592 lines
19 KiB
C
592 lines
19 KiB
C
/* Definitions of target machine for GNU compiler,
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SysV68 Motorola 3300 Delta Series.
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Copyright (C) 1987, 1993, 1994 Free Software Foundation, Inc.
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Coptributed by Abramo and Roberto Bagnara (bagnara@dipisa.di.unipi.it)
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based on Alex Crain's 3B1 definitions.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define MOTOROLA /* Use Motorola syntax rather than "MIT" */
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#define MOTOROLA_BSR /* Use Span-dependent optimized bsr */
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#define SGS /* Uses SGS assembler */
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#define SGS_CMP_ORDER /* Takes cmp operands in reverse order */
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#define SGS_SWAP_W /* Use swap.w rather than just plain swap */
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#define NO_DOLLAR_IN_LABEL
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#define NO_DOT_IN_LABEL
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#include "m68k/m68k.h"
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/* See m68k.h. 0407 means 68020-68040. */
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#ifndef TARGET_DEFAULT
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#define TARGET_DEFAULT 0407
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#endif
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/* -m[c]6800 requires special flag to the assembler. */
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#undef ASM_SPEC
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#define ASM_SPEC "%{m68000:-p 000}%{mc68000:-p 000}"
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/* NYI: FP= is equivalent to -msoft-float */
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/* We use /lib/libp/lib* when profiling. */
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/* NYI: if FP=M68881U library is -lc881u */
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/* NYI: if FP= library is -lc. */
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/* Default for us: FP=M68881 library is -lc881 */
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#undef LIB_SPEC
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#define LIB_SPEC "%{!shlib:%{p:-L/usr/lib/libp} %{pg:-L/usr/lib/libp} -lc881}"
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#define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}"
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/* Shared libraries need to use crt0s.o */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{!shlib:%{pg:mcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}\
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%{shlib:crt0s.o%s shlib.ifile%s} "
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/* Generate calls to memcpy, memcmp and memset. */
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#define TARGET_MEM_FUNCTIONS
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/* size_t is unsigned int. */
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#define SIZE_TYPE "unsigned int"
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/* Every structure or union's size must be a multiple of 2 bytes. */
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#define STRUCTURE_SIZE_BOUNDARY 16
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/* Allocation boundary (in *bits*) for storing arguments in argument list. */
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/* Be compatible with native compiler. */
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#undef PARM_BOUNDARY
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#define PARM_BOUNDARY 16
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/* cpp has to support a #sccs directive for the /usr/include files */
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#define SCCS_DIRECTIVE
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/* Make output for SDB. */
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#define SDB_DEBUGGING_INFO
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#undef REGISTER_PREFIX
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#define REGISTER_PREFIX "%"
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#if 0
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#undef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX "~"
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#endif
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#undef IMMEDIATE_PREFIX
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#define IMMEDIATE_PREFIX "&"
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#undef REGISTER_NAMES
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#define REGISTER_NAMES \
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{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
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"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%fp", "%sp", \
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"%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"}
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#undef FUNCTION_EXTRA_EPILOGUE
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#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \
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{ extern int current_function_returns_pointer; \
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if ((current_function_returns_pointer) && \
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! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \
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asm_fprintf (FILE, "\tmov.l %Ra0,%Rd0\n"); }
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABEL_NO) \
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fprintf (FILE, "\tmov.l &LP%%%d,%%a0\n\tjsr mcount%%\n", (LABEL_NO))
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/* This is how to output an insn to push a register on the stack.
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It need not be very fast code. */
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#undef ASM_OUTPUT_REG_PUSH
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#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
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fprintf (FILE, "\tmov.l %s,-(%%sp)\n", reg_names[REGNO])
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/* This is how to output an insn to pop a register from the stack.
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It need not be very fast code. */
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#undef ASM_OUTPUT_REG_POP
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#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
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fprintf (FILE, "\tmov.l (%%sp)+,%s\n", reg_names[REGNO])
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#undef ASM_APP_ON
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#define ASM_APP_ON ""
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#undef ASM_APP_OFF
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#define ASM_APP_OFF ""
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#undef TEXT_SECTION_ASM_OP
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#define TEXT_SECTION_ASM_OP "text"
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#undef DATA_SECTION_ASM_OP
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#define DATA_SECTION_ASM_OP "data"
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#undef ASCII_DATA_ASM_OP
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#define ASCII_DATA_ASM_OP "byte"
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/* The file command should always begin the output. */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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output_file_directive ((FILE), main_input_filename)
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/* The sysV68 assembler does not accept dots in labels.
