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https://github.com/taigrr/arduinolibs
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Speed up step mapping theta in KeccakCore
This commit is contained in:
Rhys Weatherley
parent
368c6be1cd
commit
4079e6c2b7
@ -231,10 +231,10 @@ void theta(void)
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insn_printf("ldi r%d,5", loop1_reg);
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insn_printf("100:");
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// Load state.A[0][index] into t_reg.
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// Load A[0][index] into t_reg.
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load64_from_z(t_reg, 0);
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// XOR with state.A[1][index] .. state.A[4][index]
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// XOR with A[1][index] .. A[4][index]
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insn_printf("ldi r%d,4", loop2_reg);
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insn_printf("101:");
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adjust_pointer_reg(z_reg, 40);
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@ -242,7 +242,7 @@ void theta(void)
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insn_printf("dec r%d", loop2_reg);
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insn_printf("brne 101b");
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// Store into state.B[0][index].
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// Store into B[0][index].
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store64_to_x(t_reg);
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// End of the outer loop.
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@ -250,37 +250,31 @@ void theta(void)
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insn_printf("dec r%d", loop1_reg);
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insn_printf("brne 100b");
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adjust_pointer_reg(z_reg, -40);
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adjust_pointer_reg(x_reg, -40);
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// Generate the D values into the second row of B. To make this
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// easier, we know that the original X value is also in Y so we
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// can use offsets relative to Y for the first row of B.
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// Generate D[index] and XOR with every A[x][index] element.
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// To make this easier, we know that the original X value is also
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// in Y so we can use offsets relative to Y for the first row of B.
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printf("\n");
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indent_printf("// Step mapping theta. Compute D.\n");
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indent_printf("// Step mapping theta. Compute D and XOR with A.\n");
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for (index = 0; index < 5; ++index) {
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// Compute D[index] and put it into t_reg.
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load64_from_y(t_reg, ((index + 1) % 5) * 8);
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leftRotate1(t_reg);
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load64_from_y_combine("eor", t_reg, ((index + 4) % 5) * 8);
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store64_to_x(t_reg);
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}
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adjust_pointer_reg(x_reg, -40);
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// XOR every D[index] with every A[x][index] element.
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printf("\n");
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indent_printf("// Step mapping theta. XOR D with A.\n");
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insn_printf("ldi r%d,5", loop1_reg);
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insn_printf("102:");
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load64_from_x(t_reg);
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// XOR the computed D[index] with all A[x][index] elements.
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insn_printf("ldi r%d,5", loop2_reg);
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insn_printf("103:");
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insn_printf("%d:", 103 + index);
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combine64_with_z("eor", t_reg);
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adjust_pointer_reg(z_reg, 40);
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insn_printf("dec r%d", loop2_reg);
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insn_printf("brne 103b");
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insn_printf("brne %db", 103 + index);
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if (index != 4)
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adjust_pointer_reg(z_reg, -(200 - 8));
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insn_printf("dec r%d", loop1_reg);
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insn_printf("brne 102b");
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adjust_pointer_reg(x_reg, -80);
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adjust_pointer_reg(z_reg, -40);
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else
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adjust_pointer_reg(z_reg, -(200 + 40 - 8));
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}
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}
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void rho_pi(void)
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@ -341,10 +335,10 @@ void rho_pi(void)
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// Heading for this step.
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printf("\n");
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if (rot != 0) {
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indent_printf("// state.B[%d][%d] = leftRotate%d_64(state.A[%d][%d])\n",
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indent_printf("// B[%d][%d] = leftRotate%d_64(A[%d][%d])\n",
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Bx, By, rot, Ax, Ay);
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} else {
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indent_printf("// state.B[%d][%d] = state.A[%d][%d]\n",
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indent_printf("// B[%d][%d] = A[%d][%d]\n",
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Bx, By, Ax, Ay);
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}
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@ -469,10 +463,10 @@ void chi(void)
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int index;
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// Step mapping chi. A is pointed to by Z and B is pointed to by X/Y.
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// state.A[index2][index] =
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// state.B[index2][index] ^
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// ((~state.B[index2][(index + 1) % 5]) &
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// state.B[index2][(index + 2) % 5]);
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// A[index2][index] =
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// B[index2][index] ^
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// ((~B[index2][(index + 1) % 5]) &
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// B[index2][(index + 2) % 5]);
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// We compute this using an interleaving method. We load five bytes
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// from the 5 words in a row of B and then compute the 5 output bytes
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// from that and store. Then we move onto the next 5 bytes of each row.
