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Annotation of gcc/tm-sun386.h, revision 1.1

1.1     ! root        1: /* Definitions for Sun assembler syntax for the Intel 80386.
        !             2:    Copyright (C) 1988 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU CC.
        !             5: 
        !             6: GNU CC is distributed in the hope that it will be useful,
        !             7: but WITHOUT ANY WARRANTY.  No author or distributor
        !             8: accepts responsibility to anyone for the consequences of using it
        !             9: or for whether it serves any particular purpose or works at all,
        !            10: unless he says so in writing.  Refer to the GNU CC General Public
        !            11: License for full details.
        !            12: 
        !            13: Everyone is granted permission to copy, modify and redistribute
        !            14: GNU CC, but only under the conditions described in the
        !            15: GNU CC General Public License.   A copy of this license is
        !            16: supposed to have been given to you along with GNU CC so you
        !            17: can know your rights and responsibilities.  It should be in a
        !            18: file named COPYING.  Among other things, the copyright notice
        !            19: and this notice must be preserved on all copies.  */
        !            20: 
        !            21: 
        !            22: #define TARGET_VERSION printf (" (80386, Sun syntax)");
        !            23: 
        !            24: /* Define the syntax of instructions and addresses.  */
        !            25: 
        !            26: /* Define some concatenation macros to concatenate an opcode
        !            27:    and one, two or three operands.  In other assembler syntaxes
        !            28:    they may alter the order of ther operands.  */
        !            29: 
        !            30: #ifdef __STDC__
        !            31: #define AS2(a,b,c) #a " " #b "," #c
        !            32: #define AS3(a,b,c,d) #a " " #b "," #c "," #d
        !            33: #define AS1(a,b) #a " " #b
        !            34: #else
        !            35: #define AS1(a,b) "a b"
        !            36: #define AS2(a,b,c) "a b,c"
        !            37: #define AS3(a,b,c,d) "a b,c,d"
        !            38: #endif  
        !            39: 
        !            40: /* Output the size-letter for an opcode.
        !            41:    CODE is the letter used in an operand spec (L, B, W, S or Q).
        !            42:    CH is the corresponding lower case letter
        !            43:      (except if CODE is L then CH is `l').  */
        !            44: #define PUT_OP_SIZE(CODE,CH,FILE) putc (CH,(FILE))
        !            45: 
        !            46: /* Opcode suffix for fullword insn.  */
        !            47: #define L_SIZE "l"
        !            48: 
        !            49: /* Prefix for register names in this syntax.  */
        !            50: #define RP "%"
        !            51: 
        !            52: /* Prefix for immediate operands in this syntax.  */
        !            53: #define IP "$"
        !            54: 
        !            55: /* Prefix for internally generated assembler labels.  */
        !            56: #define LPREFIX ".L"
        !            57: 
        !            58: /* Output the prefix for an immediate operand, or for an offset operand.  */
        !            59: #define PRINT_IMMED_PREFIX(FILE)  fputs ("$", (FILE))
        !            60: #define PRINT_OFFSET_PREFIX(FILE)  fputs ("$", (FILE))
        !            61: 
        !            62: /* Indirect call instructions should use `*'.  */
        !            63: #define USE_STAR 1
        !            64: 
        !            65: /* Prefix for a memory-operand X.  */
        !            66: #define PRINT_PTR(X, FILE)
        !            67: 
        !            68: /* Delimiters that surround base reg and index reg.  */
        !            69: #define ADDR_BEG(FILE) putc('(', (FILE))
        !            70: #define ADDR_END(FILE) putc(')', (FILE))
        !            71: 
        !            72: /* Print an index register (whose rtx is IREG).  */
        !            73: #define PRINT_IREG(FILE,IREG) \
        !            74:   do                                                           \
        !            75:   { fputs (",", (FILE)); PRINT_REG ((IREG), 0, (FILE)); }      \
        !            76:   while (0)
        !            77:   
        !            78: /* Print an index scale factor SCALE.  */
        !            79: #define PRINT_SCALE(FILE,SCALE) \
        !            80:   if ((SCALE) != 1) fprintf ((FILE), ",%d", (SCALE))
        !            81: 
        !            82: /* Print a base/index combination.