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Let's use percent instead */
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#define ASM_IDENTIFY_GCC(FILE) fputs("gcc2_compiled%:\n", FILE)
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/* Names to predefine in the preprocessor for this target machine. */
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/* ihnp4!lmayk!lgm@eddie.mit.edu says mc68000 and m68k should not be here,
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on the other hand I don't care what he says. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dm68k -Dunix -DsysV68 -D__motorola__ -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
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/* Override part of the obstack macros. */
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#define __PTR_TO_INT(P) ((int)(P))
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#define __INT_TO_PTR(P) ((char *)(P))
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (68k, SGS/AT&T sysV68 syntax)");
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/* Function calls save all but a0, a1, d0, d1, fp0, fp1. */
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#undef CALL_USED_REGISTERS
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#define CALL_USED_REGISTERS \
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{1, 1, 0, 0, 0, 0, 0, 0, \
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1, 1, 0, 0, 0, 0, 0, 1, \
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1, 1, 0, 0, 0, 0, 0, 0}
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/* If TARGET_68881, return SF and DF values in fp0 instead of d0. */
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/* NYI: If FP=M68881U return SF and DF values in d0. */
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/* NYI: If -mold return pointer in a0 and d0 */
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#undef FUNCTION_VALUE
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/* sysV68 (brain damaged) cc convention support. */
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#define FUNCTION_VALUE(VALTYPE,FUNC) \
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(TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881 \
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? gen_rtx (REG, TYPE_MODE (VALTYPE), 16) \
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: (TREE_CODE (VALTYPE) == POINTER_TYPE \
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? gen_rtx (REG, TYPE_MODE (VALTYPE), 8) \
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: gen_rtx (REG, TYPE_MODE (VALTYPE), 0)))
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/* If TARGET_68881, SF and DF values are returned in fp0 instead of d0. */
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/* Is LIBCALL_VALUE never called with a pointer ? */
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#undef LIBCALL_VALUE
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#define LIBCALL_VALUE(MODE) \
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gen_rtx (REG, (MODE), \
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((TARGET_68881 \
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&& ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) \
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? 16 : 0))
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/* 1 if N is a possible register number for a function value.
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d0 may be used, and fp0 as well if -msoft-float is not specified. */
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#undef FUNCTION_VALUE_REGNO_P
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/* sysV68 (brain damaged) cc convention support. */
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#define FUNCTION_VALUE_REGNO_P(N) \
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((N) == 0 || (N) == 8 || (TARGET_68881 && (N) == 16))
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/* Define this to be true when FUNCTION_VALUE_REGNO_P is true for
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more than one register. */
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#undef NEEDS_UNTYPED_CALL
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#define NEEDS_UNTYPED_CALL 1
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/* This is the command to make the user-level label named NAME
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defined for reference from other files. */
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#undef GLOBAL_ASM_OP
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#define GLOBAL_ASM_OP "global"
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/* Store in OUTPUT a string (made with alloca) containing
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an assembler-name for a local static variable named NAME.
