Tidy up formatting.
Add -mall-opcodes, -mno-skip-bug, -mno-wrap.
This commit is contained in:
Nick Clifton
parent
c07ab2ec0c
commit
00d2865b83
7 changed files with 206 additions and 80 deletions
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@ -1,3 +1,12 @@
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2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl>
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* elf32-avr.c (bfd_elf32_bfd_reloc_type_lookup):
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Add ATTRIBUTE_UNUSED to unused arguments to avoid warnings.
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(avr_info_to_howto_rela): Likewise.
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(elf32_avr_gc_mark_hook): Likewise.
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(elf32_avr_gc_sweep_hook): Likewise.
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(elf32_avr_relocate_section): Likewise.
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2000-07-03 Mark Elbrecht <snowball3@bigfoot.com>
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* cofflink.c (_bfd_coff_write_global_sym): Turn a weak symbol into
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@ -369,7 +369,7 @@ struct avr_reloc_map
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_type_lookup (abfd, code)
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bfd *abfd;
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bfd *abfd ATTRIBUTE_UNUSED;
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bfd_reloc_code_real_type code;
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{
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unsigned int i;
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@ -389,7 +389,7 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code)
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static void
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avr_info_to_howto_rela (abfd, cache_ptr, dst)
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bfd *abfd;
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bfd *abfd ATTRIBUTE_UNUSED;
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arelent *cache_ptr;
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Elf32_Internal_Rela *dst;
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{
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@ -403,7 +403,7 @@ avr_info_to_howto_rela (abfd, cache_ptr, dst)
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static asection *
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elf32_avr_gc_mark_hook (abfd, info, rel, h, sym)
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bfd *abfd;
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struct bfd_link_info *info;
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struct bfd_link_info *info ATTRIBUTE_UNUSED;
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Elf_Internal_Rela *rel;
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struct elf_link_hash_entry *h;
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Elf_Internal_Sym *sym;
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@ -442,10 +442,10 @@ elf32_avr_gc_mark_hook (abfd, info, rel, h, sym)
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static boolean
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elf32_avr_gc_sweep_hook (abfd, info, sec, relocs)
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bfd *abfd;
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struct bfd_link_info *info;
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asection *sec;
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const Elf_Internal_Rela *relocs;
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bfd *abfd ATTRIBUTE_UNUSED;
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struct bfd_link_info *info ATTRIBUTE_UNUSED;
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asection *sec ATTRIBUTE_UNUSED;
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const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
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{
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/* We don't use got and plt entries for avr. */
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return true;
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@ -717,7 +717,7 @@ avr_final_link_relocate (howto, input_bfd, input_section,
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static boolean
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elf32_avr_relocate_section (output_bfd, info, input_bfd, input_section,
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contents, relocs, local_syms, local_sections)
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bfd *output_bfd;
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bfd *output_bfd ATTRIBUTE_UNUSED;
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struct bfd_link_info *info;
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bfd *input_bfd;
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asection *input_section;
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@ -1,3 +1,24 @@
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2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl>
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* config/tc-avr.c: Change _ () to _() around all strings marked
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for translation (exception from the usual coding style).
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(avr_opt): New struct variable, how the new switches are set.
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(OPTION_MMCU): Define as 'm' and actually use.
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(md_longopts): Add -mall-opcodes, -mno-skip-bug, -mno-wrap.
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(show_mcu_list): New function, display the list of known MCUs.
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(md_show_usage): Document the new switches. Call show_mcu_list.
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(avr_set_arch): Change 'm' to OPTION_MMCU.
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(md_parse_option): Call show_mcu_list if unknown MCU specified.
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Handle the new switches.
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(avr_operands): Disable warnings for undefined combinations of
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operands if -mall-opcodes. Disable warnings for skipping two-word
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instructions if enhanced core or -mno-skip-bug.
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(avr_operand): Accept all addressing modes on avr1 if -mall-opcodes.
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(md_apply_fix3): Reject 8K wrap if >8K or -mno-wrap.
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(md_assemble): Accept opcodes not supported by MCU if -mall-opcodes.
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(avr_ldi_expression): Warn about implicit lo8().
