622 lines
23 KiB
C
622 lines
23 KiB
C
/* Definitions of target machine for GNU compiler;
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Charles River Data Systems UNiverse/32.
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Copyright (C) 1987, 1993, 1994, 1996, 1997 Free Software Foundation, Inc.
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Contributed by Gary E. Miller (Gary_Edmunds_Miller@cup.portal.com)
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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, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define MOTOROLA /* Use Motorola syntax rather than "MIT" */
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#define SGS /* Uses SGS assembler */
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#define SGS_SWITCH_TABLES /* Different switch table handling */
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#define SGS_NO_LI /* Suppress jump table label usage */
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#define CRDS /* Charles River Data Systems assembler */
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#include "m68k/m68k.h"
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/* Without STRUCTURE_SIZE_BOUNDARY, we can't ensure that structures are
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aligned such that we can correctly extract bitfields from them.
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Someone should check whether the usual compiler on the crds machine
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provides the equivalent behavior of STRUCTURE_SIZE_BOUNDARY. */
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/* Set to 16 because all other m68k targets have it so */
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#define STRUCTURE_SIZE_BOUNDARY 16
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/* See m68k.h. 0 means 680[01]0 with no 68881. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT 0
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/* Don't try using XFmode. */
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#undef LONG_DOUBLE_TYPE_SIZE
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#define LONG_DOUBLE_TYPE_SIZE 64
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/* special flags to the unos assembler. */
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#undef ASM_SPEC
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#define ASM_SPEC "-g"
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#undef LIB_SPEC
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#define LIB_SPEC "%{!p:%{!pg:-lunos}}%{p:-lc_p}%{pg:-lc_p}"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{pg:gcrt0.o%s}%{!pg:%{p:mc68rt0.o%s}%{!p:c68rt0.o%s}}"
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/* CC1 spec */
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#if 0
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/* c.sac only used in _s_call_r() in libunos.a and malloc() in libmalloc.a */
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/* so we do not need to bother ! */
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#define CC1_SPEC "-fpcc-struct-return"
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#endif
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/* -O2 for MAX optimization */
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#undef CC1_SPEC
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#define CC1_SPEC "%{O2:-fstrength-reduce}"
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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 UNOS casm has no debugging :-( */
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/* UNOS need stack probe :-( */
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#if 0
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#define HAVE_probe 1
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#define gen_probe() gen_rtx(ASM_INPUT, VOIDmode, "tstb -2048(sp)\t;probe\n")
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#else
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#undef NEED_PROBE
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#define NEED_PROBE (-2048)
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#endif
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/* use memcpy, memset instead of bcopy, etc. */
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#define TARGET_MEM_FUNCTIONS
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/* Don't try to define `gcc_compiled.' since the assembler might not
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accept symbols with periods and GDB doesn't run on this machine anyway. */
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#define ASM_IDENTIFY_GCC(FILE)
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/* Define __HAVE_68881__ in preprocessor if -m68881 is specified.
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This will control the use of inline 68881 insns in certain macros. */
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#undef CPP_SPEC
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#define CPP_SPEC "%{m68881:-D__HAVE_68881__}"
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/* Names to predefine in the preprocessor for this target machine. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dmc68k -DM68000 -Dmc68000 -Dunos -Dunix -D__motorola__ -Asystem(unix) -Acpu(m68k) -Amachine(m68k)"
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/* Register in which address to store a structure value
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is passed to a function. */
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/* unos uses ".comm c.sac" returns &c.sac in d0 */
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/* make pointer to c.sac ?
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#undef STRUCT_VALUE_REGNUM
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#define STRUCT_VALUE gen_rtx(MEM, Pmode, gen_rtx( , , ) )
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*/
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#define BSS_SECTION_ASM_OP ".bss"
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/* Specify how to pad function arguments.
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Value should be `upward', `downward' or `none'.
