a991dcef11
Add __movstr_i4_{odd,even} for -m4.
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Written by SHIMIZU Ryo.
2002-09-05 08:35:15 +00:00
f89823c1f8
Save 1-4 instructions on all cases except for the ret=0 case.
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This is probably the last version from me. :)
You are welcome to speed it up, of course. :)
Here's a benchmark on SH-4 200MHz.
9.2% faster if all the cases occur evenly.
return value C version previous vers this version speed ratio
of ffs() (ns/call) *1 (ns/call) (ns/call) *2 (*1/*2)
------------ ------------ ------------- ------------ -----------
0 86 81 81 1.06
1 110 106 91 1.21
2 132 106 92 1.43
3 165 117 96 1.72
4 201 116 95 2.12
5 237 107 99 2.39
6 271 106 101 2.68
7 307 116 107 2.87
8 342 116 105 3.26
9 376 126 111 3.39
10 410 127 110 3.73
11 446 136 115 3.88
12 483 134 116 4.16
13 518 125 119 4.35
14 551 126 120 4.59
15 587 135 127 4.62
16 624 136 126 4.95
17 658 139 126 5.22
18 694 140 126 5.51
19 727 148 131 5.55
20 764 150 131 5.83
21 799 141 135 5.92
22 834 142 135 6.18
23 868 152 140 6.20
24 903 153 142 6.36
25 939 140 127 7.39
26 974 141 126 7.73
27 1009 152 131 7.70
28 1044 148 130 8.03
29 1080 141 136 7.94
30 1115 141 136 8.20
31 1151 151 141 8.16
32 1185 151 140 8.46
2002-09-01 13:14:53 +00:00
fa5465079f
Slightly improved version of ffs(3).
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Partially from SHIMIZU Ryo <ryo@iij.ad.jp>. Thanks.
Some cases are slower, but other most cases are faster.
Here's a benchmark on SH-4 200MHz.
return value C version previous vers this version speed ratio
of ffs() (ns/call) *1 (ns/call) (ns/call) *2 (*1/*2)
------------ ------------ ------------- ------------ -----------
0 86 86 81 1.06
1 110 86 106 *(slower) 1.04
2 132 86 106 * 1.25
3 165 105 117 * 1.41
4 201 104 116 * 1.73
5 237 111 107 2.21
6 271 111 106 2.56
7 307 126 116 2.65
8 342 125 116 2.95
9 376 122 126 * 2.98
10 410 121 127 * 3.23
11 446 139 136 3.28
12 483 140 134 3.60
13 518 146 125 4.14
14 551 146 126 4.37
15 587 161 135 4.35
16 624 162 136 4.59
17 658 141 139 4.73
18 694 142 140 4.96
19 727 160 148 4.91
20 764 161 150 5.09
21 799 167 141 5.67
22 834 167 142 5.87
23 868 181 152 5.71
24 903 181 153 5.90
25 939 146 140 6.71
26 974 146 141 6.91
27 1009 166 152 6.64
28 1044 165 148 7.05
29 1080 171 141 7.66
30 1115 171 141 7.91
31 1151 185 151 7.62
32 1185 186 151 7.85
2002-08-28 15:34:35 +00:00
181f0a9b54
Tweak the previous change so that a prototype is always provided.
2002-08-25 21:09:45 +00:00
6736303e13
Use assembly version of ffs(3).
2002-08-24 06:39:48 +00:00
85ce1de27f
Oops, SYSLIBC_SCCS -> LIBC_SCCS
2002-08-24 06:37:24 +00:00
70b5675025
Assembly version of ffs(3).
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Confirmed to return the same value as that of the C version.
The results of a simple benchmark on SH-4 200MHz, is shown below.
