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* mn10300-dis.c (print_insn_mn10300): Fix fetch of last byte

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in 7 byte insns.
        (disassemble): Handle SPLIT and EXTENDED operands.
This commit is contained in:
Jeff Law 1996-11-20 17:36:31 +00:00
parent 3817470b80
commit f497f3ae7c
2 changed files with 27 additions and 4 deletions
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6
opcodes/ChangeLog
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@ -1,3 +1,9 @@
Wed Nov 20 10:37:13 1996 Jeffrey A Law (law@cygnus.com)
* mn10300-dis.c (print_insn_mn10300): Fix fetch of last byte
in 7 byte insns.
(disassemble): Handle SPLIT and EXTENDED operands.
Tue Nov 19 13:33:01 1996 Jeffrey A Law (law@cygnus.com)
* mn10300-dis.c: Rough cut at printing some operands.

25
opcodes/mn10300-dis.c
View File

@ -221,10 +221,10 @@ print_insn_mn10300 (memaddr, info)
}
extension = bfd_getb16 (buffer);
extension <<= 8;
status = (*info->read_memory_func) (memaddr + 7, buffer, 1, info);
status = (*info->read_memory_func) (memaddr + 6, buffer, 1, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr + 7, info);
(*info->memory_error_func) (status, memaddr + 6, info);
return -1;
}
extension |= *(unsigned char *)buffer;
@ -298,8 +298,25 @@ disassemble (memaddr, info, insn, extension, size)
operand = &mn10300_operands[*opindex_ptr];
value = ((insn >> (operand->shift))
& ((1 << operand->bits) - 1));
if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
{
unsigned long temp;
value = insn & ((1 << operand->bits) - 1);
value <<= (32 - operand->bits);
temp = extension >> operand->shift;
temp &= ((1 << 32 - operand->bits) - 1);
value |= temp;
}
else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0)
{
value = ((extension >> (operand->shift))
& ((1 << operand->bits) - 1));
}
else
{
value = ((insn >> (operand->shift))
& ((1 << operand->bits) - 1));
}
if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
value = ((long)(value << (32 - operand->bits))