-/* tc-h8300.c -- Assemble code for the Hitachi H8/300
- Copyright (C) 1991, 1992 Free Software Foundation.
+/* tc-h8300.c -- Assemble code for the Renesas H8/300
+ Copyright (C) 1991-2016 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+/* Written By Steve Chamberlain <sac@cygnus.com>. */
-/*
- Written By Steve Chamberlain
- sac@cygnus.com
- */
-
-#include <stdio.h>
#include "as.h"
-#include "bfd.h"
+#include "subsegs.h"
+#include "dwarf2dbg.h"
+
#define DEFINE_TABLE
#define h8_opcodes ops
#include "opcode/h8300.h"
-#include <ctype.h>
+#include "safe-ctype.h"
-const char comment_chars[] =
-{';', 0};
-const char line_separator_chars[] =
-{0};
-const char line_comment_chars[] = "#";
+#ifdef OBJ_ELF
+#include "elf/h8.h"
+#endif
-/* This table describes all the machine specific pseudo-ops the assembler
- has to support. The fields are:
- pseudo-op name without dot
- function to call to execute this pseudo-op
- Integer arg to pass to the function
- */
+const char comment_chars[] = ";";
+const char line_comment_chars[] = "#";
+#ifdef TE_LINUX
+const char line_separator_chars[] = "!";
+#else
+const char line_separator_chars[] = "";
+#endif
-void cons ();
+static void sbranch (int);
+static void h8300hmode (int);
+static void h8300smode (int);
+static void h8300hnmode (int);
+static void h8300snmode (int);
+static void h8300sxmode (int);
+static void h8300sxnmode (int);
+static void pint (int);
int Hmode;
-#define PSIZE (Hmode ? L_32 : L_16)
-#define DMODE (L_16)
-#define DSYMMODE (Hmode ? L_24 : L_16)
-int bsize = L_8; /* default branch displacement */
+int Smode;
+int Nmode;
+int SXmode;
+static int default_mach = bfd_mach_h8300;
-void
-h8300hmode ()
+#define PSIZE (Hmode && !Nmode ? L_32 : L_16)
+
+static int bsize = L_8; /* Default branch displacement. */
+
+struct h8_instruction
+{
+ int length;
+ int noperands;
+ int idx;
+ int size;
+ const struct h8_opcode *opcode;
+};
+
+static struct h8_instruction *h8_instructions;
+
+static void
+h8300hmode (int arg ATTRIBUTE_UNUSED)
{
Hmode = 1;
+ Smode = 0;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300h))
+ as_warn (_("could not set architecture and machine"));
}
+static void
+h8300smode (int arg ATTRIBUTE_UNUSED)
+{
+ Smode = 1;
+ Hmode = 1;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300s))
+ as_warn (_("could not set architecture and machine"));
+}
-void
-sbranch (size)
- int size;
+static void
+h8300hnmode (int arg ATTRIBUTE_UNUSED)
+{
+ Hmode = 1;
+ Smode = 0;
+ Nmode = 1;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300hn))
+ as_warn (_("could not set architecture and machine"));
+}
+
+static void
+h8300snmode (int arg ATTRIBUTE_UNUSED)
+{
+ Smode = 1;
+ Hmode = 1;
+ Nmode = 1;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sn))
+ as_warn (_("could not set architecture and machine"));
+}
+
+static void
+h8300sxmode (int arg ATTRIBUTE_UNUSED)
+{
+ Smode = 1;
+ Hmode = 1;
+ SXmode = 1;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sx))
+ as_warn (_("could not set architecture and machine"));
+}
+
+static void
+h8300sxnmode (int arg ATTRIBUTE_UNUSED)
+{
+ Smode = 1;
+ Hmode = 1;
+ SXmode = 1;
+ Nmode = 1;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sxn))
+ as_warn (_("could not set architecture and machine"));
+}
+
+static void
+sbranch (int size)
{
bsize = size;
}
-static void pint ()
+static void
+pint (int arg ATTRIBUTE_UNUSED)
{
cons (Hmode ? 4 : 2);
}
-const pseudo_typeS md_pseudo_table[] =
+/* Like obj_elf_section, but issues a warning for new
+ sections which do not have an attribute specification. */
+
+static void
+h8300_elf_section (int push)
{
+ static const char * known_data_sections [] = { ".rodata", ".tdata", ".tbss" };
+ static const char * known_data_prefixes [] = { ".debug", ".zdebug", ".gnu.warning" };
+ char * saved_ilp = input_line_pointer;
+ const char * name;
+
+ name = obj_elf_section_name ();
+ if (name == NULL)
+ return;
+
+ if (* input_line_pointer != ','
+ && bfd_get_section_by_name (stdoutput, name) == NULL)
+ {
+ signed int i;
- {"h8300h", h8300hmode, 0},
+ /* Ignore this warning for well known data sections. */
+ for (i = ARRAY_SIZE (known_data_sections); i--;)
+ if (strcmp (name, known_data_sections[i]) == 0)
+ break;
+
+ if (i < 0)
+ for (i = ARRAY_SIZE (known_data_prefixes); i--;)
+ if (strncmp (name, known_data_prefixes[i],
+ strlen (known_data_prefixes[i])) == 0)
+ break;
+
+ if (i < 0)
+ as_warn (_("new section '%s' defined without attributes - this might cause problems"), name);
+ }
+
+ /* FIXME: We ought to free the memory allocated by obj_elf_section_name()
+ for 'name', but we do not know if it was taken from the obstack, via
+ demand_copy_C_string(), or xmalloc()ed. */
+ input_line_pointer = saved_ilp;
+ obj_elf_section (push);
+}
+
+/* This table describes all the machine specific pseudo-ops the assembler
+ has to support. The fields are:
+ pseudo-op name without dot
+ function to call to execute this pseudo-op
+ Integer arg to pass to the function. */
+
+const pseudo_typeS md_pseudo_table[] =
+{
+ {"h8300h", h8300hmode, 0},
+ {"h8300hn", h8300hnmode, 0},
+ {"h8300s", h8300smode, 0},
+ {"h8300sn", h8300snmode, 0},
+ {"h8300sx", h8300sxmode, 0},
+ {"h8300sxn", h8300sxnmode, 0},
{"sbranch", sbranch, L_8},
{"lbranch", sbranch, L_16},
{"data.l", cons, 4},
{"form", listing_psize, 0},
{"heading", listing_title, 0},
- {"import", s_ignore, 0},
- {"page", listing_eject, 0},
+ {"import", s_ignore, 0},
+ {"page", listing_eject, 0},
{"program", s_ignore, 0},
+
+#ifdef OBJ_ELF
+ {"section", h8300_elf_section, 0},
+ {"section.s", h8300_elf_section, 0},
+ {"sect", h8300_elf_section, 0},
+ {"sect.s", h8300_elf_section, 0},
+#endif
+
{0, 0, 0}
};
-const int md_reloc_size;
-
const char EXP_CHARS[] = "eE";
-/* Chars that mean this number is a floating point constant */
-/* As in 0f12.456 */
-/* or 0d1.2345e12 */
+/* Chars that mean this number is a floating point constant
+ As in 0f12.456
+ or 0d1.2345e12. */
const char FLT_CHARS[] = "rRsSfFdDxXpP";
+static struct hash_control *opcode_hash_control; /* Opcode mnemonics. */
-const relax_typeS md_relax_table[1];
-
-
-static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
-
-/*
- This function is called once, at assembler startup time. This should
- set up all the tables, etc that the MD part of the assembler needs
- */
-
+/* This function is called once, at assembler startup time. This
+ should set up all the tables, etc. that the MD part of the assembler
+ needs. */
void
-md_begin ()
+md_begin (void)
{
- struct h8_opcode *opcode;
- const struct reg_entry *reg;
+ unsigned int nopcodes;
+ struct h8_opcode *p, *p1;
+ struct h8_instruction *pi;
char prev_buffer[100];
int idx = 0;
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, default_mach))
+ as_warn (_("could not set architecture and machine"));
+
opcode_hash_control = hash_new ();
prev_buffer[0] = 0;
- for (opcode = h8_opcodes; opcode->name; opcode++)
+ nopcodes = sizeof (h8_opcodes) / sizeof (struct h8_opcode);
+
+ h8_instructions = (struct h8_instruction *)
+ xmalloc (nopcodes * sizeof (struct h8_instruction));
+
+ pi = h8_instructions;
+ p1 = h8_opcodes;
+ /* We do a minimum amount of sorting on the opcode table; this is to
+ make it easy to describe the mova instructions without unnecessary
+ code duplication.
+ Sorting only takes place inside blocks of instructions of the form
+ X/Y, so for example mova/b, mova/w and mova/l can be intermixed. */
+ while (p1)
{
+ struct h8_opcode *first_skipped = 0;
+ int len, cmplen = 0;
+ const char *src = p1->name;
+ char *dst, *buffer;
+
+ if (p1->name == 0)
+ break;
/* Strip off any . part when inserting the opcode and only enter
- unique codes into the hash table
- */
- char *src = opcode->name;
- unsigned int len = strlen (src);
- char *dst = malloc (len + 1);
- char *buffer = dst;
-
- opcode->size = 0;
+ unique codes into the hash table. */
+ dst = buffer = malloc (strlen (src) + 1);
while (*src)
{
if (*src == '.')
{
src++;
- opcode->size = *src;
break;
}
+ if (*src == '/')
+ cmplen = src - p1->name + 1;
*dst++ = *src++;
}
- *dst++ = 0;
- if (strcmp (buffer, prev_buffer))
+ *dst = 0;
+ len = dst - buffer;
+ if (cmplen == 0)
+ cmplen = len;
+ hash_insert (opcode_hash_control, buffer, (char *) pi);
+ strcpy (prev_buffer, buffer);
+ idx++;
+
+ for (p = p1; p->name; p++)
{
- hash_insert (opcode_hash_control, buffer, (char *) opcode);
- strcpy (prev_buffer, buffer);
- idx++;
- }
- opcode->idx = idx;
+ /* A negative TIME is used to indicate that we've added this opcode
+ already. */
+ if (p->time == -1)
+ continue;
+ if (strncmp (p->name, buffer, cmplen) != 0
+ || (p->name[cmplen] != '\0' && p->name[cmplen] != '.'
