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/*
* Scoreboard interrupt handler
* Copyright © <2010>, Intel Corporation.
*
* This program is licensed under the terms and conditions of the
* Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
* http://www.opensource.org/licenses/eclipse-1.0.php.
*
*/
// Kernel name: scoreboard_sip.asm
//
// scoreboard interrupt handler
//
// Simply send a notification message to scoreboard thread
mov (8) m0<1>:ud 0x00000000:ud // Initialize message header payload with 0
#ifdef DOUBLE_SB
mov (1) m0.5<1>:ud 0x08000200:ud // Message length = 1 DWORD, sent to GRF offset 64 registers
#else
mov (1) m0.5<1>:ud 0x04000200:ud // Message length = 1 DWORD, sent to GRF offset 32 registers
#endif
send (8) null<1>:ud m0 null:ud 0x03108002 // Send notification message to scoreboard kernel
and (1) cr0.1:ud cr0.1:ud 0x00800000 // Clear preempt exception bit
and (1) cr0.0:ud cr0.0:ud 0x7fffffff:ud // Exit SIP routine
nop // Required by B-spec
.end_code
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