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target/arm: Convert T32 ADDW/SUBW

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-09-04 12:30:09 -07:00 • committed by Peter Maydell
parent 2cde9ea57d
commit 145952e87f
3 changed files with 33 additions and 11 deletions
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19
target/arm/t32.decode
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@ -27,6 +27,7 @@
&rrrr !extern rd rn rm ra
&rrr !extern rd rn rm
&rr !extern rd rm
&ri !extern rd imm
&r !extern rm
&i !extern imm
&msr_reg !extern rn r mask
@ -121,6 +122,24 @@ SBC_rri 1111 0.0 1011 . .... 0 ... .... ........ @s_rri_rot
}
RSB_rri 1111 0.0 1110 . .... 0 ... .... ........ @s_rri_rot
# Data processing (plain binary immediate)
%imm12_26_12_0 26:1 12:3 0:8
%neg12_26_12_0 26:1 12:3 0:8 !function=negate
@s0_rri_12 .... ... .... . rn:4 . ... rd:4 ........ \
&s_rri_rot imm=%imm12_26_12_0 rot=0 s=0
{
ADR 1111 0.1 0000 0 1111 0 ... rd:4 ........ \
&ri imm=%imm12_26_12_0
ADD_rri 1111 0.1 0000 0 .... 0 ... .... ........ @s0_rri_12
}
{
ADR 1111 0.1 0101 0 1111 0 ... rd:4 ........ \
&ri imm=%neg12_26_12_0
SUB_rri 1111 0.1 0101 0 .... 0 ... .... ........ @s0_rri_12
}
# Multiply and multiply accumulate
@s0_rnadm .... .... .... rn:4 ra:4 rd:4 .... rm:4 &s_rrrr s=0