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author | Aleksandar Markovic | 2019-09-25 14:45:59 +0200 |
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committer | Aleksandar Markovic | 2019-10-01 16:58:44 +0200 |
commit | 81c4b05995bcbeeaf7f7f4183b118a098f268d22 (patch) | |
tree | f7f54b853263356a744a36d47fe97c21806412ab /target/mips/msa_helper.c | |
parent | target/mips: Clean up translate.c (diff) | |
download | qemu-81c4b05995bcbeeaf7f7f4183b118a098f268d22.tar.gz qemu-81c4b05995bcbeeaf7f7f4183b118a098f268d22.tar.xz qemu-81c4b05995bcbeeaf7f7f4183b118a098f268d22.zip |
target/mips: msa: Split helpers for <NLOC|NLZC>.<B|H|W|D>
Achieves clearer code and slightly better performance.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Message-Id: <1569415572-19635-8-git-send-email-aleksandar.markovic@rt-rk.com>
Diffstat (limited to 'target/mips/msa_helper.c')
-rw-r--r-- | target/mips/msa_helper.c | 170 |
1 files changed, 141 insertions, 29 deletions
diff --git a/target/mips/msa_helper.c b/target/mips/msa_helper.c index f24061e2af..8c27c1b5bd 100644 --- a/target/mips/msa_helper.c +++ b/target/mips/msa_helper.c @@ -65,7 +65,147 @@ * +---------------+----------------------------------------------------------+ */ -/* TODO: insert Bit Count group helpers here */ +static inline int64_t msa_nlzc_df(uint32_t df, int64_t arg) +{ + uint64_t x, y; + int n, c; + + x = UNSIGNED(arg, df); + n = DF_BITS(df); + c = DF_BITS(df) / 2; + + do { + y = x >> c; + if (y != 0) { + n = n - c; + x = y; + } + c = c >> 1; + } while (c != 0); + + return n - x; +} + +static inline int64_t msa_nloc_df(uint32_t df, int64_t arg) +{ + return msa_nlzc_df(df, UNSIGNED((~arg), df)); +} + +void helper_msa_nloc_b(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->b[0] = msa_nloc_df(DF_BYTE, pws->b[0]); + pwd->b[1] = msa_nloc_df(DF_BYTE, pws->b[1]); + pwd->b[2] = msa_nloc_df(DF_BYTE, pws->b[2]); + pwd->b[3] = msa_nloc_df(DF_BYTE, pws->b[3]); + pwd->b[4] = msa_nloc_df(DF_BYTE, pws->b[4]); + pwd->b[5] = msa_nloc_df(DF_BYTE, pws->b[5]); + pwd->b[6] = msa_nloc_df(DF_BYTE, pws->b[6]); + pwd->b[7] = msa_nloc_df(DF_BYTE, pws->b[7]); + pwd->b[8] = msa_nloc_df(DF_BYTE, pws->b[8]); + pwd->b[9] = msa_nloc_df(DF_BYTE, pws->b[9]); + pwd->b[10] = msa_nloc_df(DF_BYTE, pws->b[10]); + pwd->b[11] = msa_nloc_df(DF_BYTE, pws->b[11]); + pwd->b[12] = msa_nloc_df(DF_BYTE, pws->b[12]); + pwd->b[13] = msa_nloc_df(DF_BYTE, pws->b[13]); + pwd->b[14] = msa_nloc_df(DF_BYTE, pws->b[14]); + pwd->b[15] = msa_nloc_df(DF_BYTE, pws->b[15]); +} + +void helper_msa_nloc_h(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->h[0] = msa_nloc_df(DF_HALF, pws->h[0]); + pwd->h[1] = msa_nloc_df(DF_HALF, pws->h[1]); + pwd->h[2] = msa_nloc_df(DF_HALF, pws->h[2]); + pwd->h[3] = msa_nloc_df(DF_HALF, pws->h[3]); + pwd->h[4] = msa_nloc_df(DF_HALF, pws->h[4]); + pwd->h[5] = msa_nloc_df(DF_HALF, pws->h[5]); + pwd->h[6] = msa_nloc_df(DF_HALF, pws->h[6]); + pwd->h[7] = msa_nloc_df(DF_HALF, pws->h[7]); +} + +void