diff --git a/codec/common/satd_sad.asm b/codec/common/satd_sad.asm
index 8364f55c..1c7f2faf 100644
--- a/codec/common/satd_sad.asm
+++ b/codec/common/satd_sad.asm
@@ -2297,7 +2297,7 @@ WELS_EXTERN WelsSampleSad4x4_mmx
 
 align 16
 ;***********************************************************************
-;   int32_t __cdecl WelsSampleSad4x4_mmx (uint8_t *, int32_t, uint8_t *, int32_t )
+;   int32_t WelsSampleSad4x4_mmx (uint8_t *, int32_t, uint8_t *, int32_t )
 ;***********************************************************************
 WelsSampleSad4x4_mmx:
     ;push    ebx
diff --git a/codec/decoder/core/asm/dct.asm b/codec/decoder/core/asm/dct.asm
index 44af75f0..eeab21ce 100644
--- a/codec/decoder/core/asm/dct.asm
+++ b/codec/decoder/core/asm/dct.asm
@@ -87,7 +87,7 @@ WELS_EXTERN IdctResAddPred_mmx
 
 ALIGN 16
 ;*******************************************************************************
-;   void __cdecl IdctResAddPred_mmx( uint8_t *pPred, const int32_t kiStride, int16_t *pRs )
+;   void IdctResAddPred_mmx( uint8_t *pPred, const int32_t kiStride, int16_t *pRs )
 ;*******************************************************************************
 
 IdctResAddPred_mmx:
diff --git a/codec/decoder/core/asm/intra_pred.asm b/codec/decoder/core/asm/intra_pred.asm
index 295bd96a..012da98d 100644
--- a/codec/decoder/core/asm/intra_pred.asm
+++ b/codec/decoder/core/asm/intra_pred.asm
@@ -184,7 +184,7 @@ WELS_EXTERN WelsDecoderI16x16LumaPredPlane_sse2
 
 ALIGN 16
 ;*******************************************************************************
-;   void __cdecl WelsDecoderI4x4LumaPredH_sse2(uint8_t *pPred, const int32_t kiStride)
+;   void WelsDecoderI4x4LumaPredH_sse2(uint8_t *pPred, const int32_t kiStride)
 ;
 ;	pPred must align to 16
 ;*******************************************************************************
@@ -515,7 +515,7 @@ ALIGN 16
 ;	7 is the start pixel of current 4x4 block
 ;	pPred[7] = ([6]+[0]*2+[1]+2)/4
 ;
-;   void __cdecl WelsDecoderI4x4LumaPredDDR_mmx(uint8_t *pPred, const int32_t kiStride)
+;   void WelsDecoderI4x4LumaPredDDR_mmx(uint8_t *pPred, const int32_t kiStride)
 ;
 ;*******************************************************************************
 WelsDecoderI4x4LumaPredDDR_mmx:
@@ -571,7 +571,7 @@ WelsDecoderI4x4LumaPredDDR_mmx:
 
 ALIGN 16
 ;*******************************************************************************
-;	void __cdecl WelsDecoderIChromaPredH_mmx(uint8_t *pPred, const int32_t kiStride)
+;	void WelsDecoderIChromaPredH_mmx(uint8_t *pPred, const int32_t kiStride)
 ;   copy 8 pixel of 8 line from left
 ;*******************************************************************************
 %macro MMX_PRED_H_8X8_ONE_LINE 4
@@ -637,7 +637,7 @@ WelsDecoderIChromaPredH_mmx:
 
 ALIGN 16
 ;*******************************************************************************
-;	void __cdecl WelsDecoderIChromaPredV_mmx(uint8_t *pPred, const int32_t kiStride)
+;	void WelsDecoderIChromaPredV_mmx(uint8_t *pPred, const int32_t kiStride)
 ;   copy 8 pixels from top 8 pixels
 ;*******************************************************************************
 WELS_EXTERN WelsDecoderIChromaPredV_mmx
diff --git a/codec/encoder/core/asm/dct.asm b/codec/encoder/core/asm/dct.asm
index 254250e8..080efed4 100644
--- a/codec/encoder/core/asm/dct.asm
+++ b/codec/encoder/core/asm/dct.asm
@@ -132,7 +132,7 @@ SSE2_DeQuant8 dw  10, 13, 10, 13, 13, 16, 13, 16,
 SECTION .text
 ALIGN 16
 ;***********************************************************************
-;   void __cdecl WelsDctT4_mmx( int16_t *pDct[4], uint8_t *pix1, int32_t i_pix1, uint8_t *pix2, int32_t i_pix2 )
+;   void WelsDctT4_mmx( int16_t *pDct[4], uint8_t *pix1, int32_t i_pix1, uint8_t *pix2, int32_t i_pix2 )
 ;***********************************************************************
 WELS_EXTERN WelsDctT4_mmx
 WelsDctT4_mmx:
@@ -169,7 +169,7 @@ WelsDctT4_mmx:
 
