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5b38fe900d
freebsd-dev/sys/alpha/include
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Doug Rabson 5b38fe900d Implement 'software completion' for floating point arithmetic. On the 
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>
1998-12-04 10:52:48 +00:00
..
pc Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
_limits.h These are a few of the alpha machine dependent header files - the first 1998-01-10 10:13:16 +00:00
alpha_cpu.h Major changes to the generic device framework for FreeBSD/alpha: 1998-06-14 13:46:10 +00:00
ansi.h Bring in _BSD_UINT8_T_, _BSD_UINT16_T_, and _BSD_UINT32_T from the i386 1998-10-12 23:57:58 +00:00
asm.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
atomic.h Change various syscalls to use size_t arguments instead of u_int. 1998-08-24 08:39:39 +00:00
bootinfo.h Typo fix. 1998-10-14 10:04:32 +00:00
bus_memio.h Port i386 bus_space and bus_dma to alpha. 1998-09-16 08:22:57 +00:00
bus_pio.h Port i386 bus_space and bus_dma to alpha. 1998-09-16 08:22:57 +00:00
bus.h Port i386 bus_space and bus_dma to alpha. 1998-09-16 08:22:57 +00:00
bwx.h Add definitions of EV56 INT1/INT2/INT4/INT8 memory spaces. 1998-07-31 09:14:49 +00:00
chipset.h * Add hooks to allow the X server to access I/O ports and memory. 1998-11-15 18:25:17 +00:00
clock.h Add support for adjkerntz (largely untested). 1998-10-06 08:40:18 +00:00
clockvar.h [Add missing files from previous commit] 1998-06-14 13:53:12 +00:00
cons.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
console.h Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
cpu.h Add support for adjkerntz (largely untested). 1998-10-06 08:40:18 +00:00
cpuconf.h Lots of changes, including: 1998-08-10 07:53:59 +00:00
cpufunc.h Add breakpoint() for BREAK_TO_DEBUGGER. 1998-08-17 08:21:31 +00:00
db_machdep.h Add support for kernel gdb. 1998-07-05 12:24:18 +00:00
elf_machdep.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
elf.h Add generic defines ELF_ARCH, ELF_CLASS, and ELF_DATA. These give 1998-09-14 20:30:13 +00:00
endian.h Header files which are linked from /usr/include to /usr/include/machine. 1998-01-10 22:09:53 +00:00
exec.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
float.h Header files which are linked from /usr/include to /usr/include/machine. 1998-01-10 22:09:53 +00:00
floatingpoint.h libtcl expects to see ieeefp.h definitions through this header. 1998-05-13 22:40:42 +00:00
fpu.h Implement 'software completion' for floating point arithmetic. On the 1998-12-04 10:52:48 +00:00
frame.h Add sc_traparg_a0, sc_traparg_a1 and sc_traparg_a2 to the sigcontext 1998-11-18 23:51:40 +00:00
ieee.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
ieeefp.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
in_cksum.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
inst.h Implement 'software completion' for floating point arithmetic. On the 1998-12-04 10:52:48 +00:00
intr.h Add support for 'vmstat -i'. 1998-11-28 09:55:16 +00:00
intrcnt.h Add support for 'vmstat -i'. 1998-11-28 09:55:16 +00:00
ipl.h Start using the new SWI registration system instead of hardwiring everything. 1998-09-26 14:25:32 +00:00
limits.h These are a few of the alpha machine dependent header files - the first 1998-01-10 10:13:16 +00:00
lock.h Add sio support. 1998-07-22 08:28:24 +00:00
md_var.h Add the ability to specify where on the at_shutdown queue a handler is 1998-10-30 05:41:15 +00:00
mouse.h Oops, I forgot to update this file when I changed moused recently. 1998-11-22 11:57:59 +00:00
pal.h PAL codes needed for asm.h 1998-01-10 22:42:21 +00:00
param.h Add a new library function getobjformat(). It checks all the 1998-09-09 01:21:25 +00:00
pcb.h Implement 'software completion' for floating point arithmetic. On the 1998-12-04 10:52:48 +00:00
pmap.h Use address space numbers to reduce TLB flushes. 1998-08-23 16:05:55 +00:00
proc.h * Add hooks to allow the X server to access I/O ports and memory. 1998-11-15 18:25:17 +00:00
profile.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
prom.h Implement promcncheckc. 1998-07-12 16:15:06 +00:00
psl.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
pte.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
ptrace.h Make ptrace work. 1998-07-15 20:16:28 +00:00
reg.h Add initial support for the FreeBSD/alpha kernel. This is very much a 1998-06-10 10:57:29 +00:00
reloc.h Import NetBSD/Alpha headers needed to get the FreeBSD userland to compile 1998-03-09 05:43:16 +00:00
resource.h Definitions for alpha specific device resources. 1998-11-17 10:40:33 +00:00
rpb.h Add Miata system type and pull in the LOCATE_PCS macro from NetBSD. 1998-08-17 08:26:12 +00:00
setjmp.h Suggested by: bde 1998-01-20 09:09:24 +00:00
signal.h Add sc_traparg_a0, sc_traparg_a1 and sc_traparg_a2 to the sigcontext 1998-11-18 23:51:40 +00:00
stdarg.h Header files which are linked from /usr/include to /usr/include/machine. 1998-01-10 22:09:53 +00:00
swiz.h Add some more useful macros. 1998-08-07 08:17:39 +00:00
sysarch.h Definitions for alpha specific system calls. 1998-11-17 10:40:07 +00:00
types.h Changed to the C9x draft spelling of the (unsigned) integral type 1998-07-14 05:09:48 +00:00
varargs.h Header files which are linked from /usr/include to /usr/include/machine. 1998-01-10 22:09:53 +00:00
vmparam.h Major changes to the generic device framework for FreeBSD/alpha: 1998-06-14 13:46:10 +00:00