+ && p->name[cmplen - 1] != '/'))
+ {
+ if (first_skipped == 0)
+ first_skipped = p;
+ break;
+ }
+ if (strncmp (p->name, buffer, len) != 0)
+ {
+ if (first_skipped == 0)
+ first_skipped = p;
+ continue;
+ }
+ p->time = -1;
+ pi->size = p->name[len] == '.' ? p->name[len + 1] : 0;
+ pi->idx = idx;
- /* Find the number of operands */
- opcode->noperands = 0;
- while (opcode->args.nib[opcode->noperands] != E)
- opcode->noperands++;
- /* Find the length of the opcode in bytes */
- opcode->length = 0;
- while (opcode->data.nib[opcode->length * 2] != E)
- opcode->length++;
- }
+ /* Find the number of operands. */
+ pi->noperands = 0;
+ while (pi->noperands < 3 && p->args.nib[pi->noperands] != (op_type) E)
+ pi->noperands++;
-}
+ /* Find the length of the opcode in bytes. */
+ pi->length = 0;
+ while (p->data.nib[pi->length * 2] != (op_type) E)
+ pi->length++;
+ pi->opcode = p;
+ pi++;
+ }
+ p1 = first_skipped;
+ }
-struct h8_exp
-{
- char *e_beg;
- char *e_end;
- expressionS e_exp;
-};
-int dispreg;
-int opsize; /* Set when a register size is seen */
+ /* Add entry for the NULL vector terminator. */
+ pi->length = 0;
+ pi->noperands = 0;
+ pi->idx = 0;
+ pi->size = 0;
+ pi->opcode = 0;
+ linkrelax = 1;
+}
struct h8_op
{
expressionS exp;
};
+static void clever_message (const struct h8_instruction *, struct h8_op *);
+static void fix_operand_size (struct h8_op *, int);
+static void build_bytes (const struct h8_instruction *, struct h8_op *);
+static void do_a_fix_imm (int, int, struct h8_op *, int, const struct h8_instruction *);
+static void check_operand (struct h8_op *, unsigned int, const char *);
+static const struct h8_instruction * get_specific (const struct h8_instruction *, struct h8_op *, int) ;
+static char *get_operands (unsigned, char *, struct h8_op *);
+static void get_operand (char **, struct h8_op *, int);
+static int parse_reg (char *, op_type *, unsigned *, int);
+static char *skip_colonthing (char *, int *);
+static char *parse_exp (char *, struct h8_op *);
+
+static int constant_fits_size_p (struct h8_op *, int, int);
+
/*
parse operands
WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
@WREG+
@-WREG
#const
+ ccr
+*/
- */
-
-/* try and parse a reg name, returns number of chars consumed */
-int
-parse_reg (src, mode, reg, direction)
- char *src;
- op_type *mode;
- unsigned int *reg;
- int direction;
+/* Try to parse a reg name. Return the number of chars consumed. */
+static int
+parse_reg (char *src, op_type *mode, unsigned int *reg, int direction)
{
- if (src[0] == 's' && src[1] == 'p')
+ char *end;
+ int len;
+
+ /* Cribbed from get_symbol_name. */
+ if (!is_name_beginner (*src) || *src == '\001')
+ return 0;
+ end = src + 1;
+ while ((is_part_of_name (*end) && *end != '.') || *end == '\001')
+ end++;
+ len = end - src;
+
+ if (len == 2 && TOLOWER (src[0]) == 's' && TOLOWER (src[1]) == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 7;
- return 2;
+ return len;
}
- if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
+ if (len == 3 &&
+ TOLOWER (src[0]) == 'c' &&
+ TOLOWER (src[1]) == 'c' &&
+ TOLOWER (src[2]) == 'r')
{
*mode = CCR;
*reg = 0;
- return 3;
+ return len;
+ }
+ if (len == 3 &&
+ TOLOWER (src[0]) == 'e' &&
+ TOLOWER (src[1]) == 'x' &&
+ TOLOWER (src[2]) == 'r')
+ {
+ *mode = EXR;
+ *reg = 1;
+ return len;
}
- if (src[0] == 'f' && src[1] == 'p')
+ if (len == 3 &&
+ TOLOWER (src[0]) == 'v' &&
+ TOLOWER (src[1]) == 'b' &&
+ TOLOWER (src[2]) == 'r')
+ {
+ *mode = VBR;
+ *reg = 6;
+ return len;
+ }
+ if (len == 3 &&
+ TOLOWER (src[0]) == 's' &&
+ TOLOWER (src[1]) == 'b' &&
+ TOLOWER (src[2]) == 'r')
+ {
+ *mode = SBR;
+ *reg = 7;
+ return len;
+ }
+ if (len == 2 && TOLOWER (src[0]) == 'f' && TOLOWER (src[1]) == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 6;
- return 2;
+ return len;
}
- if (src[0] == 'e'
- && src[1] == 'r'
- && src[2] >= '0' && src[2] <= '7')
+ if (len == 3 && TOLOWER (src[0]) == 'e' && TOLOWER (src[1]) == 'r' &&
+ src[2] >= '0' && src[2] <= '7')
{
*mode = L_32 | REG | direction;
*reg = src[2] - '0';
if (!Hmode)
- as_warn ("Reg only legal for H8/300-H");
-
- return 3;
+ as_warn (_("Reg not valid for H8/300"));
+ return len;
}
- if (src[0] == 'e'
- && src[1] >= '0' && src[1] <= '7')
+ if (len == 2 && TOLOWER (src[0]) == 'e' && src[1] >= '0' && src[1] <= '7')
{
*mode = L_16 | REG | direction;
*reg = src[1] - '0' + 8;
if (!Hmode)
- as_warn ("Reg only legal for H8/300-H");
- return 2;
+ as_warn (_("Reg not valid for H8/300"));
+ return len;
}
- if (src[0] == 'r')
+ if (TOLOWER (src[0]) == 'r')
{
if (src[1] >= '0' && src[1] <= '7')
{
- if (src[2] == 'l')
+ if (len == 3 && TOLOWER (src[2]) == 'l')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0') + 8;
- return 3;
+ return len;
}
- if (src[2] == 'h')
+ if (len == 3 && TOLOWER (src[2]) == 'h')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0');
- return 3;
+ return len;
+ }
+ if (len == 2)
+ {
+ *mode = L_16 | REG | direction;
+ *reg = (src[1] - '0');
+ return len;
}
- *mode = L_16 | REG | direction;
- *reg = (src[1] - '0');
- return 2;
}
}
+
return 0;
}
-char *
-parse_exp (s, op)
- char *s;
- expressionS * op;
+
+/* Parse an immediate or address-related constant and store it in OP.
+ If the user also specifies the operand's size, store that size
+ in OP->MODE, otherwise leave it for later code to decide. */
+
+static char *
+parse_exp (char *src, struct h8_op *op)
{
- char *save = input_line_pointer;
- char *new;
-
- input_line_pointer = s;
- expression (op);
- if (op->X_op == O_absent)
- as_bad ("missing operand");
- new = input_line_pointer;
+ char *save;
+
+ save = input_line_pointer;
+ input_line_pointer = src;
+ expression (&op->exp);
+ if (op->exp.X_op == O_absent)
+ as_bad (_("missing operand"));
+ src = input_line_pointer;
input_line_pointer = save;
- return new;
+
+ return skip_colonthing (src, &op->mode);
}
+
+/* If SRC starts with an explicit operand size, skip it and store the size
+ in *MODE. Leave *MODE unchanged otherwise. */
+
static char *
-skip_colonthing (ptr, exp, mode)
- char *ptr;
- expressionS *exp;
- int *mode;
+skip_colonthing (char *src, int *mode)
{
- if (*ptr == ':')
+ if (*src == ':')
{
- ptr++;
- if (*ptr == '8')
- {
- ptr++;
- /* ff fill any 8 bit quantity */
- /* exp->X_add_number -= 0x100;*/
- }
+ src++;
+ *mode &= ~SIZE;
+ if (src[0] == '8' && !ISDIGIT (src[1]))
+ *mode |= L_8;
+ else if (src[0] == '2' && !ISDIGIT (src[1]))
+ *mode |= L_2;
+ else if (src[0] == '3' && !ISDIGIT (src[1]))
+ *mode |= L_3;
+ else if (src[0] == '4' && !ISDIGIT (src[1]))
+ *mode |= L_4;
+ else if (src[0] == '5' && !ISDIGIT (src[1]))
+ *mode |= L_5;
+ else if (src[0] == '2' && src[1] == '4' && !ISDIGIT (src[2]))
+ *mode |= L_24;
+ else if (src[0] == '3' && src[1] == '2' && !ISDIGIT (src[2]))
+ *mode |= L_32;
+ else if (src[0] == '1' && src[1] == '6' && !ISDIGIT (src[2]))
+ *mode |= L_16;
else
- {
- *mode &= ~SIZE;
- if (*ptr == '2')
- {
- *mode |= L_24;
- }
- else if (*ptr == '1')
- {
- *mode |= L_16;
- }
- while (isdigit (*ptr))
- ptr++;
- }
+ as_bad (_("invalid operand size requested"));
+
+ while (ISDIGIT (*src))
+ src++;
}
- return ptr;
+ return src;
}
/* The many forms of operand:
@(exp[:16], Rn) Register indirect with displacement
@Rn+
@-Rn
- @aa:8 absolute 8 bit
- @aa:16 absolute 16 bit
+ @aa:8 absolute 8 bit
+ @aa:16 absolute 16 bit
@aa absolute 16 bit
#xx[:size] immediate data
- @(exp:[8], pc) pc rel
- @@aa[:8] memory indirect
+ @(exp:[8], pc) pc rel
+ @@aa[:8] memory indirect. */
- */
+static int
+constant_fits_width_p (struct h8_op *operand, offsetT width)
+{
+ offsetT num;
-char *
-colonmod24 (op, src)
- struct h8_op *op;
- char *src;
+ num = ((operand->exp.X_add_number & 0xffffffff) ^ 0x80000000) - 0x80000000;
+ return (num & ~width) == 0 || (num | width) == ~0;
+}
+static int
+constant_fits_size_p (struct h8_op *operand, int size, int no_symbols)
{
- int mode = 0;
- src = skip_colonthing (src, &op->exp, &mode);
+ offsetT num;
- if (!mode)
+ if (no_symbols
+ && (operand->exp.X_add_symbol != 0 || operand->exp.X_op_symbol != 0))
+ return 0;
+ num = operand->exp.X_add_number & 0xffffffff;
+ switch (size)
{
- /* Choose a default mode */
- if (op->exp.X_add_number < -32768
- || op->exp.X_add_number > 32767)
- {
- if (Hmode)
- mode = L_24;
- else
- mode = L_16;
- }
- else if (op->exp.X_add_symbol
- || op->exp.X_op_symbol)
- mode = DSYMMODE;
- else
- mode = DMODE;
+ case L_2:
+ return (num & ~3) == 0;
+ case L_3:
+ return (num & ~7) == 0;
+ case L_3NZ:
+ return num >= 1 && num < 8;
+ case L_4:
+ return (num & ~15) == 0;
+ case L_5:
+ return num >= 1 && num < 32;
+ case L_8:
+ num = (num ^ 0x80000000) - 0x80000000;
+ return (num & ~0xFF) == 0 || (num | 0x7F) == ~0;
+ case L_8U:
+ return (num & ~0xFF) == 0;
+ case L_16:
+ num = (num ^ 0x80000000) - 0x80000000;
+ return (num & ~0xFFFF) == 0 || (num | 0x7FFF) == ~0;
+ case L_16U:
+ return (num & ~0xFFFF) == 0;
+ case L_32:
+ return 1;
+ default:
+ abort ();
}
- op->mode |= mode;
- return src;
-
}
-
static void
-get_operand (ptr, op, dst, direction)
- char **ptr;
- struct h8_op *op;
- unsigned int dst;
-
+get_operand (char **ptr, struct h8_op *op, int direction)
{
char *src = *ptr;
op_type mode;
unsigned int num;
unsigned int len;
- unsigned int size;
- op->mode = E;
+ op->mode = 0;
+
+ /* Check for '(' and ')' for instructions ldm and stm. */
+ if (src[0] == '(' && src[8] == ')')
+ ++ src;
+
+ /* Gross. Gross. ldm and stm have a format not easily handled
+ by get_operand. We deal with it explicitly here. */
+ if (TOLOWER (src[0]) == 'e' && TOLOWER (src[1]) == 'r' &&
+ ISDIGIT (src[2]) && src[3] == '-' &&
+ TOLOWER (src[4]) == 'e' && TOLOWER (src[5]) == 'r' && ISDIGIT (src[6]))
+ {
+ int low, high;
+
+ low = src[2] - '0';
+ high = src[6] - '0';
+
+ /* Check register pair's validity as per tech note TN-H8*-193A/E
+ from Renesas for H8S and H8SX hardware manual. */
+ if ( !(low == 0 && (high == 1 || high == 2 || high == 3))
+ && !(low == 1 && (high == 2 || high == 3 || high == 4) && SXmode)
+ && !(low == 2 && (high == 3 || ((high == 4 || high == 5) && SXmode)))
+ && !(low == 3 && (high == 4 || high == 5 || high == 6) && SXmode)
+ && !(low == 4 && (high == 5 || high == 6))
+ && !(low == 4 && high == 7 && SXmode)
+ && !(low == 5 && (high == 6 || high == 7) && SXmode)
+ && !(low == 6 && high == 7 && SXmode))
+ as_bad (_("Invalid register list for ldm/stm\n"));
+
+ /* Even sicker. We encode two registers into op->reg. One
+ for the low register to save, the other for the high
+ register to save; we also set the high bit in op->reg
+ so we know this is "very special". */
+ op->reg = 0x80000000 | (high << 8) | low;
+ op->mode = REG;
+ if (src[7] == ')')
+ *ptr = src + 8;
+ else
+ *ptr = src + 7;
+ return;
+ }
len = parse_reg (src, &op->mode, &op->reg, direction);
if (len)
{
- *ptr = src + len;
+ src += len;
+ if (*src == '.')
