-/* tc-h8300.c -- Assemble code for the Hitachi H8/300
- Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 2000
- Free Software Foundation.
+/* tc-h8300.c -- Assemble code for the Renesas H8/300
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
+ 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
-/*
- Written By Steve Chamberlain
- sac@cygnus.com
- */
+/* Written By Steve Chamberlain <sac@cygnus.com>. */
#include <stdio.h>
#include "as.h"
#include "subsegs.h"
#include "bfd.h"
+
+#ifdef BFD_ASSEMBLER
+#include "dwarf2dbg.h"
+#endif
+
#define DEFINE_TABLE
#define h8_opcodes ops
#include "opcode/h8300.h"
-#include <ctype.h>
+#include "safe-ctype.h"
+
+#ifdef OBJ_ELF
+#include "elf/h8.h"
+#endif
const char comment_chars[] = ";";
const char line_comment_chars[] = "#";
const char line_separator_chars[] = "";
-/* 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
- */
-
-void cons ();
+void cons PARAMS ((int));
+void sbranch PARAMS ((int));
+void h8300hmode PARAMS ((int));
+void h8300smode PARAMS ((int));
+void h8300hnmode PARAMS ((int));
+void h8300snmode PARAMS ((int));
+void h8300sxmode PARAMS ((int));
+static void pint PARAMS ((int));
int Hmode;
int Smode;
+int Nmode;
+int SXmode;
+
#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 bsize = L_8; /* Default branch displacement. */
+
+struct h8_instruction
+{
+ int length;
+ int noperands;
+ int idx;
+ int size;
+ const struct h8_opcode *opcode;
+};
+
+struct h8_instruction *h8_instructions;
void
-h8300hmode ()
+h8300hmode (arg)
+ int arg ATTRIBUTE_UNUSED;
{
Hmode = 1;
Smode = 0;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300h))
+ as_warn (_("could not set architecture and machine"));
+#endif
}
void
-h8300smode ()
+h8300smode (arg)
+ int arg ATTRIBUTE_UNUSED;
{
Smode = 1;
Hmode = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300s))
+ as_warn (_("could not set architecture and machine"));
+#endif
+}
+
+void
+h8300hnmode (arg)
+ int arg ATTRIBUTE_UNUSED;
+{
+ Hmode = 1;
+ Smode = 0;
+ Nmode = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300hn))
+ as_warn (_("could not set architecture and machine"));
+#endif
+}
+
+void
+h8300snmode (arg)
+ int arg ATTRIBUTE_UNUSED;
+{
+ Smode = 1;
+ Hmode = 1;
+ Nmode = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sn))
+ as_warn (_("could not set architecture and machine"));
+#endif
+}
+
+void
+h8300sxmode (arg)
+ int arg ATTRIBUTE_UNUSED;
+{
+ Smode = 1;
+ Hmode = 1;
+ SXmode = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sx))
+ as_warn (_("could not set architecture and machine"));
+#endif
+}
+
+void
+h8300sxnmode (arg)
+ int arg ATTRIBUTE_UNUSED;
+{
+ Smode = 1;
+ Hmode = 1;
+ SXmode = 1;
+ Nmode = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sxn))
+ as_warn (_("could not set architecture and machine"));
+#endif
}
void
}
static void
-pint ()
+pint (arg)
+ int arg ATTRIBUTE_UNUSED;
{
cons (Hmode ? 4 : 2);
}
+/* 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},
- {"h8300s", h8300smode, 0},
+ {"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},
{0, 0, 0}
};
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 */
+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. */
+
void
md_begin ()
{
- struct h8_opcode *opcode;
+ unsigned int nopcodes;
+ struct h8_opcode *p, *p1;
+ struct h8_instruction *pi;
char prev_buffer[100];
int idx = 0;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300))
+ as_warn (_("could not set architecture and machine"));
+#endif
+
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)
{
- /* 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;
+ struct h8_opcode *first_skipped = 0;
+ int len, cmplen = 0;
+ char *src = p1->name;
+ char *dst, *buffer;
- opcode->size = 0;
+ if (p1->name == 0)
