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1.1 ! root 1: /* Definitions of target machine for GNU compiler. ! 2: Charles River Data Systems UNiverse/32 ! 3: ! 4: Written by Gary E. Miller ! 5: bug reports to [email protected] ! 6: ! 7: Copyright (C) 1987, 1993 Free Software Foundation, Inc. ! 8: ! 9: This file is part of GNU CC. ! 10: ! 11: GNU CC is free software; you can redistribute it and/or modify ! 12: it under the terms of the GNU General Public License as published by ! 13: the Free Software Foundation; either version 2, or (at your option) ! 14: any later version. ! 15: ! 16: GNU CC is distributed in the hope that it will be useful, ! 17: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 18: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 19: GNU General Public License for more details. ! 20: ! 21: You should have received a copy of the GNU General Public License ! 22: along with GNU CC; see the file COPYING. If not, write to ! 23: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 24: ! 25: #define MOTOROLA /* Use Motorola syntax rather than "MIT" */ ! 26: #define SGS /* Uses SGS assembler */ ! 27: #define SGS_SWITCH_TABLES /* Different switch table handling */ ! 28: #define CRDS /* Charles River Data Systems assembler */ ! 29: ! 30: #include "m68k/m68k.h" ! 31: ! 32: /* Without STRUCTURE_SIZE_BOUNDARY, we can't ensure that structures are ! 33: aligned such that we can correctly extract bitfields from them. ! 34: Someone should check whether the usual compiler on the crds machine ! 35: provides the equivalent behavior of STRUCTURE_SIZE_BOUNDARY. */ ! 36: #error This does not define STRUCTURE_SIZE_BOUNDARY ! 37: ! 38: /* See m68k.h. 0 means 680[01]0 with no 68881. */ ! 39: ! 40: #undef TARGET_DEFAULT ! 41: #define TARGET_DEFAULT 0 ! 42: ! 43: /* Don't try using XFmode. */ ! 44: #undef LONG_DOUBLE_TYPE_SIZE ! 45: #define LONG_DOUBLE_TYPE_SIZE 64 ! 46: ! 47: /* special flags to the unos assembler. */ ! 48: ! 49: #undef ASM_SPEC ! 50: #define ASM_SPEC "-g" ! 51: ! 52: #undef LIB_SPEC ! 53: #define LIB_SPEC "%{!p:%{!pg:-lunos}}%{p:-lc_p}%{pg:-lc_p}" ! 54: ! 55: #undef STARTFILE_SPEC ! 56: #define STARTFILE_SPEC \ ! 57: "%{pg:gcrt0.o%s}%{!pg:%{p:mc68rt0.o%s}%{!p:c68rt0.o%s}}" ! 58: ! 59: /* CC1 spec */ ! 60: #if 0 ! 61: /* c.sac only used in _s_call_r() in libunos.a and malloc() in libmalloc.a */ ! 62: /* so we do not need to bother ! */ ! 63: #define CC1_SPEC "-fpcc-struct-return" ! 64: #endif ! 65: ! 66: /* -O2 for MAX optimization */ ! 67: #undef CC1_SPEC ! 68: #define CC1_SPEC "%{O2:-fstrength-reduce}" ! 69: ! 70: /* cpp has to support a #sccs directive for the /usr/include files */ ! 71: ! 72: #define SCCS_DIRECTIVE ! 73: ! 74: /* Make output for SDB. */ ! 75: ! 76: /* #define SDB_DEBUGGING_INFO UNOS casm has no debugging :-( */ ! 77: ! 78: /* UNOS has vprintf() */ ! 79: ! 80: #define HAVE_VPRINTF ! 81: ! 82: /* UNOS need stack probe :-( */ ! 83: ! 84: #define HAVE_probe 1 ! 85: #define gen_probe() gen_rtx(ASM_INPUT, VOIDmode, "tstb -2048(sp)\t;probe\n") ! 86: ! 87: /* use memcpy, memset instead of bcopy, etc. */ ! 88: ! 89: #define TARGET_MEM_FUNCTIONS ! 90: ! 91: /* Don't try to define `gcc_compiled.' since the assembler might not ! 92: accept symbols with periods and GDB doesn't run on this machine anyway. */ ! 93: #define ASM_IDENTIFY_GCC(FILE) ! 94: ! 95: /* Define __HAVE_68881__ in preprocessor if -m68881 is specified. ! 