| /* Assembler interface for targets using CGEN. -*- C -*- |
| CGEN: Cpu tools GENerator |
| |
| THIS FILE IS MACHINE GENERATED WITH CGEN. |
| - the resultant file is machine generated, cgen-asm.in isn't |
| |
| Copyright (C) 1996-2016 Free Software Foundation, Inc. |
| |
| This file is part of libopcodes. |
| |
| This library 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 3, or (at your option) |
| any later version. |
| |
| It 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 this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| |
| |
| /* ??? Eventually more and more of this stuff can go to cpu-independent files. |
| Keep that in mind. */ |
| |
| #include "sysdep.h" |
| #include <stdio.h> |
| #include "ansidecl.h" |
| #include "bfd.h" |
| #include "symcat.h" |
| #include "mep-desc.h" |
| #include "mep-opc.h" |
| #include "opintl.h" |
| #include "xregex.h" |
| #include "libiberty.h" |
| #include "safe-ctype.h" |
| |
| #undef min |
| #define min(a,b) ((a) < (b) ? (a) : (b)) |
| #undef max |
| #define max(a,b) ((a) > (b) ? (a) : (b)) |
| |
| static const char * parse_insn_normal |
| (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); |
| |
| /* -- assembler routines inserted here. */ |
| |
| /* -- asm.c */ |
| |
| #include "elf/mep.h" |
| |
| #define CGEN_VALIDATE_INSN_SUPPORTED |
| #define mep_cgen_insn_supported mep_cgen_insn_supported_asm |
| |
| const char * parse_csrn (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); |
| const char * parse_tpreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); |
| const char * parse_spreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); |
| const char * parse_mep_align (CGEN_CPU_DESC, const char **, enum cgen_operand_type, long *); |
| const char * parse_mep_alignu (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); |
| static const char * parse_signed16 (CGEN_CPU_DESC, const char **, int, long *); |
| static const char * parse_signed16_range (CGEN_CPU_DESC, const char **, int, long *) ATTRIBUTE_UNUSED; |
| static const char * parse_unsigned16 (CGEN_CPU_DESC, const char **, int, unsigned long *); |
| static const char * parse_unsigned16_range (CGEN_CPU_DESC, const char **, int, unsigned long *) ATTRIBUTE_UNUSED; |
| static const char * parse_lo16 (CGEN_CPU_DESC, const char **, int, long *, long); |
| static const char * parse_unsigned7 (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); |
| static const char * parse_zero (CGEN_CPU_DESC, const char **, int, long *); |
| |
| const char * |
| parse_csrn (CGEN_CPU_DESC cd, const char **strp, |
| CGEN_KEYWORD *keyword_table, long *field) |
| { |
| const char *err; |
| unsigned long value; |
| |
| err = cgen_parse_keyword (cd, strp, keyword_table, field); |
| if (!err) |
| return NULL; |
| |
| err = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, & value); |
| if (err) |
| return err; |
| *field = value; |
| return NULL; |
| } |
| |
| /* begin-cop-ip-parse-handlers */ |
| static const char * |
| parse_ivc2_cr (CGEN_CPU_DESC, |
| const char **, |
| CGEN_KEYWORD *, |
| long *) ATTRIBUTE_UNUSED; |
| static const char * |
| parse_ivc2_cr (CGEN_CPU_DESC cd, |
| const char **strp, |
| CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, |
| long *field) |
| { |
| return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr_ivc2, field); |
| } |
| static const char * |
| parse_ivc2_ccr (CGEN_CPU_DESC, |
| const char **, |
| CGEN_KEYWORD *, |
| long *) ATTRIBUTE_UNUSED; |
| static const char * |
| parse_ivc2_ccr (CGEN_CPU_DESC cd, |
| const char **strp, |
| CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, |
| long *field) |
| { |
| return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, field); |
| } |
| /* end-cop-ip-parse-handlers */ |
| |
| const char * |
| parse_tpreg (CGEN_CPU_DESC cd, const char ** strp, |
| CGEN_KEYWORD *keyword_table, long *field) |
| { |
| const char *err; |
| |
| err = cgen_parse_keyword (cd, strp, keyword_table, field); |
| if (err) |
| return err; |
| if (*field != 13) |
| return _("Only $tp or $13 allowed for this opcode"); |
| return NULL; |
| } |
| |
| const char * |
| parse_spreg (CGEN_CPU_DESC cd, const char ** strp, |
| CGEN_KEYWORD *keyword_table, long *field) |
| { |
| const char *err; |
| |
| err = cgen_parse_keyword (cd, strp, keyword_table, field); |
| if (err) |
| return err; |
| if (*field != 15) |
| return _("Only $sp or $15 allowed for this opcode"); |
| return NULL; |
| } |
| |
| const char * |
| parse_mep_align (CGEN_CPU_DESC cd, const char ** strp, |
| enum cgen_operand_type type, long *field) |
| { |
| long lsbs = 0; |
| const char *err; |
| |
| switch (type) |
| { |
| case MEP_OPERAND_PCREL8A2: |
| case MEP_OPERAND_PCREL12A2: |
| case MEP_OPERAND_PCREL17A2: |
| case MEP_OPERAND_PCREL24A2: |
| err = cgen_parse_signed_integer (cd, strp, type, field); |
| break; |
| case MEP_OPERAND_PCABS24A2: |
| case MEP_OPERAND_UDISP7: |
| case MEP_OPERAND_UDISP7A2: |
| case MEP_OPERAND_UDISP7A4: |
| case MEP_OPERAND_UIMM7A4: |
| case MEP_OPERAND_ADDR24A4: |
| err = cgen_parse_unsigned_integer (cd, strp, type, (unsigned long *) field); |
| break; |
| default: |
| abort(); |
| } |
| if (err) |
| return err; |
| switch (type) |
| { |
| case MEP_OPERAND_UDISP7: |
| lsbs = 0; |
| break; |
| case MEP_OPERAND_PCREL8A2: |
| case MEP_OPERAND_PCREL12A2: |
| case MEP_OPERAND_PCREL17A2: |
| case MEP_OPERAND_PCREL24A2: |
| case MEP_OPERAND_PCABS24A2: |
| case MEP_OPERAND_UDISP7A2: |
| lsbs = *field & 1; |
| break; |
| case MEP_OPERAND_UDISP7A4: |
| case MEP_OPERAND_UIMM7A4: |
| case MEP_OPERAND_ADDR24A4: |
| lsbs = *field & 3; |
| break; |
| lsbs = *field & 7; |
| break; |
| default: |
| /* Safe assumption? */ |
| abort (); |
| } |
| if (lsbs) |
| return "Value is not aligned enough"; |