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* config/tc-avr.h (md_pcrel_from_section): Add prototype.
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2000-07-01 Koundinya K <kk@ddeorg.soft.net>
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* configure.in: Add entry for mips-*-sysv4*MP*
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@ -96,6 +96,16 @@ static struct mcu_type_s mcu_types[] =
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static struct mcu_type_s default_mcu = {"avr2", AVR_ISA_2xxx,bfd_mach_avr2};
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static struct mcu_type_s *avr_mcu = &default_mcu;
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/* AVR target-specific switches. */
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struct avr_opt_s
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{
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int all_opcodes; /* -mall-opcodes: accept all known AVR opcodes */
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int no_skip_bug; /* -mno-skip-bug: no warnings for skipping 2-word insns */
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int no_wrap; /* -mno-wrap: reject rjmp/rcall with 8K wrap-around */
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};
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static struct avr_opt_s avr_opt = { 0, 0, 0 };
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const char EXP_CHARS[] = "eE";
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const char FLT_CHARS[] = "dD";
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static void avr_set_arch (int dummy);
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@ -109,6 +119,7 @@ const pseudo_typeS md_pseudo_table[] =
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#define LDI_IMMEDIATE(x) (((x) & 0xf) | (((x) << 4) & 0xf00))
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static void show_mcu_list (FILE *stream);
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static char * skip_space (char * s);
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static char * extract_word (char *from, char *to, int limit);
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static unsigned int avr_operand (struct avr_opcodes_s *opcode,
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@ -150,14 +161,47 @@ static struct hash_control *avr_hash;
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/* Reloc modifiers hash control (hh8,hi8,lo8,pm_xx). */
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static struct hash_control *avr_mod_hash;
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#define OPTION_MMCU (OPTION_MD_BASE + 1)
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#define OPTION_MMCU 'm'
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#define OPTION_ALL_OPCODES (OPTION_MD_BASE + 1)
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#define OPTION_NO_SKIP_BUG (OPTION_MD_BASE + 2)
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#define OPTION_NO_WRAP (OPTION_MD_BASE + 3)
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struct option md_longopts[] = {
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{"mmcu", required_argument, NULL, 'm'},
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{NULL, no_argument, NULL, 0}
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{ "mmcu", required_argument, NULL, OPTION_MMCU },
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{ "mall-opcodes", no_argument, NULL, OPTION_ALL_OPCODES },
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{ "mno-skip-bug", no_argument, NULL, OPTION_NO_SKIP_BUG },
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{ "mno-wrap", no_argument, NULL, OPTION_NO_WRAP },
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{ NULL, no_argument, NULL, 0 }
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};
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size_t md_longopts_size = sizeof(md_longopts);
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/* Display nicely formatted list of known MCU names. */
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static void
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show_mcu_list (FILE *stream)
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{
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int i, x;
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fprintf (stream, _("Known MCU names:"));
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x = 1000;
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for (i = 0; mcu_types[i].name; i++)
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{
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int len = strlen (mcu_types[i].name);
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x += len + 1;
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if (x < 75)
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{
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fprintf (stream, " %s", mcu_types[i].name);
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}
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else
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{
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fprintf (stream, "\n %s", mcu_types[i].name);
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x = len + 2;
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}
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}
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fprintf (stream, "\n");
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}
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static inline char *
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skip_space (s)
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char * s;
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@ -202,9 +246,8 @@ void
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md_show_usage (stream)
