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Diffstat (limited to 'target/ppc/dfp_helper.c')
-rw-r--r--target/ppc/dfp_helper.c210
1 files changed, 108 insertions, 102 deletions
diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c
index 8e1ea2971a..b72084d50a 100644
--- a/target/ppc/dfp_helper.c
+++ b/target/ppc/dfp_helper.c
@@ -36,31 +36,31 @@
#define LO_IDX 0
#endif
-static void get_dfp64(uint64_t *dst, ppc_fprp_t *dfp)
+static void get_dfp64(ppc_vsr_t *dst, ppc_fprp_t *dfp)
{
- dst[0] = dfp->VsrD(0);
+ dst->VsrD(1) = dfp->VsrD(0);
}
-static void get_dfp128(uint64_t *dst, ppc_fprp_t *dfp)
+static void get_dfp128(ppc_vsr_t *dst, ppc_fprp_t *dfp)
{
- dst[HI_IDX] = dfp[0].VsrD(0);
- dst[LO_IDX] = dfp[1].VsrD(0);
+ dst->VsrD(0) = dfp[0].VsrD(0);
+ dst->VsrD(1) = dfp[1].VsrD(0);
}
-static void set_dfp64(ppc_fprp_t *dfp, uint64_t *src)
+static void set_dfp64(ppc_fprp_t *dfp, ppc_vsr_t *src)
{
- dfp->VsrD(0) = src[0];
+ dfp->VsrD(0) = src->VsrD(1);
}
-static void set_dfp128(ppc_fprp_t *dfp, uint64_t *src)
+static void set_dfp128(ppc_fprp_t *dfp, ppc_vsr_t *src)
{
- dfp[0].VsrD(0) = src[HI_IDX];
- dfp[1].VsrD(0) = src[LO_IDX];
+ dfp[0].VsrD(0) = src->VsrD(0);
+ dfp[1].VsrD(0) = src->VsrD(1);
}
struct PPC_DFP {
CPUPPCState *env;
- uint64_t t64[2], a64[2], b64[2];
+ ppc_vsr_t vt, va, vb;
decNumber t, a, b;
decContext context;
uint8_t crbf;
@@ -151,18 +151,18 @@ static void dfp_prepare_decimal64(struct PPC_DFP *dfp, ppc_fprp_t *a,
dfp->env = env;
if (a) {
- get_dfp64(dfp->a64, a);
- decimal64ToNumber((decimal64 *)dfp->a64, &dfp->a);
+ get_dfp64(&dfp->va, a);
+ decimal64ToNumber((decimal64 *)&dfp->va.VsrD(1), &dfp->a);
} else {
- dfp->a64[0] = 0;
+ dfp->va.VsrD(1) = 0;
decNumberZero(&dfp->a);
}
if (b) {
- get_dfp64(dfp->b64, b);
- decimal64ToNumber((decimal64 *)dfp->b64, &dfp->b);
+ get_dfp64(&dfp->vb, b);
+ decimal64ToNumber((decimal64 *)&dfp->vb.VsrD(1), &dfp->b);
} else {
- dfp->b64[0] = 0;
+ dfp->vb.VsrD(1) = 0;
decNumberZero(&dfp->b);
}
}
@@ -175,30 +175,30 @@ static void dfp_prepare_decimal128(struct PPC_DFP *dfp, ppc_fprp_t *a,
dfp->env = env;
if (a) {
- get_dfp128(dfp->a64, a);
- decimal128ToNumber((decimal128 *)dfp->a64, &dfp->a);
+ get_dfp128(&dfp->va, a);
+ decimal128ToNumber((decimal128 *)&dfp->va, &dfp->a);
} else {
- dfp->a64[0] = dfp->a64[1] = 0;
+ dfp->va.VsrD(0) = dfp->va.VsrD(1) = 0;
decNumberZero(&dfp->a);
}
if (b) {
- get_dfp128(dfp->b64, b);
- decimal128ToNumber((decimal128 *)dfp->b64, &dfp->b);
+ get_dfp128(&dfp->vb, b);
+ decimal128ToNumber((decimal128 *)&dfp->vb, &dfp->b);
} else {
- dfp->b64[0] = dfp->b64[1] = 0;
+ dfp->vb.VsrD(0) = dfp->vb.VsrD(1) = 0;
decNumberZero(&dfp->b);
}
}
static void dfp_finalize_decimal64(struct PPC_DFP *dfp)
{
- decimal64FromNumber((decimal64 *)&dfp->t64, &dfp->t, &dfp->context);
+ decimal64FromNumber((decimal64 *)&dfp->vt.VsrD(1), &dfp->t, &dfp->context);
}
static void dfp_finalize_decimal128(struct PPC_DFP *dfp)
{
- decimal128FromNumber((decimal128 *)&dfp->t64, &dfp->t, &dfp->context);
+ decimal128FromNumber((decimal128 *)&dfp->vt, &dfp->t, &dfp->context);
}
static void dfp_set_FPSCR_flag(struct PPC_DFP *dfp, uint64_t flag,
@@ -435,9 +435,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
dfp_finalize_decimal##size(&dfp); \
postprocs(&dfp); \
