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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 2, 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 m68k.h. */ ! 22: #define MOTOROLA /* Use Motorola syntax rather than "MIT" */ ! 23: #define SGS_NO_LI /* Suppress jump table label usage */ ! 24: #endif ! 25: ! 26: #include "m68k.h" ! 27: ! 28: /* See 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: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews700" ! 42: ! 43: /* These conditionals tested for different submodels, ! 44: but they were incorrect since they tested the host rather than the target. ! 45: The choice of model shouldn't actually matter. */ ! 46: ! 47: #if 0 ! 48: #ifdef news800 ! 49: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews800" ! 50: #endif ! 51: #ifdef news900 ! 52: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews900" ! 53: #endif ! 54: #ifdef news1500 ! 55: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1500" ! 56: #endif ! 57: #ifdef news1700 ! 58: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1700" ! 59: #endif ! 60: #ifdef news1800 ! 61: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1800" ! 62: #endif ! 63: #ifdef news1900 ! 64: #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1900" ! 65: #endif ! 66: #endif ! 67: ! 68: /* Link with libg.a when debugging, for dbx's sake. */ ! 69: ! 70: #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} " ! 71: ! 72: /* This is BSD, so it wants DBX format. */ ! 73: ! 74: #define DBX_DEBUGGING_INFO ! 75: ! 76: #if 0 ! 77: /* This is to be compatible with types.h. ! 78: It was found to be necessary with Newsos 3. */ ! 79: ! 80: #define SIZE_TYPE "long int" ! 81: #endif ! 82: ! 83: /* Override parts of m68k.h to fit Sony's assembler syntax. */ ! 84: ! 85: #undef BIGGEST_ALIGNMENT ! 86: #undef CALL_USED_REGISTERS ! 87: #undef FUNCTION_VALUE ! 88: #undef LIBCALL_VALUE ! 89: #undef FUNCTION_PROFILER ! 90: ! 91: #ifdef MOTOROLA ! 92: #undef FUNCTION_PROLOGUE ! 93: #undef FUNCTION_EPILOGUE ! 94: #undef REGISTER_NAMES ! 95: #undef ASM_OUTPUT_REG_PUSH ! 96: #undef ASM_OUTPUT_REG_POP ! 97: #undef ASM_OUTPUT_DOUBLE ! 98: #undef ASM_OUTPUT_SKIP ! 99: #undef ASM_FORMAT_PRIVATE_NAME ! 100: #undef PRINT_OPERAND ! 101: #undef PRINT_OPERAND_ADDRESS ! 102: #endif ! 103: ! 104: #undef ASM_OUTPUT_ALIGN ! 105: ! 106: /* There is no point aligning anything to a rounder boundary than this. */ ! 107: #define BIGGEST_ALIGNMENT 32 ! 108: ! 109: /* A bitfield declared as `int' forces `int' alignment for the struct. */ ! 110: #define PCC_BITFIELD_TYPE_MATTERS 1 ! 111: ! 112: /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */ ! 113: ! 114: #define CALL_USED_REGISTERS \ ! 115: {1, 1, 1, 1, 0, 0, 0, 0, \ ! 116: 1, 1, 0, 0, 0, 0, 0, 1, \ ! 117: 1, 1, 1, 1, 0, 0, 0, 0} ! 118: ! 119: /* NEWS returns floats and doubles in fp0, not d0/d1. */ ! 120: ! 121: #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) ! 122: ! 123: #define LIBCALL_VALUE(MODE) \ ! 124: gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0)) ! 125: ! 126: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 127: fprintf (FILE, "\t.align %d\n", (LOG)) ! 128: ! 129: #ifdef MOTOROLA ! 130: ! 131: /* Don't try to define `gcc_compiled.' since the assembler does not ! 132: accept symbols with periods. This is no real loss since GDB only ! 133: really needs it for parms passed in registers. */ ! 134: #define ASM_IDENTIFY_GCC(FILE) ! 135: ! 136: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 137: { register int regno; \ ! 138: register int mask = 0; \ ! 139: extern char call_used_regs[]; \ ! 140: int fsize = ((SIZE) + 3) & -4; \ ! 141: if (frame_pointer_needed) \ ! 142: { if (fsize < 0x8000) \ ! 143: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \ ! 144: else if (TARGET_68020) \ ! 145: fprintf (FILE, "\tlink.l fp,#%d\n", -fsize); \ ! 146: else \ ! 147: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \ ! 148: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 149: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 150: mask |= 1 << (regno - 16); \ ! 151: if (mask != 0) \ ! 152: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \ ! 153: mask = 0; \ ! 154: for (regno = 0; regno < 16; regno++) \ ! 155: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 156: mask |= 1 << (15 - regno); \ ! 157: if (frame_pointer_needed) \ ! 158: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ ! 159: if (exact_log2 (mask) >= 0) \ ! 160: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ ! 161: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); } ! 162: ! 163: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 164: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 165: ! 166: #define FUNCTION_EPILOGUE(FILE, SIZE) \ ! 167: { register int regno; \ ! 168: register int mask, fmask; \ ! 169: register int nregs; \ ! 