--- /dev/null
+/* Definitions of target machine for GNU compiler for m68k targets using
+ assemblers derived from AT&T "SGS" releases.
+
+ Copyright (C) 1991 Free Software Foundation, Inc.
+
+ Written by Fred Fish (fnf@cygnus.com)
+
+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 1, 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. */
+
+/* Control assembler-syntax conditionals in m68k.md and conditionals in
+ m68k.h. Note that some systems may also require SGS_SWAP_W and/or
+ SGS_SWITCH_TABLES to be defined as well. */
+
+#define MOTOROLA /* Use Motorola syntax rather than "MIT" */
+#define SGS /* Uses SGS assembler */
+#define SGS_CMP_ORDER /* Takes cmp operands in reverse order */
+
+#include "m68k.h"
+
+/* SGS specific assembler pseudo ops. */
+
+#define BYTE_ASM_OP "\t.byte"
+#define WORD_ASM_OP "\t.short"
+#define LONG_ASM_OP "\t.long"
+#define SPACE_ASM_OP "\t.space"
+#define ALIGN_ASM_OP "\t.align"
+#define GLOBAL_ASM_OP "\t.global"
+#define SWBEG_ASM_OP "\t.swbeg"
+#define SET_ASM_OP "\t.set"
+
+#define UNALIGNED_SHORT_ASM_OP "\t.short" /* Used in dwarfout.c */
+#define UNALIGNED_INT_ASM_OP "\t.long" /* Used in dwarfout.c */
+
+#define ASM_PN_FORMAT "%s_%d" /* Format for private names */
+
+/* Here are four prefixes that are used by asm_fprintf to
+ facilitate customization for alternate assembler syntaxes.
+ Machines with no likelihood of an alternate syntax need not
+ define these and need not use asm_fprintf. */
+
+/* The prefix for register names. Note that REGISTER_NAMES
+ is supposed to include this prefix. Also note that this is NOT an
+ fprintf format string, it is a literal string */
+
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+
+/* The prefix for local (compiler generated) labels.
+ These labels will not appear in the symbol table. */
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* The prefix to add to user-visible assembler symbols. */
+
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+
+/* The prefix for immediate operands. */
+
+#undef IMMEDIATE_PREFIX
+#define IMMEDIATE_PREFIX "&"
+
+/* How to refer to registers in assembler output.
+ This sequence is indexed by compiler's hard-register-number.
+ Motorola format uses different register names than defined in m68k.h.
+ We also take this chance to convert 'a6' to 'fp' */
+
+#undef REGISTER_NAMES
+
+#ifndef SUPPORT_SUN_FPA
+
+#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" }
+
+#else /* SUPPORTED_SUN_FPA */
+
+#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", \
+ "%fpa0", "%fpa1", "%fpa2", "%fpa3", "%fpa4", "%fpa5", "%fpa6","%fpa7", \
+ "%fpa8", "%fpa9", "%fpa10","%fpa11","%fpa12","%fpa13","%fpa14","%fpa15", \
+ "%fpa16","%fpa17","%fpa18","%fpa19","%fpa20","%fpa21","%fpa22","%fpa23", \
+ "%fpa24","%fpa25","%fpa26","%fpa27","%fpa28","%fpa29","%fpa30","%fpa31" }
+
+#endif /* defined SUPPORT_SUN_FPA */
+
+/* When using an SGS assembler, modify the name of the artificial label which
+ identifies this file as having been compiled with gcc, and the macro that
+ emits such a label in the assembly output, to use '%' rather than '.' */
+
+#define ASM_IDENTIFY_GCC(FILE) \
+ { fprintf ((FILE), "%s:\n", "gcc2_compiled%"); }
+
+/* This is how to output an assembler line defining an `int' constant. */
+/* The SGS assembler doesn't understand ".word". */
+
+#undef ASM_OUTPUT_SHORT
+#define ASM_OUTPUT_SHORT(FILE,VALUE) \
+( fprintf ((FILE), "%s ", WORD_ASM_OP), \
