | 1468 for(;arg_assign;arg_assign=cadr(arg_assign)) { |
| 1469 g_expr_u(car(arg_assign)); | |
| 1470 } | |
| 96 | 1471 clear_ptr_cache(); |
| 89 | 1472 if (car(e2) == FNAME) { |
| 108 | 1473 printf("\tbl\tL_%s$stub\n",fn->nm); |
| 89 | 1474 } else { |
| 108 | 1475 jrn = register_name(cadr(jmp)); |
| 89 | 1476 printf("\tmtctr %s\n",jrn); |
| 1477 printf("\tbctrl\n"); | |
| 1478 } | |
| 99 | 1479 for(;reg_arg_list;reg_arg_list=cadr(reg_arg_list)) { |
| 108 | 1480 arg = car(reg_arg_list); |
| 147 | 1481 if (car(arg)==REGISTER||car(arg)==DREGISTER||car(arg)==FREGISTER) |
| 1482 free_register(cadr(arg)); | |
| 119 | 1483 else if (car(arg)==LVAR&&cadr(arg)<0) free_lvar(cadr(arg)); |
| 99 | 1484 } |
| 105 | 1485 if (ret_type==DOUBLE||ret_type==FLOAT) { |
| 104 | 1486 set_freg(RET_FREGISTER,0); |
| 145 | 1487 regv[freg]=1; regv[creg]=0; |
| 105 | 1488 } else if (ret_type==VOID) { |
| 145 | 1489 regv[freg]=0; regv[creg]=0; |
| 96 | 1490 } else { |
| 104 | 1491 set_creg(RET_REGISTER,0); |
| 145 | 1492 regv[freg]=0; regv[creg]=1; |
| 96 | 1493 } |
| 105 | 1494 return ret_type; |
| 89 | 1495 } |
| 1496 | |
| 1497 void | |
| 1498 code_frame_pointer(int e3) { | |
| 128 | 1499 #if R1SAVE |
| 1500 printf("\tmr r1,%s\n",register_name(e3)); | |
| 1501 #else | |
| 126 | 1502 printf("\tmr r30,%s\n",register_name(e3)); |
| 128 | 1503 #endif |
| 89 | 1504 } |
| 1505 | |
| 1506 | |
| 1507 void | |
| 1508 code_fix_frame_pointer(int disp_offset) { | |
| 128 | 1509 int l = 0; |
| 1510 printf("\tla r30,"); | |
| 1511 printf("lo16(%d+L_%d)(r30)\n",FUNC_LVAR,lvar_offset_label); | |
| 89 | 1512 } |
| 1513 | |
| 1514 void | |
| 1515 code_jmp(char *s) { | |
| 128 | 1516 max_reg_var = REG_VAR_BASE-REG_VAR_MIN; |
| 1517 max_freg_var = FREG_VAR_BASE-FREG_VAR_MIN; | |
| 89 | 1518 printf("\tb L_%s$stub\n",s); |
| 1519 } | |
| 1520 | |
| 1521 | |
| 1522 void | |
| 1523 code_indirect_jmp(int e2) { | |
| 128 | 1524 max_reg_var = REG_VAR_BASE-REG_VAR_MIN; |
| 1525 max_freg_var = FREG_VAR_BASE-FREG_VAR_MIN; | |
| 89 | 1526 printf("\tmtctr %s\n",register_name(e2)); |
| 1527 printf("\tbctr\n"); | |
| 1528 } | |
| 1529 | |
| 95 | 1530 int |
| 89 | 1531 rindirect(int e1) /* *(p +5 ) */ |
| 1532 { | |
| 95 | 1533 char *crn; |
| 119 | 1534 int e2,e3,e4,offset; |
| 1535 | |
| 1536 offset=0; | |
| 89 | 1537 e3 = cadr(e2 = cadr(e1)); |
| 119 | 1538 if (car(e2)==ADD) { |
| 1539 e4=caddr(e2); | |
| 1540 if (car(e4)==CONST) { | |
| 1541 offset=cadr(e4); | |
| 1542 e2=e3; | |
| 1543 } | |
| 1544 } | |
| 89 | 1545 g_expr(e2); |
| 90 | 1546 crn=register_name(creg); |
| 89 | 1547 switch (car(e1)) { |
| 1548 case FRINDIRECT: case DRINDIRECT: | |
| 119 | 1549 printf("\t%s %s,%d(%s)\n",fload(car(e1)==DRINDIRECT), |
| 1550 fregister_name(freg),offset,crn); | |
| 90 | 1551 regv[creg]=0; regv[freg]=1; |
| 147 | 1552 creg = freg; |
| 95 | 1553 return DOUBLE; |
| 90 | 1554 case CRINDIRECT: |
| 119 | 1555 printf("\tlbz %s,%d(%s)\n",crn,offset,crn); |
| 90 | 1556 printf("\textsb %s,%s\n",crn,crn); |
| 95 | 1557 return CHAR; |
| 162 | 1558 case CURINDIRECT: |
| 1559 printf("\tlbz %s,%d(%s)\n",crn,offset,crn); | |
| 1560 return UCHAR; | |
| 165 | 1561 case SRINDIRECT: |
| 1562 printf("\tlhz %s,%d(%s)\n",crn,offset,crn); | |
| 1563 printf("\textsh %s,%s\n",crn,crn); | |
| 1564 return SHORT; | |
| 1565 case SURINDIRECT: | |
| 1566 printf("\tlhz %s,%d(%s)\n",crn,offset,crn); | |
| 1567 return USHORT; | |
| 90 | 1568 case RINDIRECT: |
| 119 | 1569 printf("\tlwz %s,%d(%s)\n",crn,offset,crn); |
| 95 | 1570 return INT; |
| 89 | 1571 } |
| 95 | 1572 error(-1); return INT; |
| 89 | 1573 } |
| 1574 | |
| 1575 void | |
| 103 | 1576 code_assign_gvar(int e2,int creg,int byte) { |
| 90 | 1577 int r; |
| 1578 char *crn,*rrn; | |
| 109 | 1579 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 90 | 1580 rrn=register_name(r); |
| 1581 crn=register_name(creg); | |
| 165 | 1582 if (byte==1) { |
| 108 | 1583 printf("\tstb %s,0(%s)\n",crn,rrn); |
| 165 | 1584 } else if (byte==size_of_short) { |
| 1585 printf("\tsth %s,0(%s)\n",crn,rrn); | |
| 90 | 1586 } else { |
| 108 | 1587 printf("\tstw %s,0(%s)\n",crn,rrn); |
| 90 | 1588 } |
| 89 | 1589 } |
| 1590 | |
| 1591 void | |
| 103 | 1592 code_assign_lvar(int e2,int creg,int byte) { |
| 90 | 1593 char *crn; |
| 1594 crn=register_name(creg); | |
| 119 | 1595 lvar_intro(e2); |
| 165 | 1596 if (byte==1) { |
| 1597 printf("\tstb %s,",crn); | |
| 1598 } else if (byte==size_of_short) { | |
| 1599 printf("\tsth %s,",crn); | |
| 90 | 1600 } else { |
| 165 | 1601 printf("\tstw %s,",crn); |
| 90 | 1602 } |
| 165 | 1603 lvar(e2); |
| 89 | 1604 } |
| 1605 | |
| 1606 void | |
| 111 | 1607 code_assign_register(int e2,int byte,int creg) { |
| 104 | 1608 if (e2!=creg) |
| 1609 printf("\tmr %s,%s\n",register_name(e2),register_name(creg)); | |
| 89 | 1610 } |
| 1611 | |
| 1612 void | |
| 118 | 1613 code_assign(int e2,int byte,int creg) { |
| 95 | 1614 char *drn=register_name(e2); |
| 1615 char *crn=register_name(creg); | |
| 1616 | |
| 165 | 1617 if (byte==1) { |
| 108 | 1618 printf("\tstb %s,0(%s)\n",crn,drn); |
| 165 | 1619 } else if (byte==size_of_short) { |
| 1620 printf("\tsth %s,0(%s)\n",crn,drn); | |
| 90 | 1621 } else { |
| 108 | 1622 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1623 } |
| 144 | 1624 regv[creg]=1; |
| 89 | 1625 } |
| 1626 | |
| 1627 | |
| 1628 void | |
| 1629 code_register_assop(int e2,int op,int byte) { | |
| 1630 int reg; | |
| 1631 int xreg = creg; | |
| 1632 creg = reg = e2; | |
| 1633 tosop(op,xreg); | |
| 1634 creg = xreg; | |
| 104 | 1635 if (creg!=reg) |
