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Diffstat (limited to 'contrib/gcc/config/i386/sequent.h')
| -rw-r--r-- | contrib/gcc/config/i386/sequent.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/sequent.h b/contrib/gcc/config/i386/sequent.h new file mode 100644 index 000000000000..4d76c389b6ae --- /dev/null +++ b/contrib/gcc/config/i386/sequent.h @@ -0,0 +1,152 @@ +/* Definitions for Sequent Intel 386. + Copyright (C) 1988, 1994 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, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include "i386/i386.h" + +/* Use the BSD assembler syntax. */ + +#include "i386/bsd.h" + +/* By default, don't use IEEE compatible arithmetic comparisons + because the assembler can't handle the fucom insn. + Return float values in the 387. + (TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387) */ + +#undef TARGET_DEFAULT +#define TARGET_DEFAULT 0201 + +/* Specify predefined symbols in preprocessor. */ + +#define CPP_PREDEFINES "-Dunix -Di386 -Dsequent -Asystem(unix) -Acpu(i386) -Amachine(i386)" + +/* Pass -Z and -ZO options to the linker. */ + +#define LINK_SPEC "%{Z*}" + +#if 0 /* Dynix 3.1 is said to accept -L. */ +/* Dynix V3.0.12 doesn't accept -L at all. */ + +#define LINK_LIBGCC_SPECIAL +#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} " + +/* We don't want to output SDB debugging information. */ + +#undef SDB_DEBUGGING_INFO + +/* We want to output DBX debugging information. */ + +#define DBX_DEBUGGING_INFO + +/* Sequent Symmetry has size_t defined as int in /usr/include/sys/types.h */ +#define SIZE_TYPE "int" + +/* gcc order is ax, dx, cx, bx, si, di, bp, sp, st, st. + * dbx order is ax, dx, cx, st(0), st(1), bx, si, di, st(2), st(3), + * st(4), st(5), st(6), st(7), sp, bp */ + +/* ??? The right thing would be to change the ordering of the + registers to correspond to the conventions of this system, + and get rid of DBX_REGISTER_NUMBER. */ + +#undef DBX_REGISTER_NUMBER +#define DBX_REGISTER_NUMBER(n) \ +((n) < 3 ? (n) : (n) < 6 ? (n) + 2 \ + : (n) == 6 ? 15 : (n) == 7 ? 14 : 3) + +/* malcolmp@hydra.maths.unsw.EDU.AU says these two definitions + fix trouble in dbx. */ +#undef DBX_OUTPUT_LBRAC +#define DBX_OUTPUT_LBRAC(file,name) \ + fprintf (asmfile, "%s %d,0,%d,", ASM_STABN_OP, N_LBRAC, depth); \ + assemble_name (asmfile, buf); \ + fprintf (asmfile, "\n"); + +#undef DBX_OUTPUT_RBRAC +#define DBX_OUTPUT_RBRAC(file,name) \ + fprintf (asmfile, "%s %d,0,%d,", ASM_STABN_OP, N_RBRAC, depth); \ + assemble_name (asmfile, buf); \ + fprintf (asmfile, "\n"); + +/* Prevent anything from being allocated in the register pair cx/bx, + since that would confuse GDB. */ + +#undef HARD_REGNO_MODE_OK +#define HARD_REGNO_MODE_OK(REGNO, MODE) \ + (((REGNO) < 2 ? 1 \ + : (REGNO) < 4 ? 1 \ + : FP_REGNO_P (REGNO) ? (GET_MODE_CLASS (MODE) == MODE_FLOAT \ + || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT) \ + : (MODE) != QImode) \ + && ! (REGNO == 2 && GET_MODE_UNIT_SIZE (MODE) > 4)) + +/* Output assembler code to FILE to increment profiler label # LABELNO + for profiling a function entry. */ + +#undef FUNCTION_PROFILER +#define FUNCTION_PROFILER(FILE, LABELNO) \ + fprintf (FILE, "\tmovl $.LP%d,%%eax\n\tcall mcount\n", (LABELNO)); + +/* Assembler pseudo-op for shared data segment. */ +#define SHARED_SECTION_ASM_OP ".shdata" + +/* A C statement or statements which output an assembler instruction + opcode to the stdio stream STREAM. The macro-operand PTR is a + variable of type `char *' which points to the opcode name in its + "internal" form--the form that is written in the machine description. + + The Sequent assembler (identified as "Balance 8000 Assembler + 07/17/85 3.90" by "as -v") does not understand the `movs[bwl]' string + move mnemonics - it uses `smov[bwl]' instead. Change "movs" into + "smov", carefully avoiding the sign-extend opcodes. */ + +#define ASM_OUTPUT_OPCODE(STREAM, PTR) \ +{ \ + if ((PTR)[0] == 'm' \ + && (PTR)[1] == 'o' \ + && (PTR)[2] == 'v' \ + && (PTR)[3] == 's' \ + && ((PTR)[4] == 'b' || (PTR)[4] == 'w' || (PTR)[4] == 'l') \ + && ((PTR)[5] == ' ' || (PTR)[5] == '\t'|| (PTR)[5] == '\0')) \ + { \ + fprintf (STREAM, "smov"); \ + (PTR) += 4; \ + } \ +} + +/* 10-Aug-92 pes Local labels are prefixed with ".L" */ +#undef LPREFIX +#define LPREFIX ".L" + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER)\ + sprintf ((BUF), "*.%s%d", (PREFIX), (NUMBER)) + +#undef ASM_OUTPUT_INTERNAL_LABEL +#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)\ + fprintf (FILE, ".%s%d:\n", PREFIX, NUM) + +/* The native compiler passes the address of the returned structure in eax. */ +#undef STRUCT_VALUE +#undef STRUCT_VALUE_INCOMING +#define STRUCT_VALUE_REGNUM 0 |