+ {
+ int size = op->mode & SIZE;
+ switch (src[1])
+ {
+ case 'l': case 'L':
+ if (size != L_32)
+ as_warn (_("mismatch between register and suffix"));
+ op->mode = (op->mode & ~MODE) | LOWREG;
+ break;
+ case 'w': case 'W':
+ if (size != L_32 && size != L_16)
+ as_warn (_("mismatch between register and suffix"));
+ op->mode = (op->mode & ~MODE) | LOWREG;
+ op->mode = (op->mode & ~SIZE) | L_16;
+ break;
+ case 'b': case 'B':
+ op->mode = (op->mode & ~MODE) | LOWREG;
+ if (size != L_32 && size != L_8)
+ as_warn (_("mismatch between register and suffix"));
+ op->mode = (op->mode & ~MODE) | LOWREG;
+ op->mode = (op->mode & ~SIZE) | L_8;
+ break;
+ default:
+ as_warn (_("invalid suffix after register."));
+ break;
+ }
+ src += 2;
+ }
+ *ptr = src;
return;
}
src++;
if (*src == '@')
{
- src++;
- src = parse_exp (src, &op->exp);
-
- src = skip_colonthing (src, &op->exp, &op->mode);
-
- *ptr = src;
+ *ptr = parse_exp (src + 1, op);
+ if (op->exp.X_add_number >= 0x100)
+ {
+ int divisor = 1;
+
+ op->mode = VECIND;
+ /* FIXME : 2? or 4? */
+ if (op->exp.X_add_number >= 0x400)
+ as_bad (_("address too high for vector table jmp/jsr"));
+ else if (op->exp.X_add_number >= 0x200)
+ divisor = 4;
+ else
+ divisor = 2;
- op->mode = MEMIND;
+ op->exp.X_add_number = op->exp.X_add_number / divisor - 0x80;
+ }
+ else
+ op->mode = MEMIND;
return;
-
}
-
- if (*src == '-')
+ if (*src == '-' || *src == '+')
{
- src++;
- len = parse_reg (src, &mode, &num, direction);
+ len = parse_reg (src + 1, &mode, &num, direction);
if (len == 0)
{
- /* Oops, not a reg after all, must be ordinary exp */
- src--;
- /* must be a symbol */
- op->mode = ABS | PSIZE | direction;
- *ptr = skip_colonthing (parse_exp (src, &op->exp),
- &op->exp, &op->mode);
-
+ /* Oops, not a reg after all, must be ordinary exp. */
+ op->mode = ABS | direction;
+ *ptr = parse_exp (src, op);
return;
-
-
}
+ if (((mode & SIZE) != PSIZE)
+ /* For Normal mode accept 16 bit and 32 bit pointer registers. */
+ && (!Nmode || ((mode & SIZE) != L_32)))
+ as_bad (_("Wrong size pointer register for architecture."));
- if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
- op->mode = RDDEC;
+ op->mode = src[0] == '-' ? RDPREDEC : RDPREINC;
op->reg = num;
- *ptr = src + len;
+ *ptr = src + 1 + len;
return;
}
if (*src == '(')
{
- /* Disp */
src++;
- /* Start off assuming a 16 bit offset */
-
+ /* See if this is @(ERn.x, PC). */
+ len = parse_reg (src, &mode, &op->reg, direction);
+ if (len != 0 && (mode & MODE) == REG && src[len] == '.')
+ {
+ switch (TOLOWER (src[len + 1]))
+ {
+ case 'b':
+ mode = PCIDXB | direction;
+ break;
+ case 'w':
+ mode = PCIDXW | direction;
+ break;
+ case 'l':
+ mode = PCIDXL | direction;
+ break;
+ default:
+ mode = 0;
+ break;
+ }
+ if (mode
+ && src[len + 2] == ','
+ && TOLOWER (src[len + 3]) != 'p'
+ && TOLOWER (src[len + 4]) != 'c'
+ && src[len + 5] != ')')
+ {
+ *ptr = src + len + 6;
+ op->mode |= mode;
+ return;
+ }
+ /* Fall through into disp case - the grammar is somewhat
+ ambiguous, so we should try whether it's a DISP operand
+ after all ("ER3.L" might be a poorly named label...). */
+ }
- src = parse_exp (src, &op->exp);
+ /* Disp. */
- src = colonmod24 (op, src);
+ /* Start off assuming a 16 bit offset. */
+ src = parse_exp (src, op);
if (*src == ')')
{
- src++;
op->mode |= ABS | direction;
- *ptr = src;
+ *ptr = src + 1;
return;
}
if (*src != ',')
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
-
}
src++;
len = parse_reg (src, &mode, &op->reg, direction);
- if (len == 0 || !(mode & REG))
+ if (len == 0 || (mode & MODE) != REG)
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
}
- op->mode |= DISP | direction;
- dispreg = op->reg;
src += len;
- src = skip_colonthing (src, &op->exp, &op->mode);
+ if (src[0] == '.')
+ {
+ switch (TOLOWER (src[1]))
+ {
+ case 'b':
+ op->mode |= INDEXB | direction;
+ break;
+ case 'w':
+ op->mode |= INDEXW | direction;
+ break;
+ case 'l':
+ op->mode |= INDEXL | direction;
+ break;
+ default:
+ as_bad (_("expected .L, .W or .B for register in indexed addressing mode"));
+ }
+ src += 2;
+ op->reg &= 7;
+ }
+ else
+ op->mode |= DISP | direction;
+ src = skip_colonthing (src, &op->mode);
- if (*src != ')' && '(')
+ if (*src != ')')
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
}
*ptr = src + 1;
-
return;
}
len = parse_reg (src, &mode, &num, direction);
if (len)
{
src += len;
- if (*src == '+')
+ if (*src == '+' || *src == '-')
{
- src++;
- if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
- op->mode = RSINC;
+ if (((mode & SIZE) != PSIZE)
+ /* For Normal mode accept 16 bit and 32 bit pointer registers. */
+ && (!Nmode || ((mode & SIZE) != L_32)))
+ as_bad (_("Wrong size pointer register for architecture."));
+ op->mode = *src == '+' ? RSPOSTINC : RSPOSTDEC;
op->reg = num;
+ src++;
*ptr = src;
return;
}
- if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
+ if (((mode & SIZE) != PSIZE)
+ /* For Normal mode accept 16 bit and 32 bit pointer registers. */
+ && (!Nmode || ((mode & SIZE) != L_32)))
+ as_bad (_("Wrong size pointer register for architecture."));
op->mode = direction | IND | PSIZE;
op->reg = num;
/* must be a symbol */
op->mode = ABS | direction;
- src = parse_exp (src, &op->exp);
-
- *ptr = colonmod24 (op, src);
-
+ *ptr = parse_exp (src, op);
return;
}
}
-
if (*src == '#')
{
- src++;
op->mode = IMM;
- src = parse_exp (src, &op->exp);
- *ptr = skip_colonthing (src, &op->exp, &op->mode);
-
+ *ptr = parse_exp (src + 1, op);
+ return;
+ }
+ else if (strncmp (src, "mach", 4) == 0 ||
+ strncmp (src, "macl", 4) == 0 ||
+ strncmp (src, "MACH", 4) == 0 ||
+ strncmp (src, "MACL", 4) == 0)
+ {
+ op->reg = TOLOWER (src[3]) == 'l';
+ op->mode = MACREG;
+ *ptr = src + 4;
return;
}
else
{
- src = parse_exp (src, &op->exp);
- /* Trailing ':' size ? */
- if (*src == ':')
- {
- if (src[1] == '1' && src[2] == '6')
- {
- op->mode = PCREL | L_16;
- src += 3;
- }
- else if (src[1] == '8')
- {
- op->mode = PCREL | L_8;
- src += 2;
- }
- else
- {
- as_bad ("expect :8 or :16 here");
- }
- }
- else
- {
- op->mode = PCREL | bsize;
- }
- *ptr = src;
+ op->mode = PCREL;
+ *ptr = parse_exp (src, op);
}
}
-
-static
-char *
-get_operands (noperands, op_end, operand)
- unsigned int noperands;
- char *op_end;
- struct h8_op *operand;
+static char *
+get_operands (unsigned int noperands, char *op_end, struct h8_op *operand)
{
char *ptr = op_end;
switch (noperands)
{
case 0:
- operand[0].mode = 0;
- operand[1].mode = 0;
break;
case 1:
ptr++;
- get_operand (&ptr, operand + 0, 0, SRC);
+ get_operand (&ptr, operand + 0, SRC);
if (*ptr == ',')
{
ptr++;
- get_operand (&ptr, operand + 1, 1, DST);
+ get_operand (&ptr, operand + 1, DST);
}
- else
- {
- operand[1].mode = 0;
- }
-
break;
+
case 2:
ptr++;
- get_operand (&ptr, operand + 0, 0, SRC);
+ get_operand (&ptr, operand + 0, SRC);
if (*ptr == ',')
ptr++;
- get_operand (&ptr, operand + 1, 1, DST);
+ get_operand (&ptr, operand + 1, DST);
+ break;
+
+ case 3:
+ ptr++;
+ get_operand (&ptr, operand + 0, SRC);
+ if (*ptr == ',')
+ ptr++;
+ get_operand (&ptr, operand + 1, DST);
+ if (*ptr == ',')
+ ptr++;
+ get_operand (&ptr, operand + 2, OP3);
break;
default:
abort ();
}
-
return ptr;
}
+/* MOVA has special requirements. Rather than adding twice the amount of
+ addressing modes, we simply special case it a bit. */
+static void
+get_mova_operands (char *op_end, struct h8_op *operand)
+{
+ char *ptr = op_end;
+
+ if (ptr[1] != '@' || ptr[2] != '(')
+ goto error;
+ ptr += 3;
+ operand[0].mode = 0;
+ ptr = parse_exp (ptr, &operand[0]);
+
+ if (*ptr !=',')
+ goto error;
+ ptr++;
+ get_operand (&ptr, operand + 1, DST);
+
+ if (*ptr =='.')
