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target-s390: Convert FP MULTIPLY

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-08-23 12:02:38 -07:00
parent f08a5c311d
commit 83b00736f3
4 changed files with 86 additions and 76 deletions
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87
target-s390x/fpu_helper.c
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@ -266,27 +266,50 @@ uint64_t HELPER(dxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
return RET128(ret);
}
/* 64-bit FP multiplication RR */
void HELPER(mdbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
/* 32-bit FP multiplication */
uint64_t HELPER(meeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
env->fregs[f1].d = float64_mul(env->fregs[f1].d, env->fregs[f2].d,
&env->fpu_status);
float32 ret = float32_mul(f1, f2, &env->fpu_status);
handle_exceptions(env, GETPC());
return ret;
}
/* 128-bit FP multiplication RR */
void HELPER(mxbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
/* 64-bit FP multiplication */
uint64_t HELPER(mdb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
CPU_QuadU v1;
CPU_QuadU v2;
CPU_QuadU res;
float64 ret = float64_mul(f1, f2, &env->fpu_status);
handle_exceptions(env, GETPC());
return ret;
}
v1.ll.upper = env->fregs[f1].ll;
v1.ll.lower = env->fregs[f1 + 2].ll;
v2.ll.upper = env->fregs[f2].ll;
v2.ll.lower = env->fregs[f2 + 2].ll;
res.q = float128_mul(v1.q, v2.q, &env->fpu_status);
env->fregs[f1].ll = res.ll.upper;
env->fregs[f1 + 2].ll = res.ll.lower;
/* 64/32-bit FP multiplication */
uint64_t HELPER(mdeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
float64 ret = float32_to_float64(f2, &env->fpu_status);
ret = float64_mul(f1, ret, &env->fpu_status);
handle_exceptions(env, GETPC());
return ret;
}
/* 128-bit FP multiplication */
uint64_t HELPER(mxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
uint64_t bh, uint64_t bl)
{
float128 ret = float128_mul(make_float128(ah, al),
make_float128(bh, bl),
&env->fpu_status);
handle_exceptions(env, GETPC());
return RET128(ret);
}
/* 128/64-bit FP multiplication */
uint64_t HELPER(mxdb)(CPUS390XState *env, uint64_t ah, uint64_t al,
uint64_t f2)
{
float128 ret = float64_to_float128(f2, &env->fpu_status);
ret = float128_mul(make_float128(ah, al), ret, &env->fpu_status);
handle_exceptions(env, GETPC());
return RET128(ret);
}
/* convert 32-bit float to 64-bit float */
@ -402,18 +425,6 @@ uint32_t HELPER(lcxbr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
return set_cc_nz_f128(x1.q);
}
/* 32-bit FP multiplication RM */
void HELPER(meeb)(CPUS390XState *env, uint32_t f1, uint32_t val)
{
float32 v1 = env->fregs[f1].l.upper;
CPU_FloatU v2;
v2.l = val;
HELPER_LOG("%s: multiplying 0x%d from f%d and 0x%d\n", __func__,
v1, f1, v2.f);
env->fregs[f1].l.upper = float32_mul(v1, v2.f, &env->fpu_status);
}
/* 32-bit FP compare */
uint32_t HELPER(ceb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
{
@ -441,18 +452,6 @@ uint32_t HELPER(cxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
return float_comp_to_cc(env, cmp);
}
/* 64-bit FP multiplication RM */
void HELPER(mdb)(CPUS390XState *env, uint32_t f1, uint64_t a2)
{
float64 v1 = env->fregs[f1].d;
CPU_DoubleU v2;
v2.ll = cpu_ldq_data(env, a2);
HELPER_LOG("%s: multiplying 0x%lx from f%d and 0x%ld\n", __func__,
v1, f1, v2.d);
env->fregs[f1].d = float64_mul(v1, v2.d, &env->fpu_status);
}
static void set_round_mode(CPUS390XState *env, int m3)
{
switch (m3) {
@ -582,14 +581,6 @@ void HELPER(lzxr)(CPUS390XState *env, uint32_t f1)
env->fregs[f1 + 1].ll = x.ll.lower;
}
/* 32-bit FP multiplication RR */
void HELPER(meebr)(CPUS390XState *env, uint32_t f1, uint32_t f2)
{
env->fregs[f1].l.upper = float32_mul(env->fregs[f1].l.upper,
env->fregs[f2].l.upper,
&env->fpu_status);
}
/* 64-bit FP multiply and add RM */
void HELPER(madb)(CPUS390XState *env, uint32_t f1, uint64_t a2, uint32_t f3)
{