diff options
Diffstat (limited to 'opcodes/m32r-dis.c')
| -rw-r--r-- | opcodes/m32r-dis.c | 101 |
1 files changed, 82 insertions, 19 deletions
diff --git a/opcodes/m32r-dis.c b/opcodes/m32r-dis.c index d6d5377..9b0397f 100644 --- a/opcodes/m32r-dis.c +++ b/opcodes/m32r-dis.c @@ -263,12 +263,21 @@ m32r_cgen_init_dis (cd) static void print_normal (cd, dis_info, value, attrs, pc, length) +#ifdef CGEN_PRINT_NORMAL CGEN_CPU_DESC cd; +#else + CGEN_CPU_DESC cd ATTRIBUTE_UNUSED; +#endif PTR dis_info; long value; unsigned int attrs; +#ifdef CGEN_PRINT_NORMAL bfd_vma pc; int length; +#else + bfd_vma pc ATTRIBUTE_UNUSED; + int length ATTRIBUTE_UNUSED; +#endif { disassemble_info *info = (disassemble_info *) dis_info; @@ -289,12 +298,21 @@ print_normal (cd, dis_info, value, attrs, pc, length) static void print_address (cd, dis_info, value, attrs, pc, length) +#ifdef CGEN_PRINT_NORMAL CGEN_CPU_DESC cd; +#else + CGEN_CPU_DESC cd ATTRIBUTE_UNUSED; +#endif PTR dis_info; bfd_vma value; unsigned int attrs; +#ifdef CGEN_PRINT_NORMAL bfd_vma pc; int length; +#else + bfd_vma pc ATTRIBUTE_UNUSED; + int length ATTRIBUTE_UNUSED; +#endif { disassemble_info *info = (disassemble_info *) dis_info; @@ -319,11 +337,11 @@ print_address (cd, dis_info, value, attrs, pc, length) static void print_keyword (cd, dis_info, keyword_table, value, attrs) - CGEN_CPU_DESC cd; + CGEN_CPU_DESC cd ATTRIBUTE_UNUSED; PTR dis_info; CGEN_KEYWORD *keyword_table; long value; - unsigned int attrs; + unsigned int attrs ATTRIBUTE_UNUSED; { disassemble_info *info = (disassemble_info *) dis_info; const CGEN_KEYWORD_ENTRY *ke; @@ -374,43 +392,70 @@ print_insn_normal (cd, dis_info, insn, fields, pc, length) } } -/* Utility to print an insn. - BUF is the base part of the insn, target byte order, BUFLEN bytes long. - The result is the size of the insn in bytes or zero for an unknown insn - or -1 if an error occurs fetching data (memory_error_func will have - been called). */ - +/* Subroutine of print_insn. Reads an insn into the given buffers and updates + the extract info. + Returns 0 if all is well, non-zero otherwise. */ static int -print_insn (cd, pc, info, buf, buflen) +read_insn (cd, pc, info, buf, buflen, ex_info, insn_value) CGEN_CPU_DESC cd; bfd_vma pc; disassemble_info *info; char *buf; int buflen; + CGEN_EXTRACT_INFO *ex_info; + unsigned long *insn_value; { - unsigned long insn_value; - const CGEN_INSN_LIST *insn_list; - CGEN_EXTRACT_INFO ex_info; + int status = (*info->read_memory_func) (pc, buf, buflen, info); + if (status != 0) + { + (*info->memory_error_func) (status, pc, info); + return -1; + } - ex_info.dis_info = info; - ex_info.valid = (1 << (cd->base_insn_bitsize / 8)) - 1; - ex_info.insn_bytes = buf; + ex_info->dis_info = info; + ex_info->valid = (1 << buflen) - 1; + ex_info->insn_bytes = buf; switch (buflen) { case 1: - insn_value = buf[0]; + *insn_value = buf[0]; break; case 2: - insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb16 (buf) : bfd_getl16 (buf); + *insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb16 (buf) : bfd_getl16 (buf); break; case 4: - insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb32 (buf) : bfd_getl32 (buf); + *insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb32 (buf) : bfd_getl32 (buf); break; default: abort (); } + return 0; +} + +/* Utility to print an insn. + BUF is the base part of the insn, target byte order, BUFLEN bytes long. + The result is the size of the insn in bytes or zero for an unknown insn + or -1 if an error occurs fetching data (memory_error_func will have + been called). */ + +static int +print_insn (cd, pc, info, buf, buflen) + CGEN_CPU_DESC cd; + bfd_vma pc; + disassemble_info *info; + char *buf; + int buflen; +{ + unsigned long insn_value; + const CGEN_INSN_LIST *insn_list; + CGEN_EXTRACT_INFO ex_info; + + int rc = read_insn (cd, pc, info, buf, buflen, & ex_info, & insn_value); + if (rc != 0) + return rc; + /* The instructions are stored in hash lists. Pick the first one and keep trying until we find the right one. */ @@ -441,6 +486,22 @@ print_insn (cd, pc, info, buf, buflen) machine insn and extracts the fields. The second pass prints them. */ +#if CGEN_INT_INSN_P + /* Make sure the entire insn is loaded into insn_value. */ + if (CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) + { + unsigned long full_insn_value; + int rc = read_insn (cd, pc, info, buf, + CGEN_INSN_BITSIZE (insn) / 8, + & ex_info, & full_insn_value); + if (rc != 0) + return rc; + length = CGEN_EXTRACT_FN (cd, insn) + (cd, insn, &ex_info, full_insn_value, &fields, pc); + } + else +#endif + length = CGEN_EXTRACT_FN (cd, insn) (cd, insn, &ex_info, insn_value, &fields, pc); /* length < 0 -> error */ @@ -499,7 +560,9 @@ print_insn_m32r (pc, info) disassemble_info *info; { static CGEN_CPU_DESC cd = 0; - static prev_isa,prev_mach,prev_endian; + static int prev_isa; + static int prev_mach; + static int prev_endian; int length; int isa,mach; int endian = (info->endian == BFD_ENDIAN_BIG |