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LABELNO is an integer which is different for each call. */
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#undef ASM_FORMAT_PRIVATE_NAME
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#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
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( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 12), \
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sprintf ((OUTPUT), "%s_%%%d", (NAME), (LABELNO)))
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/* The sysV68 as doesn't know about double's and float's. */
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/* This is how to output an assembler line defining a `double' constant. */
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#undef ASM_OUTPUT_DOUBLE
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#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
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do { long l[2]; \
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REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \
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fprintf (FILE, "\tlong 0x%x,0x%x\n", l[0], l[1]); \
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} while (0)
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#undef ASM_OUTPUT_LONG_DOUBLE
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#define ASM_OUTPUT_LONG_DOUBLE(FILE,VALUE) \
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do { long l[3]; \
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REAL_VALUE_TO_TARGET_LONG_DOUBLE (VALUE, l); \
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fprintf (FILE, "\tlong 0x%x,0x%x,0x%x\n", l[0], l[1], l[2]); \
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} while (0)
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/* This is how to output an assembler line defining a `float' constant. */
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#undef ASM_OUTPUT_FLOAT
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#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
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do { long l; \
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REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \
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fprintf ((FILE), "\tlong 0x%x\n", l); \
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} while (0)
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/* This is how to output an assembler line defining an `int' constant. */
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#undef ASM_OUTPUT_INT
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#define ASM_OUTPUT_INT(FILE,VALUE) \
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( fprintf (FILE, "\tlong "), \
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output_addr_const (FILE, (VALUE)), \
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fprintf (FILE, "\n"))
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/* Likewise for `char' and `short' constants. */
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#undef ASM_OUTPUT_SHORT
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#define ASM_OUTPUT_SHORT(FILE,VALUE) \
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( fprintf (FILE, "\tshort "), \
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output_addr_const (FILE, (VALUE)), \
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fprintf (FILE, "\n"))
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#undef ASM_OUTPUT_CHAR
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#define ASM_OUTPUT_CHAR(FILE,VALUE) \
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( fprintf (FILE, "\tbyte "), \
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output_addr_const (FILE, (VALUE)), \
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fprintf (FILE, "\n"))
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/* This is how to output an assembler line for a numeric constant byte. */
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#undef ASM_OUTPUT_BYTE
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#define ASM_OUTPUT_BYTE(FILE,VALUE) \
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fprintf (FILE, "\tbyte 0x%x\n", (VALUE))
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/* This is how to output an assembler line
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that says to advance the location counter
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to a multiple of 2**LOG bytes. */
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#undef ASM_OUTPUT_ALIGN
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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if ((LOG) == 1) \
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fprintf (FILE, "\teven\n"); \
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else if ((LOG) != 0) \
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abort ();
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#undef ASM_OUTPUT_SKIP
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#define ASM_OUTPUT_SKIP(FILE,SIZE) \
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fprintf (FILE, "\tspace %u\n", (SIZE))
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/* Can't use ASM_OUTPUT_SKIP in text section. */
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#define ASM_NO_SKIP_IN_TEXT 1
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/* The beginnings of sdb support... */
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#undef ASM_OUTPUT_SOURCE_FILENAME
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#define ASM_OUTPUT_SOURCE_FILENAME(FILE, FILENAME) \
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do { fprintf (FILE, "\tfile\t"); \
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output_quoted_string (FILE, FILENAME); \
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fprintf (FILE, "\n"); \
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} while (0)
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#undef ASM_OUTPUT_SOURCE_LINE
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#define ASM_OUTPUT_SOURCE_LINE(FILE, LINENO) \
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fprintf (FILE, "\tln\t%d\n", \
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(sdb_begin_function_line \
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? last_linenum - sdb_begin_function_line : 1))
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/* Yet another null terminated string format. */
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#undef ASM_OUTPUT_ASCII
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#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
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do { register int sp = 0, lp = 0; \
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fprintf ((FILE), "\tbyte\t"); \
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loop: \
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if ((PTR)[sp] > ' ' && ! ((PTR)[sp] & 0x80) && (PTR)[sp] != '\\') \
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{ lp += 3; \
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fprintf ((FILE), "'%c", (PTR)[sp]); } \
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else \
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{ lp += 5; \
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fprintf ((FILE), "0x%x", (PTR)[sp]); } \
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if (++sp < (LEN)) \
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{ if (lp > 60) \
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{ lp = 0; \
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fprintf ((FILE), "\n\t%s ", ASCII_DATA_ASM_OP); } \
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else \
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putc (',', (FILE)); \
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goto loop; } \
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putc ('\n', (FILE)); } while (0)
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/* Output a float value (represented as a C double) as an immediate operand.
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This macro is a 68k-specific macro. */
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#undef ASM_OUTPUT_FLOAT_OPERAND
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#define ASM_OUTPUT_FLOAT_OPERAND(CODE,FILE,VALUE) \
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do { long l; \
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REAL_VALUE_TO_TARGET_SINGLE (r, l); \
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/* Use hex representation even if CODE is f. as needs it. */ \
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fprintf ((FILE), "&0x%lx", l); \
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} while (0)
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/* Output a double value (represented as a C double) as an immediate operand.