| 1636 printf("\tmr %s,%s\n",register_name(creg),register_name(reg)); | |
| 144 | 1637 regv[creg]=1; |
| 89 | 1638 } |
| 1639 | |
| 1640 | |
| 1641 void | |
| 162 | 1642 code_assop(int op,int byte,int sign) { |
| 90 | 1643 char *xrn,*crn,*drn; |
| 89 | 1644 int xreg; |
| 90 | 1645 int edx = get_register(); if(!edx) error(-1); |
| 93 | 1646 xrn = register_name(xreg = emit_pop(0)); /* pop e3 value */ |
| 89 | 1647 regv[xreg]=regs[xreg]=1; |
| 113 | 1648 printf("# assop\n\tmr %s,%s\n",register_name(edx),register_name(creg)); |
| 89 | 1649 regv[edx]=1; |
| 162 | 1650 ld_indexx(byte,0,edx,sign); |
| 89 | 1651 tosop(op,xreg); |
| 90 | 1652 crn = register_name(creg); |
| 1653 drn = register_name(edx); | |
| 165 | 1654 if (byte==1) { |
| 108 | 1655 printf("\tstb %s,0(%s)\n",crn,drn); |
| 165 | 1656 } else if (byte==size_of_short) { |
| 1657 printf("\tsth %s,0(%s)\n",crn,drn); | |
| 90 | 1658 } else { |
| 108 | 1659 printf("\tstw %s,0(%s)\n",crn,drn); |
| 90 | 1660 } |
| 1661 free_register(edx); | |
| 89 | 1662 emit_pop_free(xreg); |
| 144 | 1663 regv[creg]=1; |
| 89 | 1664 } |
| 1665 | |
| 1666 | |
| 1667 void | |
| 1668 tosop(int op,int oreg) | |
| 1669 { | |
| 1670 int dx; | |
| 95 | 1671 char *orn,*crn,*drn; |
| 89 | 1672 |
| 103 | 1673 if(oreg==-1) { |
| 1674 error(-1); | |
| 1675 } else if (oreg<= -REG_LVAR_OFFSET) { | |
| 104 | 1676 dx = get_register(); if (dx<0) error(-1); |
| 119 | 1677 code_rlvar(oreg+REG_LVAR_OFFSET,dx); |
| 104 | 1678 oreg = dx; |
| 103 | 1679 regv[oreg]=1; |
| 1680 } | |
| 1681 | |
| 89 | 1682 switch(op) { |
| 1683 case LSHIFT: | |
| 1684 case ULSHIFT: | |
| 90 | 1685 shift("slw",oreg); |
| 144 | 1686 regv[creg]=1; |
| 89 | 1687 return; |
| 1688 case RSHIFT: | |
| 186 | 1689 shift("sraw",oreg); |
| 144 | 1690 regv[creg]=1; |
| 89 | 1691 return; |
| 1692 case URSHIFT: | |
| 186 | 1693 shift("srw",oreg); |
| 144 | 1694 regv[creg]=1; |
| 89 | 1695 return; |
| 1696 } | |
| 93 | 1697 orn = register_name(oreg); |
| 89 | 1698 crn = register_name(creg); |
| 1699 switch(op) { | |
| 1700 case ADD: | |
| 114 | 1701 printf("\tadd %s,%s,%s\n",crn,crn,orn); |
| 89 | 1702 break; |
| 1703 case SUB: | |
| 114 | 1704 printf("\tsub %s,%s,%s\n",crn,crn,orn); |
| 89 | 1705 break; |
| 112 | 1706 case CMP: |
| 113 | 1707 printf("\tcmpw cr0,%s,%s\n",crn,orn); |
| 112 | 1708 break; |
| 89 | 1709 case BAND: |
| 114 | 1710 printf("\tand %s,%s,%s\n",crn,crn,orn); |
| 89 | 1711 break; |
| 1712 case EOR: | |
| 114 | 1713 printf("\txor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1714 break; |
| 1715 case BOR: | |
| 114 | 1716 printf("\tor %s,%s,%s\n",crn,crn,orn); |
| 89 | 1717 break; |
| 1718 case MUL: | |
| 116 | 1719 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 1720 break; | |
| 89 | 1721 case UMUL: |
| 114 | 1722 printf("\tmullw %s,%s,%s\n",crn,crn,orn); |
| 89 | 1723 break; |
| 1724 case DIV: | |
| 114 | 1725 printf("\tdivw %s,%s,%s\n",crn,crn,orn); |
| 90 | 1726 break; |
| 89 | 1727 case UDIV: |
| 114 | 1728 printf("\tdivwu %s,%s,%s\n",crn,crn,orn); |
| 89 | 1729 break; |
| 1730 case MOD: | |
| 90 | 1731 dx=get_register(); |
| 95 | 1732 drn = register_name(dx); |
| 116 | 1733 printf("\tdivw %s,%s,%s\n",drn,crn,orn); |
| 1734 printf("\tmullw %s,%s,%s\n",drn,drn,orn); | |
| 1735 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1736 free_register(dx); |
| 90 | 1737 break; |
| 89 | 1738 case UMOD: |
| 90 | 1739 dx=get_register(); |
| 95 | 1740 drn = register_name(dx); |
| 114 | 1741 printf("\tdivwu %s,%s,%s\n",drn,crn,orn); |
| 116 | 1742 printf("\tmullw %s,%s,%s\n",drn,drn,orn); |
| 1743 printf("\tsubf %s,%s,%s\n",crn,drn,crn); | |
| 114 | 1744 free_register(dx); |
| 89 | 1745 break; |
| 112 | 1746 default: |
| 1747 error(-1); | |
| 89 | 1748 } |
| 95 | 1749 if(oreg!=creg) free_register(oreg); |
| 144 | 1750 regv[creg]=1; |
| 89 | 1751 } |
| 1752 | |
| 189 | 1753 int |
| 1754 code_const_op_p(int op,int v) | |
| 1755 { | |
| 1756 if (op==BAND||op==DIV||op==UDIV||op==MOD||op==UMOD) return 0; | |
| 1757 return (-127<v&&v<128); | |
| 1758 } | |
| 1759 | |
| 1760 void | |
| 1761 oprtc(int op,int v) | |
| 1762 { | |
| 1763 char *crn = register_name(creg); | |
| 1764 | |
| 1765 switch(op) { | |
| 1766 case LSHIFT: | |
| 1767 case ULSHIFT: | |
| 1768 printf("\tslwi %s,%s,%d\n",crn,crn,v); | |
| 1769 return; | |
| 1770 case RSHIFT: | |
| 1771 printf("\tsrawi %s,%s,%d\n",crn,crn,v); | |
| 1772 return; | |
| 1773 case URSHIFT: | |
| 1774 printf("\tsrwi %s,%s,%d\n",crn,crn,v); | |
| 1775 return; | |
| 1776 case ADD: | |
| 1777 printf("\taddi %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1778 break; | |
| 1779 case SUB: | |
| 1780 printf("\tsubi %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1781 break; | |
| 1782 case CMP: | |
| 1783 printf("\tcmpwi cr0,%s,lo16(%d)\n",crn,v); | |
| 1784 break; | |
| 1785 case EOR: | |
| 1786 printf("\txori %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1787 break; | |
| 1788 case BOR: | |
| 1789 printf("\tori %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1790 break; | |
| 1791 case MUL: | |
| 1792 printf("\tmulli %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1793 break; | |
| 1794 case UMUL: | |
| 1795 printf("\tmulli %s,%s,lo16(%d)\n",crn,crn,v); | |
| 1796 break; | |
| 1797 default: | |
| 1798 error(-1); | |
| 1799 } | |
| 1800 } | |
| 89 | 1801 |
| 1802 void | |
| 1803 shift(char *op, int reg) | |
| 1804 { | |
| 93 | 1805 char *crn = register_name(creg); |
| 1806 char *rrn = register_name(reg); | |
| 186 | 1807 printf("\t%s %s,%s,%s\n",op,crn,crn,rrn); |
| 89 | 1808 } |
| 1809 | |
| 1810 void | |
