src/sys/alpha/include/pcb.h, branch release/3.0.0_cvs FreeBSD source tree This commit was manufactured by cvs2svn to create tag 1999-01-21T00:55:32+00:00 cvs2svn cvs2svn@FreeBSD.org 1999-01-21T00:55:32+00:00 2e61cbb7f50878e738849ea4384118c13733f09c 'RELENG_3_0_0_RELEASE'. This commit was manufactured to restore the state of the 3.0-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs. 
'RELENG_3_0_0_RELEASE'.

This commit was manufactured to restore the state of the 3.0-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.
This commit was manufactured by cvs2svn to create tag 1999-01-21T00:55:32+00:00 cvs2svn cvs2svn@FreeBSD.org 1999-01-21T00:55:32+00:00 76b5366091f76c9bc73570149ef5055648fc2c39 'RELENG_3_0_0_RELEASE'. 
'RELENG_3_0_0_RELEASE'.
Implement 'software completion' for floating point arithmetic. On the 1998-12-04T10:52:48+00:00 Doug Rabson dfr@FreeBSD.org 1998-12-04T10:52:48+00:00 5b38fe900d505bcfed3afc428cff5710109aed29 alpha, operations involving non-finite numbers or denormalised numbers or operations which should generate such numbers will cause an arithmetic exception. For programs which follow some strict code generation rules, the kernel trap handler can then 'complete' the operation by emulating the faulting instruction. To use software completion, a program must be compiled with the arguments '-mtrap-precision=i' and '-mfp-trap-mode=su' or '-mfp-trap-mode=sui'. Programs compiled in this way can use non-finite and denormalised numbers at the expense of slightly less efficient code generation of floating point instructions. Programs not compiled with these options will receive a SIGFPE signal when non-finite or denormalised numbers are used or generated. Reviewed by: John Polstra <jdp@polstra.com> 
alpha, operations involving non-finite numbers or denormalised numbers
or operations which should generate such numbers will cause an arithmetic
exception.  For programs which follow some strict code generation rules,
the kernel trap handler can then 'complete' the operation by emulating
the faulting instruction.

To use software completion, a program must be compiled with the arguments
'-mtrap-precision=i' and '-mfp-trap-mode=su' or '-mfp-trap-mode=sui'.
Programs compiled in this way can use non-finite and denormalised numbers
at the expense of slightly less efficient code generation of floating
point instructions.  Programs not compiled with these options will receive
a SIGFPE signal when non-finite or denormalised numbers are used or
generated.

Reviewed by: John Polstra <jdp@polstra.com>
Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09T05:43:16+00:00 John Birrell jb@FreeBSD.org 1998-03-09T05:43:16+00:00 74712ec9742f5668a837880270247c5f7e9f0769 (and even run). These files don't necessarily make sense for a FreeBSD/Alpha kernel build. That will come later and these files will be changed accordingly. 
(and even run). These files don't necessarily make sense for a
FreeBSD/Alpha kernel build. That will come later and these files
will be changed accordingly.