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1.1 ! root 1: /* Definitions of target machine for GNU compiler. SONY NEWS version. ! 2: Copyright (C) 1987 Free Software Foundation, Inc. ! 3: ! 4: This file is part of GNU CC. ! 5: ! 6: GNU CC is distributed in the hope that it will be useful, ! 7: but WITHOUT ANY WARRANTY. No author or distributor ! 8: accepts responsibility to anyone for the consequences of using it ! 9: or for whether it serves any particular purpose or works at all, ! 10: unless he says so in writing. Refer to the GNU CC General Public ! 11: License for full details. ! 12: ! 13: Everyone is granted permission to copy, modify and redistribute ! 14: GNU CC, but only under the conditions described in the ! 15: GNU CC General Public License. A copy of this license is ! 16: supposed to have been given to you along with GNU CC so you ! 17: can know your rights and responsibilities. It should be in a ! 18: file named COPYING. Among other things, the copyright notice ! 19: and this notice must be preserved on all copies. */ ! 20: ! 21: /* Use the GNU Assembler, because the system's assembler ! 22: has no way to assemble the difference of two labels ! 23: for the displacement in a switch-dispatch instruction. */ ! 24: ! 25: #define USE_GAS ! 26: ! 27: #ifndef USE_GAS ! 28: /* This controls conditionals in tm-m68k.h. */ ! 29: #define MOTOROLA ! 30: #endif ! 31: ! 32: #include "tm-m68k.h" ! 33: ! 34: /* See tm-m68k.h. 7 means 68020 with 68881. */ ! 35: ! 36: #define TARGET_DEFAULT 7 ! 37: ! 38: /* Names to predefine in the preprocessor for this target machine. */ ! 39: ! 40: #define CPP_PREDEFINES "-Dunix -Dmc68020 -Dnews800" ! 41: ! 42: /* Override parts of tm-m68k.h to fit Sony's assembler syntax. */ ! 43: ! 44: #undef POINTER_BOUNDARY ! 45: #undef BIGGEST_ALIGNMENT ! 46: #undef CALL_USED_REGISTERS ! 47: #undef FUNCTION_VALUE ! 48: #undef LIBCALL_VALUE ! 49: #undef FUNCTION_PROFILER ! 50: ! 51: #ifdef MOTOROLA ! 52: #undef FUNCTION_PROLOGUE ! 53: #undef FUNCTION_EPILOGUE ! 54: #undef REGISTER_NAMES ! 55: #undef ASM_OUTPUT_DOUBLE ! 56: #undef ASM_OUTPUT_SKIP ! 57: #undef PRINT_OPERAND ! 58: #undef PRINT_OPERAND_ADDRESS ! 59: #endif ! 60: ! 61: #undef ASM_OUTPUT_ALIGN ! 62: ! 63: /* Allocation boundary (in *bits*) for storing pointers in memory. */ ! 64: #define POINTER_BOUNDARY 32 ! 65: ! 66: /* There is no point aligning anything to a rounder boundary than this. */ ! 67: #define BIGGEST_ALIGNMENT 32 ! 68: ! 69: /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */ ! 70: ! 71: #define CALL_USED_REGISTERS \ ! 72: {1, 1, 1, 1, 0, 0, 0, 0, \ ! 73: 1, 1, 0, 0, 0, 0, 0, 1, \ ! 74: 1, 1, 1, 1, 0, 0, 0, 0} ! 75: ! 76: /* NEWS returns floats and doubles in fp0, not d0/d1. */ ! 77: ! 78: #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) ! 79: ! 80: #define LIBCALL_VALUE(MODE) \ ! 81: gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0)) ! 82: ! 83: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 84: fprintf (FILE, "\t.align %d\n", (LOG)) ! 85: ! 86: #ifdef MOTOROLA ! 87: ! 88: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 89: { register int regno; \ ! 90: register int mask = 0; \ ! 91: static char *reg_names[] = REGISTER_NAMES; \ ! 92: extern char call_used_regs[]; \ ! 93: int fsize = (SIZE); \ ! 94: if (frame_pointer_needed) \ ! 95: { if (TARGET_68020 || fsize < 0x10000) \ ! 96: fprintf (FILE, "\tlink fp,#%d\n", -fsize); \ ! 97: else \ ! 98: fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize); } \ ! 99: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 100: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 101: mask |= 1 << (regno - 16); \ ! 102: if (mask != 0) \ ! 103: fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \ ! 104: mask = 0; \ ! 105: for (regno = 0; regno < 16; regno++) \ ! 106: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 107: mask |= 1 << (15 - regno); \ ! 108: if (frame_pointer_needed) \ ! 109: mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ ! 110: if (exact_log2 (mask) >= 0) \ ! 111: fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ ! 112: else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); } ! 113: ! 114: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 115: fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 116: ! 117: #define FUNCTION_EPILOGUE(FILE, SIZE) \ ! 118: { register int regno; \ ! 119: register int mask, fmask; \ ! 