Lines Matching +full:0 +full:x15

24  * similarly for row 'd'.  (brot, drot) start out as (0, 0) but we make it such
42 	X15	.req	r14
49 	and		\t1, \in, #0xff00
50 	and		\t2, \in, #0xff0000
127 	__strd		X8_X10, X9_X11, sp, 0
130 	// quarterrounds: (x2, x6, x10, x14) and (x3, x7, x11, x15)
131 	_halfround	X2, X6, X8_X10, X14,  X3, X7, X9_X11, X15
138 	// quarterrounds: (x0, x5, x10, x15) and (x1, x6, x11, x12)
139 	_halfround	X0, X5, X8_X10, X15,  X1, X6, X9_X11, X12
143 	__ldrd		X8_X10, X9_X11, sp, 0
150 	.set brot, 0
151 	.set drot, 0
160 	// Stack: unused0-unused1 x10-x11 x0-x15 OUT IN LEN
161 	// Registers contain x0-x9,x12-x15.
163 	// Do the core ChaCha permutation to update x0-x15.
168 	// Registers contain x0-x9,x12-x15.
169 	// x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
171 	// Free up some registers (r8-r12,r14) by pushing (x8-x9,x12-x15).
172 	push		{X8_X10, X9_X11, X12, X13, X14, X15}
192 	// Stack: x8-x9 x12-x15 x10-x11 orig_x0-orig_x15 OUT IN LEN
194 	// x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
226 	// x8-x15
227 	pop		{r0-r7}			// (x8-x9,x12-x15,x10-x11)
247 	add		r5, r11, r5, ror #drot	// x15
253 	eor		r5, r5, r7		// x15
261 	// Stack: x0-x15 OUT IN LEN
281 	ldmia		r14, {r10-r12,r14}	// load x12-x15
293 	// Stack: ks0-ks15 x8-x9 x12-x15 x10-x11 orig_x0-orig_x15 OUT IN LEN
295 	// x4-x7 are rotated by 'brot'; x12-x15 are rotated by 'drot'.
318 	// Save keystream for x8-x15
319 	ldm		r8, {r0-r7}		// (x8-x9,x12-x15,x10-x11)
333 	add		r5, r11, r5, ror #drot	// x15
337 	// Stack: ks0-ks15 unused0-unused7 x0-x15 OUT IN LEN
390 	cmp		r2, #0			// len == 0?
398 	// Push state x0-x15 onto stack.
402 	ldm		X12, {X12,X13,X14,X15}
403 	push		{X12,X13,X14,X15}
419 0:	add		sp, #76
423 	b		0b
437 	ldm		r14, {r10-r12,r14}	// load x12-x15
444 0:	add		sp, #16
446 	// Fix up rotations of x12-x15
451 	ror		X15, X15, #drot
453 	// Store (x0-x3,x12-x15) to 'out'
454 	stm		r4, {X0,X1,X2,X3,X12,X13,X14,X15}
459 	b		0b