| 162 | 1811 ld_indexx(int byte, int n, int xreg,int sign) |
| 89 | 1812 { |
| 95 | 1813 char *crn = register_name(creg); |
| 165 | 1814 if (byte==1) { |
| 95 | 1815 printf("\tlbz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1816 register_name(xreg)); |
| 162 | 1817 if (sign) |
| 1818 printf("\textsb %s,%s\n",crn,crn); | |
| 165 | 1819 } else if (byte==size_of_short) { |
| 1820 printf("\tlhz %s,%d(%s)\n",register_name(creg),n, | |
| 1821 register_name(xreg)); | |
| 1822 if (sign) | |
| 1823 printf("\textsh %s,%s\n",crn,crn); | |
| 90 | 1824 } else |
| 95 | 1825 printf("\tlwz %s,%d(%s)\n",register_name(creg),n, |
| 90 | 1826 register_name(xreg)); |
| 89 | 1827 } |
| 1828 | |
| 95 | 1829 int |
| 1830 code_csvalue() | |
| 1831 { | |
| 1832 return creg; | |
| 1833 } | |
| 1834 | |
| 89 | 1835 void |
| 95 | 1836 code_cmpdimm(int e, int csreg) |
| 89 | 1837 { |
| 1838 /* used in dosiwtch() */ | |
| 1839 if(chk) return; | |
| 108 | 1840 printf("\tcmpwi cr0,%s,%d\n",register_name(csreg),e); |
| 89 | 1841 } |
| 1842 | |
| 1843 void | |
| 1844 code_opening(char *filename) | |
| 1845 { | |
| 1846 printf("\t.file \"%s\"\n",filename); | |
| 108 | 1847 /* printf("\t.version\t\"01.01\"\n"); */ |
| 89 | 1848 /* printf("gcc2_compiled.:\n"); */ |
| 1849 printf(".text\n"); | |
| 1850 } | |
| 1851 | |
| 1852 void | |
| 95 | 1853 rexpr(int e1, int l1, char *s,int t) |
| 89 | 1854 { |
| 90 | 1855 g_expr(list3(CMP,cadr(e1),caddr(e1))); |
| 102 | 1856 printf("\tb%s cr0,L_%d\n",s,l1); |
| 89 | 1857 } |
| 1858 | |
| 1859 | |
| 1860 void | |
| 1861 jcond(int l, char cond) | |
| 1862 { | |
| 1863 if (chk) return; | |
| 102 | 1864 printf("\tb%s cr0,L_%d\n",cond?"ne":"eq",l); |
| 89 | 1865 } |
| 1866 | |
| 1867 void | |
| 1868 jmp(int l) | |
| 1869 { | |
| 1870 control=0; | |
| 1871 if (chk) return; | |
| 102 | 1872 printf("\tb\tL_%d\n",l); |
| 89 | 1873 } |
| 1874 | |
| 1875 void | |
| 1876 gen_comment(char *s) | |
| 1877 { | |
| 1878 if (chk) return; | |
| 1879 printf("## %s",s); | |
| 1880 } | |
| 1881 | |
| 1882 void | |
| 1883 code_enter(char *name) | |
| 1884 { | |
|
100
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1885 if (output_mode!=TEXT_EMIT_MODE) |
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a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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changeset
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1886 text_mode(); |
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a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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1887 else |
| 108 | 1888 printf("\t.align 2\n"); |
| 89 | 1889 if (stmode!=STATIC) |
| 102 | 1890 printf(".globl _%s\n",name); |
| 126 | 1891 #ifdef DOT_SIZE |
| 89 | 1892 printf("\t.type\t%s,@function\n",name); |
| 126 | 1893 #endif |
| 101 | 1894 printf("_%s:\n",name); |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
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changeset
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1895 code_disp_label=fwdlabel(); |
| 128 | 1896 printf("\tla r1,lo16(L_%d)(r30)\n",code_disp_label); |
| 126 | 1897 printf("\tbcl 20,31,L_%d\n",code_base = fwdlabel()); |
| 1898 fwddef(code_base); | |
| 1899 printf("\tmflr r31\n"); | |
| 119 | 1900 max_func_args = 0; |
| 89 | 1901 } |
| 1902 | |
| 1903 | |
| 1904 void | |
| 1905 code_enter1(int args) | |
| 1906 { | |
| 106 | 1907 set_creg(CREG_REGISTER,0); |
| 1908 set_freg(FREG_FREGISTER,0); | |
| 89 | 1909 } |
| 1910 | |
| 1911 void | |
| 1912 code_leave(char *name) | |
| 1913 { | |
| 128 | 1914 int r1_offsetv; |
| 89 | 1915 disp&= -size_of_int; |
| 128 | 1916 r1_offsetv = -disp+max_func_args*size_of_int+code_disp_offset; |
| 1917 | |
| 1918 printf(".set L_%d,%d\n",code_disp_label,-r1_offsetv); | |
| 89 | 1919 local_table(); |
| 1920 free_all_register(); | |
| 1921 } | |
| 1922 | |
| 1923 void | |
| 1924 enter(char *name) | |
| 1925 { | |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
1926 if (output_mode!=TEXT_EMIT_MODE) |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
1927 text_mode(); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
1928 else |
| 108 | 1929 printf("\t.align 2\n"); |
| 89 | 1930 if (stmode!=STATIC) |
| 101 | 1931 printf(".globl _%s\n",name); |
| 108 | 1932 /* |
|
100
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Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
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diff
changeset
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1933 printf("\t.type\t%s,@function\n",name); |
| 108 | 1934 */ |
| 101 | 1935 printf("_%s:\n",name); |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
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diff
changeset
|
1936 code_setup=fwdlabel(); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
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diff
changeset
|
1937 printf("\tmflr r0\n"); |
| 102 | 1938 printf("\tbl L_%d\n",code_setup); |
|
100
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
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diff
changeset
|
1939 code_base=fwdlabel(); |
| 111 | 1940 fwddef(code_base); |
| 116 | 1941 r1_offset_label = fwdlabel(); |
| 1942 lvar_offset_label = fwdlabel(); | |
| 1943 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...
kono
parents:
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diff
changeset
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1944 printf("\tmr r30,r1\n"); |
|
a9e6f2a2946f
Wrote all code for PowerPC and no compile error. Let's fix all bugs...