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@ -329,8 +329,9 @@ void KeccakCore::keccakp()
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"dec r20\n"
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"brne 100b\n"
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"sbiw r30,40\n"
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"sbiw r26,40\n"
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// Step mapping theta. Compute D.
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// Step mapping theta. Compute D and XOR with A.
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"ldd r8,Y+8\n"
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"ldd r9,Y+9\n"
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"ldd r10,Y+10\n"
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@ -364,14 +365,37 @@ void KeccakCore::keccakp()
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"eor r14,__tmp_reg__\n"
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"ldd __tmp_reg__,Y+39\n"
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"eor r15,__tmp_reg__\n"
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"st X+,r8\n"
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"st X+,r9\n"
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"st X+,r10\n"
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"st X+,r11\n"
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"st X+,r12\n"
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"st X+,r13\n"
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"st X+,r14\n"
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"st X+,r15\n"
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"ldi r19,5\n"
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"103:\n"
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"ld __tmp_reg__,Z\n"
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"eor __tmp_reg__,r8\n"
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"st Z,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+1\n"
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"eor __tmp_reg__,r9\n"
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"std Z+1,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+2\n"
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"eor __tmp_reg__,r10\n"
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"std Z+2,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+3\n"
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"eor __tmp_reg__,r11\n"
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"std Z+3,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+4\n"
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"eor __tmp_reg__,r12\n"
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"std Z+4,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+5\n"
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"eor __tmp_reg__,r13\n"
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"std Z+5,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+6\n"
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"eor __tmp_reg__,r14\n"
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"std Z+6,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+7\n"
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"eor __tmp_reg__,r15\n"
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"std Z+7,__tmp_reg__\n"
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"adiw r30,40\n"
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"dec r19\n"
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"brne 103b\n"
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"subi r30,192\n"
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"sbc r31,__zero_reg__\n"
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"ldd r8,Y+16\n"
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"ldd r9,Y+17\n"
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"ldd r10,Y+18\n"
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@ -405,14 +429,37 @@ void KeccakCore::keccakp()
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"eor r14,__tmp_reg__\n"
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"ldd __tmp_reg__,Y+7\n"
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"eor r15,__tmp_reg__\n"
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"st X+,r8\n"
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"st X+,r9\n"
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"st X+,r10\n"
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"st X+,r11\n"
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"st X+,r12\n"
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"st X+,r13\n"
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"st X+,r14\n"
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"st X+,r15\n"
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"ldi r19,5\n"
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"104:\n"
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"ld __tmp_reg__,Z\n"
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"eor __tmp_reg__,r8\n"
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"st Z,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+1\n"
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"eor __tmp_reg__,r9\n"
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"std Z+1,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+2\n"
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"eor __tmp_reg__,r10\n"
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"std Z+2,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+3\n"
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"eor __tmp_reg__,r11\n"
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"std Z+3,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+4\n"
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"eor __tmp_reg__,r12\n"
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"std Z+4,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+5\n"
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"eor __tmp_reg__,r13\n"
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"std Z+5,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+6\n"
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"eor __tmp_reg__,r14\n"
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"std Z+6,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+7\n"
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"eor __tmp_reg__,r15\n"
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"std Z+7,__tmp_reg__\n"
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"adiw r30,40\n"
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"dec r19\n"
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"brne 104b\n"
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"subi r30,192\n"
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"sbc r31,__zero_reg__\n"
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"ldd r8,Y+24\n"
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"ldd r9,Y+25\n"
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"ldd r10,Y+26\n"
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@ -446,14 +493,37 @@ void KeccakCore::keccakp()
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"eor r14,__tmp_reg__\n"
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"ldd __tmp_reg__,Y+15\n"
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"eor r15,__tmp_reg__\n"
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"st X+,r8\n"
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"st X+,r9\n"
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"st X+,r10\n"
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"st X+,r11\n"
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"st X+,r12\n"
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"st X+,r13\n"
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"st X+,r14\n"
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"st X+,r15\n"
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"ldi r19,5\n"
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"105:\n"
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"ld __tmp_reg__,Z\n"
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"eor __tmp_reg__,r8\n"
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"st Z,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+1\n"