| return NULL; |
| } |
| |
| const char * |
| parse_mep_alignu (CGEN_CPU_DESC cd, const char ** strp, |
| enum cgen_operand_type type, unsigned long *field) |
| { |
| return parse_mep_align (cd, strp, type, (long *) field); |
| } |
| |
| |
| /* Handle %lo(), %tpoff(), %sdaoff(), %hi(), and other signed |
| constants in a signed context. */ |
| |
| static const char * |
| parse_signed16 (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| long *valuep) |
| { |
| return parse_lo16 (cd, strp, opindex, valuep, 1); |
| } |
| |
| static const char * |
| parse_lo16 (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| long *valuep, |
| long signedp) |
| { |
| const char *errmsg; |
| enum cgen_parse_operand_result result_type; |
| bfd_vma value; |
| |
| if (strncasecmp (*strp, "%lo(", 4) == 0) |
| { |
| *strp += 4; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, |
| & result_type, & value); |
| if (**strp != ')') |
| return _("missing `)'"); |
| ++*strp; |
| if (errmsg == NULL |
| && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| value &= 0xffff; |
| if (signedp) |
| *valuep = (long)(short) value; |
| else |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%hi(", 4) == 0) |
| { |
| *strp += 4; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, |
| & result_type, & value); |
| if (**strp != ')') |
| return _("missing `)'"); |
| ++*strp; |
| if (errmsg == NULL |
| && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| value = (value + 0x8000) >> 16; |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%uhi(", 5) == 0) |
| { |
| *strp += 5; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, |
| & result_type, & value); |
| if (**strp != ')') |
| return _("missing `)'"); |
| ++*strp; |
| if (errmsg == NULL |
| && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| value = value >> 16; |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%sdaoff(", 8) == 0) |
| { |
| *strp += 8; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, |
| NULL, & value); |
| if (**strp != ')') |
| return _("missing `)'"); |
| ++*strp; |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%tpoff(", 7) == 0) |
| { |
| *strp += 7; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, |
| NULL, & value); |
| if (**strp != ')') |
| return _("missing `)'"); |
| ++*strp; |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (**strp == '%') |
| return _("invalid %function() here"); |
| |
| return cgen_parse_signed_integer (cd, strp, opindex, valuep); |
| } |
| |
| static const char * |
| parse_unsigned16 (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| unsigned long *valuep) |
| { |
| return parse_lo16 (cd, strp, opindex, (long *) valuep, 0); |
| } |
| |
| static const char * |
| parse_signed16_range (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| signed long *valuep) |
| { |
| const char *errmsg = 0; |
| signed long value; |
| |
| errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); |
| if (errmsg) |
| return errmsg; |
| |
| if (value < -32768 || value > 32767) |
| return _("Immediate is out of range -32768 to 32767"); |
| |
| *valuep = value; |
| return 0; |
| } |
| |
| static const char * |
| parse_unsigned16_range (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| unsigned long *valuep) |
| { |
| const char *errmsg = 0; |
| unsigned long value; |
| |
| errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); |
| if (errmsg) |
| return errmsg; |
| |
| if (value > 65535) |
| return _("Immediate is out of range 0 to 65535"); |
| |
| *valuep = value; |
| return 0; |
| } |
| |
| /* A special case of parse_signed16 which accepts only the value zero. */ |
| |
| static const char * |
| parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep) |
| { |
| const char *errmsg; |
| enum cgen_parse_operand_result result_type; |
| bfd_vma value; |
| |
| /*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/ |
| |
| /* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'. |
| It will fail and cause ry to be listed as an undefined symbol in the |
| listing. */ |
| if (strncmp (*strp, "($", 2) == 0) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| |
| if (strncasecmp (*strp, "%lo(", 4) == 0) |
| { |
| *strp += 4; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, |
| &result_type, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%hi(", 4) == 0) |
| { |
| *strp += 4; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, |
| &result_type, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%uhi(", 5) == 0) |
| { |
| *strp += 5; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, |
| &result_type, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%sdaoff(", 8) == 0) |
| { |
| *strp += 8; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, |
| &result_type, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (strncasecmp (*strp, "%tpoff(", 7) == 0) |
| { |
| *strp += 7; |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, |
| &result_type, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (**strp == '%') |
| return "invalid %function() here"; |
| |
| errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE, |
| &result_type, &value); |
| if (errmsg == NULL |
| && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) |
| return "not zero"; /* any string will do -- will never be seen. */ |
| |
| return errmsg; |
| } |
| |
| static const char * |
| parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp, |
| enum cgen_operand_type opindex, unsigned long *valuep) |
| { |
| const char *errmsg; |
| bfd_vma value; |
| |
| /* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */ |
| |
| if (strncasecmp (*strp, "%tpoff(", 7) == 0) |
| { |
| int reloc; |
| *strp += 7; |
| switch (opindex) |
| { |
| case MEP_OPERAND_UDISP7: |