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FILE *stream;
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{
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fprintf
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(stream,
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_ ("AVR options:\n"
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fprintf (stream,
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_("AVR options:\n"
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" -mmcu=[avr-name] select microcontroller variant\n"
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" [avr-name] can be:\n"
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" avr1 - AT90S1200, ATtiny1x, ATtiny28\n"
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@ -213,6 +256,13 @@ md_show_usage (stream)
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" avr4 - ATmega83, ATmega85\n"
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" avr5 - ATmega161, ATmega163, ATmega32, AT94K\n"
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" or immediate microcontroller name.\n"));
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fprintf (stream,
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_(" -mall-opcodes accept all AVR opcodes, even if not supported by MCU\n"
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" -mno-skip-bug disable warnings for skipping two-word instructions\n"
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" (default for avr4, avr5)\n"
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" -mno-wrap reject rjmp/rcall instructions with 8K wrap-around\n"
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" (default for avr3, avr5)\n"));
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show_mcu_list (stream);
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}
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static void
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@ -222,7 +272,7 @@ avr_set_arch (dummy)
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char * str;
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str = (char *)alloca (20);
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input_line_pointer = extract_word (input_line_pointer, str, 20);
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md_parse_option ('m', str);
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md_parse_option (OPTION_MMCU, str);
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bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach);
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}
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@ -231,33 +281,51 @@ md_parse_option (c, arg)
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int c;
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char *arg;
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{
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char *t = alloca (strlen (arg) + 1);
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char *s = t;
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char *arg1 = arg;
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do
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*t = tolower (*arg1++);
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while (*t++);
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if (c == 'm')
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switch (c)
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{
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int i;
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case OPTION_MMCU:
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{
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int i;
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char *s = alloca (strlen (arg) + 1);
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for (i = 0; mcu_types[i].name; ++i)
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if (strcmp (mcu_types[i].name, s) == 0)
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break;
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{
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char *t = s;
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char *arg1 = arg;
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if (!mcu_types[i].name)
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as_fatal (_ ("unknown MCU: %s\n"), arg);
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do
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*t = tolower(*arg1++);
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while (*t++);
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}
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/* It is OK to redefine mcu type within the same avr[1-5] bfd machine
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type - this for allows passing -mmcu=... via gcc ASM_SPEC as well
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as .arch ... in the asm output at the same time. */
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for (i = 0; mcu_types[i].name; ++i)
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if (strcmp (mcu_types[i].name, s) == 0)
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break;
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if (avr_mcu == &default_mcu || avr_mcu->mach == mcu_types[i].mach)
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avr_mcu = &mcu_types[i];
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else
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as_fatal (_ ("redefinition of mcu type `%s' to `%s'"),
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avr_mcu->name, mcu_types[i].name);
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if (!mcu_types[i].name)
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{
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show_mcu_list (stderr);
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as_fatal (_("unknown MCU: %s\n"), arg);
