motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 15:23:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/microblaze: Convert dec_fpu to decodetree

Browse source 
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>
This commit is contained in:
Richard Henderson 2020-08-19 09:04:09 -07:00
parent e64b2e5cfe
commit d5aead3df4
2 changed files with 60 additions and 111 deletions
Download patch file Download diff file Expand all files Collapse all files

19
target/microblaze/insns.decode
View file

@ -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