+ output_addr_const ((FILE), (VALUE)), \
+ fprintf ((FILE), "\n"))
+
+/* This is how to output an assembler line defining a `double' constant. */
+
+#undef ASM_OUTPUT_DOUBLE
+#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
+do { union { double d; long l[2]; } tem; \
+ tem.d = (VALUE); \
+ fprintf((FILE), "%s 0x%x,0x%x\n", LONG_ASM_OP, \
+ tem.l[0], tem.l[1]); \
+ } while (0)
+
+/* This is how to output an assembler line defining a `float' constant. */
+
+#undef ASM_OUTPUT_FLOAT
+#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
+do { union { float f; long l;} tem; \
+ tem.f = (VALUE); \
+ fprintf ((FILE), "%s 0x%x\n", LONG_ASM_OP, tem.l); \
+ } while (0)
+
+/* This is how to output an assembler line that says to advance the
+ location counter to a multiple of 2**LOG bytes. */
+
+#undef ASM_OUTPUT_ALIGN
+#define ASM_OUTPUT_ALIGN(FILE,LOG) \
+ if ((LOG) > 0) \
+ fprintf ((FILE), "%s \t%u\n", ALIGN_ASM_OP, 1 << (LOG)); \
+ else if ((LOG) > 31) \
+ abort ();
+
+/* The routine used to output null terminated string literals. We cannot
+ use the ".string" pseudo op, because it silently truncates strings to
+ 1023 bytes. There is no "partial string op" which works like ".string"
+ but doesn't append a null byte, so we can't chop the input string up
+ into small pieces and use that. Our only remaining alternative is to
+ output the string one byte at a time. */
+
+#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
+{ \
+ register int sp = 0, lp = 0, ch; \
+ fprintf ((FILE), "%s ", BYTE_ASM_OP); \
+ do { \
+ ch = (PTR)[sp]; \
+ if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
+ { \
+ fprintf ((FILE), "'%c", ch); \
+ } \
+ else \
+ { \
+ fprintf ((FILE), "0x%x", ch); \
+ } \
+ if (++sp < (LEN)) \
+ { \
+ if ((sp % 10) == 0) \
+ { \
+ fprintf ((FILE), "\n%s ", BYTE_ASM_OP); \
+ } \
+ else \
+ { \
+ putc (',', (FILE)); \
+ } \
+ } \
+ } while (sp < (LEN)); \
+ putc ('\n', (FILE)); \
+}
+
+
+/* SGS based assemblers don't understand #NO_APP and #APP, so just don't
+ bother emitting them. */
+
+#undef ASM_APP_ON
+#define ASM_APP_ON ""
+
+#undef ASM_APP_OFF
+#define ASM_APP_OFF ""
+
+/* When using SGS derived assemblers, change the "MIT" or "MOTOROLA"
+ to "SGS/AT&T" */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (68k, SGS/AT&T syntax)");
+
+/* This is how to output a command to make the user-level label named NAME
+ defined for reference from other files. */
+
+#undef ASM_GLOBALIZE_LABEL
+#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
+ do { \
+ fprintf ((FILE), "%s ", GLOBAL_ASM_OP); \
+ assemble_name ((FILE), NAME); \
+ fputs ("\n", FILE); \
+ } while (0)
+
+#undef PRINT_OPERAND_PRINT_FLOAT
+#define PRINT_OPERAND_PRINT_FLOAT(CODE,FILE) \
+ asm_fprintf ((FILE), "%I0x%x", u1.i);
+
+#undef ASM_OUTPUT_DOUBLE_OPERAND
+#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \
+ asm_fprintf ((FILE),"%I0x%x%08x", u.i[0], u.i[1]);
+
+/* How to output a block of SIZE zero bytes. Note that the `space' pseudo,
+ when used in the text segment, causes SGS assemblers to output nop insns
+ rather than 0s, so we set ASM_NO_SKIP_IN_TEXT to prevent this. */
+
+#define ASM_NO_SKIP_IN_TEXT 1
+
+#undef ASM_OUTPUT_SKIP
+#define ASM_OUTPUT_SKIP(FILE,SIZE) \
+ fprintf (FILE, "%s %u\n", SPACE_ASM_OP, (SIZE))
+
+/* Translate Motorola opcodes such as `jbeq' into SGS opcodes such
+ as `beq.w'.
+ Delete the `e' in `move...' and `fmove'.
+ Change `ftst' to `ftest'.