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Same as the default, except no padding for large or variable-size args. */
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#define FUNCTION_ARG_PADDING(MODE, TYPE) \
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(((MODE) == BLKmode \
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? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \
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&& int_size_in_bytes (TYPE) < PARM_BOUNDARY / BITS_PER_UNIT) \
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: GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
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? downward : none)
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/* Override parts of m68k.h to fit the CRuDS assembler. */
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (68k, CRDS/UNOS)");
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/* Specify extra dir to search for include files. */
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#define SYSTEM_INCLUDE_DIR "/include"
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/* Control the assembler format that we output. */
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/* Output at beginning of assembler file. */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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fprintf (FILE, ";#NO_APP\n");
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/* Output to assembler file text saying following lines
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may contain character constants, extra white space, comments, etc. */
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#undef ASM_APP_ON
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#define ASM_APP_ON ";#APP\n"
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/* Output to assembler file text saying following lines
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no longer contain unusual constructs. */
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#undef ASM_APP_OFF
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#define ASM_APP_OFF ";#NO_APP\n"
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/* The prefix for immediate operands. */
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#undef IMMEDIATE_PREFIX
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#define IMMEDIATE_PREFIX "$"
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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, "\t.long 0x%x, 0x%x\n", l[0], l[1]); \
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} while (0)
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/*unos has no .skip :-( */
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#undef ASM_OUTPUT_SKIP
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#define ASM_OUTPUT_SKIP(FILE,SIZE) \
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fprintf (FILE, "\t. = . + %u\n", (SIZE));
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/* This says how to output an assembler line
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to define a local common symbol. */
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/* should use bss_section instead of data_section but this makes casm die ? */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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{ data_section (); \
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if ((SIZE) > 1) fprintf (FILE, "\t.even\n"); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ":\t. = . + %u\n", (ROUNDED));}
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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, "\tmovel %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, "\tmovel (sp)+,%s\n", reg_names[REGNO])
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#undef ASM_OUTPUT_ASCII
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#define ASM_OUTPUT_ASCII(FILE, P , SIZE) \
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do { int i; \
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fprintf ((FILE), "\t.ascii \""); \
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for (i = 0; i < (SIZE); i++) \
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{ \
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register int c = (P)[i]; \
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if (i != 0 && (i / 200) * 200 == i) \
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fprintf ((FILE), "\"\n\t.ascii \""); \
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if (c >= ' ' && c < 0177) { \
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if (c != '\"' && c != '\\') { \
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putc (c, (FILE)); \
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continue; \
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} \
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} \
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/* brain dead asm doesn't understand char escapes */ \
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fprintf ((FILE), "\"\n\t.byte\t%d\n\t.ascii \"", c); \
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} \
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fprintf ((FILE), "\"\n"); \
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} while (0)
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/* Change all JBxx to Bxx. Also change all DBRA to DBF.
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Also change divs.l, etc., to divs, etc. But don't change divsl.l. */
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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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else if ((PTR)[0] == 'd') \
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{ \
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if (!strncmp ((PTR), "dbra", 4)) \
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{ fprintf ((FILE), "dbf"); (PTR) += 4; } \
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else if (!strncmp ((PTR), "div", 3) && (PTR)[5] == ' ') \
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{ fprintf ((FILE), "div%c", (PTR)[3]); (PTR) += 6; } \
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} \
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}
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#if 0
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/* Print operand X (an rtx) in assembler syntax to file FILE.
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CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
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For `%' followed by punctuation, CODE is the punctuation and X is null.
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On the 68000, we use several CODE characters:
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'.' for dot needed in Motorola-style opcode names.
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'-' for an operand pushing on the stack:
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sp@-, -(sp) or -(%sp) depending on the style of syntax.
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'+' for an operand pushing on the stack:
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sp@+, (sp)+ or (%sp)+ depending on the style of syntax.
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'@' for a reference to the top word on the stack:
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sp@, (sp) or (%sp) depending on the style of syntax.