+ {
+ ptr++;
+ switch (*ptr++)
+ {
+ case 'b': case 'B':
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXB;
+ break;
+ case 'w': case 'W':
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXW;
+ break;
+ case 'l': case 'L':
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXL;
+ break;
+ default:
+ goto error;
+ }
+ }
+ else if ((operand[1].mode & MODE) == LOWREG)
+ {
+ switch (operand[1].mode & SIZE)
+ {
+ case L_8:
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXB;
+ break;
+ case L_16:
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXW;
+ break;
+ case L_32:
+ operand[0].mode = (operand[0].mode & ~MODE) | INDEXL;
+ break;
+ default:
+ goto error;
+ }
+ }
+ else
+ goto error;
+
+ if (*ptr++ != ')' || *ptr++ != ',')
+ goto error;
+ get_operand (&ptr, operand + 2, OP3);
+ /* See if we can use the short form of MOVA. */
+ if (((operand[1].mode & MODE) == REG || (operand[1].mode & MODE) == LOWREG)
+ && (operand[2].mode & MODE) == REG
+ && (operand[1].reg & 7) == (operand[2].reg & 7))
+ {
+ operand[1].mode = operand[2].mode = 0;
+ operand[0].reg = operand[2].reg & 7;
+ }
+ return;
+
+ error:
+ as_bad (_("expected valid addressing mode for mova: \"@(disp, ea.sz),ERn\""));
+}
+
+static void
+get_rtsl_operands (char *ptr, struct h8_op *operand)
+{
+ int mode, len, type = 0;
+ unsigned int num, num2;
+
+ ptr++;
+ if (*ptr == '(')
+ {
+ ptr++;
+ type = 1;
+ }
+ len = parse_reg (ptr, &mode, &num, SRC);
+ if (len == 0 || (mode & MODE) != REG)
+ {
+ as_bad (_("expected register"));
+ return;
+ }
+ ptr += len;
+ if (*ptr == '-')
+ {
+ len = parse_reg (++ptr, &mode, &num2, SRC);
+ if (len == 0 || (mode & MODE) != REG)
+ {
+ as_bad (_("expected register"));
+ return;
+ }
+ ptr += len;
+ /* CONST_xxx are used as placeholders in the opcode table. */
+ num = num2 - num;
+ if (num > 3)
+ {
+ as_bad (_("invalid register list"));
+ return;
+ }
+ }
+ else
+ num2 = num, num = 0;
+ if (type == 1 && *ptr++ != ')')
+ {
+ as_bad (_("expected closing paren"));
+ return;
+ }
+ operand[0].mode = RS32;
+ operand[1].mode = RD32;
+ operand[0].reg = num;
+ operand[1].reg = num2;
+}
+
/* Passed a pointer to a list of opcodes which use different
addressing modes, return the opcode which matches the opcodes
- provided
- */
-static
-struct h8_opcode *
-get_specific (opcode, operands)
- struct h8_opcode *opcode;
- struct h8_op *operands;
+ provided. */
+
+static const struct h8_instruction *
+get_specific (const struct h8_instruction *instruction,
+ struct h8_op *operands, int size)
{
- struct h8_opcode *this_try = opcode;
+ const struct h8_instruction *this_try = instruction;
+ const struct h8_instruction *found_other = 0, *found_mismatched = 0;
int found = 0;
+ int this_index = instruction->idx;
+ int noperands = 0;
- unsigned int this_index = opcode->idx;
+ /* There's only one ldm/stm and it's easier to just
+ get out quick for them. */
+ if (OP_KIND (instruction->opcode->how) == O_LDM
+ || OP_KIND (instruction->opcode->how) == O_STM)
+ return this_try;
+
+ while (noperands < 3 && operands[noperands].mode != 0)
+ noperands++;
- while (this_index == opcode->idx && !found)
+ while (this_index == instruction->idx && !found)
{
- unsigned int i;
+ int this_size;
+
found = 1;
+ this_try = instruction++;
+ this_size = this_try->opcode->how & SN;
- this_try = opcode++;
- for (i = 0; i < this_try->noperands && found; i++)
+ if (this_try->noperands != noperands)
+ found = 0;
+ else if (this_try->noperands > 0)
{
- op_type op = this_try->args.nib[i];
- int x = operands[i].mode;
+ int i;
- if ((op & (DISP | REG)) == (DISP | REG)
- && ((x & DISP | REG) == (DISP | REG)))
+ for (i = 0; i < this_try->noperands && found; i++)
{
- dispreg = operands[i].reg;
- }
- else if (op & REG)
- {
- if (!(x & REG))
- found = 0;
+ op_type op = this_try->opcode->args.nib[i];
+ int op_mode = op & MODE;
+ int op_size = op & SIZE;
+ int x = operands[i].mode;
+ int x_mode = x & MODE;
+ int x_size = x & SIZE;
+
+ if (op_mode == LOWREG && (x_mode == REG || x_mode == LOWREG))
+ {
+ if ((x_size == L_8 && (operands[i].reg & 8) == 0)
+ || (x_size == L_16 && (operands[i].reg & 8) == 8))
+ as_warn (_("can't use high part of register in operand %d"), i);
- if (x & L_P)
+ if (x_size != op_size)
+ found = 0;
+ }
+ else if (op_mode == REG)
{
- x = (x & ~L_P) | (Hmode ? L_32 : L_16);
+ if (x_mode == LOWREG)
+ x_mode = REG;
+ if (x_mode != REG)
+ found = 0;
+
+ if (x_size == L_P)
+ x_size = (Hmode ? L_32 : L_16);
+ if (op_size == L_P)
+ op_size = (Hmode ? L_32 : L_16);
+
+ /* The size of the reg is v important. */
+ if (op_size != x_size)
+ found = 0;
}
- if (op & L_P)
+ else if (op_mode & CTRL) /* control register */
{
- op = (op & ~L_P) | (Hmode ? L_32 : L_16);
+ if (!(x_mode & CTRL))
+ found = 0;
+
+ switch (x_mode)
+ {
+ case CCR:
+ if (op_mode != CCR &&
+ op_mode != CCR_EXR &&
+ op_mode != CC_EX_VB_SB)
+ found = 0;
+ break;
+ case EXR:
+ if (op_mode != EXR &&
+ op_mode != CCR_EXR &&
+ op_mode != CC_EX_VB_SB)
+ found = 0;
+ break;
+ case MACH:
+ if (op_mode != MACH &&
+ op_mode != MACREG)
+ found = 0;
+ break;
+ case MACL:
+ if (op_mode != MACL &&
+ op_mode != MACREG)
+ found = 0;
+ break;
+ case VBR:
+ if (op_mode != VBR &&
+ op_mode != VBR_SBR &&
+ op_mode != CC_EX_VB_SB)
+ found = 0;
+ break;
+ case SBR:
+ if (op_mode != SBR &&
+ op_mode != VBR_SBR &&
+ op_mode != CC_EX_VB_SB)
+ found = 0;
+ break;
+ }
}
-
- opsize = op & SIZE;
-
- /* The size of the reg is v important */
- if ((op & SIZE) != (x & SIZE))
- found = 0;
- }
- else if ((op & ABSJMP) && (x & ABS))
- {
- operands[i].mode &= ~ABS;
- operands[i].mode |= ABSJMP;
- /* But it may not be 24 bits long */
- if (!Hmode)
+ else if ((op & ABSJMP) && (x_mode == ABS || x_mode == PCREL))
{
- operands[i].mode &= ~SIZE;
- operands[i].mode |= L_16;
+ operands[i].mode &= ~MODE;
+ operands[i].mode |= ABSJMP;
+ /* But it may not be 24 bits long. */
+ if (x_mode == ABS && !Hmode)
+ {
+ operands[i].mode &= ~SIZE;
+ operands[i].mode |= L_16;
+ }
+ if ((operands[i].mode & SIZE) == L_32
+ && (op_mode & SIZE) != L_32)
+ found = 0;
}
-
-
- }
- else if ((op & (KBIT | DBIT)) && (x & IMM))
- {
- /* This is ok if the immediate value is sensible */
-
- }
- else if (op & PCREL)
- {
-
- /* The size of the displacement is important */
- if ((op & SIZE) != (x & SIZE))
- found = 0;
-
- }
- else if ((op & (DISP | IMM | ABS))
- && (op & (DISP | IMM | ABS)) == (x & (DISP | IMM | ABS)))
- {
- /* Got a diplacement,will fit if no size or same size as try */
- if (op & ABS && op & L_8)
+ else if (x_mode == IMM && op_mode != IMM)
{
- /* We want an 8 bit abs here, but one which looks like 16 bits will do fine */
- if (x & L_16)
- found= 1;
+ offsetT num = operands[i].exp.X_add_number & 0xffffffff;
+ if (op_mode == KBIT || op_mode == DBIT)
+ /* This is ok if the immediate value is sensible. */;
+ else if (op_mode == CONST_2)
+ found = num == 2;
+ else if (op_mode == CONST_4)
+ found = num == 4;
+ else if (op_mode == CONST_8)
+ found = num == 8;
+ else if (op_mode == CONST_16)
+ found = num == 16;
+ else
+ found = 0;
+ }
+ else if (op_mode == PCREL && op_mode == x_mode)
+ {
+ /* movsd, bsr/bc and bsr/bs only come in PCREL16 flavour:
+ If x_size is L_8, promote it. */
+ if (OP_KIND (this_try->opcode->how) == O_MOVSD
+ || OP_KIND (this_try->opcode->how) == O_BSRBC
+ || OP_KIND (this_try->opcode->how) == O_BSRBS)
+ if (x_size == L_8)
+ x_size = L_16;
+
+ /* The size of the displacement is important. */
+ if (op_size != x_size)
+ found = 0;
+ }
+ else if ((op_mode == DISP || op_mode == IMM || op_mode == ABS
+ || op_mode == INDEXB || op_mode == INDEXW
+ || op_mode == INDEXL)
+ && op_mode == x_mode)
+ {
+ /* Promote a L_24 to L_32 if it makes us match. */
+ if (x_size == L_24 && op_size == L_32)
+ {
+ x &= ~SIZE;
+ x |= x_size = L_32;
+ }
+
+ if (((x_size == L_16 && op_size == L_16U)
