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1.1 ! root 1: /* Definitions of target machine for GNU compiler. SONY NEWS-OS 3.0 version. ! 2: Copyright (C) 1987, 1989 Free Software Foundation, Inc. ! 3: ! 4: This file is part of GNU CC. ! 5: ! 6: GNU CC is free software; you can redistribute it and/or modify ! 7: it under the terms of the GNU General Public License as published by ! 8: the Free Software Foundation; either version 1, or (at your option) ! 9: any later version. ! 10: ! 11: GNU CC is distributed in the hope that it will be useful, ! 12: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 14: GNU General Public License for more details. ! 15: ! 16: You should have received a copy of the GNU General Public License ! 17: along with GNU CC; see the file COPYING. If not, write to ! 18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 19: ! 20: #ifndef USE_GAS ! 21: /* This controls conditionals in tm-m68k.h. */ ! 22: #define MOTOROLA ! 23: #define SONY_ASM ! 24: #endif ! 25: ! 26: #include "tm-m68k.h" ! 27: ! 28: /* See tm-m68k.h. 7 means 68020 with 68881. */ ! 29: ! 30: #define TARGET_DEFAULT 7 ! 31: ! 32: /* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified. ! 33: This will control the use of inline 68881 insns in certain macros. */ ! 34: ! 35: #define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}" ! 36: ! 37: /* Names to predefine in the preprocessor for this target machine. */ ! 38: /* These are the ones defined by Sony, plus mc68000 for uniformity with ! 39: GCC on other 68000 systems. */ ! 40: ! 41: #ifdef news700 ! 42: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews700" ! 43: #endif ! 44: #ifdef news800 ! 45: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews800" ! 46: #endif ! 47: #ifdef news900 ! 48: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews900" ! 49: #endif ! 50: #ifdef news1500 ! 51: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1500" ! 52: #endif ! 53: #ifdef news1700 ! 54: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1700" ! 55: #endif ! 56: #ifdef news1800 ! 57: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1800" ! 58: #endif ! 59: #ifdef news1900 ! 60: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1900" ! 61: #endif ! 62: ! 63: /* This is BSD, so it wants DBX format. */ ! 64: ! 65: #define DBX_DEBUGGING_INFO ! 66: ! 67: /* Override parts of tm-m68k.h to fit Sony's assembler syntax. */ ! 68: ! 69: #undef POINTER_BOUNDARY ! 70: #undef BIGGEST_ALIGNMENT ! 71: #undef CALL_USED_REGISTERS ! 72: #undef FUNCTION_VALUE ! 73: #undef LIBCALL_VALUE ! 74: #undef FUNCTION_PROFILER ! 75: ! 76: #ifdef MOTOROLA ! 77: #undef FUNCTION_PROLOGUE ! 78: #undef FUNCTION_EPILOGUE ! 79: #undef REGISTER_NAMES ! 80: #undef ASM_OUTPUT_REG_PUSH ! 81: #undef ASM_OUTPUT_REG_POP ! 82: #undef ASM_OUTPUT_DOUBLE ! 83: #undef ASM_OUTPUT_SKIP ! 84: #undef ASM_FORMAT_PRIVATE_NAME ! 85: #undef PRINT_OPERAND ! 86: #undef PRINT_OPERAND_ADDRESS ! 87: #endif ! 88: ! 89: #undef ASM_OUTPUT_ALIGN ! 90: ! 91: /* Allocation boundary (in *bits*) for storing pointers in memory. */ ! 92: #define POINTER_BOUNDARY 32 ! 93: ! 94: /* There is no point aligning anything to a rounder boundary than this. */ ! 95: #define BIGGEST_ALIGNMENT 32 ! 96: ! 97: /* A bitfield declared as `int' forces `int' alignment for the struct. */ ! 98: #define PCC_BITFIELD_TYPE_MATTERS ! 99: ! 100: /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */ ! 101: ! 102: #define CALL_USED_REGISTERS \ ! 103: {1, 1, 1, 1, 0, 0, 0, 0, \ ! 104: 1, 1, 0, 0, 0, 0, 0, 1, \ ! 105: 1, 1, 1, 1, 0, 0, 0, 0} ! 106: ! 107: /* NEWS returns floats and doubles in fp0, not d0/d1. */ ! 108: ! 109: #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) ! 110: ! 111: #define LIBCALL_VALUE(MODE) \ ! 112: gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0)) ! 