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| author | Peter Maydell <peter.maydell@linaro.org> | 2019-06-11 16:39:50 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-06-13 15:14:05 +0100 |
| commit | 1882651afdb0ca44f0631192fbe65a71c660d809 (patch) | |
| tree | d4b29e9eae559427ac695025281baa09d19858dc /target/arm | |
| parent | 90287e22c987e9840704345ed33d237cbe759dd9 (diff) | |
| download | qemu-1882651afdb0ca44f0631192fbe65a71c660d809.zip qemu-1882651afdb0ca44f0631192fbe65a71c660d809.tar.gz qemu-1882651afdb0ca44f0631192fbe65a71c660d809.tar.bz2 | |
target/arm: Convert VNEG to decodetree
Convert the VNEG instruction to decodetree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/translate-vfp.inc.c | 10 | ||||
| -rw-r--r-- | target/arm/translate.c | 6 | ||||
| -rw-r--r-- | target/arm/vfp.decode | 5 |
3 files changed, 16 insertions, 5 deletions
diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index d0282f1..6e06b2a 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -1898,3 +1898,13 @@ static bool trans_VABS_dp(DisasContext *s, arg_VABS_dp *a) { return do_vfp_2op_dp(s, gen_helper_vfp_absd, a->vd, a->vm); } + +static bool trans_VNEG_sp(DisasContext *s, arg_VNEG_sp *a) +{ + return do_vfp_2op_sp(s, gen_helper_vfp_negs, a->vd, a->vm); +} + +static bool trans_VNEG_dp(DisasContext *s, arg_VNEG_dp *a) +{ + return do_vfp_2op_dp(s, gen_helper_vfp_negd, a->vd, a->vm); +} diff --git a/target/arm/translate.c b/target/arm/translate.c index e510c5e..bb2282d 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -3098,7 +3098,7 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn) return 1; case 15: switch (rn) { - case 1: + case 1 ... 2: /* Already handled by decodetree */ return 1; default: @@ -3112,7 +3112,6 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn) /* rn is opcode, encoded as per VFP_SREG_N. */ switch (rn) { case 0x00: /* vmov */ - case 0x02: /* vneg */ case 0x03: /* vsqrt */ break; @@ -3291,9 +3290,6 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn) case 0: /* cpy */ /* no-op */ break; - case 2: /* neg */ - gen_vfp_neg(dp); - break; case 3: /* sqrt */ gen_vfp_sqrt(dp); break; diff --git a/target/arm/vfp.decode b/target/arm/vfp.decode index 7035861..79e4196 100644 --- a/target/arm/vfp.decode +++ b/target/arm/vfp.decode @@ -161,3 +161,8 @@ VABS_sp ---- 1110 1.11 0000 .... 1010 11.0 .... \ vd=%vd_sp vm=%vm_sp VABS_dp ---- 1110 1.11 0000 .... 1011 11.0 .... \ vd=%vd_dp vm=%vm_dp + +VNEG_sp ---- 1110 1.11 0001 .... 1010 01.0 .... \ + vd=%vd_sp vm=%vm_sp +VNEG_dp ---- 1110 1.11 0001 .... 1011 01.0 .... \ + vd=%vd_dp vm=%vm_dp |