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| author | Francois H. Theron <francois.theron@netronome.com> | 2018-11-13 12:33:16 +0200 |
|---|---|---|
| committer | Francois H. Theron <francois.theron@netronome.com> | 2018-11-13 15:33:21 +0200 |
| commit | 97b3f39201efc9029a9a27d65f13674964c51503 (patch) | |
| tree | 9456973ddda4674581b7a06d151b083da98a2162 /opcodes | |
| parent | 497d849d28d933016ae0ad388c86b08bb16dd504 (diff) | |
| download | gdb-97b3f39201efc9029a9a27d65f13674964c51503.zip gdb-97b3f39201efc9029a9a27d65f13674964c51503.tar.gz gdb-97b3f39201efc9029a9a27d65f13674964c51503.tar.bz2 | |
opcodes/nfp: Fix disassembly of crc[] with swapped operands.
The decoding of the CRC operation in alu instructions was using bits
from the instruction word directly, instead of srcA which would be
different if the swap bit was set.
Signed-off-by: Francois H. Theron <francois.theron@netronome.com>
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 4 | ||||
| -rw-r--r-- | opcodes/nfp-dis.c | 12 |
2 files changed, 10 insertions, 6 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 01eaa75..bfdca28 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,7 @@ +2018-11-13 Francois H. Theron <francois.theron@netronome.com> + + * nfp-dis.c: Fix crc[] disassembly if operands are swapped. + 2018-11-12 Sudakshina Das <sudi.das@arm.com> * aarch64-opc.c (aarch64_sys_regs_dc): New entries for diff --git a/opcodes/nfp-dis.c b/opcodes/nfp-dis.c index 03139ec..38390a9 100644 --- a/opcodes/nfp-dis.c +++ b/opcodes/nfp-dis.c @@ -1325,8 +1325,8 @@ nfp_me27_28_print_alu (uint64_t instr, unsigned int pred_cc, case 18: do_close_bracket = 0; dinfo->fprintf_func (dinfo->stream, "crc_%s[", - _BTST (instr, 3) ? "le" : "be"); - if (!nfp_me27_28_crc_op[_BF (instr, 7, 5)]) + _BTST (srcA, 3) ? "le" : "be"); + if (!nfp_me27_28_crc_op[_BF (srcA, 7, 5)]) { dinfo->fprintf_func (dinfo->stream, _(", <invalid CRC operator>, ")); err = TRUE; @@ -1334,7 +1334,7 @@ nfp_me27_28_print_alu (uint64_t instr, unsigned int pred_cc, else { dinfo->fprintf_func (dinfo->stream, "%s, ", - nfp_me27_28_crc_op[_BF (instr, 7, 5)]); + nfp_me27_28_crc_op[_BF (srcA, 7, 5)]); } /* Dest operand. */ @@ -1351,10 +1351,10 @@ nfp_me27_28_print_alu (uint64_t instr, unsigned int pred_cc, num_ctx, src_lmext, dinfo); dinfo->fprintf_func (dinfo->stream, "]"); - if (_BF (instr, 2, 0)) + if (_BF (srcA, 2, 0)) dinfo->fprintf_func (dinfo->stream, ", %s", - nfp_me27_28_crc_bytes[_BF (instr, 2, 0)]); - if (_BTST (instr, 4)) + nfp_me27_28_crc_bytes[_BF (srcA, 2, 0)]); + if (_BTST (srcA, 4)) dinfo->fprintf_func (dinfo->stream, ", bit_swap"); break; |