96: This will control the use of inline 68881 insns in certain macros. */ ! 97: ! 98: #undef CPP_SPEC ! 99: #define CPP_SPEC "%{m68881:-D__HAVE_68881__}" ! 100: ! 101: /* Names to predefine in the preprocessor for this target machine. */ ! 102: ! 103: #undef CPP_PREDEFINES ! 104: #define CPP_PREDEFINES "-Dmc68k -DM68000 -Dmc68000 -Dunos -Dunix -D__motorola__ -Asystem(unix) -Acpu(m68k) -Amachine(m68k)" ! 105: ! 106: /* Register in which address to store a structure value ! 107: is passed to a function. */ ! 108: /* unos uses ".comm c.sac" returns &c.sac in d0 */ ! 109: /* make pointer to c.sac ? ! 110: #undef STRUCT_VALUE_REGNUM ! 111: #define STRUCT_VALUE gen_rtx(MEM, Pmode, gen_rtx( , , ) ) ! 112: */ ! 113: ! 114: #define EXTRA_SECTIONS in_bss ! 115: ! 116: #define EXTRA_SECTION_FUNCTIONS \ ! 117: void \ ! 118: bss_section () \ ! 119: { \ ! 120: if (in_section != in_bss) \ ! 121: { \ ! 122: fprintf (asm_out_file, ".bss\n"); \ ! 123: in_section = in_bss; \ ! 124: } \ ! 125: } ! 126: ! 127: /* Specify how to pad function arguments. ! 128: Value should be `upward', `downward' or `none'. ! 129: Same as the default, except no padding for large or variable-size args. */ ! 130: ! 131: #define FUNCTION_ARG_PADDING(MODE, TYPE) \ ! 132: (((MODE) == BLKmode \ ! 133: ? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \ ! 134: && int_size_in_bytes (TYPE) < PARM_BOUNDARY / BITS_PER_UNIT) \ ! 135: : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \ ! 136: ? downward : none) ! 137: ! 138: /* Override part of the obstack macros. */ ! 139: ! 140: #define __PTR_TO_INT(P) ((int)(P)) ! 141: #define __INT_TO_PTR(P) ((char *)(P)) ! 142: ! 143: /* Override parts of m68k.h to fit the CRuDS assembler. */ ! 144: ! 145: #undef TARGET_VERSION ! 146: #define TARGET_VERSION fprintf (stderr, " (68k, CRDS/UNOS)"); ! 147: ! 148: /* Specify extra dir to search for include files. */ ! 149: #define SYSTEM_INCLUDE_DIR "/include" ! 150: ! 151: /* Control the assembler format that we output. */ ! 152: ! 153: /* Output at beginning of assembler file. */ ! 154: ! 155: #undef ASM_FILE_START ! 156: #define ASM_FILE_START(FILE) \ ! 157: fprintf (FILE, ";#NO_APP\n"); ! 158: ! 159: /* Output to assembler file text saying following lines ! 160: may contain character constants, extra white space, comments, etc. */ ! 161: ! 162: #undef ASM_APP_ON ! 163: #define ASM_APP_ON ";#APP\n" ! 164: ! 165: /* Output to assembler file text saying following lines ! 166: no longer contain unusual constructs. */ ! 167: ! 168: #undef ASM_APP_OFF ! 169: #define ASM_APP_OFF ";#NO_APP\n" ! 170: ! 171: /* This is how to output an assembler line defining a `double' constant. */ ! 172: ! 173: #undef ASM_OUTPUT_DOUBLE ! 174: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 175: do { long l[2]; \ ! 176: REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \ ! 177: fprintf (FILE, "\t.long 0x%x, 0x%x\n", l[0], l[1]); \ ! 178: } while (0) ! 179: ! 180: /*unos has no .skip :-( */ ! 181: #undef ASM_OUTPUT_SKIP ! 182: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 183: fprintf (FILE, "\t. = . + %u\n", (SIZE)); ! 184: ! 185: /* This says how to output an assembler line ! 186: to define a local common symbol. */ ! 187: /* should use bss_section instead of data_section but this makes casm die ? */ ! 188: ! 189: #undef ASM_OUTPUT_LOCAL ! 190: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ ! 191: { data_section (); \ ! 