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target/loongarch: Add LoongArch IOCSR instruction

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This includes:
- IOCSR{RD/WR}.{B/H/W/D}

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-27-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Xiaojuan Yang 2022-06-06 20:43:16 +08:00 • committed by Richard Henderson
parent 5b1dedfe84
commit f84a2aacf5
8 changed files with 197 additions and 0 deletions
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9
target/loongarch/insns.decode
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@ -450,3 +450,12 @@ bgeu 0110 11 ................ ..... ..... @rr_offs16
csrwr 0000 0100 .............. 00001 ..... @r_csr
csrxchg 0000 0100 .............. ..... ..... @rr_csr
}
iocsrrd_b 0000 01100100 10000 00000 ..... ..... @rr
iocsrrd_h 0000 01100100 10000 00001 ..... ..... @rr
iocsrrd_w 0000 01100100 10000 00010 ..... ..... @rr
iocsrrd_d 0000 01100100 10000 00011 ..... ..... @rr
iocsrwr_b 0000 01100100 10000 00100 ..... ..... @rr
iocsrwr_h 0000 01100100 10000 00101 ..... ..... @rr
iocsrwr_w 0000 01100100 10000 00110 ..... ..... @rr
iocsrwr_d 0000 01100100 10000 00111 ..... ..... @rr