/*
* Load reference 10x5 area for chroma NV12 4x4 MC
* 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: LoadRef_C_10x5.asm
//
// Load reference 10x5 area for chroma NV12 4x4 MC
//#if !defined(__LOADREF_C_10x5__) // Make sure this is only included once
//#define __LOADREF_C_10x5__
#if 1
// Compute integer and fractional components of MV
asr (2) gMVX_INT<1>:w r[pMV,0]<2;2,1>:w 0x03:w {NoDDClr}
and (2) gMVX_FRACC<1>:w r[pMV,0]<2;2,1>:w 0x07:w {NoDDChk}
// Check whether MVY is integer
or.z.f0.0 (8) null:w gMVY_FRACC<0;1,0>:w 0:w
// Compute top-left corner position to be loaded
mov (2) gMSGSRC.0<1>:d gMVX_INT<2;2,1>:w
shl (1) gMSGSRC.0:d gMSGSRC.0:d 1:w
(f0.0) add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(2)+nBI_LC_DIFF:ud
(-f0.0) add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(3)+nBI_LC_DIFF:ud
// Read 16x5 pixels - TODO: Reading 12x5 instead of 16x5 took more time on CL. Why?
(f0.0) mov (1) gMSGSRC.2:ud 0x00030009:ud //{NoDDChk}
(-f0.0) mov (1) gMSGSRC.2:ud 0x00040009:ud //{NoDDChk}
send (8) gudREFC(0)<1> mMSGHDRC gMSGSRC<8;8,1>:ud DAPREAD pMSGDSC:ud
#else
add (1) pMSGDSC:ud gMSGDSC_R:ud RESP_LEN(3)+nBI_LC_DIFF:ud
// Compute integer and fractional components of MV
asr (2) gMVX_INT<1>:w r[pMV,0]<2;2,1>:w 0x03:w {NoDDClr}
and (2) gMVX_FRACC<1>:w r[pMV,0]<2;2,1>:w 0x07:w {NoDDChk}
// Compute top-left corner position to be loaded
mov (2) gMSGSRC.0<1>:d gMVX_INT<2;2,1>:w
shl (1) gMSGSRC.0:d gMSGSRC.0:d 1:w
// Read 16x5 pixels
mov (1) gMSGSRC.2:ud 0x00040009:ud {NoDDChk}
send (8) gudREFC(0)<1> mMSGHDRC gMSGSRC<8;8,1>:ud DAPREAD pMSGDSC:ud
#endif
//#endif // !defined(__LOADREF_C_10x5__)