192: if ((SIZE) > 1) fprintf (FILE, "\t.even\n"); \ ! 193: assemble_name ((FILE), (NAME)); \ ! 194: fprintf ((FILE), ":\t. = . + %u\n", (ROUNDED));} ! 195: ! 196: /* This is how to output an insn to push a register on the stack. ! 197: It need not be very fast code. */ ! 198: ! 199: #undef ASM_OUTPUT_REG_PUSH ! 200: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 201: fprintf (FILE, "\tmovel %s,-(sp)\n", reg_names[REGNO]) ! 202: ! 203: /* This is how to output an insn to pop a register from the stack. ! 204: It need not be very fast code. */ ! 205: ! 206: #undef ASM_OUTPUT_REG_POP ! 207: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 208: fprintf (FILE, "\tmovel (sp)+,%s\n", reg_names[REGNO]) ! 209: ! 210: #undef ASM_OUTPUT_ASCII ! 211: #define ASM_OUTPUT_ASCII(FILE, P , SIZE) \ ! 212: { int i; \ ! 213: fprintf ((FILE), "\t.ascii \""); \ ! 214: for (i = 0; i < (SIZE); i++) \ ! 215: { \ ! 216: register int c = (P)[i]; \ ! 217: if (i != 0 && (i / 200) * 200 == i) \ ! 218: fprintf ((FILE), "\"\n\t.ascii \""); \ ! 219: if (c >= ' ' && c < 0177) { \ ! 220: if (c != '\"' && c != '\\') { \ ! 221: putc (c, (FILE)); \ ! 222: continue; \ ! 223: } \ ! 224: } \ ! 225: /* brain dead asm doesn't understand char escapes */ \ ! 226: fprintf ((FILE), "\"\n\t.byte\t%d\n\t.ascii \"", c); \ ! 227: } \ ! 228: fprintf ((FILE), "\"\n"); \ ! 229: } ! 230: ! 231: ! 232: /* Change all JBxx to Bxx. Also change all DBRA to DBF. ! 233: Also change divs.l, etc., to divs, etc. But don't change divsl.l. */ ! 234: ! 235: #define ASM_OUTPUT_OPCODE(FILE, PTR) \ ! 236: { if ((PTR)[0] == 'j' && (PTR)[1] == 'b') \ ! 237: { ++(PTR); } \ ! 238: else if ((PTR)[0] == 'd') \ ! 239: { \ ! 240: if (!strncmp ((PTR), "dbra", 4)) \ ! 241: { fprintf ((FILE), "dbf"); (PTR) += 4; } \ ! 242: else if (!strncmp ((PTR), "div", 3) && (PTR)[5] == ' ') \ ! 243: { fprintf ((FILE), "div%c", (PTR)[3]); (PTR) += 6; } \ ! 244: } \ ! 245: } ! 246: ! 247: ! 248: /* Print operand X (an rtx) in assembler syntax to file FILE. ! 249: CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. ! 250: For `%' followed by punctuation, CODE is the punctuation and X is null. ! 251: ! 252: On the 68000, we use several CODE characters: ! 253: '.' for dot needed in Motorola-style opcode names. ! 254: '-' for an operand pushing on the stack: ! 255: sp@-, -(sp) or -(%sp) depending on the style of syntax. ! 256: '+' for an operand pushing on the stack: ! 257: sp@+, (sp)+ or (%sp)+ depending on the style of syntax. ! 258: '@' for a reference to the top word on the stack: ! 259: sp@, (sp) or (%sp) depending on the style of syntax. ! 260: '#' for an immediate operand prefix (# in MIT and Motorola syntax ! 261: but & in SGS syntax, $ in unos syntax). ! 262: '!' for the fpcr register (used in some float-to-fixed conversions). ! 263: ! 264: 'b' for byte insn (no effect, on the Sun; this is for the ISI). ! 265: 'd' to force memory addressing to be absolute, not relative. ! 266: 'f' for float insn (print a CONST_DOUBLE as a float rather than in hex) ! 267: 'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather ! 268: than directly). Second part of 'y' below. ! 269: 'x' for float insn (print a CONST_DOUBLE as a float rather than in hex), ! 270: or print pair of registers as rx:ry. ! 271: 'y' for a FPA insn (print pair of registers as rx:ry). This also outputs ! 272: CONST_DOUBLE's as SunFPA constant RAM registers if ! 273: possible, so it should not be used except for the SunFPA. */ ! 