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This macro is a 68k-specific macro. */
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#undef ASM_OUTPUT_DOUBLE_OPERAND
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#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \
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do { long l[2]; \
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REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \
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fprintf ((FILE), "&0x%lx%08lx", l[0], l[1]); \
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} while (0)
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/* This is how to store into the string LABEL
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the symbol_ref name of an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class.
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This is suitable for output with `assemble_name'. */
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#undef ASM_GENERATE_INTERNAL_LABEL
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#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
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sprintf ((LABEL), "%s%%%d", (PREFIX), (NUM))
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/* This is how to output an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class. */
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#undef ASM_OUTPUT_INTERNAL_LABEL
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#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
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fprintf (FILE, "%s%%%d:\n", PREFIX, NUM)
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/* This is how to output a reference to a user-level label named NAME.
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`assemble_name' uses this. */
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#undef ASM_OUTPUT_LABELREF
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#define ASM_OUTPUT_LABELREF(FILE,NAME) \
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fprintf (FILE, "%s", NAME)
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/* This is how to output an element of a case-vector that is absolute.
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(The 68000 does not use such vectors,
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but we must define this macro anyway.) */
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#undef ASM_OUTPUT_ADDR_VEC_ELT
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#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
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fprintf (FILE, "\tlong L%%%d\n", (VALUE))
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/* This is how to output an element of a case-vector that is relative. */
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#undef ASM_OUTPUT_ADDR_DIFF_ELT
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#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
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fprintf (FILE, "\tshort L%%%d-L%%%d\n", (VALUE), (REL))
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#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
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fprintf (FILE, "\tswbeg &%d\n%s%%%d:\n", \
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XVECLEN (PATTERN (TABLE), 1), (PREFIX), (NUM))
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/* sysV68 as cannot handle LD%n(%pc,%reg) */
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#define SGS_NO_LI
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/* labelno is not used here */
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#define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\
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asm_fprintf (file, "12(%Rpc,%s.", regname)
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#define ASM_RETURN_CASE_JUMP return "jmp 8(%%pc,%0.w)"
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/* Translate some opcodes to fit the sysV68 assembler syntax. */
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/* The opcodes fdmov and fsmov are guesses. */