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'#' for an immediate operand prefix (# in MIT and Motorola syntax
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but & in SGS syntax, $ in unos syntax).
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'!' for the fpcr register (used in some float-to-fixed conversions).
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'b' for byte insn (no effect, on the Sun; this is for the ISI).
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'd' to force memory addressing to be absolute, not relative.
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'f' for float insn (print a CONST_DOUBLE as a float rather than in hex)
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'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather
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than directly). Second part of 'y' below.
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'x' for float insn (print a CONST_DOUBLE as a float rather than in hex),
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or print pair of registers as rx:ry.
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'y' for a FPA insn (print pair of registers as rx:ry). This also outputs
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CONST_DOUBLE's as SunFPA constant RAM registers if
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possible, so it should not be used except for the SunFPA. */
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#undef PRINT_OPERAND_PUNCT_VALID_P
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#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
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((CODE) == '.' || (CODE) == '#' || (CODE) == '-' \
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|| (CODE) == '+' || (CODE) == '@' || (CODE) == '!')
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#undef PRINT_OPERAND
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#define PRINT_OPERAND(FILE, X, CODE) \
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{ int i; \
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if (CODE == '.') ; \
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else if (CODE == '#') fprintf (FILE, "$"); \
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else if (CODE == '-') fprintf (FILE, "-(sp)"); \
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else if (CODE == '+') fprintf (FILE, "(sp)+"); \
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else if (CODE == '@') fprintf (FILE, "(sp)"); \
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else if (CODE == '!') fprintf (FILE, "fpcr"); \
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else if (CODE == '/') \
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; \
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else if (GET_CODE (X) == REG) \
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{ if (REGNO (X) < 16 && (CODE == 'y' || CODE == 'x') && GET_MODE (X) == DFmode) \
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fprintf (FILE, "%s:%s", reg_names[REGNO (X)], reg_names[REGNO (X)+1]); \
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else \
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fprintf (FILE, "%s", reg_names[REGNO (X)]); \
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} \
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else if (GET_CODE (X) == MEM) \
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{ \
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output_address (XEXP (X, 0)); \
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if (CODE == 'd' && ! TARGET_68020 \
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&& CONSTANT_ADDRESS_P (XEXP (X, 0))) \
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/* fprintf (FILE, ".l") */; \
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} \
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else if ((CODE == 'y' || CODE == 'w') \
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&& GET_CODE(X) == CONST_DOUBLE \
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&& (i = standard_sun_fpa_constant_p (X))) \
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fprintf (FILE, "%%%d", i & 0x1ff); \
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else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \
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{ REAL_VALUE_TYPE r; long l; \
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REAL_VALUE_FROM_CONST_DOUBLE (r, X); \
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if (CODE == 'f') \
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ASM_OUTPUT_FLOAT_OPERAND (CODE, FILE, r); \
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else \
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{ REAL_VALUE_TO_TARGET_SINGLE (r, l); \
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fprintf (FILE, "$0x%x", l); } } \
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else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == DFmode) \
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{ REAL_VALUE_TYPE r; \
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REAL_VALUE_FROM_CONST_DOUBLE (r, X); \
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ASM_OUTPUT_DOUBLE_OPERAND (FILE, r); } \
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else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == XFmode) \
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{ REAL_VALUE_TYPE r; \
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REAL_VALUE_FROM_CONST_DOUBLE (r, X); \
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ASM_OUTPUT_LONG_DOUBLE_OPERAND (FILE, r); } \
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else { putc ('$', FILE); output_addr_const (FILE, X); }}
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#endif
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/* Note that this contains a kludge that knows that the only reason
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we have an address (plus (label_ref...) (reg...))
