diff options
| author | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
|---|---|---|
| committer | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
| commit | e5888a1ffdae813d7575f5fb02275c6bb07e5199 (patch) | |
| tree | d8d51eac403f07814b9e936eed0c9a79195e2450 /sys/src/ape/lib/ap/386/cycles.s | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/ape/lib/ap/386/cycles.s')
| -rwxr-xr-x | sys/src/ape/lib/ap/386/cycles.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/src/ape/lib/ap/386/cycles.s b/sys/src/ape/lib/ap/386/cycles.s new file mode 100755 index 000000000..d1acbd2fc --- /dev/null +++ b/sys/src/ape/lib/ap/386/cycles.s @@ -0,0 +1,8 @@ +#define RDTSC BYTE $0x0F; BYTE $0x31 + +TEXT _cycles(SB),1,$0 /* time stamp counter; cycles since power up */ + RDTSC + MOVL vlong+0(FP), CX /* &vlong */ + MOVL AX, 0(CX) /* lo */ + MOVL DX, 4(CX) /* hi */ + RET |