+ || (x_size == L_8 && op_size == L_8U)
+ || (x_size == L_3 && op_size == L_3NZ))
+ /* We're deliberately more permissive for ABS modes. */
+ && (op_mode == ABS
+ || constant_fits_size_p (operands + i, op_size,
+ op & NO_SYMBOLS)))
+ x_size = op_size;
+
+ if (x_size != 0 && op_size != x_size)
+ found = 0;
+ else if (x_size == 0
+ && ! constant_fits_size_p (operands + i, op_size,
+ op & NO_SYMBOLS))
+ found = 0;
+ }
+ else if (op_mode != x_mode)
+ {
+ found = 0;
}
- else
- if ((x & SIZE) != 0
- && ((op & SIZE) != (x & SIZE)))
- found = 0;
- }
-#if 0
- else if ((op & ABSMOV) && (x & ABS))
- {
- /* An absmov is only
- /* Ok */
- }
-#endif
- else if ((op & MODE) != (x & MODE))
- {
- found = 0;
}
+ }
+ if (found)
+ {
+ if ((this_try->opcode->available == AV_H8SX && ! SXmode)
+ || (this_try->opcode->available == AV_H8S && ! Smode)
+ || (this_try->opcode->available == AV_H8H && ! Hmode))
+ found = 0, found_other = this_try;
+ else if (this_size != size && (this_size != SN && size != SN))
+ found_mismatched = this_try, found = 0;
}
}
- if (found)
- return this_try;
- else
- return 0;
+ if (found)
+ return this_try;
+ if (found_other)
+ {
+ as_warn (_("Opcode `%s' with these operand types not available in %s mode"),
+ found_other->opcode->name,
+ (! Hmode && ! Smode ? "H8/300"
+ : SXmode ? "H8sx"
+ : Smode ? "H8/300S"
+ : "H8/300H"));
+ }
+ else if (found_mismatched)
+ {
+ as_warn (_("mismatch between opcode size and operand size"));
+ return found_mismatched;
+ }
+ return 0;
}
static void
-check_operand (operand, width, string)
- struct h8_op *operand;
- unsigned int width;
- char *string;
+check_operand (struct h8_op *operand, unsigned int width, const char *string)
{
if (operand->exp.X_add_symbol == 0
&& operand->exp.X_op_symbol == 0)
{
+ /* No symbol involved, let's look at offset, it's dangerous if
+ any of the high bits are not 0 or ff's, find out by oring or
+ anding with the width and seeing if the answer is 0 or all
+ fs. */
- /* No symbol involved, let's look at offset, it's dangerous if any of
- the high bits are not 0 or ff's, find out by oring or anding with
- the width and seeing if the answer is 0 or all fs*/
-
- if ((operand->exp.X_add_number & ~width) != 0 &&
- (operand->exp.X_add_number | width) != (~0))
+ if (! constant_fits_width_p (operand, width))
{
- if (width == 255
+ if (width == 255
&& (operand->exp.X_add_number & 0xff00) == 0xff00)
{
- /* Just ignore this one - which happens when trying to
- fit a 16 bit address truncated into an 8 bit address of something like bset */
+ /* Just ignore this one - which happens when trying to
+ fit a 16 bit address truncated into an 8 bit address
+ of something like bset. */
}
- else
+ else if (strcmp (string, "@") == 0
+ && width == 0xffff
+ && (operand->exp.X_add_number & 0xff8000) == 0xff8000)
{
- as_warn ("operand %s0x%x out of range.", string, operand->exp.X_add_number);
- }
+ /* Just ignore this one - which happens when trying to
+ fit a 24 bit address truncated into a 16 bit address
+ of something like mov.w. */
+ }
+ else
+ {
+ as_warn (_("operand %s0x%lx out of range."), string,
+ (unsigned long) operand->exp.X_add_number);
+ }
}
}
-
}
+/* RELAXMODE has one of 3 values:
+
+ 0 Output a "normal" reloc, no relaxing possible for this insn/reloc
+
+ 1 Output a relaxable 24bit absolute mov.w address relocation
+ (may relax into a 16bit absolute address).
+
+ 2 Output a relaxable 16/24 absolute mov.b address relocation
+ (may relax into an 8bit absolute address). */
+
static void
-do_a_fix_imm (offset, operand, relaxing)
- int offset;
- struct h8_op *operand;
- int relaxing;
+do_a_fix_imm (int offset, int nibble, struct h8_op *operand, int relaxmode, const struct h8_instruction *this_try)
{
int idx;
int size;
int where;
+ char *bytes = frag_now->fr_literal + offset;
-
- char *t = operand->mode & IMM ? "#" : "@";
+ const char *t = ((operand->mode & MODE) == IMM) ? "#" : "@";
if (operand->exp.X_add_symbol == 0)
{
- char *bytes = frag_now->fr_literal + offset;
switch (operand->mode & SIZE)
{
case L_2:
check_operand (operand, 0x3, t);
- bytes[0] |= (operand->exp.X_add_number) << 4;
+ bytes[0] |= (operand->exp.X_add_number & 3) << (nibble ? 0 : 4);
break;
case L_3:
+ case L_3NZ:
check_operand (operand, 0x7, t);
- bytes[0] |= (operand->exp.X_add_number) << 4;
+ bytes[0] |= (operand->exp.X_add_number & 7) << (nibble ? 0 : 4);
+ break;
+ case L_4:
+ check_operand (operand, 0xF, t);
+ bytes[0] |= (operand->exp.X_add_number & 15) << (nibble ? 0 : 4);
+ break;
+ case L_5:
+ check_operand (operand, 0x1F, t);
+ bytes[0] |= operand->exp.X_add_number & 31;
break;
case L_8:
+ case L_8U:
check_operand (operand, 0xff, t);
- bytes[0] = operand->exp.X_add_number;
+ bytes[0] |= operand->exp.X_add_number;
break;
case L_16:
+ case L_16U:
check_operand (operand, 0xffff, t);
- bytes[0] = operand->exp.X_add_number >> 8;
- bytes[1] = operand->exp.X_add_number >> 0;
+ bytes[0] |= operand->exp.X_add_number >> 8;
+ bytes[1] |= operand->exp.X_add_number >> 0;
+#ifdef OBJ_ELF
+ /* MOVA needs both relocs to relax the second operand properly. */
+ if (relaxmode != 0
+ && (OP_KIND(this_try->opcode->how) == O_MOVAB
+ || OP_KIND(this_try->opcode->how) == O_MOVAW
+ || OP_KIND(this_try->opcode->how) == O_MOVAL))
+ {
+ idx = BFD_RELOC_16;
+ fix_new_exp (frag_now, offset, 2, &operand->exp, 0, idx);
+ }
+#endif
break;
case L_24:
check_operand (operand, 0xffffff, t);
- bytes[0] = operand->exp.X_add_number >> 16;
- bytes[1] = operand->exp.X_add_number >> 8;
- bytes[2] = operand->exp.X_add_number >> 0;
+ bytes[0] |= operand->exp.X_add_number >> 16;
+ bytes[1] |= operand->exp.X_add_number >> 8;
+ bytes[2] |= operand->exp.X_add_number >> 0;
break;
case L_32:
- /* This should be done with bfd */
- bytes[0] = operand->exp.X_add_number >> 24;
- bytes[1] = operand->exp.X_add_number >> 16;
- bytes[2] = operand->exp.X_add_number >> 8;
- bytes[3] = operand->exp.X_add_number >> 0;
+ /* This should be done with bfd. */
+ bytes[0] |= operand->exp.X_add_number >> 24;
+ bytes[1] |= operand->exp.X_add_number >> 16;
+ bytes[2] |= operand->exp.X_add_number >> 8;
+ bytes[3] |= operand->exp.X_add_number >> 0;
+ if (relaxmode != 0)
+ {
+#ifdef OBJ_ELF
+ if ((operand->mode & MODE) == DISP && relaxmode == 1)
+ idx = BFD_RELOC_H8_DISP32A16;
+ else
+#endif
+ idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
+ fix_new_exp (frag_now, offset, 4, &operand->exp, 0, idx);
+ }
break;
}
-
}
else
{
switch (operand->mode & SIZE)
{
-
case L_24:
- size = 4;
- where = -1;
- idx = relaxing ? R_MOVLB1 : R_RELLONG;
- break;
- default:
- as_bad("Can't work out size of operand.\n");
case L_32:
size = 4;
- where = 0;
- idx = R_RELLONG;
+ where = (operand->mode & SIZE) == L_24 ? -1 : 0;
+#ifdef OBJ_ELF
+ if ((operand->mode & MODE) == DISP && relaxmode == 1)
+ idx = BFD_RELOC_H8_DISP32A16;
+ else
+#endif
+ if (relaxmode == 2)
+ idx = R_MOV24B1;
+ else if (relaxmode == 1)
+ idx = R_MOVL1;
+ else
+ idx = R_RELLONG;
break;
+ default:
+ as_bad (_("Can't work out size of operand.\n"));
case L_16:
+ case L_16U:
size = 2;
where = 0;
- idx = relaxing ? R_MOVB1 : R_RELWORD;
+ if (relaxmode == 2)
+ idx = R_MOV16B1;
+ else
+ idx = R_RELWORD;
+ operand->exp.X_add_number =
+ ((operand->exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
+ operand->exp.X_add_number |= (bytes[0] << 8) | bytes[1];
break;
case L_8:
size = 1;
where = 0;
idx = R_RELBYTE;
+ operand->exp.X_add_number =
+ ((operand->exp.X_add_number & 0xff) ^ 0x80) - 0x80;
+ operand->exp.X_add_number |= bytes[0];
}
- /* Sign extend any expression */
- operand->exp.X_add_number = (short)operand->exp.X_add_number;
fix_new_exp (frag_now,
offset + where,
size,
0,
idx);
}
-
}
-/* Now we know what sort of opcodes it is, lets build the bytes -
- */
+/* Now we know what sort of opcodes it is, let's build the bytes. */
+
static void
