sparcv9/gen/strncpy.s

71 	add	%o1, %o2, %o3		! src = src + n
72 	andcc	%o1, 7, %o4		! dword aligned ?
78 	ldub	[%o3 + %g4], %o1	! src[]
79 	stb	%o1, [%o2 + %g4]	! dst[] = src[]
82 	tst	%o1			! end of src reached (null byte) ?
95 	sllx	%o4, 32, %o1		! spread magic1
97 	or	%o4, %o1, %o4		!   to all 64 bits
110 	ldx	[%o3 + %g4], %o1	! src dword
113 	andn	%o5, %o1, %g1		! ~dword & 0x8080808080808080
114 	sub	%o1, %o4, %g5		! dword - 0x0101010101010101
117 	stx	%o1, [%o2 + %g4]	! store word to dst (address pre-incremented)
124 	srlx	%o1, 56, %g1		! first byte
127 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
128 	srlx	%o1, 48, %g1		! second byte
131 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
132 	srlx	%o1, 40, %g1		! third byte
135 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
136 	srlx	%o1, 32, %g1		! fourth byte
139 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
140 	srlx	%o1, 24, %g1		! fifth byte
143 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
144 	srlx	%o1, 16, %g1		! sixth byte
147 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
148 	srlx	%o1, 8, %g1		! seventh byte
151 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
152 	stb	%o1, [%o3 + 7]		! store eighth byte
222 	srlx	%o1, 56, %g1		! first byte
227 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
228 	srlx	%o1, 48, %g1		! second byte
233 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
234 	srlx	%o1, 40, %g1		! third byte
239 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
240 	srlx	%o1, 32, %g1		! fourth byte
245 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
246 	srlx	%o1, 24, %g1		! fifth byte
251 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
252 	srlx	%o1, 16, %g1		! sixth byte
257 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
258 	srlx	%o1, 8, %g1		! seventh byte
263 	movz	%ncc, %g0, %o1		! if so, start padding with null bytes
265 	stb	%o1, [%o2 + %g4]	! store eigth byte
270 	ldx	[%o3 + %g4], %o1	! x = src[]
273 	andn	%o5, %o1, %g1		! ~x & 0x8080808080808080
274 	sub	%o1, %o4, %g5		! x - 0x0101010101010101
278 	srlx	%o1, 56, %g1		! %g1<7:0> = first byte; word aligned now
280 	srlx	%o1, 24, %g1		! %g1<31:0> = bytes 2, 3, 4, 5
282 	srlx	%o1, 8, %g1		! %g1<15:0> = bytes 6, 7
285 	stb	%o1, [%g5 + 7]		! store eigth byte
288 	ldx	[%o3 + %g4], %o1	! x = src[]
291 	andn	%o5, %o1, %g1		! ~x & 0x8080808080808080
292 	sub	%o1, %o4, %g5		! x - 0x0101010101010101
296 	srlx	%o1, 56, %g1		! %g1<7:0> = first byte; half-word aligned now
298 	srlx	%o1, 40, %g1		! %g1<15:0> = bytes 2, 3
300 	srlx	%o1, 8, %g1		! %g1<31:0> = bytes 4, 5, 6, 7
303 	stb	%o1, [%g5 + 7]		! store eigth byte
306 	ldx	[%o3 + %g4], %o1	! x = src[]
309 	andn	%o5, %o1, %g1		! ~x & 0x8080808080808080
310 	sub	%o1, %o4, %g5		! x - 0x0101010101010101
314 	srlx	%o1, 48, %g1		! %g1<15:0> = bytes 1, 2; word aligned now
316 	srlx	%o1, 16, %g1		! %g1<31:0> = bytes 3, 4, 5, 6
319 	sth	%o1, [%g5 + 6]		! store bytes 7, 8
324 	ldx	[%o3 + %g4], %o1	! x = src[]
327 	andn	%o5, %o1, %g1		! ~x & 0x8080808080808080
328 	sub	%o1, %o4, %g5		! x - 0x0101010101010101
332 	srlx	%o1, 32, %g1		! %g1<31:0> = bytes 1, 2, 3, 4
335 	stw	%o1, [%g5 + 4]		! store bytes 5, 6, 7, 8