diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libbsp/i386/i386ex/timer/timerisr.s | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s b/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s index 3264248b05..53463e1e70 100644 --- a/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s +++ b/c/src/lib/libbsp/i386/i386ex/timer/timerisr.s @@ -28,6 +28,12 @@ PUBLIC (timerisr) SYM (timerisr): addl $250, SYM (Ttimer_val) # another 250 microseconds + pushl eax + movb 0xa0,al /* signal generic End Of Interrupt (EOI) to slave PIC */ + outb al, $0x20 + movb $0x20, al + outb al, $0x20 /* signal generic EOI to Master PIC */ + popl eax iret END_CODE |