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Diffstat (limited to 'gcc-1.40/config/tm-att386.h')
| -rw-r--r-- | gcc-1.40/config/tm-att386.h | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/gcc-1.40/config/tm-att386.h b/gcc-1.40/config/tm-att386.h new file mode 100644 index 0000000..c359166 --- /dev/null +++ b/gcc-1.40/config/tm-att386.h @@ -0,0 +1,244 @@ +/* Definitions for AT&T assembler syntax for the Intel 80386. + Copyright (C) 1988 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 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. */ + + +#define TARGET_VERSION fprintf (stderr, " (80386, ATT syntax)"); + +/* Define the syntax of instructions and addresses. */ + +/* Define some concatenation macros to concatenate an opcode + and one, two or three operands. In other assembler syntaxes + they may alter the order of ther operands. */ + +#ifdef __STDC__ +#define AS2(a,b,c) #a " " #b "," #c +#define AS3(a,b,c,d) #a " " #b "," #c "," #d +#define AS1(a,b) #a " " #b +#else +#define AS1(a,b) "a b" +#define AS2(a,b,c) "a b,c" +#define AS3(a,b,c,d) "a b,c,d" +#endif + +/* Output the size-letter for an opcode. + CODE is the letter used in an operand spec (L, B, W, S or Q). + CH is the corresponding lower case letter + (except if CODE is L then CH is `l'). */ +#define PUT_OP_SIZE(CODE,CH,FILE) putc (CH,(FILE)) + +/* Opcode suffix for fullword insn. */ +#define L_SIZE "l" + +/* Prefix for register names in this syntax. */ +#define RP "%" + +/* Prefix for immediate operands in this syntax. */ +#define IP "$" + +/* Prefix for internally generated assembler labels. */ +#define LPREFIX ".L" + +/* Output the prefix for an immediate operand, or for an offset operand. */ +#define PRINT_IMMED_PREFIX(FILE) fputs ("$", (FILE)) +#define PRINT_OFFSET_PREFIX(FILE) fputs ("$", (FILE)) + +/* Indirect call instructions should use `*'. */ +#define USE_STAR 1 + +/* Prefix for a memory-operand X. */ +#define PRINT_PTR(X, FILE) + +/* Delimiters that surround base reg and index reg. */ +#define ADDR_BEG(FILE) putc('(', (FILE)) +#define ADDR_END(FILE) putc(')', (FILE)) + +/* Print an index register (whose rtx is IREG). */ +#define PRINT_IREG(FILE,IREG) \ + do \ + { fputs (",", (FILE)); PRINT_REG ((IREG), 0, (FILE)); } \ + while (0) + +/* Print an index scale factor SCALE. */ +#define PRINT_SCALE(FILE,SCALE) \ + if ((SCALE) != 1) fprintf ((FILE), ",%d", (SCALE)) + +/* Print a base/index combination. + BREG is the base reg rtx, IREG is the index reg rtx, + and SCALE is the index scale factor (an integer). */ + +#define PRINT_B_I_S(BREG,IREG,SCALE,FILE) \ + { ADDR_BEG (FILE); \ + if (BREG) PRINT_REG ((BREG), 0, (FILE)); \ + if ((IREG) != 0) \ + { PRINT_IREG ((FILE), (IREG)); \ + PRINT_SCALE ((FILE), (SCALE)); } \ + ADDR_END (FILE); } + +/* Define the syntax of pseudo-ops, labels and comments. */ + +/* Assembler pseudos to introduce constants of various size. */ + +#define ASM_BYTE "\t.byte " +#define ASM_SHORT "\t.value " +#define ASM_LONG "\t.long " +#define ASM_DOUBLE "\t.double " + +/* String containing the assembler's comment-starter. */ + +#define COMMENT_BEGIN "/" + +/* Output at beginning of assembler file. */ +/* The .file command should always begin the output. */ + +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) \ + do { sdbout_filename ((FILE), main_input_filename); \ + if (optimize) ASM_FILE_START_1 (FILE); \ + } while (0) + +#define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.optim\n") + +/* Output to assembler file text saying following lines + may contain character constants, extra white space, comments, etc. */ + +#define ASM_APP_ON "/APP\n" + +/* Output to assembler