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target/arm: Convert multiply and multiply accumulate

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-09-04 12:29:56 -07:00 • committed by Peter Maydell
parent 581c6ebd17
commit bd92fe353b
3 changed files with 177 additions and 107 deletions
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19
target/arm/t32.decode
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@ -22,6 +22,8 @@
&s_rrr_shi !extern s rd rn rm shim shty
&s_rrr_shr !extern s rn rd rm rs shty
&s_rri_rot !extern s rn rd imm rot
&s_rrrr !extern s rd rn rm ra
&rrrr !extern rd rn rm ra
# Data-processing (register)
@ -109,3 +111,20 @@ SBC_rri 1111 0.0 1011 . .... 0 ... .... ........ @s_rri_rot
SUB_rri 1111 0.0 1101 . .... 0 ... .... ........ @s_rri_rot
}
RSB_rri 1111 0.0 1110 . .... 0 ... .... ........ @s_rri_rot
# Multiply and multiply accumulate
@s0_rnadm .... .... .... rn:4 ra:4 rd:4 .... rm:4 &s_rrrr s=0
@s0_rn0dm .... .... .... rn:4 .... rd:4 .... rm:4 &s_rrrr ra=0 s=0
@rnadm .... .... .... rn:4 ra:4 rd:4 .... rm:4 &rrrr
{
MUL 1111 1011 0000 .... 1111 .... 0000 .... @s0_rn0dm
MLA 1111 1011 0000 .... .... .... 0000 .... @s0_rnadm
}
MLS 1111 1011 0000 .... .... .... 0001 .... @rnadm
SMULL 1111 1011 1000 .... .... .... 0000 .... @s0_rnadm
UMULL 1111 1011 1010 .... .... .... 0000 .... @s0_rnadm
SMLAL 1111 1011 1100 .... .... .... 0000 .... @s0_rnadm
UMLAL 1111 1011 1110 .... .... .... 0000 .... @s0_rnadm
UMAAL 1111 1011 1110 .... .... .... 0110 .... @rnadm