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -647,12 +647,12 @@ uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
unsigned k; \
- uint64_t a64; \
+ ppc_vsr_t va; \
\
dfp_prepare_decimal##size(&dfp, 0, b, env); \
\
- get_dfp64(&a64, a); \
- k = a64 & 0x3F; \
+ get_dfp64(&va, a); \
+ k = va.VsrD(1) & 0x3F; \
\
if (unlikely(decNumberIsSpecial(&dfp.b))) { \
dfp.crbf = 1; \
@@ -755,9 +755,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
QUA_PPs(&dfp); \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -777,9 +777,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
QUA_PPs(&dfp); \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -845,23 +845,23 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
ppc_fprp_t *b, uint32_t rmc) \
{ \
struct PPC_DFP dfp; \
- uint64_t a64; \
+ ppc_vsr_t va; \
int32_t ref_sig; \
int32_t xmax = ((size) == 64) ? 369 : 6111; \
\
dfp_prepare_decimal##size(&dfp, 0, b, env); \
\
- get_dfp64(&a64, a); \
- ref_sig = a64 & 0x3f; \
+ get_dfp64(&va, a); \
+ ref_sig = va.VsrD(1) & 0x3f; \
\
_dfp_reround(rmc, ref_sig, xmax, &dfp); \
dfp_finalize_decimal##size(&dfp); \
QUA_PPs(&dfp); \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -882,9 +882,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
postprocs(&dfp); \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -910,39 +910,39 @@ DFP_HELPER_RINT(drintnq, RINTN_PPs, 128)
void helper_dctdp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
- uint64_t b64;
+ ppc_vsr_t vb;
uint32_t b_short;
- get_dfp64(&b64, b);
- b_short = (uint32_t)b64;
+ get_dfp64(&vb, b);
+ b_short = (uint32_t)vb.VsrD(1);
dfp_prepare_decimal64(&dfp, 0, 0, env);
decimal32ToNumber((decimal32 *)&b_short, &dfp.t);
dfp_finalize_decimal64(&dfp);
- set_dfp64(t, dfp.t64);
+ set_dfp64(t, &dfp.vt);
dfp_set_FPRF_from_FRT(&dfp);
}
void helper_dctqpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
- uint64_t b64;
+ ppc_vsr_t vb;
dfp_prepare_decimal128(&dfp, 0, 0, env);
- get_dfp64(&b64, b);
- decimal64ToNumber((decimal64 *)&b64, &dfp.t);
+ get_dfp64(&vb, b);
+ decimal64ToNumber((decimal64 *)&vb.VsrD(1), &dfp.t);
dfp_check_for_VXSNAN_and_convert_to_QNaN(&dfp);
dfp_set_FPRF_from_FRT(&dfp);
dfp_finalize_decimal128(&dfp);
- set_dfp128(t, dfp.t64);
+ set_dfp128(t, &dfp.vt);
}
void helper_drsp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
uint32_t t_short = 0;
- uint64_t t64;
+ ppc_vsr_t vt;
dfp_prepare_decimal64(&dfp, 0, b, env);
decimal32FromNumber((decimal32 *)&t_short, &dfp.b, &dfp.context);
decimal32ToNumber((decimal32 *)&t_short, &dfp.t);
@@ -952,16 +952,16 @@ void helper_drsp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
dfp_check_for_UX(&dfp);
dfp_check_for_XX(&dfp);
- t64 = (uint64_t)t_short;
- set_dfp64(t, &t64);
+ vt.VsrD(1) = (uint64_t)t_short;
+ set_dfp64(t, &vt);
}
void helper_drdpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
dfp_prepare_decimal128(&dfp, 0, b, env);
- decimal64FromNumber((decimal64 *)&dfp.t64, &dfp.b, &dfp.context);
- decimal64ToNumber((decimal64 *)&dfp.t64, &dfp.t);
+ decimal64FromNumber((decimal64 *)&dfp.vt.VsrD(1), &dfp.b, &dfp.context);
+ decimal64ToNumber((decimal64 *)&dfp.vt.VsrD(1), &dfp.t);
dfp_check_for_VXSNAN_and_convert_to_QNaN(&dfp);
dfp_set_FPRF_from_FRT_long(&dfp);
@@ -969,26 +969,26 @@ void helper_drdpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