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}
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/* It is OK to redefine mcu type within the same avr[1-5] bfd machine
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type - this for allows passing -mmcu=... via gcc ASM_SPEC as well
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as .arch ... in the asm output at the same time. */
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if (avr_mcu == &default_mcu || avr_mcu->mach == mcu_types[i].mach)
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avr_mcu = &mcu_types[i];
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else
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as_fatal (_("redefinition of mcu type `%s' to `%s'"),
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avr_mcu->name, mcu_types[i].name);
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return 1;
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}
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case OPTION_ALL_OPCODES:
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avr_opt.all_opcodes = 1;
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return 1;
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case OPTION_NO_SKIP_BUG:
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avr_opt.no_skip_bug = 1;
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return 1;
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case OPTION_NO_WRAP:
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avr_opt.no_wrap = 1;
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return 1;
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}
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return 0;
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@ -413,7 +481,7 @@ avr_operands (opcode, line)
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str = skip_space (str);
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if (*str++ != ',')
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as_bad (_ ("`,' required"));
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as_bad (_("`,' required"));
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str = skip_space (str);
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reg2 = avr_operand (opcode, where, op, &str);
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@ -429,22 +497,29 @@ avr_operands (opcode, line)
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bin |= reg1 | reg2;
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}
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/* detect undefined combinations (like lpm r31,Z+) */
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if (((bin & 0xFDEF) == 0x91AD) || ((bin & 0xFDEF) == 0x91AE) ||
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((bin & 0xFDEF) == 0x91C9) || ((bin & 0xFDEF) == 0x91CA) ||
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((bin & 0xFDEF) == 0x91E1) || ((bin & 0xFDEF) == 0x91E2) ||
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((bin & 0xFFED) == 0x91E5))
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as_warn( _("undefined combination of operands"));
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if (!avr_opt.all_opcodes)
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{
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/* Detect undefined combinations (like ld r31,Z+). */
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if (((bin & 0xFDEF) == 0x91AD) || ((bin & 0xFDEF) == 0x91AE) ||
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((bin & 0xFDEF) == 0x91C9) || ((bin & 0xFDEF) == 0x91CA) ||
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((bin & 0xFDEF) == 0x91E1) || ((bin & 0xFDEF) == 0x91E2) ||
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((bin & 0xFFED) == 0x91E5))
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as_warn (_("undefined combination of operands"));
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}
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if (opcode->insn_size == 2)
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{
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/* warn if previous opcode was cpse/sbic/sbis/sbrc/sbrs
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(AVR core bug) */
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if ((prev & 0xFC00) == 0x1000
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|| (prev & 0xFD00) == 0x9900
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|| (prev & 0xFC08) == 0xFC00)
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as_warn (_("skipping two-word instruction"));
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/* Warn if the previous opcode was cpse/sbic/sbis/sbrc/sbrs
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(AVR core bug, fixed in the newer devices). */
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if (!((avr_mcu->isa & AVR_ISA_MUL) || avr_opt.no_skip_bug))
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{
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if ((prev & 0xFC00) == 0x1000
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|| (prev & 0xFD00) == 0x9900
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|| (prev & 0xFC08) == 0xFC00)
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as_warn (_("skipping two-word instruction"));
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}
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bfd_putl32 ((bfd_vma)bin, frag);
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}
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else
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@ -508,32 +583,32 @@ avr_operand (opcode, where, op, line)
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{
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case 'a':
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if (op_mask < 16 || op_mask > 23)
