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target-mips: add MSA VEC/2R format instructions

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add MSA VEC/2R format instructions

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
This commit is contained in:
Yongbok Kim 2014-11-01 05:28:49 +00:00 • committed by Leon Alrae
parent 7d05b9c86f
commit cbe50b9a8e
3 changed files with 265 additions and 0 deletions
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140
target-mips/msa_helper.c
View file

@ -114,6 +114,34 @@ void helper_msa_shf_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
msa_move_v(pwd, pwx);
}
#define MSA_FN_VECTOR(FUNC, DEST, OPERATION) \
void helper_msa_ ## FUNC(CPUMIPSState *env, uint32_t wd, uint32_t ws, \
uint32_t wt) \
{ \
wr_t *pwd = &(env->active_fpu.fpr[wd].wr); \
wr_t *pws = &(env->active_fpu.fpr[ws].wr); \
wr_t *pwt = &(env->active_fpu.fpr[wt].wr); \
uint32_t i; \
for (i = 0; i < DF_ELEMENTS(DF_DOUBLE); i++) { \
DEST = OPERATION; \
} \
}
MSA_FN_VECTOR(and_v, pwd->d[i], pws->d[i] & pwt->d[i])
MSA_FN_VECTOR(or_v, pwd->d[i], pws->d[i] | pwt->d[i])
MSA_FN_VECTOR(nor_v, pwd->d[i], ~(pws->d[i] | pwt->d[i]))
MSA_FN_VECTOR(xor_v, pwd->d[i], pws->d[i] ^ pwt->d[i])
MSA_FN_VECTOR(bmnz_v, pwd->d[i],
BIT_MOVE_IF_NOT_ZERO(pwd->d[i], pws->d[i], pwt->d[i], DF_DOUBLE))
MSA_FN_VECTOR(bmz_v, pwd->d[i],
BIT_MOVE_IF_ZERO(pwd->d[i], pws->d[i], pwt->d[i], DF_DOUBLE))
MSA_FN_VECTOR(bsel_v, pwd->d[i],
BIT_SELECT(pwd->d[i], pws->d[i], pwt->d[i], DF_DOUBLE))
#undef BIT_MOVE_IF_NOT_ZERO
#undef BIT_MOVE_IF_ZERO
#undef BIT_SELECT
#undef MSA_FN_VECTOR
static inline int64_t msa_addv_df(uint32_t df, int64_t arg1, int64_t arg2)
{
return arg1 + arg2;
@ -1359,6 +1387,118 @@ void helper_msa_move_v(CPUMIPSState *env, uint32_t wd, uint32_t ws)
msa_move_v(pwd, pws);
}
static inline int64_t msa_pcnt_df(uint32_t df, int64_t arg)
{
uint64_t x;
x = UNSIGNED(arg, df);
x = (x & 0x5555555555555555ULL) + ((x >> 1) & 0x5555555555555555ULL);
x = (x & 0x3333333333333333ULL) + ((x >> 2) & 0x3333333333333333ULL);
x = (x & 0x0F0F0F0F0F0F0F0FULL) + ((x >> 4) & 0x0F0F0F0F0F0F0F0FULL);
x = (x & 0x00FF00FF00FF00FFULL) + ((x >> 8) & 0x00FF00FF00FF00FFULL);
x = (x & 0x0000FFFF0000FFFFULL) + ((x >> 16) & 0x0000FFFF0000FFFFULL);
x = (x & 0x00000000FFFFFFFFULL) + ((x >> 32));
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)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
uint32_t i;
switch (df) {
case DF_BYTE:
for (i = 0; i < DF_ELEMENTS(DF_BYTE); i++) {
pwd->b[i] = (int8_t)env->active_tc.gpr[rs];
}
break;
case DF_HALF:
for (i = 0; i < DF_ELEMENTS(DF_HALF); i++) {
pwd->h[i] = (int16_t)env->active_tc.gpr[rs];
}
break;
case DF_WORD:
for (i = 0; i < DF_ELEMENTS(DF_WORD); i++) {
pwd->w[i] = (int32_t)env->active_tc.gpr[rs];
}
break;
case DF_DOUBLE:
for (i = 0; i < DF_ELEMENTS(DF_DOUBLE); i++) {
pwd->d[i] = (int64_t)env->active_tc.gpr[rs];
}
break;
default:
assert(0);
}
}
#define MSA_UNOP_DF(func) \
void helper_msa_ ## func ## _df(CPUMIPSState *env, uint32_t df, \
uint32_t wd, uint32_t ws) \
{ \
wr_t *pwd = &(env->active_fpu.fpr[wd].wr); \
wr_t *pws = &(env->active_fpu.fpr[ws].wr); \
uint32_t i; \
\
switch (df) { \
case DF_BYTE: \
for (i = 0; i < DF_ELEMENTS(DF_BYTE); i++) { \
pwd->b[i] = msa_ ## func ## _df(df, pws->b[i]); \
} \
break; \
case DF_HALF: \
for (i = 0; i < DF_ELEMENTS(DF_HALF); i++) { \
pwd->h[i] = msa_ ## func ## _df(df, pws->h[i]); \
} \
break; \
case DF_WORD: \
for (i = 0; i < DF_ELEMENTS(DF_WORD); i++) { \
pwd->w[i] = msa_ ## func ## _df(df, pws->w[i]); \
} \
break; \
case DF_DOUBLE: \
for (i = 0; i < DF_ELEMENTS(DF_DOUBLE); i++) { \
pwd->d[i] = msa_ ## func ## _df(df, pws->d[i]); \
} \
break; \
default: \
assert(0); \
} \
}
MSA_UNOP_DF(nlzc)
MSA_UNOP_DF(nloc)
MSA_UNOP_DF(pcnt)
#define FLOAT_ONE32 make_float32(0x3f8 << 20)
#define FLOAT_ONE64 make_float64(0x3ffULL << 52)