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/* cliffm@netcom.com says no need for .w suffix on jumps. */
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#undef ASM_OUTPUT_OPCODE
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#define ASM_OUTPUT_OPCODE(FILE, PTR) \
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{ if ((PTR)[0] == 'j' && (PTR)[1] == 'b') \
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{ ++(PTR); \
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while (*(PTR) != ' ') \
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{ putc (*(PTR), (FILE)); ++(PTR); } \
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} \
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else if ((PTR)[0] == 's') \
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{ \
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if (!strncmp ((PTR), "swap", 4)) \
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{ fprintf ((FILE), "swap.w"); (PTR) += 4; } \
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} \
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else if ((PTR)[0] == 'f') \
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{ \
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if (!strncmp ((PTR), "fmove", 5)) \
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{ fprintf ((FILE), "fmov"); (PTR) += 5; } \
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else if (!strncmp ((PTR), "f%$move", 7)) \
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{ if (TARGET_68040_ONLY) \
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{ fprintf ((FILE), "fsmov"); (PTR) += 7; } \
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else \
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{ fprintf ((FILE), "fmov"); (PTR) += 7; } } \
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else if (!strncmp ((PTR), "f%&move", 7)) \
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{ if (TARGET_68040_ONLY) \
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{ fprintf ((FILE), "fdmov"); (PTR) += 7; } \
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else \
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{ fprintf ((FILE), "fmov"); (PTR) += 7; } } \
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else if (!strncmp ((PTR), "ftst", 4)) \
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{ fprintf ((FILE), "ftest"); (PTR) += 4; } \
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else if (!strncmp ((PTR), "fbne", 4)) \
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{ fprintf ((FILE), "fbneq"); (PTR) += 4; } \
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else if (!strncmp ((PTR), "fsne", 4)) \
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{ fprintf ((FILE), "fsneq"); (PTR) += 4; } \
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} \
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/* MOVE, MOVEA, MOVEQ, MOVEC ==> MOV */ \
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else if ((PTR)[0] == 'm' && (PTR)[1] == 'o' \
|
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&& (PTR)[2] == 'v' && (PTR)[3] == 'e') \
|
||
{ fprintf ((FILE), "mov"); (PTR) += 4; \
|
||
if ((PTR)[0] == 'q' || (PTR)[0] == 'a' \
|
||
|| (PTR)[0] == 'c') (PTR)++; } \
|
||
/* SUB, SUBQ, SUBA, SUBI ==> SUB */ \
|
||
else if ((PTR)[0] == 's' && (PTR)[1] == 'u' \
|
||
&& (PTR)[2] == 'b') \
|
||
{ fprintf ((FILE), "sub"); (PTR) += 3; \
|
||
if ((PTR)[0] == 'q' || (PTR)[0] == 'i' \
|
||
|| (PTR)[0] == 'a') (PTR)++; } \
|
||
/* CMP, CMPA, CMPI, CMPM ==> CMP */ \
|
||
else if ((PTR)[0] == 'c' && (PTR)[1] == 'm' \
|
||
&& (PTR)[2] == 'p') \
|
||
{ fprintf ((FILE), "cmp"); (PTR) += 3; \
|
||
if ((PTR)[0] == 'a' || (PTR)[0] == 'i' \
|
||
|| (PTR)[0] == 'm') (PTR)++; } \
|
||
}
|
||
|
||
/* phdm@info.ucl.ac.be says to pass SIZE, not ROUNDED. */
|
||
|
||
/* This says how to output an assembler line
|
||
to define a global common symbol. */
|
||
|
||
#undef ASM_OUTPUT_COMMON
|
||
#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
|
||
( fputs ("\tcomm ", (FILE)), \
|
||
assemble_name ((FILE), (NAME)), \
|
||
fprintf ((FILE), ",%u\n", (SIZE)))
|
||
|
||
