/* tc-h8500.c -- Assemble code for the Hitachi H8/500
- Copyright (C) 1993, 94, 95, 1998 Free Software Foundation.
+ Copyright (C) 1993, 94, 95, 98, 2000 Free Software Foundation.
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"
/*
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
+ set up all the tables, etc. that the MD part of the assembler needs
*/
void
h8500_operand_info;
-/* 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)
char *src;
/* Cribbed from get_symbol_end(). */
if (!is_name_beginner (*src) || *src == '\001')
return 0;
- end = src+1;
+ end = src + 1;
while (is_part_of_name (*end) || *end == '\001')
end++;
len = end - src;
return 0;
}
-static
-char *
+static char *
parse_exp (s, op, page)
char *s;
expressionS *op;
exp_signed, exp_unsigned, exp_sandu
} sign_type;
-
static char *
skip_colonthing (sign, ptr, exp, def, size8, size16, size24)
sign_type sign;
/* Disp */
src++;
- src = skip_colonthing (exp_signed, src,
+ src = skip_colonthing (exp_signed, src,
op, RNIND_D16, RNIND_D8, RNIND_D16, 0);
if (*src != ',')
}
}
-static
-char *
+static char *
get_operands (info, args, operand)
h8500_opcode_info *info;
char *args;
/* Passed a pointer to a list of opcodes which use different
addressing modes, return the opcode which matches the opcodes
- provided
- */
+ provided. */
int pcrel8; /* Set when we've seen a pcrel operand */
-static
-h8500_opcode_info *
+static h8500_opcode_info *
get_specific (opcode, operands)
h8500_opcode_info *opcode;
h8500_operand_info *operands;
return operand->X_add_number;
}
-static
-void
+static void
insert (output, index, exp, reloc, pcrel)
char *output;
int index;
h8500_operand_info *operand;
{
/* All relaxable instructions start life as two bytes but can become
- three bytes long if a lonely branch and up to 9 bytes if long scb
- */
+ three bytes long if a lonely branch and up to 9 bytes if long
+ scb. */
char *p;
int len;
int type;
}
}
-/* 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 (opcode, operand)
h8500_opcode_info *opcode;
break;
case RD:
case RDIND:
-
output[index] |= rd;
break;
case RS:
case FPIND_D8:
insert (output, index, &displacement, R_H8500_IMM8, 0);
break;
-
case IMM16:
{
int p;
- switch (immediate_inpage) {
- case 'p':
- p = R_H8500_HIGH16;
- break;
- case 'h':
- p = R_H8500_HIGH16;
- break;
- default:
- p = R_H8500_IMM16;
- break;
- }
-
- insert (output, index, &immediate,p, 0);
+
+ switch (immediate_inpage)
+ {
+ case 'p':
+ p = R_H8500_HIGH16;
+ break;
+ case 'h':
+ p = R_H8500_HIGH16;
+ break;
+ default:
+ p = R_H8500_IMM16;
+ break;
+ }
+ insert (output, index, &immediate, p, 0);
}
-
index++;
break;
case RLIST:
case IMM8:
if (immediate_inpage)
- {
- insert (output, index, &immediate, R_H8500_HIGH8, 0);
- }
+ insert (output, index, &immediate, R_H8500_HIGH8, 0);
else
- {
- insert (output, index, &immediate, R_H8500_IMM8, 0);
- }
+ insert (output, index, &immediate, R_H8500_IMM8, 0);
break;
case PCREL16:
insert (output, index, &displacement, R_H8500_PCREL16, 1);
output[index] |= check (&immediate, 0, 15);
break;
case CR:
-
output[index] |= cr;
if (cr == 0)
- {
- output[0] |= 0x8;
- }
+ output[0] |= 0x8;
else
- {
- output[0] &= ~0x8;
- }
-
+ output[0] &= ~0x8;
break;
-
case CRB:
output[index] |= crb;
output[0] &= ~0x8;
}
}
-/* 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.
