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Annotation of GNUtools/cctools/as/hppa-aux.h, revision 1.1

1.1     ! root        1: /* hppa-aux.h -- Assembler for the PA - PA-RISC specific support routines
        !             2:    Copyright (C) 1989 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GAS, the GNU Assembler.
        !             5: 
        !             6: GAS is free software; you can redistribute it and/or modify
        !             7: it under the terms of the GNU General Public License as published by
        !             8: the Free Software Foundation; either version 1, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GAS is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public License for more details.
        !            15: 
        !            16: You should have received a copy of the GNU General Public License
        !            17: along with GAS; see the file COPYING.  If not, write to
        !            18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: /*
        !            21:    HP PA-RISC support was contributed by the Center for Software Science
        !            22:    at the University of Utah.
        !            23:  */
        !            24: 
        !            25: /* HP-PA support for Mach-O    ... USV */
        !            26: 
        !            27: #ifndef HPPA_AUX_DEFINED
        !            28: #define HPPA_AUX_DEFINED
        !            29: 
        !            30: typedef enum FPOF { SGL, DBL, ILLEGAL_FMT, QUAD } FP_Operand_Format;
        !            31: 
        !            32: int pa_parse_number();
        !            33: 
        !            34: int pa_parse_fp_cmp_cond();
        !            35: 
        !            36: FP_Operand_Format pa_parse_fp_format();
        !            37: 
        !            38: int pa_parse_nullif();
        !            39: 
        !            40: int pa_parse_nonneg_cmpsub_cmpltr();
        !            41: 
        !            42: int pa_parse_neg_cmpsub_cmpltr();
        !            43: 
        !            44: int pa_parse_nonneg_add_cmpltr();
        !            45: 
        !            46: int pa_parse_neg_add_cmpltr();
        !            47: 
        !            48: /* A structure used during assembly of individual instructions */
        !            49: 
        !            50: struct pa_it {
        !            51:     char    *error;
        !            52:     unsigned long opcode;
        !            53: #ifdef undef
        !            54:     symbol_dictS *nlistp;      /*** used to be:    struct nlist *nlistp; */
        !            55: #else
        !            56:     struct nlist *nlistp;
        !            57: #endif
        !            58:     expressionS exp;
        !            59:     int pcrel;
        !            60:     int pcrel_reloc;
        !            61:     FP_Operand_Format fpof1;   /* Floating Point Operand Format, operand 1 */
        !            62:     FP_Operand_Format fpof2;   /* Floating Point Operand Format, operand 2 */
        !            63:                                /* (used only for class 1 instructions --   */
        !            64:                               /* the conversion instructions)             */
        !            65:     long field_selector;
        !            66:     unsigned int reloc;
        !            67: /*     enum reloc_type_hppa reloc; */
        !            68:     int code;
        !            69:     long arg_reloc;
        !            70: };
        !            71: 
        !            72: extern struct pa_it the_insn;
        !            73:   
        !            74: /*
        !            75:   PA-89 floating point registers are arranged like this:
        !            76: 
        !            77: 
        !            78:   +--------------+--------------+
        !            79:   |   0 or 16L   |  16 or 16R   |
        !            80:   +--------------+--------------+
        !            81:   |   1 or 17L   |  17 or 17R   |
        !            82:   +--------------+--------------+
        !            83:   |              |              |
        !            84: 
        !            85:   .              .              .
        !            86:   .              .              .
        !            87:   .              .              .
        !            88: 
        !            89:   |              |              |
        !            90:   +--------------+--------------+
        !            91:   |  14 or 30L   |  30 or 30R   |
        !            92:   +--------------+--------------+
        !            93:   |  15 or 31L   |  31 or 31R   |
        !            94:   +--------------+--------------+
        !            95: 
        !            96: 
        !            97:   The following is a version of pa_parse_number that
        !            98:   handles the L/R notation and returns the correct
        !            99:   value to put into the instruction register field.
        !           100:   The correct value to put into the instruction is
        !           101:   encoded in the structure 'pa_89_fp_reg_struct'.
        !           102: 
        !           103:  */
        !           104: 
        !           105: struct pa_89_fp_reg_struct {
        !           106:   char number_part;
        !           107:   char L_R_select;
        !           108: };
        !           109: 
        !           110: int need_89_opcode();
        !           111: int pa_89_parse_number();
        !           112: 
        !           113: extern int getAbsoluteExpression(
        !           114:     char *str);
        !           115: extern int evaluateAbsolute(
        !           116:     expressionS exp,
        !           117:     int field_selector);
        !           118: extern int getExpression(
        !           119:     char *str);
        !           120: 
        !           121: #endif /* HPPA_AUX_DEFINED */
        !           122: 
        !           123: /* end hppa-aux.h */

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