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| author | Richard Henderson <richard.henderson@linaro.org> | 2020-08-19 09:04:09 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-09-01 07:41:38 -0700 |
| commit | d5aead3df4369f56bf79bcd97a06cd63e4acfee6 (patch) | |
| tree | 2a7a5fd1853baf3ab26e1b1cb08c0a53d7fde12b /target/microblaze/insns.decode | |
| parent | e64b2e5cfe1a6a158f134e5bfa6c246d23ad1d9d (diff) | |
| download | qemu-d5aead3df4369f56bf79bcd97a06cd63e4acfee6.zip | |
target/microblaze: Convert dec_fpu to decodetree
The current dec_check_fpuv2 test, raising an FPU exception for
an unimplemented instruction, appears to be contradictory to
the manual. Drop that and merely check use_fpu == 2.
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 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode index ad15c16f9b..87e8f5679b 100644 --- a/target/microblaze/insns.decode +++ b/target/microblaze/insns.decode @@ -76,6 +76,25 @@ clz 100100 ..... ..... 00000 000 1110 0000 @typea0 cmp 000101 ..... ..... ..... 000 0000 0001 @typea cmpu 000101 ..... ..... ..... 000 0000 0011 @typea +fadd 010110 ..... ..... ..... 0000 000 0000 @typea +frsub 010110 ..... ..... ..... 0001 000 0000 @typea +fmul 010110 ..... ..... ..... 0010 000 0000 @typea +fdiv 010110 ..... ..... ..... 0011 000 0000 @typea +fcmp_un 010110 ..... ..... ..... 0100 000 0000 @typea +fcmp_lt 010110 ..... ..... ..... 0100 001 0000 @typea +fcmp_eq 010110 ..... ..... ..... 0100 010 0000 @typea +fcmp_le 010110 ..... ..... ..... 0100 011 0000 @typea +fcmp_gt 010110 ..... ..... ..... 0100 100 0000 @typea +fcmp_ne 010110 ..... ..... ..... 0100 101 0000 @typea +fcmp_ge 010110 ..... ..... ..... 0100 110 0000 @typea + +# Note that flt and fint, unlike fsqrt, are documented as having the RB +# operand which is unused. So allow the field to be non-zero but discard +# the value and treat as 2-operand insns. +flt 010110 ..... ..... ----- 0101 000 0000 @typea0 +fint 010110 ..... ..... ----- 0110 000 0000 @typea0 +fsqrt 010110 ..... ..... 00000 0111 000 0000 @typea0 + idiv 010010 ..... ..... ..... 000 0000 0000 @typea idivu 010010 ..... ..... ..... 000 0000 0010 @typea |