-build_bytes (this_try, operand)
- struct h8_opcode *this_try;
- struct h8_op *operand;
+build_bytes (const struct h8_instruction *this_try, struct h8_op *operand)
{
- unsigned int i;
-
+ int i;
char *output = frag_more (this_try->length);
- char *output_ptr = output;
- op_type *nibble_ptr = this_try->data.nib;
- char part;
+ const op_type *nibble_ptr = this_try->opcode->data.nib;
op_type c;
- char high;
unsigned int nibble_count = 0;
- int absat;
- int immat;
- int nib;
- char asnibbles[30];
+ int op_at[3];
+ int nib = 0;
+ int movb = 0;
+ char asnibbles[100];
char *p = asnibbles;
-
- if (!(this_try->inbase || Hmode))
- {
- as_warn ("Opcode `%s' only available on H8/300-H", this_try->name);
- }
-
- while (*nibble_ptr != E)
+ int high, low;
+
+ if (!Hmode && this_try->opcode->available != AV_H8)
+ as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"),
+ this_try->opcode->name);
+ else if (!Smode
+ && this_try->opcode->available != AV_H8
+ && this_try->opcode->available != AV_H8H)
+ as_warn (_("Opcode `%s' with these operand types not available in H8/300H mode"),
+ this_try->opcode->name);
+ else if (!SXmode
+ && this_try->opcode->available != AV_H8
+ && this_try->opcode->available != AV_H8H
+ && this_try->opcode->available != AV_H8S)
+ as_warn (_("Opcode `%s' with these operand types not available in H8/300S mode"),
+ this_try->opcode->name);
+
+ while (*nibble_ptr != (op_type) E)
{
int d;
+
+ nib = 0;
c = *nibble_ptr++;
- d = (c & DST) != 0;
+ d = (c & OP3) == OP3 ? 2 : (c & DST) == DST ? 1 : 0;
if (c < 16)
- {
- nib = c;
- }
+ nib = c;
else
{
+ int c2 = c & MODE;
- if (c & (REG | IND | INC | DEC))
+ if (c2 == REG || c2 == LOWREG
+ || c2 == IND || c2 == PREINC || c2 == PREDEC
+ || c2 == POSTINC || c2 == POSTDEC)
{
nib = operand[d].reg;
- }
- else if ((c & DISPREG) == (DISPREG))
- {
- nib = dispreg;
+ if (c2 == LOWREG)
+ nib &= 7;
}
- else if (c & ABSMOV)
+ else if (c & CTRL) /* Control reg operand. */
+ nib = operand[d].reg;
+
+ else if ((c & DISPREG) == (DISPREG))
{
- operand[d].mode &= ~ABS;
- operand[d].mode |= ABSMOV;
- immat = nibble_count / 2;
- nib = 0;
+ nib = operand[d].reg;
}
- else if (c & ABS )
+ else if (c2 == ABS)
{
operand[d].mode = c;
- absat = nibble_count / 2;
+ op_at[d] = nibble_count;
nib = 0;
}
- else if (c & (IMM | PCREL | ABS | ABSJMP | DISP))
+ else if (c2 == IMM || c2 == PCREL || c2 == ABS
+ || (c & ABSJMP) || c2 == DISP)
{
operand[d].mode = c;
- immat = nibble_count / 2;
- nib = 0;
- }
- else if (c & IGNORE)
- {
+ op_at[d] = nibble_count;
nib = 0;
}
- else if (c & DBIT)
+ else if ((c & IGNORE) || (c & DATA))
+ nib = 0;
+
+ else if (c2 == DBIT)
{
switch (operand[0].exp.X_add_number)
{
nib = 0x8 | c;
break;
default:
- as_bad ("Need #1 or #2 here");
+ as_bad (_("Need #1 or #2 here"));
}
}
- else if (c & KBIT)
+ else if (c2 == KBIT)
{
switch (operand[0].exp.X_add_number)
{
break;
case 4:
if (!Hmode)
- as_warn ("#4 only valid in h8/300 mode.");
+ as_warn (_("#4 not valid on H8/300."));
nib = 9;
break;
default:
- as_bad ("Need #1 or #2 here");
+ as_bad (_("Need #1 or #2 here"));
break;
}
- /* stop it making a fix */
+ /* Stop it making a fix. */
operand[0].mode = 0;
}
+ if (c & MEMRELAX)
+ operand[d].mode |= MEMRELAX;
+
if (c & B31)
+ nib |= 0x8;
+
+ if (c & B21)
+ nib |= 0x4;
+
+ if (c & B11)
+ nib |= 0x2;
+
+ if (c & B01)
+ nib |= 0x1;
+
+ if (c2 == MACREG)
{
- nib |= 0x8;
+ if (operand[0].mode == MACREG)
+ /* stmac has mac[hl] as the first operand. */
+ nib = 2 + operand[0].reg;
+ else
+ /* ldmac has mac[hl] as the second operand. */
+ nib = 2 + operand[1].reg;
}
}
nibble_count++;
*p++ = nib;
}
- for (i = 0; i < this_try->length; i++)
+ /* Disgusting. Why, oh why didn't someone ask us for advice
+ on the assembler format. */
+ if (OP_KIND (this_try->opcode->how) == O_LDM)
+ {
+ high = (operand[1].reg >> 8) & 0xf;
+ low = (operand[1].reg) & 0xf;
+ asnibbles[2] = high - low;
+ asnibbles[7] = high;
+ }
+ else if (OP_KIND (this_try->opcode->how) == O_STM)
{
- output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
+ high = (operand[0].reg >> 8) & 0xf;
+ low = (operand[0].reg) & 0xf;
+ asnibbles[2] = high - low;
+ asnibbles[7] = low;
}
- /* output any fixes */
- for (i = 0; i < 2; i++)
+ for (i = 0; i < this_try->length; i++)
+ output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
+
+ /* Note if this is a mov.b or a bit manipulation instruction
+ there is a special relaxation which only applies. */
+ if ( this_try->opcode->how == O (O_MOV, SB)
+ || this_try->opcode->how == O (O_BCLR, SB)
+ || this_try->opcode->how == O (O_BAND, SB)
+ || this_try->opcode->how == O (O_BIAND, SB)
+ || this_try->opcode->how == O (O_BILD, SB)
+ || this_try->opcode->how == O (O_BIOR, SB)
+ || this_try->opcode->how == O (O_BIST, SB)
+ || this_try->opcode->how == O (O_BIXOR, SB)
+ || this_try->opcode->how == O (O_BLD, SB)
+ || this_try->opcode->how == O (O_BNOT, SB)
+ || this_try->opcode->how == O (O_BOR, SB)
+ || this_try->opcode->how == O (O_BSET, SB)
+ || this_try->opcode->how == O (O_BST, SB)
+ || this_try->opcode->how == O (O_BTST, SB)
+ || this_try->opcode->how == O (O_BXOR, SB))
+ movb = 1;
+
+ /* Output any fixes. */
+ for (i = 0; i < this_try->noperands; i++)
{
int x = operand[i].mode;
+ int x_mode = x & MODE;
- if (x & (IMM | DISP))
+ if (x_mode == IMM || x_mode == DISP)
{
- do_a_fix_imm (output - frag_now->fr_literal + immat, operand + i, 0);
- }
- else if (x & ABS)
- {
- do_a_fix_imm (output - frag_now->fr_literal + absat, operand + i, 0);
+#ifndef OBJ_ELF
+ /* Remove MEMRELAX flag added in h8300.h on mov with
+ addressing mode "register indirect with displacement". */
+ if (x_mode == DISP)
+ x &= ~MEMRELAX;
+#endif
+ do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
+ op_at[i] & 1, operand + i, (x & MEMRELAX) != 0,
+ this_try);
}
- else if (x & PCREL)
+ else if (x_mode == ABS)
+ do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
+ op_at[i] & 1, operand + i,
+ (x & MEMRELAX) ? movb + 1 : 0,
+ this_try);
+
+ else if (x_mode == PCREL)
{
- int size16 = x & L_16;
- int where = size16 ? 2 : 1;
+ int size16 = (x & SIZE) == L_16;
int size = size16 ? 2 : 1;
int type = size16 ? R_PCRWORD : R_PCRBYTE;
+ fixS *fixP;
check_operand (operand + i, size16 ? 0x7fff : 0x7f, "@");
if (operand[i].exp.X_add_number & 1)
+ as_warn (_("branch operand has odd offset (%lx)\n"),
+ (unsigned long) operand->exp.X_add_number);
+#ifndef OBJ_ELF
+ /* The COFF port has always been off by one, changing it
+ now would be an incompatible change, so we leave it as-is.
+
+ We don't want to do this for ELF as we want to be
+ compatible with the proposed ELF format from Hitachi. */
+ operand[i].exp.X_add_number -= 1;
+#endif
+ if (size16)
+ {
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
+ }
+ else
{
- as_warn ("branch operand has odd offset (%x)\n",
- operand->exp.X_add_number);
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80;
}
- operand[i].exp.X_add_number =
- (char) (operand[i].exp.X_add_number - 1);
- fix_new_exp (frag_now,
- output - frag_now->fr_literal + where,
- size,
- &operand[i].exp,
- 1,
- type);
+ /* For BRA/S. */
+ if (! size16)
+ operand[i].exp.X_add_number |= output[op_at[i] / 2];
+
+ fixP = fix_new_exp (frag_now,
+ output - frag_now->fr_literal + op_at[i] / 2,
+ size,
+ &operand[i].exp,
+ 1,
+ type);
+ fixP->fx_signed = 1;
}
- else if (x & MEMIND)
+ else if (x_mode == MEMIND)
{
-
check_operand (operand + i, 0xff, "@@");
fix_new_exp (frag_now,
output - frag_now->fr_literal + 1,
1,
&operand[i].exp,
0,
- R_RELBYTE);
+ R_MEM_INDIRECT);
}
-
- else if (x & ABSMOV)
+ else if (x_mode == VECIND)
{
- /* This mov is either absolute long or thru a memory loc */
- do_a_fix_imm (output - frag_now->fr_literal + immat, operand + i, 1);
+ check_operand (operand + i, 0x7f, "@@");
+ /* FIXME: approximating the effect of "B31" here...