274: ! 275: #undef PRINT_OPERAND_PUNCT_VALID_P ! 276: #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ ! 277: ((CODE) == '.' || (CODE) == '#' || (CODE) == '-' \ ! 278: || (CODE) == '+' || (CODE) == '@' || (CODE) == '!') ! 279: ! 280: #undef PRINT_OPERAND ! 281: #define PRINT_OPERAND(FILE, X, CODE) \ ! 282: { int i; \ ! 283: if (CODE == '.') ; \ ! 284: else if (CODE == '#') fprintf (FILE, "$"); \ ! 285: else if (CODE == '-') fprintf (FILE, "-(sp)"); \ ! 286: else if (CODE == '+') fprintf (FILE, "(sp)+"); \ ! 287: else if (CODE == '@') fprintf (FILE, "(sp)"); \ ! 288: else if (CODE == '!') fprintf (FILE, "fpcr"); \ ! 289: else if (CODE == '/') \ ! 290: ; \ ! 291: else if (GET_CODE (X) == REG) \ ! 292: { if (REGNO (X) < 16 && (CODE == 'y' || CODE == 'x') && GET_MODE (X) == DFmode) \ ! 293: fprintf (FILE, "%s:%s", reg_names[REGNO (X)], reg_names[REGNO (X)+1]); \ ! 294: else \ ! 295: fprintf (FILE, "%s", reg_names[REGNO (X)]); \ ! 296: } \ ! 297: else if (GET_CODE (X) == MEM) \ ! 298: { \ ! 299: output_address (XEXP (X, 0)); \ ! 300: if (CODE == 'd' && ! TARGET_68020 \ ! 301: && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ ! 302: /* fprintf (FILE, ".l") */; \ ! 303: } \ ! 304: else if ((CODE == 'y' || CODE == 'w') \ ! 305: && GET_CODE(X) == CONST_DOUBLE \ ! 306: && (i = standard_sun_fpa_constant_p (X))) \ ! 307: fprintf (FILE, "%%%d", i & 0x1ff); \ ! 308: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ ! 309: { REAL_VALUE_TYPE r; long l; \ ! 310: REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ ! 311: if (CODE == 'f') \ ! 312: ASM_OUTPUT_FLOAT_OPERAND (CODE, FILE, r); \ ! 313: else \ ! 314: { REAL_VALUE_TO_TARGET_SINGLE (r, l); \ ! 315: fprintf (FILE, "$0x%x", l); } } \ ! 316: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == XFmode) \ ! 317: { REAL_VALUE_TYPE r; \ ! 318: REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ ! 319: ASM_OUTPUT_LONG_DOUBLE_OPERAND (FILE, r); } \ ! 320: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ ! 321: { REAL_VALUE_TYPE r; \ ! 322: REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ ! 323: ASM_OUTPUT_DOUBLE_OPERAND (FILE, r); } \ ! 324: else { putc ('$', FILE); output_addr_const (FILE, X); }} ! 325: ! 326: /* Note that this contains a kludge that knows that the only reason ! 327: we have an address (plus (label_ref...) (reg...)) ! 328: is in the insn before a tablejump, and we know that m68k.md ! 329: generates a label LInnn: on such an insn. */ ! 330: #undef PRINT_OPERAND_ADDRESS ! 331: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 332: { register rtx reg1, reg2, breg, ireg; \ ! 333: register rtx addr = ADDR; \ ! 334: rtx offset; \ ! 335: switch (GET_CODE (addr)) \ ! 336: { \ ! 337: case REG: \ ! 338: fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ ! 339: break; \ ! 340: case PRE_DEC: \ ! 341: fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ ! 342: break; \ ! 343: case POST_INC: \ ! 344: fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ ! 345: break; \ ! 346: case PLUS: \ ! 347: reg1 = 0; reg2 = 0; \ ! 348: ireg = 0; breg = 0; \ ! 349: offset = 0; \ ! 350: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ ! 351: { \ ! 352: offset = XEXP (addr, 0); \ ! 353: addr = XEXP (addr, 1); \ ! 354: } \ ! 355: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ ! 356: { \ ! 357: offset = XEXP (addr, 1); \ ! 358: addr = XEXP (addr, 0); \ ! 359: } \ ! 