| reloc = BFD_RELOC_MEP_TPREL7; |
| break; |
| case MEP_OPERAND_UDISP7A2: |
| reloc = BFD_RELOC_MEP_TPREL7A2; |
| break; |
| case MEP_OPERAND_UDISP7A4: |
| reloc = BFD_RELOC_MEP_TPREL7A4; |
| break; |
| default: |
| /* Safe assumption? */ |
| abort (); |
| } |
| errmsg = cgen_parse_address (cd, strp, opindex, reloc, |
| NULL, &value); |
| if (**strp != ')') |
| return "missing `)'"; |
| ++*strp; |
| *valuep = value; |
| return errmsg; |
| } |
| |
| if (**strp == '%') |
| return _("invalid %function() here"); |
| |
| return parse_mep_alignu (cd, strp, opindex, valuep); |
| } |
| |
| static ATTRIBUTE_UNUSED const char * |
| parse_cdisp10 (CGEN_CPU_DESC cd, |
| const char **strp, |
| int opindex, |
| long *valuep) |
| { |
| const char *errmsg = 0; |
| signed long value; |
| long have_zero = 0; |
| int wide = 0; |
| int alignment; |
| |
| switch (opindex) |
| { |
| case MEP_OPERAND_CDISP10A4: |
| alignment = 2; |
| break; |
| case MEP_OPERAND_CDISP10A2: |
| alignment = 1; |
| break; |
| case MEP_OPERAND_CDISP10: |
| default: |
| alignment = 0; |
| break; |
| } |
| |
| if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5) |
| wide = 1; |
| |
| if (strncmp (*strp, "0x0", 3) == 0 |
| || (**strp == '0' && *(*strp + 1) != 'x')) |
| have_zero = 1; |
| |
| errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); |
| if (errmsg) |
| return errmsg; |
| |
| if (wide) |
| { |
| if (value < -512 || value > 511) |
| return _("Immediate is out of range -512 to 511"); |
| } |
| else |
| { |
| if (value < -128 || value > 127) |
| return _("Immediate is out of range -128 to 127"); |
| } |
| |
| if (value & ((1<<alignment)-1)) |
| return _("Value is not aligned enough"); |
| |
| /* If this field may require a relocation then use larger dsp16. */ |
| if (! have_zero && value == 0) |
| return (wide ? _("Immediate is out of range -512 to 511") |
| : _("Immediate is out of range -128 to 127")); |
| |
| *valuep = value; |
| return 0; |
| } |
| |
| /* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */ |
| |
| #define MAXARGS 9 |
| |
| typedef struct |
| { |
| char *name; |
| char *expansion; |
| } macro; |
| |
| typedef struct |
| { |
| const char *start; |
| int len; |
| } arg; |
| |
| macro macros[] = |
| { |
| { "sizeof", "(`1.end + (- `1))"}, |
| { "startof", "(`1 | 0)" }, |
| { "align4", "(`1&(~3))"}, |
| /*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */ |
| /*{ "lo", "(`1 & 0xffff)" }, */ |
| /*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */ |
| /*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */ |
| { 0,0 } |
| }; |
| |
| static char * expand_string (const char *, int); |
| |
| static const char * |
| mep_cgen_expand_macros_and_parse_operand |
| (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); |
| |
| static char * |
| str_append (char *dest, const char *input, int len) |
| { |
| char *new_dest; |
| int oldlen; |
| |
| if (len == 0) |
| return dest; |
| /* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */ |
| oldlen = (dest ? strlen(dest) : 0); |
| new_dest = realloc (dest, oldlen + len + 1); |
| memset (new_dest + oldlen, 0, len + 1); |
| return strncat (new_dest, input, len); |
| } |
| |
| static macro * |
| lookup_macro (const char *name) |
| { |
| macro *m; |
| |
| for (m = macros; m->name; ++m) |
| if (strncmp (m->name, name, strlen(m->name)) == 0) |
| return m; |
| |
| return 0; |
| } |
| |
| static char * |
| expand_macro (arg *args, int narg, macro *mac) |
| { |
| char *result = 0, *rescanned_result = 0; |
| char *e = mac->expansion; |
| char *mark = e; |
| int mac_arg = 0; |
| |
| /* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */ |
| while (*e) |
| { |
| if (*e == '`' && |
| (*e+1) && |
| ((*(e + 1) - '1') <= MAXARGS) && |
| ((*(e + 1) - '1') <= narg)) |
| { |
| result = str_append (result, mark, e - mark); |
| mac_arg = (*(e + 1) - '1'); |
| /* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */ |
| result = str_append (result, args[mac_arg].start, args[mac_arg].len); |
| ++e; |
| mark = e+1; |
| } |
| ++e; |
| } |
| |
| if (mark != e) |
| result = str_append (result, mark, e - mark); |
| |
| if (result) |
| { |
| rescanned_result = expand_string (result, 0); |
| free (result); |
| return rescanned_result; |
| } |
| else |
| return result; |
| } |
| |
| #define IN_TEXT 0 |
| #define IN_ARGS 1 |
| |
| static char * |
| expand_string (const char *in, int first_only) |
| { |
| int num_expansions = 0; |
| int depth = 0; |
| int narg = -1; |
| arg args[MAXARGS]; |
| int state = IN_TEXT; |
| const char *mark = in; |
| macro *pmacro = NULL; |
| char *expansion = 0; |
| char *result = 0; |
| |
| while (*in) |
| { |
| switch (state) |
| { |
| case IN_TEXT: |
| if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0)) |
| { |
| pmacro = lookup_macro (in + 1); |
| if (pmacro) |
| { |
| /* printf("entering state %d at '%s'...\n", state, in); */ |
| result = str_append (result, mark, in - mark); |
| mark = in; |
| in += 1 + strlen (pmacro->name); |
| while (*in == ' ') ++in; |
| if (*in != '(') |
| { |
| state = IN_TEXT; |
| pmacro = NULL; |
| } |
| else |
| { |
| state = IN_ARGS; |
| narg = 0; |
| args[narg].start = in + 1; |
| args[narg].len = 0; |
| mark = in + 1; |
| } |
| } |
| } |
| break; |
| case IN_ARGS: |
| if (depth == 0) |
| { |
| switch (*in) |
| { |
| case ',': |
| narg++; |
| args[narg].start = (in + 1); |
| args[narg].len = 0; |
| break; |
| case ')': |
| state = IN_TEXT; |
| /* printf("entering state %d at '%s'...\n", state, in); */ |
| if (pmacro) |
| { |
| expansion = 0; |
| expansion = expand_macro (args, narg, pmacro); |
| num_expansions++; |
| if (expansion) |
| { |
| result = str_append (result, expansion, strlen (expansion)); |
| free (expansion); |
| } |
| } |
| else |
| { |
| result = str_append (result, mark, in - mark); |