113: ! 114: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 115: fprintf (FILE, "\t.align %d\n", (LOG)) ! 116: ! 117: #ifdef MOTOROLA ! 118: ! 119: /* Don't try to define `gcc_compiled.' since the assembler does not ! 120: accept symbols with periods. This is no real loss since GDB only ! 121: really needs it for parms passed in registers. */ ! 122: #define ASM_IDENTIFY_GCC(FILE) ! 123: ! 124: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 125: { register int regno; \ ! 126: register int mask = 0; \ ! 127: extern char call_used_regs[]; \ ! 128: int fsize = ((SIZE) + 3) & -4; \ ! 129: if (frame_pointer_needed) \ ! 130: { if (TARGET_68020 || fsize < 0x8000) \ ! 131: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \ ! 132: else \ ! 133: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \ ! 134: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 135: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 136: mask |= 1 << (regno - 16); \ ! 137: if (mask != 0) \ ! 138: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \ ! 139: mask = 0; \ ! 140: for (regno = 0; regno < 16; regno++) \ ! 141: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 142: mask |= 1 << (15 - regno); \ ! 143: if (frame_pointer_needed) \ ! 144: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ ! 145: if (exact_log2 (mask) >= 0) \ ! 146: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ ! 147: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); } ! 148: ! 149: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 150: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 151: ! 152: #define FUNCTION_EPILOGUE(FILE, SIZE) \ ! 153: { register int regno; \ ! 154: register int mask, fmask; \ ! 155: register int nregs; \ ! 156: int offset, foffset; \ ! 157: extern char call_used_regs[]; \ ! 158: extern int current_function_pops_args; \ ! 159: extern int current_function_args_size; \ ! 160: int fsize = ((SIZE) + 3) & -4; \ ! 161: int big = 0; \ ! 162: nregs = 0; fmask = 0; \ ! 163: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 164: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 165: { nregs++; fmask |= 1 << (23 - regno); } \ ! 166: foffset = nregs * 12; \ ! 167: nregs = 0; mask = 0; \ ! 168: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ ! 169: for (regno = 0; regno < 16; regno++) \ ! 170: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 171: { nregs++; mask |= 1 << regno; } \ ! 172: offset = foffset + nregs * 4; \ ! 173: if (offset + fsize >= 0x8000 \ ! 174: && frame_pointer_needed \ ! 175: && (mask || fmask)) \ ! 176: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \ ! 177: fsize = 0, big = 1; } \ ! 178: if (exact_log2 (mask) >= 0) { \ ! 179: if (big) \ ! 180: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \ ! 181: offset + fsize, reg_names[exact_log2 (mask)]); \ ! 182: else if (! frame_pointer_needed) \ ! 183: fprintf (FILE, "\tmove.l (sp)+,%s\n", \ ! 184: reg_names[exact_log2 (mask)]); \ ! 185: else \ ! 186: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \ ! 187: offset + fsize, reg_names[exact_log2 (mask)]); } \ ! 188: else if (mask) { \ ! 189: if (big) \ ! 190: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \ ! 191: offset + fsize, mask); \ ! 192: else if (! frame_pointer_needed) \ ! 193: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \ ! 194: else \ ! 195: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \ ! 196: offset + fsize, mask); } \ ! 197: if (fmask) { \ ! 198: if (big) \ ! 199: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \ ! 200: foffset + fsize, fmask); \ ! 201: else if (! frame_pointer_needed) \ ! 202: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \ ! 203: else \ ! 204: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \ ! 205: foffset + fsize, fmask); } \ ! 206: if (frame_pointer_needed) \ ! 