diff options
Diffstat (limited to 'target-s390x/fpu_helper.c')
| -rw-r--r-- | target-s390x/fpu_helper.c | 68 |
1 files changed, 20 insertions, 48 deletions
diff --git a/target-s390x/fpu_helper.c b/target-s390x/fpu_helper.c index ea61936571..b0c18ee7c2 100644 --- a/target-s390x/fpu_helper.c +++ b/target-s390x/fpu_helper.c @@ -239,28 +239,31 @@ uint64_t HELPER(sxb)(CPUS390XState *env, uint64_t ah, uint64_t al, return RET128(ret); } -/* 32-bit FP division RR */ -void HELPER(debr)(CPUS390XState *env, uint32_t f1, uint32_t f2) +/* 32-bit FP division */ +uint64_t HELPER(deb)(CPUS390XState *env, uint64_t f1, uint64_t f2) { - env->fregs[f1].l.upper = float32_div(env->fregs[f1].l.upper, - env->fregs[f2].l.upper, - &env->fpu_status); + float32 ret = float32_div(f1, f2, &env->fpu_status); + handle_exceptions(env, GETPC()); + return ret; } -/* 128-bit FP division RR */ -void HELPER(dxbr)(CPUS390XState *env, uint32_t f1, uint32_t f2) +/* 64-bit FP division */ +uint64_t HELPER(ddb)(CPUS390XState *env, uint64_t f1, uint64_t f2) { - CPU_QuadU v1; - CPU_QuadU v2; - CPU_QuadU res; + float64 ret = float64_div(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_div(v1.q, v2.q, &env->fpu_status); - env->fregs[f1].ll = res.ll.upper; - env->fregs[f1 + 2].ll = res.ll.lower; +/* 128-bit FP division */ +uint64_t HELPER(dxb)(CPUS390XState *env, uint64_t ah, uint64_t al, + uint64_t bh, uint64_t bl) +{ + float128 ret = float128_div(make_float128(ah, al), + make_float128(bh, bl), + &env->fpu_status); + handle_exceptions(env, GETPC()); + return RET128(ret); } /* 64-bit FP multiplication RR */ @@ -399,18 +402,6 @@ uint32_t HELPER(lcxbr)(CPUS390XState *env, uint32_t f1, uint32_t f2) return set_cc_nz_f128(x1.q); } -/* 32-bit FP division RM */ -void HELPER(deb)(CPUS390XState *env, uint32_t f1, uint32_t val) -{ - float32 v1 = env->fregs[f1].l.upper; - CPU_FloatU v2; - - v2.l = val; - HELPER_LOG("%s: dividing 0x%d from f%d by 0x%d\n", __func__, - v1, f1, v2.f); - env->fregs[f1].l.upper = float32_div(v1, v2.f, &env->fpu_status); -} - /* 32-bit FP multiplication RM */ void HELPER(meeb)(CPUS390XState *env, uint32_t f1, uint32_t val) { @@ -462,18 +453,6 @@ void HELPER(mdb)(CPUS390XState *env, uint32_t f1, uint64_t a2) env->fregs[f1].d = float64_mul(v1, v2.d, &env->fpu_status); } -/* 64-bit FP division RM */ -void HELPER(ddb)(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: dividing 0x%lx from f%d by 0x%ld\n", __func__, - v1, f1, v2.d); - env->fregs[f1].d = float64_div(v1, v2.d, &env->fpu_status); -} - static void set_round_mode(CPUS390XState *env, int m3) { switch (m3) { @@ -611,13 +590,6 @@ void HELPER(meebr)(CPUS390XState *env, uint32_t f1, uint32_t f2) &env->fpu_status); } -/* 64-bit FP division RR */ -void HELPER(ddbr)(CPUS390XState *env, uint32_t f1, uint32_t f2) -{ - env->fregs[f1].d = float64_div(env->fregs[f1].d, env->fregs[f2].d, - &env->fpu_status); -} - /* 64-bit FP multiply and add RM */ void HELPER(madb)(CPUS390XState *env, uint32_t f1, uint64_t a2, uint32_t f3) { |