| } |
| pmacro = NULL; |
| mark = in + 1; |
| break; |
| case '(': |
| depth++; |
| /* Fall through. */ |
| default: |
| args[narg].len++; |
| break; |
| } |
| } |
| else |
| { |
| if (*in == ')') |
| depth--; |
| if (narg > -1) |
| args[narg].len++; |
| } |
| |
| } |
| ++in; |
| } |
| |
| if (mark != in) |
| result = str_append (result, mark, in - mark); |
| |
| return result; |
| } |
| |
| #undef IN_ARGS |
| #undef IN_TEXT |
| #undef MAXARGS |
| |
| |
| /* END LIGHTWEIGHT MACRO PROCESSOR. */ |
| |
| const char * mep_cgen_parse_operand |
| (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); |
| |
| const char * |
| mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex, |
| const char ** strp_in, CGEN_FIELDS * fields) |
| { |
| const char * errmsg = NULL; |
| char *str = 0, *hold = 0; |
| const char **strp = 0; |
| |
| /* Set up a new pointer to macro-expanded string. */ |
| str = expand_string (*strp_in, 1); |
| /* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */ |
| |
| hold = str; |
| strp = (const char **)(&str); |
| |
| errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields); |
| |
| /* Now work out the advance. */ |
| if (strlen (str) == 0) |
| *strp_in += strlen (*strp_in); |
| |
| else |
| { |
| if (strstr (*strp_in, str)) |
| /* A macro-expansion was pulled off the front. */ |
| *strp_in = strstr (*strp_in, str); |
| else |
| /* A non-macro-expansion was pulled off the front. */ |
| *strp_in += (str - hold); |
| } |
| |
| if (hold) |
| free (hold); |
| |
| return errmsg; |
| } |
| |
| #define CGEN_ASM_INIT_HOOK (cd->parse_operand = mep_cgen_expand_macros_and_parse_operand); |
| |
| /* -- dis.c */ |
| |
| const char * mep_cgen_parse_operand |
| (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); |
| |
| /* Main entry point for operand parsing. |
| |
| This function is basically just a big switch statement. Earlier versions |
| used tables to look up the function to use, but |
| - if the table contains both assembler and disassembler functions then |
| the disassembler contains much of the assembler and vice-versa, |
| - there's a lot of inlining possibilities as things grow, |
| - using a switch statement avoids the function call overhead. |
| |
| This function could be moved into `parse_insn_normal', but keeping it |
| separate makes clear the interface between `parse_insn_normal' and each of |
| the handlers. */ |
| |
| const char * |
| mep_cgen_parse_operand (CGEN_CPU_DESC cd, |
| int opindex, |
| const char ** strp, |
| CGEN_FIELDS * fields) |
| { |
| const char * errmsg = NULL; |
| /* Used by scalar operands that still need to be parsed. */ |
| long junk ATTRIBUTE_UNUSED; |
| |
| switch (opindex) |
| { |
| case MEP_OPERAND_ADDR24A4 : |
| errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_ADDR24A4, (unsigned long *) (& fields->f_24u8a4n)); |
| break; |
| case MEP_OPERAND_C5RMUIMM20 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RMUIMM20, (unsigned long *) (& fields->f_c5_rmuimm20)); |
| break; |
| case MEP_OPERAND_C5RNMUIMM24 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RNMUIMM24, (unsigned long *) (& fields->f_c5_rnmuimm24)); |
| break; |
| case MEP_OPERAND_CALLNUM : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CALLNUM, (unsigned long *) (& fields->f_callnum)); |
| break; |
| case MEP_OPERAND_CCCC : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CCCC, (unsigned long *) (& fields->f_rm)); |
| break; |
| case MEP_OPERAND_CCRN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & fields->f_ccrn); |
| break; |
| case MEP_OPERAND_CDISP10 : |
| errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10, (long *) (& fields->f_cdisp10)); |
| break; |
| case MEP_OPERAND_CDISP10A2 : |
| errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A2, (long *) (& fields->f_cdisp10)); |
| break; |
| case MEP_OPERAND_CDISP10A4 : |
| errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A4, (long *) (& fields->f_cdisp10)); |
| break; |
| case MEP_OPERAND_CDISP10A8 : |
| errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A8, (long *) (& fields->f_cdisp10)); |
| break; |
| case MEP_OPERAND_CDISP12 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_CDISP12, (long *) (& fields->f_12s20)); |
| break; |
| case MEP_OPERAND_CIMM4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM4, (unsigned long *) (& fields->f_rn)); |
| break; |
| case MEP_OPERAND_CIMM5 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM5, (unsigned long *) (& fields->f_5u24)); |
| break; |
| case MEP_OPERAND_CODE16 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE16, (unsigned long *) (& fields->f_16u16)); |
| break; |
| case MEP_OPERAND_CODE24 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE24, (unsigned long *) (& fields->f_24u4n)); |
| break; |
| case MEP_OPERAND_CP_FLAG : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & junk); |
| break; |
| case MEP_OPERAND_CRN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crn); |
| break; |
| case MEP_OPERAND_CRN64 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crn); |
| break; |
| case MEP_OPERAND_CRNX : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crnx); |
| break; |
| case MEP_OPERAND_CRNX64 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crnx); |
| break; |
| case MEP_OPERAND_CROC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u7); |
| break; |
| case MEP_OPERAND_CROP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u23); |
| break; |
| case MEP_OPERAND_CRPC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u26); |
| break; |
| case MEP_OPERAND_CRPP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u18); |
| break; |
| case MEP_OPERAND_CRQC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u21); |
| break; |