207: fprintf (FILE, "\tunlk fp\n"); \ ! 208: if (current_function_pops_args && current_function_args_size) \ ! 209: fprintf (FILE, "\trtd #%d\n", current_function_args_size); \ ! 210: else fprintf (FILE, "\trts\n"); } ! 211: ! 212: /* Difference from tm-m68k.h is in `fp' instead of `a6'. */ ! 213: ! 214: #define REGISTER_NAMES \ ! 215: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \ ! 216: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \ ! 217: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"} ! 218: ! 219: /* This is how to output an insn to push a register on the stack. ! 220: It need not be very fast code. */ ! 221: ! 222: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 223: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO]) ! 224: ! 225: /* This is how to output an insn to pop a register from the stack. ! 226: It need not be very fast code. */ ! 227: ! 228: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 229: fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO]) ! 230: ! 231: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 232: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE)) ! 233: ! 234: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 235: fprintf (FILE, "\t.space %d\n", (SIZE)) ! 236: ! 237: /* Store in OUTPUT a string (made with alloca) containing ! 238: an assembler-name for a local static variable named NAME. ! 239: LABELNO is an integer which is different for each call. */ ! 240: ! 241: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 242: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \ ! 243: sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO))) ! 244: ! 245: #define PRINT_OPERAND(FILE, X, CODE) \ ! 246: { if (CODE == '.') fprintf (FILE, "."); \ ! 247: else if (CODE == '#') fprintf (FILE, "#"); \ ! 248: else if (CODE == '-') fprintf (FILE, "-(sp)"); \ ! 249: else if (CODE == '+') fprintf (FILE, "(sp)+"); \ ! 250: else if (CODE == '@') fprintf (FILE, "(sp)"); \ ! 251: else if (CODE == '!') fprintf (FILE, "ccr"); \ ! 252: else if (GET_CODE (X) == REG) \ ! 253: fprintf (FILE, "%s", reg_names[REGNO (X)]); \ ! 254: else if (GET_CODE (X) == MEM) \ ! 255: output_address (XEXP (X, 0)); \ ! 256: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ ! 257: { union { double d; int i[2]; } u; \ ! 258: union { float f; int i; } u1; \ ! 259: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 260: u1.f = u.d; \ ! 261: if (CODE == 'f') \ ! 262: fprintf (FILE, "#0f%.9e", u1.f); \ ! 263: else \ ! 264: fprintf (FILE, "#0x%x", u1.i); } \ ! 265: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ ! 266: { union { double d; int i[2]; } u; \ ! 267: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 268: fprintf (FILE, "#0d%.20e", u.d); } \ ! 269: else if (CODE == 'b') output_addr_const (FILE, X); \ ! 270: else { putc ('#', FILE); output_addr_const (FILE, X); }} ! 271: ! 272: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 273: { register rtx reg1, reg2, breg, ireg; \ ! 274: register rtx addr = ADDR; \ ! 275: rtx offset; \ ! 276: switch (GET_CODE (addr)) \ ! 277: { \ ! 278: case REG: \ ! 279: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ ! 280: break; \ ! 281: case PRE_DEC: \ ! 282: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ ! 283: break; \ ! 284: case POST_INC: \ ! 285: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ ! 286: break; \ ! 287: case PLUS: \ ! 288: reg1 = 0; reg2 = 0; \ ! 289: ireg = 0; breg = 0; \ ! 290: offset = 0; \ ! 291: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ ! 292: { \ ! 293: offset = XEXP (addr, 0); \ ! 294: addr = XEXP (addr, 1); \ ! 295: } \ ! 296: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ ! 297: { \ ! 298: offset = XEXP (addr, 1); \ ! 299: addr = XEXP (addr, 0); \ ! 300: } \ ! 301: if (GET_CODE (addr) != PLUS) ; \ ! 