diff options
| author | Alex Bennée <alex.bennee@linaro.org> | 2018-05-15 14:58:43 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-05-15 14:58:43 +0100 |
| commit | 6ba28ddb9be37bdb67e3e38007a53ccbdcd010df (patch) | |
| tree | 4cf1625a21cceb31ab887a15bc831313dc8ccbe0 /target/arm | |
| parent | ace97feef3613194900d4eb9ffc6819b840fbaeb (diff) | |
target/arm: Implement FMOV (immediate) for fp16
All the hard work is already done by vfp_expand_imm, we just need to
make sure we pick up the correct size.
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180512003217.9105-11-richard.henderson@linaro.org
[rth: Merge unallocated_encoding check with TCGMemOp conversion.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/translate-a64.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 9dacb583ae..35997969b4 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5674,11 +5674,25 @@ static void disas_fp_imm(DisasContext *s, uint32_t insn) { int rd = extract32(insn, 0, 5); int imm8 = extract32(insn, 13, 8); - int is_double = extract32(insn, 22, 2); + int type = extract32(insn, 22, 2); uint64_t imm; TCGv_i64 tcg_res; + TCGMemOp sz; - if (is_double > 1) { + switch (type) { + case 0: + sz = MO_32; + break; + case 1: + sz = MO_64; + break; + case 3: + sz = MO_16; + if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) { + break; + } + /* fallthru */ + default: unallocated_encoding(s); return; } @@ -5687,7 +5701,7 @@ static void disas_fp_imm(DisasContext *s, uint32_t insn) return; } - imm = vfp_expand_imm(MO_32 + is_double, imm8); + imm = vfp_expand_imm(sz, imm8); tcg_res = tcg_const_i64(imm); write_fp_dreg(s, rd, tcg_res); |