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is in the insn before a tablejump, and we know that m68k.md
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generates a label LInnn: on such an insn. */
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#undef PRINT_OPERAND_ADDRESS
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#define PRINT_OPERAND_ADDRESS(FILE, ADDR) \
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{ register rtx reg1, reg2, breg, ireg; \
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register rtx addr = ADDR; \
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rtx offset; \
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switch (GET_CODE (addr)) \
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{ \
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case REG: \
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fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \
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break; \
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case PRE_DEC: \
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fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \
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break; \
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case POST_INC: \
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fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \
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break; \
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case PLUS: \
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reg1 = 0; reg2 = 0; \
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ireg = 0; breg = 0; \
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offset = 0; \
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if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \
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{ \
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offset = XEXP (addr, 0); \
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addr = XEXP (addr, 1); \
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} \
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else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \
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{ \
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offset = XEXP (addr, 1); \
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addr = XEXP (addr, 0); \
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} \
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if (GET_CODE (addr) != PLUS) ; \
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else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \
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{ \
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reg1 = XEXP (addr, 0); \
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addr = XEXP (addr, 1); \
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} \
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else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \
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{ \
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reg1 = XEXP (addr, 1); \
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addr = XEXP (addr, 0); \
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} \
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else if (GET_CODE (XEXP (addr, 0)) == MULT) \
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{ \
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reg1 = XEXP (addr, 0); \
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addr = XEXP (addr, 1); \
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} \
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else if (GET_CODE (XEXP (addr, 1)) == MULT) \
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{ \
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reg1 = XEXP (addr, 1); \
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addr = XEXP (addr, 0); \
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} \
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else if (GET_CODE (XEXP (addr, 0)) == REG) \
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{ \
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reg1 = XEXP (addr, 0); \
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addr = XEXP (addr, 1); \
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} \
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else if (GET_CODE (XEXP (addr, 1)) == REG) \
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{ \
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reg1 = XEXP (addr, 1); \
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addr = XEXP (addr, 0); \
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} \
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if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \
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|| GET_CODE (addr) == SIGN_EXTEND) \
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{ if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \
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if (offset != 0) { if (addr != 0) abort (); addr = offset; } \
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if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \
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|| GET_CODE (reg1) == MULT)) \
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|| (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \
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{ breg = reg2; ireg = reg1; } \
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else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \
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{ breg = reg1; ireg = reg2; } \
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if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \
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{ int scale = 1; \
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if (GET_CODE (ireg) == MULT) \
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{ scale = INTVAL (XEXP (ireg, 1)); \
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ireg = XEXP (ireg, 0); } \
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if (GET_CODE (ireg) == SIGN_EXTEND) \
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fprintf (FILE, "L%d-LI%d-2(pc,%s.w", \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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reg_names[REGNO (XEXP (ireg, 0))]); \
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else \
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fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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reg_names[REGNO (ireg)]); \
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if (scale != 1) fprintf (FILE, ":%d", scale); \
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putc (')', FILE); \
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break; } \
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if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \
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{ fprintf (FILE, "L%d-LI%d-2(pc,%s.l", \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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CODE_LABEL_NUMBER (XEXP (addr, 0)), \
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reg_names[REGNO (breg)]); \
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putc (')', FILE); \
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break; } \
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if (ireg != 0 || breg != 0) \
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{ int scale = 1; \
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if (breg == 0) \
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abort (); \
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if (addr && GET_CODE (addr) == LABEL_REF) abort (); \
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if (addr != 0) \
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output_addr_const (FILE, addr); \
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fprintf (FILE, "(%s", reg_names[REGNO (breg)]); \
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if (breg != 0 && ireg != 0) \
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putc (',', FILE); \
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if (ireg != 0 && GET_CODE (ireg) == MULT) \
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{ scale = INTVAL (XEXP (ireg, 1)); \
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ireg = XEXP (ireg, 0); } \
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if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \
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fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \
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else if (ireg != 0) \
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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-LI%d-2(pc,%s.l)", \
|
||
CODE_LABEL_NUMBER (XEXP (addr, 0)), \
|
||
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", INTVAL (addr)); \
|
||
else \
|
||
output_addr_const (FILE, addr); \
|
||
}}
|
||
|
||
#define ASM_OUTPUT_SOURCE_FILENAME(FILE, FILENAME) \
|
||
do { fprintf (FILE, "\t; file\t"); \
|
||
output_quoted_string (FILE, FILENAME); \
|
||
fprintf (FILE, "\n"); \
|
||
} while (0)
|
||
|
||
#define ASM_OUTPUT_SOURCE_LINE(FILE, LINENO) \
|
||
fprintf (FILE, "\t; ln\t%d\n", \
|
||
(sdb_begin_function_line \
|
||
? last_linenum - sdb_begin_function_line : 1))
|
||
|
||
/* This macro generates the assembly code for function entry.
