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(install_vif_length): Second pass at unpack len calcs. 

(s_endunpack): Round data up to word boundary.
This commit is contained in:
Doug Evans 1998-03-07 01:43:32 +00:00
parent 8fc527423a
commit 65309b9834
2 changed files with 21 additions and 4 deletions
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2
gas/ChangeLog
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@ -3,6 +3,8 @@ Fri Mar 6 11:36:37 1998 Doug Evans <devans@canuck.cygnus.com>
* config/tc-dvp.c (s_endgif): Fix nloop calc and test. Warn if
insufficient data present. Fix insertion of computed nloop value.
(install_vif_length): Second pass at unpack len calcs.
(s_endunpack): Round data up to word boundary.
end-sanitize-sky
start-sanitize-vr4320

23
gas/config/tc-dvp.c
View File

@ -1692,6 +1692,8 @@ cur_vif_insn_length ()
int byte_len;
fragS *f;
/* FIXME: A better and less fragile way would be to use eval_expr. */
if (cur_varlen_frag == frag_now)
byte_len = frag_more (0) - cur_varlen_insn - 4; /* -4 for mpg itself */
else
@ -1740,11 +1742,19 @@ install_vif_length (buf, len)
else if ((cmd & 0x60) == 0x60)
{
/* unpack */
/* FIXME: revisit */
/* ??? Worry about data /= 16 cuts off? */
len /= 16;
/* Round up to a word boundary. */
len = (len + 3) & ~3;
/* Compute value to insert. */
len = vif_unpack_len_value (cmd & 15, len);
/* -1 is returned if wl,cl are unknown and thus we can't compute
a useful value */
if (len == -1)
{
as_bad ("missing `stcycle', can't compute length of `unpack' insn");
len = 1;
}
if (len > 256)
as_bad ("`direct' data length must be between 1 and 256");
as_bad ("`unpack' data length must be between 1 and 256");
len = len == 256 ? 0 : len;
buf[2] = len;
}
@ -2088,10 +2098,15 @@ s_endunpack (ignore)
}
byte_len = cur_vif_insn_length ();
/* Round up to next word boundary. */
if (byte_len % 4)
frag_align (2, 0, 0);
#if 0 /* unpack doesn't support prespecifying a length */
if (cur_varlen_value * 16 != bytelen)
as_warn ("length in `direct' instruction does not match length of data");
#endif
if (output_vif)
install_vif_length (cur_varlen_insn, byte_len);