+ break;
+ /* Strip off any . part when inserting the opcode and only enter
+ 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. */
+ pi->noperands = 0;
+ while (pi->noperands < 3 && p->args.nib[pi->noperands] != (op_type) E)
+ pi->noperands++;
- /* 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. */
+ pi->length = 0;
+ while (p->data.nib[pi->length * 2] != (op_type) E)
+ pi->length++;
- /* Find the length of the opcode in bytes. */
- opcode->length = 0;
- while (opcode->data.nib[opcode->length * 2] != E)
- opcode->length++;
+ pi->opcode = p;
+ pi++;
+ }
+ p1 = first_skipped;
}
+ /* Add entry for the NULL vector terminator. */
+ pi->length = 0;
+ pi->noperands = 0;
+ pi->idx = 0;
+ pi->size = 0;
+ pi->opcode = 0;
+
linkrelax = 1;
}
expressionS e_exp;
};
-int dispreg;
-int opsize; /* Set when a register size is seen */
-
struct h8_op
{
op_type mode;
expressionS exp;
};
+static void clever_message PARAMS ((const struct h8_instruction *, struct h8_op *));
+static void fix_operand_size PARAMS ((struct h8_op *, int));
+static void build_bytes PARAMS ((const struct h8_instruction *, struct h8_op *));
+static void do_a_fix_imm PARAMS ((int, int, struct h8_op *, int));
+static void check_operand PARAMS ((struct h8_op *, unsigned int, char *));
+static const struct h8_instruction * get_specific PARAMS ((const struct h8_instruction *, struct h8_op *, int));
+static char * get_operands PARAMS ((unsigned, char *, struct h8_op *));
+static void get_operand PARAMS ((char **, struct h8_op *, int));
+static char * skip_colonthing PARAMS ((char *, expressionS *, int *));
+static char * parse_exp PARAMS ((char *, expressionS *));
+static int parse_reg PARAMS ((char *, op_type *, unsigned *, int));
+char * colonmod24 PARAMS ((struct h8_op *, char *));
+
+static int constant_fits_width_p PARAMS ((struct h8_op *, unsigned int));
+static int constant_fits_size_p PARAMS ((struct h8_op *, int, int));
+
/*
parse operands
WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
ccr
*/
-/* Try and parse a reg name, returns number of chars consumed. */
+/* Try to parse a reg name. Return the number of chars consumed. */
+
static int
parse_reg (src, mode, reg, direction)
char *src;
op_type *mode;
unsigned int *reg;
int direction;
-
{
char *end;
int len;
if (!is_name_beginner (*src) || *src == '\001')
return 0;
end = src + 1;
- while (is_part_of_name (*end) || *end == '\001')
+ while ((is_part_of_name (*end) && *end != '.') || *end == '\001')
end++;
len = end - src;
- if (len == 2 && src[0] == 's' && src[1] == 'p')
+ if (len == 2 && TOLOWER (src[0]) == 's' && TOLOWER (src[1]) == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 7;
return len;
}
- if (len == 3 && 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 len;
}
- if (len == 3 && src[0] == 'e' && src[1] == 'x' && src[2] == 'r')
+ if (len == 3 &&
+ TOLOWER (src[0]) == 'e' &&
+ TOLOWER (src[1]) == 'x' &&
+ TOLOWER (src[2]) == 'r')
{
*mode = EXR;
- *reg = 0;
+ *reg = 1;
+ return len;
+ }
+ 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 && src[0] == 'f' && src[1] == 'p')
+ if (len == 2 && TOLOWER (src[0]) == 'f' && TOLOWER (src[1]) == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 6;
return len;
}
- if (len == 3 && 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';
as_warn (_("Reg not valid for H8/300"));
return len;
}
- if (len == 2 && 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;
return len;
}
- if (src[0] == 'r')
+ if (TOLOWER (src[0]) == 'r')
{
if (src[1] >= '0' && src[1] <= '7')
{
- if (len == 3 && src[2] == 'l')
+ if (len == 3 && TOLOWER (src[2]) == 'l')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0') + 8;
return len;
}
- if (len == 3 && src[2] == 'h')
