Commit Graph

70 Commits

Author SHA1 Message Date
mycroft 65a1322cd9 Reverse sense of exception bits. 1995-04-09 21:55:20 +00:00
mycroft 42d9c8af6c Oops; need to use fnstenv/fldenv for this. 1995-04-09 21:00:57 +00:00
mycroft a94ab51d20 Fix typo. 1995-04-09 20:44:02 +00:00
mycroft 10b402aa60 Add fpset{mask,round,sticky}(). 1995-04-09 20:33:13 +00:00
mycroft ddbc579aa7 Another optimization. 1995-04-09 19:31:33 +00:00
mycroft 14e246dc4a Optimize. 1995-04-09 19:18:49 +00:00
jtc 907e54c9e9 ENTRY(fpgetmask) -> ENTRY(fpgetsticky) 1995-04-09 19:14:28 +00:00
jtc 80bba6a1e1 Added flt_rounds, fpget{round,mask,sticky}. 1995-04-07 14:57:16 +00:00
mycroft ce36f636ab Separate machine dependencies. 1995-03-20 14:45:27 +00:00
mycroft 4c34be6b52 Clean up deleted files. 1995-03-01 00:00:00 +00:00
cgd 572e3f3188 don't forget inifinity.c 1995-02-25 16:24:22 +00:00
cgd ea1ca14ecb need these for new gen/Makefile 1995-02-25 16:20:12 +00:00
cgd 6929ad87a5 need these now, with new net Makefile.inc 1995-02-25 14:58:43 +00:00
jtc e7d917e6eb Remove extra "u" constraint that caused gcc 2.6.3 not to compile this file.
Note that gcc 2.4.5, the compiler we are currently using, still compiles it
correctly after this change.
1995-02-17 06:01:47 +00:00
mycroft d04155c293 Optimize better. 1995-02-05 14:58:44 +00:00
jtc b4bd7fea24 Replaced pops with adds. 1994-12-24 01:16:44 +00:00
jtc 26eccb0a9b Exchange offsets of "saved signal mask" and "signal mask saved" so
that the layout of sigjmp_bufs and jmp_bufs are the same (except
for the "signal mask saved" appended to the end).
1994-12-24 01:05:44 +00:00
mycroft fcc40a849d If len == 0, then the result must be 0 regardless of the other arguments. 1994-11-24 16:36:35 +00:00
mycroft 2db41a19e7 Use trap gate to enter kernel. 1994-10-26 19:49:42 +00:00
mycroft 837f99d25c Clean up deleted files. 1994-10-06 04:38:25 +00:00
mycroft 345c8ef85c Clean up deleted files. 1994-04-02 05:36:54 +00:00
cgd da34d8a406 have cerror DTRT on returns, w.r.t. quads and -1. it needs to be done
here (think of syscall(SYS_lseek,...)).  also, kill bogus lseek thang.
1994-04-02 05:36:52 +00:00
mycroft b3086b2299 Need to set %edx to -1 before cerror, though perhaps we should have something
more generic for this.
1994-03-31 18:38:57 +00:00
mycroft a3450ab6e8 Add a .text and .align to SYSCALL(). 1994-03-31 18:31:23 +00:00
jtc 98cbb217ac mem -> reg & reg->reg moves take the same time; so save a cycle by reading
the block length from the stack instead of caching it in a register.
1994-03-22 01:15:47 +00:00
jtc 1f29a3d910 Smaller & Faster. 1994-03-16 17:40:23 +00:00
jtc 5ac78ccb34 [hn]to[nh][sl] functions used xchgb %h1,%b1 instead of the faster (on the
i486 & i586) rorw $8, %w1.
1994-03-16 17:34:14 +00:00
jtc 915f7d4d3d Use RCSID macro. 1994-03-12 01:48:26 +00:00
jtc c95cd47ba2 Use RCSID macro for RCS ID's. 1994-03-12 01:39:55 +00:00
mycroft 90ff28fef4 Style police. Use `je' and `jne' only on the result of an equality test;
use `jz' and `jnz' in all other cases.
1994-02-14 20:05:52 +00:00
jtc 7f582f99d4 Fix spelling mistake: cashe -> cache. 1994-02-14 17:45:16 +00:00
jtc 01284ad877 Performance improvement from Bruce Evans.
Removes one test instruction for each character.
1994-02-14 17:44:39 +00:00
jtc f28455f783 Use "ror $8,%ax" instead of "xchg %al,%ah": equal on a i386, 1 cycle faster
on a i486, and 2 cycles faster on a iPentium.
1994-02-14 17:43:19 +00:00
jtc 5cffad2151 Use movzbl, not movsbl, to zero extend for unsigned comparison.
Fix from Bruce Evans.
1994-02-07 20:57:05 +00:00
jtc e2c220f94b Fix spelling error in Copyright notice 1994-01-28 20:34:33 +00:00
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