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-rw-r--r--gas/config/tc-h8300.c1595
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diff --git a/gas/config/tc-h8300.c b/gas/config/tc-h8300.c
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index 115ada15423..00000000000
--- a/gas/config/tc-h8300.c
+++ /dev/null
@@ -1,1595 +0,0 @@
-/* tc-h8300.c -- Assemble code for the Hitachi H8/300
- Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation.
-
- 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)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
-
-
-/*
- Written By Steve Chamberlain
- sac@cygnus.com
- */
-
-#include <stdio.h>
-#include "as.h"
-#include "subsegs.h"
-#include "bfd.h"
-#define DEFINE_TABLE
-#define h8_opcodes ops
-#include "opcode/h8300.h"
-#include <ctype.h>
-
-const char comment_chars[] =
-{';', 0};
-const char line_separator_chars[] =
-{0};
-const char line_comment_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 ();
-
-int Hmode;
-int Smode;
-#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 */
-
-
-void
-h8300hmode ()
-{
- Hmode = 1;
- Smode = 0;
-}
-
-void
-h8300smode ()
-{
- Smode = 1;
- Hmode = 1;
-}
-void
-sbranch (size)
- int size;
-{
- bsize = size;
-}
-
-static void pint ()
-{
- cons (Hmode ? 4 : 2);
-}
-
-const pseudo_typeS md_pseudo_table[] =
-{
-
- {"h8300h", h8300hmode, 0},
- {"h8300s", h8300smode, 0},
- {"sbranch", sbranch, L_8},
- {"lbranch", sbranch, L_16},
-
- {"int", pint, 0},
- {"data.b", cons, 1},
- {"data.w", cons, 2},
- {"data.l", cons, 4},
- {"form", listing_psize, 0},
- {"heading", listing_title, 0},
- {"import", s_ignore, 0},
- {"page", listing_eject, 0},
- {"program", s_ignore, 0},
- {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 */
-const char FLT_CHARS[] = "rRsSfFdDxXpP";
-
-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;
- char prev_buffer[100];
- int idx = 0;
-
- opcode_hash_control = hash_new ();
- prev_buffer[0] = 0;
-
- for (opcode = h8_opcodes; opcode->name; opcode++)
- {
- /* 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;
- while (*src)
- {
- if (*src == '.')
- {
- src++;
- opcode->size = *src;
- break;
- }
- *dst++ = *src++;
- }
- *dst++ = 0;
- if (strcmp (buffer, prev_buffer))
- {
- hash_insert (opcode_hash_control, buffer, (char *) opcode);
- strcpy (prev_buffer, buffer);
- idx++;
- }
- opcode->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++;
- }
-
- linkrelax = 1;
-}
-
-
-struct h8_exp
-{
- char *e_beg;
- char *e_end;
- expressionS e_exp;
-};
-int dispreg;
-int opsize; /* Set when a register size is seen */
-
-
-struct h8_op
-{
- op_type mode;
- unsigned reg;
- expressionS exp;
-};
-
-/*
- parse operands
- WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
- r0l,r0h,..r7l,r7h
- @WREG
- @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;
-
-{
- char *end;
- int len;
-
- /* Cribbed from get_symbol_end(). */
- if (!is_name_beginner (*src) || *src == '\001')
- return 0;
- end = src+1;
- while (is_part_of_name (*end) || *end == '\001')
- end++;
- len = end - src;
-
- if (len == 2 && src[0] == 's' && src[1] == 'p')
- {
- *mode = PSIZE | REG | direction;
- *reg = 7;
- return len;
- }
- if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
- {
- *mode = CCR;
- *reg = 0;
- return len;
- }
- if (len == 3 && src[0] == 'e' && src[1] == 'x' && src[2] == 'r')
- {
- *mode = EXR;
- *reg = 0;
- return len;
- }