120: register int nregs; \ ! 121: int offset, foffset; \ ! 122: extern char call_used_regs[]; \ ! 123: static char *reg_names[] = REGISTER_NAMES; \ ! 124: extern int current_function_pops_args; \ ! 125: extern int current_function_args_size; \ ! 126: int fsize = (SIZE); \ ! 127: int big = 0; \ ! 128: nregs = 0; fmask = 0; \ ! 129: for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 130: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 131: { nregs++; fmask |= 1 << (23 - regno); } \ ! 132: foffset = nregs * 12; \ ! 133: nregs = 0; mask = 0; \ ! 134: if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ ! 135: for (regno = 0; regno < 16; regno++) \ ! 136: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 137: { nregs++; mask |= 1 << regno; } \ ! 138: offset = foffset + nregs * 4; \ ! 139: if (offset + fsize >= 0x8000 && frame_pointer_needed) \ ! 140: { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \ ! 141: fsize = 0, big = 1; } \ ! 142: if (exact_log2 (mask) >= 0) { \ ! 143: if (big) \ ! 144: fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \ ! 145: offset + fsize, reg_names[exact_log2 (mask)]); \ ! 146: else if (! frame_pointer_needed) \ ! 147: fprintf (FILE, "\tmove.l (sp)+,%s\n", \ ! 148: reg_names[exact_log2 (mask)]); \ ! 149: else \ ! 150: fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \ ! 151: offset + fsize, reg_names[exact_log2 (mask)]); } \ ! 152: else if (mask) { \ ! 153: if (big) \ ! 154: fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \ ! 155: offset + fsize, mask); \ ! 156: else if (! frame_pointer_needed) \ ! 157: fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \ ! 158: else \ ! 159: fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \ ! 160: offset + fsize, mask); } \ ! 161: if (fmask) { \ ! 162: if (big) \ ! 163: fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \ ! 164: foffset + fsize, fmask); \ ! 165: else if (! frame_pointer_needed) \ ! 166: fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \ ! 167: else \ ! 168: fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \ ! 169: foffset + fsize, fmask); } \ ! 170: if (frame_pointer_needed) \ ! 171: fprintf (FILE, "\tunlk fp\n"); \ ! 172: if (current_function_pops_args && current_function_args_size) \ ! 173: fprintf (FILE, "\trtd #%d\n", current_function_args_size); \ ! 174: else fprintf (FILE, "\trts\n"); } ! 175: ! 176: /* Difference from tm-m68k.h is in `fp' instead of `a6'. */ ! 177: ! 178: #define REGISTER_NAMES \ ! 179: {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \ ! 180: "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \ ! 181: "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"} ! 182: ! 183: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 184: fprintf (FILE, "\t.double 0d%.20e\n", (VALUE)) ! 185: ! 186: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 187: fprintf (FILE, "\t.space %d\n", (SIZE)) ! 188: ! 189: #define PRINT_OPERAND(FILE, X, CODE) \ ! 190: { if (CODE == '.') fprintf (FILE, "."); \ ! 191: else if (CODE == '#') fprintf (FILE, "#"); \ ! 192: else if (CODE == '-') fprintf (FILE, "-(sp)"); \ ! 193: else if (CODE == '+') fprintf (FILE, "(sp)+"); \ ! 194: else if (CODE == 's') fprintf (FILE, "(sp)"); \ ! 195: else if (CODE == '!') fprintf (FILE, "ccr"); \ ! 196: else if (GET_CODE (X) == REG) \ ! 197: fprintf (FILE, "%s", reg_name [REGNO (X)]); \ ! 198: else if (GET_CODE (X) == MEM) \ ! 199: output_address (XEXP (X, 0)); \ ! 200: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ ! 201: { union { double d; int i[2]; } u; \ ! 202: union { float f; int i; } u1; \ ! 203: u.i[0] = XINT (X, 0); u.i[1] = XINT (X, 1); \ ! 204: u1.f = u.d; \ ! 205: if (CODE == 'f') \ ! 206: fprintf (FILE, "#0f%.9e", u1.f); \ ! 207: else \ ! 208: fprintf (FILE, "#0x%x", u1.i); } \ ! 209: else if (GET_CODE (X) == CONST_DOUBLE) \ ! 210: { union { double d; int i[2]; } u; \ ! 211: u.i[0] = XINT (X, 0); u.i[1] = XINT (X, 1); \ ! 212: fprintf (FILE, "#0d%.20e", u.d); } \ ! 213: else if (CODE == 'b') output_addr_const (FILE, X); \ ! 214: else { putc ('#', FILE); output_addr_const (FILE, X); }} ! 215: ! 216: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 217: { register rtx reg1, reg2, breg, ireg; \ ! 218: register rtx addr = ADDR; \ ! 219: rtx offset; \ ! 220: switch (GET_CODE (addr)) \ ! 221: { \ ! 222: case REG: \ ! 223: fprintf (FILE, "(%s)", reg_name [REGNO (addr)]); \ ! 224: break; \ ! 