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path: root/nss/lib/freebl/mpi/mpi_sparc.c
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Diffstat (limited to 'nss/lib/freebl/mpi/mpi_sparc.c')
-rw-r--r--nss/lib/freebl/mpi/mpi_sparc.c288
1 files changed, 145 insertions, 143 deletions
diff --git a/nss/lib/freebl/mpi/mpi_sparc.c b/nss/lib/freebl/mpi/mpi_sparc.c
index 628843e..1e88357 100644
--- a/nss/lib/freebl/mpi/mpi_sparc.c
+++ b/nss/lib/freebl/mpi/mpi_sparc.c
@@ -18,207 +18,209 @@
extern mp_digit mul_add_inp(mp_digit *x, const mp_digit *y, int n, mp_digit a);
/* vector z = vector x + vector y * scaler a; where y is of length n words. */
-extern mp_digit mul_add(mp_digit *z, const mp_digit *x, const mp_digit *y,
- int n, mp_digit a);
+extern mp_digit mul_add(mp_digit *z, const mp_digit *x, const mp_digit *y,
+ int n, mp_digit a);
/* v8 versions of these functions run on any Sparc v8 CPU. */
/* This trick works on Sparc V8 CPUs with the Workshop compilers. */
-#define MP_MUL_DxD(a, b, Phi, Plo) \
- { unsigned long long product = (unsigned long long)a * b; \
- Plo = (mp_digit)product; \
- Phi = (mp_digit)(product >> MP_DIGIT_BIT); }
+#define MP_MUL_DxD(a, b, Phi, Plo) \
+ { \
+ unsigned long long product = (unsigned long long)a * b; \
+ Plo = (mp_digit)product; \
+ Phi = (mp_digit)(product >> MP_DIGIT_BIT); \
+ }
/* c = a * b */
-static void
+static void
v8_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
#if !defined(MP_NO_MP_WORD)
- mp_digit d = 0;
-
- /* Inner product: Digits of a */
- while (a_len--) {
- mp_word w = ((mp_word)b * *a++) + d;
- *c++ = ACCUM(w);
- d = CARRYOUT(w);
- }
- *c = d;
+ mp_digit d = 0;
+
+ /* Inner product: Digits of a */
+ while (a_len--) {
+ mp_word w = ((mp_word)b * *a++) + d;
+ *c++ = ACCUM(w);
+ d = CARRYOUT(w);
+ }
+ *c = d;
#else
- mp_digit carry = 0;
- while (a_len--) {
- mp_digit a_i = *a++;
- mp_digit a0b0, a1b1;
-
- MP_MUL_DxD(a_i, b, a1b1, a0b0);
-
- a0b0 += carry;
- if (a0b0 < carry)
- ++a1b1;
- *c++ = a0b0;
- carry = a1b1;
- }
- *c = carry;
+ mp_digit carry = 0;
+ while (a_len--) {
+ mp_digit a_i = *a++;
+ mp_digit a0b0, a1b1;
+
+ MP_MUL_DxD(a_i, b, a1b1, a0b0);
+
+ a0b0 += carry;
+ if (a0b0 < carry)
+ ++a1b1;
+ *c++ = a0b0;
+ carry = a1b1;
+ }
+ *c = carry;
#endif
}
/* c += a * b */
-static void
+static void
v8_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
#if !defined(MP_NO_MP_WORD)
- mp_digit d = 0;
-
- /* Inner product: Digits of a */
- while (a_len--) {
- mp_word w = ((mp_word)b * *a++) + *c + d;
- *c++ = ACCUM(w);
- d = CARRYOUT(w);
- }
- *c = d;
+ mp_digit d = 0;
+
+ /* Inner product: Digits of a */
+ while (a_len--) {
+ mp_word w = ((mp_word)b * *a++) + *c + d;
+ *c++ = ACCUM(w);
+ d = CARRYOUT(w);
+ }
+ *c = d;
#else
- mp_digit carry = 0;
- while (a_len--) {
- mp_digit a_i = *a++;
- mp_digit a0b0, a1b1;
-
- MP_MUL_DxD(a_i, b, a1b1, a0b0);
-
- a0b0 += carry;
- if (a0b0 < carry)
- ++a1b1;
- a0b0 += a_i = *c;
- if (a0b0 < a_i)
- ++a1b1;
- *c++ = a0b0;
- carry = a1b1;
- }
- *c = carry;
+ mp_digit carry = 0;
+ while (a_len--) {
+ mp_digit a_i = *a++;
+ mp_digit a0b0, a1b1;
+
+ MP_MUL_DxD(a_i, b, a1b1, a0b0);
+
+ a0b0 += carry;
+ if (a0b0 < carry)
+ ++a1b1;
+ a0b0 += a_i = *c;
+ if (a0b0 < a_i)
+ ++a1b1;
+ *c++ = a0b0;
+ carry = a1b1;
+ }
+ *c = carry;
#endif
}
/* Presently, this is only used by the Montgomery arithmetic code. */
/* c += a * b */
-static void
+static void
v8_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
#if !defined(MP_NO_MP_WORD)
- mp_digit d = 0;
-
- /* Inner product: Digits of a */
- while (a_len--) {
- mp_word w = ((mp_word)b * *a++) + *c + d;
- *c++ = ACCUM(w);
- d = CARRYOUT(w);
- }
-
- while (d) {
- mp_word w = (mp_word)*c + d;