+ This is very hackish, and ought to be done a better way. */
+ operand[i].exp.X_add_number |= 0x80;
+ fix_new_exp (frag_now,
+ output - frag_now->fr_literal + 1,
+ 1,
+ &operand[i].exp,
+ 0,
+ R_MEM_INDIRECT);
}
-
else if (x & ABSJMP)
{
- /* This jmp may be a jump or a branch */
+ int where = 0;
+ bfd_reloc_code_real_type reloc_type = R_JMPL1;
- check_operand (operand + i, Hmode ? 0xffffff : 0xffff, "@");
- if (operand[i].exp.X_add_number & 1)
+#ifdef OBJ_ELF
+ /* To be compatible with the proposed H8 ELF format, we
+ want the relocation's offset to point to the first byte
+ that will be modified, not to the start of the instruction. */
+
+ if ((operand->mode & SIZE) == L_32)
{
- as_warn ("branch operand has odd offset (%x)\n",
- operand->exp.X_add_number);
+ where = 2;
+ reloc_type = R_RELLONG;
}
+ else
+ where = 1;
+#endif
+
+ /* This jmp may be a jump or a branch. */
+
+ check_operand (operand + i,
+ SXmode ? 0xffffffff : Hmode ? 0xffffff : 0xffff,
+ "@");
+
+ if (operand[i].exp.X_add_number & 1)
+ as_warn (_("branch operand has odd offset (%lx)\n"),
+ (unsigned long) operand->exp.X_add_number);
+
if (!Hmode)
- operand[i].exp.X_add_number = (short) operand[i].exp.X_add_number;
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
fix_new_exp (frag_now,
- output - frag_now->fr_literal,
+ output - frag_now->fr_literal + where,
4,
&operand[i].exp,
0,
- R_JMPL1);
+ reloc_type);
}
}
-
}
-/*
- try and give an intelligent error message for common and simple to
- detect errors
- */
+/* Try to give an intelligent error message for common and simple to
+ detect errors. */
static void
-clever_message (opcode, operand)
- struct h8_opcode *opcode;
- struct h8_op *operand;
+clever_message (const struct h8_instruction *instruction,
+ struct h8_op *operand)
{
- struct h8_opcode *scan = opcode;
+ /* Find out if there was more than one possible opcode. */
- /* Find out if there was more than one possible opccode */
-
- if ((opcode + 1)->idx != opcode->idx)
+ if ((instruction + 1)->idx != instruction->idx)
{
- unsigned int argn;
+ int argn;
- /* Only one opcode of this flavour, try and guess which operand
- didn't match */
- for (argn = 0; argn < opcode->noperands; argn++)
+ /* Only one opcode of this flavour, try to guess which operand
+ didn't match. */
+ for (argn = 0; argn < instruction->noperands; argn++)
{
- switch (opcode->args.nib[argn])
+ switch (instruction->opcode->args.nib[argn])
{
case RD16:
if (operand[argn].mode != RD16)
{
- as_bad ("destination operand must be 16 bit register");
+ as_bad (_("destination operand must be 16 bit register"));
return;
}
break;
case RS8:
-
if (operand[argn].mode != RS8)
{
- as_bad ("source operand must be 8 bit register");
+ as_bad (_("source operand must be 8 bit register"));
return;
}
break;
case ABS16DST:
if (operand[argn].mode != ABS16DST)
{
- as_bad ("destination operand must be 16bit absolute address");
+ as_bad (_("destination operand must be 16bit absolute address"));
return;
}
break;
case RD8:
if (operand[argn].mode != RD8)
{
- as_bad ("destination operand must be 8 bit register");
+ as_bad (_("destination operand must be 8 bit register"));
return;
}
break;
-
case ABS16SRC:
if (operand[argn].mode != ABS16SRC)
{
- as_bad ("source operand must be 16bit absolute address");
+ as_bad (_("source operand must be 16bit absolute address"));
return;
}
break;
}
}
}
- as_bad ("invalid operands");
+ as_bad (_("invalid operands"));
}
-/* This is the guts of the machine-dependent assembler. STR points to a
- machine dependent instruction. This funciton is supposed to emit
- the frags/bytes it assembles to.
- */
+
+/* If OPERAND is part of an address, adjust its size and value given
+ that it addresses SIZE bytes.
+
+ This function decides how big non-immediate constants are when no
+ size was explicitly given. It also scales down the assembly-level
+ displacement in an @(d:2,ERn) operand. */
+
+static void
+fix_operand_size (struct h8_op *operand, int size)
+{
+ if (SXmode && (operand->mode & MODE) == DISP)
+ {
+ /* If the user didn't specify an operand width, see if we
+ can use @(d:2,ERn). */
+ if ((operand->mode & SIZE) == 0
+ && operand->exp.X_add_symbol == 0
+ && operand->exp.X_op_symbol == 0
+ && (operand->exp.X_add_number == size
+ || operand->exp.X_add_number == size * 2
+ || operand->exp.X_add_number == size * 3))
+ operand->mode |= L_2;
+
+ /* Scale down the displacement in an @(d:2,ERn) operand.
+ X_add_number then contains the desired field value. */
+ if ((operand->mode & SIZE) == L_2)
+ {
+ if (operand->exp.X_add_number % size != 0)
+ as_warn (_("operand/size mis-match"));
+ operand->exp.X_add_number /= size;
+ }
+ }
+
+ if ((operand->mode & SIZE) == 0)
+ switch (operand->mode & MODE)
+ {
+ case DISP:
+ case INDEXB:
+ case INDEXW:
+ case INDEXL:
+ case ABS:
+ /* Pick a 24-bit address unless we know that a 16-bit address
+ is safe. get_specific() will relax L_24 into L_32 where
+ necessary. */
+ if (Hmode
+ && !Nmode
+ && ((((addressT) operand->exp.X_add_number + 0x8000)
+ & 0xffffffff) > 0xffff
+ || operand->exp.X_add_symbol != 0
+ || operand->exp.X_op_symbol != 0))
+ operand->mode |= L_24;
+ else
+ operand->mode |= L_16;
+ break;
+
+ case PCREL:
+ if ((((addressT) operand->exp.X_add_number + 0x80)
+ & 0xffffffff) <= 0xff)
+ {
+ if (operand->exp.X_add_symbol != NULL)
+ operand->mode |= bsize;
+ else
+ operand->mode |= L_8;
+ }
+ else
+ operand->mode |= L_16;
+ break;
+ }
+}
+/* This is the guts of the machine-dependent assembler. STR points to
+ a machine dependent instruction. This function is supposed to emit
+ the frags/bytes it assembles. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
char *op_start;
char *op_end;
- unsigned int i;
- struct h8_op operand[2];
- struct h8_opcode *opcode;
- struct h8_opcode *prev_opcode;
+ struct h8_op operand[3];
+ const struct h8_instruction *instruction;
+ const struct h8_instruction *prev_instruction;
char *dot = 0;
+ char *slash = 0;
char c;
+ int size, i;
- /* Drop leading whitespace */
+ /* Drop leading whitespace. */
while (*str == ' ')
str++;
- /* find the op code end */
+ /* Find the op code end. */
for (op_start = op_end = str;
*op_end != 0 && *op_end != ' ';
op_end++)
op_end += 2;
break;
}
+ else if (*op_end == '/' && ! slash)
+ slash = op_end;
}
- ;
-
if (op_end == op_start)
{
- as_bad ("can't find opcode ");
+ as_bad (_("can't find opcode "));
}
c = *op_end;
*op_end = 0;
- opcode = (struct h8_opcode *) hash_find (opcode_hash_control,
- op_start);
+ /* The assembler stops scanning the opcode at slashes, so it fails
+ to make characters following them lower case. Fix them. */
+ if (slash)
+ while (*++slash)
+ *slash = TOLOWER (*slash);
- if (opcode == NULL)
+ instruction = (const struct h8_instruction *)
+ hash_find (opcode_hash_control, op_start);
+
+ if (instruction == NULL)
{
- as_bad ("unknown opcode");
+ as_bad (_("unknown opcode"));
return;
}
- /* We use to set input_line_pointer to the result of get_operands,
+ /* 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. */
- (void) get_operands (opcode->noperands, op_end, operand);
+ operand[0].mode = 0;
+ operand[1].mode = 0;
+ operand[2].mode = 0;
+
+ if (OP_KIND (instruction->opcode->how) == O_MOVAB
+ || OP_KIND (instruction->opcode->how) == O_MOVAW
+ || OP_KIND (instruction->opcode->how) == O_MOVAL)
+ get_mova_operands (op_end, operand);
+ else if (OP_KIND (instruction->opcode->how) == O_RTEL
+ || OP_KIND (instruction->opcode->how) == O_RTSL)
+ get_rtsl_operands (op_end, operand);
+ else
+ get_operands (instruction->noperands, op_end, operand);
+
*op_end = c;
- prev_opcode = opcode;
+ prev_instruction = instruction;
- opcode = get_specific (opcode, operand);
+ /* Now we have operands from instruction.
+ Let's check them out for ldm and stm. */
+ if (OP_KIND (instruction->opcode->how) == O_LDM)
+ {
+ /* The first operand must be @er7+, and the
+ second operand must be a register pair. */
+ if ((operand[0].mode != RSINC)
+ || (operand[0].reg != 7)
+ || ((operand[1].reg & 0x80000000) == 0))
+ as_bad (_("invalid operand in ldm"));
+ }
+ else if (OP_KIND (instruction->opcode->how) == O_STM)
+ {
+ /* The first operand must be a register pair,
+ and the second operand must be @-er7. */
+ if (((operand[0].reg & 0x80000000) == 0)
+ || (operand[1].mode != RDDEC)
+ || (operand[1].reg != 7))
+ as_bad (_("invalid operand in stm"));
+ }
- if (opcode == 0)
+ size = SN;
+ if (dot)
{
- /* Couldn't find an opcode which matched the operands */
- char *where = frag_more (2);
+ switch (TOLOWER (*dot))
+ {
+ case 'b':
+ size = SB;
+ break;
- where[0] = 0x0;
- where[1] = 0x0;
- clever_message (prev_opcode, operand);
+ case 'w':
+ size = SW;
+ break;
- return;
+ case 'l':
+ size = SL;
+ break;
+ }
}
- if (opcode->size && dot)
+ if (OP_KIND (instruction->opcode->how) == O_MOVAB ||
+ OP_KIND (instruction->opcode->how) == O_MOVAW ||
+ OP_KIND (instruction->opcode->how) == O_MOVAL)
{
- if (opcode->size != *dot)
+ switch (operand[0].mode & MODE)
{
- as_warn ("mismatch between opcode size and operand size");
+ case INDEXB:
+ default:
+ fix_operand_size (&operand[1], 1);
+ break;
+ case INDEXW:
+ fix_operand_size (&operand[1], 2);
+ break;
+ case INDEXL:
+ fix_operand_size (&operand[1], 4);
+ break;
}
}
+ else
+ {
+ for (i = 0; i < 3 && operand[i].mode != 0; i++)
+ switch (size)
+ {
+ case SN:
+ case SB:
+ default:
+ fix_operand_size (&operand[i], 1);
+ break;
+ case SW:
+ fix_operand_size (&operand[i], 2);
+ break;
+ case SL:
+ fix_operand_size (&operand[i], 4);
+ break;
+ }
+ }
- build_bytes (opcode, operand);
+ instruction = get_specific (instruction, operand, size);
-}
+ if (instruction == 0)
+ {
+ /* Couldn't find an opcode which matched the operands. */
+ char *where = frag_more (2);
-void
-tc_crawl_symbol_chain (headers)
- object_headers * headers;
-{
- printf ("call to tc_crawl_symbol_chain \n");
+ where[0] = 0x0;
+ where[1] = 0x0;
+ clever_message (prev_instruction, operand);
+
+ return;
+ }
+
+ build_bytes (instruction, operand);
+
+ dwarf2_emit_insn (instruction->length);
}
symbolS *
-md_undefined_symbol (name)
- char *name;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
return 0;
}
-void
-tc_headers_hook (headers)
- object_headers * headers;
+/* Various routines to kill one day. */
+
+const char *
+md_atof (int type, char *litP, int *sizeP)
{
- printf ("call to tc_headers_hook \n");
+ return ieee_md_atof (type, litP, sizeP, TRUE);
}
+\f
+#define OPTION_H_TICK_HEX (OPTION_MD_BASE)
+#define OPTION_MACH (OPTION_MD_BASE+1)
-/* Various routines to kill one day */
-/* Equal to MAX_PRECISION in atof-ieee.c */
-#define MAX_LITTLENUMS 6
-
-/* Turn a string in input_line_pointer into a floating point constant of type
- type, and store the appropriate bytes in *litP. The number of LITTLENUMS
- emitted is stored in *sizeP . An error message is returned, or NULL on OK.