I think this shows acceptable performance.
return value C version this version speed
of ffs() (ns/call) (ns/call) ratio
------------ --------- ------------ -----
0 86 86 1.00
1 110 86 1.27
2 132 86 1.53
3 165 105 1.57
4 201 104 1.93
5 237 111 2.13
6 271 111 2.44
7 307 126 2.43
8 342 125 2.73
9 376 122 3.08
10 410 121 3.38
11 446 139 3.20
12 483 140 3.45
13 518 146 3.54
14 551 146 3.77
15 587 161 3.64
16 624 162 3.85
17 658 141 4.66
18 694 142 4.88
19 727 160 4.54
20 764 161 4.74
21 799 167 4.78
22 834 167 4.99
23 868 181 4.79
24 903 181 4.98
25 939 146 6.43
26 974 146 6.67
27 1009 166 6.07
28 1044 165 6.32
29 1080 171 6.31
30 1115 171 6.52
31 1151 185 6.22
32 1185 186 6.37
2002-08-24 06:30:34 +00:00
3f5fba68de
Do not try to use "__builtin_ffs" on vax, ffs is an instruction already.
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Maybe possible to teach gcc to use it?
2002-08-23 08:45:27 +00:00
c0d823519c
GCC 2.95 supports __builtin_ffs(); use it.
2002-08-21 01:27:58 +00:00
dafc960ed6
Local label fixup.
2002-08-17 19:00:26 +00:00
d8ac0fb3aa
pull in ffs.S from libc for arm.
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The main benefit is that ffs always runs in constant time.
2002-08-17 01:22:33 +00:00
b98931f62e
Use .L prefix for all local labels.
2002-08-15 18:30:36 +00:00
7c4618a9ce
cpu_info is not in spr0, but spr_g_0.
2002-07-30 06:10:46 +00:00
6789db7962
Avoid redundant memory access.
2002-07-10 06:02:09 +00:00
59474a8c82
NetBSD, meet the SH-5 cpu.
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SH-5, meet NetBSD.
Let's hope this is the start of a long and fruitful relationship. :-)
This code, funded by Wasabi Systems, adds initial support for the
Hitachi SuperH(tm) SH-5 cpu architecture to NetBSD.
At the present time, NetBSD/evbsh5 only runs on a SH-5 core simulator
which has no simulated devices other than a simple console. However, it
is good enough to get to the "root device: " prompt.
Device driver support for Real SH-5 Hardware is in place, particularly for
supporting the up-coming Cayman evaluation board, and should be quite
easy to get running when the hardware is available.
There is no in-tree toolchain for this port at this time. Gcc-current has
rudimentary SH-5 support but it is known to be buggy. A working toolchain
was obtained from SuperH to facilitate this port. Gcc-current will be
fixed in due course.
The SH-5 architecture is fully 64-bit capable, although NetBSD/evbsh5 has
currently only been tested in 32-bit mode. It is bi-endian, via a boot-
time option and it also has an "SHcompact" mode in which it will execute
SH-[34] user-land instructions.
For more information on the SH-5, see www.superh.com. Suffice to say it
is *not* just another respin of the SH-[34].
2002-07-05 13:31:28 +00:00
3763adaefd
Avoid leaving junk in the top half of R0 on return.
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This fixes port-arm/17440.
2002-07-01 19:07:18 +00:00
10d47b4dd3
Updated version of cscope/mkid support. Check libkern and compat lib
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for source files. Also include header files in mkid run.
2002-06-18 23:46:52 +00:00
940fedda07
Fix make breakage. $ZDST != ${ZDST} in make. make clean/cleandir now works.
2002-06-15 19:30:56 +00:00
c3e57df04c
discard 256 bytes of output every time we stir (not just when initializing)
2002-06-14 03:05:46 +00:00
e978777b86
Added hppa support to libkern.
2002-06-06 20:03:37 +00:00
937b671271
use exit(int), not exit(void), consistently - even if the arg has no meaning.
2002-06-01 11:40:31 +00:00
c0e2bb0509
need libkern.h for bootloaders
2002-05-29 06:27:15 +00:00
a20462dc6e
Implement LIBSA_NO_FS_CLOSE, LIBSA_NO_FS_WRITE and LIBSA_NO_FS_SEEK.
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LIBSA_NO_FS_SYMLINK and LIBSA_FS_SINGLECOMPONENT are irrelevant here.
2002-05-28 14:30:53 +00:00
43079a573b
KNF.