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"eor __tmp_reg__,r9\n"
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"std Z+1,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+2\n"
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"eor __tmp_reg__,r10\n"
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"std Z+2,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+3\n"
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"eor __tmp_reg__,r11\n"
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"std Z+3,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+4\n"
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"eor __tmp_reg__,r12\n"
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"std Z+4,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+5\n"
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"eor __tmp_reg__,r13\n"
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"std Z+5,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+6\n"
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"eor __tmp_reg__,r14\n"
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"std Z+6,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+7\n"
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"eor __tmp_reg__,r15\n"
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"std Z+7,__tmp_reg__\n"
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"adiw r30,40\n"
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"dec r19\n"
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"brne 105b\n"
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"subi r30,192\n"
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"sbc r31,__zero_reg__\n"
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"ldd r8,Y+32\n"
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"ldd r9,Y+33\n"
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"ldd r10,Y+34\n"
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@ -487,14 +557,37 @@ void KeccakCore::keccakp()
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"eor r14,__tmp_reg__\n"
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"ldd __tmp_reg__,Y+23\n"
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"eor r15,__tmp_reg__\n"
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"st X+,r8\n"
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"st X+,r9\n"
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"st X+,r10\n"
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"st X+,r11\n"
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"st X+,r12\n"
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"st X+,r13\n"
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"st X+,r14\n"
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"st X+,r15\n"
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"ldi r19,5\n"
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"106:\n"
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"ld __tmp_reg__,Z\n"
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"eor __tmp_reg__,r8\n"
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"st Z,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+1\n"
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"eor __tmp_reg__,r9\n"
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"std Z+1,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+2\n"
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"eor __tmp_reg__,r10\n"
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"std Z+2,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+3\n"
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"eor __tmp_reg__,r11\n"
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"std Z+3,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+4\n"
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"eor __tmp_reg__,r12\n"
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"std Z+4,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+5\n"
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"eor __tmp_reg__,r13\n"
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"std Z+5,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+6\n"
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"eor __tmp_reg__,r14\n"
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"std Z+6,__tmp_reg__\n"
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"ldd __tmp_reg__,Z+7\n"
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"eor __tmp_reg__,r15\n"
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"std Z+7,__tmp_reg__\n"
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"adiw r30,40\n"
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"dec r19\n"
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"brne 106b\n"
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"subi r30,192\n"
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"sbc r31,__zero_reg__\n"
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"ld r8,Y\n"
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"ldd r9,Y+1\n"
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"ldd r10,Y+2\n"
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@ -528,29 +621,8 @@ void KeccakCore::keccakp()
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"eor r14,__tmp_reg__\n"
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"ldd __tmp_reg__,Y+31\n"
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"eor r15,__tmp_reg__\n"
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"st X+,r8\n"
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"st X+,r9\n"
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"st X+,r10\n"
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"st X+,r11\n"
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"st X+,r12\n"
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"st X+,r13\n"
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"st X+,r14\n"
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"st X+,r15\n"
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"sbiw r26,40\n"
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// Step mapping theta. XOR D with A.
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"ldi r20,5\n"
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"102:\n"
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"ld r8,X+\n"
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"ld r9,X+\n"
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"ld r10,X+\n"
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"ld r11,X+\n"
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"ld r12,X+\n"
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"ld r13,X+\n"
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"ld r14,X+\n"
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"ld r15,X+\n"
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"ldi r19,5\n"
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"103:\n"
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"107:\n"
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"ld __tmp_reg__,Z\n"
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"eor __tmp_reg__,r8\n"
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"st Z,__tmp_reg__\n"
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@ -577,18 +649,13 @@ void KeccakCore::keccakp()
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"std Z+7,__tmp_reg__\n"
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"adiw r30,40\n"
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"dec r19\n"
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"brne 103b\n"
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"subi r30,192\n"
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"brne 107b\n"
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"subi r30,232\n"
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"sbc r31,__zero_reg__\n"
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"dec r20\n"
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"brne 102b\n"
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"subi r26,80\n"
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"sbc r27,__zero_reg__\n"
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"sbiw r30,40\n"
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// Step mappings rho and pi combined into one step.
