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ndisasm: fix handing of byte codes 250-253, 324

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Fix handling of byte codes 250-253 (sign-extended 32-bit immediate,
extended to 64 bits) and 324 (instruction must have osize 64).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2010-08-16 22:13:14 -07:00
parent 8810e0f794
commit 7023d638de
1 changed files with 12 additions and 2 deletions
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14
disasm.c
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@ -1,6 +1,6 @@
/* ----------------------------------------------------------------------- *
*
* Copyright 1996-2009 The NASM Authors - All Rights Reserved
* Copyright 1996-2010 The NASM Authors - All Rights Reserved
* See the file AUTHORS included with the NASM distribution for
* the specific copyright holders.
*
@ -674,6 +674,16 @@ static int matches(const struct itemplate *t, uint8_t *data,
break;
}
case4(0250):
if (s_field_for == op1) {
opx->offset = gets8(data);
data++;
} else {
opx->offset = gets32(data);
data += 4;
}
break;
case4(0260):
{
int vexm = *r++;
@ -823,7 +833,7 @@ static int matches(const struct itemplate *t, uint8_t *data,
break;
case 0324:
if (!(ins->rex & (REX_P|REX_W)) || osize != 64)
if (osize != 64)
return false;
o_used = true;
break;