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target/microblaze: Convert dec_sub to decodetree

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Use tcg_gen_add2_i32 for computing carry.
This removes the last use of helper_carry, so remove that.

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 2020-08-17 11:29:24 -07:00
parent 2080017965
commit a2b0b90e79
4 changed files with 65 additions and 75 deletions
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13
target/microblaze/insns.decode
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@ -40,3 +40,16 @@ addi 001000 ..... ..... ................ @typeb
addic 001010 ..... ..... ................ @typeb
addik 001100 ..... ..... ................ @typeb
addikc 001110 ..... ..... ................ @typeb
cmp 000101 ..... ..... ..... 000 0000 0001 @typea
cmpu 000101 ..... ..... ..... 000 0000 0011 @typea
rsub 000001 ..... ..... ..... 000 0000 0000 @typea
rsubc 000011 ..... ..... ..... 000 0000 0000 @typea
rsubk 000101 ..... ..... ..... 000 0000 0000 @typea
rsubkc 000111 ..... ..... ..... 000 0000 0000 @typea
rsubi 001001 ..... ..... ................ @typeb
rsubic 001011 ..... ..... ................ @typeb
rsubik 001101 ..... ..... ................ @typeb
rsubikc 001111 ..... ..... ................ @typeb