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as_bad (_ ("register r16-r23 required"));
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as_bad (_("register r16-r23 required"));
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op_mask -= 16;
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break;
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case 'd':
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if (op_mask < 16)
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as_bad (_ ("register number above 15 required"));
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as_bad (_("register number above 15 required"));
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op_mask -= 16;
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break;
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case 'v':
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if (op_mask & 1)
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as_bad (_ ("even register number required"));
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as_bad (_("even register number required"));
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op_mask >>= 1;
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break;
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case 'w':
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op_mask -= 24;
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if (op_mask & 1 || op_mask > 6)
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as_bad (_ ("register r24,r26,r28 or r30 required"));
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as_bad (_("register r24, r26, r28 or r30 required"));
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op_mask >>= 1;
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break;
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}
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break;
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}
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as_bad (_ ("register name or number from 0 to 31 required"));
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as_bad (_("register name or number from 0 to 31 required"));
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}
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break;
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@ -551,32 +626,33 @@ avr_operand (opcode, where, op, line)
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else if (c == 'y')
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op_mask |= 0x8;
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else if (c != 'z')
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as_bad (_ ("pointer register (X,Y or Z) required"));
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as_bad (_("pointer register (X, Y or Z) required"));
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str = skip_space (str+1);
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if (*str == '+')
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{
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++str;
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if (op_mask & 2)
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as_bad (_ ("cannot both predecrement and postincrement"));
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as_bad (_("cannot both predecrement and postincrement"));
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op_mask |= 0x1001;
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}
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/* avr1 can do "ld r,Z" and "st Z,r" but no other pointer
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registers, no predecrement, no postincrement. */
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if ((op_mask & 0x100F) && !(avr_mcu->isa & AVR_ISA_SRAM))
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as_bad (_ ("addressing mode not supported"));
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if (!avr_opt.all_opcodes && (op_mask & 0x100F)
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&& !(avr_mcu->isa & AVR_ISA_SRAM))
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as_bad (_("addressing mode not supported"));
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}
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break;
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case 'z':
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{
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if (*str == '-')
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as_bad (_ ("can't predecrement"));
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as_bad (_("can't predecrement"));
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if (! (*str == 'z' || *str == 'Z'))
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as_bad (_ ("pointer register Z required"));
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as_bad (_("pointer register Z required"));
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str = skip_space (str + 1);
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if (*str == '+')
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@ -593,7 +669,7 @@ avr_operand (opcode, where, op, line)
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if (c == 'y')
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op_mask |= 0x8;
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else if (c != 'z')
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as_bad (_ ("pointer register (Y or Z) required"));
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as_bad (_("pointer register (Y or Z) required"));
|
||||
str = skip_space (str);
|
||||
if (*str++ == '+')
|
||||
{
|
||||
|
|
@ -702,7 +778,7 @@ avr_operand (opcode, where, op, line)
|
|||
case '?':
|
||||
break;
|
||||
default:
|
||||
as_bad (_ ("unknown constraint `%c'"), *op);
|
||||
as_bad (_("unknown constraint `%c'"), *op);
|
||||
}
|
||||
*line = str;
|
||||
return op_mask;
