diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-12-17 17:57:16 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2021-12-17 17:57:16 +0100 |
| commit | d9e792a1c17020ea87f281b83d4d79a1fda3856f (patch) | |
| tree | a4e3f9c660e20bf95914a0646c772fc87b968098 /target/ppc/translate | |
| parent | 41ae890d08b2254da02c2b422a85cbb9d38843df (diff) | |
target/ppc: Add helpers for fadds, fsubs, fdivs
Use float64r32_{add,sub,div}. Fixes a double-rounding issue with
performing the compuation in float64 and then rounding afterward.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-31-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'target/ppc/translate')
| -rw-r--r-- | target/ppc/translate/fp-impl.c.inc | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/target/ppc/translate/fp-impl.c.inc b/target/ppc/translate/fp-impl.c.inc index baa31d3431..b84097544f 100644 --- a/target/ppc/translate/fp-impl.c.inc +++ b/target/ppc/translate/fp-impl.c.inc @@ -68,7 +68,7 @@ static void gen_f##name(DisasContext *ctx) \ _GEN_FLOAT_ACB(name, 0x3F, op2, set_fprf, type); \ _GEN_FLOAT_ACB(name##s, 0x3B, op2, set_fprf, type); -#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat, set_fprf, type) \ +#define _GEN_FLOAT_AB(name, op1, op2, inval, set_fprf, type) \ static void gen_f##name(DisasContext *ctx) \ { \ TCGv_i64 t0; \ @@ -84,10 +84,7 @@ static void gen_f##name(DisasContext *ctx) \ gen_reset_fpstatus(); \ get_fpr(t0, rA(ctx->opcode)); \ get_fpr(t1, rB(ctx->opcode)); \ - gen_helper_f##op(t2, cpu_env, t0, t1); \ - if (isfloat) { \ - gen_helper_frsp(t2, cpu_env, t2); \ - } \ + gen_helper_f##name(t2, cpu_env, t0, t1); \ set_fpr(rD(ctx->opcode), t2); \ if (set_fprf) { \ gen_compute_fprf_float64(t2); \ @@ -100,8 +97,8 @@ static void gen_f##name(DisasContext *ctx) \ tcg_temp_free_i64(t2); \ } #define GEN_FLOAT_AB(name, op2, inval, set_fprf, type) \ -_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0, set_fprf, type); \ -_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1, set_fprf, type); +_GEN_FLOAT_AB(name, 0x3F, op2, inval, set_fprf, type); \ +_GEN_FLOAT_AB(name##s, 0x3B, op2, inval, set_fprf, type); #define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat, set_fprf, type) \ static void gen_f##name(DisasContext *ctx) \ |