2002-05-28 14:26:01 +00:00
2e926ba699
no need for libkern.h
2002-05-28 12:21:22 +00:00
0ac289dea9
have arc4random(9).
2002-05-28 10:09:24 +00:00
e34d4e21de
fix comment
2002-05-10 11:07:01 +00:00
5457f78a34
Don't bother testing if a uint8_t is > 256 -- that test is always false.
2002-05-09 02:44:39 +00:00
67c33ffcda
Remove two shadowed variables, one of which was set to what it was
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shadowing(!) and the other a temporary variable (as was it's shadow).
Code generated with "gcc -O2" is the same before and after.
2002-05-07 02:02:41 +00:00
9f680534b0
Add strtoul.
2002-05-05 11:23:24 +00:00
f98b9b43e8
Add strtoul.c
2002-04-24 16:56:36 +00:00
b0fa7eb2c1
Someone had a braino here; IP_TTL != IPDEFTTL. This caused the standalone
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udp traffic to only have a ttl of 4.
Found by Jens Nilsson, jens@rockstorm.se .
2002-04-23 09:16:09 +00:00
22143f5a44
Add strtoul.c, otherwise kernels using "wi* at pcmcia?" do not work
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anymore.
Why only four archs provide this is beyound me.
2002-04-16 06:36:02 +00:00
fd1c084a68
Add a 1byte pad to make the ustar_t word aligned so the uas_1cyl after it
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will also be word aligned. This makes the VAX VMB bootrom happy since it
doesn't support odd-aligned buffers.
2002-03-30 01:29:48 +00:00
cb520da5b3
Refresh from libc.
2002-03-28 00:46:08 +00:00
58830d68c5
Added brand-new integer multiply and divide support, used only
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on the m68000.
2002-03-26 22:49:32 +00:00
12810ed37d
Use size_t in prototype (so this will be LP64 clean for PPC64 someday).
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Calculate len separately for icache & dcache in case each has different
cacheline widths. Make the code for both loops the same except for the
dcbst/icbi. Deal with sizes >=2GB properly (like that'll happen but ...)
2002-03-26 21:20:24 +00:00
d617871b0c
On the m68000, if and only if gcc doesn't seem to know
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where libgcc.a is, fall back to one under DESTDIR.
2002-03-22 00:17:12 +00:00
6440db6488
* Add a NetBSD Vendor Class Identifier option as proposed on tech-net
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in message <20020216172527.C23901@dr-evil.shagadelic.org>.
* Print the bootp/dhcp response, as is done for rarp/bootparam
responses.
* Nuke bootp_flags and BOOTP_PXE; they're not used, nor should they be.
2002-03-20 23:10:39 +00:00
f0658bdada
make compile with _STANDALONE
2002-03-18 05:10:58 +00:00
d16aceedcc
Protect remaining references to 'debug' with NETIF_DEBUG.
2002-03-17 05:46:37 +00:00
f28e18332c
Move files[] from globals.c to its own file. Including all of globals.o
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breaks the size limit for at least the pmax bootblocks.
Fixes PR port-pmax/15924 from Gregory McGarry.
2002-03-15 13:23:34 +00:00
4c434f6210
Updated from libc.
2002-03-13 00:59:29 +00:00
104148a990
Sync with userland (1.1.4)
2002-03-12 00:42:23 +00:00
e2d6f22138
Add register prefixes to these.
2002-02-24 00:12:41 +00:00
6cad4b795d
Upon further reflection, move udiv/urem to libkern and out of vax/vax.
2002-02-24 00:08:19 +00:00
0b91bc440f
Move files[] from open.c to globals.c, so that it's possible to
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use libsa in an application where there are no file systems or
devices.
2002-02-23 05:44:24 +00:00
da694bd77b
fix spelos
2002-02-22 12:46:53 +00:00
f2d946a56e
blkset() used a register for set value that get clobbered by movc5,
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causing the set area to get unpredictable contents.
2002-02-19 21:46:17 +00:00
15bffcdeed
Add a comment describing what SA_USE_LOADFILE is for.
2002-02-17 23:22:22 +00:00
msaitoh