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Diffstat (limited to 'gas/config/m68k-parse.h')
| -rw-r--r-- | gas/config/m68k-parse.h | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/gas/config/m68k-parse.h b/gas/config/m68k-parse.h new file mode 100644 index 0000000000..e13134212e --- /dev/null +++ b/gas/config/m68k-parse.h @@ -0,0 +1,283 @@ +/* m68k-parse.h -- header file for m68k assembler + Copyright (C) 1987, 91, 92, 93, 94, 1995 Free Software Foundation, Inc. + + This file is part of GAS, the GNU Assembler. + + GAS 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 2, or (at your option) + any later version. + + GAS 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 GAS; see the file COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#ifndef M68K_PARSE_H +#define M68K_PARSE_H + +/* This header file defines things which are shared between the + operand parser in m68k.y and the m68k assembler proper in + tc-m68k.c. */ + +/* The various m68k registers. */ + +/* DATA and ADDR have to be contiguous, so that reg-DATA gives + 0-7==data reg, 8-15==addr reg for operands that take both types. + + We don't use forms like "ADDR0 = ADDR" here because this file is + likely to be used on an Apollo, and the broken Apollo compiler + gives an `undefined variable' error if we do that, according to + troy@cbme.unsw.edu.au. */ + +#define DATA DATA0 +#define ADDR ADDR0 +#define SP ADDR7 +#define BAD BAD0 +#define BAC BAC0 + +enum m68k_register +{ + DATA0 = 1, /* 1- 8 == data registers 0-7 */ + DATA1, + DATA2, + DATA3, + DATA4, + DATA5, + DATA6, + DATA7, + + ADDR0, + ADDR1, + ADDR2, + ADDR3, + ADDR4, + ADDR5, + ADDR6, + ADDR7, + + FP0, /* Eight FP registers */ + FP1, + FP2, + FP3, + FP4, + FP5, + FP6, + FP7, + + COP0, /* Co-processor #0-#7 */ + COP1, + COP2, + COP3, + COP4, + COP5, + COP6, + COP7, + + PC, /* Program counter */ + ZPC, /* Hack for Program space, but 0 addressing */ + SR, /* Status Reg */ + CCR, /* Condition code Reg */ + + /* These have to be grouped together for the movec instruction to work. */ + USP, /* User Stack Pointer */ + ISP, /* Interrupt stack pointer */ + SFC, + DFC, + CACR, + VBR, + CAAR, + MSP, + ITT0, + ITT1, + DTT0, + DTT1, + MMUSR, + TC, + SRP, + URP, + BUSCR, /* 68060 added these */ + PCR, + ROMBAR, /* mcf5200 added these */ + RAMBAR0, + RAMBAR1, + MBAR, +#define last_movec_reg MBAR + /* end of movec ordering constraints */ + + FPI, + FPS, + FPC, + + DRP, /* 68851 or 68030 MMU regs */ + CRP, + CAL, + VAL, + SCC, + AC, + BAD0, + BAD1, + BAD2, + BAD3, + BAD4, + BAD5, + BAD6, + BAD7, + BAC0, + BAC1, + BAC2, + BAC3, + BAC4, + BAC5, + BAC6, + BAC7, + PSR, /* aka MMUSR on 68030 (but not MMUSR on 68040) + and ACUSR on 68ec030 */ + PCSR, + + IC, /* instruction cache token */ + DC, /* data cache token */ + NC, /* no cache token */ + BC, /* both caches token */ + + TT0, /* 68030 access control unit regs */ + TT1, + + ZDATA0, /* suppressed data registers. */ + ZDATA1, + ZDATA2, + ZDATA3, + ZDATA4, + ZDATA5, + ZDATA6, + ZDATA7, + + ZADDR0, /* suppressed address registers. */ + ZADDR1, + ZADDR2, + ZADDR3, + ZADDR4, + ZADDR5, + ZADDR6, + ZADDR7, +}; + +/* Size information. */ + +enum m68k_size +{ + /* Unspecified. */ + SIZE_UNSPEC, + + /* Byte. */ + SIZE_BYTE, + + /* Word (2 bytes). */ + SIZE_WORD, + + /* Longword (4 bytes). */ + SIZE_LONG +}; + +/* The structure used to hold information about an index register. */ + +struct m68k_indexreg +{ + /* The index register itself. */ + enum m68k_register reg; + + /* The size to use. */ + enum m68k_size size; + + /* The value to scale by. */ + int scale; +}; + +#ifdef OBJ_ELF +/* The type of a PIC expression. */ + +enum pic_relocation +{ + pic_none, /* not pic */ + pic_plt_pcrel, /* @PLTPC */ + pic_got_pcrel, /* @GOTPC */ + pic_plt_off, /* @PLT */ + pic_got_off /* @GOT */ +}; +#endif + +/* The structure used to hold information about an expression. */ + +struct m68k_exp +{ + /* The size to use. */ + enum m68k_size size; + +#ifdef OBJ_ELF + /* The type of pic relocation if any. */ + enum pic_relocation pic_reloc; +#endif + + /* The expression itself. */ + expressionS exp; +}; + +/* The operand modes. */ + +enum m68k_operand_type +{ + IMMED = 1, + ABSL, + DREG, + AREG, + FPREG, + CONTROL, + AINDR, + AINC, + ADEC, + DISP, + BASE, + POST, + PRE, + REGLST +}; + +/* The structure used to hold a parsed operand. */ + +struct m68k_op +{ + /* The type of operand. */ + enum m68k_operand_type mode; + + /* The main register. */ + enum m68k_register reg; + + /* The register mask for mode REGLST. */ + unsigned long mask; + + /* An error message. */ + const char *error; + + /* The index register. */ + struct m68k_indexreg index; + + /* The displacement. */ + struct m68k_exp disp; + + /* The outer displacement. */ + struct m68k_exp odisp; +}; + +#endif /* ! defined (M68K_PARSE_H) */ + +/* The parsing function. */ + +extern int m68k_ip_op PARAMS ((char *, struct m68k_op *)); + +/* Whether register prefixes are optional. */ +extern int flag_reg_prefix_optional; |