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// state.B[0][0] = state.A[0][0]
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// B[0][0] = A[0][0]
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"ld r8,Z\n"
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"ldd r9,Z+1\n"
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"ldd r10,Z+2\n"
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@ -606,7 +673,7 @@ void KeccakCore::keccakp()
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"st X+,r14\n"
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"st X+,r15\n"
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// state.B[1][0] = leftRotate28_64(state.A[0][3])
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// B[1][0] = leftRotate28_64(A[0][3])
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"adiw r26,32\n"
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"ldd r8,Z+24\n"
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"ldd r9,Z+25\n"
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@ -661,7 +728,7 @@ void KeccakCore::keccakp()
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"st X+,r11\n"
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"st X+,r12\n"
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// state.B[2][0] = leftRotate1_64(state.A[0][1])
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// B[2][0] = leftRotate1_64(A[0][1])
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"adiw r26,32\n"
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"ldd r8,Z+8\n"
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"ldd r9,Z+9\n"
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@ -689,7 +756,7 @@ void KeccakCore::keccakp()
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"st X+,r14\n"
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"st X+,r15\n"
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// state.B[3][0] = leftRotate27_64(state.A[0][4])
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// B[3][0] = leftRotate27_64(A[0][4])
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"adiw r26,32\n"
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"ldd r8,Z+32\n"
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"ldd r9,Z+33\n"
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@ -735,7 +802,7 @@ void KeccakCore::keccakp()
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"st X+,r11\n"
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"st X+,r12\n"
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// state.B[4][0] = leftRotate62_64(state.A[0][2])
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// B[4][0] = leftRotate62_64(A[0][2])
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"adiw r26,32\n"
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"ldd r8,Z+16\n"
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"ldd r9,Z+17\n"
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@ -774,7 +841,7 @@ void KeccakCore::keccakp()
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"st X+,r14\n"
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"st X+,r15\n"
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// state.B[0][1] = leftRotate44_64(state.A[1][1])
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// B[0][1] = leftRotate44_64(A[1][1])
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||||
"subi r26,160\n"
|
||||
"sbc r27,__zero_reg__\n"
|
||||
"adiw r30,40\n"
|
||||
@ -831,7 +898,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r9\n"
|
||||
"st X+,r10\n"
|
||||
|
||||
// state.B[1][1] = leftRotate20_64(state.A[1][4])
|
||||
// B[1][1] = leftRotate20_64(A[1][4])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+32\n"
|
||||
"ldd r9,Z+33\n"
|
||||
@ -886,7 +953,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r12\n"
|
||||
"st X+,r13\n"
|
||||
|
||||
// state.B[2][1] = leftRotate6_64(state.A[1][2])
|
||||
// B[2][1] = leftRotate6_64(A[1][2])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+16\n"
|
||||
"ldd r9,Z+17\n"
|
||||
@ -925,7 +992,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r13\n"
|
||||
"st X+,r14\n"
|
||||
|
||||
// state.B[3][1] = leftRotate36_64(state.A[1][0])
|
||||
// B[3][1] = leftRotate36_64(A[1][0])
|
||||
"adiw r26,32\n"
|
||||
"ld r8,Z\n"
|
||||
"ldd r9,Z+1\n"
|
||||
@ -980,7 +1047,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r10\n"
|
||||
"st X+,r11\n"
|
||||
|
||||
// state.B[4][1] = leftRotate55_64(state.A[1][3])
|
||||