360: if (GET_CODE (addr) != PLUS) ; \ ! 361: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ ! 362: { \ ! 363: reg1 = XEXP (addr, 0); \ ! 364: addr = XEXP (addr, 1); \ ! 365: } \ ! 366: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ ! 367: { \ ! 368: reg1 = XEXP (addr, 1); \ ! 369: addr = XEXP (addr, 0); \ ! 370: } \ ! 371: else if (GET_CODE (XEXP (addr, 0)) == MULT) \ ! 372: { \ ! 373: reg1 = XEXP (addr, 0); \ ! 374: addr = XEXP (addr, 1); \ ! 375: } \ ! 376: else if (GET_CODE (XEXP (addr, 1)) == MULT) \ ! 377: { \ ! 378: reg1 = XEXP (addr, 1); \ ! 379: addr = XEXP (addr, 0); \ ! 380: } \ ! 381: else if (GET_CODE (XEXP (addr, 0)) == REG) \ ! 382: { \ ! 383: reg1 = XEXP (addr, 0); \ ! 384: addr = XEXP (addr, 1); \ ! 385: } \ ! 386: else if (GET_CODE (XEXP (addr, 1)) == REG) \ ! 387: { \ ! 388: reg1 = XEXP (addr, 1); \ ! 389: addr = XEXP (addr, 0); \ ! 390: } \ ! 391: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ ! 392: || GET_CODE (addr) == SIGN_EXTEND) \ ! 393: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ ! 394: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ ! 395: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ ! 396: || GET_CODE (reg1) == MULT)) \ ! 397: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ ! 398: { breg = reg2; ireg = reg1; } \ ! 399: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ ! 400: { breg = reg1; ireg = reg2; } \ ! 401: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 402: { int scale = 1; \ ! 403: if (GET_CODE (ireg) == MULT) \ ! 404: { scale = INTVAL (XEXP (ireg, 1)); \ ! 405: ireg = XEXP (ireg, 0); } \ ! 406: if (GET_CODE (ireg) == SIGN_EXTEND) \ ! 407: fprintf (FILE, "L%d-LI%d-2(pc,%s.w", \ ! 408: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 409: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 410: reg_names[REGNO (XEXP (ireg, 0))]); \ ! 411: else \ ! 412: fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \ ! 413: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 414: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 415: reg_names[REGNO (ireg)]); \ ! 416: if (scale != 1) fprintf (FILE, ":%d", scale); \ ! 417: putc (')', FILE); \ ! 418: break; } \ ! 419: if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 420: { fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \ ! 421: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 422: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 423: reg_names[REGNO (breg)]); \ ! 424: putc (')', FILE); \ ! 425: break; } \ ! 426: if (ireg != 0 || breg != 0) \ ! 427: { int scale = 1; \ ! 428: if (breg == 0) \ ! 429: abort (); \ ! 430: if (addr && GET_CODE (addr) == LABEL_REF) abort (); \ ! 431: if (addr != 0) \ ! 432: output_addr_const (FILE, addr); \ ! 433: fprintf (FILE, "(%s", reg_names[REGNO (breg)]); \ ! 434: if (breg != 0 && ireg != 0) \ ! 435: putc (',', FILE); \ ! 436: if (ireg != 0 && GET_CODE (ireg) == MULT) \ ! 437: { scale = INTVAL (XEXP (ireg, 1)); \ ! 438: ireg = XEXP (ireg, 0); } \ ! 439: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ ! 440: fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ ! 441: else if (ireg != 0) \ ! 442: fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ ! 443: if (scale != 1) fprintf (FILE, ":%d", scale); \ ! 444: putc (')', FILE); \ ! 445: break; \ ! 446: } \ ! 447: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ ! 448: { fprintf (FILE, "L%d-LI%d-2(pc,%s.l)", \ ! 