/* This says how to output an assembler line
|
||
to define a local common symbol. */
|
||
|
||
#undef ASM_OUTPUT_LOCAL
|
||
#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
|
||
( fputs ("\tlcomm ", (FILE)), \
|
||
assemble_name ((FILE), (NAME)), \
|
||
fprintf ((FILE), ",%u\n", (SIZE)))
|
||
|
||
|
||
/* Override usual definitions of SDB output macros.
|
||
These definitions differ only in the absence of the period
|
||
at the beginning of the name of the directive
|
||
and in the use of `~' as the symbol for the current location. */
|
||
|
||
#define PUT_SDB_SCL(a) fprintf(asm_out_file, "\tscl\t%d;", (a))
|
||
#define PUT_SDB_INT_VAL(a) fprintf (asm_out_file, "\tval\t%d;", (a))
|
||
#define PUT_SDB_VAL(a) \
|
||
( fputs ("\tval\t", asm_out_file), \
|
||
output_addr_const (asm_out_file, (a)), \
|
||
fputc (';', asm_out_file))
|
||
|
||
#define PUT_SDB_DEF(a) \
|
||
do { fprintf (asm_out_file, "\tdef\t"); \
|
||
ASM_OUTPUT_LABELREF (asm_out_file, a); \
|
||
fprintf (asm_out_file, ";"); } while (0)
|
||
|
||
#define PUT_SDB_PLAIN_DEF(a) fprintf(asm_out_file,"\tdef\t~%s;",a)
|
||
#define PUT_SDB_ENDEF fputs("\tendef\n", asm_out_file)
|
||
#define PUT_SDB_TYPE(a) fprintf(asm_out_file, "\ttype\t0%o;", a)
|
||
#define PUT_SDB_SIZE(a) fprintf(asm_out_file, "\tsize\t%d;", a)
|
||
#define PUT_SDB_START_DIM fprintf(asm_out_file, "\tdim\t")
|
||
#define PUT_SDB_NEXT_DIM(a) fprintf(asm_out_file, "%d,", a)
|
||
#define PUT_SDB_LAST_DIM(a) fprintf(asm_out_file, "%d;", a)
|
||
|
||
#define PUT_SDB_TAG(a) \
|
||
do { fprintf (asm_out_file, "\ttag\t"); \
|
||
ASM_OUTPUT_LABELREF (asm_out_file, a); \
|
||
fprintf (asm_out_file, ";"); } while (0)
|
||
|
||
#define PUT_SDB_BLOCK_START(LINE) \
|
||
fprintf (asm_out_file, \
|
||
"\tdef\t~bb;\tval\t~;\tscl\t100;\tline\t%d;\tendef\n", \
|
||
(LINE))
|
||
|
||
#define PUT_SDB_BLOCK_END(LINE) \
|
||
fprintf (asm_out_file, \
|
||
"\tdef\t~eb;\tval\t~;\tscl\t100;\tline\t%d;\tendef\n", \
|
||
(LINE))
|
||
|
||
#define PUT_SDB_FUNCTION_START(LINE) \
|
||
fprintf (asm_out_file, \
|
||
"\tdef\t~bf;\tval\t~;\tscl\t101;\tline\t%d;\tendef\n", \
|
||
(LINE))
|
||
|
||
#define PUT_SDB_FUNCTION_END(LINE) \
|
||
fprintf (asm_out_file, \
|
||
"\tdef\t~ef;\tval\t~;\tscl\t101;\tline\t%d;\tendef\n", \
|
||
(LINE))
|
||
|
||
#define PUT_SDB_EPILOGUE_END(NAME) \
|
||
fprintf (asm_out_file, \
|
||
"\tdef\t%s;\tval\t~;\tscl\t-1;\tendef\n", \
|
||
(NAME))
|
||
|
||
#define SDB_GENERATE_FAKE(BUFFER, NUMBER) \
|
||
sprintf ((BUFFER), "~%dfake", (NUMBER));
|
||
|
||
/* Define subroutines to call to handle multiply, divide, and remainder.
|
||
Use the subroutines that the sysV68's library provides.
|
||
The `*' prevents an underscore from being prepended by the compiler. */
|
||
/* The '*' is also used by INIT_CUMULATIVE_ARGS */
|
||
|
||
#define DIVSI3_LIBCALL "*ldiv%%"
|
||
#define UDIVSI3_LIBCALL "*uldiv%%"
|
||
#define MODSI3_LIBCALL "*lrem%%"
|
||
#define UMODSI3_LIBCALL "*ulrem%%"
|
||
#define MULSI3_LIBCALL "*lmul%%"
|
||
|
||
struct sysV68_cumulative_args
|
||
{
|
||
int offset;
|
||
int libcall;
|
||
};
|
||
|
||
#undef CUMULATIVE_ARGS
|
||
#define CUMULATIVE_ARGS struct sysV68_cumulative_args
|
||
|
||
#undef INIT_CUMULATIVE_ARGS
|
||
#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) \
|
||
do {(CUM).offset = 0;\
|
||
(CUM).libcall = (LIBNAME) && (*XSTR((LIBNAME), 0) == '*');} while(0)
|
||
|
||
#undef FUNCTION_ARG_ADVANCE
|
||
#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
|
||
((CUM).offset += ((MODE) != BLKmode \
|
||
? (GET_MODE_SIZE (MODE) + 3) & ~3 \
|
||
: (int_size_in_bytes (TYPE) + 3) & ~3))
|
||
|
||
#undef FUNCTION_ARG
|
||
#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
|
||
(((CUM).libcall && (CUM).offset == 0) ? gen_rtx(REG, (MODE), 0)\
|
||
: (TARGET_REGPARM && (CUM).offset < 8) ? gen_rtx (REG, (MODE), (CUM).offset / 4) : 0)
|
||
|
||
#undef FUNCTION_ARG_PARTIAL_NREGS
|
||
#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \
|
||
((TARGET_REGPARM && (CUM).offset < 8 \
|
||
&& 8 < ((CUM).offset + ((MODE) == BLKmode \
|
||
? int_size_in_bytes (TYPE) \
|
||
: GET_MODE_SIZE (MODE)))) \
|
||
? 2 - (CUM).offset / 4 : 0)
|
||
|
||
#undef FUNCTION_ARG_REGNO_P
|
||
#define FUNCTION_ARG_REGNO_P(N) (TARGET_68020 ? 0 : (N) == 0)
|