/* Definitions of target machine for GNU compiler. SONY NEWS-OS 4 version. Copyright (C) 1987, 1989 Free Software Foundation, Inc. This file is part of GNU CC. GNU CC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef USE_GAS /* This controls conditionals in m68k.h. */ #define MOTOROLA /* Use Motorola syntax rather than "MIT" */ #define SGS_NO_LI /* Suppress jump table label usage */ #endif #include "m68k.h" /* See m68k.h. 7 means 68020 with 68881. */ #define TARGET_DEFAULT 7 /* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified. This will control the use of inline 68881 insns in certain macros. */ #define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}" /* Names to predefine in the preprocessor for this target machine. */ /* These are the ones defined by Sony, plus mc68000 for uniformity with GCC on other 68000 systems. */ #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews700" /* These conditionals tested for different submodels, but they were incorrect since they tested the host rather than the target. The choice of model shouldn't actually matter. */ #if 0 #ifdef news800 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews800" #endif #ifdef news900 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dnews900" #endif #ifdef news1500 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1500" #endif #ifdef news1700 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1700" #endif #ifdef news1800 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1800" #endif #ifdef news1900 #define CPP_PREDEFINES "-Dunix -Dbsd43 -Dsony -Dsony_news -Dmc68000 -Dmc68020 -Dmc68030 -Dnews1900" #endif #endif /* Link with libg.a when debugging, for dbx's sake. */ #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} " /* This is BSD, so it wants DBX format. */ #define DBX_DEBUGGING_INFO #if 0 /* This is to be compatible with types.h. It was found to be necessary with Newsos 3. */ #define SIZE_TYPE "long int" #endif /* Override parts of m68k.h to fit Sony's assembler syntax. */ #undef BIGGEST_ALIGNMENT #undef CALL_USED_REGISTERS #undef FUNCTION_VALUE #undef LIBCALL_VALUE #undef FUNCTION_PROFILER #ifdef MOTOROLA #undef FUNCTION_PROLOGUE #undef FUNCTION_EPILOGUE #undef REGISTER_NAMES #undef ASM_OUTPUT_REG_PUSH #undef ASM_OUTPUT_REG_POP #undef ASM_OUTPUT_DOUBLE #undef ASM_OUTPUT_SKIP #undef ASM_FORMAT_PRIVATE_NAME #undef PRINT_OPERAND #undef PRINT_OPERAND_ADDRESS #endif #undef ASM_OUTPUT_ALIGN /* There is no point aligning anything to a rounder boundary than this. */ #define BIGGEST_ALIGNMENT 32 /* A bitfield declared as `int' forces `int' alignment for the struct. */ #define PCC_BITFIELD_TYPE_MATTERS 1 /* NEWS makes d2, d3, fp2 and fp3 unsaved registers, unlike the Sun system. */ #define CALL_USED_REGISTERS \ {1, 1, 1, 1, 0, 0, 0, 0, \ 1, 1, 0, 0, 0, 0, 0, 1, \ 1, 1, 1, 1, 0, 0, 0, 0} /* NEWS returns floats and doubles in fp0, not d0/d1. */ #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) #define LIBCALL_VALUE(MODE) \ gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0)) #define ASM_OUTPUT_ALIGN(FILE,LOG) \ fprintf (FILE, "\t.align %d\n", (LOG)) #ifdef MOTOROLA /* Don't try to define `gcc_compiled.' since the assembler does not accept symbols with periods. This is no real loss since GDB only really needs it for parms passed in registers. */ #define ASM_IDENTIFY_GCC(FILE) #define FUNCTION_PROLOGUE(FILE, SIZE) \ { register int regno; \ register int mask = 0; \ extern char call_used_regs[]; \ int fsize = ((SIZE) + 3) & -4; \ if (frame_pointer_needed) \ { if (fsize < 0x8000) \ fprintf (FILE, "\tlink fp,#%d\n", -fsize); \ else if (TARGET_68020) \ fprintf (FILE, "\tlink.l fp,#%d\n", -fsize); \ else \ fprintf (FILE, "\tlink fp,#0\n\tsub.l #%d,sp\n", fsize);\ } \ else if (fsize) \ { \ int amt = fsize + 4; \ /* Adding negative number is faster on the 68040. */ \ if (fsize + 4 < 0x8000) \ asm_fprintf (FILE, "\tadd.w %0I%d,%Rsp\n", - amt); \ else \ asm_fprintf (FILE, "\tadd.l %0I%d,%Rsp\n", - amt); \ } \ for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ mask |= 1 << (regno - 16); \ if (mask != 0) \ fprintf (FILE, "\tfmovem.x #0x%x,-(sp)\n", mask & 0xff); \ mask = 0; \ for (regno = 0; regno < 16; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ mask |= 1 << (15 - regno); \ if (frame_pointer_needed) \ mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ if (exact_log2 (mask) >= 0) \ fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \ else if (mask) fprintf (FILE, "\tmovem.l #0x%x,-(sp)\n", mask); } #define FUNCTION_PROFILER(FILE, LABEL_NO) \ fprintf (FILE, "\tmove.l #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); #define FUNCTION_EPILOGUE(FILE, SIZE) \ { register int regno; \ register int mask, fmask; \ register int nregs; \ int offset, foffset; \ extern char call_used_regs[]; \ int fsize = ((SIZE) + 3) & -4; \ int big = 0; \ nregs = 0; fmask = 0; \ for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ { nregs++; fmask |= 1 << (23 - regno); } \ foffset = nregs * 12; \ nregs = 0; mask = 0; \ if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ for (regno = 0; regno < 16; regno++) \ if (regs_ever_live[regno] && ! call_used_regs[regno]) \ { nregs++; mask |= 1 << regno; } \ offset = foffset + nregs * 4; \ if (offset + fsize >= 0x8000 \ && frame_pointer_needed \ && (mask || fmask)) \ { fprintf (FILE, "\tmove.l #%d,a0\n", -fsize); \ fsize = 0, big = 1; } \ if (exact_log2 (mask) >= 0) { \ if (big) \ fprintf (FILE, "\tmove.l (-%d,fp,a0.l),%s\n", \ offset + fsize, reg_names[exact_log2 (mask)]); \ else if (! frame_pointer_needed) \ fprintf (FILE, "\tmove.l (sp)+,%s\n", \ reg_names[exact_log2 (mask)]); \ else \ fprintf (FILE, "\tmove.l (-%d,fp),%s\n", \ offset + fsize, reg_names[exact_log2 (mask)]); } \ else if (mask) { \ if (big) \ fprintf (FILE, "\tmovem.l (-%d,fp,a0.l),#0x%x\n", \ offset + fsize, mask); \ else if (! frame_pointer_needed) \ fprintf (FILE, "\tmovem.l (sp)+,#0x%x\n", mask); \ else \ fprintf (FILE, "\tmovem.l (-%d,fp),#0x%x\n", \ offset + fsize, mask); } \ if (fmask) { \ if (big) \ fprintf (FILE, "\tfmovem.x (-%d,fp,a0.l),#0x%x\n", \ foffset + fsize, fmask); \ else if (! frame_pointer_needed) \ fprintf (FILE, "\tfmovem.x (sp)+,#0x%x\n", fmask); \ else \ fprintf (FILE, "\tfmovem.x (-%d,fp),#0x%x\n", \ foffset + fsize, fmask); } \ if (frame_pointer_needed) \ fprintf (FILE, "\tunlk fp\n"); \ else if (fsize) \ { \ if (fsize + 4 < 0x8000) \ fprintf (FILE, "\tadd.w #%d,sp\n", fsize + 4); \ else \ fprintf (FILE, "\tadd.l #%d,sp\n", fsize + 4); \ } \ if (current_function_pops_args) \ fprintf (FILE, "\trtd #%d\n", current_function_pops_args); \ else fprintf (FILE, "\trts\n"); } /* Difference from m68k.h is in `fp' instead of `a6'. */ #define REGISTER_NAMES \ {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \ "a0", "a1", "a2", "a3", "a4", "a5", "fp", "sp", \ "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7"} /* This is how to output an insn to push a register on the stack. It need not be very fast code. */ #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO]) /* This is how to output an insn to pop a register from the stack. It need not be very fast code. */ #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO]) #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ fprintf (FILE, "\t.double 0d%.20e\n", (VALUE)) #define ASM_OUTPUT_SKIP(FILE,SIZE) \ fprintf (FILE, "\t.space %u\n", (SIZE)) #if 0 /* The NEWS assembler in version 3.4 complains about fmove.d, but this macro proved not to work right. 3.4 is old, so forget about it. */ #define ASM_OUTPUT_OPCODE(FILE, STRING) \ { \ if (!strncmp (STRING, "fmove.d", 7) \ && CONSTANT_P (operands[1])) \ { \ fprintf (FILE, "fmove.x"); \ STRING += 7; \ } \ } #endif /* Store in OUTPUT a string (made with alloca) containing an assembler-name for a local static variable named NAME. LABELNO is an integer which is different for each call. */ #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 13), \ sprintf ((OUTPUT), "%s$$$%d", (NAME), (LABELNO))) #define PRINT_OPERAND(FILE, X, CODE) \ { if (CODE == '.') fprintf (FILE, "."); \ else if (CODE == '#') fprintf (FILE, "#"); \ else if (CODE == '-') fprintf (FILE, "-(sp)"); \ else if (CODE == '+') fprintf (FILE, "(sp)+"); \ else if (CODE == '@') fprintf (FILE, "(sp)"); \ else if (CODE == '!') fprintf (FILE, "fpcr"); \ else if (CODE == '$') {if (TARGET_68040_ONLY) fprintf (FILE, "s");} \ else if (CODE == '&') {if (TARGET_68040_ONLY) fprintf (FILE, "d");} \ else if (GET_CODE (X) == REG) \ fprintf (FILE, "%s", reg_names[REGNO (X)]); \ else if (GET_CODE (X) == MEM) \ output_address (XEXP (X, 0)); \ else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ { union { double d; int i[2]; } u; \ union { float f; int i; } u1; \ u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ u1.f = u.d; \ if (CODE == 'f') \ fprintf (FILE, "#0f%.9e", u1.f); \ else \ fprintf (FILE, "#0x%x", u1.i); } \ else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ { union { double d; int i[2]; } u; \ u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ fprintf (FILE, "#0d%.20e", u.d); } \ else if (CODE == 'b') output_addr_const (FILE, X); \ else { putc ('#', FILE); output_addr_const (FILE, X); }} #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ { register rtx reg1, reg2, breg, ireg; \ register rtx addr = ADDR; \ rtx offset; \ switch (GET_CODE (addr)) \ { \ case REG: \ fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ break; \ case PRE_DEC: \ fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ break; \ case POST_INC: \ fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ break; \ case PLUS: \ reg1 = 0; reg2 = 0; \ ireg = 0; breg = 0; \ offset = 0; \ if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ { \ offset = XEXP (addr, 0); \ addr = XEXP (addr, 1); \ } \ else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ { \ offset = XEXP (addr, 1); \ addr = XEXP (addr, 0); \ } \ if (GET_CODE (addr) != PLUS) ; \ else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ { \ reg1 = XEXP (addr, 0); \ addr = XEXP (addr, 1); \ } \ else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ { \ reg1 = XEXP (addr, 1); \ addr = XEXP (addr, 0); \ } \ else if (GET_CODE (XEXP (addr, 0)) == MULT) \ { \ reg1 = XEXP (addr, 0); \ addr = XEXP (addr, 1); \ } \ else if (GET_CODE (XEXP (addr, 1)) == MULT) \ { \ reg1 = XEXP (addr, 1); \ addr = XEXP (addr, 0); \ } \ else if (GET_CODE (XEXP (addr, 0)) == REG) \ { \ reg1 = XEXP (addr, 0); \ addr = XEXP (addr, 1); \ } \ else if (GET_CODE (XEXP (addr, 1)) == REG) \ { \ reg1 = XEXP (addr, 1); \ addr = XEXP (addr, 0); \ } \ if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ || GET_CODE (addr) == SIGN_EXTEND) \ { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ || GET_CODE (reg1) == MULT)) \ || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ { breg = reg2; ireg = reg1; } \ else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ { breg = reg1; ireg = reg2; } \ if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ { int scale = 1; \ if (GET_CODE (ireg) == MULT) \ { scale = INTVAL (XEXP (ireg, 1)); \ ireg = XEXP (ireg, 0); } \ if (GET_CODE (ireg) == SIGN_EXTEND) \ fprintf (FILE, "(L%d.b,pc,%s.w", \ CODE_LABEL_NUMBER (XEXP (addr, 0)), \ reg_names[REGNO (XEXP (ireg, 0))]); \ else \ fprintf (FILE, "(L%d.b,pc,%s.l", \ CODE_LABEL_NUMBER (XEXP (addr, 0)), \ reg_names[REGNO (ireg)]); \ if (scale != 1) fprintf (FILE, "*%d", scale); \ putc (')', FILE); \ break; } \ if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ { fprintf (FILE, "(L%d.b,pc,%s.l", \ CODE_LABEL_NUMBER (XEXP (addr, 0)), \ reg_names[REGNO (breg)]); \ putc (')', FILE); \ break; } \ if (ireg != 0 || breg != 0) \ { int scale = 1; \ if (breg == 0) \ abort (); \ if (addr && GET_CODE (addr) == LABEL_REF) abort (); \ fprintf (FILE, "("); \ if (addr != 0) { \ output_addr_const (FILE, addr); \ putc (',', FILE); } \ fprintf (FILE, "%s", reg_names[REGNO (breg)]); \ if (ireg != 0) \ putc (',', FILE); \ if (ireg != 0 && GET_CODE (ireg) == MULT) \ { scale = INTVAL (XEXP (ireg, 1)); \ ireg = XEXP (ireg, 0); } \ if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ else if (ireg != 0) \ fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ if (scale != 1) fprintf (FILE, "*%d", scale); \ putc (')', FILE); \ break; \ } \ else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ { fprintf (FILE, "(L%d.b,pc,%s.l)", \ CODE_LABEL_NUMBER (XEXP (addr, 0)), \ reg_names[REGNO (reg1)]); \ break; } \ default: \ if (GET_CODE (addr) == CONST_INT \ && INTVAL (addr) < 0x8000 \ && INTVAL (addr) >= -0x8000) \ fprintf (FILE, "%d.w", INTVAL (addr)); \ else \ output_addr_const (FILE, addr); \ }} #else /* Using GAS, which uses the MIT assembler syntax, like a Sun. */ #define FUNCTION_PROFILER(FILE, LABEL_NO) \ fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABEL_NO)); #endif /* MOTOROLA */