+ if (len == 3 && TOLOWER (src[2]) == 'h')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0');
{
ptr++;
*mode &= ~SIZE;
- if (*ptr == '8')
- {
- ptr++;
- /* ff fill any 8 bit quantity */
- /* exp->X_add_number -= 0x100; */
- *mode |= L_8;
- }
+ if (ptr[0] == '8' && ! ISDIGIT (ptr[1]))
+ *mode |= L_8;
+ else if (ptr[0] == '2' && ! ISDIGIT (ptr[1]))
+ *mode |= L_2;
+ else if (ptr[0] == '3' && ! ISDIGIT (ptr[1]))
+ *mode |= L_3;
+ else if (ptr[0] == '4' && ! ISDIGIT (ptr[1]))
+ *mode |= L_4;
+ else if (ptr[0] == '5' && ! ISDIGIT (ptr[1]))
+ *mode |= L_5;
+ else if (ptr[0] == '2' && ptr[1] == '4')
+ *mode |= L_24;
+ else if (ptr[0] == '3' && ptr[1] == '2')
+ *mode |= L_32;
+ else if (ptr[0] == '1' && ptr[1] == '6')
+ *mode |= L_16;
else
- {
- if (*ptr == '2')
- {
- *mode |= L_24;
- }
- else if (*ptr == '3')
- {
- *mode |= L_32;
- }
- else if (*ptr == '1')
- {
- *mode |= L_16;
- }
- while (isdigit (*ptr))
- ptr++;
- }
+ as_bad (_("invalid operand size requested"));
+
+ while (ISDIGIT (*ptr))
+ ptr++;
}
return ptr;
}
#xx[:size] immediate data
@(exp:[8], pc) pc rel
- @@aa[:8] memory indirect
-
- */
+ @@aa[:8] memory indirect. */
char *
colonmod24 (op, src)
struct h8_op *op;
char *src;
-
{
int mode = 0;
src = skip_colonthing (src, &op->exp, &mode);
if (!mode)
{
- /* Choose a default mode. */
+ /* If the operand is a 16-bit constant integer, leave fix_operand_size
+ to calculate its size. Otherwise choose a default here. */
if (op->exp.X_add_number < -32768
|| op->exp.X_add_number > 32767)
{
else if (op->exp.X_add_symbol
|| op->exp.X_op_symbol)
mode = DSYMMODE;
- else
- mode = DMODE;
}
+
op->mode |= mode;
return src;
+}
+static int
+constant_fits_width_p (operand, width)
+ struct h8_op *operand;
+ unsigned int width;
+{
+ return ((operand->exp.X_add_number & ~width) == 0
+ || (operand->exp.X_add_number | width) == (unsigned)(~0));
+}
+
+static int
+constant_fits_size_p (operand, size, no_symbols)
+ struct h8_op *operand;
+ int size, no_symbols;
+{
+ offsetT num = operand->exp.X_add_number;
+ if (no_symbols
+ && (operand->exp.X_add_symbol != 0 || operand->exp.X_op_symbol != 0))
+ return 0;
+ switch (size)
+ {
+ 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:
+ return (num & ~0xFF) == 0 || ((unsigned)num | 0x7F) == ~0u;
+ case L_8U:
+ return (num & ~0xFF) == 0;
+ case L_16:
+ return (num & ~0xFFFF) == 0 || ((unsigned)num | 0x7FFF) == ~0u;
+ case L_16U:
+ return (num & ~0xFFFF) == 0;
+ case L_32:
+ return 1;
+ default:
+ abort ();
+ }
}
static void
-get_operand (ptr, op, dst, direction)
+get_operand (ptr, op, direction)
char **ptr;
struct h8_op *op;
- unsigned int dst ATTRIBUTE_UNUSED;
int direction;
{
char *src = *ptr;
unsigned int num;
unsigned int len;
- 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 (src[0] == 'e' && src[1] == 'r' && isdigit (src[2])
- && src[3] == '-' && src[4] == 'e' && src[5] == 'r' && isdigit (src[6]))
+ 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';
- if (high < low)
+ if (high == low)
as_bad (_("Invalid register list for ldm/stm\n"));
- if (low % 2)
+ if (high < low)
as_bad (_("Invalid register list for ldm/stm\n"));
if (high - low > 3)
- as_bad (_("Invalid register list for ldm/stm\n"));
-
- if (high - low != 1
- && low % 4)
- as_bad (_("Invalid register list for ldm/stm\n"));
+ 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
so we know this is "very special". */
op->reg = 0x80000000 | (high << 8) | low;
op->mode = REG;
- *ptr = src + 7;
+ 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;
}
*ptr = src;
- op->mode = MEMIND;
+ if (op->exp.X_add_number >= 0x100)
+ {
+ int divisor;
+
+ 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->exp.X_add_number = op->exp.X_add_number / divisor - 0x80;
+ }
+ else
+ op->mode = MEMIND;
+