+ Change `fbne' to `fbneq'
+ Change `fsne' to `fsneq'
+ Change `divsl' to `tdivs' (32/32 -> 32r:32q)
+ Change `divul' to `tdivu' (32/32 -> 32r:32q)
+ */
+
+#define ASM_OUTPUT_OPCODE(FILE, PTR) \
+{ \
+ extern int flag_pic; \
+ if (!strncmp ((PTR), "jbsr", 4)) { \
+ if (flag_pic) \
+ fprintf ((FILE), "bsr"); \
+ else \
+ fprintf ((FILE),"jsr"); \
+ (PTR) += 4; \
+ } else if ((PTR)[0] == 'j' && (PTR)[1] == 'b') \
+ { ++(PTR); \
+ while (*(PTR) != ' ') \
+ { putc (*(PTR), (FILE)); ++(PTR); } \
+ fprintf ((FILE), ".w"); } \
+/* FMOVE ==> FMOV, (and F%& F%$ translations) */ \
+ else if ((PTR)[0] == 'f') \
+ { \
+ if (!strncmp ((PTR), "fmove", 5)) \
+ { fprintf ((FILE), "fmov"); (PTR) += 5; } \
+ else if (!strncmp ((PTR), "ftst", 4)) \
+ { fprintf ((FILE), "ftest"); (PTR) += 4; } \
+ else if (!strncmp ((PTR), "fbne", 4)) \
+ { fprintf ((FILE), "fbneq"); (PTR) += 4; } \
+ else if (!strncmp ((PTR), "fsne", 4)) \
+ { fprintf ((FILE), "fsneq"); (PTR) += 4; } \
+ else if (!strncmp ((PTR), "f%$move", 7)) \
+ { (PTR) += 7; \
+ if (TARGET_68040_ONLY) \
+ fprintf ((FILE), "fsmov"); \
+ else fprintf ((FILE), "fmov"); } \
+ else if (!strncmp ((PTR), "f%&move", 7)) \
+ { (PTR) += 7; \
+ if (TARGET_68040_ONLY) \
+ fprintf ((FILE), "fdmov"); \
+ else fprintf ((FILE), "fmov"); } \
+ } \
+/* MOVE, MOVEA, MOVEQ, MOVEC ==> MOV */ \
+ else if ((PTR)[0] == 'm' && (PTR)[1] == 'o' \
+ && (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)++; } \
+/* DIVSL ==> TDIVS */ \
+ else if ((PTR)[0] == 'd' && (PTR)[1] == 'i' \
+ && (PTR)[2] == 'v' && (PTR)[3] == 's' \
+ && (PTR)[4] == 'l') \
+ { fprintf ((FILE), "tdivs"); (PTR) += 5; } \
+/* DIVUL ==> TDIVU */ \
+ else if ((PTR)[0] == 'd' && (PTR)[1] == 'i' \
+ && (PTR)[2] == 'v' && (PTR)[3] == 'u' \
+ && (PTR)[4] == 'l') \
+ { fprintf ((FILE), "tdivu"); (PTR) += 5; } \
+}
+
+/* This macro outputs the label at the start of a switch table. The
+ ".swbeg <N>" is an assembler directive that causes the switch table
+ size to be inserted into the object code so that disassemblers, for
+ example, can identify that it is the start of a switch table. */
+
+#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
+ fprintf ((FILE), "%s &%d\n", SWBEG_ASM_OP, XVECLEN (PATTERN (TABLE), 1)); \
+ ASM_OUTPUT_INTERNAL_LABEL((FILE),(PREFIX),(NUM));
+
+/* At end of a switch table, define LDnnn iff the symbol LInnn was defined.
+ Some SGS assemblers have a bug such that "Lnnn-LInnn-2.b(pc,d0.l*2)"
+ fails to assemble. Luckily "Lnnn(pc,d0.l*2)" produces the results
+ we want. This difference can be accommodated by using an assembler
+ define such "LDnnn" to be either "Lnnn-LInnn-2.b", "Lnnn", or any other
+ string, as necessary. This is accomplished via the ASM_OUTPUT_CASE_END
+ macro. */
+
+#undef ASM_OUTPUT_CASE_END
+#define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \
+ if (RTX_INTEGRATED_P (TABLE)) \
+ asm_fprintf (FILE, "%s %LLD%d,%LL%d-%LLI%d-2.b\n", \
+ SET_ASM_OP, (NUM), (NUM), (NUM))
+
+/* This is how to output an element of a case-vector that is relative. */
+
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
+ asm_fprintf (FILE, "%s %LL%d-%LL%d\n", WORD_ASM_OP, VALUE, REL)
+
+/* Currently, JUMP_TABLES_IN_TEXT_SECTION must be defined in order to
+ keep switch tables in the text section. */
+
+#define JUMP_TABLES_IN_TEXT_SECTION 1
+
+/* 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. */
+
+#undef ASM_FORMAT_PRIVATE_NAME
+#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
+( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \
+ sprintf ((OUTPUT), ASM_PN_FORMAT, (NAME), (LABELNO)))
+
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