| case MEP_OPERAND_CRQP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u13); |
| break; |
| case MEP_OPERAND_CSRN : |
| errmsg = parse_csrn (cd, strp, & mep_cgen_opval_h_csr, & fields->f_csrn); |
| break; |
| case MEP_OPERAND_CSRN_IDX : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, (unsigned long *) (& fields->f_csrn)); |
| break; |
| case MEP_OPERAND_DBG : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_DEPC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_EPC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_EXC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_HI : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_IMM16P0 : |
| errmsg = parse_unsigned16_range (cd, strp, MEP_OPERAND_IMM16P0, (unsigned long *) (& fields->f_ivc2_imm16p0)); |
| break; |
| case MEP_OPERAND_IMM3P12 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P12, (unsigned long *) (& fields->f_ivc2_3u12)); |
| break; |
| case MEP_OPERAND_IMM3P25 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P25, (unsigned long *) (& fields->f_ivc2_3u25)); |
| break; |
| case MEP_OPERAND_IMM3P4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P4, (unsigned long *) (& fields->f_ivc2_3u4)); |
| break; |
| case MEP_OPERAND_IMM3P5 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P5, (unsigned long *) (& fields->f_ivc2_3u5)); |
| break; |
| case MEP_OPERAND_IMM3P9 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P9, (unsigned long *) (& fields->f_ivc2_3u9)); |
| break; |
| case MEP_OPERAND_IMM4P10 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P10, (unsigned long *) (& fields->f_ivc2_4u10)); |
| break; |
| case MEP_OPERAND_IMM4P4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P4, (unsigned long *) (& fields->f_ivc2_4u4)); |
| break; |
| case MEP_OPERAND_IMM4P8 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P8, (unsigned long *) (& fields->f_ivc2_4u8)); |
| break; |
| case MEP_OPERAND_IMM5P23 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P23, (unsigned long *) (& fields->f_ivc2_5u23)); |
| break; |
| case MEP_OPERAND_IMM5P3 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P3, (unsigned long *) (& fields->f_ivc2_5u3)); |
| break; |
| case MEP_OPERAND_IMM5P7 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P7, (unsigned long *) (& fields->f_ivc2_5u7)); |
| break; |
| case MEP_OPERAND_IMM5P8 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P8, (unsigned long *) (& fields->f_ivc2_5u8)); |
| break; |
| case MEP_OPERAND_IMM6P2 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P2, (unsigned long *) (& fields->f_ivc2_6u2)); |
| break; |
| case MEP_OPERAND_IMM6P6 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P6, (unsigned long *) (& fields->f_ivc2_6u6)); |
| break; |
| case MEP_OPERAND_IMM8P0 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P0, (unsigned long *) (& fields->f_ivc2_8u0)); |
| break; |
| case MEP_OPERAND_IMM8P20 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P20, (unsigned long *) (& fields->f_ivc2_8u20)); |
| break; |
| case MEP_OPERAND_IMM8P4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P4, (unsigned long *) (& fields->f_ivc2_8u4)); |
| break; |
| case MEP_OPERAND_IVC_X_0_2 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_2, (unsigned long *) (& fields->f_ivc2_2u0)); |
| break; |
| case MEP_OPERAND_IVC_X_0_3 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_3, (unsigned long *) (& fields->f_ivc2_3u0)); |
| break; |
| case MEP_OPERAND_IVC_X_0_4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_4, (unsigned long *) (& fields->f_ivc2_4u0)); |
| break; |
| case MEP_OPERAND_IVC_X_0_5 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_5, (unsigned long *) (& fields->f_ivc2_5u0)); |
| break; |
| case MEP_OPERAND_IVC_X_6_1 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_1, (unsigned long *) (& fields->f_ivc2_1u6)); |
| break; |
| case MEP_OPERAND_IVC_X_6_2 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_2, (unsigned long *) (& fields->f_ivc2_2u6)); |
| break; |
| case MEP_OPERAND_IVC_X_6_3 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_3, (unsigned long *) (& fields->f_ivc2_3u6)); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_2 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_3 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_4 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_5 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_6 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC0_7 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_2 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_3 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_4 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_5 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_6 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_ACC1_7 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_CC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_COFA0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_COFA1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_COFR0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_COFR1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_CSAR0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2_CSAR1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); |
| break; |
| case MEP_OPERAND_IVC2C3CCRN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn_c3); |
| break; |
| case MEP_OPERAND_IVC2CCRN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn); |
| break; |
| case MEP_OPERAND_IVC2CRN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_crnx); |
| break; |
| case MEP_OPERAND_IVC2RM : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_ivc2_crm); |
| break; |