302: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ ! 303: { \ ! 304: reg1 = XEXP (addr, 0); \ ! 305: addr = XEXP (addr, 1); \ ! 306: } \ ! 307: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ ! 308: { \ ! 309: reg1 = XEXP (addr, 1); \ ! 310: addr = XEXP (addr, 0); \ ! 311: } \ ! 312: else if (GET_CODE (XEXP (addr, 0)) == MULT) \ ! 313: { \ ! 314: reg1 = XEXP (addr, 0); \ ! 315: addr = XEXP (addr, 1); \ ! 316: } \ ! 317: else if (GET_CODE (XEXP (addr, 1)) == MULT) \ ! 318: { \ ! 319: reg1 = XEXP (addr, 1); \ ! 320: addr = XEXP (addr, 0); \ ! 321: } \ ! 322: else if (GET_CODE (XEXP (addr, 0)) == REG) \ ! 323: { \ ! 324: reg1 = XEXP (addr, 0); \ ! 325: addr = XEXP (addr, 1); \ ! 326: } \ ! 327: else if (GET_CODE (XEXP (addr, 1)) == REG) \ ! 328: { \ ! 329: reg1 = XEXP (addr, 1); \ ! 330: addr = XEXP (addr, 0); \ ! 331: } \ ! 332: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ ! 333: || GET_CODE (addr) == SIGN_EXTEND) \ ! 334: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ ! 335: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ ! 336: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ ! 337: || GET_CODE (reg1) == MULT)) \ ! 338: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ ! 339: { breg = reg2; ireg = reg1; } \ ! 340: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ ! 341: { breg = reg1; ireg = reg2; } \ ! 342: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 343: { int scale = 1; \ ! 344: if (GET_CODE (ireg) == MULT) \ ! 345: { scale = INTVAL (XEXP (ireg, 1)); \ ! 346: ireg = XEXP (ireg, 0); } \ ! 347: if (GET_CODE (ireg) == SIGN_EXTEND) \ ! 348: fprintf (FILE, "(L%d.b,pc,%s.w", \ ! 349: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 350: reg_names[REGNO (XEXP (ireg, 0))]); \ ! 351: else \ ! 352: fprintf (FILE, "(L%d.b,pc,%s.l", \ ! 353: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 354: reg_names[REGNO (ireg)]); \ ! 355: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 356: putc (')', FILE); \ ! 357: break; } \ ! 358: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 359: { fprintf (FILE, "(L%d.b,pc,%s.l", \ ! 360: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 361: reg_names[REGNO (breg)]); \ ! 362: putc (')', FILE); \ ! 363: break; } \ ! 364: if (ireg != 0 || breg != 0) \ ! 365: { int scale = 1; \ ! 366: if (breg == 0) \ ! 367: abort (); \ ! 368: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \ ! 369: fprintf (FILE, "("); \ ! 370: if (addr != 0) { \ ! 371: output_addr_const (FILE, addr); \ ! 372: putc (',', FILE); } \ ! 373: fprintf (FILE, "%s", reg_names[REGNO (breg)]); \ ! 374: if (ireg != 0) \ ! 375: putc (',', FILE); \ ! 376: if (ireg != 0 && GET_CODE (ireg) == MULT) \ ! 377: { scale = INTVAL (XEXP (ireg, 1)); \ ! 378: ireg = XEXP (ireg, 0); } \ ! 379: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ ! 380: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ ! 381: else if (ireg != 0) \ ! 382: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ ! 383: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 384: putc (')', FILE); \ ! 385: break; \ ! 386: } \ ! 387: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ ! 388: { fprintf (FILE, "(L%d.b,pc,%s:l)", \ ! 389: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 390: reg_names[REGNO (reg1)]); \ ! 391: break; } \ ! 392: default: \ ! 393: if (GET_CODE (addr) == CONST_INT \ ! 394: && INTVAL (addr) < 0x8000 \ ! 395: && INTVAL (addr) >= -0x8000) \ ! 396: fprintf (FILE, "%d.w", INTVAL (addr)); \ ! 397: else \ ! 398: output_addr_const (FILE, addr); \ ! 399: }} ! 400: ! 401: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */ ! 402: ! 403: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 404: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 405: ! 406: #endif /* MOTOROLA */
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