return;
}
- if (*src == '-')
+ if (*src == '-' || *src == '+')
{
+ char c = *src;
src++;
len = parse_reg (src, &mode, &num, direction);
if (len == 0)
if ((mode & SIZE) != PSIZE)
as_bad (_("Wrong size pointer register for architecture."));
- op->mode = RDDEC;
+ op->mode = c == '-' ? RDPREDEC : RDPREINC;
op->reg = num;
*ptr = src + len;
return;
}
if (*src == '(')
{
- /* Disp. */
src++;
+ /* 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...). */
+ }
+
+ /* Disp. */
+
/* Start off assuming a 16 bit offset. */
src = parse_exp (src, &op->exp);
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)"));
return;
}
- op->mode |= DISP | direction;
- dispreg = op->reg;
src += len;
+ 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->exp, &op->mode);
if (*src != ')' && '(')
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;
+ op->mode = *src == '+' ? RSPOSTINC : RSPOSTDEC;
op->reg = num;
+ src++;
*ptr = src;
return;
}
return;
}
- else if (strncmp (src, "mach", 4) == 0
- || strncmp (src, "macl", 4) == 0)
+ else if (strncmp (src, "mach", 4) == 0 ||
+ strncmp (src, "macl", 4) == 0 ||
+ strncmp (src, "MACH", 4) == 0 ||
+ strncmp (src, "MACL", 4) == 0)
{
- op->reg = src[3] == 'l';
+ op->reg = TOLOWER (src[3]) == 'l';
op->mode = MACREG;
*ptr = src + 4;
return;
src += 2;
}
else
- {
- as_bad (_("expect :8 or :16 here"));
- }
+ as_bad (_("expect :8 or :16 here"));
}
else
{
- op->mode = PCREL | bsize;
+ int val = op->exp.X_add_number;
+
+ op->mode = PCREL;
+ if (-128 < val && val < 127)
+ op->mode |= L_8;
+ else
+ op->mode |= L_16;
}
+
*ptr = src;
}
}
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);
- }
- else
- {
- operand[1].mode = 0;
+ get_operand (&ptr, operand + 1, DST);
}
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, 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 + 1, 1, DST);
+ get_operand (&ptr, operand + 2, OP3);
break;
default:
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].exp);
+ ptr = colonmod24 (operand + 0, ptr);
+
+ 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\""));
+ return;
+}
+
+static void
+get_rtsl_operands (char *ptr, struct h8_op *operand)
+{
+ int mode, num, num2, len, type = 0;
+
+ ptr++;
+ if (*ptr == '(')
+ {
+ ptr++;
+ type = 1;
+ }
+ len = parse_reg (ptr, &mode, &num, SRC);
+ if (len == 0 || (mode & MODE) != REG)
+ {
+ as_bad (_("expected register"));
+ return;
+ }
+ if (type == 1)
+ {
+ ptr += len;
+ if (*ptr++ != '-')
+ {
+ as_bad (_("expected register list"));
+ return;
+ }
+ len = parse_reg (ptr, &mode, &num2, SRC);
+ if (len == 0 || (mode & MODE) != REG)
+ {
+ as_bad (_("expected register"));
+ return;
+ }
+ ptr += len;
+ if (*ptr++ != ')')
+ {
+ as_bad (_("expected closing paren"));
+ return;
+ }
+ /* CONST_xxx are used as placeholders in the opcode table. */
+ num = num2 - num;
+ if (num < 1 || num > 3)
+ {
+ as_bad (_("invalid register list"));
+ return;
+ }
+ }
+ else
+ num2 = num, num = 0;
+ 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, size)
- struct h8_opcode *opcode;
+
+static const struct h8_instruction *
+get_specific (instruction, operands, size)
+ 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;
-
- unsigned int this_index = opcode->idx;
+ int this_index = instruction->idx;
+ int noperands = 0;
/* There's only one ldm/stm and it's easier to just
get out quick for them. */
- if (strcmp (opcode->name, "stm.l") == 0
- || strcmp (opcode->name, "ldm.l") == 0)
+ if (OP_KIND (instruction->opcode->how) == O_LDM
+ || OP_KIND (instruction->opcode->how) == O_STM)
return this_try;
- while (this_index == opcode->idx && !found)
+ while (noperands < 3 && operands[noperands].mode != 0)
+ noperands++;
+
+ while (this_index == instruction->idx && !found)
{
- found = 1;
+ int this_size;
