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authorNathan Sidwell <nathan@codesourcery.com>2007-07-03 07:54:19 +0000
committerNathan Sidwell <nathan@codesourcery.com>2007-07-03 07:54:19 +0000
commitafa2158f09569ac8c57c27a001d6221e8c6bd39f (patch)
treea72eb9d405614d00cc12499577d717befbd84613 /opcodes/m68k-dis.c
parentae4a729bff61b571c63a35ffa265d321cf8f9c89 (diff)
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gas/testsuite/
* gas/m68k/mcf-coproc.d: New. * gas/m68k/mcf-coproc.s: New. * gas/m68k/all.exp: Add it. gas/ * config/tc-m68k.c (m68k_ip): Add j & K operand types. (install_operand): Add E encoding. (md_begin): Check and skip initial '.' arg character. (get_num): Add 0..511 case. include/ * opcode/m68k.h: Document j K & E. opcodes/ * m68k-dis.c (fetch_arg): Add E. Replace length switch with direct masking. (print_ins_arg): Add j & K operand types. (match_insn_m68k): Check and skip initial '.' arg character. (m68k_scan_mask): Likewise. * m68k-opc.c (m68k_opcodes): Add coprocessor instructions.
Diffstat (limited to 'opcodes/m68k-dis.c')
-rw-r--r--opcodes/m68k-dis.c68
1 files changed, 34 insertions, 34 deletions
diff --git a/opcodes/m68k-dis.c b/opcodes/m68k-dis.c
index d964ef4..99d4533 100644
--- a/opcodes/m68k-dis.c
+++ b/opcodes/m68k-dis.c
@@ -280,6 +280,11 @@ fetch_arg (unsigned char *buffer,
val = (buffer[1] >> 6);
break;
+ case 'E':
+ FETCH_DATA (info, buffer + 3);
+ val = (buffer[2] >> 1);
+ break;
+
case 'm':
val = (buffer[1] & 0x40 ? 0x8 : 0)
| ((buffer[0] >> 1) & 0x7)
@@ -310,29 +315,8 @@ fetch_arg (unsigned char *buffer,
abort ();
}
- switch (bits)
- {
- case 1:
- return val & 1;
- case 2:
- return val & 3;
- case 3:
- return val & 7;
- case 4:
- return val & 017;
- case 5:
- return val & 037;
- case 6:
- return val & 077;
- case 7:
- return val & 0177;
- case 8:
- return val & 0377;
- case 12:
- return val & 07777;
- default:
- abort ();
- }
+ /* bits is never too big. */
+ return val & ((1 << bits) - 1);
}
/* Check if an EA is valid for a particular code. This is required
@@ -685,6 +669,16 @@ print_insn_arg (const char *d,
(*info->fprintf_func) (info->stream, "#%d", val);
break;
+ case 'j':
+ val = fetch_arg (buffer, place, 3, info);
+ (*info->fprintf_func) (info->stream, "#%d", val+1);
+ break;
+
+ case 'K':
+ val = fetch_arg (buffer, place, 9, info);
+ (*info->fprintf_func) (info->stream, "#%d", val);
+ break;
+
case 'M':
if (place == 'h')
{
@@ -1214,6 +1208,7 @@ match_insn_m68k (bfd_vma memaddr,
unsigned char *save_p;
unsigned char *p;
const char *d;
+ const char *args = best->args;
struct private *priv = (struct private *) info->private_data;
bfd_byte *buffer = priv->the_buffer;
@@ -1221,6 +1216,9 @@ match_insn_m68k (bfd_vma memaddr,
void (* save_print_address) (bfd_vma, struct disassemble_info *)
= info->print_address_func;
+ if (*args == '.')
+ args++;
+
/* Point at first word of argument data,
and at descriptor for first argument. */
p = buffer + 2;
@@ -1229,7 +1227,7 @@ match_insn_m68k (bfd_vma memaddr,
The only place this is stored in the opcode table is
in the arguments--look for arguments which specify fields in the 2nd
or 3rd words of the instruction. */
- for (d = best->args; *d; d += 2)
+ for (d = args; *d; d += 2)
{
/* I don't think it is necessary to be checking d[0] here;
I suspect all this could be moved to the case statement below. */
@@ -1276,8 +1274,8 @@ match_insn_m68k (bfd_vma memaddr,
three words long. */
if (p - buffer < 6
&& (best->match & 0xffff) == 0xffff
- && best->args[0] == '#'
- && best->args[1] == 'w')
+ && args[0] == '#'
+ && args[1] == 'w')
{
/* Copy the one word argument into the usual location for a one
word argument, to simplify printing it. We can get away with
@@ -1291,15 +1289,13 @@ match_insn_m68k (bfd_vma memaddr,
FETCH_DATA (info, p);
- d = best->args;
-
save_p = p;
info->print_address_func = dummy_print_address;
info->fprintf_func = (fprintf_ftype) dummy_printer;
/* We scan the operands twice. The first time we don't print anything,
but look for errors. */
- for (; *d; d += 2)
+ for (d = args; *d; d += 2)
{
int eaten = print_insn_arg (d, buffer, p, memaddr + (p - buffer), info);
@@ -1329,7 +1325,7 @@ match_insn_m68k (bfd_vma memaddr,
info->fprintf_func = save_printer;
info->print_address_func = save_print_address;
- d = best->args;
+ d = args;
info->fprintf_func (info->stream, "%s", best->name);
@@ -1401,6 +1397,10 @@ m68k_scan_mask (bfd_vma memaddr, disassemble_info *info,
const struct m68k_opcode *opc = opcodes[major_opcode][i];
unsigned long opcode = opc->opcode;
unsigned long match = opc->match;
+ const char *args = opc->args;
+
+ if (*args == '.')
+ args++;
if (((0xff & buffer[0] & (match >> 24)) == (0xff & (opcode >> 24)))
&& ((0xff & buffer[1] & (match >> 16)) == (0xff & (opcode >> 16)))
@@ -1416,7 +1416,7 @@ m68k_scan_mask (bfd_vma memaddr, disassemble_info *info,
/* Don't use for printout the variants of divul and divsl
that have the same register number in two places.
The more general variants will match instead. */
- for (d = opc->args; *d; d += 2)
+ for (d = args; *d; d += 2)
if (d[1] == 'D')
break;
@@ -1424,7 +1424,7 @@ m68k_scan_mask (bfd_vma memaddr, disassemble_info *info,
point coprocessor instructions which use the same
register number in two places, as above. */
if (*d == '\0')
- for (d = opc->args; *d; d += 2)
+ for (d = args; *d; d += 2)
if (d[1] == 't')
break;
@@ -1432,7 +1432,7 @@ m68k_scan_mask (bfd_vma memaddr, disassemble_info *info,
wait for fmoveml. */
if (*d == '\0')
{
- for (d = opc->args; *d; d += 2)
+ for (d = args; *d; d += 2)
{
if (d[0] == 's' && d[1] == '8')
{
@@ -1446,7 +1446,7 @@ m68k_scan_mask (bfd_vma memaddr, disassemble_info *info,
/* Don't match FPU insns with non-default coprocessor ID. */
if (*d == '\0')
{
- for (d = opc->args; *d; d += 2)
+ for (d = args; *d; d += 2)
{
if (d[0] == 'I')
{