dfp_check_for_UX(&dfp);
dfp_check_for_XX(&dfp);
- dfp.t64[0] = dfp.t64[1] = 0;
+ dfp.vt.VsrD(0) = dfp.vt.VsrD(1) = 0;
dfp_finalize_decimal64(&dfp);
- set_dfp128(t, dfp.t64);
+ set_dfp128(t, &dfp.vt);
}
#define DFP_HELPER_CFFIX(op, size) \
void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
- uint64_t b64; \
+ ppc_vsr_t vb; \
dfp_prepare_decimal##size(&dfp, 0, b, env); \
- get_dfp64(&b64, b); \
- decNumberFromInt64(&dfp.t, (int64_t)b64); \
+ get_dfp64(&vb, b); \
+ decNumberFromInt64(&dfp.t, (int64_t)vb.VsrD(1)); \
dfp_finalize_decimal##size(&dfp); \
CFFIX_PPs(&dfp); \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -1010,28 +1010,30 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
if (unlikely(decNumberIsSpecial(&dfp.b))) { \
uint64_t invalid_flags = FP_VX | FP_VXCVI; \
if (decNumberIsInfinite(&dfp.b)) { \
- dfp.t64[0] = decNumberIsNegative(&dfp.b) ? INT64_MIN : INT64_MAX; \
+ dfp.vt.VsrD(1) = decNumberIsNegative(&dfp.b) ? INT64_MIN : \
+ INT64_MAX; \
} else { /* NaN */ \
- dfp.t64[0] = INT64_MIN; \
+ dfp.vt.VsrD(1) = INT64_MIN; \
if (decNumberIsSNaN(&dfp.b)) { \
invalid_flags |= FP_VXSNAN; \
} \
} \
dfp_set_FPSCR_flag(&dfp, invalid_flags, FP_VE); \
} else if (unlikely(decNumberIsZero(&dfp.b))) { \
- dfp.t64[0] = 0; \
+ dfp.vt.VsrD(1) = 0; \
} else { \
decNumberToIntegralExact(&dfp.b, &dfp.b, &dfp.context); \
- dfp.t64[0] = decNumberIntegralToInt64(&dfp.b, &dfp.context); \
+ dfp.vt.VsrD(1) = decNumberIntegralToInt64(&dfp.b, &dfp.context); \
if (decContextTestStatus(&dfp.context, DEC_Invalid_operation)) { \
- dfp.t64[0] = decNumberIsNegative(&dfp.b) ? INT64_MIN : INT64_MAX; \
+ dfp.vt.VsrD(1) = decNumberIsNegative(&dfp.b) ? INT64_MIN : \
+ INT64_MAX; \
dfp_set_FPSCR_flag(&dfp, FP_VX | FP_VXCVI, FP_VE); \
} else { \
dfp_check_for_XX(&dfp); \
} \
} \
\
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
}
DFP_HELPER_CTFIX(dctfix, 64)
@@ -1075,11 +1077,11 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
dfp_prepare_decimal##size(&dfp, 0, b, env); \
\
decNumberGetBCD(&dfp.b, digits); \
- dfp.t64[0] = dfp.t64[1] = 0; \
+ dfp.vt.VsrD(0) = dfp.vt.VsrD(1) = 0; \
N = dfp.b.digits; \
\
for (i = 0; (i < N) && (i < (size)/4); i++) { \
- dfp_set_bcd_digit_##size(dfp.t64, digits[N-i-1], i); \
+ dfp_set_bcd_digit_##size(&dfp.vt.u64[0], digits[N - i - 1], i); \
} \
\
if (sp & 2) { \
@@ -1090,13 +1092,13 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
} else { \
sgn = ((sp & 1) ? 0xF : 0xC); \
} \
- dfp_set_sign_##size(dfp.t64, sgn); \
+ dfp_set_sign_##size(&dfp.vt.u64[0], sgn); \
} \
\
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -1126,7 +1128,8 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
decNumberZero(&dfp.t); \
\
if (s) { \
- uint8_t sgnNibble = dfp_get_bcd_digit_##size(dfp.b64, offset++); \
+ uint8_t sgnNibble = dfp_get_bcd_digit_##size(&dfp.vb.u64[0], \
+ offset++); \
switch (sgnNibble) { \
case 0xD: \
case 0xB: \
@@ -1146,7 +1149,8 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
\
while (offset < (size) / 4) { \
n++; \
- digits[(size) / 4 - n] = dfp_get_bcd_digit_##size(dfp.b64, offset++); \
+ digits[(size) / 4 - n] = dfp_get_bcd_digit_##size(&dfp.vb.u64[0], \
+ offset++); \
if (digits[(size) / 4 - n] > 10) { \
dfp_set_FPSCR_flag(&dfp, FP_VX | FP_VXCVI, FPSCR_VE); \
