diff options
| author | wollman <wollman@FreeBSD.org> | 1994-09-09 23:13:03 +0000 |
|---|---|---|
| committer | wollman <wollman@FreeBSD.org> | 1994-09-09 23:13:03 +0000 |
| commit | 7ae0ceacbd790042fc8fd8c57ceb9f029a9f7063 (patch) | |
| tree | 7a7915e914c73b1a56a67d5a7cd912dbccca3e80 /sys/amd64/isa/npx.c | |
| parent | 7ae6d81d7195b7a1bbde6cf488bb8a27b18f46bb (diff) | |
| download | FreeBSD-src-7ae0ceacbd790042fc8fd8c57ceb9f029a9f7063.zip FreeBSD-src-7ae0ceacbd790042fc8fd8c57ceb9f029a9f7063.tar.gz | |
Define new MIB variable, hw.floatingpoint, which is true if FP hardware
is present, and false if an emulator is being used.
Diffstat (limited to 'sys/amd64/isa/npx.c')
| -rw-r--r-- | sys/amd64/isa/npx.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/amd64/isa/npx.c b/sys/amd64/isa/npx.c index f7f9b27..fcc31ba 100644 --- a/sys/amd64/isa/npx.c +++ b/sys/amd64/isa/npx.c @@ -32,7 +32,7 @@ * SUCH DAMAGE. * * from: @(#)npx.c 7.2 (Berkeley) 5/12/91 - * $Id: npx.c,v 1.9 1994/06/11 05:17:15 davidg Exp $ + * $Id: npx.c,v 1.10 1994/08/13 03:50:11 wollman Exp $ */ #include "npx.h" @@ -119,6 +119,7 @@ struct proc *npxproc; static bool_t npx_ex16; static bool_t npx_exists; +int hw_float; static struct gate_descriptor npx_idt_probeintr; static int npx_intrno; static volatile u_int npx_intrs_while_probing; @@ -266,7 +267,7 @@ npxprobe1(dvp) control = 0x5a5a; fnstcw(&control); if ((control & 0x1f3f) == 0x033f) { - npx_exists = 1; + hw_float = npx_exists = 1; /* * We have an npx, now divide by 0 to see if exception * 16 works. @@ -323,7 +324,7 @@ npxattach(dvp) if (!npx_ex16 && !npx_irq13) { if (npx_exists) { printf("npx%d: Error reporting broken, using 387 emulator\n",dvp->id_unit); - npx_exists = 0; + hw_float = npx_exists = 0; } else { printf("npx%d: 387 Emulator\n",dvp->id_unit); } |