kono
parents:
99
diff
changeset
|
1945 printf("\tmflr r31\n"); |
| 116 | 1946 max_func_args = 0; |
| 89 | 1947 } |
| 1948 | |
| 1949 void | |
| 1950 enter1() | |
| 1951 { | |
| 182 | 1952 text_mode(); |
| 106 | 1953 set_creg(CREG_REGISTER,0); |
| 1954 set_freg(FREG_FREGISTER,0); | |
|
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1955 } |
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1956 |
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1957 int |
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1958 reg_save_offset() |
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1959 { |
| 108 | 1960 return -( |
| 116 | 1961 (REAL_MAX_REGISTER-(REG_VAR_BASE-max_reg_var))*size_of_int+ |
| 108 | 1962 (REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*size_of_double |
| 1963 ); | |
| 89 | 1964 } |
| 1965 | |
| 1966 void | |
| 1967 leave(int control, char *name) | |
| 1968 { | |
| 130 | 1969 int retcont1=0,sz; |
| 128 | 1970 |
| 1971 if (max_freg_var>=0 && max_freg_var<=3) max_freg_var=3; | |
| 1972 reg_save = reg_save_offset(); | |
| 111 | 1973 |
|
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1974 if (control) { |
| 108 | 1975 code_set_return_register(1); |
| 89 | 1976 } |
| 126 | 1977 if (retcont) { |
| 1978 if (control) jmp(retlabel); | |
| 128 | 1979 retcont1 = fwdlabel(); |
| 126 | 1980 fwddef(retcont); |
| 1981 if (cadr(fnptr->ty)==FLOAT||cadr(fnptr->ty)==DOUBLE) { | |
| 1982 printf("\tfmr f1,f31\n"); | |
| 128 | 1983 } else if (cadr(fnptr->ty)>0&&( |
| 1984 car(cadr(fnptr->ty))==STRUCT || | |
| 1985 car(cadr(fnptr->ty))==UNION)) { | |
| 1986 sz = size(cadr(fnptr->ty)); | |
| 1987 printf("\tli r7,%d\n",sz); | |
| 1988 printf("\tsubl r6,r7,r30\n"); | |
| 1989 printf("\tlwz r3,lo16(%d)(r30)\n",(my_func_args-1)*size_of_int); | |
| 1990 emit_copy(6,3,sz,0,1,1); | |
| 126 | 1991 } else if (cadr(fnptr->ty)!=VOID) { |
| 1992 printf("\tmr r3,r29\n"); | |
| 1993 } | |
| 128 | 1994 #if !R1SAVE |
| 1995 printf("\tla r1,lo16(%d)(r30)\n", | |
| 1996 -reg_save+my_func_args*size_of_int); | |
| 1997 #endif | |
| 1998 printf("\tb L_%d\n",retcont1); | |
| 126 | 1999 } |
| 89 | 2000 fwddef(retlabel); |
|
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2001 printf("\tlwz r1,0(r1)\n"); |
| 128 | 2002 if (retcont) { |
| 2003 fwddef(retcont1); | |
| 2004 } | |
| 110 | 2005 if (max_freg_var>=0) { |
| 2006 printf("\tlmw r%d,%d(r1)\n", | |
| 111 | 2007 REG_VAR_BASE-max_reg_var,reg_save); |
| 2008 freg_save = 72-(REAL_MAX_FREGISTER-(FREG_VAR_BASE-max_freg_var))*4; | |
|
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2009 printf("\tb restFP+%d ; restore f%d-f31\n", |
| 111 | 2010 freg_save, |
|
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2011 FREG_VAR_BASE-max_freg_var); |
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2012 } else { |
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2013 printf("\tlwz r0,8(r1)\n"); |
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2014 printf("\tmtlr r0\n"); |
| 110 | 2015 printf("\tlmw r%d,%d(r1)\n", |
| 116 | 2016 REG_VAR_BASE-max_reg_var,reg_save); |
|
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2017 printf("\tblr\n"); |
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2018 } |
| 89 | 2019 |
|
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2020 disp &= -size_of_int; |
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2021 fwddef(code_setup); |
| 110 | 2022 printf("\tstmw r%d,%d(r1)\n", |
| 116 | 2023 REG_VAR_BASE-max_reg_var,reg_save); |
| 110 | 2024 printf("\tstw r0,8(r1)\n"); |
| 2025 if (max_freg_var>=0) | |
|
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2026 printf("\tb saveFP+%d ; save f%d-f31\n", |
| 111 | 2027 freg_save, |
|
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2028 FREG_VAR_BASE-max_freg_var); |
| 110 | 2029 else { |
|
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2030 printf("\tblr\n"); |
| 110 | 2031 } |
|
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|
2032 |
| 116 | 2033 code_offset_set(); |
| 89 | 2034 local_table(); |
| 2035 labelno++; | |
| 2036 free_all_register(); | |
| 2037 } | |
| 2038 | |
| 2039 | |
| 2040 void | |
| 107 | 2041 code_set_return_register(int mode) { |
| 111 | 2042 if (cadr(fnptr->ty)==DOUBLE||cadr(fnptr->ty)==FLOAT) { |
| 107 | 2043 set_freg(RET_FREGISTER,mode); |
| 147 | 2044 } else if (cadr(fnptr->ty)==VOID) { |
| 103 | 2045 } else { |
| 107 | 2046 set_creg(RET_REGISTER,mode); |
| 103 | 2047 } |
| 89 | 2048 } |
| 2049 | |
| 187 | 2050 int |
| 2051 code_get_fixed_creg(int reg,int type) { | |
| 2052 return creg; | |
| 2053 } | |
| 2054 | |
| 89 | 2055 void |
| 187 | 2056 code_set_fixed_creg(int reg,int mode,int type) { |
| 108 | 2057 if (type==FLOAT||type==DOUBLE) { |
| 187 | 2058 set_freg(reg,mode); |
| 108 | 2059 } else { |
| 187 | 2060 set_creg(reg,mode); |
| 108 | 2061 } |
| 107 | 2062 } |
| 2063 | |
| 2064 void | |
| 89 | 2065 gen_gdecl(char *n, int gpc) |
| 2066 { | |
| 102 | 2067 /* |
| 89 | 2068 if (stmode!=STATIC) |
| 99 | 2069 printf(".globl _%s\n",n); |
| 102 | 2070 */ |
| 89 | 2071 } |
| 2072 | |
| 2073 void | |
| 2074 align(int t) | |
| 2075 { | |
| 2076 if (t!=CHAR) { | |
| 2077 if (data_alignment & 1) | |
| 2078 printf("\t.align 2\n"); | |
| 2079 data_alignment = 0; | |
| 2080 } | |
| 2081 } | |
| 2082 | |
| 2083 void | |
| 2084 emit_data(int e, int t, NMTBL *n) | |
| 2085 { | |
| 2086 int l; | |
| 2087 double d; | |
| 2088 float f; | |
| 2089 char *name; | |
| 2090 name = n->nm; | |
| 156 | 2091 if(mode!=GDECL && mode!=STADECL) { |
| 89 | 2092 error(-1); return; |
| 2093 } | |
| 2094 if (chk) return; | |
| 2095 if (n->dsp != -1) { | |
| 2096 n->dsp = -1; /* initiallized flag */ | |
| 102 | 2097 printf(".globl\t_%s\n",name); |
| 89 | 2098 data_mode(name); |
| 2099 align(t); | |
| 102 | 2100 printf("_%s:\n",name); |
| 89 | 2101 } else { |
| 2102 data_mode(0); | |
| 2103 } | |
| 2104 if(car(e)==CONST) { | |
| 168 | 2105 if (t==CHAR||t==UCHAR) { |
| 89 | 2106 printf("\t.byte %d\n",cadr(e)); |
| 2107 if (data_alignment>0) | |
| 2108 data_alignment++; | |
| 2109 gpc += 1; | |
| 168 | 2110 } else if (t==SHORT||t==USHORT) { |