- this_try = opcode++;
- if (this_try->noperands == 0)
- {
- int this_size;
+ found = 1;
+ this_try = instruction++;
+ this_size = this_try->opcode->how & SN;
- this_size = this_try->how & SN;
- if (this_size != size && (this_size != SB || size != SN))
- found = 0;
- }
- else
+ if (this_try->noperands != noperands)
+ found = 0;
+ else if (this_try->noperands > 0)
{
- unsigned int i;
+ int i;
for (i = 0; i < this_try->noperands && found; i++)
{
- op_type op = this_try->args.nib[i];
+ 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 & (DISP | REG)) == (DISP | REG)
- && ((x & (DISP | REG)) == (DISP | REG)))
+ if (op_mode == LOWREG && (x_mode == REG || x_mode == LOWREG))
{
- dispreg = operands[i].reg;
+ 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_size != op_size)
+ found = 0;
}
- else if (op & REG)
+ else if (op_mode == REG)
{
- if (!(x & REG))
+ if (x_mode == LOWREG)
+ x_mode = REG;
+ if (x_mode != REG)
found = 0;
- if (x & L_P)
- x = (x & ~L_P) | (Hmode ? L_32 : L_16);
- if (op & L_P)
- op = (op & ~L_P) | (Hmode ? L_32 : L_16);
-
- opsize = op & SIZE;
+ 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))
+ if (op_size != x_size)
found = 0;
}
- else if ((op & ABSJMP) && (x & ABS))
+ else if (op_mode & CTRL) /* control register */
{
- operands[i].mode &= ~ABS;
+ 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;
+ }
+ }
+ else if ((op & ABSJMP) && (x_mode == ABS || x_mode == PCREL))
+ {
+ operands[i].mode &= ~MODE;
operands[i].mode |= ABSJMP;
/* But it may not be 24 bits long. */
- if (!Hmode)
+ 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))
+ else if (x_mode == IMM && op_mode != IMM)
{
- /* This is ok if the immediate value is sensible. */
+ offsetT num = operands[i].exp.X_add_number;
+ 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 & PCREL)
+ else if (op_mode == PCREL && op_mode == x_mode)
{
+ /* movsd only comes in PCREL16 flavour:
+ If x_size is L_8, promote it. */
+ if (OP_KIND (this_try->opcode->how) == O_MOVSD)
+ if (x_size == L_8)
+ x_size = L_16;
+
/* The size of the displacement is important. */
- if ((op & SIZE) != (x & SIZE))
+ if (op_size != x_size)
found = 0;
}
- else if ((op & (DISP | IMM | ABS))
- && (op & (DISP | IMM | ABS)) == (x & (DISP | IMM | ABS)))
+ 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 & L_24) && (op & L_32))
+ if (x_size == L_24 && op_size == L_32)
{
- x &= ~L_24;
- x |= L_32;
+ x &= ~SIZE;
+ x |= x_size = L_32;
}
+
+#if 0 /* ??? */
/* Promote an L8 to L_16 if it makes us match. */
- if (op & ABS && op & L_8 && op & DISP)
+ if ((op_mode == ABS || op_mode == DISP) && x_size == L_8)
{
- if (x & L_16)
- found = 1;
+ if (op_size == L_16)
+ x_size = L_16;
}
- else if ((x & SIZE) != 0
- && ((op & SIZE) != (x & SIZE)))
+#endif
+
+ if (((x_size == L_16 && op_size == L_16U)
+ || (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 & MACREG) != (x & MACREG))
- {
- found = 0;
- }
- else if ((op & MODE) != (x & MODE))
+ 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_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
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
&& (operand->exp.X_add_number & 0xff00) == 0xff00)
fit a 16 bit address truncated into an 8 bit address
of something like bset. */
}
+ else if (strcmp (string, "@") == 0
+ && width == 0xffff
+ && (operand->exp.X_add_number & 0xff8000) == 0xff8000)
+ {
+ /* 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,
(may relax into an 8bit absolute address). */
static void
-do_a_fix_imm (offset, operand, relaxmode)
- int offset;
+do_a_fix_imm (offset, nibble, operand, relaxmode)
+ int offset, nibble;
struct h8_op *operand;
int relaxmode;
{
int idx;
int size;
int where;
+ char *bytes = frag_now->fr_literal + offset;