170: int offset, foffset; \ ! 171: extern char call_used_regs[]; \ ! 172: int fsize = ((SIZE) + 3) & -4; \ ! 173: int big = 0; \ ! 174: nregs = 0; fmask = 0; \ ! 175: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 176: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 177: { nregs++; fmask |= 1 << (23 - regno); } \ ! 178: foffset = nregs * 12; \ ! 179: nregs = 0; mask = 0; \ ! 180: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ ! 181: for (regno = 0; regno < 16; regno++) \ ! 182: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 183: { nregs++; mask |= 1 << regno; } \ ! 184: offset = foffset + nregs * 4; \ ! 185: if (offset + fsize >= 0x8000 \ ! 186: && frame_pointer_needed \ ! 187: && (mask || fmask)) \ ! 188: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \ ! 189: fsize = 0, big = 1; } \ ! 190: if (exact_log2 (mask) >= 0) { \ ! 191: if (big) \ ! 192: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \ ! 193: offset + fsize, reg_names[exact_log2 (mask)]); \ ! 194: else if (! frame_pointer_needed) \ ! 195: fprintf (FILE, "\tmove.l (sp)+,%s\n", \ ! 196: reg_names[exact_log2 (mask)]); \ ! 197: else \ ! 198: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \ ! 199: offset + fsize, reg_names[exact_log2 (mask)]); } \ ! 200: else if (mask) { \ ! 201: if (big) \ ! 202: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \ ! 203: offset + fsize, mask); \ ! 204: else if (! frame_pointer_needed) \ ! 205: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \ ! 206: else \ ! 207: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \ ! 208: offset + fsize, mask); } \ ! 209: if (fmask) { \ ! 210: if (big) \ ! 211: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \ ! 212: foffset + fsize, fmask); \ ! 213: else if (! frame_pointer_needed) \ ! 214: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \ ! 215: else \ ! 216: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \ ! 217: foffset + fsize, fmask); } \ ! 218: if (frame_pointer_needed) \ ! 219: fprintf (FILE, "\tunlk fp\n"); \ ! 220: if (current_function_pops_args) \ ! 221: fprintf (FILE, "\trtd #%d\n", current_function_pops_args); \ ! 222: else fprintf (FILE, "\trts\n"); } ! 223: ! 224: /* Difference from m68k.h is in `fp' instead of `a6'. */ ! 225: ! 226: #define REGISTER_NAMES \ ! 227: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \ ! 228: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \ ! 229: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"} ! 230: ! 231: /* This is how to output an insn to push a register on the stack. ! 232: It need not be very fast code. */ ! 233: ! 234: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 235: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO]) ! 236: ! 237: /* This is how to output an insn to pop a register from the stack. ! 238: It need not be very fast code. */ ! 239: ! 240: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 241: fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO]) ! 242: ! 243: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 244: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE)) ! 245: ! 246: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 247: fprintf (FILE, "\t.space %u\n", (SIZE)) ! 248: ! 249: /* Store in OUTPUT a string (made with alloca) containing ! 250: an assembler-name for a local static variable named NAME. ! 251: LABELNO is an integer which is different for each call. */ ! 252: ! 253: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 254: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \ ! 255: sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO))) ! 256: ! 257: #define PRINT_OPERAND(FILE, X, CODE) \ ! 258: { if (CODE == '.') fprintf (FILE, "."); \ ! 259: else if (CODE == '#') fprintf (FILE, "#"); \ ! 260: else if (CODE == '-') fprintf (FILE, "-(sp)"); \ ! 261: else if (CODE == '+') fprintf (FILE, "(sp)+"); \ ! 262: else if (CODE == '@') fprintf (FILE, "(sp)"); \ ! 263: else if (CODE == '!') fprintf (FILE, "ccr"); \ ! 264: else if (CODE == '$') {if (TARGET_68040_ONLY) fprintf (FILE, "s");} \ ! 265: else if (CODE == '&') {if (TARGET_68040_ONLY) fprintf (FILE, "d");} \ ! 266: else if (GET_CODE (X) == REG) \ ! 267: fprintf (FILE, "%s", reg_names[REGNO (X)]); \ ! 268: else if (GET_CODE (X) == MEM) \ ! 269: output_address (XEXP (X, 0)); \ ! 270: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ ! 271: { union { double d; int i[2]; } u; \ ! 272: union { float f; int i; } u1; \ ! 273: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 274: u1.f = u.d; \ ! 275: if (CODE == 'f') \ ! 276: fprintf (FILE, "#0f%.9e", u1.f); \ ! 277: else \ ! 278: fprintf (FILE, "#0x%x", u1.i); } \ ! 279: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ ! 280: { union { double d; int i[2]; } u; \ ! 281: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 282: fprintf (FILE, "#0d%.20e", u.d); } \ ! 