| 2111 printf("\t.short %d\n",cadr(e)); | |
| 89 | 2112 if (data_alignment>0) data_alignment++; |
| 168 | 2113 gpc += size_of_short; |
| 89 | 2114 } else { |
| 2115 printf("\t.long %d\n",cadr(e)); | |
| 2116 gpc += size_of_int; | |
| 2117 } | |
| 2118 } else if(t==DOUBLE) { | |
| 2119 d = dcadr(e); | |
| 99 | 2120 printf("\t.long\t0x%x,0x%x\n",code_d2(d),code_d1(d)); |
| 89 | 2121 } else if(t==FLOAT) { |
| 2122 f = dcadr(e); | |
| 2123 printf("\t.long\t0x%x\n",*(int *)&f); | |
| 2124 } else if(t!=CHAR) { | |
| 2125 gpc += size_of_int; | |
| 2126 if(car(e)==ADDRESS&&car(cadr(e))==GVAR) { | |
| 116 | 2127 printf("\t.long _%s\n",((NMTBL *)cadr(cadr(e)))->nm); |
| 89 | 2128 } else if(car(e)==FNAME) { |
| 116 | 2129 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 109 | 2130 } else if(car(e)==GVAR) { |
| 116 | 2131 printf("\t.long _%s\n",((NMTBL *)cadr(e))->nm); |
| 89 | 2132 } else if(car(e)==STRING) { |
| 2133 if (car(n->ty)!=ARRAY || cadr(n->ty)!=CHAR) { | |
| 2134 l = fwdlabel(); | |
| 102 | 2135 printf("\t.long L_%d\n",l); |
| 108 | 2136 printf(".cstring\n\t.align 2\n"); |
| 102 | 2137 printf("L_%d:\n",l); |
| 89 | 2138 output_mode = RODATA_EMIT_MODE; |
| 2139 } | |
| 2140 ascii((char *)cadr(e)); | |
| 2141 } else error(TYERR); | |
| 168 | 2142 } else error(TYERR); |
| 89 | 2143 } |
| 2144 | |
| 2145 void | |
| 2146 emit_data_closing(NMTBL *n) | |
| 2147 { | |
| 126 | 2148 #ifdef DOT_SIZE |
| 89 | 2149 int lb; |
| 126 | 2150 #endif |
| 89 | 2151 if (chk) return; |
| 2152 if (mode==GDECL) { | |
| 2153 data_mode(0); | |
| 126 | 2154 #ifdef DOT_SIZE |
| 89 | 2155 lb=fwdlabel(); |
| 102 | 2156 printf("L_%d:\n",lb); |
| 2157 printf("\t.size\t%s,L_%d-%s\n",n->nm,lb,n->nm); | |
| 126 | 2158 #endif |
| 89 | 2159 } |
| 2160 } | |
| 2161 | |
| 2162 void | |
| 2163 global_table(void) | |
| 2164 { | |
| 2165 NMTBL *n; | |
| 98 | 2166 int init; char *extrn; |
| 89 | 2167 init=0; |
| 2168 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 109 | 2169 if ((n->sc == GVAR) && n->dsp != -1) { |
| 89 | 2170 /* n->dsp = -1 means initialized global */ |
| 2171 if (init==0) { | |
| 2172 data_mode(0); | |
| 2173 init=1; | |
| 2174 } | |
| 97 | 2175 printf(".comm _%s,%d\n",n->nm,size(n->ty)); |
| 109 | 2176 } else if ((n->sc==STATIC) && n->dsp != -1) { |
| 2177 /* n->dsp = -1 means initialized global */ | |
| 2178 if (init==0) { | |
| 2179 data_mode(0); | |
| 2180 init=1; | |
| 2181 } | |
| 2182 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); | |
| 97 | 2183 } |
| 2184 } | |
| 2185 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 103 | 2186 if (is_code(n)||is_function(n)) { |
| 97 | 2187 extrn = n->nm; |
| 103 | 2188 if (n->sc==EXTRN1) { |
| 2189 data_mode(0); | |
| 2190 printf(".picsymbol_stub\n"); | |
| 97 | 2191 printf("L_%s$stub:\n",extrn); |
| 2192 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2193 printf("\tmflr r0\n"); | |
| 2194 printf("\tbcl 20,31,L0$_%s\n",extrn); | |
| 2195 printf("L0$_%s:\n",extrn); | |
| 2196 printf("\tmflr r11\n"); | |
| 2197 printf("\taddis r11,r11,ha16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2198 printf("\tmtlr r0\n"); | |
| 2199 printf("\tlwz r12,lo16(L_%s$lazy_ptr-L0$_%s)(r11)\n",extrn,extrn); | |
| 2200 printf("\tmtctr r12\n"); | |
| 2201 printf("\taddi r11,r11,lo16(L_%s$lazy_ptr-L0$_%s)\n",extrn,extrn); | |
| 2202 printf("\tbctr\n"); | |
| 2203 printf(".data\n"); | |
| 2204 printf(".lazy_symbol_pointer\n"); | |
| 2205 printf("L_%s$lazy_ptr:\n",extrn); | |
| 2206 printf("\t.indirect_symbol _%s\n",extrn); | |
| 2207 printf("\t.long dyld_stub_binding_helper\n"); | |
| 103 | 2208 } else if (n->sc==FUNCTION||n->sc==CODE) { |
| 2209 text_mode(); | |
| 2210 printf("\t.set L_%s$stub,_%s\n",extrn,extrn); | |
| 109 | 2211 data_mode(0); |
| 111 | 2212 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",extrn,extrn); |
| 108 | 2213 } |
| 97 | 2214 } |
| 2215 } | |
| 109 | 2216 init=0; |
| 2217 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 2218 if (n->sc == GVAR) { | |
| 2219 if (init==0) { | |
| 119 | 2220 printf(".data\n"); |
| 109 | 2221 init=1; |
| 2222 } | |
| 116 | 2223 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",n->nm,n->nm); |
| 109 | 2224 } |
| 2225 } | |
| 97 | 2226 init = 0; |
| 2227 for(n=ntable;n < &ntable[GSYMS];n++) { | |
| 116 | 2228 if (is_code(n)||is_function(n)) continue; |
| 109 | 2229 if (n->sc==EXTRN1) { |
| 97 | 2230 if(init==0) { |
| 119 | 2231 printf(".data\n"); |
| 97 | 2232 printf(".non_lazy_symbol_pointer\n"); |
| 2233 init=1; | |
| 2234 } | |
| 2235 printf("L_%s$non_lazy_ptr:\n",n->nm); | |
| 2236 printf("\t.indirect_symbol _%s\n",n->nm); | |
| 2237 printf("\t.long\t0\n"); | |
| 89 | 2238 } |
| 2239 } | |
| 2240 } | |
| 2241 | |
| 2242 void | |
| 2243 local_table(void) | |
| 2244 { | |
| 2245 NMTBL *n; | |
| 2246 int init; | |
| 2247 init=0; | |
| 2248 /* static local variables */ | |
| 2249 for(n=ntable+GSYMS;n < &ntable[GSYMS+LSYMS];n++) { | |
| 2250 if (n->sc == GVAR) { | |
| 2251 if (init==0) { | |
| 2252 data_mode(0); | |
| 2253 init=1; | |
| 2254 } | |
| 156 | 2255 if (n->dsp != -1) /* initialized static */ |
| 2256 printf(".lcomm _%s,%d\n",n->nm,size(n->ty)); | |
| 2257 printf("L_%s$non_lazy_ptr:\n\t.long\t_%s\n",n->nm,n->nm); | |
| 89 | 2258 } |
| 2259 } | |
| 2260 } | |
| 2261 | |
| 2262 void | |
| 2263 text_mode(void) | |
| 2264 { | |
| 2265 if (output_mode!=TEXT_EMIT_MODE) { | |
| 2266 printf(".text\n"); | |
| 2267 printf("\t.align 2\n"); | |
| 2268 output_mode = TEXT_EMIT_MODE; | |
| 2269 } | |
| 2270 } | |
| 2271 | |
| 2272 void | |
| 2273 data_mode(char *name) | |
| 2274 { | |
| 2275 if (output_mode!=DATA_EMIT_MODE) { | |
| 2276 printf(".data\n"); | |
| 2277 output_mode = DATA_EMIT_MODE; | |
| 2278 } | |
| 108 | 2279 /* |
| 89 | 2280 if (name) |
| 2281 printf("\t.type\t%s,@object\n",name); | |
| 108 | 2282 */ |
| 89 | 2283 } |
| 2284 | |
| 2285 /* floating point */ | |
| 2286 | |
| 96 | 2287 static int float_one_lib_used=0; |
| 2288 static char *float_one_lib[] = { | |
| 2289 ".data", | |
| 108 | 2290 /* ".literal8", */ |
| 96 | 2291 " .align 3", |