- char *t = operand->mode & IMM ? "#" : "@";
+ 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;
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;
+ 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)
{
idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
default:
as_bad (_("Can't work out size of operand.\n"));
case L_16:
+ case L_16U:
size = 2;
where = 0;
if (relaxmode == 2)
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;
idx = R_RELBYTE;
operand->exp.X_add_number =
((operand->exp.X_add_number & 0xff) ^ 0x80) - 0x80;
+ operand->exp.X_add_number |= bytes[0];
}
fix_new_exp (frag_now,
}
/* 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;
+ const struct h8_instruction *this_try;
struct h8_op *operand;
{
- unsigned int i;
-
+ int i;
char *output = frag_more (this_try->length);
- op_type *nibble_ptr = this_try->data.nib;
+ op_type *nibble_ptr = this_try->opcode->data.nib;
op_type c;
unsigned int nibble_count = 0;
- int absat;
- int immat;
- int nib;
+ int op_at[3];
+ int nib = 0;
int movb = 0;
- char asnibbles[30];
+ char asnibbles[100];
char *p = asnibbles;
+ int high, low;
- if (!(this_try->inbase || Hmode))
+ if (!Hmode && this_try->opcode->available != AV_H8)
as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"),
- this_try->name);
-
- while (*nibble_ptr != E)
+ 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 | SRC_IN_DST)) != 0;
+ d = (c & OP3) == OP3 ? 2 : (c & DST) == DST ? 1 : 0;
if (c < 16)
- {
- nib = c;
- }
+ nib = c;
else
{
- if (c & (REG | IND | INC | DEC))
+ int c2 = c & MODE;
+
+ if (c2 == REG || c2 == LOWREG
+ || c2 == IND || c2 == PREINC || c2 == PREDEC
+ || c2 == POSTINC || c2 == POSTDEC)
{
nib = operand[d].reg;
+ if (c2 == LOWREG)
+ nib &= 7;
}
+
+ else if (c & CTRL) /* Control reg operand. */
+ nib = operand[d].reg;
+
else if ((c & DISPREG) == (DISPREG))
{
- nib = dispreg;
+ 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)
{
as_bad (_("Need #1 or #2 here"));
}
}
- else if (c & KBIT)
+ else if (c2 == KBIT)
{
switch (operand[0].exp.X_add_number)
{
}
if (c & MEMRELAX)
- {
- operand[d].mode |= MEMRELAX;
- }
+ operand[d].mode |= MEMRELAX;
if (c & B31)
- {
- nib |= 0x8;
- }
+ nib |= 0x8;
+
+ if (c & B21)
+ nib |= 0x4;
+
+ if (c & B11)
+ nib |= 0x2;
+
+ if (c & B01)
+ nib |= 0x1;
- if (c & MACREG)
+ if (c2 == MACREG)
{
- nib = 2 + operand[d].reg;
+ 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++;
/* Disgusting. Why, oh why didn't someone ask us for advice
on the assembler format. */
- if (strcmp (this_try->name, "stm.l") == 0
- || strcmp (this_try->name, "ldm.l") == 0)
+ if (OP_KIND (this_try->opcode->how) == O_LDM)
{
- int high, low;
- high = (operand[this_try->name[0] == 'l' ? 1 : 0].reg >> 8) & 0xf;
- low = operand[this_try->name[0] == 'l' ? 1 : 0].reg & 0xf;
-
+ high = (operand[1].reg >> 8) & 0xf;
+ low = (operand[1].reg) & 0xf;
asnibbles[2] = high - low;
- asnibbles[7] = (this_try->name[0] == 'l') ? high : low;
+ asnibbles[7] = high;
}
-
- for (i = 0; i < this_try->length; i++)
+ 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;
}
+ for (i = 0; i < this_try->length; i++)
+ output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
+
/* Note if this is a movb instruction -- there's a special relaxation
which only applies to them. */
- if (strcmp (this_try->name, "mov.b") == 0)
+ if (this_try->opcode->how == O (O_MOV, SB))
movb = 1;
/* Output any fixes. */
- for (i = 0; i < 2; i++)
+ for (i = 0; i < this_try->noperands; i++)
{
int x = operand[i].mode;
+ int x_mode = x & MODE;
- if (x & (IMM | DISP))
- {
- do_a_fix_imm (output - frag_now->fr_literal + immat,
- operand + i, x & MEMRELAX != 0);
- }
- else if (x & ABS)
- {
- do_a_fix_imm (output - frag_now->fr_literal + absat,
- operand + i, x & MEMRELAX ? movb + 1 : 0);
