diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2019-06-11 16:39:53 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-06-13 15:14:06 +0100 |
| commit | e3d6f4290c788e850c64815f0b3e331600a4bcc0 (patch) | |
| tree | 9582ce565283c96ee6effbcadbee8405d25037d5 /target/arm/vfp.decode | |
| parent | 92073e947487e2109f3dfebfeaa48d6323cbd981 (diff) | |
target/arm: Convert VCVT fp/fixed-point conversion insns to decodetree
Convert the VCVT (between floating-point and fixed-point) instructions
to decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/arm/vfp.decode')
| -rw-r--r-- | target/arm/vfp.decode | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target/arm/vfp.decode b/target/arm/vfp.decode index 1a7c9b533d..c3223a124a 100644 --- a/target/arm/vfp.decode +++ b/target/arm/vfp.decode @@ -224,3 +224,13 @@ VCVT_int_dp ---- 1110 1.11 1000 .... 1011 s:1 1.0 .... \ # VJCVT is always dp to sp VJCVT ---- 1110 1.11 1001 .... 1011 11.0 .... \ vd=%vd_sp vm=%vm_dp + +# VCVT between floating-point and fixed-point. The immediate value +# is in the same format as a Vm single-precision register number. +# We assemble bits 18 (op), 16 (u) and 7 (sx) into a single opc field +# for the convenience of the trans_VCVT_fix functions. +%vcvt_fix_op 18:1 16:1 7:1 +VCVT_fix_sp ---- 1110 1.11 1.1. .... 1010 .1.0 .... \ + vd=%vd_sp imm=%vm_sp opc=%vcvt_fix_op +VCVT_fix_dp ---- 1110 1.11 1.1. .... 1011 .1.0 .... \ + vd=%vd_dp imm=%vm_sp opc=%vcvt_fix_op |