| 2292 "__float_one:", | |
| 2293 " .long 1065353216", | |
| 2294 ".text", | |
| 109 | 2295 /* ".set L__float_one$non_lazy_ptr,__float_one", */ |
| 96 | 2296 0 |
| 2297 }; | |
| 97 | 2298 static int float_zero_lib_used=0; |
| 2299 static char *float_zero_lib[] = { | |
| 2300 ".data", | |
| 108 | 2301 /* ".literal8", */ |
| 97 | 2302 " .align 3", |
| 2303 "__float_zero:", | |
| 2304 " .long 0", | |
| 2305 ".text", | |
| 109 | 2306 /* ".set L__float_zero$non_lazy_ptr,__float_zero", */ |
| 97 | 2307 0 |
| 2308 }; | |
| 2309 | |
| 96 | 2310 |
| 89 | 2311 |
| 2312 char * | |
| 2313 fstore(int d) | |
| 2314 { | |
| 90 | 2315 return (d?"stfd":"stfs"); |
| 89 | 2316 } |
| 2317 | |
| 2318 char * | |
| 2319 fload(int d) | |
| 2320 { | |
| 90 | 2321 return d?"lfd":"lfs"; |
| 89 | 2322 } |
| 2323 | |
| 95 | 2324 void |
| 138 | 2325 code_cmp_dregister(int e2,int d) |
| 95 | 2326 { |
| 99 | 2327 char *frn,*rrn,*grn; |
| 2328 int greg,r; | |
| 138 | 2329 grn = register_name(greg = get_dregister(d)); |
| 132 | 2330 frn = register_name(e2); |
| 99 | 2331 float_zero_lib_used=1; |
| 109 | 2332 r = get_ptr_cache(&float_zero); |
| 99 | 2333 rrn = register_name(r); |
| 108 | 2334 printf("\tlfs %s,0(%s)\n",grn,rrn); |
| 99 | 2335 printf("\tfcmpu cr0,%s,%s\n",grn,frn); |
| 147 | 2336 free_register(greg); |
| 99 | 2337 return; |
| 95 | 2338 } |
| 2339 | |
| 2340 void | |
| 138 | 2341 code_dregister(int e2,int freg,int d) |
| 95 | 2342 { |
| 147 | 2343 if (freg!=e2) { |
| 2344 if (is_int_reg(e2)) error(-1); | |
| 108 | 2345 printf("\tfmr %s,%s\n",fregister_name(freg),fregister_name(e2)); |
| 147 | 2346 } |
| 145 | 2347 regv[freg]=1; |
| 95 | 2348 } |
| 2349 | |
| 103 | 2350 void code_dassign_gvar(int e2,int freg,int d) |
| 89 | 2351 { |
| 90 | 2352 int r; |
| 109 | 2353 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 147 | 2354 if (!is_float_reg(freg)) error(-1); |
| 108 | 2355 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(r)); |
| 145 | 2356 regv[freg]=1; |
| 89 | 2357 } |
| 2358 | |
| 103 | 2359 void code_dassign_lvar(int e2,int freg,int d) |
| 89 | 2360 { |
| 119 | 2361 lvar_intro(e2); |
| 147 | 2362 if (!is_float_reg(freg)) error(-1); |
| 119 | 2363 printf("\t%s %s,",fstore(d),fregister_name(freg)); |
| 2364 lvar(e2); | |
| 145 | 2365 regv[freg]=1; |
| 89 | 2366 } |
| 2367 | |
| 103 | 2368 void code_dassign(int e2,int freg,int d) |
| 89 | 2369 { |
| 147 | 2370 if (!is_float_reg(freg)) error(-1); |
| 108 | 2371 printf("\t%s %s,0(%s)\n",fstore(d),fregister_name(freg),register_name(e2)); |
| 145 | 2372 regv[freg]=1; |
| 89 | 2373 } |
| 2374 | |
| 111 | 2375 void |
| 138 | 2376 code_dassign_dregister(int e2,int d,int freg) { |
| 147 | 2377 if (e2!=freg) { |
| 2378 if (is_int_reg(freg)) error(-1); | |
| 111 | 2379 printf("\tfmr %s,%s\n",fregister_name(e2),fregister_name(freg)); |
| 147 | 2380 } |
| 111 | 2381 } |
| 2382 | |
| 89 | 2383 static double d0 = 1.0; |
| 2384 | |
| 2385 int | |
| 2386 code_d1(double d) | |
| 2387 { | |
| 2388 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2389 return (i[1] == 0x3ff00000)?j[0]:j[1]; |
| 89 | 2390 } |
| 2391 | |
| 2392 int | |
| 2393 code_d2(double d) | |
| 2394 { | |
| 2395 int *i = (int *)&d0; int *j = (int *)&d; | |
| 99 | 2396 return (i[1] == 0x3ff00000)?j[1]:j[0]; |
| 89 | 2397 } |
| 2398 | |
| 133 | 2399 int |
| 2400 code_f(double d) | |
| 2401 { | |
| 2402 float f = d; | |
| 2403 int *j = (int *)&f; | |
| 2404 return *j; | |
| 2405 } | |
| 2406 | |
| 138 | 2407 void |
| 2408 code_dconst(int e2,int freg,int d) | |
| 89 | 2409 { |
| 2410 int lb; | |
| 138 | 2411 double value = dcadr(e2); |
| 90 | 2412 int r; |
| 97 | 2413 char *rrn,*frn; |
| 2414 frn = fregister_name(freg); | |
| 138 | 2415 if (value==0.0) { |
| 97 | 2416 float_zero_lib_used=1; |
| 109 | 2417 r = get_ptr_cache(&float_zero); |
| 98 | 2418 rrn = register_name(r); |
| 108 | 2419 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2420 return; |
| 89 | 2421 } |
| 138 | 2422 if (value==1.0) { |
| 97 | 2423 float_one_lib_used=1; |
| 109 | 2424 r = get_ptr_cache(&float_one); |
| 98 | 2425 rrn = register_name(r); |
| 108 | 2426 printf("\tlfs %s,0(%s)\n",frn,rrn); |
| 97 | 2427 return; |
| 89 | 2428 } |
| 97 | 2429 rrn = register_name((r=get_register())); |
| 108 | 2430 printf(" \t.data\n\t.align 3\n"); |
| 89 | 2431 lb=fwdlabel(); |
| 102 | 2432 printf("L_%d:\n",lb); |
| 138 | 2433 if (d) { |
| 2434 printf("\t.long\t0x%x,0x%x\n",code_d2(value),code_d1(value)); | |
| 133 | 2435 } else { |
| 138 | 2436 printf("\t.long\t0x%x\n",code_f(value)); |
| 133 | 2437 } |
| 89 | 2438 if (output_mode==TEXT_EMIT_MODE) { |
| 2439 printf(".text\n"); | |
| 2440 } else { | |
| 2441 text_mode(); | |
| 2442 } | |
| 102 | 2443 printf("\taddis %s,r31,ha16(L_%d-L_%d)\n",rrn,lb,code_base); |
| 2444 printf("\tla %s,lo16(L_%d-L_%d)(%s)\n",rrn,lb,code_base,rrn); | |
| 138 | 2445 if (d) { |
| 133 | 2446 printf("\tlfd %s,0(%s)\n",frn,rrn); |
| 2447 } else { | |
| 2448 printf("\tlfs %s,0(%s)\n",frn,rrn); | |
| 2449 } | |
| 90 | 2450 free_register(r); |
| 145 | 2451 regv[freg]=1; |
| 89 | 2452 } |
| 2453 | |
| 133 | 2454 |
| 138 | 2455 void code_dneg(int freg,int d) |
| 89 | 2456 { |
| 97 | 2457 char *frn = fregister_name(freg); |
| 147 | 2458 if (is_int_reg(freg)) error(-1); |
| 95 | 2459 printf("\tfneg %s,%s\n",frn,frn); |
| 89 | 2460 } |
| 2461 | |
| 147 | 2462 void code_d2i(int freg0) |
| 89 | 2463 { |
| 147 | 2464 char *frn; |
| 2465 char *crn; | |
| 119 | 2466 int e2 = new_lvar(size_of_double); |
| 147 | 2467 |
| 2468 freg0 = use_double(freg0); | |
| 2469 frn = fregister_name(freg0); | |
| 2470 creg = use_int(creg); | |
| 2471 crn = register_name(creg); | |
| 2472 | |
| 2473 freg = freg0; | |
| 119 | 2474 free_lvar(e2); |
| 93 | 2475 printf("\tfctiwz %s,%s\n",frn,frn); |
| 119 | 2476 lvar_intro(e2); |
| 2477 printf("\tstfd %s,",frn); lvar(e2); | |
| 2478 lvar_intro(e2+size_of_double-size_of_int); | |
| 2479 printf("\tlwz %s,",crn); lvar(e2+size_of_double-size_of_int); | |
| 147 | 2480 regv[creg]=1; |
| 89 | 2481 } |
| 2482 | |
| 91 | 2483 static int i2d_lib_used=0; |
| 2484 static char *i2d_lib[] = { | |
| 2485 ".data", | |
