diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2019-09-26 19:57:58 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-10-04 19:08:21 +1000 |
| commit | 474c2e931d51bad00c20c65d6fe478a9391e5e2a (patch) | |
| tree | 62829844b9211d946369d658eb6593456e9fb889 /target | |
| parent | d9acba3130314e2e4239d39a99eeca147c255584 (diff) | |
target/ppc: introduce dfp_finalize_decimal{64,128}() helper functions
Most of the DFP helper functions call decimal{64,128}FromNumber() just before
returning in order to convert the decNumber stored in dfp.t64 back to a
Decimal{64,128} to write back to the FP registers.
Introduce new dfp_finalize_decimal{64,128}() helper functions which both enable
the parameter list to be reduced considerably, and also help minimise the
changes required in the next patch.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190926185801.11176-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/dfp_helper.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c index ab5e91d8ed..8e1ea2971a 100644 --- a/target/ppc/dfp_helper.c +++ b/target/ppc/dfp_helper.c @@ -191,6 +191,16 @@ static void dfp_prepare_decimal128(struct PPC_DFP *dfp, ppc_fprp_t *a, } } +static void dfp_finalize_decimal64(struct PPC_DFP *dfp) +{ + decimal64FromNumber((decimal64 *)&dfp->t64, &dfp->t, &dfp->context); +} + +static void dfp_finalize_decimal128(struct PPC_DFP *dfp) +{ + decimal128FromNumber((decimal128 *)&dfp->t64, &dfp->t, &dfp->context); +} + static void dfp_set_FPSCR_flag(struct PPC_DFP *dfp, uint64_t flag, uint64_t enabled) { @@ -422,7 +432,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \ struct PPC_DFP dfp; \ dfp_prepare_decimal##size(&dfp, a, b, env); \ dnop(&dfp.t, &dfp.a, &dfp.b, &dfp.context); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ postprocs(&dfp); \ if (size == 64) { \ set_dfp64(t, dfp.t64); \ @@ -491,7 +501,7 @@ uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, ppc_fprp_t *b) \ struct PPC_DFP dfp; \ dfp_prepare_decimal##size(&dfp, a, b, env); \ dnop(&dfp.t, &dfp.a, &dfp.b, &dfp.context); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ postprocs(&dfp); \ return dfp.crbf; \ } @@ -741,8 +751,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \ dfp.a.exponent = (int32_t)((int8_t)(te << 3) >> 3); \ \ dfp_quantize(rmc, &dfp); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ QUA_PPs(&dfp); \ \ if (size == 64) { \ @@ -764,8 +773,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \ dfp_prepare_decimal##size(&dfp, a, b, env); \ \ dfp_quantize(rmc, &dfp); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ QUA_PPs(&dfp); \ \ if (size == 64) { \ @@ -847,8 +855,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \ ref_sig = a64 & 0x3f; \ \ _dfp_reround(rmc, ref_sig, xmax, &dfp); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ QUA_PPs(&dfp); \ \ if (size == 64) { \ @@ -871,7 +878,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \ \ dfp_set_round_mode_from_immediate(r, rmc, &dfp); \ decNumberToIntegralExact(&dfp.t, &dfp.b, &dfp.context); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ postprocs(&dfp); \ \ if (size == 64) { \ @@ -911,7 +918,7 @@ void helper_dctdp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) dfp_prepare_decimal64(&dfp, 0, 0, env); decimal32ToNumber((decimal32 *)&b_short, &dfp.t); - decimal64FromNumber((decimal64 *)&dfp.t64, &dfp.t, &dfp.context); + dfp_finalize_decimal64(&dfp); set_dfp64(t, dfp.t64); dfp_set_FPRF_from_FRT(&dfp); } @@ -927,7 +934,7 @@ void helper_dctqpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) dfp_check_for_VXSNAN_and_convert_to_QNaN(&dfp); dfp_set_FPRF_from_FRT(&dfp); - decimal128FromNumber((decimal128 *)&dfp.t64, &dfp.t, &dfp.context); + dfp_finalize_decimal128(&dfp); set_dfp128(t, dfp.t64); } @@ -963,7 +970,7 @@ void helper_drdpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) dfp_check_for_XX(&dfp); dfp.t64[0] = dfp.t64[1] = 0; - decimal64FromNumber((decimal64 *)dfp.t64, &dfp.t, &dfp.context); + dfp_finalize_decimal64(&dfp); set_dfp128(t, dfp.t64); } @@ -975,7 +982,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \ dfp_prepare_decimal##size(&dfp, 0, b, env); \ get_dfp64(&b64, b); \ decNumberFromInt64(&dfp.t, (int64_t)b64); \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ CFFIX_PPs(&dfp); \ \ if (size == 64) { \ @@ -1155,8 +1162,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \ if (s && sgn) { \ dfp.t.bits |= DECNEG; \ } \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ dfp_set_FPRF_from_FRT(&dfp); \ if ((size) == 64) { \ set_dfp64(t, dfp.t64); \ @@ -1259,8 +1265,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \ dfp.t.bits &= ~DECSPECIAL; \ } \ dfp.t.exponent = exp - bias; \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ } \ if (size == 64) { \ set_dfp64(t, dfp.t64); \ @@ -1340,8 +1345,7 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \ dfp.t.digits = max_digits - 1; \ } \ \ - decimal##size##FromNumber((decimal##size *)dfp.t64, &dfp.t, \ - &dfp.context); \ + dfp_finalize_decimal##size(&dfp); \ } else { \ if ((size) == 64) { \ dfp.t64[0] = dfp.a64[0] & 0xFFFC000000000000ULL; \ |