449: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 450: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 451: reg_names[REGNO (reg1)]); \ ! 452: break; } \ ! 453: default: \ ! 454: if (GET_CODE (addr) == CONST_INT \ ! 455: && INTVAL (addr) < 0x8000 \ ! 456: && INTVAL (addr) >= -0x8000) \ ! 457: fprintf (FILE, "%d", INTVAL (addr)); \ ! 458: else \ ! 459: output_addr_const (FILE, addr); \ ! 460: }} ! 461: ! 462: #define ASM_OUTPUT_SOURCE_FILENAME(FILE, FILENAME) \ ! 463: do { fprintf (FILE, "\t; file\t"); \ ! 464: output_quoted_string (FILE, FILENAME); \ ! 465: fprintf (FILE, "\n"); \ ! 466: } while (0) ! 467: ! 468: #define ASM_OUTPUT_SOURCE_LINE(FILE, LINENO) \ ! 469: fprintf (FILE, "\t; ln\t%d\n", \ ! 470: (sdb_begin_function_line \ ! 471: ? last_linenum - sdb_begin_function_line : 1)) ! 472: ! 473: /* This macro generates the assembly code for function entry. ! 474: FILE is a stdio stream to output the code to. ! 475: SIZE is an int: how many units of temporary storage to allocate. ! 476: Refer to the array `regs_ever_live' to determine which registers ! 477: to save; `regs_ever_live[I]' is nonzero if register number I ! 478: is ever used in the function. This macro is responsible for ! 479: knowing which registers should not be saved even if used. */ ! 480: ! 481: /* Note that the order of the bit mask for fmovem is the opposite ! 482: of the order for movem! */ ! 483: ! 484: #undef FUNCTION_PROLOGUE ! 485: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 486: { register int regno; \ ! 487: register int mask = 0; \ ! 488: extern char call_used_regs[]; \ ! 489: int fsize = ((SIZE) + 3) & -4; \ ! 490: /* unos stack probe */ \ ! 491: if ( fsize > 30000 ) { \ ! 492: fprintf (FILE, "\tmovel sp,a0\n"); \ ! 493: fprintf (FILE, "\taddl $-%d,a0\n", 2048 + fsize); \ ! 494: fprintf (FILE, "\ttstb (a0)\n"); \ ! 495: } else { \ ! 496: fprintf (FILE, "\ttstb -%d(sp)\n", 2048 + fsize); \ ! 497: } \ ! 498: if (frame_pointer_needed) \ ! 499: { if (TARGET_68020 || fsize < 0x8000) \ ! 500: fprintf (FILE, "\tlink a6,$%d\n", -fsize); \ ! 501: else \ ! 502: fprintf (FILE, "\tlink a6,$0\n\tsubl $%d,sp\n", fsize); } \ ! 503: for (regno = 24; regno < 56; regno++) \ ! 504: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 505: fprintf(FILE, "\tfpmoved %s, sp@-\n", \ ! 506: reg_names[regno]); \ ! 507: for (regno = 16; regno < 24; regno++) \ ! 508: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 509: mask |= 1 << (regno - 16); \ ! 510: if ((mask & 0xff) != 0) \ ! 511: fprintf (FILE, "\tfmovem $0x%x,-(sp)\n", mask & 0xff); \ ! 512: mask = 0; \ ! 513: for (regno = 0; regno < 16; regno++) \ ! 514: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 515: mask |= 1 << (15 - regno); \ ! 516: if (frame_pointer_needed) \ ! 517: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ ! 518: if (exact_log2 (mask) >= 0) \ ! 519: fprintf (FILE, "\tmovel %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ ! 520: else if (mask) fprintf (FILE, "\tmovem $0x%x,-(sp)\n", mask); } ! 521: ! 522: /* Must put address in %a0 , not %d0 . -- LGM, 7/15/88 */ ! 523: /* UNOS ?? */ ! 524: #undef FUNCTION_PROFILER ! 525: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 526: fprintf (FILE, "\tmovl &LP%%%d,%%a0\n\tjsr mcount\n", (LABEL_NO)) ! 527: ! 528: /* This macro generates the assembly code for function exit, ! 529: on machines that need it. If FUNCTION_EPILOGUE is not defined ! 530: then individual return instructions are generated for each ! 