diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 1997-12-30 23:35:20 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 1997-12-30 23:35:20 +0000 |
| commit | 859118a9a4e715707083aa8d656ce9e9a19b3547 (patch) | |
| tree | 33b3c77866f89499387469653b9a43fa24af6e01 | |
| parent | 03ee54c664c4a96a7212f4470c80f94e20dc0661 (diff) | |
be carefull about div by zero
| -rw-r--r-- | sys/arch/i386/i386/microtime.s | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/arch/i386/i386/microtime.s b/sys/arch/i386/i386/microtime.s index 8c342f0b53c..27b417abe52 100644 --- a/sys/arch/i386/i386/microtime.s +++ b/sys/arch/i386/i386/microtime.s @@ -1,4 +1,4 @@ -/* $OpenBSD: microtime.s,v 1.9 1997/12/17 08:54:49 downsj Exp $ */ +/* $OpenBSD: microtime.s,v 1.10 1997/12/30 23:35:19 mickey Exp $ */ /* $NetBSD: microtime.s,v 1.16 1995/04/17 12:06:47 cgd Exp $ */ /*- @@ -151,7 +151,10 @@ pentium_microtime: .byte 0x0f, 0x31 # RDTSC subl _pentium_base_tsc,%eax sbbl _pentium_base_tsc+4,%edx - divl %ecx # convert to usec + orl %ecx, %ecx + jnz 1f + incl %ecx +1: divl %ecx # convert to usec jmp common_microtime #endif #endif |