- if (len == 2 && src[0] == 'f' && 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')
- {
- *mode = L_32 | REG | direction;
- *reg = src[2] - '0';
- if (!Hmode)
- as_warn (_("Reg not valid for H8/300"));
- return len;
- }
- if (len == 2 && src[0] == 'e' && src[1] >= '0' && src[1] <= '7')
- {
- *mode = L_16 | REG | direction;
- *reg = src[1] - '0' + 8;
- if (!Hmode)
- as_warn (_("Reg not valid for H8/300"));
- return len;
- }
-
- if (src[0] == 'r')
- {
- if (src[1] >= '0' && src[1] <= '7')
- {
- if (len == 3 && src[2] == 'l')
- {
- *mode = L_8 | REG | direction;
- *reg = (src[1] - '0') + 8;
- return len;
- }
- if (len == 3 && src[2] == 'h')
- {
- *mode = L_8 | REG | direction;
- *reg = (src[1] - '0');
- return len;
- }
- if (len == 2)
- {
- *mode = L_16 | REG | direction;
- *reg = (src[1] - '0');
- return len;
- }
- }
- }
-
- return 0;
-}
-
-char *
-parse_exp (s, op)
- char *s;
- expressionS * 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;
- input_line_pointer = save;
- return new;
-}
-
-static char *
-skip_colonthing (ptr, exp, mode)
- char *ptr;
- expressionS *exp;
- int *mode;
-{
- if (*ptr == ':')
- {
- ptr++;
- *mode &= ~SIZE;
- if (*ptr == '8')
- {
- ptr++;
- /* ff fill any 8 bit quantity */
- /* exp->X_add_number -= 0x100;*/
- *mode |= L_8;
- }
- 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++;
- }
- }
- return ptr;
-}
-
-/* The many forms of operand:
-
- Rn Register direct
- @Rn Register indirect
- @(exp[:16], Rn) Register indirect with displacement
- @Rn+
- @-Rn
- @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
-
- */
-
-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 (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;
- }
- op->mode |= mode;
- return src;
-
-}
-
-
-static void
-get_operand (ptr, op, dst, direction)
- char **ptr;
- struct h8_op *op;
- unsigned int dst;
- int direction;
-{
- char *src = *ptr;
- op_type mode;
- unsigned int num;
- unsigned int len;
-
- op->mode = E;
-
- /* 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]))
- {
- int low, high;
-
- low = src[2] - '0';
- high = src[6] - '0';
-
- if (high < low)
- as_bad (_("Invalid register list for ldm/stm\n"));
-
- if (low % 2)
- 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"));
-
- /* 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;
- *ptr = src + 7;
- return;
- }
-
- len = parse_reg (src, &op->mode, &op->reg, direction);
- if (len)
- {
- *ptr = src + len;
- return;
- }
-
- if (*src == '@')
- {
- src++;
- if (*src == '@')
- {
- src++;
- src = parse_exp (src, &op->exp);
-
- src = skip_colonthing (src, &op->exp, &op->mode);
-
- *ptr = src;
-
- op->mode = MEMIND;
- return;
-
- }
-
-
- if (*src == '-')
- {
- src++;
- len = parse_reg (src, &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);
-
- return;
-
-
- }
-
-
- if ((mode & SIZE) != PSIZE)
- as_bad (_("Wrong size pointer register for architecture."));
- op->mode = RDDEC;
- op->reg = num;
- *ptr = src + len;
- return;
- }
- if (*src == '(')
- {
- /* Disp */
- src++;
-
- /* Start off assuming a 16 bit offset */
-
-
- src = parse_exp (src, &op->exp);
-
- src = colonmod24 (op, src);
-
- if (*src == ')')
- {
- src++;
- op->mode |= ABS | direction;
- *ptr = src;
- return;
- }
-
- if (*src != ',')
- {
- as_bad (_("expected @(exp, reg16)"));
- return;
-
- }
- src++;
-
- len = parse_reg (src, &mode, &op->reg, direction);
- if (len == 0 || !(mode & REG))
- {