|
||
FILE is a stdio stream to output the code to.
|
||
SIZE is an int: how many units of temporary storage to allocate.
|
||
Refer to the array `regs_ever_live' to determine which registers
|
||
to save; `regs_ever_live[I]' is nonzero if register number I
|
||
is ever used in the function. This macro is responsible for
|
||
knowing which registers should not be saved even if used. */
|
||
|
||
/* Note that the order of the bit mask for fmovem is the opposite
|
||
of the order for movem! */
|
||
|
||
#undef FUNCTION_PROLOGUE
|
||
#define FUNCTION_PROLOGUE(FILE, SIZE) \
|
||
{ register int regno; \
|
||
register int mask = 0; \
|
||
extern char call_used_regs[]; \
|
||
int fsize = ((SIZE) + 3) & -4; \
|
||
/* unos stack probe */ \
|
||
if ( fsize > 30000 ) { \
|
||
fprintf (FILE, "\tmovel sp,a0\n"); \
|
||
fprintf (FILE, "\taddl $-%d,a0\n", 2048 + fsize); \
|
||
fprintf (FILE, "\ttstb (a0)\n"); \
|
||
} else { \
|
||
fprintf (FILE, "\ttstb -%d(sp)\n", 2048 + fsize); \
|
||
} \
|
||
if (frame_pointer_needed) \
|
||
{ if (TARGET_68020 || fsize < 0x8000) \
|
||
fprintf (FILE, "\tlink a6,$%d\n", -fsize); \
|
||
else \
|
||
fprintf (FILE, "\tlink a6,$0\n\tsubl $%d,sp\n", fsize); } \
|
||
else if (fsize) \
|
||
{ \
|
||
/* Adding negative number is faster on the 68040. */ \
|
||
if (fsize + 4 < 0x8000) \
|
||
{ \
|
||
fprintf (FILE, "\tadd.w #%d,sp\n", - (fsize + 4)); \
|
||
} \
|
||
else \
|
||
{ \
|
||
fprintf (FILE, "\tadd.l #%d,sp\n", - (fsize + 4)); \
|
||
} \
|
||
} \
|
||
for (regno = 16; regno < 24; regno++) \
|
||
if (regs_ever_live[regno] && ! call_used_regs[regno]) \
|
||
mask |= 1 << (regno - 16); \
|
||
if ((mask & 0xff) != 0) \
|
||
fprintf (FILE, "\tfmovem $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, "\tmovel %s,-(sp)\n", reg_names[15 - exact_log2 (mask)]); \
|
||
else if (mask) fprintf (FILE, "\tmovem $0x%x,-(sp)\n", mask); }
|
||
|
||
/* Must put address in %a0 , not %d0 . -- LGM, 7/15/88 */
|
||
/* UNOS ?? */
|
||
#undef FUNCTION_PROFILER
|
||
#define FUNCTION_PROFILER(FILE, LABEL_NO) \
|
||
fprintf (FILE, "\tmovl &LP%%%d,%%a0\n\tjsr mcount\n", (LABEL_NO))
|
||
|
||
/* This macro generates the assembly code for function exit,
|
||
on machines that need it. If FUNCTION_EPILOGUE is not defined
|
||
then individual return instructions are generated for each
|
||
return statement. Args are same as for FUNCTION_PROLOGUE.