- *c++ = ACCUM(w);
- d = CARRYOUT(w);
- }
+ mp_digit d = 0;
+
+ /* Inner product: Digits of a */
+ while (a_len--) {
+ mp_word w = ((mp_word)b * *a++) + *c + d;
+ *c++ = ACCUM(w);
+ d = CARRYOUT(w);
+ }
+
+ while (d) {
+ mp_word w = (mp_word)*c + d;
+ *c++ = ACCUM(w);
+ d = CARRYOUT(w);
+ }
#else
- mp_digit carry = 0;
- while (a_len--) {
- mp_digit a_i = *a++;
- mp_digit a0b0, a1b1;
-
- MP_MUL_DxD(a_i, b, a1b1, a0b0);
-
- a0b0 += carry;
- if (a0b0 < carry)
- ++a1b1;
-
- a0b0 += a_i = *c;
- if (a0b0 < a_i)
- ++a1b1;
-
- *c++ = a0b0;
- carry = a1b1;
- }
- while (carry) {
- mp_digit c_i = *c;
- carry += c_i;
- *c++ = carry;
- carry = carry < c_i;
- }
+ mp_digit carry = 0;
+ while (a_len--) {
+ mp_digit a_i = *a++;
+ mp_digit a0b0, a1b1;
+
+ MP_MUL_DxD(a_i, b, a1b1, a0b0);
+
+ a0b0 += carry;
+ if (a0b0 < carry)
+ ++a1b1;
+
+ a0b0 += a_i = *c;
+ if (a0b0 < a_i)
+ ++a1b1;
+
+ *c++ = a0b0;
+ carry = a1b1;
+ }
+ while (carry) {
+ mp_digit c_i = *c;
+ carry += c_i;
+ *c++ = carry;
+ carry = carry < c_i;
+ }
#endif
}
/* These functions run only on v8plus+vis or v9+vis CPUs. */
/* c = a * b */
-void
+void
s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
if (a_len <= 256) {
- if (a == c || ((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
- mp_digit * px;
- px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
- memcpy(px, a, a_len * sizeof(*a));
- a = px;
- if (a_len & 1) {
- px[a_len] = 0;
- }
- }
- s_mp_setz(c, a_len + 1);
- d = mul_add_inp(c, a, a_len, b);
- c[a_len] = d;
+ if (a == c || ((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
+ mp_digit *px;
+ px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
+ memcpy(px, a, a_len * sizeof(*a));
+ a = px;
+ if (a_len & 1) {
+ px[a_len] = 0;
+ }
+ }
+ s_mp_setz(c, a_len + 1);
+ d = mul_add_inp(c, a, a_len, b);
+ c[a_len] = d;
} else {
- v8_mpv_mul_d(a, a_len, b, c);
+ v8_mpv_mul_d(a, a_len, b, c);
}
}
/* c += a * b, where a is a_len words long. */
-void
+void
s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
if (a_len <= 256) {
- if (((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
- mp_digit * px;
- px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
- memcpy(px, a, a_len * sizeof(*a));
- a = px;
- if (a_len & 1) {
- px[a_len] = 0;
- }
- }
- d = mul_add_inp(c, a, a_len, b);
- c[a_len] = d;
+ if (((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
+ mp_digit *px;
+ px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
+ memcpy(px, a, a_len * sizeof(*a));
+ a = px;
+ if (a_len & 1) {
+ px[a_len] = 0;
+ }
+ }
+ d = mul_add_inp(c, a, a_len, b);
+ c[a_len] = d;
} else {
- v8_mpv_mul_d_add(a, a_len, b, c);
+ v8_mpv_mul_d_add(a, a_len, b, c);
}
}
/* c += a * b, where a is y words long. */
-void
+void
s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
if (a_len <= 256) {
- if (((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
- mp_digit * px;
- px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
- memcpy(px, a, a_len * sizeof(*a));
- a = px;
- if (a_len & 1) {
- px[a_len] = 0;
- }
- }
- d = mul_add_inp(c, a, a_len, b);
- if (d) {
- c += a_len;
- do {
- mp_digit sum = d + *c;
- *c++ = sum;
- d = sum < d;
- } while (d);
- }
+ if (((ptrdiff_t)a & 0x7) != 0 || (a_len & 1) != 0) {
+ mp_digit *px;
+ px = (((ptrdiff_t)x & 0x7) != 0) ? x + 1 : x;
+ memcpy(px, a, a_len * sizeof(*a));
+ a = px;
+ if (a_len & 1) {
+ px[a_len] = 0;
+ }
+ }
+ d = mul_add_inp(c, a, a_len, b);
+ if (d) {
+ c += a_len;
+ do {
+ mp_digit sum = d + *c;
+ *c++ = sum;
+ d = sum < d;
+ } while (d);
+ }
} else {
- v8_mpv_mul_d_add_prop(a, a_len, b, c);
+ v8_mpv_mul_d_add_prop(a, a_len, b, c);
}
}
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