helper_msa_nloc_w(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->w[0] = msa_nloc_df(DF_WORD, pws->w[0]); + pwd->w[1] = msa_nloc_df(DF_WORD, pws->w[1]); + pwd->w[2] = msa_nloc_df(DF_WORD, pws->w[2]); + pwd->w[3] = msa_nloc_df(DF_WORD, pws->w[3]); +} + +void helper_msa_nloc_d(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->d[0] = msa_nloc_df(DF_DOUBLE, pws->d[0]); + pwd->d[1] = msa_nloc_df(DF_DOUBLE, pws->d[1]); +} + +void helper_msa_nlzc_b(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->b[0] = msa_nlzc_df(DF_BYTE, pws->b[0]); + pwd->b[1] = msa_nlzc_df(DF_BYTE, pws->b[1]); + pwd->b[2] = msa_nlzc_df(DF_BYTE, pws->b[2]); + pwd->b[3] = msa_nlzc_df(DF_BYTE, pws->b[3]); + pwd->b[4] = msa_nlzc_df(DF_BYTE, pws->b[4]); + pwd->b[5] = msa_nlzc_df(DF_BYTE, pws->b[5]); + pwd->b[6] = msa_nlzc_df(DF_BYTE, pws->b[6]); + pwd->b[7] = msa_nlzc_df(DF_BYTE, pws->b[7]); + pwd->b[8] = msa_nlzc_df(DF_BYTE, pws->b[8]); + pwd->b[9] = msa_nlzc_df(DF_BYTE, pws->b[9]); + pwd->b[10] = msa_nlzc_df(DF_BYTE, pws->b[10]); + pwd->b[11] = msa_nlzc_df(DF_BYTE, pws->b[11]); + pwd->b[12] = msa_nlzc_df(DF_BYTE, pws->b[12]); + pwd->b[13] = msa_nlzc_df(DF_BYTE, pws->b[13]); + pwd->b[14] = msa_nlzc_df(DF_BYTE, pws->b[14]); + pwd->b[15] = msa_nlzc_df(DF_BYTE, pws->b[15]); +} + +void helper_msa_nlzc_h(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->h[0] = msa_nlzc_df(DF_HALF, pws->h[0]); + pwd->h[1] = msa_nlzc_df(DF_HALF, pws->h[1]); + pwd->h[2] = msa_nlzc_df(DF_HALF, pws->h[2]); + pwd->h[3] = msa_nlzc_df(DF_HALF, pws->h[3]); + pwd->h[4] = msa_nlzc_df(DF_HALF, pws->h[4]); + pwd->h[5] = msa_nlzc_df(DF_HALF, pws->h[5]); + pwd->h[6] = msa_nlzc_df(DF_HALF, pws->h[6]); + pwd->h[7] = msa_nlzc_df(DF_HALF, pws->h[7]); +} + +void helper_msa_nlzc_w(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->w[0] = msa_nlzc_df(DF_WORD, pws->w[0]); + pwd->w[1] = msa_nlzc_df(DF_WORD, pws->w[1]); + pwd->w[2] = msa_nlzc_df(DF_WORD, pws->w[2]); + pwd->w[3] = msa_nlzc_df(DF_WORD, pws->w[3]); +} + +void helper_msa_nlzc_d(CPUMIPSState *env, uint32_t wd, uint32_t ws) +{ + wr_t *pwd = &(env->active_fpu.fpr[wd].wr); + wr_t *pws = &(env->active_fpu.fpr[ws].wr); + + pwd->d[0] = msa_nlzc_df(DF_DOUBLE, pws->d[0]); + pwd->d[1] = msa_nlzc_df(DF_DOUBLE, pws->d[1]); +} /* @@ -2524,32 +2664,6 @@ static inline int64_t msa_pcnt_df(uint32_t df, int64_t arg) return x; } -static inline int64_t msa_nlzc_df(uint32_t df, int64_t arg) -{ - uint64_t x, y; - int n, c; - - x = UNSIGNED(arg, df); - n = DF_BITS(df); - c = DF_BITS(df) / 2; - - do { - y = x >> c; - if (y != 0) { - n = n - c; - x = y; - } - c = c >> 1; - } while (c != 0); - - return n - x; -} - -static inline int64_t msa_nloc_df(uint32_t df, int64_t arg) -{ - return msa_nlzc_df(df, UNSIGNED((~arg), df)); -} - void helper_msa_fill_df(CPUMIPSState *env, uint32_t df, uint32_t wd, uint32_t rs) { @@ -2633,8 +2747,6 @@ void helper_msa_ ## func ## _df(CPUMIPSState *env, uint32_t df, \ } \ } -MSA_UNOP_DF(nlzc) -MSA_UNOP_DF(nloc) MSA_UNOP_DF(pcnt) #undef MSA_UNOP_DF |