531: return statement. Args are same as for FUNCTION_PROLOGUE. ! 532: ! 533: The function epilogue should not depend on the current stack pointer! ! 534: It should use the frame pointer only. This is mandatory because ! 535: of alloca; we also take advantage of it to omit stack adjustments ! 536: before returning. */ ! 537: ! 538: #undef FUNCTION_EPILOGUE ! 539: #define FUNCTION_EPILOGUE(FILE, SIZE) \ ! 540: { register int regno; \ ! 541: register int mask, fmask; \ ! 542: register int nregs; \ ! 543: int offset, foffset, fpoffset; \ ! 544: extern char call_used_regs[]; \ ! 545: int fsize = ((SIZE) + 3) & -4; \ ! 546: int big = 0; \ ! 547: nregs = 0; fmask = 0; fpoffset = 0; \ ! 548: for (regno = 24 ; regno < 56 ; regno++) \ ! 549: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 550: nregs++; \ ! 551: fpoffset = nregs*8; \ ! 552: nregs = 0; \ ! 553: for (regno = 16; regno < 24; regno++) \ ! 554: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 555: { nregs++; fmask |= 1 << (23 - regno); } \ ! 556: foffset = fpoffset + nregs * 12; \ ! 557: nregs = 0; mask = 0; \ ! 558: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ ! 559: for (regno = 0; regno < 16; regno++) \ ! 560: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 561: { nregs++; mask |= 1 << regno; } \ ! 562: offset = foffset + nregs * 4; \ ! 563: if (offset + fsize >= 0x8000 \ ! 564: && frame_pointer_needed \ ! 565: && (mask || fmask || fpoffset)) \ ! 566: { fprintf (FILE, "\tmovel $%d,a0\n", -fsize); \ ! 567: fsize = 0, big = 1; } \ ! 568: if (exact_log2 (mask) >= 0) { \ ! 569: if (big) \ ! 570: fprintf (FILE, "\tmovel -%d(a6,a0.l),%s\n", \ ! 571: offset + fsize, reg_names[exact_log2 (mask)]); \ ! 572: else if (! frame_pointer_needed) \ ! 573: fprintf (FILE, "\tmovel (sp)+,%s\n", \ ! 574: reg_names[exact_log2 (mask)]); \ ! 575: else \ ! 576: fprintf (FILE, "\tmovel -%d(a6),%s\n", \ ! 577: offset + fsize, reg_names[exact_log2 (mask)]); } \ ! 578: else if (mask) { \ ! 579: if (big) \ ! 580: fprintf (FILE, "\tmovem -%d(a6,a0.l),$0x%x\n", \ ! 581: offset + fsize, mask); \ ! 582: else if (! frame_pointer_needed) \ ! 583: fprintf (FILE, "\tmovem (sp)+,$0x%x\n", mask); \ ! 584: else \ ! 585: fprintf (FILE, "\tmovem -%d(a6),$0x%x\n", \ ! 586: offset + fsize, mask); } \ ! 587: if (fmask) { \ ! 588: if (big) \ ! 589: fprintf (FILE, "\tfmovem -%d(a6,a0.l),$0x%x\n", \ ! 590: foffset + fsize, fmask); \ ! 591: else if (! frame_pointer_needed) \ ! 592: fprintf (FILE, "\tfmovem (sp)+,$0x%x\n", fmask); \ ! 593: else \ ! 594: fprintf (FILE, "\tfmovem -%d(a6),$0x%x\n", \ ! 595: foffset + fsize, fmask); } \ ! 596: if (fpoffset != 0) \ ! 597: for (regno = 55; regno >= 24; regno--) \ ! 598: if (regs_ever_live[regno] && ! call_used_regs[regno]) { \ ! 599: if (big) \ ! 600: fprintf(FILE, "\tfpmoved -%d(a6,a0.l), %s\n", \ ! 601: fpoffset + fsize, reg_names[regno]); \ ! 602: else if (! frame_pointer_needed) \ ! 603: fprintf(FILE, "\tfpmoved (sp)+, %s\n", \ ! 604: reg_names[regno]); \ ! 605: else \ ! 606: fprintf(FILE, "\tfpmoved -%d(a6), %s\n", \ ! 607: fpoffset + fsize, reg_names[regno]); \ ! 608: fpoffset -= 8; \ ! 609: } \ ! 610: if (frame_pointer_needed) \ ! 611: fprintf (FILE, "\tunlk a6\n"); \ ! 612: if (current_function_pops_args) \ ! 613: fprintf (FILE, "\trtd $%d\n", current_function_pops_args); \ ! 614: else fprintf (FILE, "\trts\n"); } ! 615:
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