- 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 != ')' && '(')
- {
- as_bad (_("expected @(exp, reg16)"));
- return;
- }
- *ptr = src + 1;
-
- return;
- }
- len = parse_reg (src, &mode, &num, direction);
-
- if (len)
- {
- src += len;
- if (*src == '+')
- {
- src++;
- if ((mode & SIZE) != PSIZE)
- as_bad (_("Wrong size pointer register for architecture."));
- op->mode = RSINC;
- op->reg = num;
- *ptr = src;
- return;
- }
- if ((mode & SIZE) != PSIZE)
- as_bad (_("Wrong size pointer register for architecture."));
-
- op->mode = direction | IND | PSIZE;
- op->reg = num;
- *ptr = src;
-
- return;
- }
- else
- {
- /* must be a symbol */
-
- op->mode = ABS | direction;
- src = parse_exp (src, &op->exp);
-
- *ptr = colonmod24 (op, src);
-
- return;
- }
- }
-
-
- if (*src == '#')
- {
- src++;
- op->mode = IMM;
- src = parse_exp (src, &op->exp);
- *ptr = skip_colonthing (src, &op->exp, &op->mode);
-
- return;
- }
- else if (strncmp (src, "mach", 4) == 0
- || strncmp (src, "macl", 4) == 0)
- {
- op->reg = 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;
- }
-}
-
-
-static
-char *
-get_operands (noperands, op_end, operand)
- 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);
- if (*ptr == ',')
- {
- ptr++;
- get_operand (&ptr, operand + 1, 1, DST);
- }
- else
- {
- operand[1].mode = 0;
- }
-
- break;
- case 2:
- ptr++;
- get_operand (&ptr, operand + 0, 0, SRC);
- if (*ptr == ',')
- ptr++;
- get_operand (&ptr, operand + 1, 1, DST);
- break;
-
- default:
- abort ();
- }
-
-
- return ptr;
-}
-
-/* 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;
- struct h8_op *operands;
- int size;
-{
- struct h8_opcode *this_try = opcode;
- int found = 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 (strcmp (opcode->name, "stm.l") == 0
- || strcmp (opcode->name, "ldm.l") == 0)
- return this_try;
-
- while (this_index == opcode->idx && !found)
- {
- found = 1;
-
- this_try = opcode++;
- if (this_try->noperands == 0)
- {
- int this_size;
-
- this_size = this_try->how & SN;
- if (this_size != size && (this_size != SB || size != SN))
- found = 0;
- }
- else
- {
- unsigned int i;
-
- for (i = 0; i < this_try->noperands && found; i++)
- {
- op_type op = this_try->args.nib[i];
- int x = operands[i].mode;
-
- if ((op & (DISP | REG)) == (DISP | REG)
- && ((x & (DISP | REG)) == (DISP | REG)))
- {
- dispreg = operands[i].reg;
- }
- else if (op & REG)
- {
- if (!(x & 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;
-
- /* 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)
- {
- operands[i].mode &= ~SIZE;
- operands[i].mode |= L_16;
- }
- }
- 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)))
- {
- /* Promote a L_24 to L_32 if it makes us match. */
- if ((x & L_24) && (op & L_32))
- {
- x &= ~L_24;
- x |= L_32;
- }
- /* Promote an L8 to L_16 if it makes us match. */
- if (op & ABS && op & L_8 && op & DISP)
- {
- if (x & L_16)
- found= 1;
- }
- else if ((x & SIZE) != 0
- && ((op & SIZE) != (x & SIZE)))
- found = 0;
- }
- else if ((op & MACREG) != (x & MACREG))
- {
- found = 0;
- }
- else if ((op & MODE) != (x & MODE))
- {
- found = 0;
- }
- }
- }
- }
- if (found)
- return this_try;
- else
- return 0;
-}
-
-static void
-check_operand (operand, width, string)
- struct h8_op *operand;
- unsigned int width;
- 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*/
-
- if ((operand->exp.X_add_number & ~width) != 0 &&
- (operand->exp.X_add_number | width) != (~0))
- {