- }
- else if (x & PCREL)
+ if (x_mode == IMM || x_mode == DISP)
+ do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
+ op_at[i] & 1, operand + i, (x & MEMRELAX) != 0);
+
+ 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);
+
+ 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)
{
- as_warn (_("branch operand has odd offset (%lx)\n"),
- (unsigned long) operand->exp.X_add_number);
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
+ }
+ else
+ {
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80;
}
- operand[i].exp.X_add_number -= 1;
- operand[i].exp.X_add_number =
- ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80;
-
+ /* 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_mode == MEMIND)
+ {
+ check_operand (operand + i, 0xff, "@@");
fix_new_exp (frag_now,
- output - frag_now->fr_literal + where,
- size,
- &operand[i].exp,
+ output - frag_now->fr_literal + 1,
1,
- type);
+ &operand[i].exp,
+ 0,
+ R_MEM_INDIRECT);
}
- else if (x & MEMIND)
+ else if (x_mode == VECIND)
{
- check_operand (operand + i, 0xff, "@@");
+ 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,
}
else if (x & ABSJMP)
{
+ int where = 0;
+ bfd_reloc_code_real_type reloc_type = R_JMPL1;
+
+#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)
+ {
+ where = 2;
+ reloc_type = R_RELLONG;
+ }
+ else
+ where = 1;
+#endif
+
/* This jmp may be a jump or a branch. */
- check_operand (operand + i, Hmode ? 0xffffff : 0xffff, "@");
+ 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);
- }
+ as_warn (_("branch operand has odd offset (%lx)\n"),
+ (unsigned long) operand->exp.X_add_number);
+
if (!Hmode)
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 to give an intelligent error message for common and simple to
detect errors. */
+
static void
-clever_message (opcode, operand)
- struct h8_opcode *opcode;
+clever_message (instruction, operand)
+ const struct h8_instruction *instruction;
struct h8_op *operand;
{
/* Find out if there was more than one possible opcode. */
- if ((opcode + 1)->idx != opcode->idx)
+ if ((instruction + 1)->idx != instruction->idx)
{
- unsigned int argn;
+ int argn;
/* Only one opcode of this flavour, try to guess which operand
didn't match. */
- for (argn = 0; argn < opcode->noperands; argn++)
+ 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 (_("invalid operands"));
}
+
+/* Adjust OPERAND's value and size given that it is accessing a field
+ of SIZE bytes.
+
+ This function handles the choice between @(d:2,ERn) and @(d:16,ERn)
+ when no size is explicitly given. It also scales down the assembly-level
+ displacement in an @(d:2,ERn) operand. */
+
+static void
+fix_operand_size (operand, size)
+ struct h8_op *operand;
+ int size;
+{
+ if ((operand->mode & MODE) == DISP)
+ {
+ /* If the user didn't specify an operand width, see if we
+ can use @(d:2,ERn). */
+ if (SXmode
+ && (operand->mode & SIZE) == 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 the operand needs a size but doesn't have one yet, it must be
+ a 16-bit integer (see colonmod24). */
+ if ((operand->mode & SIZE) == 0)
+ switch (operand->mode & MODE)
+ {
+ case DISP:
+ case INDEXB:
+ case INDEXW:
+ case INDEXL:
+ case ABS:
+ 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;
{
char *op_start;
char *op_end;
- 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 c;
- int size;
+ int size, i;
/* Drop leading whitespace. */
while (*str == ' ')
*op_end = 0;
- opcode = (struct h8_opcode *) hash_find (opcode_hash_control,
- op_start);
+ instruction = (const struct h8_instruction *)
+ hash_find (opcode_hash_control, op_start);
- if (opcode == NULL)
+ if (instruction == NULL)
{
as_bad (_("unknown opcode"));
return;
/* 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;
