[PATCH bfin] Four pseudo instructions

[Jie Zhang]

Those pseudo instructions are mainly for ADI internal use. This patch 
adds support of HLT pseudo instruction. It also changes codings of other 
three pseudo instructons: DBGA, DBGAH and DBGAL such that more registers 
can be asserted.

Previous encoding:

+---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
| 1 | 1 | 1 | 1 | 0 | - | - | - | - | - |.dbgop.....|.regtest...|
|.expected......................................................|
+---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+

dbgop
0:   DBGA (Dregs_lo, uimm16);
1:   DBGA (Dregs_hi, uimm16);
2:   DBGAL (Dregs, uimm16);
3:   DBGAH (Dregs, uimm16);
4-7: reserved.

This encoding only allows Dregs to be asserted. With this patch, the new 
encoding is

+---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
| 1 | 1 | 1 | 1 | 0 | - | - | - | dbgop |.grp.......|.regtest...|
|.expected......................................................|
+---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+

This new encoding adds register group, thus all registers can be encoded.

dbgop
0:   DBGA (D/P/I/L/M/Bregs_lo, uimm16);
1:   DBGA (D/P/I/L/M/Bregs_hi, uimm16);
2:   DBGAL (allregs, uimm16);
3:   DBGAH (allregs, uimm16);

Committed.


Jie
-------------- next part --------------
A non-text attachment was scrubbed...
Name: binutils-bfin-HLT-DBGA-DBGAH-and-DBGAL.diff
Type: text/x-patch
Size: 7210 bytes
Desc: not available
URL: <https://sourceware.org/pipermail/binutils/attachments/20090904/16294b92/attachment.bin>