- 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. */
- }
- 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, relaxmode)
- int offset;
- struct h8_op *operand;
- int relaxmode;
-{
- int idx;
- int size;
- int where;
-
-
- char *t = operand->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;
- break;
- case L_3:
- check_operand (operand, 0x7, t);
- bytes[0] |= (operand->exp.X_add_number) << 4;
- break;
- case L_8:
- check_operand (operand, 0xff, t);
- bytes[0] = operand->exp.X_add_number;
- break;
- case L_16:
- check_operand (operand, 0xffff, t);
- 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;
- 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;
- break;
- }
-
- }
- else
- {
- switch (operand->mode & SIZE)
- {
-
- case L_24:
- case L_32:
- size = 4;
- where = (operand->mode & SIZE) == L_24 ? -1 : 0;
- 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:
- size = 2;
- where = 0;
- if (relaxmode == 2)
- idx = R_MOV16B1;
- else
- idx = R_RELWORD;
- operand->exp.X_add_number = (short)operand->exp.X_add_number;
- break;
- case L_8:
- size = 1;
- where = 0;
- idx = R_RELBYTE;
- /* This used to use a cast to char, but that fails if char is an
- unsigned type. We can't use `signed char', as that isn't valid
- K&R C. */
- if (operand->exp.X_add_number & 0x80)
- operand->exp.X_add_number |= ((offsetT) -1 << 8);
- else
- operand->exp.X_add_number &= 0xff;
- }
-
- fix_new_exp (frag_now,
- offset + where,
- size,
- &operand->exp,
- 0,
- idx);
- }
-
-}
-
-/* Now we know what sort of opcodes it is, lets build the bytes -
- */
-static void
-build_bytes (this_try, operand)
- struct h8_opcode *this_try;
- struct h8_op *operand;
-{
- unsigned int i;
-
- char *output = frag_more (this_try->length);
- op_type *nibble_ptr = this_try->data.nib;
- op_type c;
- unsigned int nibble_count = 0;
- int absat;
- int immat;
- int nib;
- int movb = 0;
- char asnibbles[30];
- char *p = asnibbles;
-
- if (!(this_try->inbase || Hmode))
- as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"),
- this_try->name);
-
- while (*nibble_ptr != E)
- {
- int d;
- c = *nibble_ptr++;
-
- d = (c & (DST | SRC_IN_DST)) != 0;
-
- if (c < 16)
- {
- nib = c;
- }
- else
- {
-
- if (c & (REG | IND | INC | DEC))
- {
- nib = operand[d].reg;
- }
- else if ((c & DISPREG) == (DISPREG))
- {
- nib = dispreg;
- }
- else if (c & ABS )
- {
- operand[d].mode = c;
- absat = nibble_count / 2;
- nib = 0;
- }
- else if (c & (IMM | PCREL | ABS | ABSJMP | DISP))
- {
- operand[d].mode = c;
- immat = nibble_count / 2;
- nib = 0;
- }
- else if (c & IGNORE)
- {
- nib = 0;
- }
- else if (c & DBIT)
- {
- switch (operand[0].exp.X_add_number)
- {
- case 1:
- nib = c;
- break;
- case 2:
- nib = 0x8 | c;
- break;
- default:
- as_bad (_("Need #1 or #2 here"));
- }
- }
- else if (c & KBIT)
- {
- switch (operand[0].exp.X_add_number)
- {
- case 1:
- nib = 0;
- break;
- case 2:
- nib = 8;
- break;
- case 4:
- if (!Hmode)
- as_warn (_("#4 not valid on H8/300."));
- nib = 9;
- break;
-
- default:
- as_bad (_("Need #1 or #2 here"));
- break;
- }
- /* stop it making a fix */
- operand[0].mode = 0;
- }
-
- if (c & MEMRELAX)
- {
- operand[d].mode |= MEMRELAX;
- }
-
- if (c & B31)
- {
- nib |= 0x8;
- }
-
- if (c & MACREG)
- {
- nib = 2 + operand[d].reg;
- }
- }
- nibble_count++;
-
- *p++ = nib;
- }
-
- /* 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)
- {
- 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;