- */
+/* 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 to. */
void
-DEFUN (md_assemble, (str),
- char *str)
+md_assemble (str)
+ char *str;
{
char *op_start;
char *op_end;
int nlen = 0;
- /* 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 &&
- !is_end_of_line[*op_end] && *op_end != ' ';
+ !is_end_of_line[(unsigned char) *op_end] && *op_end != ' ';
op_end++)
{
if ( /**op_end != '.'
name[nlen] = 0;
if (op_end == op_start)
- {
- as_bad (_("can't find opcode "));
- }
+ as_bad (_("can't find opcode "));
opcode = (h8500_opcode_info *) hash_find (opcode_hash_control, name);
}
build_bytes (opcode, operand);
-
}
void
-DEFUN (tc_crawl_symbol_chain, (headers),
- object_headers * headers)
+tc_crawl_symbol_chain (headers)
+ object_headers *headers;
{
printf (_("call to tc_crawl_symbol_chain \n"));
}
symbolS *
-DEFUN (md_undefined_symbol, (name),
- char *name)
+md_undefined_symbol (name)
+ char *name;
{
return 0;
}
void
-DEFUN (tc_headers_hook, (headers),
- object_headers * headers)
+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 */
+/* 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.
- */
+/* 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;
struct option md_longopts[] = {
{NULL, no_argument, NULL, 0}
};
-size_t md_longopts_size = sizeof(md_longopts);
+size_t md_longopts_size = sizeof (md_longopts);
int
md_parse_option (c, arg)
abort ();
}
-static
-void
+static void
wordify_scb (buffer, disp_size, inst_size)
char *buffer;
int *disp_size;
*buffer++ = 0x04; /* cmp #0xff:8, rn */
*buffer++ = 0xff;
*buffer++ = 0x70 | rn;
- *buffer++ = 0x36; /* bne ... */
+ *buffer++ = 0x36; /* bne ... */
*buffer++ = 0;
*buffer++ = 0;
}
-/*
-called after relaxing, change the frags so they know how big they are
-*/
+/* Called after relaxing, change the frags so they know how big they
+ are. */
+
void
md_convert_frag (headers, seg, fragP)
object_headers *headers;
inst_size = 2;
break;
- /* Branches to a known 16 bit displacement */
+ /* Branches to a known 16 bit displacement. */
- /* Turn on the 16bit bit */
+ /* Turn on the 16bit bit. */
case C (BRANCH, WORD_DISP):
case C (SCB_F, WORD_DISP):
case C (SCB_TST, WORD_DISP):
case C (BRANCH, UNDEF_WORD_DISP):
case C (SCB_F, UNDEF_WORD_DISP):
case C (SCB_TST, UNDEF_WORD_DISP):
- /* This tried to be relaxed, but didn't manage it, it now needs a
- fix */
+ /* This tried to be relaxed, but didn't manage it, it now needs
+ a fix. */
wordify_scb (buffer, &disp_size, &inst_size);
/* Make a reloc */
segT seg ;
valueT size;
{
- return ((size + (1 << section_alignment[(int) seg]) - 1)
+ return ((size + (1 << section_alignment[(int) seg]) - 1)
& (-1 << section_alignment[(int) seg]));
}
if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type)
{
/* Got a symbol and it's defined in this segment, become byte
- sized - maybe it will fix up */
+ sized - maybe it will fix up. */
fragP->fr_subtype = C (what, BYTE_DISP);
fragP->fr_var = md_relax_table[C (what, BYTE_DISP)].rlx_length;
}
else
{
- /* Its got a segment, but its not ours, so it will always be long */
+ /* Its got a segment, but its not ours, so it will always be
+ long. */
fragP->fr_subtype = C (what, UNDEF_WORD_DISP);
fragP->fr_var = md_relax_table[C (what, WORD_DISP)].rlx_length;
return md_relax_table[C (what, WORD_DISP)].rlx_length;
return fragP->fr_var;
}
-/* Put number into target byte order */
+/* Put number into target byte order. */
void
md_number_to_chars (ptr, use, nbytes)
return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
}
-/*ARGSUSED*/
void
tc_coff_symbol_emit_hook (ignore)
symbolS *ignore;
dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
if (dot)
{
- /* intr->r_offset -=
- segment_info[S_GET_SEGMENT(symbol_ptr)].scnhdr.s_paddr;*/
+#if 0
+ intr->r_offset -=
+ segment_info[S_GET_SEGMENT (symbol_ptr)].scnhdr.s_paddr;
+#endif
intr->r_offset += S_GET_VALUE (symbol_ptr);
intr->r_symndx = dot->sy_number;
}
}
-
-
int
start_label (ptr)
char *ptr;
return 1;
}
-
int
tc_coff_sizemachdep (frag)
fragS *frag;
{
return md_relax_table[frag->fr_subtype].rlx_length;
}
-
-/* end of tc-h8500.c */
-
projects / deliverable / binutils-gdb.git / blobdiff