size = SN;
if (dot)
break;
}
}
- opcode = get_specific (opcode, operand, size);
+ if (OP_KIND (instruction->opcode->how) == O_MOVAB ||
+ OP_KIND (instruction->opcode->how) == O_MOVAW ||
+ OP_KIND (instruction->opcode->how) == O_MOVAL)
+ {
+ switch (operand[0].mode & MODE)
+ {
+ 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;
+ }
+ }
+
+ instruction = get_specific (instruction, operand, size);
- if (opcode == 0)
+ if (instruction == 0)
{
/* Couldn't find an opcode which matched the operands. */
char *where = frag_more (2);
where[0] = 0x0;
where[1] = 0x0;
- clever_message (prev_opcode, operand);
+ clever_message (prev_instruction, operand);
return;
}
- if (opcode->size && dot)
- {
- if (opcode->size != *dot)
- {
- as_warn (_("mismatch between opcode size and operand size"));
- }
- }
- build_bytes (opcode, operand);
+ build_bytes (instruction, operand);
+
+#ifdef BFD_ASSEMBLER
+ dwarf2_emit_insn (instruction->length);
+#endif
}
+#ifndef BFD_ASSEMBLER
void
tc_crawl_symbol_chain (headers)
object_headers *headers ATTRIBUTE_UNUSED;
{
printf (_("call to tc_crawl_symbol_chain \n"));
}
+#endif
symbolS *
md_undefined_symbol (name)
return 0;
}
+#ifndef BFD_ASSEMBLER
void
tc_headers_hook (headers)
object_headers *headers ATTRIBUTE_UNUSED;
{
printf (_("call to tc_headers_hook \n"));
}
+#endif
/* Various routines to kill one day */
/* Equal to MAX_PRECISION in atof-ieee.c */
/* 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
+ of LITTLENUMS emitted is stored in *SIZEP. An error message is
returned, or NULL on OK. */
+
char *
md_atof (type, litP, sizeP)
char type;
LITTLENUM_TYPE words[MAX_LITTLENUMS];
LITTLENUM_TYPE *wordP;
char *t;
- char *atof_ieee ();
switch (type)
{
return 0;
}
\f
-CONST char *md_shortopts = "";
+const char *md_shortopts = "";
struct option md_longopts[] = {
{NULL, no_argument, NULL, 0}
};
{
}
\f
+void tc_aout_fix_to_chars PARAMS ((void));
+
void
tc_aout_fix_to_chars ()
{
void
md_convert_frag (headers, seg, fragP)
+#ifdef BFD_ASSEMBLER
+ bfd *headers ATTRIBUTE_UNUSED;
+#else
object_headers *headers ATTRIBUTE_UNUSED;
+#endif
segT seg ATTRIBUTE_UNUSED;
fragS *fragP ATTRIBUTE_UNUSED;
{
abort ();
}
+#ifdef BFD_ASSEMBLER
+valueT
+md_section_align (segment, size)
+ segT segment;
+ valueT size;
+{
+ int align = bfd_get_section_alignment (stdoutput, segment);
+ return ((size + (1 << align) - 1) & (-1 << align));
+}
+#else
valueT
md_section_align (seg, size)
segT seg;
return ((size + (1 << section_alignment[(int) seg]) - 1)
& (-1 << section_alignment[(int) seg]));
}
+#endif
+
void
-md_apply_fix (fixP, val)
+md_apply_fix3 (fixP, valP, seg)
fixS *fixP;
- long val;
+ valueT *valP;
+ segT seg ATTRIBUTE_UNUSED;
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+ long val = *valP;
switch (fixP->fx_size)
{
default:
abort ();
}
+
+ if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
+ fixP->fx_done = 1;
}
int
abort ();
}
+#ifndef BFD_ASSEMBLER
void
tc_reloc_mangle (fix_ptr, intr, base)
fixS *fix_ptr;
else
intr->r_symndx = -1;
}
+#else /* BFD_ASSEMBLER */
+arelent *
+tc_gen_reloc (section, fixp)
+ asection *section ATTRIBUTE_UNUSED;
+ fixS *fixp;
+{
+ arelent *rel;
+ bfd_reloc_code_real_type r_type;
+
+ if (fixp->fx_addsy && fixp->fx_subsy)
+ {
+ if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy))
+ || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section)
+ {
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ "Difference of symbols in different sections is not supported");
+ return NULL;
+ }
+ }
+
+ rel = (arelent *) xmalloc (sizeof (arelent));
+ rel->sym_ptr_ptr = (asymbol **) 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;
+ }
+
+ return rel;
+}
+#endif
projects / deliverable / binutils-gdb.git / blobdiff