|
||
|
||
The function epilogue should not depend on the current stack pointer!
|
||
It should use the frame pointer only. This is mandatory because
|
||
of alloca; we also take advantage of it to omit stack adjustments
|
||
before returning. */
|
||
|
||
#undef FUNCTION_EPILOGUE
|
||
#define FUNCTION_EPILOGUE(FILE, SIZE) \
|
||
{ register int regno; \
|
||
register int mask, fmask; \
|
||
register int nregs; \
|
||
int offset, foffset, fpoffset; \
|
||
extern char call_used_regs[]; \
|
||
int fsize = ((SIZE) + 3) & -4; \
|
||
int big = 0; \
|
||
nregs = 0; fmask = 0; fpoffset = 0; \
|
||
for (regno = 16; regno < 24; regno++) \
|
||
if (regs_ever_live[regno] && ! call_used_regs[regno]) \
|
||
{ nregs++; fmask |= 1 << (23 - regno); } \
|
||
foffset = fpoffset + 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 || fpoffset)) \
|
||
{ fprintf (FILE, "\tmovel $%d,a0\n", -fsize); \
|
||
fsize = 0, big = 1; } \
|
||
if (exact_log2 (mask) >= 0) { \
|
||
if (big) \
|
||
fprintf (FILE, "\tmovel -%d(a6,a0.l),%s\n", \
|
||
offset + fsize, reg_names[exact_log2 (mask)]); \
|
||
else if (! frame_pointer_needed) \
|
||
fprintf (FILE, "\tmovel (sp)+,%s\n", \
|
||
reg_names[exact_log2 (mask)]); \
|
||
else \
|
||
fprintf (FILE, "\tmovel -%d(a6),%s\n", \
|
||
offset + fsize, reg_names[exact_log2 (mask)]); } \
|
||
else if (mask) { \
|
||
if (big) \
|
||
fprintf (FILE, "\tmovem -%d(a6,a0.l),$0x%x\n", \
|
||
offset + fsize, mask); \
|
||
else if (! frame_pointer_needed) \
|
||
fprintf (FILE, "\tmovem (sp)+,$0x%x\n", mask); \
|
||
else \
|
||
fprintf (FILE, "\tmovem -%d(a6),$0x%x\n", \
|
||
offset + fsize, mask); } \
|
||
if (fmask) { \
|
||
if (big) \
|
||
fprintf (FILE, "\tfmovem -%d(a6,a0.l),$0x%x\n", \
|
||
foffset + fsize, fmask); \
|
||
else if (! frame_pointer_needed) \
|
||
fprintf (FILE, "\tfmovem (sp)+,$0x%x\n", fmask); \
|
||
else \
|
||
fprintf (FILE, "\tfmovem -%d(a6),$0x%x\n", \
|
||
foffset + fsize, fmask); } \
|
||
if (fpoffset != 0) \
|
||
for (regno = 55; regno >= 24; regno--) \
|
||
if (regs_ever_live[regno] && ! call_used_regs[regno]) { \
|
||
if (big) \
|
||
fprintf(FILE, "\tfpmoved -%d(a6,a0.l), %s\n", \
|
||
fpoffset + fsize, reg_names[regno]); \
|
||
else if (! frame_pointer_needed) \
|
||
fprintf(FILE, "\tfpmoved (sp)+, %s\n", \
|
||
reg_names[regno]); \
|
||
else \
|
||
fprintf(FILE, "\tfpmoved -%d(a6), %s\n", \
|
||
fpoffset + fsize, reg_names[regno]); \
|
||
fpoffset -= 8; \
|
||
} \
|
||
if (frame_pointer_needed) \
|
||
fprintf (FILE, "\tunlk a6\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"); }
|
||
|