diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-08-17 22:17:58 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-09-01 07:41:38 -0700 |
| commit | 20800179655d9262716ff20895c3c9d81ecb2d17 (patch) | |
| tree | d1e1abba63b121472d5c55753e9fc4b409534c79 /target/microblaze/insns.decode | |
| parent | 44d1432ba25742624bdb9841b634d45b6711dcf8 (diff) | |
target/microblaze: Convert dec_add to decodetree
Adds infrastrucure for translation of instructions, which could
not be added before their first use. Cache a temporary which
represents r0 as the immediate 0 value, or a sink.
Move the special case of opcode_0_illegal from old_decode()
into decodetree as well, lest this get interpreted as add.
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/microblaze/insns.decode')
| -rw-r--r-- | target/microblaze/insns.decode | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode index 1ed9ca0731..5f289a446c 100644 --- a/target/microblaze/insns.decode +++ b/target/microblaze/insns.decode @@ -16,3 +16,27 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, see <http://www.gnu.org/licenses/>. # + +&typea rd ra rb +&typeb rd ra imm + +# Include any IMM prefix in the value reported. +%extimm 0:s16 !function=typeb_imm + +@typea ...... rd:5 ra:5 rb:5 ... .... .... &typea +@typeb ...... rd:5 ra:5 ................ &typeb imm=%extimm + +### + +{ + zero 000000 00000 00000 00000 000 0000 0000 + add 000000 ..... ..... ..... 000 0000 0000 @typea +} +addc 000010 ..... ..... ..... 000 0000 0000 @typea +addk 000100 ..... ..... ..... 000 0000 0000 @typea +addkc 000110 ..... ..... ..... 000 0000 0000 @typea + +addi 001000 ..... ..... ................ @typeb +addic 001010 ..... ..... ................ @typeb +addik 001100 ..... ..... ................ @typeb +addikc 001110 ..... ..... ................ @typeb |