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more a bit tweek

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NIIBE Yutaka
2013-12-20 12:53:13 +09:00
parent d3f4713360
commit b15d5a2444
4 changed files with 42 additions and 124 deletions
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6
polarssl/library/bignum.c
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@@ -1476,8 +1476,8 @@ static void mpi_montsqr( const mpi *N, t_uint mm, mpi *T )
asm ("mov r8, #0\n\t" /* R8 := 0, the constant ZERO from here. */
/* (C,U,R9) := w_i_i + x_i*x_i; w_i_i := R9; */
"ldr r9, [%[wij]]\n\t" /* R9 := w_i_i; */
"umull r11, r12, %[x_i], %[x_i]\n\t"
"mov %[c], r8\n\t"
"umull r11, r12, %[x_i], %[x_i]\n\t"
"adds r9, r9, r11\n\t"
"adc %[u], r8, r12\n\t"
"str r9, [%[wij]], #4\n\t"
@@ -1490,9 +1490,9 @@ static void mpi_montsqr( const mpi *N, t_uint mm, mpi *T )
/* (C,U,R9) := (C,U) + w_i_j + 2*x_i*x_j; */
"ldr r10, [%[xj]], #4\n\t"
"ldr r9, [%[wij]]\n\t"
"umull r11, r12, %[x_i], r10\n\t"
"adds r9, r9, %[u]\n\t"
"adc %[u], %[c], r8\n\t"
"umull r11, r12, %[x_i], r10\n\t"
"adds r9, r9, r11\n\t"
"adcs %[u], %[u], r12\n\t"
"adc %[c], r8, r8\n\t"
@@ -1517,9 +1517,9 @@ static void mpi_montsqr( const mpi *N, t_uint mm, mpi *T )
"adcs %[u], %[u], r12\n\t"
"adc %[c], %[c], r8\n\t"
/* (C,U,R10) := (C,U) + w_i_j + 2*x_i*x_j; */
"umull r11, r12, %[x_i], r7\n\t"
"adds r10, r10, %[u]\n\t"
"adc %[u], %[c], r8\n\t"
"umull r11, r12, %[x_i], r7\n\t"
"adds r10, r10, r11\n\t"
"adcs %[u], %[u], r12\n\t"
"adc %[c], r8, r8\n\t"