// B[4][1] = leftRotate55_64(A[1][3])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+24\n"
|
||||
"ldd r9,Z+25\n"
|
||||
@ -1009,7 +1076,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r15\n"
|
||||
"st X+,r8\n"
|
||||
|
||||
// state.B[0][2] = leftRotate43_64(state.A[2][2])
|
||||
// B[0][2] = leftRotate43_64(A[2][2])
|
||||
"subi r26,160\n"
|
||||
"sbc r27,__zero_reg__\n"
|
||||
"adiw r30,40\n"
|
||||
@ -1057,7 +1124,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r9\n"
|
||||
"st X+,r10\n"
|
||||
|
||||
// state.B[1][2] = leftRotate3_64(state.A[2][0])
|
||||
// B[1][2] = leftRotate3_64(A[2][0])
|
||||
"adiw r26,32\n"
|
||||
"ld r8,Z\n"
|
||||
"ldd r9,Z+1\n"
|
||||
@ -1103,7 +1170,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r14\n"
|
||||
"st X+,r15\n"
|
||||
|
||||
// state.B[2][2] = leftRotate25_64(state.A[2][3])
|
||||
// B[2][2] = leftRotate25_64(A[2][3])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+24\n"
|
||||
"ldd r9,Z+25\n"
|
||||
@ -1131,7 +1198,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r11\n"
|
||||
"st X+,r12\n"
|
||||
|
||||
// state.B[3][2] = leftRotate10_64(state.A[2][1])
|
||||
// B[3][2] = leftRotate10_64(A[2][1])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+8\n"
|
||||
"ldd r9,Z+9\n"
|
||||
@ -1168,7 +1235,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r13\n"
|
||||
"st X+,r14\n"
|
||||
|
||||
// state.B[4][2] = leftRotate39_64(state.A[2][4])
|
||||
// B[4][2] = leftRotate39_64(A[2][4])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+32\n"
|
||||
"ldd r9,Z+33\n"
|
||||
@ -1197,7 +1264,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r9\n"
|
||||
"st X+,r10\n"
|
||||
|
||||
// state.B[0][3] = leftRotate21_64(state.A[3][3])
|
||||
// B[0][3] = leftRotate21_64(A[3][3])
|
||||
"subi r26,160\n"
|
||||
"sbc r27,__zero_reg__\n"
|
||||
"adiw r30,40\n"
|
||||
@ -1248,7 +1315,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r11\n"
|
||||
"st X+,r12\n"
|
||||
|
||||
// state.B[1][3] = leftRotate45_64(state.A[3][1])
|
||||
// B[1][3] = leftRotate45_64(A[3][1])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+8\n"
|
||||
"ldd r9,Z+9\n"
|
||||
@ -1297,7 +1364,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r8\n"
|
||||
"st X+,r9\n"
|
||||
|
||||
// state.B[2][3] = leftRotate8_64(state.A[3][4])
|
||||
// B[2][3] = leftRotate8_64(A[3][4])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+32\n"
|
||||
"ldd r9,Z+33\n"
|
||||
@ -1316,7 +1383,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r13\n"
|
||||
"st X+,r14\n"
|
||||
|
||||
// state.B[3][3] = leftRotate15_64(state.A[3][2])
|
||||
// B[3][3] = leftRotate15_64(A[3][2])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+16\n"
|
||||
"ldd r9,Z+17\n"
|
||||
@ -1345,7 +1412,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r12\n"
|
||||
"st X+,r13\n"
|
||||
|
||||
// state.B[4][3] = leftRotate41_64(state.A[3][0])
|
||||
// B[4][3] = leftRotate41_64(A[3][0])
|
||||
"adiw r26,32\n"
|
||||
"ld r8,Z\n"
|
||||
"ldd r9,Z+1\n"
|
||||
@ -1373,7 +1440,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r9\n"
|
||||
"st X+,r10\n"
|
||||
|
||||
// state.B[0][4] = leftRotate14_64(state.A[4][4])
|
||||
// B[0][4] = leftRotate14_64(A[4][4])
|
||||
"subi r26,160\n"
|
||||
"sbc r27,__zero_reg__\n"
|
||||
"adiw r30,40\n"
|
||||
@ -1414,7 +1481,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r12\n"
|
||||
"st X+,r13\n"
|
||||
|
||||
// state.B[1][4] = leftRotate61_64(state.A[4][2])
|
||||
// B[1][4] = leftRotate61_64(A[4][2])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+16\n"
|
||||
"ldd r9,Z+17\n"
|
||||
@ -1463,7 +1530,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r14\n"
|
||||
"st X+,r15\n"
|
||||
|
||||
// state.B[2][4] = leftRotate18_64(state.A[4][0])
|
||||
// B[2][4] = leftRotate18_64(A[4][0])
|
||||
"adiw r26,32\n"
|
||||
"ld r8,Z\n"
|
||||
"ldd r9,Z+1\n"
|
||||
@ -1500,7 +1567,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r12\n"
|
||||
"st X+,r13\n"
|
||||
|
||||
// state.B[3][4] = leftRotate56_64(state.A[4][3])
|
||||
// B[3][4] = leftRotate56_64(A[4][3])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+24\n"
|
||||
"ldd r9,Z+25\n"
|
||||
@ -1519,7 +1586,7 @@ void KeccakCore::keccakp()
|
||||
"st X+,r15\n"
|
||||
"st X+,r8\n"
|
||||
|
||||
// state.B[4][4] = leftRotate2_64(state.A[4][1])
|
||||
// B[4][4] = leftRotate2_64(A[4][1])
|
||||
"adiw r26,32\n"
|
||||
"ldd r8,Z+8\n"
|
||||
"ldd r9,Z+9\n"
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user