|
||||
|
|
@ -778,7 +854,7 @@ md_apply_fix3 (fixp, valuep, seg)
|
|||
{
|
||||
/* We don't actually support subtracting a symbol. */
|
||||
as_bad_where (fixp->fx_file, fixp->fx_line,
|
||||
_ ("expression too complex"));
|
||||
_("expression too complex"));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -829,7 +905,7 @@ md_apply_fix3 (fixp, valuep, seg)
|
|||
if (value < -2048 || value > 2047)
|
||||
{
|
||||
/* No wrap for devices with >8K of program memory. */
|
||||
if (avr_mcu->isa & AVR_ISA_MEGA)
|
||||
if ((avr_mcu->isa & AVR_ISA_MEGA) || avr_opt.no_wrap)
|
||||
as_bad_where (fixp->fx_file, fixp->fx_line,
|
||||
_("operand out of range: %ld"), value);
|
||||
}
|
||||
|
|
@ -1007,13 +1083,13 @@ md_assemble (str)
|
|||
str = skip_space (extract_word (str, op, sizeof(op)));
|
||||
|
||||
if (!op[0])
|
||||
as_bad (_ ("can't find opcode "));
|
||||
as_bad (_("can't find opcode "));
|
||||
|
||||
opcode = (struct avr_opcodes_s *) hash_find (avr_hash, op);
|
||||
|
||||
if (opcode == NULL)
|
||||
{
|
||||
as_bad (_ ("unknown opcode `%s'"), op);
|
||||
as_bad (_("unknown opcode `%s'"), op);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -1023,8 +1099,8 @@ md_assemble (str)
|
|||
if (*str && *opcode->constraints == '?')
|
||||
++opcode;
|
||||
|
||||
if ((opcode->isa & avr_mcu->isa) != opcode->isa)
|
||||
as_bad (_ ("illegal opcode %s for mcu %s"), opcode->name, avr_mcu->name);
|
||||
if (!avr_opt.all_opcodes && (opcode->isa & avr_mcu->isa) != opcode->isa)
|
||||
as_bad (_("illegal opcode %s for mcu %s"), opcode->name, avr_mcu->name);
|
||||
|
||||
/* We used to set input_line_pointer to the result of get_operands,
|
||||
but that is wrong. Our caller assumes we don't change it. */
|
||||
|
|
@ -1032,7 +1108,7 @@ md_assemble (str)
|
|||
char *t = input_line_pointer;
|
||||
avr_operands (opcode, &str);
|
||||
if (*skip_space (str))
|
||||
as_bad (_ ("garbage at end of line"));
|
||||
as_bad (_("garbage at end of line"));
|
||||
input_line_pointer = t;
|
||||
}
|
||||
}
|
||||
|
|
@ -1090,7 +1166,7 @@ avr_ldi_expression (exp)
|
|||
++closes;
|
||||
}
|
||||
else
|
||||
as_bad (_ ("illegal expression"));
|
||||
as_bad (_("illegal expression"));
|
||||
if (*str == '-')
|
||||
{
|
||||
neg_p = 1;
|
||||
|
|
@ -1112,7 +1188,7 @@ avr_ldi_expression (exp)
|
|||
{
|
||||
if (*input_line_pointer != ')')
|
||||
{
|
||||
as_bad (_ ("`)' required"));
|
||||
as_bad (_("`)' required"));
|
||||
break;
|
||||
}
|
||||
input_line_pointer++;
|
||||
|
|
@ -1124,6 +1200,17 @@ avr_ldi_expression (exp)
|
|||
}
|
||||
input_line_pointer = tmp;
|
||||
expression (exp);
|
||||
|
||||
/* Warn about expressions that fail to use lo8(). */
|
||||
if (exp->X_op == O_constant)
|
||||
{
|
||||
int x = exp->X_add_number;
|
||||
if (x < -255 || x > 255)
|
||||
as_warn (_("constant out of 8-bit range: %d"), x);
|
||||
}
|
||||
else
|
||||
as_warn (_("expression possibly out of 8-bit range"));
|
||||
|
||||
return BFD_RELOC_AVR_LO8_LDI;
|
||||
}
|
||||
|
||||
|
|
@ -1161,7 +1248,7 @@ avr_parse_cons_expression (exp, nbytes)
|
|||
++input_line_pointer;
|
||||
else
|
||||
{
|
||||
as_bad (_ ("`)' required"));
|
||||
as_bad (_("`)' required"));
|
||||
exp_mod_pm = 0;
|
||||
}
|
||||
return;
|
||||
|
|
@ -1186,14 +1273,14 @@ avr_cons_fix_new(frag, where, nbytes, exp)
|
|||
else if (nbytes == 4)
|
||||
fix_new_exp (frag, where, nbytes, exp, false, BFD_RELOC_32);
|
||||
else
|
||||
as_bad (_ ("illegal %srelocation size: %d"), "", nbytes);
|
||||
as_bad (_("illegal %srelocation size: %d"), "", nbytes);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (nbytes == 2)
|
||||
fix_new_exp (frag, where, nbytes, exp, false, BFD_RELOC_AVR_16_PM);
|
||||
else
|
||||
as_bad (_ ("illegal %srelocation size: %d"), "`pm' ", nbytes);
|
||||
as_bad (_("illegal %srelocation size: %d"), "`pm' ", nbytes);
|
||||
exp_mod_pm = 0;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -108,6 +108,8 @@ void avr_cons_fix_new(fragS *frag,int where, int nbytes, expressionS *exp);
|
|||
of a PC relative instruction is the next instruction, so this
|
||||
macro would return the length of an instruction. */
|
||||
|
||||
extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
|
||||
|
||||
#define LISTING_WORD_SIZE 2
|
||||
/* The number of bytes to put into a word in a listing. This affects
|
||||
the way the bytes are clumped together in the listing. For
|
||||
|
|
|
|||
|
|
@ -1,3 +1,9 @@
|
|||
2000-07-03 Marek Michalkiewicz <marekm@linux.org.pl>
|
||||
|
||||
* avr-dis.c (avr_operand): Change _ () to _() around all strings
|
||||
marked for translation (exception from the usual coding style).
|
||||
(print_insn_avr): Initialize insn2 to avoid warnings.
|
||||
|
||||
2000-07-03 Kazu Hirata <kazu@hxi.com>
|
||||
|
||||
* h8300-dis.c (bfd_h8_disassemble): Improve readability.
|
||||
|
|
|
|||
|
|
@ -103,7 +103,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs)
|
|||
case 0: *buf++ = 'Z'; break;
|
||||
case 2: *buf++ = 'Y'; break;
|
||||
case 3: *buf++ = 'X'; break;
|
||||
default: buf += sprintf (buf, _ (" unknown register ")); break;
|
||||
default: buf += sprintf (buf, _(" unknown register ")); break;
|
||||
}
|
||||
if (insn & 0x1)
|
||||
*buf++ = '+';
|
||||
|
|
@ -165,7 +165,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs)
|
|||
break;
|
||||
|
||||
case 'n':
|
||||
sprintf (buf, _ ("Internal disassembler error"));
|
||||
sprintf (buf, _("Internal disassembler error"));
|
||||
break;
|
||||
|
||||
case 'K':
|
||||
|
|
@ -205,7 +205,7 @@ avr_operand (insn, insn2, pc, constraint, buf, comment, regs)
|
|||
break;
|
||||
|
||||
default:
|
||||
sprintf (buf, _ ("unknown constraint `%c'"), constraint);
|
||||
sprintf (buf, _("unknown constraint `%c'"), constraint);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -280,6 +280,7 @@ print_insn_avr(addr, info)
|
|||
op2[0] = 0;
|
||||
comment1[0] = 0;
|
||||
comment2[0] = 0;
|
||||
insn2 = 0;
|
||||
|
||||
if (opcode->insn_size > 1)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in a new issue