- */
-char *
-md_atof (type, litP, sizeP)
- char type;
- char *litP;
- int *sizeP;
+const char *md_shortopts = "";
+struct option md_longopts[] =
{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- LITTLENUM_TYPE *wordP;
- char *t;
- char *atof_ieee ();
+ { "h-tick-hex", no_argument, NULL, OPTION_H_TICK_HEX },
+ { "mach", required_argument, NULL, OPTION_MACH },
+ {NULL, no_argument, NULL, 0}
+};
- switch (type)
- {
- case 'f':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
+size_t md_longopts_size = sizeof (md_longopts);
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
+struct mach_func
+{
+ const char *name;
+ void (*func) (void);
+};
- case 'x':
- case 'X':
- prec = 6;
- break;
+static void
+mach_h8300h (void)
+{
+ Hmode = 1;
+ Smode = 0;
+ Nmode = 0;
+ SXmode = 0;
+ default_mach = bfd_mach_h8300h;
+}
- case 'p':
- case 'P':
- prec = 6;
- break;
+static void
+mach_h8300hn (void)
+{
+ Hmode = 1;
+ Smode = 0;
+ Nmode = 1;
+ SXmode = 0;
+ default_mach = bfd_mach_h8300hn;
+}
- default:
- *sizeP = 0;
- return "Bad call to MD_ATOF()";
- }
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
+static void
+mach_h8300s (void)
+{
+ Hmode = 1;
+ Smode = 1;
+ Nmode = 0;
+ SXmode = 0;
+ default_mach = bfd_mach_h8300s;
+}
- *sizeP = prec * sizeof (LITTLENUM_TYPE);
- for (wordP = words; prec--;)
- {
- md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
- litP += sizeof (LITTLENUM_TYPE);
- }
- return 0;
+static void
+mach_h8300sn (void)
+{
+ Hmode = 1;
+ Smode = 1;
+ Nmode = 1;
+ SXmode = 0;
+ default_mach = bfd_mach_h8300sn;
}
-\f
-CONST char *md_shortopts = "";
-struct option md_longopts[] = {
- {NULL, no_argument, NULL, 0}
-};
-size_t md_longopts_size = sizeof(md_longopts);
-int
-md_parse_option (c, arg)
- int c;
- char *arg;
+static void
+mach_h8300sx (void)
{
- return 0;
+ Hmode = 1;
+ Smode = 1;
+ Nmode = 0;
+ SXmode = 1;
+ default_mach = bfd_mach_h8300sx;
}
-void
-md_show_usage (stream)
- FILE *stream;
+static void
+mach_h8300sxn (void)
{
+ Hmode = 1;
+ Smode = 1;
+ Nmode = 1;
+ SXmode = 1;
+ default_mach = bfd_mach_h8300sxn;
}
-\f
-int md_short_jump_size;
-void
-tc_aout_fix_to_chars ()
+const struct mach_func mach_table[] =
{
- printf ("call to tc_aout_fix_to_chars \n");
- abort ();
+ {"h8300h", mach_h8300h},
+ {"h8300hn", mach_h8300hn},
+ {"h8300s", mach_h8300s},
+ {"h8300sn", mach_h8300sn},
+ {"h8300sx", mach_h8300sx},
+ {"h8300sxn", mach_h8300sxn}
+};
+
+int
+md_parse_option (int c ATTRIBUTE_UNUSED, const char *arg ATTRIBUTE_UNUSED)
+{
+ unsigned int i;
+ switch (c)
+ {
+ case OPTION_H_TICK_HEX:
+ enable_h_tick_hex = 1;
+ break;
+ case OPTION_MACH:
+ for (i = 0; i < sizeof(mach_table) / sizeof(struct mach_func); i++)
+ {
+ if (strcasecmp (arg, mach_table[i].name) == 0)
+ {
+ mach_table[i].func();
+ break;
+ }
+ }
+ if (i >= sizeof(mach_table) / sizeof(struct mach_func))
+ as_bad (_("Invalid argument to --mach option: %s"), arg);
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr;
- addressT to_addr;
- fragS *frag;
- symbolS *to_symbol;
+md_show_usage (FILE *stream)
{
- as_fatal ("failed sanity check.");
+ fprintf (stream, _(" H8300-specific assembler options:\n"));
+ fprintf (stream, _("\
+ -mach=<name> Set the H8300 machine type to one of:\n\
+ h8300h, h8300hn, h8300s, h8300sn, h8300sx, h8300sxn\n"));
+ fprintf (stream, _("\
+ -h-tick-hex Support H'00 style hex constants\n"));
}
+\f
+void tc_aout_fix_to_chars (void);
void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
+tc_aout_fix_to_chars (void)
{
- as_fatal ("failed sanity check.");
+ printf (_("call to tc_aout_fix_to_chars \n"));
+ abort ();
}
void
-md_convert_frag (headers, fragP)
- object_headers *headers;
- fragS *fragP;
-
+md_convert_frag (bfd *headers ATTRIBUTE_UNUSED,
+ segT seg ATTRIBUTE_UNUSED,
+ fragS *fragP ATTRIBUTE_UNUSED)
{
- printf ("call to md_convert_frag \n");
+ printf (_("call to md_convert_frag \n"));
abort ();
}
-valueT
-md_section_align (seg, size)
- segT seg;
- valueT size;
+valueT
+md_section_align (segT segment, valueT size)
{
- return ((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg]));
-
+ int align = bfd_get_section_alignment (stdoutput, segment);
+ return ((size + (1 << align) - 1) & (-1U << align));
}
void
-md_apply_fix (fixP, val)
- fixS *fixP;
- long val;
+md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+ long val = *valP;
switch (fixP->fx_size)
{
*buf++ = (val >> 8);
*buf++ = val;
break;
+ case 8:
+ /* This can arise when the .quad or .8byte pseudo-ops are used.
+ Returning here (without setting fx_done) will cause the code
+ to attempt to generate a reloc which will then fail with the
+ slightly more helpful error message: "Cannot represent
+ relocation type BFD_RELOC_64". */
+ return;
default:
abort ();
-
}
-}
-void
-md_operand (expressionP)
- expressionS * expressionP;
-{
+ if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
+ fixP->fx_done = 1;
}
-int md_long_jump_size;
-
int
-md_estimate_size_before_relax (fragP, segment_type)
- register fragS *fragP;
- register segT segment_type;
+md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED,
+ segT segment_type ATTRIBUTE_UNUSED)
{
- printf ("call tomd_estimate_size_before_relax \n");
+ printf (_("call to md_estimate_size_before_relax \n"));
abort ();
}
-/* Put number into target byte order */
-
+/* Put number into target byte order. */
void
-md_number_to_chars (ptr, use, nbytes)
- char *ptr;
- valueT use;
- int nbytes;
+md_number_to_chars (char *ptr, valueT use, int nbytes)
{
- switch (nbytes)
- {
- case 4:
- *ptr++ = (use >> 24) & 0xff;
- case 3:
- *ptr++ = (use >> 16) & 0xff;
- case 2:
- *ptr++ = (use >> 8) & 0xff;
- case 1:
- *ptr++ = (use >> 0) & 0xff;
- break;
- default:
- abort ();
- }
+ number_to_chars_bigendian (ptr, use, nbytes);
}
+
long
-md_pcrel_from (fixP)
- fixS *fixP;
+md_pcrel_from (fixS *fixp)
{
- abort ();
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("Unexpected reference to a symbol in a non-code section"));
+ return 0;
}
-
-void
-tc_reloc_mangle (fix_ptr, intr, base)
- fixS *fix_ptr;
- struct internal_reloc *intr;
- bfd_vma base;
-
+arelent *
+tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
{
- symbolS *symbol_ptr;
-
- symbol_ptr = fix_ptr->fx_addsy;
+ arelent *rel;
+ bfd_reloc_code_real_type r_type;
- /* If this relocation is attached to a symbol then it's ok
- to output it */
- if (fix_ptr->fx_r_type == RELOC_32)
+ if (fixp->fx_addsy && fixp->fx_subsy)
{
- /* cons likes to create reloc32's whatever the size of the reloc..
- */
- switch (fix_ptr->fx_size)
+ if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy))
+ || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section)
{
-
- case 2:
- intr->r_type = R_RELWORD;
- break;
- case 1:
- intr->r_type = R_RELBYTE;
- break;
- default:
- abort ();
-
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("Difference of symbols in different sections is not supported"));
+ return NULL;
}
-
}
- else
- {
- intr->r_type = fix_ptr->fx_r_type;
- }
-
- intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
- intr->r_offset = fix_ptr->fx_offset;
- if (symbol_ptr)
- intr->r_symndx = symbol_ptr->sy_number;
- else
- intr->r_symndx = -1;
+ rel = xmalloc (sizeof (arelent));
+ rel->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
+ rel->addend = fixp->fx_offset;
+ r_type = fixp->fx_r_type;
-}
+#define DEBUG 0
+#if DEBUG
+ fprintf (stderr, "%s\n", bfd_get_reloc_code_name (r_type));
+ fflush (stderr);
+#endif
+ rel->howto = bfd_reloc_type_lookup (stdoutput, r_type);
+ if (rel->howto == NULL)
+ {
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("Cannot represent relocation type %s"),
+ bfd_get_reloc_code_name (r_type));
+ return NULL;
+ }
-tc_coff_sizemachdep ()
-{
- abort ();
+ return rel;
}
-
-/* end of tc-h8300.c */
projects / deliverable / binutils-gdb.git / blobdiff