return; \
@@ -1165,9 +1169,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
dfp_finalize_decimal##size(&dfp); \
dfp_set_FPRF_from_FRT(&dfp); \
if ((size) == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if ((size) == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -1178,30 +1182,30 @@ DFP_HELPER_ENBCD(denbcdq, 128)
void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
- uint64_t t64; \
+ ppc_vsr_t vt; \
\
dfp_prepare_decimal##size(&dfp, 0, b, env); \
\
if (unlikely(decNumberIsSpecial(&dfp.b))) { \
if (decNumberIsInfinite(&dfp.b)) { \
- t64 = -1; \
+ vt.VsrD(1) = -1; \
} else if (decNumberIsSNaN(&dfp.b)) { \
- t64 = -3; \
+ vt.VsrD(1) = -3; \
} else if (decNumberIsQNaN(&dfp.b)) { \
- t64 = -2; \
+ vt.VsrD(1) = -2; \
} else { \
assert(0); \
} \
- set_dfp64(t, &t64); \
+ set_dfp64(t, &vt); \
} else { \
if ((size) == 64) { \
- t64 = dfp.b.exponent + 398; \
+ vt.VsrD(1) = dfp.b.exponent + 398; \
} else if ((size) == 128) { \
- t64 = dfp.b.exponent + 6176; \
+ vt.VsrD(1) = dfp.b.exponent + 6176; \
} else { \
assert(0); \
} \
- set_dfp64(t, &t64); \
+ set_dfp64(t, &vt); \
} \
}
@@ -1225,12 +1229,13 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
- uint64_t raw_qnan, raw_snan, raw_inf, max_exp, a64; \
+ uint64_t raw_qnan, raw_snan, raw_inf, max_exp; \
+ ppc_vsr_t va; \
int bias; \
int64_t exp; \
\
- get_dfp64(&a64, a); \
- exp = (int64_t)a64; \
+ get_dfp64(&va, a); \
+ exp = (int64_t)va.VsrD(1); \
dfp_prepare_decimal##size(&dfp, 0, b, env); \
\
if ((size) == 64) { \
@@ -1250,14 +1255,14 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
} \
\
if (unlikely((exp < 0) || (exp > max_exp))) { \
- dfp.t64[0] = dfp.b64[0]; \
- dfp.t64[1] = dfp.b64[1]; \
+ dfp.vt.VsrD(0) = dfp.vb.VsrD(0); \
+ dfp.vt.VsrD(1) = dfp.vb.VsrD(1); \
if (exp == -1) { \
- dfp_set_raw_exp_##size(dfp.t64, raw_inf); \
+ dfp_set_raw_exp_##size(&dfp.vt.u64[0], raw_inf); \
} else if (exp == -3) { \
- dfp_set_raw_exp_##size(dfp.t64, raw_snan); \
+ dfp_set_raw_exp_##size(&dfp.vt.u64[0], raw_snan); \
} else { \
- dfp_set_raw_exp_##size(dfp.t64, raw_qnan); \
+ dfp_set_raw_exp_##size(&dfp.vt.u64[0], raw_qnan); \
} \
} else { \
dfp.t = dfp.b; \
@@ -1268,9 +1273,9 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
dfp_finalize_decimal##size(&dfp); \
} \
if (size == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else if (size == 128) { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
@@ -1348,20 +1353,21 @@ void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
dfp_finalize_decimal##size(&dfp); \
} else { \
if ((size) == 64) { \
- dfp.t64[0] = dfp.a64[0] & 0xFFFC000000000000ULL; \
- dfp_clear_lmd_from_g5msb(dfp.t64); \
+ dfp.vt.VsrD(1) = dfp.va.VsrD(1) & \
+ 0xFFFC000000000000ULL; \
+ dfp_clear_lmd_from_g5msb(&dfp.vt.VsrD(1)); \
} else { \
- dfp.t64[HI_IDX] = dfp.a64[HI_IDX] & \
- 0xFFFFC00000000000ULL; \
- dfp_clear_lmd_from_g5msb(dfp.t64 + HI_IDX); \
- dfp.t64[LO_IDX] = 0; \
+ dfp.vt.VsrD(0) = dfp.va.VsrD(0) & \
+ 0xFFFFC00000000000ULL; \
+ dfp_clear_lmd_from_g5msb(&dfp.vt.VsrD(0)); \
+ dfp.vt.VsrD(1) = 0; \
} \
} \
\
if ((size) == 64) { \
- set_dfp64(t, dfp.t64); \
+ set_dfp64(t, &dfp.vt); \
} else { \
- set_dfp128(t, dfp.t64); \
+ set_dfp128(t, &dfp.vt); \
} \
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:49:18 +0000