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;/**
; * Function: omxVCCOMM_Copy8x8
; *
; * Description:
; * Copies the reference 8x8 block to the current block.
; * Parameters:
; * [in] pSrc - pointer to the reference block in the source frame; must be aligned on an 8-byte boundary.
; * [in] step - distance between the starts of consecutive lines in the reference frame, in bytes;
; * must be a multiple of 8 and must be larger than or equal to 8.
; * [out] pDst - pointer to the destination block; must be aligned on an 8-byte boundary.
; * Return Value:
; * OMX_Sts_NoErr - no error
; * OMX_Sts_BadArgErr - bad arguments; returned under any of the following conditions:
; * - one or more of the following pointers is NULL: pSrc, pDst
; * - one or more of the following pointers is not aligned on an 8-byte boundary: pSrc, pDst
; * - step <8 or step is not a multiple of 8.
; */
INCLUDE omxtypes_s.h
M_VARIANTS CortexA8
IF CortexA8
;//Input Arguments
pSrc RN 0
pDst RN 1
step RN 2
;//Local Variables
Count RN 3
Return RN 0
;// Neon Registers
X0 DN D0.S8
X1 DN D1.S8
X2 DN D2.S8
X3 DN D3.S8
M_START omxVCCOMM_Copy8x8
VLD1 {X0},[pSrc],step ;// Load 8 bytes from 8 byte aligned pSrc, pSrc=pSrc+step after load
VLD1 {X1},[pSrc],step
VLD1 {X2},[pSrc],step
VLD1 {X3},[pSrc],step
VST1 {X0,X1},[pDst]! ;// Store 16 bytes to 8 byte aligned pDst
VST1 {X2,X3},[pDst]!
VLD1 {X0},[pSrc],step
VLD1 {X1},[pSrc],step
VLD1 {X2},[pSrc],step
VLD1 {X3},[pSrc],step
VST1 {X0,X1},[pDst]!
VST1 {X2,X3},[pDst]!
MOV Return,#OMX_Sts_NoErr
M_END
ENDIF
END
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