 
 ;***********************************************************************
-;   void __cdecl WelsIDctT4Rec_mmx(uint8_t *rec, int32_t stride, uint8_t *pred, int32_t pred_stride, int16_t *rs)
+;   void WelsIDctT4Rec_mmx(uint8_t *rec, int32_t stride, uint8_t *pred, int32_t pred_stride, int16_t *rs)
 ;***********************************************************************
 WELS_EXTERN WelsIDctT4Rec_mmx
 WelsIDctT4Rec_mmx:
diff --git a/codec/encoder/core/asm/intra_pred.asm b/codec/encoder/core/asm/intra_pred.asm
index 95943b74..5f56db06 100644
--- a/codec/encoder/core/asm/intra_pred.asm
+++ b/codec/encoder/core/asm/intra_pred.asm
@@ -195,7 +195,7 @@ WELS_EXTERN WelsI16x16LumaPredPlane_sse2
 
 ALIGN 16
 ;***********************************************************************
-;   void __cdecl WelsI4x4LumaPredH_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
+;   void WelsI4x4LumaPredH_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
 ;
 ;	pred must align to 16
 ;***********************************************************************
@@ -508,7 +508,7 @@ ALIGN 16
 ;	7 is the start pixel of current 4x4 block
 ;	pred[7] = ([6]+[0]*2+[1]+2)/4
 ;
-;   void __cdecl WelsI4x4LumaPredDDR_mmx(uint8_t *pred,uint8_t *pRef,int32_t stride)
+;   void WelsI4x4LumaPredDDR_mmx(uint8_t *pred,uint8_t *pRef,int32_t stride)
 ;
 ;***********************************************************************
 WelsI4x4LumaPredDDR_mmx:
@@ -567,7 +567,7 @@ ALIGN 16
 ;	6 is the start pixel of current 4x4 block
 ;	pred[6] = ([1]+[2]+[3]+[4]+[5]+[10]+[15]+[20]+4)/8
 ;
-;   void __cdecl WelsI4x4LumaPredDc_sse2(uint8_t *pred,uint8_t *pRef,int32_t stride)
+;   void WelsI4x4LumaPredDc_sse2(uint8_t *pred,uint8_t *pRef,int32_t stride)
 ;
 ;***********************************************************************
 WelsI4x4LumaPredDc_sse2:
@@ -608,7 +608,7 @@ WelsI4x4LumaPredDc_sse2:
 
 ALIGN 16
 ;***********************************************************************
-;	void __cdecl WelsIChromaPredH_mmx(uint8_t *pred, uint8_t *pRef, int32_t stride)
+;	void WelsIChromaPredH_mmx(uint8_t *pred, uint8_t *pRef, int32_t stride)
 ;   copy 8 pixel of 8 line from left
 ;***********************************************************************
 %macro MMX_PRED_H_8X8_ONE_LINE 4
@@ -670,7 +670,7 @@ WelsIChromaPredH_mmx:
 
 ALIGN 16
 ;***********************************************************************
-;	void __cdecl WelsI4x4LumaPredV_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
+;	void WelsI4x4LumaPredV_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
 ;   copy pixels from top 4 pixels
 ;***********************************************************************
 WELS_EXTERN WelsI4x4LumaPredV_sse2
@@ -688,7 +688,7 @@ WelsI4x4LumaPredV_sse2:
 
 ALIGN 16
 ;***********************************************************************
-;	void __cdecl WelsIChromaPredV_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
+;	void WelsIChromaPredV_sse2(uint8_t *pred, uint8_t *pRef, int32_t stride)
 ;   copy 8 pixels from top 8 pixels
 ;***********************************************************************
 WELS_EXTERN WelsIChromaPredV_sse2
diff --git a/codec/encoder/core/asm/memzero.asm b/codec/encoder/core/asm/memzero.asm
index 7b190626..d1724fa8 100644
--- a/codec/encoder/core/asm/memzero.asm
+++ b/codec/encoder/core/asm/memzero.asm
@@ -49,7 +49,7 @@ SECTION .text
 
 ALIGN 16
 ;***********************************************************************
-;_inline void __cdecl WelsPrefetchZero_mmx(int8_t const*_A);
+;void WelsPrefetchZero_mmx(int8_t const*_A);
 ;***********************************************************************
 WELS_EXTERN WelsPrefetchZero_mmx
 WelsPrefetchZero_mmx: