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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-10-03 13:59:52 +0000
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-10-03 13:59:52 +0000
commit2ba017a2d5af01cc3ef0dc554252a521e8d7c4f8 (patch)
tree0e0db7e3fbb4fbe1be3c56ad6c80bb7d63effb93 /libc/string/ia64/memccpy.S
parent94bbeb72728193288f2bf071cf0e40293499045b (diff)
- use c89-style comments
Closes issue #5194
Diffstat (limited to 'libc/string/ia64/memccpy.S')
-rw-r--r--libc/string/ia64/memccpy.S102
1 files changed, 51 insertions, 51 deletions
diff --git a/libc/string/ia64/memccpy.S b/libc/string/ia64/memccpy.S
index 1afba3637..259d680bc 100644
--- a/libc/string/ia64/memccpy.S
+++ b/libc/string/ia64/memccpy.S
@@ -23,7 +23,7 @@
Inputs:
in0: dest
in1: src
- in2: char
+ in2: char
in3: byte count
This implementation assumes little endian mode (UM.be = 0).
@@ -69,75 +69,75 @@ ENTRY(memccpy)
.rotr r[MEMLAT + 7], tmp1[4], tmp2[4], val[4], tmp3[2], pos0[2]
.rotp p[MEMLAT + 6 + 1]
- mov ret0 = r0 // return NULL if no match
+ mov ret0 = r0 /* return NULL if no match */
.save pr, saved_pr
- mov saved_pr = pr // save the predicate registers
- mov dest = in0 // dest
+ mov saved_pr = pr /* save the predicate registers */
+ mov dest = in0 /* dest */
.save ar.lc, saved_lc
- mov saved_lc = ar.lc // save the loop counter
- mov saved_ec = ar.ec // save the loop counter
+ mov saved_lc = ar.lc /* save the loop counter */
+ mov saved_ec = ar.ec /* save the loop counter */
.body
- mov src = in1 // src
- extr.u char = in2, 0, 8 // char
- mov len = in3 // len
- sub tmp = r0, in0 // tmp = -dest
- cmp.ne p7, p0 = r0, r0 // clear p7
+ mov src = in1 /* src */
+ extr.u char = in2, 0, 8 /* char */
+ mov len = in3 /* len */
+ sub tmp = r0, in0 /* tmp = -dest */
+ cmp.ne p7, p0 = r0, r0 /* clear p7 */
;;
- and loopcnt = 7, tmp // loopcnt = -dest % 8
- cmp.ge p6, p0 = OP_T_THRES, len // is len <= OP_T_THRES
- mov ar.ec = 0 // ec not guaranteed zero on entry
-(p6) br.cond.spnt .cpyfew // copy byte by byte
+ and loopcnt = 7, tmp /* loopcnt = -dest % 8 */
+ cmp.ge p6, p0 = OP_T_THRES, len /* is len <= OP_T_THRES */
+ mov ar.ec = 0 /* ec not guaranteed zero on entry */
+(p6) br.cond.spnt .cpyfew /* copy byte by byte */
;;
cmp.eq p6, p0 = loopcnt, r0
mux1 charx8 = char, @brcst
(p6) br.cond.sptk .dest_aligned
- sub len = len, loopcnt // len -= -dest % 8
- adds loopcnt = -1, loopcnt // --loopcnt
+ sub len = len, loopcnt /* len -= -dest % 8 */
+ adds loopcnt = -1, loopcnt /* --loopcnt */
;;
mov ar.lc = loopcnt
-.l1: // copy -dest % 8 bytes
- ld1 value = [src], 1 // value = *src++
+.l1: /* copy -dest % 8 bytes */
+ ld1 value = [src], 1 /* value = *src++ */
;;
- st1 [dest] = value, 1 // *dest++ = value
+ st1 [dest] = value, 1 /* *dest++ = value */
cmp.eq p6, p0 = value, char
(p6) br.cond.spnt .foundit
br.cloop.dptk .l1
.dest_aligned:
- and sh1 = 7, src // sh1 = src % 8
- and tmp = -8, len // tmp = len & -OPSIZ
- and asrc = -8, src // asrc = src & -OPSIZ -- align src
- shr.u loopcnt = len, 3 // loopcnt = len / 8
- and len = 7, len ;; // len = len % 8
- shl sh1 = sh1, 3 // sh1 = 8 * (src % 8)
- adds loopcnt = -1, loopcnt // --loopcnt
- mov pr.rot = 1 << 16 ;; // set rotating predicates
- sub sh2 = 64, sh1 // sh2 = 64 - sh1
- mov ar.lc = loopcnt // set LC
- cmp.eq p6, p0 = sh1, r0 // is the src aligned?