-
- asnibbles[2] = high - low;
- asnibbles[7] = (this_try->name[0] == 'l') ? high : 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)
- movb = 1;
-
- /* output any fixes */
- for (i = 0; i < 2; i++)
- {
- int x = operand[i].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)
- {
- int size16 = x & L_16;
- int where = size16 ? 2 : 1;
- int size = size16 ? 2 : 1;
- int type = size16 ? R_PCRWORD : R_PCRBYTE;
-
- 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);
- }
-
- operand[i].exp.X_add_number -= 1;
- /* This used to use a cast to char, but that fails if char is an
- unsigned type. We can't use `signed char', as that isn't valid
- K&R C. */
- if (operand[i].exp.X_add_number & 0x80)
- operand[i].exp.X_add_number |= ((offsetT) -1 << 8);
- else
- operand[i].exp.X_add_number &= 0xff;
-
- fix_new_exp (frag_now,
- output - frag_now->fr_literal + where,
- size,
- &operand[i].exp,
- 1,
- type);
- }
- else if (x & MEMIND)
- {
-
- check_operand (operand + i, 0xff, "@@");
- 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 */
-
- check_operand (operand + i, 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;
- fix_new_exp (frag_now,
- output - frag_now->fr_literal,
- 4,
- &operand[i].exp,
- 0,
- R_JMPL1);
- }
- }
-
-}
-
-/*
- try and 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;
-{
- /* Find out if there was more than one possible opccode */
-
- if ((opcode + 1)->idx != opcode->idx)
- {
- unsigned int argn;
-
- /* Only one opcode of this flavour, try and guess which operand
- didn't match */
- for (argn = 0; argn < opcode->noperands; argn++)
- {
- switch (opcode->args.nib[argn])
- {
- case RD16:
- if (operand[argn].mode != RD16)
- {
- 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"));
- return;
- }
- break;
-
- case ABS16DST:
- if (operand[argn].mode != ABS16DST)
- {
- 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"));
- return;
- }
- break;
-
-
- case ABS16SRC:
- if (operand[argn].mode != ABS16SRC)
- {
- as_bad (_("source operand must be 16bit absolute address"));
- return;
- }
- break;
-
- }
- }
- }
- 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.
- */
-
-
-
-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;
-
- char *dot = 0;
- char c;
- int size;
-
- /* Drop leading whitespace */
- while (*str == ' ')
- str++;
-
- /* find the op code end */
- for (op_start = op_end = str;
- *op_end != 0 && *op_end != ' ';
- op_end++)
- {
- if (*op_end == '.')
- {
- dot = op_end + 1;
- *op_end = 0;
- op_end += 2;
- break;
- }
- }
-
- ;
-
- if (op_end == op_start)
- {
- as_bad (_("can't find opcode "));
- }
- c = *op_end;
-
- *op_end = 0;
-
- opcode = (struct h8_opcode *) hash_find (opcode_hash_control,
- op_start);
-
- if (opcode == NULL)
- {
- as_bad (_("unknown opcode"));
- return;
- }
-
- /* We use 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);
- *op_end = c;
- prev_opcode = opcode;
-
- size = SN;
- if (dot)
- {
- switch (*dot)
- {
- case 'b':
- size = SB;
- break;
-
- case 'w':
- size = SW;
- break;
-
- case 'l':
- size = SL;
- break;
- }
- }
- opcode = get_specific (opcode, operand, size);
-
- if (opcode == 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);
-
- return;
- }
- if (opcode->size && dot)
- {
- if (opcode->size != *dot)
- {
- as_warn (_("mismatch between opcode size and operand size"));
- }
- }
-
- build_bytes (opcode, operand);
-
-}
-
-void
-tc_crawl_symbol_chain (headers)