        !            83:    BREG is the base reg rtx, IREG is the index reg rtx,
        !            84:    and SCALE is the index scale factor (an integer).  */
        !            85: 
        !            86: #define PRINT_B_I_S(BREG,IREG,SCALE,FILE) \
        !            87:   { ADDR_BEG (FILE);                           \
        !            88:     if (BREG) PRINT_REG ((BREG), 0, (FILE));   \
        !            89:     if ((IREG) != 0)                           \
        !            90:       { PRINT_IREG ((FILE), (IREG));           \
        !            91:         PRINT_SCALE ((FILE), (SCALE)); }       \
        !            92:     ADDR_END (FILE); }
        !            93: 
        !            94: /* Define the syntax of pseudo-ops, labels and comments.  */
        !            95: 
        !            96: /* Assembler pseudos to introduce constants of various size.  */
        !            97: 
        !            98: #define ASM_BYTE "\t.byte\t"
        !            99: #define ASM_SHORT "\t.value\t"
        !           100: #define ASM_LONG "\t.long\t"
        !           101: #define ASM_DOUBLE "\t.double\t"
        !           102: 
        !           103: /* String containing the assembler's comment-starter.  */
        !           104: 
        !           105: #define COMMENT_BEGIN "/"
        !           106: 
        !           107: /* Output at beginning of assembler file.  */
        !           108: /* The .file command should always begin the output.  */
        !           109: 
        !           110: #undef ASM_FILE_START
        !           111: #define ASM_FILE_START(FILE) \
        !           112:   do { \
        !           113:     extern char *version_string, *language_string; \
        !           114:     fprintf(FILE, "\t.file\t\"%s\"\n", dump_base_name); \
        !           115:     fprintf(FILE, "\t.version\t\"%s %s\"\n", \
        !           116:            language_string, version_string); \
        !           117:     if (optimize) ASM_FILE_START_1 (FILE); \
        !           118:   } while (0)
        !           119: 
        !           120: #define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.optim\n")
        !           121: 
        !           122: /* Output to assembler file text saying following lines
        !           123:    may contain character constants, extra white space, comments, etc.  */
        !           124: 
        !           125: #define ASM_APP_ON "/APP\n"
        !           126: 
        !           127: /* Output to assembler file text saying following lines
        !           128:    no longer contain unusual constructs.  */
        !           129: 
        !           130: #define ASM_APP_OFF "/NO_APP\n"
        !           131: 
        !           132: /* This is how to output an assembler line
        !           133:    that says to advance the location counter
        !           134:    to a multiple of 2**LOG bytes.  */
        !           135: 
        !           136: #define ASM_OUTPUT_ALIGN(FILE,LOG)     \
        !           137:     if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
        !           138: 
        !           139: /* This is how to output an assembler line
        !           140:    that says to advance the location counter by SIZE bytes.  */
        !           141: 
        !           142: #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
        !           143:   fprintf ((FILE), "\t.set\t.,.+%d\n", (SIZE))
        !           144: 
        !           145: /* Output before read-only data.  */
        !           146: 
        !           147: #define TEXT_SECTION_ASM_OP "\t.text"
        !           148: 
        !           149: /* Output before writable data.  */
        !           150: 
        !           151: #define DATA_SECTION_ASM_OP "\t.data"
        !           152: 
        !           153: /* Define the syntax of labels and symbol definitions/declarations.  */
        !           154: 
        !           155: /* This says how to output an assembler line
        !           156:    to define a global common symbol.  */
        !           157: 
        !           158: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
        !           159: ( fputs ("\t.comm\t", (FILE)),                 \
        !           160:   assemble_name ((FILE), (NAME)),              \
        !           161:   fprintf ((FILE), ",%d\n", (SIZE)))
        !           162: 
        !           163: /* This says how to output an assembler line
        !           164:    to define a local common symbol.  */
        !           165: 
        !           166: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
        !           167:   (data_section (),                            \
        !           168:    ASM_OUTPUT_LABEL ((FILE), (NAME)),          \
        !           169:    fprintf ((FILE), "\t.set\t.,.+%d\n", (SIZE)))
        !           170: 
        !           171: /* This is how to store into the string BUF
        !           172:    the symbol_ref name of an internal numbered label where
        !           173:    PREFIX is the class of label and NUM is the number within the class.
        !           174:    This is suitable for output with `assemble_name'.  */
        !           175: 
        !           176: #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \
        !           177:   sprintf ((BUF), ".%s%d", (PREFIX), (NUMBER))
        !           178: 
        !           179: /* This is how to output a reference to a user-level label named NAME.  */
        !           180: 
        !           181: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
        !           182:   fprintf (FILE, "%s", NAME)
        !           183: 
        !           184: /* This is how to output an internal numbered label where
        !           185:    PREFIX is the class of label and NUM is the number within the class.  */
        !           186: 
        !           187: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)     \
        !           188:   fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
        !           189: 
        !           190: /* This is how to output a command to make the user-level label named NAME
        !           191:    defined for reference from other files.  */
        !           192: 
        !           193: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \
        !           194:   (fputs ("\t.globl\t", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE))
        !           195: 
        !           196: /* How to output an ASCII string constant.  */
        !           197: 
        !           198: #define ASM_OUTPUT_ASCII(FILE, p, size) \
        !           199: { int i=0;                                             \
        !           200:   while (i < size)                                     \
        !           201:     { if (i%10 == 0) { if (i!=0) fprintf (FILE, "\n"); \
        !           202:                       fprintf (FILE, ASM_BYTE); }      \
        !           203:       else fprintf (FILE, ",");                                \
        !           204:        fprintf (FILE, "0x%x",(p[i++] & 0377)) ;}       \
        !           205:       fprintf (FILE, "\n"); }

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