| 108 | 2486 /* ".literal8", */ |
| 91 | 2487 " .align 3", |
| 2488 "__i2dLC0:", | |
| 2489 " .long 1127219200", | |
| 2490 " .long -2147483648", | |
| 2491 ".text", | |
| 2492 " .align 2", | |
| 111 | 2493 "i2d_:", |
| 91 | 2494 " mflr r0", |
| 2495 " bcl 20,31,__i2dL1$pb", | |
| 2496 "__i2dL1$pb:", | |
| 2497 " mflr r10", | |
| 2498 " mtlr r0", | |
| 2499 " xoris r3,r3,0x8000", | |
| 116 | 2500 " stw r3,-28(r30)", |
| 91 | 2501 " lis r0,0x4330", |
| 116 | 2502 " stw r0,-32(r30)", |
| 2503 " lfd f0,-32(r30)", | |
| 91 | 2504 " addis r9,r10,ha16(__i2dLC0-__i2dL1$pb)", |
| 2505 " lfd f1,lo16(__i2dLC0-__i2dL1$pb)(r9)", | |
| 2506 " fsub f1,f0,f1", | |
| 2507 " blr", | |
| 2508 0 | |
| 2509 }; | |
| 2510 | |
| 147 | 2511 void code_i2d(int creg0) |
| 89 | 2512 { |
| 95 | 2513 i2d_lib_used = 1; |
| 113 | 2514 clear_ptr_cache(); |
| 2515 code_save_stacks(); | |
| 104 | 2516 set_creg(RET_REGISTER,1); |
| 91 | 2517 printf("\tbl i2d_\n"); |
| 104 | 2518 set_freg(RET_FREGISTER,0); |
| 147 | 2519 regv[freg]=1; |
| 89 | 2520 } |
| 2521 | |
| 91 | 2522 static int d2u_lib_used=0; |
| 2523 static char *d2u_lib[] = { | |
| 108 | 2524 /* ".literal8", */ |
| 91 | 2525 " .align 3", |
| 2526 "__d2uLC0:", | |
| 2527 " .long 1105199104", | |
| 2528 " .long 0", | |
| 2529 ".text", | |
| 2530 " .align 2", | |
| 111 | 2531 "d2u_:", |
| 91 | 2532 " mflr r0", |
| 2533 " bcl 20,31,__d2uL1$pb", | |
| 2534 "__d2uL1$pb:", | |
| 2535 " mflr r10", | |
| 2536 " mtlr r0", | |
| 2537 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2538 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2539 " fcmpu cr0,f1,f0", | |
| 2540 " cror 2,1,2", | |
| 2541 " beq- cr0,__d2uL2", | |
| 2542 " fctiwz f0,f1", | |
| 116 | 2543 " stfd f0,-32(r30)", |
| 2544 " lwz r3,-28(r30)", | |
| 91 | 2545 " blr", |
| 2546 "__d2uL2:", | |
| 2547 " addis r9,r10,ha16(__d2uLC0-__d2uL1$pb)", | |
| 2548 " lfd f0,lo16(__d2uLC0-__d2uL1$pb)(r9)", | |
| 2549 " fsub f0,f1,f0", | |
| 2550 " fctiwz f0,f0", | |
| 116 | 2551 " stfd f0,-24(r30)", |
| 2552 " lwz r3,-20(r30)", | |
| 91 | 2553 " xoris r3,r3,0x8000", |
| 2554 " blr", | |
| 2555 0 | |
| 2556 }; | |
| 2557 | |
| 147 | 2558 void code_d2u(int freg0) |
| 89 | 2559 { |
| 113 | 2560 code_save_stacks(); |
| 2561 clear_ptr_cache(); | |
| 91 | 2562 d2u_lib_used=1; |
| 104 | 2563 set_freg(RET_FREGISTER,1); |
| 111 | 2564 printf("\tbl d2u_\n"); |
| 104 | 2565 set_creg(RET_REGISTER,0); |
| 147 | 2566 regv[freg]=1; |
| 91 | 2567 } |
| 90 | 2568 |
| 91 | 2569 static int u2d_lib_used=0; |
| 2570 static char *u2d_lib[] = { | |
| 2571 ".data", | |
| 108 | 2572 /* ".literal8", */ |
| 91 | 2573 " .align 3", |
| 2574 "__u2dLC1:", | |
| 2575 " .long 1127219200", | |
| 2576 " .long 0", | |
| 2577 ".text", | |
| 2578 " .align 2", | |
| 111 | 2579 "u2d_:", |
| 91 | 2580 " mflr r0", |
| 2581 " bcl 20,31,__u2dL2$pb", | |
| 2582 "__u2dL2$pb:", | |
| 2583 " mflr r10", | |
| 2584 " mtlr r0", | |
| 116 | 2585 " stw r3,-28(r30)", |
| 91 | 2586 " lis r0,0x4330", |
| 116 | 2587 " stw r0,-32(r30)", |
| 2588 " lfd f0,-32(r30)", | |
| 91 | 2589 " addis r9,r10,ha16(__u2dLC1-__u2dL2$pb)", |
| 2590 " lfd f1,lo16(__u2dLC1-__u2dL2$pb)(r9)", | |
| 2591 " fsub f1,f0,f1", | |
| 2592 " blr", | |
| 2593 0 | |
| 2594 }; | |
| 89 | 2595 |
| 147 | 2596 void code_u2d(int creg0) |
| 89 | 2597 { |
| 113 | 2598 code_save_stacks(); |
| 2599 clear_ptr_cache(); | |
| 147 | 2600 u2d_lib_used = 1; |
| 2601 set_creg(RET_REGISTER,1); | |
| 111 | 2602 printf("\tbl u2d_\n"); |
| 147 | 2603 set_freg(FREG_FREGISTER,0); |
| 2604 regv[freg]=1; | |
| 89 | 2605 } |
| 2606 | |
| 133 | 2607 void code_d2f(int freg) { } |
| 2608 void code_f2d(int freg) { } | |
| 147 | 2609 void code_f2i(int freg) { code_d2i(freg); } |
| 2610 void code_f2u(int freg) { code_d2u(freg); } | |
| 2611 void code_i2f(int creg) { code_i2d(creg); } | |
| 2612 void code_u2f(int creg) { code_u2d(creg); } | |
| 133 | 2613 |
| 107 | 2614 void code_drgvar(int e2,int d,int freg) |
| 89 | 2615 { |
| 91 | 2616 int r; |
| 109 | 2617 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2618 printf("\t%s %s,0(%s)\n",fload(d),fregister_name(freg),register_name(r)); |
| 145 | 2619 regv[freg]=1; |
| 89 | 2620 } |
| 2621 | |
| 2622 | |
| 107 | 2623 void code_drlvar(int e2,int d,int freg) |
| 89 | 2624 { |
| 119 | 2625 lvar_intro(e2); |
| 2626 printf("\t%s %s,",fload(d),fregister_name(freg)); lvar(e2); | |
| 145 | 2627 regv[freg]=1; |
| 89 | 2628 } |
| 2629 | |
| 138 | 2630 void code_cmp_drgvar(int e2,int d) |
| 89 | 2631 { |
| 91 | 2632 int r; |
| 97 | 2633 char *frn=fregister_name(freg); |
| 138 | 2634 int g=get_dregister(d); |
| 97 | 2635 char *grn=fregister_name(g); |
| 109 | 2636 r = get_ptr_cache((NMTBL*)cadr(e2)); |
| 108 | 2637 printf("\t%s %s,0(%s)\n",fload(1),grn,register_name(r)); |
| 91 | 2638 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 147 | 2639 free_register(g); |
| 145 | 2640 regv[freg]=0; |
| 89 | 2641 } |
| 2642 | |
| 138 | 2643 void code_cmp_drlvar(int e2,int d) |
| 89 | 2644 { |
| 97 | 2645 char *frn=fregister_name(freg); |
| 138 | 2646 int g=get_dregister(d); |
| 97 | 2647 char *grn=fregister_name(g); |
| 108 | 2648 |
| 119 | 2649 lvar_intro(e2); |
| 2650 printf("\t%s %s,",fload(1),grn); lvar(e2); | |
| 91 | 2651 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 147 | 2652 free_register(g); |
| 145 | 2653 regv[freg]=0; |
| 89 | 2654 } |
| 2655 | |
| 2656 void dtosop(int op,int e1) | |
| 2657 { | |
| 127 | 2658 char *opn=""; |
| 97 | 2659 char *frn=fregister_name(freg); |
| 2660 char *grn=fregister_name(e1); | |
| 145 | 2661 regv[freg]=1; |
| 89 | 2662 switch(op) { |
| 133 | 2663 case FADD: |
| 91 | 2664 case DADD: opn="fadd"; break; |
| 133 | 2665 case FSUB: |
| 101 | 2666 case DSUB: opn="fsub"; break; |
| 133 | 2667 case FDIV: |
| 101 | 2668 case DDIV: opn="fdiv"; break; |
| 133 | 2669 case FMUL: |
| 101 | 2670 case DMUL: opn="fmul"; break; |
| 133 | 2671 case FCMP: |
| 91 | 2672 case DCMP: |
| 108 | 2673 printf("\tfcmpu cr0,%s,%s\n",frn,grn); |
| 147 | 2674 free_register(e1); |
| 101 | 2675 return; |
| 133 | 2676 case FCMPGE: |
| 91 | 2677 case DCMPGE: |