283: else if (CODE == 'b') output_addr_const (FILE, X); \ ! 284: else { putc ('#', FILE); output_addr_const (FILE, X); }} ! 285: ! 286: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 287: { register rtx reg1, reg2, breg, ireg; \ ! 288: register rtx addr = ADDR; \ ! 289: rtx offset; \ ! 290: switch (GET_CODE (addr)) \ ! 291: { \ ! 292: case REG: \ ! 293: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ ! 294: break; \ ! 295: case PRE_DEC: \ ! 296: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ ! 297: break; \ ! 298: case POST_INC: \ ! 299: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ ! 300: break; \ ! 301: case PLUS: \ ! 302: reg1 = 0; reg2 = 0; \ ! 303: ireg = 0; breg = 0; \ ! 304: offset = 0; \ ! 305: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ ! 306: { \ ! 307: offset = XEXP (addr, 0); \ ! 308: addr = XEXP (addr, 1); \ ! 309: } \ ! 310: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ ! 311: { \ ! 312: offset = XEXP (addr, 1); \ ! 313: addr = XEXP (addr, 0); \ ! 314: } \ ! 315: if (GET_CODE (addr) != PLUS) ; \ ! 316: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ ! 317: { \ ! 318: reg1 = XEXP (addr, 0); \ ! 319: addr = XEXP (addr, 1); \ ! 320: } \ ! 321: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ ! 322: { \ ! 323: reg1 = XEXP (addr, 1); \ ! 324: addr = XEXP (addr, 0); \ ! 325: } \ ! 326: else if (GET_CODE (XEXP (addr, 0)) == MULT) \ ! 327: { \ ! 328: reg1 = XEXP (addr, 0); \ ! 329: addr = XEXP (addr, 1); \ ! 330: } \ ! 331: else if (GET_CODE (XEXP (addr, 1)) == MULT) \ ! 332: { \ ! 333: reg1 = XEXP (addr, 1); \ ! 334: addr = XEXP (addr, 0); \ ! 335: } \ ! 336: else if (GET_CODE (XEXP (addr, 0)) == REG) \ ! 337: { \ ! 338: reg1 = XEXP (addr, 0); \ ! 339: addr = XEXP (addr, 1); \ ! 340: } \ ! 341: else if (GET_CODE (XEXP (addr, 1)) == REG) \ ! 342: { \ ! 343: reg1 = XEXP (addr, 1); \ ! 344: addr = XEXP (addr, 0); \ ! 345: } \ ! 346: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ ! 347: || GET_CODE (addr) == SIGN_EXTEND) \ ! 348: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ ! 349: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ ! 350: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ ! 351: || GET_CODE (reg1) == MULT)) \ ! 352: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ ! 353: { breg = reg2; ireg = reg1; } \ ! 354: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ ! 355: { breg = reg1; ireg = reg2; } \ ! 356: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 357: { int scale = 1; \ ! 358: if (GET_CODE (ireg) == MULT) \ ! 359: { scale = INTVAL (XEXP (ireg, 1)); \ ! 360: ireg = XEXP (ireg, 0); } \ ! 361: if (GET_CODE (ireg) == SIGN_EXTEND) \ ! 362: fprintf (FILE, "(L%d.b,pc,%s.w", \ ! 363: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 364: reg_names[REGNO (XEXP (ireg, 0))]); \ ! 365: else \ ! 366: fprintf (FILE, "(L%d.b,pc,%s.l", \ ! 367: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 368: reg_names[REGNO (ireg)]); \ ! 369: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 370: putc (')', FILE); \ ! 371: break; } \ ! 372: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 373: { fprintf (FILE, "(L%d.b,pc,%s.l", \ ! 374: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 375: reg_names[REGNO (breg)]); \ ! 376: putc (')', FILE); \ ! 377: break; } \ ! 378: if (ireg != 0 || breg != 0) \ ! 379: { int scale = 1; \ ! 380: if (breg == 0) \ ! 381: abort (); \ ! 382: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \ ! 383: fprintf (FILE, "("); \ ! 384: if (addr != 0) { \ ! 385: output_addr_const (FILE, addr); \ ! 386: putc (',', FILE); } \ ! 387: fprintf (FILE, "%s", reg_names[REGNO (breg)]); \ ! 388: if (ireg != 0) \ ! 389: putc (',', FILE); \ ! 390: if (ireg != 0 && GET_CODE (ireg) == MULT) \ ! 391: { scale = INTVAL (XEXP (ireg, 1)); \ ! 392: ireg = XEXP (ireg, 0); } \ ! 393: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ ! 394: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ ! 395: else if (ireg != 0) \ ! 396: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ ! 397: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 398: putc (')', FILE); \ ! 399: break; \ ! 400: } \ ! 401: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ ! 402: { fprintf (FILE, "(L%d.b,pc,%s.l)", \ ! 403: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 404: reg_names[REGNO (reg1)]); \ ! 405: break; } \ ! 406: default: \ ! 407: if (GET_CODE (addr) == CONST_INT \ ! 408: && INTVAL (addr) < 0x8000 \ ! 409: && INTVAL (addr) >= -0x8000) \ ! 410: fprintf (FILE, "%d.w", INTVAL (addr)); \ ! 411: else \ ! 412: output_addr_const (FILE, addr); \ ! 413: }} ! 414: ! 415: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */ ! 416: ! 417: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 418: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 419: ! 420: #endif /* MOTOROLA */
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