From 86d21e4b509a2835ed79f234f476a4c5191d435b Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 4 Sep 2019 12:30:13 -0700 Subject: target/arm: Convert USAD8, USADA8, SBFX, UBFX, BFC, BFI, UDF In op_bfx, note that tcg_gen_{,s}extract_i32 already checks for width == 32, so we don't need to special case that here. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20190904193059.26202-24-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/a32.decode | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'target/arm/a32.decode') diff --git a/target/arm/a32.decode b/target/arm/a32.decode index c76cbad569..285c08ca22 100644 --- a/target/arm/a32.decode +++ b/target/arm/a32.decode @@ -41,6 +41,8 @@ &ldst_ri p w u rn rt imm &strex rn rd rt rt2 imm &ldrex rn rt rt2 imm +&bfx rd rn lsb widthm1 +&bfi rd rn lsb msb # Data-processing (register) @@ -390,3 +392,21 @@ LDAEXH .... 0001 1111 .... .... 1110 1001 1111 @ldrex LDA .... 0001 1001 .... .... 1100 1001 1111 @ldrex LDAB .... 0001 1101 .... .... 1100 1001 1111 @ldrex LDAH .... 0001 1111 .... .... 1100 1001 1111 @ldrex + +# Media instructions + +# usad8 is usada8 w/ ra=15 +USADA8 ---- 0111 1000 rd:4 ra:4 rm:4 0001 rn:4 + +# ubfx and sbfx +@bfx ---- .... ... widthm1:5 rd:4 lsb:5 ... rn:4 &bfx + +SBFX .... 0111 101 ..... .... ..... 101 .... @bfx +UBFX .... 0111 111 ..... .... ..... 101 .... @bfx + +# bfc is bfi w/ rn=15 +BFCI ---- 0111 110 msb:5 rd:4 lsb:5 001 rn:4 &bfi + +# While we could get UDEF by not including this, add the pattern for +# documentation and to conflict with any other typos in this file. +UDF 1110 0111 1111 ---- ---- ---- 1111 ---- -- cgit v1.2.3