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Adjust NDEV value.

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Optimize reading of system time.
This commit is contained in:
Robert Nordier 1998-10-13 22:17:05 +00:00
parent 8e3278cbd6
commit c71b9b3c24
2 changed files with 16 additions and 22 deletions
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19
sys/boot/i386/boot2/boot2.c
View File

@ -14,7 +14,7 @@
*/
/*
* $Id: boot2.c,v 1.2 1998/10/13 17:41:06 rnordier Exp $
* $Id: boot2.c,v 1.3 1998/10/13 21:35:42 rnordier Exp $
*/
#include <sys/param.h>
@ -51,7 +51,7 @@
#define ARGS 0x800
#define NOPT 8
#define BSIZEMAX 8192
#define NDEV 3
#define NDEV 5
#define MEM_BASE 0x12
#define MEM_EXT 0x15
#define V86_CY(x) ((x) & 1)
@ -712,22 +712,19 @@ drvread(void *buf, unsigned lba, unsigned nblk)
static int
keyhit(unsigned ticks)
{
uint32_t x;
uint32_t t0, t1;
x = 0;
t0 = 0;
for (;;) {
v86.addr = 0x16;
v86.eax = 0x100;
v86int();
if (!V86_ZR(v86.efl))
return 1;
v86.addr = 0x1a;
v86.eax = 0;
v86.edx = 0;
v86int();
if (!x)
x = v86.edx;
else if (v86.edx < x || v86.edx > x + ticks)
t1 = *(uint32_t *)PTOV(0x46c);
if (!t0)
t0 = t1;
if (t1 < t0 || t1 >= t0 + ticks)
return 0;
}
}

19
sys/boot/i386/gptboot/gptboot.c
View File

@ -14,7 +14,7 @@
*/
/*
* $Id: boot2.c,v 1.2 1998/10/13 17:41:06 rnordier Exp $
* $Id: boot2.c,v 1.3 1998/10/13 21:35:42 rnordier Exp $
*/
#include <sys/param.h>
@ -51,7 +51,7 @@
#define ARGS 0x800
#define NOPT 8
#define BSIZEMAX 8192
#define NDEV 3
#define NDEV 5
#define MEM_BASE 0x12
#define MEM_EXT 0x15
#define V86_CY(x) ((x) & 1)
@ -712,22 +712,19 @@ drvread(void *buf, unsigned lba, unsigned nblk)
static int
keyhit(unsigned ticks)
{
uint32_t x;
uint32_t t0, t1;
x = 0;
t0 = 0;
for (;;) {
v86.addr = 0x16;
v86.eax = 0x100;
v86int();
if (!V86_ZR(v86.efl))
return 1;
v86.addr = 0x1a;
v86.eax = 0;
v86.edx = 0;
v86int();
if (!x)
x = v86.edx;
else if (v86.edx < x || v86.edx > x + ticks)
t1 = *(uint32_t *)PTOV(0x46c);
if (!t0)
t0 = t1;
if (t1 < t0 || t1 >= t0 + ticks)
return 0;
}
}