Index: nss/mozilla/security/nss/lib/freebl/mpi/mpi_arm.c |
=================================================================== |
--- nss/mozilla/security/nss/lib/freebl/mpi/mpi_arm.c (revision 0) |
+++ nss/mozilla/security/nss/lib/freebl/mpi/mpi_arm.c (revision 0) |
@@ -0,0 +1,171 @@ |
+/* This Source Code Form is subject to the terms of the Mozilla Public |
+ * License, v. 2.0. If a copy of the MPL was not distributed with this |
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
+ |
+/* This inlined version is for 32-bit ARM platform only */ |
+ |
+#if !defined(__arm__) |
+#error "This is for ARM only" |
+#endif |
+ |
+/* 16-bit thumb doesn't work inlined assember version */ |
+#if (!defined(__thumb__) || defined(__thumb2__)) && !defined(__ARM_ARCH_3__) |
+ |
+#include "mpi-priv.h" |
+ |
+#ifdef MP_ASSEMBLY_MULTIPLY |
+void s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) |
+{ |
+ __asm__ __volatile__( |
+ "mov r5, #0\n" |
+#ifdef __thumb2__ |
+ "cbz %1, 2f\n" |
+#else |
+ "cmp %1, r5\n" /* r5 is 0 now */ |
+ "beq 2f\n" |
+#endif |
+ |
+ "1:\n" |
+ "mov r4, #0\n" |
+ "ldr r6, [%0], #4\n" |
+ "umlal r5, r4, r6, %2\n" |
+ "str r5, [%3], #4\n" |
+ "mov r5, r4\n" |
+ |
+ "subs %1, #1\n" |
+ "bne 1b\n" |
+ |
+ "2:\n" |
+ "str r5, [%3]\n" |
+ : |
+ : "r"(a), "r"(a_len), "r"(b), "r"(c) |
+ : "memory", "cc", "%r4", "%r5", "%r6"); |
+} |
+ |
+void s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) |
+{ |
+ __asm__ __volatile__( |
+ "mov r5, #0\n" |
+#ifdef __thumb2__ |
+ "cbz %1, 2f\n" |
+#else |
+ "cmp %1, r5\n" /* r5 is 0 now */ |
+ "beq 2f\n" |
+#endif |
+ |
+ "1:\n" |
+ "mov r4, #0\n" |
+ "ldr r6, [%3]\n" |
+ "adds r5, r6\n" |
+ "adc r4, r4, #0\n" |
+ |
+ "ldr r6, [%0], #4\n" |
+ "umlal r5, r4, r6, %2\n" |
+ "str r5, [%3], #4\n" |
+ "mov r5, r4\n" |
+ |
+ "subs %1, #1\n" |
+ "bne 1b\n" |
+ |
+ "2:\n" |
+ "str r5, [%3]\n" |
+ : |
+ : "r"(a), "r"(a_len), "r"(b), "r"(c) |
+ : "memory", "cc", "%r4", "%r5", "%r6"); |
+} |
+ |
+void s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c) |
+{ |
+ if (!a_len) |
+ return; |
+ |
+ __asm__ __volatile__( |
+ "mov r5, #0\n" |
+ |
+ "1:\n" |
+ "mov r4, #0\n" |
+ "ldr r6, [%3]\n" |
+ "adds r5, r6\n" |
+ "adc r4, r4, #0\n" |
+ "ldr r6, [%0], #4\n" |
+ "umlal r5, r4, r6, %2\n" |
+ "str r5, [%3], #4\n" |
+ "mov r5, r4\n" |
+ |
+ "subs %1, #1\n" |
+ "bne 1b\n" |
+ |
+#ifdef __thumb2__ |
+ "cbz r4, 3f\n" |
+#else |
+ "cmp r4, #0\n" |
+ "beq 3f\n" |
+#endif |
+ |
+ "2:\n" |
+ "mov r4, #0\n" |
+ "ldr r6, [%3]\n" |
+ "adds r5, r6\n" |
+ "adc r4, r4, #0\n" |
+ "str r5, [%3], #4\n" |
+ "movs r5, r4\n" |
+ "bne 2b\n" |
+ |
+ "3:\n" |
+ : |
+ : "r"(a), "r"(a_len), "r"(b), "r"(c) |
+ : "memory", "cc", "%r4", "%r5", "%r6"); |
+} |
+#endif |
+ |
+#ifdef MP_ASSEMBLY_SQUARE |
+void s_mpv_sqr_add_prop(const mp_digit *pa, mp_size a_len, mp_digit *ps) |
+{ |
+ if (!a_len) |
+ return; |
+ |
+ __asm__ __volatile__( |
+ "mov r3, #0\n" |
+ |
+ "1:\n" |
+ "mov r4, #0\n" |
+ "ldr r6, [%0], #4\n" |
+ "ldr r5, [%2]\n" |
+ "adds r3, r5\n" |
+ "adc r4, r4, #0\n" |
+ "umlal r3, r4, r6, r6\n" /* w = r3:r4 */ |
+ "str r3, [%2], #4\n" |
+ |
+ "ldr r5, [%2]\n" |
+ "adds r3, r4, r5\n" |
+ "mov r4, #0\n" |
+ "adc r4, r4, #0\n" |
+ "str r3, [%2], #4\n" |
+ "mov r3, r4\n" |
+ |
+ "subs %1, #1\n" |
+ "bne 1b\n" |
+ |
+#ifdef __thumb2__ |
+ "cbz r3, 3f\n" |
+#else |
+ "cmp r3, #0\n" |
+ "beq 3f\n" |
+#endif |
+ |
+ "2:\n" |
+ "mov r4, #0\n" |
+ "ldr r5, [%2]\n" |
+ "adds r3, r5\n" |
+ "adc r4, r4, #0\n" |
+ "str r3, [%2], #4\n" |
+ "movs r3, r4\n" |
+ "bne 2b\n" |
+ |
+ "3:" |
+ : |
+ : "r"(pa), "r"(a_len), "r"(ps) |
+ : "memory", "cc", "%r3", "%r4", "%r5", "%r6"); |
+} |
+#endif |
+#endif |
Property changes on: nss/mozilla/security/nss/lib/freebl/mpi/mpi_arm.c |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |