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target/hppa: Implement HAVG

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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-09-20 17:11:06 +02:00
parent 10c9e58d5c
commit 1b3cb7c874
4 changed files with 22 additions and 0 deletions
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1
target/hppa/helper.h
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@ -16,6 +16,7 @@ DEF_HELPER_FLAGS_1(ldc_check, TCG_CALL_NO_RWG, void, tl)
DEF_HELPER_FLAGS_2(hadd_ss, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(hadd_us, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(havg, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(hsub_ss, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(hsub_us, TCG_CALL_NO_RWG_SE, i64, i64, i64)

2
target/hppa/insns.decode
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@ -214,6 +214,8 @@ hadd 000010 ..... ..... 00000011 11 0 ..... @rrr
hadd_ss 000010 ..... ..... 00000011 01 0 ..... @rrr
hadd_us 000010 ..... ..... 00000011 00 0 ..... @rrr
havg 000010 ..... ..... 00000010 11 0 ..... @rrr
hsub 000010 ..... ..... 00000001 11 0 ..... @rrr
hsub_ss 000010 ..... ..... 00000001 01 0 ..... @rrr
hsub_us 000010 ..... ..... 00000001 00 0 ..... @rrr

14
target/hppa/op_helper.c
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@ -410,6 +410,20 @@ uint64_t HELPER(hadd_us)(uint64_t r1, uint64_t r2)
return ret;
}
uint64_t HELPER(havg)(uint64_t r1, uint64_t r2)
{
uint64_t ret = 0;
for (int i = 0; i < 64; i += 16) {
int f1 = extract64(r1, i, 16);
int f2 = extract64(r2, i, 16);
int fr = f1 + f2;
ret = deposit64(ret, i, 16, (fr >> 1) | (fr & 1));
}
return ret;
}
uint64_t HELPER(hsub_ss)(uint64_t r1, uint64_t r2)
{
uint64_t ret = 0;

5
target/hppa/translate.c
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@ -2804,6 +2804,11 @@ static bool trans_hadd_us(DisasContext *ctx, arg_rrr *a)
return do_multimedia(ctx, a, gen_helper_hadd_us);
}
static bool trans_havg(DisasContext *ctx, arg_rrr *a)
{
return do_multimedia(ctx, a, gen_helper_havg);
}
static bool trans_hsub(DisasContext *ctx, arg_rrr *a)
{
return do_multimedia(ctx, a, tcg_gen_vec_sub16_i64);