| case MEP_OPERAND_LO : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_LP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_MB0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_MB1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_ME0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_ME1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_NPC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_OPT : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_PCABS24A2 : |
| errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_PCABS24A2, (unsigned long *) (& fields->f_24u5a2n)); |
| break; |
| case MEP_OPERAND_PCREL12A2 : |
| errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL12A2, (long *) (& fields->f_12s4a2)); |
| break; |
| case MEP_OPERAND_PCREL17A2 : |
| errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL17A2, (long *) (& fields->f_17s16a2)); |
| break; |
| case MEP_OPERAND_PCREL24A2 : |
| errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL24A2, (long *) (& fields->f_24s5a2n)); |
| break; |
| case MEP_OPERAND_PCREL8A2 : |
| errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL8A2, (long *) (& fields->f_8s8a2)); |
| break; |
| case MEP_OPERAND_PSW : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_R0 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_R1 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_RL : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl); |
| break; |
| case MEP_OPERAND_RL5 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl5); |
| break; |
| case MEP_OPERAND_RM : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); |
| break; |
| case MEP_OPERAND_RMA : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); |
| break; |
| case MEP_OPERAND_RN : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RN3 : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3C : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3L : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3S : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3UC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3UL : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RN3US : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); |
| break; |
| case MEP_OPERAND_RNC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RNL : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RNS : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RNUC : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RNUL : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_RNUS : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); |
| break; |
| case MEP_OPERAND_SAR : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); |
| break; |
| case MEP_OPERAND_SDISP16 : |
| errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SDISP16, (long *) (& fields->f_16s16)); |
| break; |
| case MEP_OPERAND_SIMM16 : |
| errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SIMM16, (long *) (& fields->f_16s16)); |
| break; |
| case MEP_OPERAND_SIMM16P0 : |
| errmsg = parse_signed16_range (cd, strp, MEP_OPERAND_SIMM16P0, (long *) (& fields->f_ivc2_simm16p0)); |
| break; |
| case MEP_OPERAND_SIMM6 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM6, (long *) (& fields->f_6s8)); |
| break; |
| case MEP_OPERAND_SIMM8 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8, (long *) (& fields->f_8s8)); |
| break; |
| case MEP_OPERAND_SIMM8P0 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P0, (long *) (& fields->f_ivc2_8s0)); |
| break; |
| case MEP_OPERAND_SIMM8P20 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P20, (long *) (& fields->f_ivc2_8s20)); |
| break; |
| case MEP_OPERAND_SIMM8P4 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P4, (long *) (& fields->f_ivc2_8s4)); |
| break; |
| case MEP_OPERAND_SP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_SPR : |
| errmsg = parse_spreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_TP : |
| errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_TPR : |
| errmsg = parse_tpreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); |
| break; |
| case MEP_OPERAND_UDISP2 : |
| errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_UDISP2, (long *) (& fields->f_2u6)); |
| break; |
| case MEP_OPERAND_UDISP7 : |
| errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7, (unsigned long *) (& fields->f_7u9)); |
| break; |
| case MEP_OPERAND_UDISP7A2 : |
| errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A2, (unsigned long *) (& fields->f_7u9a2)); |
| break; |
| case MEP_OPERAND_UDISP7A4 : |
| errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A4, (unsigned long *) (& fields->f_7u9a4)); |
| break; |
| case MEP_OPERAND_UIMM16 : |
| errmsg = parse_unsigned16 (cd, strp, MEP_OPERAND_UIMM16, (unsigned long *) (& fields->f_16u16)); |
| break; |
| case MEP_OPERAND_UIMM2 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM2, (unsigned long *) (& fields->f_2u10)); |
| break; |
| case MEP_OPERAND_UIMM24 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM24, (unsigned long *) (& fields->f_24u8n)); |
| break; |
| case MEP_OPERAND_UIMM3 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM3, (unsigned long *) (& fields->f_3u5)); |
| break; |
| case MEP_OPERAND_UIMM4 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM4, (unsigned long *) (& fields->f_4u8)); |
| break; |
| case MEP_OPERAND_UIMM5 : |
| errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM5, (unsigned long *) (& fields->f_5u8)); |
| break; |
| case MEP_OPERAND_UIMM7A4 : |
| errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_UIMM7A4, (unsigned long *) (& fields->f_7u9a4)); |
| break; |
| case MEP_OPERAND_ZERO : |
| errmsg = parse_zero (cd, strp, MEP_OPERAND_ZERO, (long *) (& junk)); |
| break; |
| |
| default : |
| /* xgettext:c-format */ |
| fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); |
| abort (); |
| } |
| |
| return errmsg; |
| } |
| |
| cgen_parse_fn * const mep_cgen_parse_handlers[] = |
| { |
| parse_insn_normal, |
| }; |
| |
| void |
| mep_cgen_init_asm (CGEN_CPU_DESC cd) |
| { |
| mep_cgen_init_opcode_table (cd); |
| mep_cgen_init_ibld_table (cd); |
| cd->parse_handlers = & mep_cgen_parse_handlers[0]; |
| cd->parse_operand = mep_cgen_parse_operand; |
| #ifdef CGEN_ASM_INIT_HOOK |
| CGEN_ASM_INIT_HOOK |
| #endif |
| } |
| |
| |
| |
| /* Regex construction routine. |
| |
| This translates an opcode syntax string into a regex string, |
| by replacing any non-character syntax element (such as an |
| opcode) with the pattern '.*' |
| |
| It then compiles the regex and stores it in the opcode, for |
| later use by mep_cgen_assemble_insn |
| |
| Returns NULL for success, an error message for failure. */ |
| |
| char * |
| mep_cgen_build_insn_regex (CGEN_INSN *insn) |
| { |
| CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); |
| const char *mnem = CGEN_INSN_MNEMONIC (insn); |
| char rxbuf[CGEN_MAX_RX_ELEMENTS]; |
| char *rx = rxbuf; |
| const CGEN_SYNTAX_CHAR_TYPE *syn; |
| int reg_err; |
| |
| syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); |
| |
| /* Mnemonics come first in the syntax string. */ |
| if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) |
| return _("missing mnemonic in syntax string"); |
| ++syn; |
| |
| /* Generate a case sensitive regular expression that emulates case |
| insensitive matching in the "C" locale. We cannot generate a case |
| insensitive regular expression because in Turkish locales, 'i' and 'I' |
| are not equal modulo case conversion. */ |
| |
| /* Copy the literal mnemonic out of the insn. */ |
| for (; *mnem; mnem++) |
| { |
| char c = *mnem; |
| |
| if (ISALPHA (c)) |
| { |
| *rx++ = '['; |
| *rx++ = TOLOWER (c); |
| *rx++ = TOUPPER (c); |
| *rx++ = ']'; |
| } |
| else |
| *rx++ = c; |
| } |
| |
| /* Copy any remaining literals from the syntax string into the rx. */ |
| for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) |
| { |
| if (CGEN_SYNTAX_CHAR_P (* syn)) |
| { |
| char c = CGEN_SYNTAX_CHAR (* syn); |
| |
| switch (c) |
| { |
| /* Escape any regex metacharacters in the syntax. */ |
| case '.': case '[': case '\\': |
| case '*': case '^': case '$': |
| |
| #ifdef CGEN_ESCAPE_EXTENDED_REGEX |
| case '?': case '{': case '}': |
| case '(': case ')': case '*': |
| case '|': case '+': case ']': |
| #endif |
| *rx++ = '\\'; |
| *rx++ = c; |
| break; |
| |
| default: |
| if (ISALPHA (c)) |
| { |
| *rx++ = '['; |
| *rx++ = TOLOWER (c); |
| *rx++ = TOUPPER (c); |
| *rx++ = ']'; |
| } |
| else |
| *rx++ = c; |
| break; |
| } |
| } |
| else |
| { |
| /* Replace non-syntax fields with globs. */ |
| *rx++ = '.'; |
| *rx++ = '*'; |
| } |
| } |
| |
| /* Trailing whitespace ok. */ |
| * rx++ = '['; |
| * rx++ = ' '; |
| * rx++ = '\t'; |
| * rx++ = ']'; |
| * rx++ = '*'; |
| |
| /* But anchor it after that. */ |
| * rx++ = '$'; |
| * rx = '\0'; |
| |
| CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); |
| reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); |
| |
| if (reg_err == 0) |
| return NULL; |
| else |
| { |
| static char msg[80]; |
| |
| regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); |
| regfree ((regex_t *) CGEN_INSN_RX (insn)); |
| free (CGEN_INSN_RX (insn)); |
| (CGEN_INSN_RX (insn)) = NULL; |
| return msg; |
| } |
| } |
| |
| |
| /* Default insn parser. |
| |
| The syntax string is scanned and operands are parsed and stored in FIELDS. |
| Relocs are queued as we go via other callbacks. |
| |
| ??? Note that this is currently an all-or-nothing parser. If we fail to |
| parse the instruction, we return 0 and the caller will start over from |
| the beginning. Backtracking will be necessary in parsing subexpressions, |
| but that can be handled there. Not handling backtracking here may get |
| expensive in the case of the m68k. Deal with later. |
| |
| Returns NULL for success, an error message for failure. */ |
| |
| static const char * |
| parse_insn_normal (CGEN_CPU_DESC cd, |
| const CGEN_INSN *insn, |
| const char **strp, |
| CGEN_FIELDS *fields) |
| { |
| /* ??? Runtime added insns not handled yet. */ |
| const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); |
| const char *str = *strp; |
| const char *errmsg; |
| const char *p; |
| const CGEN_SYNTAX_CHAR_TYPE * syn; |
| #ifdef CGEN_MNEMONIC_OPERANDS |
| /* FIXME: wip */ |
| int past_opcode_p; |
| #endif |
| |
| /* For now we assume the mnemonic is first (there are no leading operands). |
| We can parse it without needing to set up operand parsing. |
| GAS's input scrubber will ensure mnemonics are lowercase, but we may |
| not be called from GAS. */ |
| p = CGEN_INSN_MNEMONIC (insn); |
| while (*p && TOLOWER (*p) == TOLOWER (*str)) |
| ++p, ++str; |
| |
| if (* p) |
| return _("unrecognized instruction"); |
| |
| #ifndef CGEN_MNEMONIC_OPERANDS |
| if (* str && ! ISSPACE (* str)) |
| return _("unrecognized instruction"); |
| #endif |
| |
| CGEN_INIT_PARSE (cd); |
| cgen_init_parse_operand (cd); |
| #ifdef CGEN_MNEMONIC_OPERANDS |
| past_opcode_p = 0; |
| #endif |
| |
| /* We don't check for (*str != '\0') here because we want to parse |
| any trailing fake arguments in the syntax string. */ |
| syn = CGEN_SYNTAX_STRING (syntax); |
| |
| /* Mnemonics come first for now, ensure valid string. */ |
| if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) |
| abort (); |
| |
| ++syn; |
| |
| while (* syn != 0) |
| { |
| /* Non operand chars must match exactly. */ |
| if (CGEN_SYNTAX_CHAR_P (* syn)) |
| { |
| /* FIXME: While we allow for non-GAS callers above, we assume the |
| first char after the mnemonic part is a space. */ |