- object_headers * headers;
-{
- printf (_("call to tc_crawl_symbol_chain \n"));
-}
-
-symbolS *
-md_undefined_symbol (name)
- char *name;
-{
- return 0;
-}
-
-void
-tc_headers_hook (headers)
- object_headers * headers;
-{
- printf (_("call to tc_headers_hook \n"));
-}
-
-/* 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;
-{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- LITTLENUM_TYPE *wordP;
- char *t;
- char *atof_ieee ();
-
- switch (type)
- {
- case 'f':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
-
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
-
- case 'x':
- case 'X':
- prec = 6;
- break;
-
- case 'p':
- case 'P':
- prec = 6;
- break;
-
- default:
- *sizeP = 0;
- return _("Bad call to MD_ATOF()");
- }
- t = atof_ieee (input_line_pointer, type, words);
- if (t)
- input_line_pointer = t;
-
- *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;
-}
-
-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;
-{
- return 0;
-}
-
-void
-md_show_usage (stream)
- FILE *stream;
-{
-}
-
-void
-tc_aout_fix_to_chars ()
-{
- printf (_("call to tc_aout_fix_to_chars \n"));
- abort ();
-}
-
-void
-md_convert_frag (headers, seg, fragP)
- object_headers *headers;
- segT seg;
- fragS *fragP;
-{
- printf (_("call to md_convert_frag \n"));
- abort ();
-}
-
-valueT
-md_section_align (seg, size)
- segT seg;
- valueT size;
-{
- return ((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg]));
-
-}
-
-void
-md_apply_fix (fixP, val)
- fixS *fixP;
- long val;
-{
- char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
-
- switch (fixP->fx_size)
- {
- case 1:
- *buf++ = val;
- break;
- case 2:
- *buf++ = (val >> 8);
- *buf++ = val;
- break;
- case 4:
- *buf++ = (val >> 24);
- *buf++ = (val >> 16);
- *buf++ = (val >> 8);
- *buf++ = val;
- break;
- default:
- abort ();
- }
-}
-
-int
-md_estimate_size_before_relax (fragP, segment_type)
- register fragS *fragP;
- register segT segment_type;
-{
- printf (_("call tomd_estimate_size_before_relax \n"));
- abort ();
-}
-
-/* Put number into target byte order */
-
-void
-md_number_to_chars (ptr, use, nbytes)
- char *ptr;
- valueT use;
- int nbytes;
-{
- number_to_chars_bigendian (ptr, use, nbytes);
-}
-long
-md_pcrel_from (fixP)
- fixS *fixP;
-{
- abort ();
-}
-
-
-void
-tc_reloc_mangle (fix_ptr, intr, base)
- fixS *fix_ptr;
- struct internal_reloc *intr;
- bfd_vma base;
-
-{
- symbolS *symbol_ptr;
-
- symbol_ptr = fix_ptr->fx_addsy;
-
- /* If this relocation is attached to a symbol then it's ok
- to output it */
- if (fix_ptr->fx_r_type == TC_CONS_RELOC)
- {
- /* cons likes to create reloc32's whatever the size of the reloc..
- */
- switch (fix_ptr->fx_size)
- {
- case 4:
- intr->r_type = R_RELLONG;
- break;
- case 2:
- intr->r_type = R_RELWORD;
- break;
- case 1:
- intr->r_type = R_RELBYTE;
- break;
- default:
- abort ();
-
- }
-
- }
- 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)
- {
- if (symbol_ptr->sy_number != -1)
- intr->r_symndx = symbol_ptr->sy_number;
- else
- {
- symbolS *segsym;
-
- /* This case arises when a reference is made to `.'. */
- segsym = seg_info (S_GET_SEGMENT (symbol_ptr))->dot;
- if (segsym == NULL)
- intr->r_symndx = -1;
- else
- {
- intr->r_symndx = segsym->sy_number;
- intr->r_offset += S_GET_VALUE (symbol_ptr);
- }
- }
- }
- else
- intr->r_symndx = -1;
-
-
-}
-
-/* end of tc-h8300.c */
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