mycroft
1fe07f186d
Separate curbrk and mincrk.
1994-01-27 15:08:03 +00:00
mycroft
3463cb4eef
Trivial speedup inspired by SPARC code.
1994-01-27 15:00:49 +00:00
mycroft
ef980f76fe
One last tweak.
1994-01-27 06:53:25 +00:00
mycroft
22e614ce10
Random cleanup.
1994-01-27 06:34:59 +00:00
mycroft
9c8862a970
Pedanticism.
1994-01-27 06:34:02 +00:00
mycroft
3cf1bd9939
SYS_brk --> SYS_break. Where's my axe?
1994-01-27 04:30:34 +00:00
mycroft
17b2a501cd
Stylistic changes.
1994-01-27 04:16:50 +00:00
mycroft
0496df7164
More stylistic changes.
1994-01-27 04:14:50 +00:00
mycroft
e84d8b28f3
Stylistic changes.
1994-01-27 04:10:20 +00:00
mycroft
b6b0ec3424
Fix bug jtc introduced.
1994-01-27 04:07:13 +00:00
jtc
7835a85a78
Optimization tweaks:
...
Use testl %reg,%reg instead of cmpl $0,%reg
Use xorl %reg,%reg instead of movl $0,%reg
1994-01-24 19:24:36 +00:00
pk
39c0326588
PIC_*() macros moved to <machine/asm.h>
1994-01-07 00:48:22 +00:00
jtc
0e09f939b2
Fix bug #24 by renaming _logname_valid to __logname_valid.
1993-12-18 01:02:47 +00:00
mycroft
cc81da7447
Shorten setup for longword operations a little.
1993-12-10 10:51:11 +00:00
mycroft
dca61f6f90
Share code.
1993-12-10 10:45:18 +00:00
jtc
a9e5cc4f83
No reason these can't share code...
1993-12-08 22:10:14 +00:00
pk
f3f7594fc9
Use PIC_PLT for error returns.
...
Correct operand order in accessing `minbrk' and `curbrk'.
1993-12-06 23:28:08 +00:00
pk
417e7a6fff
Remove spurious PIC_EPILOGUE and PIC_GOTOFF macros.
1993-12-06 23:27:04 +00:00
pk
3581f42619
Use PIC_PLT() macro for error returns
1993-12-06 23:26:04 +00:00
cgd
0ada107897
update for .S and MACHINE_ARCH
1993-12-04 02:33:35 +00:00
mycroft
448e711c78
Clean up deleted files.
1993-12-04 01:28:42 +00:00
jtc
32d96ccd3c
Remove special case for len == 0 --- It wasn't needed. By dropping the
...
conditional, the general case (where we are actually swapping bytes) is
a tiny bit faster.
1993-11-25 01:18:24 +00:00
cgd
2be44f5352
copy SYS.h and DEFS.h, too.
1993-11-05 22:44:00 +00:00
jtc
4418616857
Move the old berkeley sccs id into the header comment like it is done
...
for other source files.
1993-10-21 02:19:25 +00:00
jtc
6be8b83abc
Gcc helper functions should still use the ENTRY() macro so they will be
...
show up in profiled code. (The gcc helper functions in the other ports
do this allready).
1993-10-21 02:03:37 +00:00
jtc
34d1aad0c1
Use PIC_PLT macro with the function calls (as was done with setjmp()).
1993-10-21 01:59:44 +00:00
jtc
79591d04bc
So many files in arch/i386 have been changed I might as well run my
...
remove unecessary trailing whitespace script.
1993-10-21 01:48:14 +00:00
jtc
823c36577c
Change instances of LIBC_RCS back to LIBC_SCCS. If we are going to change
...
th LIBC_RCS, the entire source tree should be updated at once.
Remove && !defined(lint) from conditionals around rcs id's. No one is
ever going to pass a *.s file through lint.
1993-10-21 01:39:55 +00:00
jtc
97ad548bc0
Replaced instructions with immediate operands with compatible alternatives
...
saving a few bytes while the cycle count remains the same --- could
actually be faster, depending on the cache, prefetch queue, etc.
1993-10-20 18:50:15 +00:00
jtc
6802033480
sigsetjmp() for the i386.
1993-10-19 20:44:00 +00:00
jtc
39ff8227a8
Makefile.inc, basically a place to put KMSRC definition
1993-10-15 01:24:47 +00:00
jtc
479a1c33c9
Provide i386 versions of div and ldiv -- they are simpler than the C versions,
...
since the idiv instruction does the right thing wrt truncating towards zero.
1993-10-08 23:57:13 +00:00
jtc
e09d2f42db
Use "testb %cl,%cl" instead of "cmpb $0,%cl".
...
This saves three cycles per character, and reduces the size of the
function by eight bytes (the loop is unrolled eight times).
Thanks to davidg for pointing this out.
1993-10-08 01:25:51 +00:00
jtc
b3f9f8f6f4
Provide an assembly language version of labs().
...
Since ints and longs are both 32 bits on a i386, we could alias abs()
and labs() together as mycroft did with memmove()/memcpy(), but I'm
waiting on an interpretation ruling to see if it is legal.
1993-10-08 00:01:04 +00:00
cgd
0b9f50897e
make an arch directory in libc, and move all machine dirs into it
1993-10-07 00:17:24 +00:00