| /* FIXME: We also take inappropriate advantage of the fact that |
| GAS's input scrubber will remove extraneous blanks. */ |
| if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) |
| { |
| #ifdef CGEN_MNEMONIC_OPERANDS |
| if (CGEN_SYNTAX_CHAR(* syn) == ' ') |
| past_opcode_p = 1; |
| #endif |
| ++ syn; |
| ++ str; |
| } |
| else if (*str) |
| { |
| /* Syntax char didn't match. Can't be this insn. */ |
| static char msg [80]; |
| |
| /* xgettext:c-format */ |
| sprintf (msg, _("syntax error (expected char `%c', found `%c')"), |
| CGEN_SYNTAX_CHAR(*syn), *str); |
| return msg; |
| } |
| else |
| { |
| /* Ran out of input. */ |
| static char msg [80]; |
| |
| /* xgettext:c-format */ |
| sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), |
| CGEN_SYNTAX_CHAR(*syn)); |
| return msg; |
| } |
| continue; |
| } |
| |
| #ifdef CGEN_MNEMONIC_OPERANDS |
| (void) past_opcode_p; |
| #endif |
| /* We have an operand of some sort. */ |
| errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); |
| if (errmsg) |
| return errmsg; |
| |
| /* Done with this operand, continue with next one. */ |
| ++ syn; |
| } |
| |
| /* If we're at the end of the syntax string, we're done. */ |
| if (* syn == 0) |
| { |
| /* FIXME: For the moment we assume a valid `str' can only contain |
| blanks now. IE: We needn't try again with a longer version of |
| the insn and it is assumed that longer versions of insns appear |
| before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ |
| while (ISSPACE (* str)) |
| ++ str; |
| |
| if (* str != '\0') |
| return _("junk at end of line"); /* FIXME: would like to include `str' */ |
| |
| return NULL; |
| } |
| |
| /* We couldn't parse it. */ |
| return _("unrecognized instruction"); |
| } |
| |
| /* Main entry point. |
| This routine is called for each instruction to be assembled. |
| STR points to the insn to be assembled. |
| We assume all necessary tables have been initialized. |
| The assembled instruction, less any fixups, is stored in BUF. |
| Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value |
| still needs to be converted to target byte order, otherwise BUF is an array |
| of bytes in target byte order. |
| The result is a pointer to the insn's entry in the opcode table, |
| or NULL if an error occured (an error message will have already been |
| printed). |
| |
| Note that when processing (non-alias) macro-insns, |
| this function recurses. |
| |
| ??? It's possible to make this cpu-independent. |
| One would have to deal with a few minor things. |
| At this point in time doing so would be more of a curiosity than useful |
| [for example this file isn't _that_ big], but keeping the possibility in |
| mind helps keep the design clean. */ |
| |
| const CGEN_INSN * |
| mep_cgen_assemble_insn (CGEN_CPU_DESC cd, |
| const char *str, |
| CGEN_FIELDS *fields, |
| CGEN_INSN_BYTES_PTR buf, |
| char **errmsg) |
| { |
| const char *start; |
| CGEN_INSN_LIST *ilist; |
| const char *parse_errmsg = NULL; |
| const char *insert_errmsg = NULL; |
| int recognized_mnemonic = 0; |
| |
| /* Skip leading white space. */ |
| while (ISSPACE (* str)) |
| ++ str; |
| |
| /* The instructions are stored in hashed lists. |
| Get the first in the list. */ |
| ilist = CGEN_ASM_LOOKUP_INSN (cd, str); |
| |
| /* Keep looking until we find a match. */ |
| start = str; |
| for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) |
| { |
| const CGEN_INSN *insn = ilist->insn; |
| recognized_mnemonic = 1; |
| |
| #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
| /* Not usually needed as unsupported opcodes |
| shouldn't be in the hash lists. */ |
| /* Is this insn supported by the selected cpu? */ |
| if (! mep_cgen_insn_supported (cd, insn)) |
| continue; |
| #endif |
| /* If the RELAXED attribute is set, this is an insn that shouldn't be |
| chosen immediately. Instead, it is used during assembler/linker |
| relaxation if possible. */ |
| if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) |
| continue; |
| |
| str = start; |
| |
| /* Skip this insn if str doesn't look right lexically. */ |
| if (CGEN_INSN_RX (insn) != NULL && |
| regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) |
| continue; |
| |
| /* Allow parse/insert handlers to obtain length of insn. */ |
| CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); |
| |
| parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); |
| if (parse_errmsg != NULL) |
| continue; |
| |
| /* ??? 0 is passed for `pc'. */ |
| insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, |
| (bfd_vma) 0); |
| if (insert_errmsg != NULL) |
| continue; |
| |
| /* It is up to the caller to actually output the insn and any |
| queued relocs. */ |
| return insn; |
| } |
| |
| { |
| static char errbuf[150]; |
| const char *tmp_errmsg; |
| #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS |
| #define be_verbose 1 |
| #else |
| #define be_verbose 0 |
| #endif |
| |
| if (be_verbose) |
| { |
| /* If requesting verbose error messages, use insert_errmsg. |
| Failing that, use parse_errmsg. */ |
| tmp_errmsg = (insert_errmsg ? insert_errmsg : |
| parse_errmsg ? parse_errmsg : |
| recognized_mnemonic ? |
| _("unrecognized form of instruction") : |
| _("unrecognized instruction")); |
| |
| if (strlen (start) > 50) |
| /* xgettext:c-format */ |
| sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); |
| else |
| /* xgettext:c-format */ |
| sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); |
| } |
| else |
| { |
| if (strlen (start) > 50) |
| /* xgettext:c-format */ |
| sprintf (errbuf, _("bad instruction `%.50s...'"), start); |
| else |
| /* xgettext:c-format */ |
| sprintf (errbuf, _("bad instruction `%.50s'"), start); |
| } |
| |
| *errmsg = errbuf; |
| return NULL; |
| } |
| } |