| 108 | 2678 printf("\tfcmpu cr7,%s,%s\n",frn,grn); |
| 147 | 2679 free_register(e1); |
| 101 | 2680 return; |
| 133 | 2681 default: |
| 2682 error(-1); return; | |
| 89 | 2683 } |
| 91 | 2684 printf("\t%s %s,%s,%s\n",opn,frn,frn,grn); |
| 145 | 2685 regv[freg]=1; |
| 147 | 2686 free_register(e1); |
| 89 | 2687 } |
| 2688 | |
| 2689 void | |
| 2690 code_dassop(int op,int d) { | |
| 91 | 2691 /* we have lvalue in creg, applied floating value is in freg */ |
| 97 | 2692 char *frn=fregister_name(freg); |
| 138 | 2693 int xreg=emit_dpop(d); |
| 91 | 2694 char *crn=register_name(creg); |
| 2695 | |
| 147 | 2696 if (!is_float_reg(freg)) error(-1); |
| 108 | 2697 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 102 | 2698 dtosop(op,xreg); |
| 108 | 2699 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 138 | 2700 emit_dpop_free(xreg,d); |
| 145 | 2701 regv[freg]=1; |
| 89 | 2702 } |
| 2703 | |
| 91 | 2704 |
| 89 | 2705 void |
| 107 | 2706 code_dpreinc(int e1,int e2,int d,int reg) { |
| 91 | 2707 char *frn; |
| 2708 char *crn; | |
| 2709 int g; | |
| 2710 char *grn,*drn; | |
| 2711 int r; | |
| 109 | 2712 r = get_ptr_cache(&float_one); |
| 96 | 2713 float_one_lib_used=1; |
| 91 | 2714 |
| 144 | 2715 if (car(e2)==DREGISTER||car(e2)==FREGISTER) { |
| 2716 error(-1); /* unspported now */ | |
| 2717 } | |
| 89 | 2718 g_expr(e2); |
| 91 | 2719 |
| 2720 crn=register_name(creg); | |
| 97 | 2721 frn=fregister_name(freg); |
| 91 | 2722 drn=register_name(r); |
| 138 | 2723 grn=fregister_name(g=get_dregister(d)); |
| 91 | 2724 |
| 108 | 2725 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2726 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2727 if (caddr(e1)>0) |
| 91 | 2728 printf("\tfadd %s,%s,%s\n",frn,frn,grn); |
| 89 | 2729 else |
| 91 | 2730 printf("\tfsub %s,%s,%s\n",frn,frn,grn); |
| 147 | 2731 if (!is_float_reg(freg)) error(-1); |
| 108 | 2732 printf("\t%s %s,0(%s)\n",fstore(d),frn,crn); |
| 147 | 2733 free_register(g); |
| 145 | 2734 regv[freg]=1; |
| 147 | 2735 regv[ireg]=0; |
| 2736 creg = freg; | |
| 89 | 2737 } |
| 2738 | |
| 2739 void | |
| 107 | 2740 code_dpostinc(int e1,int e2,int d,int reg) { |
| 91 | 2741 char *frn; |
| 2742 char *crn; | |
| 2743 int g; | |
| 2744 char *grn,*drn; | |
| 2745 int r; | |
| 109 | 2746 r = get_ptr_cache(&float_one); |
| 96 | 2747 float_one_lib_used=1; |
| 91 | 2748 |
| 144 | 2749 if (car(e2)==DREGISTER||car(e2)==FREGISTER) { |
| 2750 error(-1); /* unspported now */ | |
| 2751 } | |
| 89 | 2752 g_expr(e2); |
| 91 | 2753 |
| 2754 crn=register_name(creg); | |
| 97 | 2755 frn=fregister_name(freg); |
| 91 | 2756 drn=register_name(r); |
| 138 | 2757 grn=fregister_name(g=get_dregister(d)); |
| 91 | 2758 |
| 108 | 2759 printf("\t%s %s,0(%s)\n",fload(d),frn,crn); |
| 2760 printf("\tlfs %s,0(%s)\n",grn,drn); | |
| 89 | 2761 if (caddr(e1)>0) |
| 91 | 2762 printf("\tfadd %s,%s,%s\n",grn,frn,grn); |
| 89 | 2763 else |
| 91 | 2764 printf("\tfsub %s,%s,%s\n",grn,frn,grn); |
| 147 | 2765 if (!is_float_reg(freg)) error(-1); |
| 108 | 2766 printf("\t%s %s,0(%s)\n",fstore(d),grn,crn); |
| 147 | 2767 free_register(g); |
| 145 | 2768 regv[freg]=1; |
| 147 | 2769 regv[ireg]=0; |
| 2770 creg = freg; | |
| 89 | 2771 } |
| 2772 | |
| 2773 void | |
| 2774 drexpr(int e1, int e2,int l1, int op) | |
| 2775 { | |
| 91 | 2776 g_expr(list3(((op==DOP+GE)?DCMPGE:DCMP),e1,e2)); |
| 89 | 2777 switch(op) { |
| 2778 case DOP+GE: | |
| 133 | 2779 case FOP+GE: |
| 91 | 2780 printf("\tcror 2,29,30\n"); |
| 111 | 2781 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2782 break; |
| 2783 case DOP+GT: | |
| 133 | 2784 case FOP+GT: |
| 111 | 2785 printf("\tble\tcr0,L_%d\n",l1); |
| 89 | 2786 break; |
| 2787 case DOP+EQ: | |
| 133 | 2788 case FOP+EQ: |
| 111 | 2789 printf("\tbne\tcr0,L_%d\n",l1); |
| 89 | 2790 break; |
| 2791 case DOP+NEQ: | |
| 133 | 2792 case FOP+NEQ: |
| 111 | 2793 printf("\tbeq\tcr0,L_%d\n",l1); |
| 89 | 2794 break; |
| 2795 } | |
| 2796 } | |
| 2797 | |
| 138 | 2798 int emit_dpop(int d) |
| 89 | 2799 { |
| 114 | 2800 int xreg,reg; |
| 97 | 2801 xreg=pop_fregister(); |
| 2802 if (xreg<= -REG_LVAR_OFFSET) { | |
| 138 | 2803 reg = get_dregister(d); |
| 119 | 2804 code_drlvar(REG_LVAR_OFFSET+xreg,1,reg); |
| 117 | 2805 free_lvar(REG_LVAR_OFFSET+xreg); |
| 145 | 2806 regv[reg]=1; xreg=reg; |
| 96 | 2807 } |
| 2808 return xreg; | |
| 89 | 2809 } |
| 2810 | |
| 138 | 2811 void emit_dpop_free(int e1,int d) |
| 89 | 2812 { |
| 147 | 2813 free_register(e1); |
| 89 | 2814 } |
| 2815 | |
| 138 | 2816 void emit_dpush(int d) |
| 89 | 2817 { |
| 97 | 2818 int new_reg; |
| 102 | 2819 if (freg_sp>MAX_MAX) error(-1); |
| 138 | 2820 new_reg = get_dregister(1); |
| 97 | 2821 freg_stack[freg_sp++] = freg; /* push するかわりにレジスタを使う */ |
| 147 | 2822 creg = freg = new_reg; |
| 145 | 2823 regv[freg]=1; |
| 89 | 2824 } |
| 2825 | |
| 95 | 2826 void |
| 2827 code_save_stacks() | |
| 2828 { | |
| 103 | 2829 int i,reg; |
| 101 | 2830 for(i=0;i<reg_sp;i++) { |
| 103 | 2831 if ((reg=reg_stack[i])>=0) { |
| 101 | 2832 code_assign_lvar( |
| 119 | 2833 (reg_stack[i]=new_lvar(size_of_int)),reg,0); |
| 101 | 2834 reg_stack[i]= reg_stack[i]-REG_LVAR_OFFSET; |
| 2835 } | |
| 2836 } | |
| 2837 for(i=0;i<freg_sp;i++) { | |
| 103 | 2838 if ((reg=freg_stack[i])>=0) { |
| 101 | 2839 code_dassign_lvar( |
| 119 | 2840 (freg_stack[i]=new_lvar(size_of_double)),reg,1); |
| 101 | 2841 freg_stack[i]= freg_stack[i]-REG_LVAR_OFFSET; |
| 2842 } | |
| 2843 } | |
| 96 | 2844 } |
| 2845 | |
| 2846 void | |
| 2847 emit_lib(char *p[]) | |
| 95 | 2848 { |
| 98 | 2849 while(*p) { |
| 2850 printf("%s\n",*p++); | |
| 96 | 2851 } |
| 2852 } | |
| 2853 | |
| 2854 void | |
| 2855 code_closing() | |
| 2856 { | |
| 2857 if (d2u_lib_used) emit_lib(d2u_lib); | |
| 2858 if (u2d_lib_used) emit_lib(u2d_lib); | |
| 2859 if (float_one_lib_used) emit_lib(float_one_lib); | |
| 98 | 2860 if (float_zero_lib_used) emit_lib(float_zero_lib); |
| 96 | 2861 if (i2d_lib_used) emit_lib(i2d_lib); |
| 97 | 2862 global_table(); |
| 108 | 2863 /* printf("\t.ident \"Micro-C compiled\"\n"); */ |
| 95 | 2864 } |
| 2865 | |
| 89 | 2866 /* end */ |
| 2867 |