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authorRichard Henderson <richard.henderson@linaro.org>2019-09-04 12:30:41 -0700
committerPeter Maydell <peter.maydell@linaro.org>2019-09-05 13:23:04 +0100
commitc4d3095bb62bdac0b4f9cb180bd7aa0b40c2c270 (patch)
treec9b387cd734a5ba310c2909ed8b1c5ac590ea4db /target/arm/t16.decode
parent6e8514ba408f3cc758cd47e2da5475d8684507ec (diff)
target/arm: Convert T16 add/sub (3 low, 2 low and imm)
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190904193059.26202-52-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/t16.decode')
-rw-r--r--target/arm/t16.decode16
1 files changed, 16 insertions, 0 deletions
diff --git a/target/arm/t16.decode b/target/arm/t16.decode
index a7a437f930..2b5f368d31 100644
--- a/target/arm/t16.decode
+++ b/target/arm/t16.decode
@@ -117,3 +117,19 @@ ADD_rri 10101 rd:3 ........ \
STM 11000 ... ........ @ldstm
LDM_t16 11001 ... ........ @ldstm
+
+# Add/subtract (three low registers)
+
+@addsub_3 ....... rm:3 rn:3 rd:3 \
+ &s_rrr_shi %s shim=0 shty=0
+
+ADD_rrri 0001100 ... ... ... @addsub_3
+SUB_rrri 0001101 ... ... ... @addsub_3
+
+# Add/subtract (two low registers and immediate)
+
+@addsub_2i ....... imm:3 rn:3 rd:3 \
+ &s_rri_rot %s rot=0
+
+ADD_rri 0001 110 ... ... ... @addsub_2i
+SUB_rri 0001 111 ... ... ... @addsub_2i