225: case PRE_DEC: \ ! 226: fprintf (FILE, "-(%s)", reg_name [REGNO (XEXP (addr, 0))]); \ ! 227: break; \ ! 228: case POST_INC: \ ! 229: fprintf (FILE, "(%s)+", reg_name [REGNO (XEXP (addr, 0))]); \ ! 230: break; \ ! 231: case PLUS: \ ! 232: reg1 = 0; reg2 = 0; \ ! 233: ireg = 0; breg = 0; \ ! 234: offset = 0; \ ! 235: if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ ! 236: { \ ! 237: offset = XEXP (addr, 0); \ ! 238: addr = XEXP (addr, 1); \ ! 239: } \ ! 240: else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ ! 241: { \ ! 242: offset = XEXP (addr, 1); \ ! 243: addr = XEXP (addr, 0); \ ! 244: } \ ! 245: if (GET_CODE (addr) != PLUS) ; \ ! 246: else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ ! 247: { \ ! 248: reg1 = XEXP (addr, 0); \ ! 249: addr = XEXP (addr, 1); \ ! 250: } \ ! 251: else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ ! 252: { \ ! 253: reg1 = XEXP (addr, 1); \ ! 254: addr = XEXP (addr, 0); \ ! 255: } \ ! 256: else if (GET_CODE (XEXP (addr, 0)) == MULT) \ ! 257: { \ ! 258: reg1 = XEXP (addr, 0); \ ! 259: addr = XEXP (addr, 1); \ ! 260: } \ ! 261: else if (GET_CODE (XEXP (addr, 1)) == MULT) \ ! 262: { \ ! 263: reg1 = XEXP (addr, 1); \ ! 264: addr = XEXP (addr, 0); \ ! 265: } \ ! 266: else if (GET_CODE (XEXP (addr, 0)) == REG) \ ! 267: { \ ! 268: reg1 = XEXP (addr, 0); \ ! 269: addr = XEXP (addr, 1); \ ! 270: } \ ! 271: else if (GET_CODE (XEXP (addr, 1)) == REG) \ ! 272: { \ ! 273: reg1 = XEXP (addr, 1); \ ! 274: addr = XEXP (addr, 0); \ ! 275: } \ ! 276: if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ ! 277: || GET_CODE (addr) == SIGN_EXTEND) \ ! 278: { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ ! 279: if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ ! 280: if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ ! 281: || GET_CODE (reg1) == MULT)) \ ! 282: || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ ! 283: { breg = reg2; ireg = reg1; } \ ! 284: else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ ! 285: { breg = reg1; ireg = reg2; } \ ! 286: if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ ! 287: { int scale = 1; \ ! 288: if (GET_CODE (ireg) == MULT) \ ! 289: { scale = INTVAL (XEXP (ireg, 1)); \ ! 290: ireg = XEXP (ireg, 0); } \ ! 291: if (GET_CODE (ireg) == SIGN_EXTEND) \ ! 292: fprintf (FILE, "(L%d-LI%d.b,pc,%s.w", \ ! 293: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 294: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 295: reg_name[REGNO (XEXP (ireg, 0))]); \ ! 296: else \ ! 297: fprintf (FILE, "(L%d-LI%d.b,pc,%s.l", \ ! 298: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 299: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 300: reg_name[REGNO (ireg)]); \ ! 301: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 302: putc (')', FILE); \ ! 303: break; } \ ! 304: if (ireg != 0 || breg != 0) \ ! 305: { int scale = 1; \ ! 306: if (breg == 0) \ ! 307: abort (); \ ! 308: fprintf (FILE, "("); \ ! 309: if (addr != 0) { \ ! 310: output_addr_const (FILE, addr); \ ! 311: putc (',', FILE); } \ ! 312: fprintf (FILE, "%s", reg_name[REGNO (breg)]); \ ! 313: if (ireg != 0) \ ! 314: putc (',', FILE); \ ! 315: if (ireg != 0 && GET_CODE (ireg) == MULT) \ ! 316: { scale = INTVAL (XEXP (ireg, 1)); \ ! 317: ireg = XEXP (ireg, 0); } \ ! 318: if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ ! 319: fprintf (FILE, "%s.w", reg_name[REGNO (XEXP (ireg, 0))]); \ ! 320: else if (ireg != 0) \ ! 321: fprintf (FILE, "%s.l", reg_name[REGNO (ireg)]); \ ! 322: if (scale != 1) fprintf (FILE, "*%d", scale); \ ! 323: putc (')', FILE); \ ! 324: break; \ ! 325: } \ ! 326: else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ ! 327: { fprintf (FILE, "(L%d-LI%d.b,pc,%s:l)", \ ! 328: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 329: CODE_LABEL_NUMBER (XEXP (addr, 0)), \ ! 330: reg_name[REGNO (reg1)]); \ ! 331: break; } \ ! 332: default: \ ! 333: if (GET_CODE (addr) == CONST_INT \ ! 334: && INTVAL (addr) < 0x8000 \ ! 335: && INTVAL (addr) >= -0x8000) \ ! 336: fprintf (FILE, "%d.w", INTVAL (addr)); \ ! 337: else \ ! 338: output_addr_const (FILE, addr); \ ! 339: }} ! 340: ! 341: #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */ ! 342: ! 343: #define FUNCTION_PROFILER(FILE, LABEL_NO) \ ! 344: fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); ! 345: ! 346: #endif /* MOTOROLA */
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