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| author | Richard Henderson <richard.henderson@linaro.org> | 2020-08-18 08:47:38 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-09-01 07:41:38 -0700 |
| commit | 081d8e02c352861af5deb20786160fa6860e5f8e (patch) | |
| tree | 2c2c7d616498882e7a555b36bde7addae56c42fd /target/microblaze/insns.decode | |
| parent | 39cf386458b4920ea14011af4cb5bb21c5e611fa (diff) | |
| download | qemu-081d8e02c352861af5deb20786160fa6860e5f8e.zip qemu-081d8e02c352861af5deb20786160fa6860e5f8e.tar.gz qemu-081d8e02c352861af5deb20786160fa6860e5f8e.tar.bz2 | |
target/microblaze: Convert dec_barrel to decodetree
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 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode index d265e36..4644def 100644 --- a/target/microblaze/insns.decode +++ b/target/microblaze/insns.decode @@ -30,6 +30,15 @@ # Officially typea, but with rb==0, which is not used. @typea0 ...... rd:5 ra:5 ................ &typea0 +# Officially typeb, but any immediate extension is unused. +@typeb_bs ...... rd:5 ra:5 ..... ...... imm:5 &typeb + +# For convenience, extract the two imm_w/imm_s fields, then pack +# them back together as "imm". Doing this makes it easiest to +# match the required zero at bit 5. +%ieimm 6:5 0:5 +@typeb_ie ...... rd:5 ra:5 ..... ..... . ..... &typeb imm=%ieimm + ### { @@ -51,6 +60,17 @@ andi 101001 ..... ..... ................ @typeb andn 100011 ..... ..... ..... 000 0000 0000 @typea andni 101011 ..... ..... ................ @typeb +bsrl 010001 ..... ..... ..... 000 0000 0000 @typea +bsra 010001 ..... ..... ..... 010 0000 0000 @typea +bsll 010001 ..... ..... ..... 100 0000 0000 @typea + +bsrli 011001 ..... ..... 00000 000000 ..... @typeb_bs +bsrai 011001 ..... ..... 00000 010000 ..... @typeb_bs +bslli 011001 ..... ..... 00000 100000 ..... @typeb_bs + +bsefi 011001 ..... ..... 01000 .....0 ..... @typeb_ie +bsifi 011001 ..... ..... 10000 .....0 ..... @typeb_ie + clz 100100 ..... ..... 00000 000 1110 0000 @typea0 cmp 000101 ..... ..... ..... 000 0000 0001 @typea |