+ and sh1 = 7, src /* sh1 = src % 8 */
+ and tmp = -8, len /* tmp = len & -OPSIZ */
+ and asrc = -8, src /* asrc = src & -OPSIZ -- align src */
+ shr.u loopcnt = len, 3 /* loopcnt = len / 8 */
+ and len = 7, len ;; /* len = len % 8 */
+ shl sh1 = sh1, 3 /* sh1 = 8 * (src % 8) */
+ adds loopcnt = -1, loopcnt /* --loopcnt */
+ mov pr.rot = 1 << 16 ;; /* set rotating predicates */
+ sub sh2 = 64, sh1 /* sh2 = 64 - sh1 */
+ mov ar.lc = loopcnt /* set LC */
+ cmp.eq p6, p0 = sh1, r0 /* is the src aligned? */
(p6) br.cond.sptk .src_aligned ;;
- add src = src, tmp // src += len & -OPSIZ
- mov ar.ec = MEMLAT + 6 + 1 // six more passes needed
- ld8 r[1] = [asrc], 8 // r[1] = w0
- cmp.ne p6, p0 = r0, r0 ;; // clear p6
+ add src = src, tmp /* src += len & -OPSIZ */
+ mov ar.ec = MEMLAT + 6 + 1 /* six more passes needed */
+ ld8 r[1] = [asrc], 8 /* r[1] = w0 */
+ cmp.ne p6, p0 = r0, r0 ;; /* clear p6 */
ALIGN(32)
.l2:
-(p[0]) ld8.s r[0] = [asrc], 8 // r[0] = w1
-(p[MEMLAT]) shr.u tmp1[0] = r[1 + MEMLAT], sh1 // tmp1 = w0 >> sh1
-(p[MEMLAT]) shl tmp2[0] = r[0 + MEMLAT], sh2 // tmp2 = w1 << sh2
+(p[0]) ld8.s r[0] = [asrc], 8 /* r[0] = w1 */
+(p[MEMLAT]) shr.u tmp1[0] = r[1 + MEMLAT], sh1 /* tmp1 = w0 >> sh1 */
+(p[MEMLAT]) shl tmp2[0] = r[0 + MEMLAT], sh2 /* tmp2 = w1 << sh2 */
(p[MEMLAT+4]) xor tmp3[0] = val[1], charx8
(p[MEMLAT+5]) czx1.r pos0[0] = tmp3[1]
-(p[MEMLAT+6]) chk.s r[6 + MEMLAT], .recovery1 // our data isn't
- // valid - rollback!
+(p[MEMLAT+6]) chk.s r[6 + MEMLAT], .recovery1 /* our data isn't */
+ /* valid - rollback! */
(p[MEMLAT+6]) cmp.ne p6, p0 = 8, pos0[1]
(p6) br.cond.spnt .gotit
-(p[MEMLAT+6]) st8 [dest] = val[3], 8 // store val to dest
-(p[MEMLAT+3]) or val[0] = tmp1[3], tmp2[3] // val = tmp1 | tmp2
+(p[MEMLAT+6]) st8 [dest] = val[3], 8 /* store val to dest */
+(p[MEMLAT+3]) or val[0] = tmp1[3], tmp2[3] /* val = tmp1 | tmp2 */
br.ctop.sptk .l2
br.cond.sptk .cpyfew
.src_aligned:
- cmp.ne p6, p0 = r0, r0 // clear p6
- mov ar.ec = MEMLAT + 2 + 1 ;; // set EC
+ cmp.ne p6, p0 = r0, r0 /* clear p6 */
+ mov ar.ec = MEMLAT + 2 + 1 ;; /* set EC */
.l3:
(p[0]) ld8.s r[0] = [src], 8
(p[MEMLAT]) xor tmp3[0] = r[MEMLAT], charx8
@@ -149,8 +149,8 @@ ENTRY(memccpy)
(p[MEMLAT+2]) st8 [dest] = r[MEMLAT+2], 8
br.ctop.dptk .l3
.cpyfew:
- cmp.eq p6, p0 = len, r0 // is len == 0 ?
- adds len = -1, len // --len;
+ cmp.eq p6, p0 = len, r0 /* is len == 0 ? */
+ adds len = -1, len /* --len; */
(p6) br.cond.spnt .restore_and_exit ;;
mov ar.lc = len
.l4:
@@ -163,14 +163,14 @@ ENTRY(memccpy)
.foundit:
(p6) mov ret0 = dest
.restore_and_exit:
- mov pr = saved_pr, -1 // restore the predicate registers
- mov ar.lc = saved_lc // restore the loop counter
- mov ar.ec = saved_ec ;; // restore the epilog counter
+ mov pr = saved_pr, -1 /* restore the predicate registers */
+ mov ar.lc = saved_lc /* restore the loop counter */
+ mov ar.ec = saved_ec ;; /* restore the epilog counter */
br.ret.sptk.many b0
.gotit:
.pred.rel "mutex" p6, p7
-(p6) mov value = val[3] // if coming from l2
-(p7) mov value = r[MEMLAT+2] // if coming from l3
+(p6) mov value = val[3] /* if coming from l2 */
+(p7) mov value = r[MEMLAT+2] /* if coming from l3 */
mov ar.lc = pos0[1] ;;
.l5:
extr.u tmp = value, 0, 8 ;;