file text saying following lines + no longer contain unusual constructs. */ + +#define ASM_APP_OFF "/NO_APP\n" + +/* This is how to output an assembler line + that says to advance the location counter + to a multiple of 2**LOG bytes. */ + +#define ASM_OUTPUT_ALIGN(FILE,LOG) \ + if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG)) + +/* This is how to output an assembler line + that says to advance the location counter by SIZE bytes. */ + +/* The `space' pseudo in the text segment outputs nop insns rather than 0s, + so we must output 0s explicitly in the text segment. */ +#define ASM_OUTPUT_SKIP(FILE,SIZE) \ + if (in_text_section ()) \ + { \ + int i; \ + for (i = 0; i < (SIZE) - 20; i += 20) \ + fprintf (FILE, "\t.byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0\n"); \ + if (i < (SIZE)) \ + { \ + fprintf (FILE, "\t.byte 0"); \ + i++; \ + for (; i < (SIZE); i++) \ + fprintf (FILE, ",0"); \ + fprintf (FILE, "\n"); \ + } \ + } \ + else \ + fprintf ((FILE), "\t.set .,.+%u\n", (SIZE)) + +/* Output before read-only data. */ + +#define TEXT_SECTION_ASM_OP ".text" + +/* Output before writable data. */ + +#define DATA_SECTION_ASM_OP ".data" + +/* Output before uninitialized data. */ + +#define BSS_SECTION_ASM_OP ".bss" + +#define EXTRA_SECTIONS in_bss + +#define EXTRA_SECTION_FUNCTIONS \ +void \ +bss_section () \ +{ \ + if (in_section != in_bss) \ + { \ + fprintf (asm_out_file, "%s\n", BSS_SECTION_ASM_OP); \ + in_section = in_bss; \ + } \ +} + +/* Define the syntax of labels and symbol definitions/declarations. */ + +/* This says how to output an assembler line + to define a global common symbol. */ +/* We don't use ROUNDED because the standard compiler doesn't, + and the linker gives error messages if a common symbol + has more than one length value. */ + +#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ +( fputs (".comm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%u\n", (SIZE))) + +/* This says how to output an assembler line + to define a local common symbol. */ + +/* Note that using bss_section here caused errors + in building shared libraries on system V.3. */ +#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ + do { \ + int align = exact_log2 (ROUNDED); \ + if (align > 2) align = 2; \ + data_section (); \ + ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \ + ASM_OUTPUT_LABEL ((FILE), (NAME)); \ + fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \ + } while (0) + +/* This is how to store into the string BUF + the symbol_ref name of an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. + This is suitable for output with `assemble_name'. */ + +#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ + sprintf ((BUF), ".%s%d", (PREFIX), (NUMBER)) + +/* This is how to output a reference to a user-level label named NAME. */ + +#define ASM_OUTPUT_LABELREF(FILE,NAME) \ + fprintf (FILE, "%s", NAME) + +/* This is how to output an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. */ + +#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ + fprintf (FILE, ".%s%d:\n", PREFIX, NUM) + +/* This is how to output a command to make the user-level label named NAME + defined for reference from other files. */ + +#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ + (fputs (".globl ", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE)) + +/* How to output an ASCII string constant. */ + +#define ASM_OUTPUT_ASCII(FILE, p, size) \ +{ int i=0; \ + while (i < size) \ + { if (i%10 == 0) { if (i!=0) fprintf (FILE, "\n"); \ + fprintf (FILE, ASM_BYTE); } \ + else fprintf (FILE, ","); \ + fprintf (FILE, "0x%x",(p[i++] & 0377)) ;} \ + fprintf (FILE, "\n"); } |